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Teratec Construction Report: School

Teratec Construction Report: School

Solving problems at school! Introducing "TerraTech" construction examples for settlement correction and void filling.

We would like to introduce a case where we solved problems caused by subsidence and voids at a school using the Teratec method. 【Problem】 We received a consultation from a junior high school in Yamagata Prefecture stating, "The classroom floor is sagging, and the desks are wobbling." Upon investigation, it was confirmed that voids were present under the floors in six classrooms due to long-term ground subsidence. 【Reason for Choosing Teratec】 It was believed that the methods to address ground subsidence of concrete floors were either to redo the flooring or to apply a topping and adjust the level. However, considering the time required for moving, demolition work, and the curing period after concrete pouring, it was determined that the construction would take more than a month, making it difficult to complete during the summer vacation. Therefore, the Teratec method was adopted. 【Feedback After Construction】 By utilizing the summer vacation period to implement this method, we were able to completely eliminate the wobbling of desks and chairs. *For more details, please visit the external link page or feel free to contact us. https://teretek.jp/plus/case/school Toll-free number: 0120-873-835

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Customer Feedback Vol. 3 Refrigerated Warehouse "Teratec Method"

Customer Feedback Vol. 3 Refrigerated Warehouse "Teratec Method"

Introducing a conversation with Ichiyou regarding the floor sinking correction work using the Teratec method.

In September 2017, we spoke with Mr. Toshio Baba, Vice President of Oriichi Co., Ltd., who conducted floor sinking correction work for a refrigerated and frozen warehouse using the "Terra Tech Method." The company was founded in 1953 in Imaichi City, Tochigi Prefecture, with the aim of manufacturing and selling wooden folding boxes and paper containers. Since then, it has expanded its business to include cardboard manufacturing, corrugated production, a weight bag system division, a packaging division, a packaging materials and equipment division, and the refrigerated warehouse and frozen transportation division that we worked on this time. This document includes information about the situation before construction, the reasons for choosing our company, and details about the construction work. [Contents] ■ Situation before construction and the trigger for the inquiry ■ Reasons for choosing our company ■ I was surprised by the beauty of the finish ■ Space efficiency is important for refrigerated warehouses ■ Details about our construction work * You can download materials that include customer feedback. * For more details, please feel free to contact us. Toll-free number: 0120-873-835

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[Construction Example] Bag Manufacturing Factory in Miyagi Prefecture

[Construction Example] Bag Manufacturing Factory in Miyagi Prefecture

We will introduce a case of a bag manufacturing factory that sank due to ground subsidence and the impact of an earthquake!

We would like to introduce a case study of floor sinking correction work and subfloor void filling work carried out at a bag manufacturing factory located in Miyagi Prefecture. The neatly arranged bag-making machines were tilted due to floor sinking, which hindered production. As a temporary measure, legs (for height adjustment) were installed under the machines to level them, allowing work to continue. Consequently, we received a request for correction from the company, as we can quickly make adjustments without removing the machines, and we proceeded with the work. In addition to the floor sinking, voids were also observed under the floor, so we carried out the filling work as well. [Case Study] ■ Construction Area: Approximately 730m² ■ Maximum Sinking Amount: Approximately 110mm ■ Construction Period: 3 days *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Example] T Printing Company Factory in Miyagi Prefecture

[Construction Example] T Printing Company Factory in Miyagi Prefecture

We would like to introduce several examples of factories in the industrial zone of Miyagi Prefecture that have been modified using our construction method!

We would like to introduce a case of floor vibration suppression work carried out at the T Printing Company factory located in Miyagi Prefecture. In a factory where a machine weighing approximately 26 tons is placed, the floor began to vibrate after the earthquake. To confirm the situation before the installation of the machine, core drilling was performed at several locations. As a result, it was confirmed that there was a gap of up to approximately 180mm beneath the concrete. By carrying out gap filling work, we were able to restore the original performance of the concrete floor and suppress the floor vibrations. Additionally, we also conducted floor subsidence correction work at a factory of T Industry located in Miyagi Prefecture. 【Case Study】 <Floor Vibration Suppression Work at T Printing Company Factory in Miyagi Prefecture> ■ Construction: (Phase 1) July 2011, (Phase 2) October 2011 ■ Maximum Gap Size: Approximately 180mm ■ Total Construction Area: Approximately 160m2 ■ Actual Working Days: 1.5 days *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Correction Work for Floor Subsidence in Store - Continuous Night Work Without Stopping Business

[Construction Case] Correction Work for Floor Subsidence in Store - Continuous Night Work Without Stopping Business

Maximum subsidence of 144mm, construction area of approximately 2,300m2! Introduction of a case where corrections were made over 11 consecutive nights of construction.

Due to the impact of the Great East Japan Earthquake, the floor inside the store has significantly sunk. As a result of the floor sinking, gaps were observed between the floor and walls, as well as between the walls and ceiling. Therefore, our company carried out repair work. The "Upcon Method," which can be implemented at night during the business suspension, was adopted for the repairs. Additionally, voids were observed under the floor, so filling work was also conducted. 【Construction Overview】 ■ Construction Area: Approximately 2,300m2 ■ Maximum Settlement: 144mm ■ Construction completed in 2012, with repairs made over 11 consecutive nights. *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Parts Manufacturer Factory: Floor Slab Settlement Correction Work

[Construction Case] Parts Manufacturer Factory: Floor Slab Settlement Correction Work

A case where the earthen floor, which had subsided and developed gaps due to the earthquake, was repaired in a short construction period without demolishing the existing floor!

We would like to introduce a case of "floor slab settlement correction work" and "void filling work under the floor slab" conducted at a parts manufacturer factory in Fukushima Prefecture. There were various areas within the factory experiencing settlement and deflection, resulting in a wavy floor slab and the formation of voids in addition to the settlement. After the work was completed, the floor slab in the factory was corrected to nearly level, and to suppress vibrations caused by forklift passage, focused injection filling was performed in the aisle areas to mitigate vibrations. [Case Summary] ■ Construction Area: Approximately 1,470 m² ■ Maximum Settlement: 40 mm ■ Maximum Void: 60 mm ■ Area: Parts manufacturer located in Fukushima Prefecture ■ Construction Period: 11 days *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Food Processing Plant: Earthquake Recovery Floor Slab Settlement Correction Work

[Construction Case] Food Processing Plant: Earthquake Recovery Floor Slab Settlement Correction Work

Settlement of the earthen floor caused by the earthquake! Correcting the settled floor before the factory renovation work in a short period.

We would like to introduce a case of "floor sinking correction work (earthquake recovery work)" carried out at a food processing factory in Iwate Prefecture. Due to the impact of the Great East Japan Earthquake, extensive renovations were necessary, and to achieve a swift recovery, the Upcon method, which allows for quick corrections, was adopted. The construction area was approximately 1,135 m², with a maximum gap of 221 mm. The construction period was six days, utilizing two construction plant vehicles. 【Case Overview】 ■ Construction Area: Approximately 1,135 m² ■ Maximum Gap: 221 mm ■ Area: Iwate Prefecture ■ Construction Period: 6 days (※ Supported by two construction plant vehicles) *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Example] Warehouse and Factory: Floor Slab Settlement Correction and Void Filling Work

[Construction Example] Warehouse and Factory: Floor Slab Settlement Correction and Void Filling Work

Due to ground subsidence, there is sinking and sagging in the concrete floor! The items remain as they are, and the concrete floor will be repaired in a short time.

We would like to introduce a case of "floor sinking correction and void filling work" carried out at a warehouse and factory located in Hokkaido. Due to the effects of ground subsidence, there were signs of sinking and sagging in the floor, and we received a request for correction from the company. Before the work, the racks used for storing goods, which had become tilted due to floor sinking, were adjusted in height using spacers, but after the work, they became flat. [Case Overview] ■ Construction Area: 334m2 ■ Maximum Sinking Amount: 105mm ■ Construction Period: 3 days ■ Area: Sapporo City, Hokkaido *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Large Pachinko Parlor: Earthquake Recovery Work / Slab Floor Settlement Correction Work

[Construction Case] Large Pachinko Parlor: Earthquake Recovery Work / Slab Floor Settlement Correction Work

Settlement due to compaction: Significant sinking of the floor inside the store due to the impact of the Great East Japan Earthquake! We will introduce our response case.

We would like to introduce a case of "earthquake recovery work" and "floor subsidence correction work" carried out at a large pachinko parlor located in Fukushima Prefecture. In this case, the floor inside the store significantly subsided due to consolidation settlement and the impact of the Great East Japan Earthquake. The tilt of the floor caused discomfort while walking inside the store. An up-con method that can be corrected during nighttime when the store is closed was adopted, and our company carried out the subsidence correction work. 【Case Overview】 ■ Construction Area: Approximately 700m2 ■ Maximum Subsidence: 161mm ■ Area: Fukushima Prefecture ■ Construction Period: Continuous 4 nights *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Example] Supermarket: Subfloor Settlement Correction Work (Chiba Prefecture)

[Construction Example] Supermarket: Subfloor Settlement Correction Work (Chiba Prefecture)

Due to the impact of the Great East Japan Earthquake, the floor inside the store sank! A case where repairs were made during the night while the store was closed.

Here is a case study of "subfloor sinking correction work" conducted at a large supermarket in Chiba Prefecture. Due to the impact of the Great East Japan Earthquake, the floor inside the store sank significantly. The Upcon method, which can be corrected during the night while the store is closed, was adopted, and our company carried out the correction. Since the store mainly handles fresh food products, during the construction, we not only used plastic sheets for protection around the injection gun but also enclosed the injectors to prevent resin dispersion while working. [Case Overview] ■ Construction Area: Approximately 2,000 m² ■ Maximum Sinking Amount: 99 mm ■ Area: Chiba Prefecture ■ Construction Period: Continuous 9 nights * To expedite the construction period, two construction plant vehicles were used (2011). * For more details, please refer to the PDF document or feel free to contact us.

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[Construction Example] Repairing the gaps in the floors and walls of a large shopping center.

[Construction Example] Repairing the gaps in the floors and walls of a large shopping center.

A significant subsidence of the floor due to weak ground! Introducing a case where repairs were made at night during the business closure.

Here is a case study of "floor sinking correction" conducted at a large shopping center in Nara Prefecture. Due to weak ground, the floor sank significantly. As a result of the floor sinking, gaps were observed in various places, such as between the floor and the walls and between the walls and the ceiling. An up-con method that can be corrected during nighttime while the business is closed was adopted, and our company carried out the correction. 【Case Overview】 ■ Construction Area: Approximately 3,240m2 (Backyard 405m2, Inside Store 2,835m2) ■ Maximum Sinking Amount: 94mm ■ Area: Nara Prefecture ■ Construction Period: 25 nights ※ Supported by 2 construction plant vehicles *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Apartment: Correction of Sunken Floor in Entrance Hall / Filling of Underfloor Gaps and Voids

[Construction Case] Apartment: Correction of Sunken Floor in Entrance Hall / Filling of Underfloor Gaps and Voids

Resolve issues such as 'gaps between the wall and ceiling' in just one day with the Upcon construction method!

We would like to introduce a case of "subfloor sinking correction work" and "subfloor void filling work" carried out in a condominium located in Niigata Prefecture. In the RC apartment building (1st floor) we are introducing this time, due to floor sinking, there were issues not only with "floor tilting" but also with "gaps occurring between the walls and ceiling" and "doors not closing." After completing the subfloor sinking correction work and the subfloor void (cavity) work, the gaps between the walls and ceiling were eliminated, and the misaligned tile joints were leveled. Additionally, the doors that had been unable to close due to frame distortion from sinking were now able to close properly. 【Case Overview】 ■ Construction Area: 69m2 ■ Maximum Sinking Amount: 36mm ■ Maximum Void Amount: 190mm ■ Area: Niigata Prefecture ■ Construction Period: 1 day *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Example] Slab Foundation House: Settlement Repair Work (Kyoto Prefecture)

[Construction Example] Slab Foundation House: Settlement Repair Work (Kyoto Prefecture)

Corrected a maximum settlement of 46mm! A case where the distortion of the door frame caused by settlement was resolved.

We would like to introduce a case of "settlement correction work" carried out on a slab foundation house located in Kyoto Prefecture. This is a construction case of a house that had sunk due to ground subsidence, resulting in distorted door frames and gaps. We corrected a slab foundation house with a maximum settlement of 46mm in 2.5 days. 【Case Overview】 ■ Maximum Settlement: 46mm ■ Area: Kyoto Prefecture ■ Construction Period: 2.5 days *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Slab Foundation House: Settlement Correction Work Due to Earthquake (Ibaraki Prefecture)

[Construction Case] Slab Foundation House: Settlement Correction Work Due to Earthquake (Ibaraki Prefecture)

A maximum settlement of 500mm occurred! An example of correction using a combination of the up-con method and single pipe pile driving method.

We would like to introduce a case of "settlement correction work" carried out on a flat foundation house located in Ibaraki Prefecture. The house was newly built and experienced a maximum settlement of 500mm due to the Great East Japan Earthquake. Due to the significant tilt, we used a combination of the up-con method and the single pipe pile driving method for the correction. 【Case Overview】 ■ Maximum Settlement: 500mm ■ Area: Ibaraki Prefecture ■ Construction Period: 10 days *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case Study] Slab Foundation House: Settlement Correction Work Due to Liquefaction - Site Tour

[Construction Case Study] Slab Foundation House: Settlement Correction Work Due to Liquefaction - Site Tour

A case study of correcting liquefied ground due to the earthquake! A maximum settlement of about 60mm was corrected in a day and a half.

We would like to introduce a case of "settlement correction work" carried out on a slab foundation house located in Urayasu City, Chiba Prefecture. The house sank due to the impact of the Great East Japan Earthquake. The maximum settlement of approximately 60mm was corrected in 1.5 days. Additionally, there were many requests to visit our construction site, so with the kindness of our customers, we held an open house at this site. Many people were able to visit and observe the work. 【Case Overview】 ■ Maximum Settlement: Approximately 60mm ■ Area: Urayasu City, Chiba Prefecture ■ Construction Period: 1.5 days *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Slab Foundation House: Settlement Correction Work (Kawasaki City, Kanagawa Prefecture)

[Construction Case] Slab Foundation House: Settlement Correction Work (Kawasaki City, Kanagawa Prefecture)

Possible to carry out without moving! Introducing a case where a settlement of up to 107mm was quickly corrected.

We would like to introduce a case of "settlement repair work" carried out on a slab foundation house located in Kawasaki City, Kanagawa Prefecture. The homeowner, who purchased the house as a pre-built property, was deprived of a comfortable living environment due to the tilting of the house caused by ground subsidence. Several methods for settlement repair were considered, but the homeowner chose our company for the quick and non-disruptive repair without having to move. 【Case Overview】 ■ Maximum settlement amount: 107mm ■ Area: Kawasaki City, Kanagawa Prefecture ■ Construction period: 4 days *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Slab Foundation House: Settlement Correction Work (Tokyo)

[Construction Case] Slab Foundation House: Settlement Correction Work (Tokyo)

No need for large-scale demolition work! Here is an example of correcting a settlement of up to 95mm in just two days of construction.

We would like to introduce a case of "settlement repair work" carried out on a slab foundation house located in Hachioji City, Tokyo. Due to a maximum settlement of 95mm observed, polyurethane resin was injected under the slab foundation to implement the settlement correction. If you are troubled by the tilting of your slab foundation house caused by earthquakes, liquefaction, or ground subsidence, please feel free to contact us. 【Case Overview】 ■ Construction Area: Approximately 43m2 ■ Maximum Settlement Amount: 95mm ■ Area: Hachioji City, Tokyo ■ Construction Period: 2 days *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Slab Foundation House: Settlement Correction Work (Kanagawa Prefecture)

[Construction Case] Slab Foundation House: Settlement Correction Work (Kanagawa Prefecture)

Even in cases where the space between neighboring properties is very narrow, construction is possible! A maximum settlement of 66mm can be corrected in 3 days.

We would like to introduce a case of "settlement correction work" carried out at a certain house with a flat foundation in Kanagawa Prefecture. Due to a maximum settlement of 66mm observed in one corner of the living room, polyurethane resin was injected under the flat foundation to implement the settlement correction. This time, the work was performed in a house with very limited space between neighboring properties, but our company can carry out the work without the need for extensive construction, allowing for a short construction period without affecting the neighboring property. 【Case Overview】 ■ Construction Area: 40m2 ■ Maximum Settlement Amount: 66mm ■ Area: Certain residence in Kanagawa Prefecture ■ Construction Period: 3 days *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Example] Disaster Recovery Concrete Pavement Slab Settlement Correction Work

[Construction Example] Disaster Recovery Concrete Pavement Slab Settlement Correction Work

Our method, which raises the CO pavement using the foaming pressure of rigid urethane resin, has been adopted!

We would like to introduce a case of "Disaster Recovery Concrete Pavement Slab Settlement Correction Work" conducted on the Route 4 Bypass in Koriyama City, Fukushima Prefecture. This was a restoration project for the CO pavement slabs of the Route 4 Koriyama Bypass, which were damaged and settled due to the Great East Japan Earthquake. Our method was adopted, which raises the still sound CO pavement slabs using the foaming pressure of rigid polyurethane resin, while keeping traffic restrictions limited to lane reduction during construction without replacing them. 【Case Overview】 ■ Construction Area: Approximately 2,430 m² ■ Area: Route 4 Bypass in Koriyama ■ Construction Period: 24 days (March 2013) ■ Client: Tohoku Regional Development Bureau, Koriyama Route Office *For more details, please refer to the PDF document or feel free to contact us.

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[Construction Case] Middle School (Gymnasium Floor): Settlement Correction and Void Filling Work

[Construction Case] Middle School (Gymnasium Floor): Settlement Correction and Void Filling Work

Due to the impact of the earthquake, the gymnasium floor has significantly sunk in a bowl shape! A case where the Upcon method was used to solve the problem.

We would like to introduce a case of "settlement correction and void filling work" carried out on the gymnasium floor of a junior high school in Fukushima Prefecture. Due to the effects of an earthquake, the floor had significantly sunk in a bowl shape from the outer edges towards the center, causing issues with the use of the gymnasium. The area that had sunk by a maximum of 108mm was corrected to within the planned value of -15mm, and it was confirmed using a CCD camera that the polyurethane resin was filled without any gaps, completing the work. [Case Overview] ■ Construction Area: 1,036m2 ■ Construction Period: 8 days ■ Maximum Settlement: 108mm ■ Area: Fukushima Prefecture *For more detailed information about the case, please refer to the related links. For further details, please check the PDF materials or feel free to contact us.

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[Construction Example] Elementary School: Floor Slab Settlement Correction Work

[Construction Example] Elementary School: Floor Slab Settlement Correction Work

Utilizing spring break for quick subsidence correction! The cycle from construction to restoration is short.

Here is an example of "settlement correction" performed at an elementary school in Miyagi Prefecture. Due to floor settlement, gaps occurred between the classroom walls and ceiling, causing the classroom door to tilt and hindering the opening and closing of the lock. The overall floor level of the classroom and hallway was corrected from a maximum settlement of 69mm to within -18mm, and the gaps that had formed between the walls and ceiling before the work were also improved. 【Case Summary】 ■ Construction Area: 331m2 ■ Maximum Settlement: 69mm ■ Area: Tagajo City, Miyagi Prefecture / Elementary School ■ Construction Period: 4 days *For more detailed information about the case, please refer to the related link. For further details, please check the PDF document or feel free to contact us.

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TerraTech method for correcting tilts, subsidence, and level differences in floors and buildings: Case study collection giveaway.

TerraTech method for correcting tilts, subsidence, and level differences in floors and buildings: Case study collection giveaway.

We solve problems such as ground improvement and ground strengthening under buildings, mainly through settlement correction and void filling work using the Terra Tech method! We have surpassed 4,500 construction achievements.

●What is the Teratech Method… It is a patented method that involves injecting rigid polyurethane foam "Teratech resin" under concrete floors to fill voids and level sunken floors using its expansion force. Since it does not require breaking the floor, operations can continue without moving shelves or machinery! ▼Various issues we have resolved 【Tilt】 - Struggling with uneven factory floors. Want to make the concrete floor flat. - The warehouse floor has sunk in a bowl shape, causing vibrations during forklift operation. - The area where machines are installed has sunk, causing tilting of the machines. 【Subsidence】 - Found tilting in the foundation, making repairs impossible. - The concrete floor of the school gymnasium has sunk, except for the underground beams. - There are depressions on the warehouse floor, raising concerns about product storage and worker safety. 【Step Differences】 - There are step differences in the floor, causing product defects such as loads falling. - There is a step at the entrance of the refrigerated warehouse, making it difficult for forklifts to pass. 【Hollows and Gaps】 - The vibrations from the machines have worsened. I would like to check for any voids. - Cracks have appeared under the floor. We are struggling with corrosion of stored items and pest infestations. - Due to flooding, the soil under the concrete has been washed away, creating voids.

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Teratec Construction Report: Factory

Teratec Construction Report: Factory

Solving your factory problems! Introducing "TerraTech" case studies for subsidence correction and void filling.

We would like to introduce a case where problems caused by subsidence and voids in a factory were resolved by Teratech. [Problem] In a steel processing factory located in Ibaraki Prefecture, the concrete floor sank by about 3.4 cm. Although the factory had not been in operation for long, subsidence occurred, causing issues with the laser processing machine purchased for steel processing, which could no longer operate according to the specifications. For precision machines like laser processing machines, having a level floor is crucial for normal operation. [Reasons for Choosing Teratech] - Work can be carried out without stopping operations. - The work can be completed in a short time. [Feedback After Construction] "We were planning to readjust the level of the laser processing machine after this construction, but the floor correction was done so well beyond our expectations that the processing machine is now operating normally. We were very relieved that the planned budget of 1 million yen for the laser level adjustment was no longer necessary," we received words of gratitude. In addition, we also introduce resolution cases from packaging material manufacturing factories. *For more details, please refer to the external link page or feel free to contact us.

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Construction Report: Hospital

Construction Report: Hospital

Solving your concerns at the hospital! Introducing case studies of "Mainmark" for subsidence correction and void filling.

We would like to introduce a case that solved issues related to subsidence and cavities in a hospital. [Issues] A certain neurology clinic located in Sendai City was leaning, but as it is a comprehensive clinic equipped with both outpatient services and inpatient facilities, it operated almost 24 hours a day, 365 days a year. We received a request to carry out the construction without affecting the hospital's operations. [Feedback after Construction] Although it was a large-scale project, we successfully resolved the floor sagging and building subsidence in just two days of construction. The clinic resumed normal operations after the holiday, and the client was very satisfied. [Case Overview] ■ Comprehensive Clinic - Construction Details: Floor sagging and subsidence correction work - Construction Date: November 2013 - Location: Miyagi Prefecture - Construction Area: 900m² Other cases are also introduced on the following page: https://teretek.jp/plus/case/hospital *For more details, please refer to the external link page or feel free to contact us. Toll-Free Number: 0120-873-835

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  • Subsidence correction work

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[Construction Example] Warehouse and Factory in Sapporo City, Hokkaido

[Construction Example] Warehouse and Factory in Sapporo City, Hokkaido

We would like to introduce a case where we made corrections in a short time without interrupting the customer's operations!

This is a case study of floor sinking correction work and void filling work conducted at a warehouse and factory located in Sapporo City, Hokkaido. Due to floor sinking, the racks used for storing goods had become tilted. As a temporary measure, spacers were used under the racks to adjust their height and level them. The sinking correction work was carried out in a limited space, and within a few hours, the floor was made flat. Additionally, sinking correction work was performed in the office without interrupting the customer's operations. [Case Study] ■ Total construction area: Approximately 334 m² ■ Maximum sinking amount: 105 mm ■ Construction period: 3 days *For more details, please refer to the PDF document or feel free to contact us.

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  • Other contract services
  • Subsidence correction work

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[Construction Example] Large Shopping Center: Correction of Sunken Concrete Floor

[Construction Example] Large Shopping Center: Correction of Sunken Concrete Floor

Correction made during the night while operations were suspended! A case where two construction plant vehicles were used to expedite the construction schedule.

A large shopping center experienced significant floor subsidence due to weak ground. Gaps were observed in various places, such as between the floor and walls and between the walls and ceiling, caused by the subsidence. As a result, our company implemented repairs. The "Upcon Method," which can be executed during nighttime while the business is closed, was adopted for the repairs. To expedite the construction period, two construction plant vehicles were utilized, and the repairs were completed over 25 nights. 【Construction Overview】 ■ Construction Area: Approximately 3,240m2 (Backyard 405m2, Inside Store 2,835m2) ■ Maximum Subsidence: 94mm ■ Repairs completed over 25 nights ■ Two construction plant vehicles used to expedite the construction period For more details, please feel free to contact us via PDF download or inquiry form.

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  • Subsidence correction work

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[Construction Example] Shopping Center (Iwate Prefecture): Subfloor Settlement Correction Work

[Construction Example] Shopping Center (Iwate Prefecture): Subfloor Settlement Correction Work

Maximum settlement 71mm, maximum gap 190mm! Conducting polyurethane resin injection work while constantly checking the level!

A shopping center where widespread floor subsidence was observed due to ground subsidence. Due to the floor subsidence, gaps appeared between the floor and walls, causing various issues within the stores. As a result, our company implemented repairs. The "Upcon Method," which can be executed at night during the business closure, was adopted for the repairs. Additionally, since voids were also observed under the floor, filling work was carried out. 【Construction Overview】 ■ Construction Area: Approximately 540m² ■ Maximum Subsidence: 71mm ■ Maximum Void: 190mm ■ Construction completed in 2011, with repairs conducted over 7 consecutive nights. *For more details, please refer to the PDF document or feel free to contact us.

  • Other contract services
  • Subsidence correction work

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[Construction Example] Bag Manufacturing Factory: Floor Slab Settlement Correction Work and Underfloor Void Filling Work

[Construction Example] Bag Manufacturing Factory: Floor Slab Settlement Correction Work and Underfloor Void Filling Work

The machine's level cannot be secured, and spacers are being used. A malfunction has occurred in the machine, affecting product accuracy. This can be resolved with the up-con method.

This time, we will introduce a case study of a bag manufacturing factory in Miyagi Prefecture. Due to the impact of the Great East Japan Earthquake that occurred in March 2011, the floor sank, causing the machines to tilt and hindering production. The Upcon method was adopted because it allows for quick corrections without moving the machines. "We cannot secure the level of the machines and are using spacers." "Malfunctions have occurred in the machines, affecting product accuracy." We receive many inquiries about floor repairs like these at Upcon every day. The feature of the Upcon method is that it can correct floor subsidence in a short time, but another significant advantage is that it does not require the movement of machines or materials for construction. [Site Information] Miyagi Prefecture, Bag Manufacturing Factory Construction Area: Approximately 730 square meters Maximum Subsidence: 111mm Construction Period: 3 days For more details about the construction process, you can view it by downloading the PDF below.

  • Machinery and equipment installation/dismantling/relocation
  • Subsidence correction work

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[Construction Case] Metal Processing Factory: Floor Slab Settlement Correction Work and Deflection Correction Work

[Construction Case] Metal Processing Factory: Floor Slab Settlement Correction Work and Deflection Correction Work

A case where the floor of the corridor in the factory sagged and gaps appeared! Introducing an example of how it was fixed in one day without stopping operations.

We would like to introduce a case of "floor sinking correction work and deflection correction work" conducted at a metal processing factory in Fukuoka Prefecture. Due to ground subsidence over time, the floor of the corridor inside the factory sagged, creating gaps between the walls and the floor. To address the floor sagging and eliminate the gaps between the walls and the floor, subsidence correction work was carried out. After the work was completed, the areas that had sunk by up to 72mm, including the maximum subsidence location, were corrected to within management values, and the gaps that had formed between the walls and the floor due to subsidence were also eliminated. 【Case Overview】 ■ Construction Area: 114m2 ■ Construction Period: 1 day ■ Maximum Subsidence: 72mm ■ Area: Fukuoka Prefecture *For more details, please refer to the PDF document or feel free to contact us.

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  • Subsidence correction work

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[Construction Case] Packaging Material Factory: Floor Slab Settlement Correction Work

[Construction Case] Packaging Material Factory: Floor Slab Settlement Correction Work

To a factory that produces packaging materials such as cardboard! Introducing examples of subsidence correction work.

Here is an example of "floor sinking correction work" carried out at a packaging materials factory in South Korea. With ground subsidence, the concrete floor also sank, causing the stacked cardboard and other materials in the factory to tilt, which hindered operations. We performed polyurethane resin injection work, continuously checking the level while correcting the sinking. The correction was completed in 4 days with one construction plant vehicle. 【Case Overview】 ■ Construction Area: Approximately 360m2 ■ Location: Incheon, South Korea ■ Construction Period: 4 days *For more details, please refer to the PDF document or feel free to contact us.

  • Other contract services
  • Subsidence correction work

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