[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.
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basic information
■ What is the Upcon Method? The Upcon method involves drilling small holes with a diameter of 16mm into existing concrete floors that have experienced subsidence, unevenness, tilting, or gaps. While continuously monitoring the level in millimeter increments, polyurethane resin is injected. The resin injected beneath the floor expands rapidly under pressure, compacting and strengthening the ground, improving bearing capacity, and lifting the concrete to correct it. The final strength of the resin is achieved in about 60 minutes. Additionally, if gaps have formed beneath the floor, they can be filled using the same method. *The polyurethane can lift the floor with a foaming pressure of up to 10 tons per square meter, eliminating the need to move heavy equipment or loads. ■ Features of the Upcon Method 1. Short construction period: The construction time is one-tenth that of conventional methods. 2. No interruption of operations: There is no need to move machinery or loads. 3. Comprehensive high technical capability: Responsible construction by 100% in-house staff. 4. Compact construction system: Quick restoration to the original condition is possible. 5. Reduced risk of re-subsidence compared to conventional methods. We provide total support, including on-site surveys, repair planning, and construction, with our in-house staff taking full responsibility. Our specially trained and experienced staff will propose the optimal repair plan tailored to your site.
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Applications/Examples of results
■Ground floor sinking correction work ■Ground floor void filling work
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Company information
We carry out construction work to correct the sinking, tilting, steps, and gaps in concrete floors caused by uneven ground subsidence in buildings such as factories, warehouses, stores, and general residences, using a completely non-fluorinated urethane resin and our unique "Upcon Method" with small machinery. Additionally, we are engaged in public works that utilize technologies developed through various research and development projects to restore the functionality of aging social infrastructure, such as roads, airports, ports, and agricultural waterways. ■ Features of the Upcon Method 1. Short construction period: The construction time is 1/10 of conventional methods. 2. No interruption of operations: No need to move machinery or cargo. 3. Comprehensive high technical capability: 100% in-house employees. 4. Compact construction system: Quick restoration of the current state is possible. 5. Reduced risk of re-subsidence: Lower risk of re-subsidence compared to conventional methods. We provide total support from on-site surveys nationwide to repair planning and construction, all handled responsibly by our in-house staff. Our specialized and experienced staff will propose the optimal repair plan tailored to your site. Upcon Co., Ltd. was newly listed on the Nagoya Stock Exchange Next Market on December 26, 2022.