一般社団法人　全国落石災害防止協会 List of Products and Services

This document introduces the construction results of stone masonry repairs using the Rock Adhesion DK Bond Method. The Rock Adhesion DK Bond Method is a technique that stabilizes unstable rock masses by bonding them to stable bedrock using an adhesive material (DK Bond Mortar). We provide information on "Stone masonry (stone wall) repairs and reinforcements using the Rock Adhesion DK Bond Method," "Construction procedures," and various construction results. [Contents] ■ Stone masonry (stone wall) repairs and reinforcements using the Rock Adhesion DK Bond Method ■ Construction procedures for stone masonry (stone wall) repairs ■ Construction results of stone masonry (stone wall) repairs *For more details, please refer to the PDF document or feel free to contact us.

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The "Rock Adhesion DK Bond Method" is a rockfall prevention technique that uses adhesive material (DK Bond Mortar) to bond unstable rock masses to solid bedrock, thereby achieving stability through integration. Since the development of this method, it has been implemented on a national scale for over 40 years, with more than 3,900 successful projects. It can be applied to steep slopes, high locations, and very unstable boulders, and it possesses seismic performance that can withstand massive earthquakes. We are currently offering a document summarizing our construction achievements. 【Features】 ■ Effective for large boulders and high rock locations ■ Easy to combine with other methods ■ Effective for preserving natural landscapes *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce examples of the rockfall prevention construction methods used by Daini Kensetsu Co., Ltd. Our rockfall prevention methods can be adapted to "landscape conservation areas." For example, this includes scenic spots and natural parks. Without making significant alterations to the natural environment, we utilize surrounding stone fragments (or materials) to ensure that the construction site resembles the natural surroundings. Additionally, we can perform landscape restoration work through coloring and other methods. Please feel free to consult us when needed. 【Features】 ■ Construction methods that do not significantly alter the natural environment ■ Utilization of surrounding stone fragments (or materials) ■ The construction site can achieve a natural appearance ■ Landscape restoration work through coloring and other methods is also possible *For more details, please refer to the PDF materials or feel free to contact us.

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We would like to introduce examples of applications for the rockfall prevention methods of Daini Kensetsu Co., Ltd. Our rockfall prevention methods can be adapted to "steep slopes and high places." For instance, they can be used in locations where machinery cannot be utilized. The construction work is primarily manual labor and does not require large-scale temporary structures or construction equipment. Please feel free to consult us when needed. 【Features】 ■ Primarily manual labor ■ Does not require large-scale temporary structures or construction equipment *For more details, please refer to the PDF materials or feel free to contact us.

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We would like to introduce examples of applications for the rockfall prevention construction method by Daini Kensetsu Co., Ltd. Our rockfall prevention method is adaptable even to "very unstable large boulders." For example, this includes large boulders on ridges. During construction, we ensure safety measures by performing temporary adhesion without applying vibrations that pose a high risk of rockfall. Additionally, it is not affected by the size or shape of the target boulder. 【Features】 ■ A method that does not apply vibrations that pose a high risk of rockfall ■ Ensures safety during construction through temporary adhesion ■ Not affected by the size or shape of the target boulder *For more details, please refer to the PDF materials or feel free to contact us.

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We would like to introduce examples of applications for the rockfall prevention construction method by Daini Kensetsu Co., Ltd. Our rockfall prevention method is also applicable for "emergency measures and temporary solutions." For instance, it can be used in urgent situations where "time is limited." There is no need to acquire land for construction, and the temporary structures and construction equipment are minimal, allowing for a short construction period. Additionally, our specialized technicians respond quickly from investigation and design to construction. 【Features】 ■ No need to acquire land during construction ■ Minimal temporary structures and construction equipment, allowing for short construction periods ■ Specialized technicians respond quickly from investigation and design to construction *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce examples of applications for the rockfall prevention construction method by Daini Kensetsu Co., Ltd. Our rockfall prevention construction method can be adapted for "preparatory work for disaster recovery," among other uses. For instance, it can be used in situations where immediate effectiveness is desired. It requires no effort for preparatory work or temporary structures, allowing for immediate commencement of construction. DK Bond Mortar can achieve the specified adhesion strength within 7 days of material age. 【Features】 ■ No effort required for preparatory work or temporary structures ■ Immediate commencement of construction possible ■ DK Bond Mortar can achieve the specified adhesion strength within 7 days of material age *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce examples of applications for the rockfall prevention method by Daini Kensetsu Co., Ltd. Our rockfall prevention method can be adapted for use in conjunction with other rockfall countermeasures. For example, it can be applied simultaneously for measures against large boulders and small boulders. Please feel free to consult us when needed. 【Features】 ■ Applicable when measures against large boulders and small boulders are implemented simultaneously ■ Can be used in conjunction with rockfall prevention works and protective works *For more details, please refer to the PDF materials or feel free to contact us.

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We would like to introduce the "Seismic Performance Achievements" of Daini Kensetsu Co., Ltd. Our rockfall prevention method is designed to withstand massive earthquakes and has proven effective in various locations across Japan. It showed no deformation even during the Great Hanshin-Awaji Earthquake, which registered a magnitude of 7 in 1995, and has successfully endured numerous earthquakes since, including the 2000 Tottori Prefecture Western Earthquake and the 2007 Noto Peninsula Earthquake. If you have concerns regarding rockfall prevention methods, please feel free to consult with us. 【Seismic Achievements】 ■ Great Hanshin-Awaji Earthquake (Magnitude 7) ■ Tottori Prefecture Western Earthquake (Magnitude 6+) ■ Geiyo Earthquake (Magnitude 6-) ■ Noto Peninsula Earthquake (Magnitude 6+) ■ Great East Japan Earthquake (Magnitude 6-) ■ Kumamoto Earthquake (Magnitude 7) *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce examples of "rockfall prevention construction methods" by Daini Kensetsu Co., Ltd. Our rockfall prevention methods are applied in various locations. The DK Bond method, which does not require formwork, is effective for securing high places and large boulders, as well as areas with a high risk of collapse. As a result, we have a track record of construction in steep slopes across Japan, as well as in deteriorated embankments, stone walls, artificial structures, and cultural heritage repairs. If you are facing issues with rockfall prevention methods, please feel free to consult us. 【Examples of Construction】 ■ Securing large boulders ■ Securing collapsed rocks ■ Fixing slope cracks ■ Repairing deteriorated embankments and artificial structures ■ Repairing stone walls and cultural heritage *For more details, please refer to the PDF materials or feel free to contact us.

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