Unit Network Landslide Prevention Case Study No. 1 | Restoration Measures for Windfall and Slope Collapse
This is an example of preventing slope collapse in advance with "Unit Net," which balances slope stabilization and the conservation of the natural environment.
Mikune District, Sayo Town, Sayo County, Hyogo Prefecture ◆ Disaster from Typhoon No. 23 in 2004 In response to the damage caused by Typhoon No. 23 in 2004, the "Unit Net" was adopted at planned locations for the restoration of windfall trees and slope collapse areas, and construction was sequentially ordered based on the plan. ◆ Disaster from Typhoon No. 9 in 2009 While restoration work was progressing sequentially, we were hit by damage from Typhoon No. 9 in 2009. Slope collapses also occurred in surrounding areas, centered around the restoration plan area. There were still unaddressed areas within the restoration plan where slope collapses occurred, but in the adjacent area where the "Unit Net" had been installed, collapses were prevented. There were houses below the slope, but thanks to the installation of the "Unit Net," safety was successfully maintained. ● For more details, please download the materials.
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basic information
■Overview of the Unit Net Method The "Unit Net Method" is a ground reinforcement technique that stabilizes slopes where trees and other vegetation grow, without cutting down those trees, while preserving the landscape and natural environment. It consists of a unit net that covers the entire slope, reinforcement materials (rock bolts) installed at the intersections, and pressure plates at the heads of the reinforcement materials. NETIS Registration Number KK-010068-V (Registration ended in April 2017) ● For more details, please contact us or download the catalog.
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Applications/Examples of results
We have approximately 1,000 construction projects nationwide, covering an area of about 710,000 m². *We have construction achievements nationwide in areas such as steep slope measures, forest conservation projects, erosion control projects, and road slope projects. ●For more details, please contact us or download the catalog.
Detailed information
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Schematic Diagram 1 of the "Unit Net Construction Method"
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Schematic diagram 2 of the "Unit Net Construction Method"
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Company information
Daika Corporation has contributed to the development of Japan's social infrastructure through the sale of industrial explosives since its establishment in 1931. Currently, the range of products handled by Daika includes industrial explosives, construction materials, slope disaster prevention technology, and synthetic resin products, among others. All of these are connected by keywords such as "reduction of environmental impact," "economic efficiency," "safety and security," and "maintenance and management." For example, in slope disaster prevention technology, while improving safety is a fundamental goal, we are also developing construction methods that have low environmental impact and are economically viable. Additionally, synthetic resin products possess the advantages of reducing environmental impact through recycling and excellent economic efficiency. In order to leave a slightly better living environment for the next generation, we aim to enhance our product offerings that seek harmony between the environment and society, contributing to the realization of a livable society now and in the future.
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