Development and application of method for controlling quality of reinforced soil wall construction using the “Reinforced Soil Wall Checklist”

Abstract

It has been about half a century since the first reinforced soil wall was constructed in Japan, and it is now widely used in the general public. However, with the increase in the number of construction results, deformation of the wall panels has been reported in some of the reinforced soil walls constructed in Hokkaido. Therefore, we have organized the actual situation of reinforced soil walls constructed by the Hokkaido Development Bureau, and established a forum (hereinafter referred to as “Reinforced Soil Wall WAKATTEN-KAI”) where people involved with reinforced soil walls in Hokkaido (client, design consultants, contractors, reinforced soil wall manufacturers, Kitami Institute of Technology, and the Civil Engineering Research Institute for Cold Region) can share their awareness of each other's work. As a result of discussions at the Reinforced Soil Wall Checklist Meeting, the effectiveness of the reinforced soil wall checklist was confirmed in the work and construction of reinforced soil walls ordered by the Hokkaido Development Bureau (hereafter referred to as the Development Bureau) based on the recognition that the checklist is effective in ensuring quality, in which items that should be shared by both contractors and receivers are mutually verified. This paper describes the background of the reinforced soil wall checklist as a tool for building cooperative relationships and encouraging dialogue between the client and the contractor.