Abstract
In September 1998, in the portion of regional highway Toga-Kawai-Sen Daikanba area, Toga-mura, Toyama in Japan, the highway shoulder failure was happened by typhoon. As a counter measurement method, the mechanically stabilized earth wall was considered for a reconstruction method because of the difficulty of carrying on heavy materials and equipments. The ground was stable but to keep the embedment length of geosynthetics, an excavation of the backside ground seemed to be necessary. To reinforce deficient tension resisting force of geosynthetics, the reinforcement method that is to connect geosynthetics and rock bolt installed to the ground was proposed. In this paper, first of all, the design method of the mechanically stabilized earth wall, which is considered about restraining effect of rock bolt, is described. Secondly, the connected structure of rock bolt and geosynthetics is described. Finally, the monitoring plan in the construction is described.
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