To effectively prevent ground breaking when a large deformation is applied, by improving the deformation performance of soil improved artificial ground having a high peak strength.
A soil improved artificial ground G is created between a panel wall body and ground cut surface behind it. The soil improved artificial ground G can be created by placing artificial ground material 2 such as slender pieces of elastic materials such as rubber or urethane, waste tires or waste plastics, crushed pieces or waste such as waste paper or the like, or increased deformed materials 1 comprising these compounds together with artificial ground materials 2 mixed with solidifying material such as cement or the like and water mixed with adequate proportions. Reinforcing material such as wire netting SN are embedded at predetermined heights in the soil improved artificial ground G.
SAGARA MASAO
KITAJIMA AKIRA
