Abstract
The method of construction “expanded nailing method” which reinforces a natural ground with pouring in mortar into the jacket inserted in the natural ground was developed. The nailing is mainly used for reinforcement of the natural ground in a narrow place. However, in the case of the weak viscous cohesive soil like the Kanto loam layer, by the conventional method of constuction, skin frictional resistance becomes small and sufficient pull-out resistance is not acquired.
Then, the method of construction which develops the large reinforcement material of skin frictional resistance by carrying out high-pressure pouring of the mortar in the pipe-like textiles inserted in the foundation was devised.
The result of the model foundation experiment for searching for the form optimal as reinforcement material is described. Moreover, the influence of consolidation the foundation is also considered.
