GROUND IMPROVEMENT BODY STRUCTURE

PROBLEM TO BE SOLVED: To provide a ground improvement structure capable of inexpensively strengthening the ground, even for a big area and a long-continuing dike.SOLUTION: A ground improvement body structure 10 comprises a slope face solidification wall 20 and a support solidification wall 20 which are constructed underground side by side in one direction by solidifying soil of the ground 1. These slope face solidification wall 20 and support solidification wall 30 are respectively inclined relative to the vertical direction, and are a substantially inverse V shape in a longitudinal sectional view by mutually joining mutual apex parts P. According to the present invention, since the paired solidification walls 20 and 30 are provided underground side by side in one direction, there is no need to provide a solidification wall in a lattice shape in a plane as a conventional structure, and the ground can be inexpensively strengthened for a long-continuing dike, an end part of a big area and an end part of large-scale banking. 【課題】広大なエリアや長く連続する堤防についても、低コストで地盤を強化できる地盤改良体構造を提供すること。【解決手段】地盤改良体構造１０は、地盤１の土が固化されて地中に一方向に並んで構築された法面固化壁２０および支持固化壁３０を備える。これら法面固化壁２０および支持固化壁３０は、それぞれ、鉛直方向に対して傾斜しており、頂部Ｐ同士が互いに結合されて縦断面視で略逆Ｖ字形状である。本発明によれば、一対の固化壁２０、３０を地中に一方向に並んで設けたので、従来のように平面において格子状に固化壁を設ける必要がなく、長く連続する堤防、広大なエリアの端部、大規模な盛土の端部などについて、低コストで地盤を強化できる。【選択図】図１