When natural soil,higher bearing capacity and soft substratum in influence depth,cannot satisfy the request of bearing capacity and deformation,CFG piles are adopted to strengthen soft substratum.

• 天然地基土承载力较高,但基础影响深度范围内存在软弱下卧层,不能满足设计要求的承载力和变形时,采用CFG桩法对软弱下卧层进行加固处理。