Field Tests, Modification, and Application of Deep Soil Mixing Method in Soft Clay
Field Tests, Modification, and Application of Deep Soil Mixing Method in Soft Clay
复制标题
软粘土深层搅拌法的现场试验、改进及应用
DOI：
10.1061/(asce)gt.1943-5606.0000746
复制
发表时间：
2013-01-01
影响因子：
3.9
通讯作者：
Wang, Jian-Hua
中科院分区：
文献类型：
--
作者：
Chen, Jin-Jian;Zhang, Lianyang;Wang, Jian-Hua
AbstractThe installation of soil-cement columns causes excess pore-water pressures and movements of surrounding ground, which affect adjacent underground structures. In Shanghai, a triple-shaft deep soil mixing (DSM) method has been proposed and is widely used to minimize the installation effects. However, when this DSM method was used to install soil-cement columns close to a Metro tunnel, unacceptable soil displacement was caused, even at the very beginning. Therefore, it was decided to conduct field tests to investigate the effect of major factors affecting DSM installations and then modify the construction parameters so that the soil displacement caused by DSM construction would not exceed the allowable limit. The field tests consisted of two phases: Phase I tests of single DSM column installations close to the Metro tunnel to modify the construction parameters, and Phase II tests of continuous multiple DSM column installations far from the Metro tunnel to validate the modified construction parameters...
