振动挤密桩群体效应及其地基处理

Group Effect of Vobro compacting Stone Column and Its Application in Foundation Treatment

通过对几个典型振动挤密碎石桩处理地基的检验,发现振动挤密碎石桩的地基承载力群体效应远大于试桩区的局部效应。在地基处理设计时,应充分考虑挤密桩的群体效应,确定科学合理。

Through the test on the foundation which was treated by vibro-compacting stone column,of the residential building of Taiyuan Construction Bank and some others,it has been found that the group effect of the vibro-compacting stone column for the bearing capacity of foundation in group column area(construction site)is far larger than the local effect of the vibro-compacting stone column for the bearing capacity of foundation in test column area.This indicates that the group effect of vibro-compacting stone column should be fully considered at the time when design of the foundation treatment in order to determine a rational and economic scheme.