水泥土桩复合地基沉降变形的试验研究

通过承载力试验研究可以看出,带承台的单桩复合地基要比不带承台的单桩复合地基的性能更优。仅从其承载力限值来看,群桩复合地基的承载力较单桩复合地基的承载力有明显的提高。对于群桩复合地基,当承载力较小时,桩的荷载主要由其上部的摩擦力来承担,桩与桩之间的应力叠加明显,桩的作用没有完全发挥;而随着荷载的增加,桩的摩阻力向下发展,应力叠加程度减弱,桩的作用得到进一步发挥。

Experimental Study of Soil-cement Pile Composite Foundation Settling Deformation

Based on the experimental study of bearing capacity,it can be seen that the single pile with caps composite foundation is better than pile without cap.As for the upper limit of its capacity,the bearing capacity of the group pile composite foundation has increased significantly compared with that of single pile composite foundation.As for the group of pile composite foundation,when the bearing capacity is small,the upper friction bears the pile load.At the same time the stress between piles superposes obviou...