垂直荷载作用下黏性土的侧应力变化试验

Tests on Lateral Stress Variation of Cohesive soil under Vertical Load

通过对高压固结仪的改进,在不同垂直载荷条件下,利用高压固结仪基础上改造的侧压力仪,对黏性土进行了侧压力变化试验.试验结果表明:土固结过程中侧向应力随垂直压力的增大而增大,但变化并不总为常数;分析了连续和一次性加载,黏性土随时间变化情况.实验结果可为岩土工程施工与研究提供一定的参考.

This paper describes the clay side pressure test under different vertical load conditions using the lateral pressure meter modified from the high-pressure oedometer. The results show that during soil consolidation process, the lateral stress increases with the increase of vertical pressure. However, the change is not always constant. In addition, clay soil changes over time under continuous and one-time loading are also analyzed in the paper. The results provide a good reference for construction and geotechnical engineering studies.