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. Through the improvement of the high pressure consolidation machine, the lateral pressure change test of the clay soil was carried out under different vertical load conditions using the side pressure meter rebuilt on the basis of the high pressure consolidation machine.The results show that: The stress increases with the increase of vertical pressure, but the change is not always constant. The continuous and one-time loading of cohesive soil over time is analyzed. The experimental results can provide reference for the construction and research of geotechnical engineering .