斜坡桩基础桩侧土体裂缝扩展试验研究

Research of test of pile lateral soil crack extension for laterally loaded pile

基于斜坡地基桩基础现场试验,对处于不同坡度斜坡的桩基础在水平荷载作用下桩侧土体的开裂特性进行了系统的研究,重点从桩侧土体变形角度来揭示水平荷载下桩土相互作用规律,进一步揭示桩土相互作用过程中桩侧土体的发展变化过程,以便采取相应的工程措施确保桩土体系长期安全稳定,试验结果表明:水平荷载作用下桩侧土体变形破坏是一个循序渐进的过程,裂缝的宽度、长度和深度均随着荷载的增大而增加。

Field test of pile embed the slope were applied to investigate the cracking characteristics of pile side soil under horizontal load in different grade slope. Mainly from the aspects of deformation of pile lateral soil to reveal pile soil interaction law under the horizontal load,and to further reveal pile side soil development change process in the interaction of pile and soil. In order to take corresponding engineering measures to ensure long-term security and stability of the pile soil system. The test results show that pile side soil deformation and failure is a gradual process under horizontal load. Width,length and depth of soil crack increases with the increase of load.