摘要
湿陷性黄土具有遇水发生湿陷、承载力大幅度降低的性质,这种性质直接影响到基础的承载力。为了研究支盘桩在湿陷性黄土地基中的承载性状,对湿陷性黄土中的3根支盘桩进行预浸水静载荷试验,结果表明,支盘桩荷载—沉降曲线为缓变型,具有较好的承载性能,荷载传递规律与在非湿陷性黄土地基中具有相似的性质,桩身各段承载力的发挥具有明显的顺序性,其结果为挤扩支盘桩在湿陷性黄土地基中的应用提供了依据。
For investigating the bearing features of the branch pile in collapsible loess, the presoaking static load tests for three branch piles in collapsible loess were conducted. The results show that the load - settlement curves of the piles belong gentle variation type with higher bearing capacity, the load transfer law is similar to that in non-collapsible loess, the bearing capacity exertion of each pile section has a apparent sequence. The results provide a base for application of squeezed branch pile in collapsible loess.
出处
《石油工程建设》
2006年第4期11-14,共4页
Petroleum Engineering Construction
基金
河南省科技攻关项目(991150103)
关键词
湿陷性黄土
地基
挤扩支盘桩
预浸水
静载荷试验
collapsible loess foundation
squeezed branch pile
presoaking
static load test
