摘要
对金城路东伸下穿铁路立交桥利用ANSYS有限元软件对旋喷桩加固地基后顶进箱涵的力学特性进行分析,计算出理论地基承载力,对50个检测孔数进行了试验,无侧限强度做了7 d,14 d,28 d三种龄期试验,试验成果表明,采用旋喷桩加固能大大提高地基承载力。
A finite element analysis of mechanical performance is made by ANSYS for underpass grade separation of east extension from Jincheng road when jacking of box culverts through railroad bed which has been reinforced by chemical churning piles. Theoretical foundation bearing capacity is worked out, 50 check holes have been tested and three kinds of age（7 d, 14 d,28 d）tests for the unconfined strength conducted. The test results show that application of chemical churning piles for reinforcement could greatly increase the roadbed bearing capacity.
出处
《山西建筑》
2008年第36期327-328,共2页
Shanxi Architecture
关键词
旋喷桩
顶进施工
地基加固
有限元
chemical churning pile, jacking construction, roadbed reinforcement, finite element
