PHC桩穿越碎石桩复合地基可行性分析研究

Feasibility Analysis of PHC Piles Driven through Gravel Pile Composite Foundation

通过GRLWEAP软件对PHC桩穿越碎石桩复合地基进行可行性分析研究,同时在工程现场开展高应变打桩监测试验。研究发现PHC桩穿越碎石桩复合地基除了需要选择合理的打桩系统和打桩工艺外,还须采用引孔措施并确保孔的垂直度。

PHC pile driven through gravel pile composite foundation was analyzed by using GRLWEAP .The high strain monitoring test was also carried out .The research finds that it is feasible to drive the PHC pile through gravel pile com-posite foundation with reasonable selection of pile driving system and driving techniques .Besides ,it is necessary to set guide-holes and meanwhile ensure that the verticality of guide-hole meets the construction requirement .