挤扩支盘桩与普通桩抗拔承载力对比试验研究  

Study on static load test comparision of squeezed branch and plate pile and straight pile

作　　者：李跃辉[1] 高笑娟[1] 

机构地区：[1]河南科技大学建筑工程学院,河南洛阳471003

出　　处：《河南理工大学学报（自然科学版）》2010年第3期391-395,共5页Journal of Henan Polytechnic University（Natural Science）

基　　金：河南省科技攻关计划项目(0324460009);河南科技大学博士基金资助项目(09001210)

摘　　要：在人防工程中,采用桩基础是常用的抗浮措施之一.挤扩支盘桩在抗拔方面具有优良的性能,近年来在地下工程中得到较为广泛的应用.根据某人防工程挤扩支盘桩和普通桩的单桩抗拔静载荷试验结果,以两种桩型的Q-s曲线和Q-Δs曲线为基础,分析了在特定土层中挤扩支盘桩的局限性,并根据两种桩抗拔承载力经验公式计算结果与实测结果的差距,提出了其承载力计算公式的修正建议.Pile foundation is one of the most popular measures used to resist the lift load in civil defense engineering. The squeezed branch and plate pile has very excellent properties in anti - pulling, and is widely used in undergroung engineering in recent years. The static load anti - pulling tests of squeezed branch and plate pile and straight pile are studied in this paper. Based on the test results of Q - s curves and Q - △s curves, the application limitation of the rotated plate pile in specific soil is studied. According to the calculated results and test results of the anti - pulling bearing capatity, some suggestions are proposed.

关 键 词：挤扩支盘桩 抗拔试验 抗拔承载力 

分 类 号：TU4[建筑科学—土工工程]