逆作法桩复合基础水平承载性能试验研究  

Experimental Study on Horizontal Bearing Performance of Composite Foundation for Piles Constructed with Reverse Method

作　　者：夏爱军[1] 龚维明[1] 郑龙[1] 杨乐[1] 

机构地区：[1]东南大学土木工程学院,南京210096

出　　处：《路基工程》2013年第2期26-28,共3页Subgrade Engineering

基　　金：西部交通建设科技项目(2009318494041)

摘　　要：为研究砂性土中逆作法桩复合基础在水平静荷载下的承载特性,进行了模型桩系列试验,包括单桩、承台单桩、逆作法单桩以及高承台8桩和逆作法8桩。通过测试,比较分析它们在水平荷载下的位移变化,得出桩在水平荷载下承载特性,结果表明:逆作法桩基比普通桩基承载力高。In order to study the bearing characteristics of composite foundation for piles constructed with reverse method in sandy soil under horizontal static load, a series model-pile tests are carried out, involving single pile, single pile with cap, single pile constructed with reverse method, 8 piles with elevated cap and 8 piles constructed with reverse method. Through these tests, the displacement changes of these piles under horizontal load are compared and analyzed so as to get the bearing characteristics thereof. The result shows that the pile foundation work constructed with reverse method has higher bearing capacity than that of ordinary ones.

关 键 词：桩 逆作 承台 水平荷载 位移 弯矩 土反力 

分 类 号：TU473.1[建筑科学—结构工程]