西堠门大桥深长嵌岩桩承载特性的试验研究  

Test and Study on Bearing Behavior of Deep-Length Socketed Pile of Xihoumen Bridge

作　　者：王红伟[1] 戴国亮[1] 龚维明[1] 

机构地区：[1]东南大学混凝土及预应力混凝土结构教育部重点实验室,南京市210096

出　　处：《公路》2009年第12期11-15,共5页Highway

基　　金：国家科技支撑计划;项目编号2008BAG07B01

摘　　要：结合西堠门大桥直径2.8 m嵌岩桩静载试验和应力测试结果,分析了大直径深长嵌岩桩侧摩阻力和桩端阻力的发挥特性,结果表明,在桩侧、桩端岩石强度较高的条件下,侧摩阻力和端阻力在桩岩相对位移和桩端位移很小变位下就能够发挥出较高的水平。On the basis of the results of static load tests and stress tests of diameter 2.8 m socketed pile of Xihoumen Bridge,the exertion of side resistance and base resistance of large diameter deep-length socketed pile is analyzed.The results show that the side resistance and base resistance can exert a higher level under a small deformation of pile-rock relative displacement and pile base displacement when the rock strength in side and base of pile is higher.

关 键 词：桩基 深长嵌岩桩 桩侧摩阻力 桩端阻力 

分 类 号：TU473.11[建筑科学—结构工程]