大直径钢管桩水平承载力现场试验研究  

Field Test Research of Horizontal Bearing Capacity of Large Diameter Steel Pipe Pile

作　　者：朱照清[1] 龚维明[1] 戴国亮[1] 

机构地区：[1]东南大学土木工程系,南京210096

出　　处：《建筑科学》2010年第9期36-39,32,共5页Building Science

基　　金：江苏省自然科学基金(BK2007114;BK2008315)

摘　　要：在东海大桥附近海域对海上风电场大直径钢管桩进行了水平承载力试验,采用单向单循环加载法,测试了直桩、正反斜桩的水平承载力及水平位移。测试发现正斜钢管桩承载力最大,直桩承载力最小。桩身浇灌的混凝土对提高承载力有很大帮助。测试结果可供类似工程参考。The in-situ tests of horizontal bearing capacity on large diameter steel pipe piles were conducted in the sea near Donghai bridge.Based on the field experiment with the lateral unidirectional and single cycle loading test method,the paper presents the horizontal displacement and bearing capacity on the steel pipe piles with negative,zero and positive inclination angles.And the horizontal bearing capacity of the steel pipe pile with positive inclination angle is the maximum of the three,while the steel pipe pile with zero inclination angles is the minimum.The concrete filled in the steel pipe pile has a large effect on the horizontal bearing capacity.And the tests results can be provided for similar engineering reference.

关 键 词：钢管桩 水平承载力 静载试验 斜桩 

分 类 号：TU473.13[建筑科学—结构工程] TU413[建筑科学—土工工程]