不同桩距支盘桩群桩水平承载性状试验研究  

EXPERIMENTAL RESEARCH ON HORIZONTAL BEARING PERFORMANCE OF CLUSTERED BRANCH PILES WITH DIFFERENT SPACING

作　　者：卢成原[1] 颜建华[1] 

机构地区：[1]浙江工业大学建筑工程学院,杭州310014

出　　处：《建筑技术》2013年第4期373-377,共5页Architecture Technology

基　　金：浙江省自然科学基金资助项目(Y1080440)

摘　　要：为了研究群桩在水平荷载作用下的工作性状,在国内外研究成果的基础上,通过室内模型试验,研究了不同桩距对支盘桩群桩水平承载性状的影响,试验过程中测试支盘桩群桩的工作性状参数,包括承台顶水平位移、桩身应变(弯矩)以及桩周土压力。研究表明,水平荷载作用下不同桩距支盘桩两桩群桩的受力和变形特征不同。In order to determine the working performance of clustered piles under horizontal load, the influence of different pile spacing on horizontal bearing performance of clustered branch piles is researched through indoor model test on the basis of both domestic and foreign research results. During the test, working parameters of clustered branch piles are researched, including horizontal displacement of bearing platform top, strain （bending moment） of pile body and earth pressure around pile. The research results show that forces and deformation characteristics of two-pile clustered piles under horizontal load are different at different pile spacing.

关 键 词：支盘群桩 水平荷载 不同桩距 模型试验 

分 类 号：TU473.1[建筑科学—结构工程]