对拉锚索支护结构室内模型试验研究  

Indoor Model Test of Pulling Anchor Supporting Structure

作　　者：吴曙光[1,2] 彭朋[2,3] 韩培宇[1,2] 郑华敬 WU Shuguang PENG Peng HAN Peiyu ZHENG Huajing(Key Laboratory of New Technology for Construction of Cities in Mountain Area of Ministry of Education, Chongqing University Chongqing 400045, P. R. China School of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China Changjiang Institute of Survey, Planning, Design and Research, Wuhan 430010, Hubei, P. R. China)

机构地区：[1]山地城镇建设与新技术教育部重点实验室(重庆大学),重庆400045 [2]重庆大学土木工程学院,重庆400045 [3]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《重庆交通大学学报（自然科学版）》2016年第6期24-29,共6页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：中央高校基本科研业务费项目(106112015CDJXY200006);国家“十二五”科技支撑计划项目(2012BAJ22806-04)

摘　　要：针对目前关于对拉锚索支护结构理论和试验研究较少的情况,自行设计和完成了考虑施工过程的对拉锚索支护结构室内模型试验。研究表明:对拉锚索支护结构支护桩内力及桩顶位移的最大值均出现在施工过程中,而非施工完成状态;不同的开挖支护时机对桩身内力及土压力的分布存在较大影响;总结出了对拉锚索支护结构桩身内力、土压力以及挡板土压力的分布。In view of little theoretical and experimental research on pulling anchor supporting structure currently,the indoor model test of the pulling anchor supporting structure was designed and completed independently. Analysis of the test results reveals that the maximum values of internal force of pile and the displacement at the top of the pile both appear in the construction process,rather than the completion of the construction. Different time of excavating and supporting has great influence on the internal force of pile and the distribution of soil pressure. The distribution characteristics of the internal force,the soil pressure and the soil pressure of the baffle in the pulling anchor supporting structure are concluded.

关 键 词：岩土工程 对拉锚索 支护桩 桩身内力 土压力 相邻深基坑 

分 类 号：U453.4[建筑科学—桥梁与隧道工程] TU43[交通运输工程—道路与铁道工程]