路肩桩板墙受力特性的室内模型试验研究  

The Indoor Model Test Study on Mechanical Characteristics of Embankment Pile Wall

作　　者：张钦鹏[1,2] 梁庆国[1,2] 刘璐[1,2] 徐善常 ZHANG Qinpeng LIANG Qingguo LIU Lu XU Shanchang(Key Laboratory of Road ＆ Bridge and Underground Engineering of Gansu Province, Lanzhou 730070, China School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China)

机构地区：[1]甘肃省道路桥梁与地下工程重点实验室,甘肃兰州730070 [2]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《防灾减灾工程学报》2016年第4期528-536,共9页Journal of Disaster Prevention and Mitigation Engineering

基　　金：国家自然科学基金项目(41262010;41562013);甘肃省基础研究创新群体项目(145RJIA332);长江学者和创新团队发展计划项目(IRT1139)资助

摘　　要：在高陡峡谷区,路肩桩板墙作为一种普遍使用的支挡结构,具有施工方便、造价较低、外形美观的特点。但由于板挡墙结构的复杂性以及高陡边坡的支档难度,该结构的受力特性尚不完全明确。以相似比1∶25建立了路基边坡模型,通过室内模型试验,模拟并研究了不同工况下桩板墙的受力状态和位移大小以及土体压力随试验步骤的变化,根据试验结果对高陡边坡的变形与破坏机理进行了分析。In the high and steep canyon area,the embankment pile sheet retaining wall as a widespread use of retaining structure has convenient construction,low cost and beautiful appearance.But because of the complexity of retaining wall structure and high steep slope retaining difficulty,the stress characteristics of the structure is still not completely clear.According to the similarity ratio of 1∶25we established a simple model.Through indoor model test,we simulated and studied under different conditions the sheet pile wall stress state and displacement values.We studied the stress changes with test procedure.According to the test results the high and steep slope deformation and failure mechanism were analyzed.

关 键 词：路基帮宽 桩板墙 稳定性分析 模型实验 

分 类 号：U238[交通运输工程—道路与铁道工程]