车辆荷载作用下加筋土挡墙的静动响应现场试验

为研究车辆荷载作用下加筋土挡墙的静动力响应规律,以330国道K139+100~K139+400路段的模块式加筋土挡墙为原型,通过埋设动静土压力盒、柔性位移计以及加速度计等元器件,测试了车辆荷载作用下加筋土挡墙的筋材拉应变、面墙后侧向土压力、加筋体后侧向土压力和挡墙的侧向变形等。结果表明:车辆荷载作用时,挡土墙面墙上部的响应加速度远大于下层;当车辆荷载作用在加筋体上时,车辆行车距离对加筋体内产生的动土压力影响不大,当车辆荷载作用在加筋体后时,车辆行车距离对加筋体内的动土压力大小及分布模式有很大影响。无论是在车辆静载作用下还是在车辆动载作用下,加筋体后侧向土压力远大于面墙后的侧向土压力。...

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Volume: 44
Main Author: 刘泽 史克友 黄天琪 蒋梅东 黄凯峰
Format: Journal Article
Language: Chinese
Place of publication: 2017
published in: 水文地质工程地质 Vol. 44; no. 4; pp. 91 - 97
Data of publication: 2017
ISSN: 1000-3665
Alternate Title: Field test of static and dynamic response of reinforced earth retaining wall under vehicle load
Bibliography: 11-2202/P
reinforced soil retaining wall; vehicle load; field test; tensile strain; lateral earth pressure
LIU Ze1,2, SHI Keyou1,2, HUANG Tianqi1 ,JIANG Meidong1 ,HUANG Kaifeng1 (1. School of civil engineer, Hunan University of Science and Technology, Xiangtan,Hunan 411201, China; 2. Hunan Province Key Laboratory of Geotechnical Engineering Stability Control and Health Monitoring, Hunan University of Science and Technology, Xiangtan,Hunan 411201, China)
In order to examine the static and dynamic response of reinforced earth retaining wall under vehicle load, this paper takes the modular reinforced earth retaining wall in the K139 + 100~ K139 + 400 section of the 330 national highway as the prototype. By burying the soil pressure box, flexible displacement meter, accelerometer and other components, the reinforcement tensile strain, wall lateral earth pressure, stiffened body lateral earth pressure for retaining wall and lateral deformation are tested. The test results show that when the vehicle dynamic load is ap
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