| 压力分散型挡土墙受力特性模型试验研究 |
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| 引用本文： | 吴建清,张崇高,宋修广,张宏博.压力分散型挡土墙受力特性模型试验研究[J].工业建筑,2014(9):83-87. |
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| 作者姓名： | 吴建清 张崇高 宋修广 张宏博 |
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| 作者单位： | 1. 山东大学土建与水利学院，济南 250061; 山东省路基安全工程技术研究中心，济南 250061
2. 青岛市公路管理局即墨分局,山东青岛,266200 |
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| 基金项目： | 国家自然科学基金项目(51108252，51208284)；山东省科技发展计划项目(2013GSF11603)。 |
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| 摘 要： | 为揭示压力分散型挡土墙受力特性,进行了室内模型试验,通过埋设土压力盒、百分表和应变片等监测仪器,测得高填土荷载下压力分散型挡土墙位移、基底土压力、侧向土压力、锚杆受力的变化规律。试验结果表明:随着填土增高,挡土墙有外倾趋势,使得基底外侧压力较内侧增大;锚杆的空间遮蔽效应显著;侧向土压力呈反S型曲线分布;锚杆端部存在应力集中现象;锚杆中间位置剪应力最大。
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| 关 键 词： | 路基基础 压力分散 挡土墙 模型试验 |
A MODEL TEST STUDY OF MECHANICAL BEHAVIOR FOR THE DISPERSED PRESSURE RETAINING WALL |
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| Wu Jianqing,Zhang Chonggao,Song Xiuguang,Zhang Hongbo.A MODEL TEST STUDY OF MECHANICAL BEHAVIOR FOR THE DISPERSED PRESSURE RETAINING WALL[J].Industrial Construction,2014(9):83-87. |
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| Authors: | Wu Jianqing Zhang Chonggao Song Xiuguang Zhang Hongbo |
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| Abstract: | In order to study the mechanical behavior of the dispersed pressure retaining wall,the indoor model test was conducted. Earth pressure cells,dial indicators,and strain gages min were buried at different heights of the retaining wall. It was studied the change law of the retaining wall's displacement,base earth pressure,lateral pressure and the anchor force under high fill loads. The results of the model experiment showed that the retaining wall was of tilting tendency under high load. The outside pressure of basement was bigger than inner side. The shadowing effect of anchor was obvious. The lateral earth pressure formed the shape of reverse S-type. The end of anchor had concentration of stress. Shear stress in the middle of anchor was biggest. |
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| Keywords: | subgrade foundation dispersed pressure retaining wall model test |
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