土工格栅加筋土柔性桥台结构性能的试验研究

中国计划生育学杂志社

2013, Vol. 47

Issue (6): 767-772

临床研究

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土工格栅加筋土柔性桥台结构性能的试验研究

肖成志^{1, 2}, 刘贺¹, 王荣霞^{1, 2}, 陈培¹

1. 河北工业大学土木工程学院，天津 300401; 2. 河北工业大学河北省土木工程技术研究中心，天津 300132

Experimental study on performance of GRS bridge abutment with flexible face

XIAO Cheng-zhi^{1, 2}, LIU He¹, WANG Rong-xia^{1, 2}, CHEN Pei¹

1. School of Civil Engineering, Hebei University of Technology, Tianjin 300401, China; 2. Technology and Research Center of Civil Engineering, Hebei Province, Tianjin 300132, China

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摘要基于静载作用下加筋土柔性桥台结构工作性能的试验研究，综合对比分析桥台基础距下部挡墙面板的距离D对柔性桥台结构极限承载力、下部挡墙变形特点、筋材应变和土压力的影响。试验结果表明：当下部加筋挡墙中筋材长度为整体桥台高度时，桥台结构极限承载力随偏移距离D增加呈现先增加后减小趋势，且在D为0.4H_L(H_L为下部挡墙高度)时达到最大值；加筋柔性桥台整体结构加载至破坏前一级载荷时，桥台基础沉降与台背加筋土顶部沉降均呈近似线性变化，且D/H_L为0.4时二者差异沉降最小；挡墙面板顶部的水平位移明显大于中、底部，且挡墙水平位移与挡墙高度比值均小于1%；挡墙中各层筋材应变最大值随D增加而逐渐向远离面板方向发展，且D为0.4H_L时台背加筋土和下部挡墙加筋中筋材的应变相差不大，整体柔性桥台结构工作性能达到最佳状态。

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	肖成志
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	陈培

关键词 ：加筋柔性桥台, 偏移距离, 极限承载力, 土工格栅

收稿日期: 2012-06-05

ZTFLH:

TU411

基金资助:基金项目：国家自然科学基金项目（50909032）

作者简介: 作者简介：肖成志(1976- )，男，湖北监利人，博士，副教授，硕士生导师，主要从事土工合成材料及其加筋土原理方面、地基处理及隧道工程等方面的研究与教学工作。E-mail: chengzhixiao@hotmail.com。

引用本文:

肖成志, 刘贺, 王荣霞, 陈培. 土工格栅加筋土柔性桥台结构性能的试验研究[J]. 中国计划生育学杂志社, 2013, 47(6): 767-772.
XIAO Cheng-zhi, LIU He, WANG Rong-xia, CHEN Pei. Experimental study on performance of GRS bridge abutment with flexible face. , 2013, 47(6): 767-772.

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http://192.168.0.151:8080/Jwk_cyfdj/CN/ 或 http://192.168.0.151:8080/Jwk_cyfdj/CN/Y2013/V47/I6/767

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