| 软土地基桥台位移病害分析及防治措施 |
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| 引用本文： | 孙文彬.软土地基桥台位移病害分析及防治措施[J].化工矿产地质,2006,28(3):189-192,148. |
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| 作者姓名： | 孙文彬 |
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| 作者单位： | 淮阴工学院土木工程系,江苏,淮安,223001 |
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| 摘 要： | 软土地基桥台存在三方面的主要隐患:桥头与路堤具有较大的沉降差;桥台倾斜或桥台底部出现垂直裂缝;桥台向河心移动。软土层地质结构及物理地学性质、桥台形式、勘探与施工质量是影响桥台位移的主要原因。淮安市高等级公路建设的桥梁建设实践表明,应从设计施工、养护方面采取综合防治措施,使损失减到最低限度。
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| 关 键 词： | 软土地基 隐患 桥台滑动 桥台倾斜 影响因素 防治措施 |
| 文章编号： | 1006-5296（2006）03-0189-04 |
| 收稿时间： | 2006-03-22 |
| 修稿时间： | 2006-03-222006-06-06 |
ANALYSIS AND AVOID METHODS OF THE BRIDGE FAILURES CAUSED BY ABUTMENT DISPLACSMENTS AND SETTLEMENTS ON THE SOFT CLAY FOUNDATION |
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| Sun Wenbin.ANALYSIS AND AVOID METHODS OF THE BRIDGE FAILURES CAUSED BY ABUTMENT DISPLACSMENTS AND SETTLEMENTS ON THE SOFT CLAY FOUNDATION[J].Geology of Chemical Minerals,2006,28(3):189-192,148. |
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| Authors: | Sun Wenbin |
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| Institution: | Dept. of Civil Eng., Huaiyin Institute of Technology, Huaian, Jiangsu , 223001, China |
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| Abstract: | The abutment is one of the most inportmrnt structures in a bridge,it supports the superstructure and spreads the loading to foundations,so its safety directly influences the safety and durability of bridge.But,a abutment built on the soft clay foundations may exist three hidden dangers as follows:causing excessive differential settlements between abutment and embankment,inducing abutment declines and appearing vertical cracks in abutmemt bottom,resulting abutments slidding to reiver.These hidden dangers and damages exist widely and appear repeatedly in bridges in Huaian region.According to experiences of our bridge engineering practices during high-grade highway construction in Huaian in recently years,this paper introduced some more widespread bridge hidden dangers and damages causd by abutment displacesments on the soft clay foundations,analysed some major causes of abutment displacesments,and put forward many avoid methods from design,construction to conservation and other aspects.These experiences may be a guide to construct the bridge on the soft clay foundations. |
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| Keywords: | soft clay foundation dangers and damages abutment displacesment abutment decline analysis avoid methods |
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