| 城市道路挖掘修复现状分析 |
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| 引用本文： | 吕荔炫,凌建明,袁文平,商国平.城市道路挖掘修复现状分析[J].城市道桥与防洪,2005(6):104-106. |
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| 作者姓名： | 吕荔炫 凌建明 袁文平 商国平 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,200092;上海市政工程管理处,上海,200030 |
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| 摘 要： | 通过对既有掘路的现场调查与测试,发现修复后的道路使用性能明显下降,存在沉降、边缘平行开裂、修复区龟裂和路表突起、坑洞等损坏形式。分析表明,道路开挖前后受力模式的变化、回填土路基过大的塑性变形及开挖界面的滑动剪切破坏是造成修复区路面损坏的主要原因。
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| 关 键 词： | 城市道路 挖掘修复 路面病害 成因机理 |
| 文章编号： | 1009-7716（2005）06-0104-03 |
| 收稿时间： | 2005-05-19 |
| 修稿时间： | 2005年5月19日 |
Analysis of Present Situation of Excavation and Repair of Urban Roads |
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| Lu Lixuan,Ling Jianming,Yuan Wenping et al..Analysis of Present Situation of Excavation and Repair of Urban Roads[J].Urban Roads Bridges & Flood Control,2005(6):104-106. |
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| Authors: | Lu Lixuan Ling Jianming Yuan Wenping |
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| Abstract: | Through the investigation and test of the site of the existing excavation road it found that the utilization performance of the roads after repair obviously drops and there are damage forms such as settlement, parallel cracking at edges, tortoise cracking in the repairing area and projecting road pavement and pits etc. The analysis shows that the variation of the formed mode before and after the excavation of roads, the plastic deformation due to too large backfill subgrade, the sliding, shear failure of the excavated interface are the main cause of pavement damage. |
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| Keywords: | urban road excavation and repairing pavement disease cause mechanism |
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