| 公路桥头跳车的机理分析及防治措施 |
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| 引用本文： | 张新兵.公路桥头跳车的机理分析及防治措施[J].路基工程,2012,0(2):114-118. |
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| 作者姓名： | 张新兵 |
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| 作者单位： | 中南大学湖南中大设计院有限公司，长沙 410075 |
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| 摘 要： | 桥头路基工后沉降在路桥连接处一定范围内产生的纵坡变化（附加坡度）是导致高速行驶的汽车出现桥头跳车现象的根本原因。采取多种措施减少桥头路基的工后沉降并设置缓冲过渡段，是解决公路桥台跳车问题的主要技术途径。
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| 关 键 词： | 桥头跳车 工后沉降 附加坡度 缓冲过渡段 |
| 收稿时间： | 2019-11-09 |
Analysis on Mechanism of Bumping at Bridgehead and Prevention Measures |
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| Authors: | ZHANG Xin-bing |
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| Institution: | ZHANG Xin-bing (Hunan Zhongda Design Institute Co., Ltd. of Central South University, Changsha410075, China) |
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| Abstract: | The grade variation in approach （additional gradient） caused by post-construction settlement of bridgehead subgrade within certain scope at the junction of road and bridge is the basic reason resulting in vehicle at high speed bumping at bridgehead. Reducing the post-construction settlement of bridgehead subgrade and setting transition section for buffering by a variety of measures is the main technical method to solve bumping at bridgehead. |
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| Keywords: | bumping at bridgehead post-construction settlement additional gradient transition section for buffering |
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