| 黄土地区公路排水沟渠出口破坏机理及工程防治 |
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| 引用本文： | 李家春,郭平,周怀治.黄土地区公路排水沟渠出口破坏机理及工程防治[J].长安大学学报(自然科学版),2004,24(4):26-30. |
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| 作者姓名： | 李家春 郭平 周怀治 |
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| 作者单位： | 1. 长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064
2. 绍兴市公路管理处,浙江,绍兴,312000 |
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| 基金项目： | 国家西部交通建设科技项目(2001-318-812-34) |
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| 摘 要： | 通过大量调查和工程经验,研究发现在黄土地区公路建设中,公路排水沟渠出口破坏不仅影响路基边坡的稳定性和正常使用功能,而且给公路后期养护带来极大的困难,增加公路养护成本。结合工程力学和流体力学知识,分析了黄土地区公路排水沟渠出口破坏的形式以冲刷坑、湿陷坑为主;原因是黄土具湿陷性、抗蚀性差,出口水力条件不利。针对黄土地区特点提出了相应的工程防治措施,包括消能减冲、防止湿陷、防止结构失稳三方面工程措施,可应用于黄土地区公路排水系统设计及其病害治理。
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| 关 键 词： | 道路工程 黄土地区 公路排水 沟渠出口 冲刷 防治 |
| 文章编号： | 1671-8879(2004)04-0026-05 |
| 修稿时间： | 2003年12月3日 |
Damage mechanism and protection of highway ditch exit at loess area |
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| LI Jia-chun,GUO Ping,ZHOU Huai-zhi,Chang'an University,Xi'an ,China, .Shaoxing Highway Administration,Shaoxing ,China.Damage mechanism and protection of highway ditch exit at loess area[J].JOurnal of Chang’an University:Natural Science Edition,2004,24(4):26-30. |
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| Authors: | LI Jia-chun GUO Ping ZHOU Huai-zhi Chang'an University Xi'an China Shaoxing Highway Administration Shaoxing China |
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| Institution: | LI Jia-chun~1,GUO Ping~1,ZHOU Huai-zhi~2,Chang'an University,Xi'an 710064,China, 2.Shaoxing Highway Administration,Shaoxing 312000,China) |
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| Abstract: | According to the investigation and experience of highway engineering, this paper discovered that the broken of ditch exits at loess area can not only affect the roadbed stability and traffic safety, but also bring difficulty and high cost to highway maintenance. The main form of ditch exit destroy is scour pit and collapsible pit by the knowledge of engineering mechanics and fluid mechanics, and the reasons is the collapsibility and wash-out of loess. This paper brought out a list of prevention measures, including dissipation energy, prevention collapsibility and prevention structural break. Those measures can be used in highway drainage system at loess area. |
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| Keywords: | road engineering loess area highway drainage ditch exit scour prevention |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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