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工程科学与技术:2009,41(3):273-283
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汶川地震危害道路交通及其遥感监测评估-以都汶公路为例
(1.湖南科技大学;2.中国科学院 成都山地灾害与环境研究所,四川 成都 610041)
Remote Sensing Monitoring and Assessment of Traffical Damage by Earthquake-- A Case Study in Du-Wen Highway
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投稿时间:2009-03-11    修订日期:2009-03-11
中文摘要: 摘要:汶川地震诱发了大规模、群发性次生山地灾害,严重损毁道路设施,中断交通,阻碍了抗震救灾和灾后恢复重建进程。通过对都汶公路漩口-雁门段地震次生山地灾害的遥感监测和实地调查,阐述了次生山地灾害类型与分布规律,初步分析了都汶公路沿线路基、路面、桥梁、隧道的损毁情况,并结合次生山地灾害的时空活动特性,提出了道路交通系统防灾减灾和恢复重建的对策与建议。研究结果表明:(1)研究区内强震引发大量崩塌、滑坡、泥石流、堰塞湖等次生山地灾害,其中崩塌3863处、总面积达68.9km2,泥石流沟74条,滑坡18处,堰塞湖5座,长度大于1km的地裂缝5条;(2)地震以及次生山地灾害严重损毁道路交通,汶川县漩口至雁门段,都汶公路阻断299处、掩埋和断道23.814km、80%的道路被破坏、87座桥梁和10座隧道受损,省道303线阻断18处、损毁比例75.1%,县乡等道路阻断3015处、断道长度178.213km、损毁比例37.97%;(3)崩塌、滑坡、泥石流、堰塞湖等主要次生山地灾害的分布受地震烈度、地质构造、地形地貌、地层岩性的控制,并具有明显的滞后性和延续性;(4)利用GIS和遥感技术,能够快速有效地进行地震次生山地灾害的动态监测与灾情评估,从而为应急救灾和灾后重建工作提供科学依据和借鉴参考。
Abstract:WenChuan Earthquake brought out large-scale and group-occurring secondary mountain hazards. They not only severely destroyed the highways and blocked the traffic, but also blocked the process of earthquake relief and reconstruction. After the remote sensing monitoring and field survey in XuanKou-Yanmen part of the DuJiangyan-WenChuan Highway, the article describes the type and the distribution of the secondary mountain hazards and analyzes the damage of the subgrades, pavements, bridges and tunnels along the DuJiangyan-WenChuan Highway. In addition, combining with the temporal characteristics of secondary mountain hazards, the article puts the countermeasure and suggestion of the relief and reconstruction of the traffic system. The research result shows that: (1)In the research region, strong earthquake causes a lot of secondary mountain hazards such as collapses, landslides, debris flows, dammed lakes. There are 3863 collapses with a total area of 68.9km2, 74 debris flow gullies, 18 landslides, 5 dammed lakes, 5 ground fissures which is longer than 1km.((2)Earthquake and secondary mountain hazards severely destroyed the highway and traffic. From XuanKou to YanMen in WenChuan, there are 299 blocks in DuJiangyan-WenChuan Highway. Also, there are barriers with a length of 23.814km. 80% of the highway, including 87 bridges and 10 tunnels, has been destroyed. (3)The distribution of the main kind of collapse, landslide, debris flow, dammed lake mainly depends on seismic intensity, geological structure, topography and geomorphology and rock characters.4) By using the technology of GIS and remote sensing, the disaster evaluation and dynamic monitoring can be effectively carried out, so it can provide the scientific basis and references to the relief and reconstruction.
文章编号:200900241     中图分类号:    文献标志码:
基金项目:国家重点基础研究发展计划
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引用文本:
韩用顺,崔鹏,朱颖彦.汶川地震危害道路交通及其遥感监测评估-以都汶公路为例[J].工程科学与技术,2009,41(3):273-283.
hanyongshun,崔鹏,朱颖彦.Remote Sensing Monitoring and Assessment of Traffical Damage by Earthquake-- A Case Study in Du-Wen Highway[J].Advanced Engineering Sciences,2009,41(3):273-283.