| 四川省金川县城区红桥沟、蔡家沟泥石流及其防治 |
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| 引用本文： | 游勇,柳金峰,谢洪,陈晓清,吕娟,张金山.四川省金川县城区红桥沟、蔡家沟泥石流及其防治[J].中国地质灾害与防治学报,2008,19(4):7-12. |
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| 作者姓名： | 游勇 柳金峰 谢洪 陈晓清 吕娟 张金山 |
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| 作者单位： | 1. 中国科学院山地灾害与地表过程重点实验室,四川,成都,610041;中国科学院水利部,成都山地灾害与环境研究所,四川,成都,610041
2. 中国科学院水利部,成都山地灾害与环境研究所,四川,成都,610041 |
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| 基金项目： | 国家科技支撑计划
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中国科学院知识创新工程重要方向性资助项目
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| 摘 要： | 红桥沟、蔡家沟为大渡河上游（大金川）右岸的一级支沟，位于四川省金川县城区，曾多次发生过严重的泥石流灾害，直接威胁金川县城的安全。这两条沟的泥石流均为粘性泥石流，重度为2．10—2．25t／m^3，具有松散固体物质以表层滑塌及崩塌补给为主，成灾快，危害严重，活动频率较高，暴雨是泥石流的激发因素等特征。在分析红桥沟、蔡家沟泥石流性质及活动特征的基础上，提出拦、停、排的防治工程设计方案，工程实施后取得了很好的减灾及生态、环境效益。
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| 关 键 词： | 四川金川县 红桥沟 蔡家沟 山城地区泥石流 泥石流防治 |
The study on the debris flow and its controlling measures in Hongqiao and Caijia Gully in Jinchuan County of Sichuan Province |
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| YOU Yong,LIU Jin-feng,XIE Hong,CHEN Xiao-qing,LV Juan,Zhang Jin-shan.The study on the debris flow and its controlling measures in Hongqiao and Caijia Gully in Jinchuan County of Sichuan Province[J].The Chinese Journal of Geological Hazard and Control,2008,19(4):7-12. |
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| Authors: | YOU Yong LIU Jin-feng XIE Hong CHEN Xiao-qing LV Juan Zhang Jin-shan |
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| Abstract: | Hongqiao and Caijia gully,located in the back mountain of Jinchuan county,are both the first tributaries of the Dajinchuan River of Daduhe River system.Hongqiao and Caijia Gully are representative debris flows in mountain urban area of Sichuan Province,whose geological,geomorphologic,and climatic features are presented in this paper.The major characteristics of debris flow are as follows:(1) the loose solid material for debris flow is mainly supplied by the surface layer of landslide;(2) the debris flow causes rapidly disaster and strong damage;(3) high frequency;(4) rainstorm is the main triggering factor for debris flow.Based on analyzing the property and movement characteristics of debris flow in Hongqiao and Caijia gully,the engineering plans for disaster relief are put forward.After comparing three controlling measures,the third engineering plan is selected as the optimal plan.On the basis of the selected engineering plan,the social,ecological,environmental benefits are analyzed. |
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| Keywords: | Jinchuan County of Sichuan Province Hongqiao Gully Caijia Gully debris flow in mountain urban area controlling measures for debris flow |
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