| 基于故障树分析法的亚热带地区泥石流危险性评价 |
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| 引用本文： | 吴强,徐林荣,陈宏伟,陈鸿志.基于故障树分析法的亚热带地区泥石流危险性评价[J].水土保持通报,2014(6):316-320,326. |
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| 作者姓名： | 吴强 徐林荣 陈宏伟 陈鸿志 |
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| 作者单位： | 中南大学 土木工程学院, 湖南 长沙 410075;中南大学 土木工程学院, 湖南 长沙 410075;中南大学 土木工程学院, 湖南 长沙 410075;重庆蜀通岩土工程有限公司, 重庆 401147 |
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| 基金项目： | 国家自然科学资助项目"泥石流危害桥隧工程承灾链特征与工程易损度动态评价方法研究"(41272376);中国铁路总公司科技研究开发计划项目(2011G017-C) |
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| 摘 要： | 通过分析泥石流危害的影响因子及其间存在的逻辑关系,运用故障树分析法(FTA),针对亚热带地区泥石流主要危害线域工程的特点,建立了泥石流灾害评价故障树,并应用于泥石流危险性评价。对广东省乐昌市16条泥石流沟危险度的评价结果表明,该方法与传统灰色关联度危险度评价法结果一致性较高,且更符合实际情况。该法克服了传统方法因子、权重不灵活,未考虑因子之间的非线性关系,及地区适用局限性等问题。从而证明了故障树分析(FTA)法在泥石流危险性评价应用中的有效性和可行性。
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| 关 键 词： | 泥石流 故障树分析法(FTA) 亚热带 危险性评价 |
| 收稿时间： | 5/4/2014 12:00:00 AM |
| 修稿时间： | 6/4/2014 12:00:00 AM |
Hazard Assessment of Debris Flow in Subtropical Area Based on Fault Tree Analysis |
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| WU Qiang,XU Lin-rong,CHEN Hong-wei and CHEN Hong-zhi.Hazard Assessment of Debris Flow in Subtropical Area Based on Fault Tree Analysis[J].Bulletin of Soil and Water Conservation,2014(6):316-320,326. |
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| Authors: | WU Qiang XU Lin-rong CHEN Hong-wei and CHEN Hong-zhi |
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| Institution: | School of Civil Engineering, Central South University, Changsha, Hu'nan 410075, China;School of Civil Engineering, Central South University, Changsha, Hu'nan 410075, China;School of Civil Engineering, Central South University, Changsha, Hu'nan 410075, China;Chongqing Shutong Geotechnical Engineering Co., Ltd., Chongqing 401147, China |
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| Abstract: | The hazard assessment of debris flow was conducted by applying fault tree analysis(FTA) on characteristics of debris flow line engineering in subtropical area after analyzing influence factors of debris flow and the logical relationships between them. The new hazard assessment was applied to evaluate the hazard degree of 16 debris flow gullies in Lechang City of Guangdong Province. The results showed that it is more reasonable than the traditional grey correlation method because it solved some of the problems the traditional method always got such as the applying area was limited, the influence factors and weight were inflexible, and the non-linear relationship between them was not considered. Therefore, the fault tree analysis(FTA) was proved to be an effective and feasible method for the hazard assessment of debris flow. |
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| Keywords: | debris flow fault tree analysis(FTA) subtropical hazard assessment |
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