| 基于强度理论的单沟泥石流风险评估 |
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| 引用本文： | 徐继维,张茂省,范仲杰,贾俊,高波.基于强度理论的单沟泥石流风险评估[J].水土保持通报,2014(3):145-149. |
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| 作者姓名： | 徐继维 张茂省 范仲杰 贾俊 高波 |
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| 作者单位： | 长安大学地质工程与测绘工程学院, 陕西西安 710054;国土资源部黄土地质灾害重点实验室中国地质调查局西安地质调查中心, 陕西西安 710054;长安大学地质工程与测绘工程学院, 陕西西安 710054;国土资源部黄土地质灾害重点实验室中国地质调查局西安地质调查中心, 陕西西安 710054;国土资源部黄土地质灾害重点实验室中国地质调查局西安地质调查中心, 陕西西安 710054 |
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| 基金项目： | 国家自然科学基金项目"高山峡谷区域暴雨泥石流成灾临界阈值研究"(41302224); 国土资源大调查项目"陕西省重要城镇地质灾害风险评估"(12120113008900) |
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| 摘 要： | 以陕西省商洛市山阳县红椿沟作为研究对象,采用定量计算和数据归一化处理的方法,提出强度指数的概念,对泥石流风险计算公式进行了拓展,使其可以表征泥石流规模及可能破坏能力。同时对不同降雨条件下的红椿沟泥石流风险进行了评估。研究表明,6h降雨量达到198.4mm及以上时红椿沟发生泥石流的概率为100%。日降雨量r=37.19mm,泥石流风险低;r=64.34mm,泥石流风险中;r=104.94mm,泥石流风险高;r=282.74mm,泥石流风险很高。
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| 关 键 词： | 泥石流 强度指数 危险性 风险 红椿沟 |
| 收稿时间： | 2013/12/7 0:00:00 |
| 修稿时间： | 2013/12/13 0:00:00 |
Risk Assessment of Single Debris Flow Based on Intensity Theory |
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| XU Ji-wei,ZHANG Mao-sheng,FAN Zhong-jie,JIA Jun and GAO Bo.Risk Assessment of Single Debris Flow Based on Intensity Theory[J].Bulletin of Soil and Water Conservation,2014(3):145-149. |
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| Authors: | XU Ji-wei ZHANG Mao-sheng FAN Zhong-jie JIA Jun and GAO Bo |
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| Institution: | College of Geological Engineering and Geometry, Chang'an University, Xi'an, Shaanxi 710054, China;Key Laboratory for Geo-hazards in Loess Area, MLR/Xi'an Center of Geological Survey, China Geological Survey, Xi'an, Shaanxi 710054, China;College of Geological Engineering and Geometry, Chang'an University, Xi'an, Shaanxi 710054, China;Key Laboratory for Geo-hazards in Loess Area, MLR/Xi'an Center of Geological Survey, China Geological Survey, Xi'an, Shaanxi 710054, China;Key Laboratory for Geo-hazards in Loess Area, MLR/Xi'an Center of Geological Survey, China Geological Survey, Xi'an, Shaanxi 710054, China |
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| Abstract: | Risk assessment of debris flow in the Hongchun Gully of Shanyang County, Shangluo City, Shaanxi Province was studied. Risk assessment of debris flow under different rainfall conditions was carried out by employing the methods of quantitative calculation and data normalization. Intensity index was introduced to characterize the scale and potential ability of damage. Results show that the probability of debris flow occurrence is 100% when rainfall reaches 198.4 mm or more in 6 h. The level of debris flow risk is low when daily rainfall (r) reaches 37.19 mm; the level is middle when the r is 64.34 mm; the level is high when the r is 104.94 mm; and the level is very high when the r is 282.74 mm. |
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| Keywords: | debris flow intensity index hazard risk Hongchun Gully |
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