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基于斜坡单元的山区城镇地质灾害风险快速评价研究—以江口镇为例
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中国地质科学院探矿工艺研究所,中国地质科学院探矿工艺研究所,中国地质科学院探矿工艺研究所,中国地质科学院探矿工艺研究所,中国地质科学院探矿工艺研究所

中图分类号:

D642.22

基金项目:

中国地质调查局地质调查项目“大巴山区城镇地质灾害调查”(编号:121201019000150003)


Study on the Rapid Evaluation of Geological Hazards in Mountain Towns Based on Slope Unit: Taking Jiangkou Town for Example
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Affiliation:

Institute of Exploration Technology,CAGS,Institute of Exploration Technology,CAGS,Institute of Exploration Technology,CAGS,Institute of Exploration Technology,CAGS,Institute of Exploration Technology,CAGS

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    摘要:

    本文以江口镇为研究实例,以县城高清DEM为底图,对研究区所有具有潜在隐患的可能成灾的、同时具有威胁对象的斜坡进行了划分圈定并编号。基于《半定性半定量斜坡风险评估表》,采用工程地质类比法,对圈定的每一个斜坡进行实地逐坡调查,获取斜坡的危险性得分和易损性评分。采用自然间断法将危险性和易损性划分为高、中、低三个等级,然后再以评估出的危险性等级和易损性等级分别为行向量和列向量,建立风险评估矩阵。通过风险矩阵,获得每一个斜坡的风险等级,最后将各斜坡的风险等级在地理信息图上和VR全景摄影图上展示,形成风险评价产品。

    Abstract:

    Taking Jiangkou Town as a case study and based on the high definition DEM of county town, all the slopes in the study area with potential danger and threatened object are delineated and numbered. Based on the “semi-qualitative and semi-quantitative slope risk assessment table” and using the engineering geological analogy method, the survey was conducted on each delineated slope to obtain the risk scores and vulnerability scores. The risk and vulnerability are divided into high, medium and low levels with the method of natural discontinuity, and then a risk assessment matrix is established by putting the assessed risk level and the vulnerability level as row vector and column vector respectively. Through the risk matrix, the risk level of each slope is obtained. At last, the risk grade of each slope is shown on the geographic information graph and VR panoramic photography to form a risk assessment of product.

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引用本文

易靖松,张勇,石胜伟,等.基于斜坡单元的山区城镇地质灾害风险快速评价研究—以江口镇为例[J].钻探工程,2018,45(8):72-78.
YI Jing-song, ZHANG Yong, SHI Sheng-wei, et al. Study on the Rapid Evaluation of Geological Hazards in Mountain Towns Based on Slope Unit: Taking Jiangkou Town for Example[J]. Drilling Engineering, 2018,45(8):72-78.

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  • 收稿日期:2018-07-18
  • 最后修改日期:2018-07-18
  • 录用日期:2018-07-30
  • 在线发布日期: 2018-09-30
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