| 基于GlS的玉林-铁山港公路地质灾害危险性评价 |
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| 引用本文： | 徐涛,张峰,张桂林,李荣华,杨锋.基于GlS的玉林-铁山港公路地质灾害危险性评价[J].桂林工学院学报,2012(1):55-62. |
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| 作者姓名： | 徐涛 张峰 张桂林 李荣华 杨锋 |
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| 作者单位： | [1]武警黄金地质研究所,河北廊坊065000 [2]桂林理工大学地球科学学院,广西桂林541004 [3]广西地质环境监测总站玉林分站,广西玉林537000 |
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| 基金项目： | 广西区教育厅科研项目（桂教科研[2001]401）;广西玉林至铁山港公路建设项目地质灾害危险性评估项目 |
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| 摘 要： | 以玉林-铁山港高速公路崩塌和滑坡、岩溶塌陷地质灾害为研究对象，结合评价区实际情况，选取了12个具体的评价因子，其评判模型的影响因素集U={岩溶塌陷点数，滑坡和崩塌点数，地层岩性，断裂构造，岩土体结构，水文特征，地貌类型，地形坡度，地形坡向，年平均降雨量，地震，人类工程活动}，确定了研究路段地质灾害危险性评价等级评判集V={轻度，中度，中高度，高度}。运用基于GIS技术的信息量法和MORPAS3．0中信息量计算模块，对研究路段崩塌一滑坡、岩溶塌陷灾害进行了危险性评价：该段地质灾害危险性等级以轻度一中度为主，高度危险区仅在局部发育，公路沿线地质灾害易发程度弱一中等。综合评价结果与地质灾害发育情况现状和分布特征吻合较好。
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| 关 键 词： | 崩塌 滑坡 岩溶塌陷 危险性评价 信息量法 GIS 玉林-铁山港高速公路 |
GIS-Based Risk Assessment for Geological Disasters of Yulin - Tieshangang Highway |
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| XU Tao,ZHANG Feng,ZHANG Gui-lin,LI Rong-hua,YANG Feng.GIS-Based Risk Assessment for Geological Disasters of Yulin - Tieshangang Highway[J].Journal of Guilin University of Technology,2012(1):55-62. |
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| Authors: | XU Tao ZHANG Feng ZHANG Gui-lin LI Rong-hua YANG Feng |
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| Affiliation: | 1. Gold Geological Institute, Chinese People＇s Armed Police Force, Langfang 065000, China; 2. College of Earth Science, Guilin University of Technology, Guilin 541004, China; 3. Yulin Branch Station of Guangxi Geological Environment Monitoring Station, Yulin 537000, China) |
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| Abstract: | According to the situation of Yulin - Tieshangang The risk evuluation standards of geological disasters include Highway, twelve assessment factors are selected. U = t karst collapse number, collapse and landslide number, stratum lithology, faulted structure, rock-soil characteristic, hydrology geologic characteristics, geomor- phological types, terrain slope, aspect, average annual rainfall, earthquake, human engineering activity }. The risk assessment can be divided into four grades： low grade, medium grade, medium-high grade, high grade. Based on GIS, the risk evaluation of collapse, landslide and karst collapse is carried out by the information value method and information value computation modle of MORPAS 3.0. The risk of the highway geological disasters takes low grade to medium grade as a main part, high grade area is only in partial section. The geo- logical disasters trend is light to medium. The evaluation is in accordance with the investigation. |
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| Keywords: | collapse landslide karst collapse risk assessment information value toothed GIS Yulin-Tieshangang Highway |
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