| 区域地质灾害风险评价要素权值计算方法及应用——以黄河上游地区地质灾害风险评价为例 |
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| 引用本文： | 张春山,张业成,马寅生,廖椿庭,吴满路,张立海.区域地质灾害风险评价要素权值计算方法及应用——以黄河上游地区地质灾害风险评价为例[J].水文地质工程地质,2006,33(6):84-88. |
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| 作者姓名： | 张春山 张业成 马寅生 廖椿庭 吴满路 张立海 |
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| 作者单位： | 1. 中国地质科学院地质力学研究所,北京,100081
2. 国土资源部实物地质资料中心,三河,065201 |
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| 基金项目： | 中国地质调查局资助项目 |
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| 摘 要： | 本文确定了灾害风险评价的主要影响要素和指标体系,依据选取的主要影响因素,采用灰色关联分析方法分别计算求得各关联因子的关联度和关联序,在此基础上,按各因素的关联度占所有因素的关联度之和的比重作为权植。在以往的区域风险评价中,一般是按关联度从小到大的顺序依次给定权值,人为影响比较大。本文采用的这种权值确定方法可以避免人为夸大各因子之间的作用,更趋于合理,而且也为采用计算机制图提供了前提。并以黄河上游地区为例进行了以县(市、旗)为单元的风险评价。
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| 关 键 词： | 地质灾害 风险评价 要素选取 权值计算 应用实例 |
| 文章编号： | 1000-3665(2006)06-0084-05 |
| 收稿时间： | 2006-02-21 |
| 修稿时间： | 2006-04-19 |
Calculation method and application of the right-weighty value on geological hazards in region |
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| ZHANG Chun-shan,ZHANG Ye-cheng,MA Yin-sheng,LIAO Chun-ting,WU Man-lu,ZHANG Li-hai.Calculation method and application of the right-weighty value on geological hazards in region[J].Hydrogeology and Engineering Geology,2006,33(6):84-88. |
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| Authors: | ZHANG Chun-shan ZHANG Ye-cheng MA Yin-sheng LIAO Chun-ting WU Man-lu ZHANG Li-hai |
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| Institution: | 1. Institute of Geomechanics , Chinese academy of geological science, Beijing 100081, China; 2. Center of factual material and geological data, Ministry of Land and resource, Sanhe 065201, China |
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| Abstract: | This paper established main influence factors and the index system of risk evaluation for geological hazards.It obtaind the related degree and number of each factor by analysis with the Grey Model method according to selected factors.Then,based on the related degree,the right-weighty value of each factor was calculated with each degree of factor divided by sum all degree of factors.But the right-weighty value was decided by people relied on the magnitude of related degree before,and affected very much by people.In this paper,the method of providing the right-weighty value can avoid the actions affected by people,and may be more in reason.At the same time,it will provide some condition for drawing some special map through computer.For example,this paper finished risk evaluation in the upper of Yellow River for each county unit. |
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| Keywords: | geological hazard risk evaluation select factors calculation of the right-weighty value application of example |
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