GIS在滑坡稳定性评价中的应用——以汉源县二蛮山为例

谭春洪; 朱志铭; 周凯睿; 边菁生; 魏源; 邹祖银; 张云奇

GIS在滑坡稳定性评价中的应用——以汉源县二蛮山为例

1.
四川农业大学城乡建设学院, 四川都江堰 611830
2.
四川农业大学经济管理学院, 四川成都 611130
3.
四川农业大学商学院, 四川都江堰 611830
4.
四川农业大学旅游学院, 四川都江堰 600830

基金项目:

国家自然科学基金项目 41102224

四川农业大学“大学生创新性实验计划”项目 121062672

详细信息

作者简介:
谭春洪(1992-),男,四川农业大学城乡建设学院地理信息系统专业在读本科生。E-mail:18081029448@163.com

通讯作者:
邹祖银(1974-),男,副教授,在读博士,主要从事道路与铁道工程科研教学工作。E-mail:zouzyin@gmail.com

中图分类号: P642.22
计量
- 文章访问数: 102
- HTML全文浏览量: 74
- PDF下载量: 12
- 被引次数: 0
出版历程
- 收稿日期: 2013-03-20
- 刊出日期: 2013-09-28

APPLICATION OF GIS IN LANDSLIDE STABILITY EVALUATION: A CASE STUDY FOR ERMANSHAN LANDSLIDE

1.
Urban and Rural Development College of Sichuan Agricultural University, Dujiangyan 611830, China
2.
Economics and Management College of Sichuan Agricultural University, Chengdu 611130, China
3.
Business College of Sichuan Agricultural University, Dujiangyan 611830, China
4.
Tourism College of Sichuan Agricultural University, Dujiangyan 611830, China

摘要

摘要: 采用野外调查与室内实验相结合的方法，以四川汉源县二蛮山作为研究对象，通过对滑坡发生的环境条件、发育特征和机理进行分析，选取了滑坡体特征、地质构造、高程、坡向、坡度、地震、降雨等因素作为研究分析变量，将GIS与模糊数学评价方法相结合，开发滑坡稳定性评价插件，对研究区域进行危险性区划，尽量避免易发生地质灾害的区域，减小人员伤亡和财产损失。研究结果表明，滑坡的发生区域主要集中在高程1600 m左右、坡度30°—50°地段，随着高度和坡度的增大，发生滑坡的可能性也逐渐增加。
- 二蛮山 /
- 滑坡稳定性 /
- GIS /
- 模糊数学
Abstract: In this paper, the method of theoretical knowledge, field surveys and laboratory experiments were used to analyze the environmental conditions, development characteristics and mechanism of the Ermanshan landslide in Hanyuan County, selecting the characters of landslide, geological structure, elevation, aspect, slope, earthquake, rainfall and other factors as analysis variables. We combine GIS with fuzzy mathematical evaluation method, develop the landslide stability evaluation plug-in, and then divide the risk regionalization of study area, in order to avoid occurrence of geological hazards in the area, reduce casualties and property losses. The results show that the landslide areas are mainly concentrated on the elevation at about 1600 m and 30° to 50° slope area. With the increase of height and slope, the possibility of landslides is raised.
- Ermanshan /
- landslide stability /
- GIS /
- fuzzy mathematics

HTML全文

图 1 滑坡体概况

Figure 1. The situation of landslide body

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图 2 滑坡体特征

Figure 2. The features of landslide body

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图 3 滑坡前48 h逐小时和累计降雨量

Figure 3. Hourly and accumulated rainfall before 48 hours of landslide occuring

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图 4 评价单元划分图

Figure 4. A map showing division of the evaluation unit

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图 5 坡向图

Figure 5. A map of aspect

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图 6 高程图（黑色为阴影效果）

Figure 6. A map of elevation

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图 7 评价插件运行界面

Figure 7. The running interface of evaluation plugin

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图 8 降雨量为6 mm时危险性评价图

Figure 8. A risk assessment map for the 6 mm rainfall

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表 1 划分标准与面积比例

Table 1. The standard and proportion scale

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