摘要
中国公路地质灾害类型较多,不同区域的灾害危险性区别较大,给灾害防治带来一定困难。根据灾害影响因素和危险性评价指标,采用影响因素叠加法,基于ArcGIS 10.0软件,分别进行滑坡（崩塌）、泥石流等单灾种和公路地质灾害综合危险性评价与空间分析;以公路地质灾害综合危险度为指标,完成中国公路地质灾害危险性区划。研究结果表明：中国公路地质灾害综合危险度处于1.000-8.615范围内,公路地质灾害危险性区划结果与实际公路地质灾害分布状况基本一致;公路地质灾害的极重灾区为武夷山—台湾山区和川滇山地;以图件形式明确公路地质灾害危险性在中国的分异状况,并划分不同等级的危险区,可为三级公路地质灾害危险性区划提供基础。
There were many kinds of highway geo-hazards in China and their risk levels existed great differences in different areas, which brought difficulties for prevention and control. According to the influencing factors and assessment indexes, risk assessments and spatial analysis of highway landslide （collapse）, debris flow and comprehensive geo-hazards were conducted based on ArcGIS10. 0 and factor superposition method. According to the highway geo-hazards comprehensive risk indexes, risk regionalization of highway geo-hazards in China was also accomplished. The results show that highway geo-hazard comprehensive risk index in China ranges from 1. 000 to 8. 615; the regionalization scheme is coincident with the actual distribution of highway geo-hazards; the severest dangerous zones are Wuyishan-Taiwan mountains area and Sichuan-Yunnan mountains area. Description of highway geo-hazard risk in China by maps and classification of different risk grades can provide basic data for the regionalization of third-level highway geo-hazards. 8 tabs, 4 figs, 14 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2015年第5期22-27,共6页
Journal of Chang’an University(Natural Science Edition)
基金
交通运输部西部交通建设科技项目(2006 318 000 07)
中交股份科技研发项目(2011-ZJKJ-04)
关键词
道路工程
公路地质灾害
危险性评价
空间分析
危险性区划
road engineering
highway geo-hazard
risk evaluation
spatial analysis
risk region-alization
