摘要
陡坡陡崖作为一种特殊的地形地貌,是造成滑坡、泥石流等各种地质灾害的重要因素之一。由陡坡陡崖引发的地质灾害会破坏人造地物,对人类的生命财产安全造成严重危害。本文利用DEM数据提取了浙江省温州市的陡坡陡崖,对温州市陡坡陡崖的影响范围进行系统研究,构建了温州市陡坡陡崖的潜在滑坡方向模型,并确定其对人造地物(如道路、房屋)的影响。本文主要研究内容有以下两个:(1)提取陡坡陡崖并对其潜在滑坡方向进行建模;(2)根据影响范围提取受影响的人造地物并建立基础数据库。结果表明,温州市的陡坡陡崖数量多,分布范围广且集中,其引发的地质灾害会对人造地物造成严重的潜在影响。本文构建的温州市基础数据库可以描述陡坡陡崖潜在影响的房屋和道路的位置,确定灾害重点防治区域,为温州市的灾害防治工作提供服务。
As a special topography,escarpments are one of the important factors causing various geological disasters such as landslides and mudslides.Geological disasters caused by escarpments will destroy man-made surface features and cause serious harm to the safety of human life and property.Based on the DEM data,we extrac the escarpments in Wenzhou,Zhejiang province,conduct a systematic study on the range of influence of the escarpments,and construct a potential landslide direction model ofthe escarpments in Wenzhou.We also determine its impact on man-made features(such as roads,houses).The main contents of this study are as follows:(1)extracting the escarpments and modeling their potential landslide directions;(2)extracting the affected artificial ground features according to the scope of influence and establishing a basic database.The results show that Wenzhou has a large number of escarpments,a wide range of distribution and concentration,and the geological disasters caused by them will have serious potential impacts on man-made surface features.The basic database constructed in this paper can describe the locations of houses and roads potentially affected by escarpments,determine key disaster prevention areas,and serve Wenzhou’s disaster prevention and control work.
作者
章豪
温剑峰
陈温清
徐刚
史瑞洁
戴欣宜
陈杰
朱安峰
范全龙
ZHANG Hao;WEN Jianfeng;CHEN Wenqing;XU Gang;SHI Ruijie;DAI Xinyi;CHEN Jie;ZHU Anfeng;FAN Quanlong(Zhejiang Security Vocational and Technical College,Wenzhou 325016,China;Wenzhou Geological Environment Monitoring Center,Wenzhou 325000,China;Central South University,Changsha 410083,China;Zhejiang City Security Big Data Co.,Ltd.,Wenzhou 325000,China)
出处
《测绘通报》
CSCD
北大核心
2021年第6期117-121,133,共6页
Bulletin of Surveying and Mapping
关键词
陡坡陡崖
地质灾害
基础数据库
防灾减灾
地形地貌
escarpments
geological disaster
basic database
disaster prevention and mitigation
topography and landform
作者简介
章豪(1982-),男,高级工程师,主要从事地理空间信息技术在自然灾害和城市安全领域的研究与应用,E-mail:183414266@qq.com;通信作者:陈杰,E-mail:cj2011@csu.edu.cn。
