摘要
由于南召县境内断裂构造发育,地质环境条件复杂,区内人类工程活动较强烈,导致该地区滑坡、崩塌、泥石流等地质灾害频发。对当地人民的生产、生活和经济发展造成了严重影响。本文采用遥感解译、地面测绘、野外调查、详细勘察和室内试验等多种手段相结合的方法对该区进行了大比例尺的地质灾害详细调查,并采用Mapgis等软件对野外调查结果进行了矢量化和耦合分析,对地质灾害的发育情况有了全面了解。该区共发育地质灾害232处,其中崩塌92处,滑坡75处,不稳定斜坡52处,泥石流5条,地面塌陷8处,以崩塌、滑坡和不稳定斜坡为主要地灾类型。同时结合地形地貌、地质构造、岩土类型、降雨条件和工程活动等条件对地灾发育和地质环境之间的关系进行了分析,对该区地质灾害形成条件和发育分布规律形成了全面系统的认识,也为经济发展和地质灾害防治规划提供了有力的支撑。
There are developmental fault structures, complex geological environment, strong human engineering activities in the territory of Nanzhao county, resulting landslides, collapses, mudslides and other geological disasters in this region frequently occur, which have a serious impact on local people＇s production and living and economic development. In this paper, the interpretation of remote sensing, ground mapping, field survey, detailed exploration and laboratory tests and other means have been taken combined to carried out large-scale detailed investigation of geological disasters in the area, software such as mapgis has been used at the same time to vector and coupling analyze the field survey results. So that we have a comprehensive understanding of the development of geological disasters. The number of geological disasters developed in the area are totally 232, including 92 collapses, 75landslides, 52unstable slopes, 5mudslides and 8ground subsidence, the main type of geological disasters is collapse, landslides and unstable slopes. This paper has combined the topography, geological structure, soil type, rainfall conditions and engineering activities and other conditions to analyzed the relationship between the development of the geological disaster and the geological environment, gotten a comprehensive and systematic understanding about geological disasters＇ forming and the law of development and distribution, meanwhile provides a strong support for economic development and geological disaster prevention planning.
出处
《中国地质灾害与防治学报》
CSCD
2014年第1期82-89,共8页
The Chinese Journal of Geological Hazard and Control
基金
国家自然科学基金(41172278)
四川省教育厅重点项目(12ZA010)
地质灾害防治与地质环境保护国家重点实验室自由探索课题(SKLGP2011Z004)
关键词
南召县
地质灾害
形成条件
分布规律
Nanzhao county
geological disasters
forming conditions
distribution law
