西藏昌都地质灾害特点及防治对策

Characteristics and prevention measures of geological hazards in Changdu City,Tibet

地质灾害作为昌都分布广泛的自然灾害,对当地的工程活动及人民生产生活造成了巨大威胁和严重破坏。本文基于昌都市地质灾害统计数据,对区域内地形地貌、气象水文、构造岩性、人类工程活动的时空分布特征进行分析,全面总结了辖区内地质灾害的类型、规模、分布及危险性状况,并结合昌都经济社会发展和区域地质及气候变化特点,对昌都地质灾害的发育趋势进行预测。最后,根据西部欠发达地区实际,从推进地质灾害详查、建立地质灾害灾情监测预警预报系统、完善四级群测群防网络、加强地质灾害应急体系建设及工程治理力度等方面,提出以地质灾害工程治理与国土空间开发相结合的具体措施。

Geological hazards,as a wide range of natural disasters in Changdu City,have caused huge threat and serious damage to people’s lives and livelyhood. Based on the statistical analysis of geological hazards of Changdu City, the space-time distribution characteristics of the terrain and topography, meteorological hydrology,tectonic lithology and human engineering activities were analysised. In addition,the types,scale,distribution and danger status of geological hazards in the area are comprehensively summarized. Considering the socio-economic development,regional geology and climate of Changdu City,the development trend of geological hazards is predicted. Due to underdevelopment of Changdu City, the prevention measure of combination of geological disaster engineering management and geographical space development is proposed.These measures includes pushing forward investigation of geological hazards,establishing monitoring and early warning system for geological hazards, improving the four level network of mass observation and mass preparedness,constructing emergency system and strengthening engineering management of geological hazards.