三峡工程库区移民迁建区地质灾害与防治

三峡工程移民总人口达120万人,移民迁建区地质条件复杂,地质环境容量极为有限,人地关系紧张,移民安置难度大。本文将三峡工程移民迁建区地质工作归结为地质条件的复杂性、地质工作的阶段性、地质认识的局限性、地质问题的长期性4个方面,并对三峡库区地质灾害临测预警工程的建设内容和运行方式进行了初步探讨。三峡库区地质灾害预警工程将按照“中央领导,分省负责,县为基础”的方针,在群测群防体系和专业技术体系相结合的基础上,以国家、省市和县区3级地质环境监测站为依托,采用现代化的计算机网络技术和群测群防手段,对库区以滑坡为主的地质灾害进行分批分级监测,三峡库区地质灾害预警工程将分4个阶段实施。最后,就三峡工程移民迁建区地质灾害防治工作提出了建议。

Geohazards and their prevention in resettlement areas of emigrants from the reservoir region of the Three Gorges project

The emigrants of the Yangtze River Three Gorges project have a total population of 1.2mil-lion.In the resettlement areas of the emi grants the geological conditions are complex,the geological envi-ronment has a very limited volume and the relations between land and men are strained,so resettlement work is difficult.This paper summarizes the geological work in the emigrant resettlement areas of the Three Gorges project as the complexity of the geological conditions ,operation of geological work by stages,limitation of geological understanding and protracted nature of geological problems and preliminarily discusses the content and mode of operation of the geohazard monitoring and warning project in the Three Gorges reservoir region.The geohazard monitoring and warning project in the Three Gorges reservoir re-gion will be undertaken in light of the principle of "central leadership,division of responsibilities among provinces and counties as a basis",on the basis of integrating the mass monitoring and prevention system with professional technological system,with geological environmental monitoring stations at three levels(national,provincial and county)as a backing and by using the modernized computer network technology and means of mass monitoring and mass prevention.The geohazard masses dominated by landslides will be monitored by groups and by different levels.The project will be implemented in four stages.Finally a sug-gestion is advanced about the geohazard prevention and control in the resettlement areas of the Three Gorges project.