三峡库区地质灾害发展趋势及其减灾对策  

Trend of Geological Hazards and Countermeasure of Disaster Reduction in the Three Gorges Reservoir Area

作　　者：彭涛[1] 徐刚[1] 夏大庆[1] 

机构地区：[1]西南师范大学资源与环境科学学院,重庆北碚400715

出　　处：《山地学报》2004年第6期719-724,共6页Mountain Research

基　　金：西南师范大学自然地理学博士点开放基金资助(411408)~~

摘　　要：三峡库区是我国地质灾害最严重的地区之一。库区地质灾害的活动状况,不仅影响三峡水库的运行安全,而且还关系到库区人民群众的生命财产安全,必须要防患于未然。在研究三峡库区地质灾害主要特点及其成因的基础上,对库区蓄水后库岸再造过程和人类不合理活动可能引发地质灾害的发展趋势作了比较全面的分析;认为,三峡水库蓄水后,库岸地质灾害和人为诱发的地质灾害将相对增加,并呈现出阶段性。提出了三峡库区地质灾害的减灾对策。The Three Gorges Reservoir Area is one of the most serious area of the geological disasters in China. With complicated geology and geomorphology, frequent rainstorms and human factors,geological disasters of the area show some special features such as the varied types and higher frequencies, the vast disasters amounts, extensive distribution,and serious losses. The level of stored water will reach 175 metres in 2009. The scale and frequency of disaster will increase possibly because of great water level fluctuating, and more severe bank erosions after storing water and irrational human activities. Based on study of main features and causes of the scale disasters,this paper analyzes the trend of the disasters caused by rebuilding reservoir banks after storing water and irrational mankind activities. Some conclusions are as follows. (1) Disasters of the reservoir banks will be relatively active. Bank erosion will be more intensive and disasters of slope will increase, such as landslides, collapses, debris flow and so on. (2) The disasters induced by humanactivity will rise. (3) Earthquake and karst collapse will happen. (4) The geological disasters of the Three Gorges reservoir area will occur. After storing water periodically, disasterous activities will thread not only to the reservoir but also to vies and property in the reservoir area. Therefore, the disasters prevention must be taken on ahead. At last, the paper proposes some countermeasures of mitigating disasters. (1) The reservoir bank protection for towns should be strengthened. (2) The geo-disasters geological information system(GGIS) and monitoring and forecasting system should be developed perfectly. (3) We should solve the problem of geological disasters of the relocation construction. (4) We should also accelerate the construction of the ecological environment.

关 键 词：三峡库区 地质灾害 减灾对策 经济损失 气候因素 

分 类 号：P694[天文地球—地质学]