中国水利Issue(22)：26-35,10.
新三峡库区长期地质安全战略研究
Studies on long-term geological safety strategy in the new Three Gorges Reservoir area
摘要
Abstract
In November 2020,the water storage level of the Three Gorges Dam was transitioned from 175 meter in experimental period to a normal operation level.Due to the population increase of over 10 million people in the Three Gorges Reservoir area,coupled with the annual cargo volume of the Yangtze River reaching 200 million tons,how to ensure long-term geological safety of townships and waterways in the reservoir area has become a top priority for disaster prevention and mitigation.Based on features of evolution of geological hazards in the Three Gorges Reservoir area during impoundment and operation periods,introductions are made on the monitoring and early warning system for geological hazards and problems with rock mass degradation and landslide surge risk caused by water level cycling and subsidence.Measures for long-term geological safety are proposed,such as using real-time monitoring for accurate early warning of landslides,high slopes,and bank slope degradation zones in urban areas around the reservoir area by application of information technology,paying more attention to the risks of landslides and collapses caused by deterioration zone of bank slope and accelerate comprehensive management of zoning and staging;strengthening remediation of unqualified geological structures and potential landslide disasters in the new areas expanded from the cities in the reservoir area,defining redlines for geological hazards;highlighting geological hazard risk management and geological safety diagnosis in resettlement townships;building up geological disaster prevention and emergency response capabilities;focusing on scientific and technological research on geological hazards since the impoundment of the reservoir,so as to work out forward-looking and targeted technologies and measures for comprehensive prevention and reduction of disasters during the follow-up work of the Three Gorges Project.关键词
新三峡库区/地质安全/地质灾害/岩体劣化/监测预警Key words
new Three Gorges Reservoir area/geological safety/geological hazards/rock mass degradation/monitoring and early warning分类
建筑与水利引用本文复制引用
殷跃平..新三峡库区长期地质安全战略研究[J].中国水利,2024,(22):26-35,10.基金项目
中国工程院战略咨询项目"新三峡库区城镇和航道长期地质安全保障战略研究"(2021-XZ-001). （2021-XZ-001）
