中国岩溶2017，Vol.36Issue(6)：851-858,8.DOI:10.11932/karst20170608
大藤峡水库岩溶塌陷预防的安全调度研究
Study on the safe operation of karst collapse prevention in Datengxia reservoir
摘要
Abstract
Reservoir operation is easily to induce landslide,karst collapse and other geohazards in the reser-voir area.The safe operation of a reservoir can effectively reduce the occurrence of geological disasters.Tak-ing the Datengxia reservoir under construction as an example,this paper presents the prevention to karst col-lapse through reservoir safe operation.According to the field investigation,the mechanism model of karst collapse development is established,based on the analyses of geological information and developing situation of the karst collapse in the study area.In order to analyze the effect of groundwater dynamic due to reservoir operation on the karst collapse,the Modflow software is used to conduct the numerical simulation.Through the numerical simulation,both of the change of groundwater level caused by the fluctuation of reservoir wa-ter level and the change of groundwater velocity induced by the impoundment or drainage of Datengxia reser-voir are predicted.As the results,safety water level of the Datengxia reservoir is 51-62 m to prevent karst collapse in Wuxuan protection region,the safe impoundment speed of water level is 0-1.0 m·d-1,and the safe drainage speed of water level is 0-3.0 m·d-1.关键词
大藤峡水库/岩溶塌陷/安全调度/安全水位/蓄水安全速度/排水安全速度Key words
Datengxia reservoir/karst collapse/reservoir safe operation/safe water level/safe impound-ment speed/safe drainage speed分类
天文与地球科学引用本文复制引用
姜伏伟..大藤峡水库岩溶塌陷预防的安全调度研究[J].中国岩溶,2017,36(6):851-858,8.基金项目
贵州省科技厅科技支撑计划社发公关领域项目(黔科合[2016]支撑2846) （黔科合[2016]支撑2846）
贵州省教育厅青年科技人才成长项目(黔教合KY字[2016]226) （黔教合KY字[2016]226）
贵州理工学院高层次人才科研启动经费项目(2003001059) （2003001059）
中国地质调查项目(DD20160254) （DD20160254）
