摘要
一把伞水库是文山市马关县拥有11个溶洼库区的天然季节性水库,水库的封堵成库不仅可改善当地的生态环境,也可为当地居民提供水源以缓解生产生活用水困境。研究区岩溶发育,地下河管道错综分布,并串联了各岩溶洼地。为了探究库区地下河管道走向和分布规律,开展示踪试验,选用荧光素钠和罗丹明作为显色示踪剂,利用Qtracer2软件对各示踪路径的水文地质参数和地下管道规模参数进行估算。结果表明:主管道YBS01-YBS05和南支管道YBS03-YBS05储水丰富,分别为79060 m^(3)和72546 m^(3)。大马固水库北部地下河入口YBS01和YBS02具有水力联系,并证实了南支管道受到东北向压扭性断层F_(3)的阻挡与主管道无水力联系。研究成果为一把伞水库的堵洞成库提供了重要支撑,也可为一把伞水库库容计算提供基础资料。
The Yibasan Reservoir,located in Maguan County,Wenshan City,is a natural seasonal reservoir consisting of 11 karst depression reservoirs.Transforming these reservoirs into functional water storage facilities not only enhances the local ecological environment but also addresses the water supply challenges faced by the local community.The study area exhibits significant karst development,with an intricate network of underground river channels connecting the karst depressions.To investigate the patterns and distribution of underground river channels within the reservoir area,tracer tests were conducted with sodium fluorescein and rhodamine as tracers.The hydrogeological parameters and underground river network scale were estimated with Qtracer2.The results reveal abundant water storage in the major underground channel YBS01-YBS05 and the southern branch YBS03-YBS05,reaching 79060 m^(3) and 72546 m^(3),respectively.YBS01 and YBS02 in the northern part of the Damagu Reservoir are hydraulically connected.On the other hand,the southern branch is obstructed by the northeast-oriented compression torsion fault F3,leading to no hydraulic connection with the main channel.These findings provide crucial support for the reservoir formation process,and also offer fundamental data for calculating the capacity of the Yibasan Reservoir.
作者
罗锐恒
刘天云
胡顺强
赵永宾
潘晓东
彭聪
LUO Rui-heng;LIU Tian-yun;HU Shun-qiang;ZHAO Yong-bin;PAN Xiao-dong;PENG Cong(Water Resources and Electric Power Survey and Design Institute of Wenshan Zhuang and Miao Autonomous Prefecture,Wenshan 663000,China;Institute of Karst Geology,Chinese Academy of Geological Sciences,Ministry of Land and Resources/Guangxi Key Laboratory of Karst Dynamics,Guilin 541004,China;UNESCO International Center for Karst Research,Guilin 541004,China)
出处
《长江科学院院报》
CSCD
北大核心
2023年第6期43-48,共6页
Journal of Changjiang River Scientific Research Institute
基金
广西重点研发计划项目(桂科AB21196026)
中国地质调查局地质调查项目(DD20190326)
云南省社会服务项目(YRSF-2020-505)。
