打鼓台水库右岸复杂岩溶成库条件的分析论证  

Analysis and Demonstration of Reservoir Forming Conditions in Complex Karst Areas on the Right Bank of Dagutai Reservoir

作　　者：彭峰 贺宏涛 简红波 PENG Feng;HE Hongta;o JIAN Hongbo(Zunyi Survey and Design Institute of Water Conservancy and Hydropower Co.Ltd.,Zunyi 563002 China)

机构地区：[1]遵义市水利水电勘测设计研究院有限责任公司,贵州遵义563002

出　　处：《红水河》2023年第2期128-132,共5页Hongshui River

摘　　要：近年来随着水利工程建设的高速发展,各种工程地质问题也屡见不鲜,岩溶渗漏就是主要的问题之一。笔者以打鼓台水库库区复杂岩溶水文地质成库条件论证为例,在查明地形地质条件的基础上,结合钻探、物探等综合勘查手段,对河间地块内岩溶发育特征、地下水系统分布特征以及库水向岭谷渗漏的可能性进行分析。结果表明:水库右岸河间地块可溶岩层内地下水位低缓但在分水岭一带存在弱岩溶层;不存在管道型渗漏条件,仅局部有裂隙型渗漏的可能;运用可溶岩裂隙性介质和层流为渗漏条件进行渗漏量计算,得出渗漏对工程效益、安全影响小,无须进行工程处理。该研究在同类工程中有一定的借鉴作用。In recent years with the rapid development of water conservancy project construction various engineering geological problems are common karst leakage is one of the main problems.Taking the demonstration of complex karst hydrogeological conditions in the reservoir area of Dagutai Reservoir as an example based on the identification of topographic and geological conditions combined with comprehensive survey methods such as drilling and geophysical exploration the karst development characteristics in the inter-river block the distribution characteristics of groundwater system and the possibility of reservoir water leakage to the valley are analyzed.The results show that the groundwater level in the soluble rock layer of the river block on the right bank of the reservoir is low but there is a weak karst layer in the watershed area There is no pipeline leakage condition only the possibility of local fissure leakage Using the soluble rock fissure medium and laminar flow as the leakage condition to calculate the leakage amount it is concluded that the leakage has little influence on the engineering benefit and safety and no engineering treatment is needed.The research has certain reference function in similar projects.

关 键 词：岩溶地区 岩溶发育规律 地下水系统 渗漏 打鼓台水库 

分 类 号：TV221.2[水利工程—水工结构工程]