延庆盆地孔隙水水文地质特征分析  

Analysis of hydrogeological characteristics of pore water in Yanqing Basin

作　　者：孙洪升[1] 姚旭初[1] 魏红 刘增[1] 白国营 SUN Hongsheng;YAO Xuchu;WEI Hong;LIU Zeng;BAI Guoying(Beijing Institute of Water,Beijing 100048,China;Beijing Water Resources Planning and Research Institute,Beijing 100048,China;Beijing Hydrological Center,Beijing 100089,China)

机构地区：[1]北京市水利规划设计研究院,北京100048 [2]北京市水务规划研究院,北京100048 [3]北京市水文总站,北京100089

出　　处：《北京水务》2022年第6期1-4,共4页Beijing Water

摘　　要：根据松散沉积含水层埋藏特征、主要岩性、地下水位和补径排条件,将延庆平原区埋深50 m以下松散沉积层中孔隙水进行水文地质分区,划分为地下水补给区、径流区、过渡区和排泄区,并对各区的水文地质特征进行了分析,研究发现:在过渡区和排泄区,局部地下水具有高承压水头,承压水头高出地面1~3 m,呈自流状态,分析成果可为延庆平原区地下水资源保护与开发提供技术参考。According to the burial characteristics, main lithology, groundwater level and recharge, runoff and drainage conditions of loose sediment aquifers, this paper conducts hydrogeological division of pore water in loose sediment layers below 50 m buried depth in Yanqing Plain. It is divided into groundwater recharge area, runoff area, transition area and drainage area. Then the hydrogeological characteristics of each area are analyzed and studied. It is found that in the transition area and discharge area, the local groundwater has a high confined head, which is 1-3 m higher than the ground and in a gravity flow state.These preliminary analysis results provide a reference for the development, utilization and protection of groundwater resources in Yanqing plain.

关 键 词：延庆盆地 孔隙水 水文地质分区 自流 

分 类 号：X523[环境科学与工程—环境工程]