摘要
水库渗漏与否与库区的地下水性状密切相关。本文主要分析了水库蓄水前常见的三种地下水条件、钻进过程中六种钻孔水位变化特征以及水库蓄水后常见的四种地下水条件。据此认为,在蓄水条件下,只有当库岸中的地下水位及深部测压水位均高于库水位或库区存在着地下水流停滞带时(当存在区域流系统时),水库才不致引起永久性的渗漏。否则,永久性的渗漏就会发生。
The reservoir seepage is closely related to the groundwater behavior. This paper analyses the following cases of groundwater condition commonly encountered in reservoir area: three conditions before storage, six conditions of borchole water situation during the drilling procedure, and four conditions after storage. It is seen that there would be no permanent reservoir seepage only when: (1)both the reservoir bank groundwater level and the deep piezometric water level are higher than the reservoir water level, or(2) there exists a lagging zone of groundwater flow (if there is regional flow system). Otherwise, permanent seepage will happen.
出处
《勘察科学技术》
1990年第3期28-32,共5页
Site Investigation Science and Technology
