| 摘要: |
| 在黄河三角洲近代冲积平原上修建水库,一般蓄水深度仅4～5 m.围坝挡水水头虽低,但出现渗透破坏的工程实例并不少见.纯化水库设计蓄水深度8.5 m,防渗安全问题尤为突出.为解决渗透问题,提出2种防渗方案:一是只对坝基做垂直铺塑防渗,二是坝体铺设复合土工膜与坝基垂直铺塑联合防渗.经比较,后一方案的出逸点高度、出逸坡降和单宽渗流量均低于前一方案.这表明坝体和坝基联合防渗具有较好的防渗效果,故将这一方案确定为纯化水库的防渗方案.同时对垂直铺塑距上游坝脚的距离进行了研究.多年渗流安全监测成果表明,纯化水库防渗效果良好. |
| 关键词: 黄河三角洲 平原水库 防渗系统 |
| DOI： |
| 分类号:TV62 |
| 基金项目: |
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| Optimization study on seepage control of Chunhua reservoir |
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YAN Tong-sheng
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YAN Tong-sheng(Water Supply Company of Shengli Petroleum Administrative Bureau,Dongying 257097,China)
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| Abstract: |
| Most of the reservoirs constructed in the Yellow River Delta alluvial plain,in general,have the water depth of 4~5 meters,but the destruction of their dams by seepage is not uncommon.However,Chunhua reservoir has a design storage depth of 8.5 meters,and its impermeable security is particularly prominent.This paper presents two anti-seepage solutions: A,vertical spreading plastics in dam foundation;and B,laying composite geomembrane at upstream slope and vertical plastics combined with underlying impermeable... |
| Key words: the Yellow River delta plain reservoir seepage |
