【摘 要】
：
苏南某电厂江底取水隧道在掘进时发生沼气喷溢引起承压水携带泥沙涌入,隧道修复过程中需要防止承压水再次突涌,而能否通过管井降低长江水体下巨厚的承压含水层水位引起了巨大
【机 构】
：
安徽省地矿局第一水文工程地质勘查院,安徽水文地质工程地质公司,中铁十四局大盾构工程有限公司
论文部分内容阅读
苏南某电厂江底取水隧道在掘进时发生沼气喷溢引起承压水携带泥沙涌入,隧道修复过程中需要防止承压水再次突涌,而能否通过管井降低长江水体下巨厚的承压含水层水位引起了巨大的争议。本文结合水文地质条件分析及现场抽水试验,查明目的含水层与江水及下部巨厚承压含水层之间的水力联系,得到了各层的水文地质参数,提供了可靠的降水方案,并对沉降变形进行了预测分析,解决了水上降水管井施工等一系列难题,对类似工程具有重要的借鉴意义。
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