徐啸川,徐光黎,魏文豪,李溢渊,薛媛

• 1:中国地质大学(武汉)工程学院

摘要(Abstract)：

以宜来高速湾潭隧道为研究对象，通过现场调查、地下水示踪实验、地下水流量监测，以及采用大气降雨入渗法计算隧道的平均涌水量和丰水期涌水量，同时采用RFPA渗流软件对隧道涌突水的可能性进行判别。现场调查及示踪试验结果显示湾潭隧道岩溶管道为多支，混合型岩溶管道，水文地质条件复杂，丰水期涌水量约为平均隧道涌水量的4.6倍。数值模拟结果表明，隧道涌水突泥破坏要历经裂隙萌生、裂隙扩展、裂隙进一步扩展、贯通破坏阶段。同时当岩溶管道处的过水流量达到初始值(37 248 m~3/d)约2.7～3.5倍之间时便可出现涌水突泥破坏，也即出水口2流量达到10 000～13 000 m~3/d时，湾潭隧道具有极高的涌水突泥风险。

关键词(KeyWords)： 宜来高速;示踪试验;大气降雨入渗法;岩溶管道;涌水突泥

Abstract:

Keywords:

基金项目(Foundation): 宜都至来凤高速公路(宜昌段)岩溶水文地质专项调查项目(2020K06-1)

作者(Author): 徐啸川,徐光黎,魏文豪,李溢渊,薛媛

DOI: 10.19509/j.cnki.dzkq.2022.0141

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