某长大铁路隧道岩溶区段注浆堵水施工

某长大铁路隧道岩溶区段注浆堵水施工

摘要：介绍了龙厦铁路某长大隧道的复杂岩溶区段的注浆堵水施工技术，首先采用止浆塞的快速堵水并顶水注浆、减少水土流失、控制掌子面稳定，然后对前方施做详细超前探测，后对岩溶区段帷幕注浆堵水等措施加固围岩，在施工过程中并对注浆设备进行匹配选择，确保复杂岩溶区段的顺利安全施工。

abstract: the article is introduction about the grouting construction technology in the long sha tunnel under the complex karsts section.: firstly to use the pulp plug fast plugging and top grouting of water, reduce soil erosion, control the tunnel face stability, and then detect the front side in thorough advanced way, lastly take measures to reinforce wall rock by grouting water in curtain karsts section though equipment selection match to ensure the smooth and safe construction. 关键词岩溶；注浆堵水；施工

key words: karsts, grouting, construction

中图分类号：tu74文献标识码：a文章编号：2095-2104（2011）12-0000--00 1工程概况

龙厦铁路某长大隧道位于闽西龙岩、漳州境内，采用左右单洞单线，两条隧道并行的方案，左线隧道全长15898m，右线隧道全长

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