可溶岩区隧洞岩溶涌突水防治对策研究

发布时间：2018-01-29 13:28

本文关键词： 隧洞施工隧洞涌突水岩溶涌水量应急处理超前地质预报　出处：《人民长江》2017年14期 　论文类型：期刊论文

【摘要】：隧洞涌突水是隧洞施工过程中的一个重要岩溶水文地质问题,特别是隧洞在可溶岩径流区附近穿越时,其涌突水问题可能将是制约性工程问题。隧洞遭遇严重涌突水,直接影响工程施工,对工程本身形成一定程度制约因素,此类问题影响工期、造价等,严重时影响工程的成立与否。通过研究适宜的防治对策,对隧洞施工过程中涌突水灾害,坚持"预防为主,防治结合"、"有疑必探,先探后掘"的方针,采取"探、放、堵、截、排"综合措施。立足于采取主动措施,防范于未然,同时提前拟定处理预案,以应不时之需。
[Abstract]:Tunnel water inrush is an important karst hydrogeological problem in the course of tunnel construction, especially when the tunnel passes through near the run-off area of soluble rock. The problem of water inrush may be a constraint engineering problem. The tunnel encountered serious water inrush, which directly affects the construction of the project, which has a certain degree of constraints on the project itself, such problems affect the duration of the project, cost and so on. In serious cases, the establishment of the project is affected or not. Through the study of appropriate prevention and control countermeasures, the principle of "prevention as the main, prevention combined" and "probing first and then digging" is adhered to in the course of tunnel construction. Take comprehensive measures of "probing, releasing, blocking, intercepting, and discharging". Based on taking active measures, take precautions against them, at the same time, draw up and deal with the plan in advance so as to meet the need of time.
【作者单位】：云南省水利水电勘测设计研究院;
【分类号】：TV554
【正文快照】： 1 研究背景岩溶涌突水是指隧洞开挖过程中,由于岩溶发育而形成的地下水集中或分散的出流现象。岩溶涌突水是隧洞工程建设中经常遇到的现象,与一般岩体裂隙性涌突水比较,具有以下特点:(1)岩溶涌突水发生的部位具有很大的不均一性,主要是由于岩溶发育的不均一性所致;(2)岩溶涌

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