高压富水岩溶地层隧道施工技术

Technology of High Pressure Water-rich Karst Formations Tunnel Construction

我国疆土辽阔,自然环境特征各不一样,我国西南地区的地质环境相对较为复杂。这是因为我国西南地区的地貌主要水岩溶层、喀斯特地貌等等,这种地貌环境下容易造成滑坡和泥石流现象,不利于隧道挖掘工作的进行。水岩溶地层结构比较复杂,其特性主要体现在高水压、水量丰富、水岩溶洞多一级断层等等,所以在高压富水岩溶地层隧道施工过程中应当紧密结合本地的实际情况,选择适当的施工技术。在地层隧道施工过程中,极度容易引发地下隧道灌水的现象,同时也会出现涌泥、涌砂的现象。在高压富水岩溶地层隧道施工中,会因为水岩溶地层自身的复杂性、多变性和不确定性导致整体的隧道施工精确性相对较低。当前在世界范围内,水岩溶地层隧道施工存在的难题是世界存在的共性问题。本篇文章将结合实际的隧道施工工程情况,分析高压富水岩溶地层隧道施工的基本情况、高压富水岩溶地层隧道施工问题的相关处理方式以及高风险岩溶隧道综合超前地质预报的体会。

Our territory is vast, natural environmental features not the same geological environment in southwest China is relatively complex.This is because the karst landforms major water in Southwest China, karst etc.In this geomorphic environment likely to cause landslides and mudslides, which is not conducive to the work of the tunnel excavation.Karst formations more complex structure, its properties mainly in high-pressure, water-rich, multi-level water caverns fault, etc.Therefore, the high-pressure water- rich karst formations tunnel construction process should be closely combined with local conditions, select the appropriate construction technology.During the construction process stratum tunnel, extremely easy to cause the phenomenon of underground irrigation tunnels, while Chung mud, sand Chung phenomenon will appear.High Water in tunnel construction in karst formations, karst formations because of the water of the complexity, variability and uncertainty resulting in a relatively low overall accuracy of tunnel construction. Currently in the world, water karst formations tunnel construction problems that exist in the world is the existence of common problems. This article will combine the actual tunnel construction project, analyzed the basic situation of high pressure water-rich karst formations tunnel construction, water treatment experience related to karst formations tunnel construction problems and high risk karst tunnel geological prediction of high pressure rich.