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在我们所承担的矿山开采设计任务中,无论是国内还是国外矿山,都曾遇到一些矿床位于当地侵蚀基准面以上的山地斜坡上。采用平硐开拓常常是这类矿床的主要开拓方式,在建设和生产过程中可利用运输平硐将矿坑水自流排出坑外。因此,一般说来这类矿床排水设施简单,费用很低,而且生产亦较安全。然而,在一定的气候和水文地质条件下,仍有可能造成坑道大量充水,给生产带来一定程度的影响,甚至有可能造成矿山停工停产。所以矿山开采设计工作过程中仍然需要充分研究这类矿床的水文地质条件,正确预测坑道涌水量以便为合理的设计排水沟断面和矿坑防洪措施提供比较可靠的依据。本文拟就笔者在设计实践中的
In our quarrying design task undertaken by mine, both domestic and foreign mines have encountered some mountain slopes with deposits above the local erosion datum. The use of adit development is often the main way to open up such deposits. During the process of construction and production, the adit can be used to transport the pit water out of the pit by gravity. As a result, drainage facilities of this type are generally simple, inexpensive and safe to produce. However, under certain climatic and hydrogeological conditions, it is still possible to cause a large amount of water in the tunnel, which will affect the production to a certain extent and may even cause the mine to stop production and stop production. Therefore, the mining design work still need to fully study the hydrogeological conditions of these deposits, and correctly forecast the amount of water in the tunnel in order to provide a reasonable basis for the design of drainage ditch sections and pit flood control measures to provide a more reliable basis. This article intended to author in the design practice