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由于顿巴斯中央矿区的复杂地质构造及向更深部进行开采,势必增加煤层的突击危险性。超前开采保护层是予防煤及瓦斯突出危险的最有效措施,这是毫无疑义的。在被开采的煤层群中,含盐层1_5,班点砂岩m_4~0,新层m_6~2及巴巴科夫斯基层h_(10)等均是保护层。但是,当其深度达800—900米或更深时,很容易出现震动、冲击或冲击地压。为了防止在这些矿层内产生冲击地压的动力现
Due to the complex geological formations of the central Donburi mining area and its exploitation to deeper levels, it is bound to increase the danger of surprise attack on the coal seam. There is no doubt that mining the protective layer ahead of time is the most effective measure to prevent the danger of coal and gas outbursts. Among the coal seams that are mined, the salt layer 1_5, the punctate sandstone m_4 ~ 0, the new layer m_6 ~ 2 and the Babakovsky basement h_ (10) are the protective layers. However, vibrations, shocks or rockbursts can easily occur at depths of 800-900 meters or more. In order to prevent the impact of these underground pressure generated in the dynamic now