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大河边煤矿系高沼气并有煤和瓦斯突出危险的矿井(根据相邻矿井11、13层曾发生过突出,故大河边矿11、13层亦按突出层管理)。在投产以来的生产实践中,用开采解放层结合抽放瓦斯,以保证解放层的安全生产和卸压作用的深化而扩大解放作用是一项综合性措施。因而对防止煤和瓦斯突出,改善通风条件,保证矿井安全生产起到了重要作用。一、矿井概况大河边煤矿系1966年开始建设,1970年局部投产,设计生产能力为60万吨的中型矿
The Dahebian coal mine is characterized by high biogas and dangerous coal and gas outburst (according to the fact that the 11th and 13th floors of adjacent mines have been highlighted, so that the 11th and 13th floors of Daheian Mine are also managed according to the outburst level). In the production practice since the commencement of production, it is a comprehensive measure to expand the liberation by combining the exploitation of the liberated layer with the drainage of gas to ensure the safe production and relief of the liberated strata. Therefore, it has played an important role in preventing coal and gas outburst, improving ventilation conditions and ensuring mine safety in production. First, the mine profile Large riverside coal mine started construction in 1966, partially put into operation in 1970, designed production capacity of 60 million tons of medium-sized mine