新集二矿210108工作面试采期瓦斯治理技术

Study on gas control technology in the period of production test of 210108 mining face

为探求淮南区域1煤层瓦斯治理技术,对新集二矿1煤层首采工作面采取了不同的瓦斯治理手段,通过分析比较工作面回采期间风排瓦斯、底板巷高负压抽采瓦斯、高抽巷抽采瓦斯、风机巷顺层孔抽采瓦斯以及采空区埋管抽采瓦斯,初步得到用于新集二矿1煤层瓦斯治理有效的技术手段,为以后1煤层的安全开采提供参考。

According to the characteristics of the refuge chamber, the grey relational analysis （GRA） and analytic hierarchy process （AHP） was used to assess its safety. First, the relative weights of evaluation factors were determined by using AHP method, then, the mathematical model of refuge chamber safety assessment was established by means of fuzzy and grey system theory. This method overcomes the existing problems of traditional safety assessment method and can obtain the safety assessment results quickly and accurately.