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贵州盘江精煤股份有限公司土城矿141713工作面从2009年6月开始掘进,到2012年4月回采结束,历经近三年的时间,瓦斯治理工作在采面安全回采过程中发挥了重要作用。土城矿在确定提前抽放临近煤层进行瓦斯泄压的大抽放格局后,不仅有效保证了采面的正常生产,而且使141713工作面上覆的12#、13#、15#、16#以及下伏的18#煤层的瓦斯得到了提前释放,至少在三年内这些煤层掘进和回采时不会遇到较大的瓦斯治理难题,为矿井的安全发展提供了有力保障。在土城矿,治理一个工作面瓦斯的同时解放临近煤层瓦斯的做法尚属首次。141713工作面在掘进初期就依照先抽后掘
Guizhou Panjiang Coal Co., Ltd. 141713 face of Tucheng mining started from June 2009 to April 2012 to the end of mining, after nearly three years, gas control work in the safe mining face played an important effect. After determining the large drainage pattern in which the coal seam is drained in advance for gas pressure relief, the Tucheng Mine not only effectively ensures the normal production of the mining face, but also ensures that the 12 #, 13 #, 15 #, 16 # And the underlying gas in seam # 18 have been released in advance. At least for three years, they will not encounter large gas treatment problems during tunneling and recovery and provide a powerful guarantee for the safe development of the mine. For the first time in Tucheng Mine, it is the first time to control the gas in a coalface at the same time as liberating the coal gas nearby. 141713 Face in the early excavation in accordance with the first pumping and digging