山西襄矿集团上良煤业32206工作面 CO2预裂爆破增透消突试验研究

摘要

Shangliang coal is a mine of coal and gas outburst, its coal seam is of low permeability. For the gas extraction problem of low permeability of coal seam in Shangliang coal, taking its 32206 first mining face as the test face and with the application of CO2 presplitting blasting antireflection technology, the permeability of coal seam and gas drainage rate are improved, the coal bed gas content and gas pressure are reduced, and the outburst danger of coal seam of working face is eliminated, which is of significant technical effect and provides reference for similar coal mine gas drainage.%上良煤业是煤与瓦斯突出矿井，煤层属于低透气性煤层。针对上良煤业低透气性煤层瓦斯抽采难题，以该矿32206首采工作面为试验工作面，应用 CO2预裂爆破增透技术，提高了煤层的透气性及瓦斯抽采率，降低了煤层瓦斯含量和瓦斯压力，消除了工作面煤层的突出危险性，技术效果显著，可为类似煤矿煤层瓦斯抽采提供借鉴。