CAJ | 학술논문

在重庆松藻矿区开采的保护层中,均有煤与瓦斯突出风险.在瓦斯治理时,采取的技术措施是通过本层抽采钻孔,但矿区内的多数保护层煤层薄且松软、硬度小、透气差、瓦斯含量高,在本层钻孔抽采治理瓦斯时,钻孔因煤层松软,极易发生钻孔塌孔,造成钻孔堵塞,瓦斯抽采效果差.2013年,在松藻矿区的渝阳煤矿的N3702采煤工作面尝试采取了埋设筛管护孔这一措施来抽采、治理瓦斯,取得了较好的抽采效果.
재중경송조광구개채적보호층중,균유매여와사돌출풍험.재와사치리시,채취적기술조시시통과본층추채찬공,단광구내적다수보호층매층박차송연、경도소、투기차、와사함량고,재본층찬공추채치리와사시,찬공인매층송연,겁역발생찬공탑공,조성찬공도새,와사추채효과차.2013년,재송조광구적투양매광적N3702채매공작면상시채취료매설사관호공저일조시래추채、치리와사,취득료교호적추채효과.
The risk of coal and gas outburst in the protective layer of the Chongqing Songzao Mining Area. In the gas treatment, the technical measures adopted is to adopt the coal mining, but the majority of protective seam in the mine is thin and soft, small, small, high permeability, gas content. In this layer, the drilling and drainage management of gas, the drilling due to the soft coal seam, prone to hole collapse, resulting in the hole blockage, gas drainage effect is poor. In 2013, in N3702 coalface of Yuyang Coal Mine, Songzao Mining Area, attempted to take buried screen hole protecting the measures to smoke production, gas control, and achieved good drainage effect.