CAJ | 학술논문

为解决潘一东矿深井低透气性高瓦斯煤层瓦斯抽采率低的问题，提出了运用深孔预裂爆破技术提高煤层透气性，进行瓦斯预抽，进而提高瓦斯抽采率，降低煤层突出危险性的方法。通过数值模拟阐述了深孔预裂爆破技术的作用机理，并对潘一东矿应用效果进行了现场考察。研究表明：在低透气性煤层实施深孔预裂爆破技术后，煤层透气性得以提高，平均瓦斯抽采量提高了3倍，有效地提高了瓦斯抽采率，降低了煤体瓦斯压力和含量，从而在一定程度上降低了煤与瓦斯突出的危险性。
위해결반일동광심정저투기성고와사매층와사추채솔저적문제，제출료운용심공예렬폭파기술제고매층투기성，진행와사예추，진이제고와사추채솔，강저매층돌출위험성적방법。통과수치모의천술료심공예렬폭파기술적작용궤리，병대반일동광응용효과진행료현장고찰。연구표명：재저투기성매층실시심공예렬폭파기술후，매층투기성득이제고，평균와사추채량제고료3배，유효지제고료와사추채솔，강저료매체와사압력화함량，종이재일정정도상강저료매여와사돌출적위험성。
In order to solve the problem of low gas extraction rate at the low permeability and high gas seam in east-ern area of Panyi deep well mine , the approach of using deep hole pre-splitting blasting technology was presented to increase the coal seam permeability , then improve the gas extraction rate , and lessen outburst danger of coal seam . The mechanism of deep hole pre-splitting blasting technology was briefly described , and the effect of permeability was studied .The research shows that compared with before blasting , the average gas extraction volume by deep hole pre-splitting blasting increased by 3 times, and it improved the gas extraction rate effectively , reduced the coal gas pressure and the content , and lessened the danger of coal and gas outburst to a certain extent .