潘三矿1662(1)工作面保护层范围考察方案优化及问题分析
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摘要
针对潘三矿1662(1)保护层工作面角度达到20°以上、原考察的保护层有效保护范围已不适用、按照《防治煤与瓦斯突出规定》确定的理论保护范围与实际预计保护范围差别较大的问题,提出利用井下布置测试钻孔考察确定保护范围的方案。方案确定在预计保护范围内布置2组共14个钻孔、在原始煤体内布置2个钻孔,测试每个钻孔的瓦斯压力、含量、透气性、钻孔瓦斯流量等参数。考虑到测试钻孔较深影响测试结果,提出钻孔封孔要至见煤点,确保严密不漏气。
Aiming at the problems that the working face angle of 1662(1) protective layer in Pansan Mine is over 20 degrees,the effective protective scope of the original protective layer was no longer applicable,and the theoretical protective scope determined in accordance with the regulations for " Regulations on Prevention and Control of Coal and Gas Outburst" was quite different from the actual predicted protective scope. The protection scope scheme should be determined by the investigation of boreholes arranged underground was puts forward. The scheme determined that there were two groups of 14 boreholes in the predicted protection area and two boreholes in the original coal body. Each borehole tested gas pressure,content,permeability and gas flow rate of boreholes. Considering that the test boreholes have a deep influence on test results,it was proposed that the sealing of boreholes should be to the coal point to ensure tight gas leakage.
Aiming at the problems that the working face angle of 1662(1) protective layer in Pansan Mine is over 20 degrees,the effective protective scope of the original protective layer was no longer applicable,and the theoretical protective scope determined in accordance with the regulations for " Regulations on Prevention and Control of Coal and Gas Outburst" was quite different from the actual predicted protective scope. The protection scope scheme should be determined by the investigation of boreholes arranged underground was puts forward. The scheme determined that there were two groups of 14 boreholes in the predicted protection area and two boreholes in the original coal body. Each borehole tested gas pressure,content,permeability and gas flow rate of boreholes. Considering that the test boreholes have a deep influence on test results,it was proposed that the sealing of boreholes should be to the coal point to ensure tight gas leakage.
引文
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[15]袁瑞甫,魏晓,史博文.煤岩瓦斯复合型动力灾害预测及防治技术[J].中国科技成果,2017,19(1):42-43.Yuan Ruifu,Wei Xiao,Shi Bowen. Prediction and prevention techniques of coal rock gas compound dynamic disaster[J]. Chinese Scientific and Technological Achievements,2017,19(1):42-43.
[16]吴建亭.平顶山十矿下保护层开采上覆煤岩破裂变形规律.煤矿安全[J]. 2015,46(11):186-192.Wu Jianting. Fracture and deformation regularity of overlying coal rock in the lower protective layer of Pingdingshan No. 10 Mine[J]. Safety in Coal Mines,2015,46(11):186-192.
[17] Zheng Chunshan,Lin Baiquan. Analysis on the multi-phase flow characterization in cross-measure borehole during coal hydraulic slotting[J]. International Journal of Mining Science and Technology,2018,28(1):701-705.
[18]白子良,卫德俊.下保护层开采对上分层的效果分析[J].煤炭技术,2018,37(4):64-65.Bai Ziliang,Wei Dejun. Effect analysis of lower protective layer mining on upper layer[J]. Coal Technology,2018,37(4):64-65.
[19]于占昆.下保护层开采对上分层的效果分析[J].能源技术与管理,2018,43(1):26-28.Yu Zhankun. Analysis of the effect of mining of the lower protective layer on the upper layer[J]. Energy Technology and Management,2018,43(1):26-28.
[20]车路.近距离被保护层卸压瓦斯综合抽采技术的应用[J]内蒙古煤炭经济,2018,10(1):143-146.Che Lu. Application of comprehensive extraction technology for the discharge of compressed gas from the close-range protected layer[J]. Inner Mongolia Coal Economy,2018,10(1):143-146.
[2]徐东方,覃佐亚,旷裕光,等.近距离煤层群上保护层开采防突优化设计[J].煤炭技术,2018,37(11):183-185.Xu Dongfang,Qin Zuoya,Kuang Yuguang,et al. Application study on roof accident risk management system of coal mine[J]. Coal Technology,2018,37(11):183-185.
[3]徐青云,杨明,乔元栋,等.丁集矿下保护层开采卸压保护范围研究[J].煤炭工程,2016,48(2):79-82.Xu Qingyun,Yang Ming,Qiao Yuandong,et al. Study on the protection range of mining and unloading pressure under Dingji Mine protection layer[J]. Coal Engineering,2016,48(2):79-82.
[4]闻昆鹏,石必明.远距离下保护层的保护效果考察与分析[J].中国煤炭,2015,41(8):116-121.Wen Kunpeng,Shi Biming. Investigation and analysis of the protective effect of the protective layer at a long distance[J]. China Coal,2015,41(8):116-121.
[5]熊祖强.下保护层开采上覆岩层结构演化与瓦斯运移规律研究[D].徐州:中国矿业大学,2015.
[6]王岳刚.下保护层开采瓦斯治理技术研究[J].山东煤炭科技,2017,12(12):112-114.Wang Yuegang. Research on gas treatment technology under protective layer[J]. Shandong Coal Science and Technology,2017,12(12):112-114.
[7]李思乾.深井远距离上保护层开采卸压效果研究[J].煤矿安全,2018,49(10):179-182.Li Siqian. Study on the effect of mining and unloading of protective layer at a long distance in deep well[J]. Safety in Coal Mines,2018,49(10):179-182.
[8]徐铖辉,朱倩.近距离煤层群上保护层开采瓦斯治理研究[J].内蒙古煤炭经济,2018,12(19):66-68.Xu Chenghui,Zhu Qian. Study on gas treatment of protective layer mining on close coal seam group[J]. Inner Mongolia Coal Economy,2018,12(19):66-68.
[9]尹锡峰,石必明,张雷林,等.五轮山煤矿保护层开采效果考察研究[J].煤炭技术,2018,37(8):25-27.Yin Xifeng,Shi Biming,Zhang Leilin,et al. Investigation and study on the mining effect of Wulunshan Coal Mine protection layer[J].Coal Technology,2018,37(8):25-27.
[10]陈学习,刘志强.远距离上向长钻孔煤层膨胀变形测定装置及技术研究[J].华北科技学院学报,2018,19(1):1-5.Chen Xuexi,Liu Zhiqiang. Long drilling coal seam expansion deformation measurement device and technical research[J]. Journal of the North China Institute of Science and Technology,2018,19(1):1-5.
[11]赵亚军,朱欣鹏. FLAC3D模拟开采上保护层对被保护层影响[J].煤炭技术,2018,37(7):7-8.Zhao Yajun,Zhu Xinpeng. FLAC3Dsimulated mining on the protective layer impact on the protected layer[J]. Coal Technology,2018,37(7):7-8.
[12]周辉,郭一铭,刘伟,等.突出煤层保护层开采效果考察[J].煤炭技术,2018,37(9):238-240.Zhou Hui,Guo Yiming,Liu Wei,et al. Investigation of the mining effect of prominent coal seam protection layer[J]. Coal Technology,2018,37(9):238-240.
[13]左云飞.保护层开采与卸压瓦斯强化抽放技术研究[J].煤炭技术,2018,37(9):160-162.Zuo Yunfei. Research on strengthened extraction technology for protective layer mining and pressure relief gas[J]. Coal Technology,2018,37(9):160-162.
[14]孙乘育,涂庆毅.远距离上保护层开采被保护层应力时空演化规律研究[J].煤炭技术,2018,37(5):87-89.Sun Chengyu,Tu Qingyi. Study on the space-time evolution of stress in protected layer mining at long distances[J]. Coal Technology,2018,37(5):87-89.
[15]袁瑞甫,魏晓,史博文.煤岩瓦斯复合型动力灾害预测及防治技术[J].中国科技成果,2017,19(1):42-43.Yuan Ruifu,Wei Xiao,Shi Bowen. Prediction and prevention techniques of coal rock gas compound dynamic disaster[J]. Chinese Scientific and Technological Achievements,2017,19(1):42-43.
[16]吴建亭.平顶山十矿下保护层开采上覆煤岩破裂变形规律.煤矿安全[J]. 2015,46(11):186-192.Wu Jianting. Fracture and deformation regularity of overlying coal rock in the lower protective layer of Pingdingshan No. 10 Mine[J]. Safety in Coal Mines,2015,46(11):186-192.
[17] Zheng Chunshan,Lin Baiquan. Analysis on the multi-phase flow characterization in cross-measure borehole during coal hydraulic slotting[J]. International Journal of Mining Science and Technology,2018,28(1):701-705.
[18]白子良,卫德俊.下保护层开采对上分层的效果分析[J].煤炭技术,2018,37(4):64-65.Bai Ziliang,Wei Dejun. Effect analysis of lower protective layer mining on upper layer[J]. Coal Technology,2018,37(4):64-65.
[19]于占昆.下保护层开采对上分层的效果分析[J].能源技术与管理,2018,43(1):26-28.Yu Zhankun. Analysis of the effect of mining of the lower protective layer on the upper layer[J]. Energy Technology and Management,2018,43(1):26-28.
[20]车路.近距离被保护层卸压瓦斯综合抽采技术的应用[J]内蒙古煤炭经济,2018,10(1):143-146.Che Lu. Application of comprehensive extraction technology for the discharge of compressed gas from the close-range protected layer[J]. Inner Mongolia Coal Economy,2018,10(1):143-146.
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