深部高瓦斯煤层大巷揭煤区域防突技术
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摘要
针对顾北矿南翼轨道大巷揭煤问题进行了区域性防突技术与应用研究。首先由巷道掘进工作面向前方钻孔,探测工作面前方煤岩体赋存情况;其次通过监测瓦斯压力和瓦斯含量及煤体强度的方法对煤体的突出危险性进行了预测,确定了巷道工作面前方煤体为突出煤体;提出了地面与井下联合洗煤的区域防突技术,对顾北矿南翼轨道大巷进行了消突,并对区域消突效果进行了检验,最终顺利实施了大巷揭煤。研究结果表明,地面和井下联合洗煤区域防突技术,有效地防止了煤与瓦斯突出现象的发生,具有较高的社会效益和推广应用价值。
Aiming at the coal uncovering problems in south wing main rail-tunnel of Gubei Coal Mine,regional outburst prevention technology and application research are carried out. Firstly,boreholes are drilled in front of the roadway to detect the occurrence of coal and rock mass in front of the roadway. Secondly,the risk of coal body outburst is predicted by monitoring gas pressure,gas content and coal strength. The coal body in front of the roadway is determined to be outburst coal body. The regional outburst prevention technology of combined surface-underground water-pressure coal body weakening is put forward,which is used for rail-tunnel and return air way. The outburst elimination of roadway is carried out,and the effect of regional outburst elimination is tested. Finally,the roadway coal uncovering was successfully implemented. The coal and gas outburst is prevented with the regional outburst prevention technology using the combined surface-underground water-pressure coal body weakening. The technology can provide research basis for similar engineering problems,high social benefits and application value.
Aiming at the coal uncovering problems in south wing main rail-tunnel of Gubei Coal Mine,regional outburst prevention technology and application research are carried out. Firstly,boreholes are drilled in front of the roadway to detect the occurrence of coal and rock mass in front of the roadway. Secondly,the risk of coal body outburst is predicted by monitoring gas pressure,gas content and coal strength. The coal body in front of the roadway is determined to be outburst coal body. The regional outburst prevention technology of combined surface-underground water-pressure coal body weakening is put forward,which is used for rail-tunnel and return air way. The outburst elimination of roadway is carried out,and the effect of regional outburst elimination is tested. Finally,the roadway coal uncovering was successfully implemented. The coal and gas outburst is prevented with the regional outburst prevention technology using the combined surface-underground water-pressure coal body weakening. The technology can provide research basis for similar engineering problems,high social benefits and application value.
引文
[1]袁亮.我国深部煤与瓦斯共采战略思考[J].煤炭学报,2016,41(1):1-6.
[2]袁亮,姜耀东,何学秋,等.煤矿典型动力灾害风险精准判识及监控预警关键技术研究进展[J].煤炭学报,2018,43(2):306-318.
[3]李术才,李清川,王汉鹏,等.大型真三维煤与瓦斯突出定量物理模拟试验系统研发[J].煤炭学报,2018,43(S1):121-129.
[4]周伟,袁亮,张国亮,等.采空区瓦斯涌出来源量化判识方法———以寺河矿为例[J].煤炭学报,2018,43(4):1016-1023.
[5]赵志强,靳俊晓,申金超.石门揭煤中煤体塑性区跃迁特征与诱突机制[J].岩石力学与工程学报,2019,38(2):343-352.
[6]李文树,周东平,郭臣业,等.大断面瓦斯隧道“五步法”预测揭煤技术应用研究[J].地下空间与工程学报,2019,15(1):262-268.
[7]赵涛.常村煤矿石门揭煤过程中突出煤层围岩力学响应模拟研究[J].矿业安全与环保,2018,45(6):32-36.
[8]苏伟伟.石门揭煤区液态CO2致裂增透加速消突技术[J].煤矿安全,2019(2):144-147,151.
[9]胡杰.声发射预测技术在石门揭煤过程中的应用与效果分析[J].矿业安全与环保,2018,45(6):37-42.
[10]谢洪波.立井深孔爆破强化抽采快速揭煤技术[J].能源技术与管理,2019,44(1):29-30.
[11]许石青,孙威,王明仲,等.二氧化碳致裂技术在金佳煤矿212运输石门揭煤过程中的应用[J].矿业安全与环保,2018,45(6):57-60.
[12]吴永建,邓华易,冯康武,等.隧道揭煤区域预测钻孔控制范围研究及应用[J].能源与环保,2018,40(10):29-32,37.
[13]王文玉,刘震,杨赫.石门揭煤区域防突钻孔优化设计[J].矿业安全与环保,2018,45(5):87-90,95.
[2]袁亮,姜耀东,何学秋,等.煤矿典型动力灾害风险精准判识及监控预警关键技术研究进展[J].煤炭学报,2018,43(2):306-318.
[3]李术才,李清川,王汉鹏,等.大型真三维煤与瓦斯突出定量物理模拟试验系统研发[J].煤炭学报,2018,43(S1):121-129.
[4]周伟,袁亮,张国亮,等.采空区瓦斯涌出来源量化判识方法———以寺河矿为例[J].煤炭学报,2018,43(4):1016-1023.
[5]赵志强,靳俊晓,申金超.石门揭煤中煤体塑性区跃迁特征与诱突机制[J].岩石力学与工程学报,2019,38(2):343-352.
[6]李文树,周东平,郭臣业,等.大断面瓦斯隧道“五步法”预测揭煤技术应用研究[J].地下空间与工程学报,2019,15(1):262-268.
[7]赵涛.常村煤矿石门揭煤过程中突出煤层围岩力学响应模拟研究[J].矿业安全与环保,2018,45(6):32-36.
[8]苏伟伟.石门揭煤区液态CO2致裂增透加速消突技术[J].煤矿安全,2019(2):144-147,151.
[9]胡杰.声发射预测技术在石门揭煤过程中的应用与效果分析[J].矿业安全与环保,2018,45(6):37-42.
[10]谢洪波.立井深孔爆破强化抽采快速揭煤技术[J].能源技术与管理,2019,44(1):29-30.
[11]许石青,孙威,王明仲,等.二氧化碳致裂技术在金佳煤矿212运输石门揭煤过程中的应用[J].矿业安全与环保,2018,45(6):57-60.
[12]吴永建,邓华易,冯康武,等.隧道揭煤区域预测钻孔控制范围研究及应用[J].能源与环保,2018,40(10):29-32,37.
[13]王文玉,刘震,杨赫.石门揭煤区域防突钻孔优化设计[J].矿业安全与环保,2018,45(5):87-90,95.