冲击地压危险性预评价与实践
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摘要
基于采动高集中应力对冲击地压的显著影响作用,采用有限差分数值方法对开采区域分采区、工作面以及巷道,进行了冲击危险区域划分;利用弹性基础梁"见方"理论划分得出,21141工作面回采过程中将经历七个危险时期,其中第六危险期为特别危险期。在危险区域、危险时期划分基础上,进行了冲击地压监测与防治实践,实践表明,对冲击地压煤层预先进行冲击危险区域、危险时期划分,有效指导了回采期间冲击地压监测与防治工作。
Base on the mining dynamic high concentrated stress obviously affected to the mine pressure bumping,the finite difference numerical method was applied to divide the mine pressure bumping dangerous area for the mining area,coal mining face and gateway in the mining region.The plastic basic beam "square" theory was applied to divide and obtain the seven dangerous periods occurred during No.21141 coal mining process and the sixth dangerous period would be special dangerous period.Base on the dividing of the dangerous region and the dangerous period,the mine pressure bumping monitoring and measuring as well as the prevention and control practices were conducted.The practices showed that the dividing of the mine pressure bumping dangerous region and the dangerous period for the pressure bumping seam could be effectively to guide the monitoring and measuring as well as the prevention and control of the mine pressure bumping.
Base on the mining dynamic high concentrated stress obviously affected to the mine pressure bumping,the finite difference numerical method was applied to divide the mine pressure bumping dangerous area for the mining area,coal mining face and gateway in the mining region.The plastic basic beam "square" theory was applied to divide and obtain the seven dangerous periods occurred during No.21141 coal mining process and the sixth dangerous period would be special dangerous period.Base on the dividing of the dangerous region and the dangerous period,the mine pressure bumping monitoring and measuring as well as the prevention and control practices were conducted.The practices showed that the dividing of the mine pressure bumping dangerous region and the dangerous period for the pressure bumping seam could be effectively to guide the monitoring and measuring as well as the prevention and control of the mine pressure bumping.
引文
[1]邹德蕴,姜福兴.煤岩体中储存能量与冲击地压孕育机理及预测方法的研究[J].煤炭学报,2004,29(2):159～163.
[2]逄焕东,姜福兴,张兴民.微地震监测技术在矿井灾害防治中的应用[J].金属矿山,2004,(12):58～61.
[3]唐巨鹏,潘一山,徐方军.根据地表下沉预测冲击地压的研究[J].矿山压力与顶板管理,2002,(3):107～110.
[4]万志军,朱传章,朱世学.用统计推理改进煤矿冲击地压危险性评价[J].世界采矿快报,1999,(7):19～20.
[5]毛德兵.冲击矿压发生危险性评价方法[J].煤矿开采,2000,(12):52～53.
[6]尹光志,鲜学福,金立平,刘成明.地应力对冲击地压的影响及冲击危险区域评价的研究[J].煤炭学报,1997,(4):132～137.
[2]逄焕东,姜福兴,张兴民.微地震监测技术在矿井灾害防治中的应用[J].金属矿山,2004,(12):58～61.
[3]唐巨鹏,潘一山,徐方军.根据地表下沉预测冲击地压的研究[J].矿山压力与顶板管理,2002,(3):107～110.
[4]万志军,朱传章,朱世学.用统计推理改进煤矿冲击地压危险性评价[J].世界采矿快报,1999,(7):19～20.
[5]毛德兵.冲击矿压发生危险性评价方法[J].煤矿开采,2000,(12):52～53.
[6]尹光志,鲜学福,金立平,刘成明.地应力对冲击地压的影响及冲击危险区域评价的研究[J].煤炭学报,1997,(4):132～137.
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