铁路煤柱影响区域冲击地压综合防治技术  

Comprehensive Prevention and Control Technology of Mine Pressure Bumping from Coal Pillar Region Under Surface Railway Line

作　　者：张显峰[1] 赵启峰[2] 王玉怀[2] 顾亮[1] 

机构地区：[1]开滦(集团)有限责任公司,河北唐山063018 [2]华北科技学院安全工程学院,北京101601

出　　处：《煤炭科学技术》2011年第9期9-12,16,共5页Coal Science and Technology

摘　　要：为了对开采铁路下煤柱的冲击危险进行有效控制,分析了唐山矿5号煤层的冲击倾向性,得出了该矿特定地质条件下冲击矿压发生机理,提出了"开采设计规避冲击、采前卸压防范冲击、回采期间预测预报及综合防治"为一体的冲击矿压动态防治技术体系。现场实施过程中,巷道布置、支护设计预先考虑防冲效果;掘进期间采用钻屑法圈定重点防治部位,继而采用煤体预注水、煤体爆破卸压等措施弱化煤体;回采期间,超前10～50 m采用钻屑法动态评估冲击危险程度,适时进行卸压爆破,通过综合防冲措施有效地降低了冲击危险性,保证了工作面安全高效回采。In order to effectively control the mine pressure bumping danger occurred from the coal pillars under the railway line at the surface ground,the mine pressure bumping tendency from No.5 seam in Tangshan Mine was analyzed,the mechanism of the mine pressure bumping occurred under the special geological conditions of the mine was obtained and a dynamic prevention and control technology system of the mine pressure bumping integrated with ＂the mining design with avoiding mine pressure bumping,the mine pressure releasing before the mining to prevent the mine pressure bumping,the prediction and pre-warning during the mining period and the comprehensive prevention and control＂ was provided.During the implementation process,the layout and support design ould pre-consider the mine pressure bumping prevention effect.During the seam gateway driving period,the drilling cutting method would be applied to set up the key prevention and control location and then the water pre-injection in seam,in seam blasting and pressure releasing and other measures would be applied to weak the seam.During the mining period,the drilling cuttings method in advance of 10~50 m was applied to the dynamic evaluation on the mine pressure bumping danger degree which could guide to conduct a pressure releasing blasting on time.The practices showed that the comprehensive mine pressure bumping prevention measures could be effective to reduce the mine pressure bumping danger to ensure the safety and efficient mining of the coal face.

关 键 词：冲击矿压 煤柱区域 动态防治 监测预报 冲击危险性煤层 

分 类 号：TD324[矿业工程—矿井建设]