东曲煤矿工作面超前支承压力分布规律研究  

Study on Pilot Roof Support Pressure Distribution Law of Coal Mining Face in Dongqu Mine

作　　者：薛诚[1] 赵建峰[1] 王港胜[1] 

机构地区：[1]中国矿业大学应用技术学院,江苏徐州221008

出　　处：《煤炭科学技术》2011年第6期9-11,共3页Coal Science and Technology

摘　　要：基于回采工作面超前支承压力对冲击地压、煤与瓦斯突出等现象有直接影响,结合东曲煤矿14305工作面的开采条件,通过理论计算及采用UDEC2D4.0数值模拟,对该工作面超前支承压力的分布规律进行研究,同时对现场实测超前支承压力数据进行统计分析,得出了超前支承压力的分布规律。14305工作面超前支承压力的影响范围约为35 m,超前支承压力峰值约为16 MPa,并距工作面8~10 m,应力集中系数约为2.2,可为东曲煤矿煤柱宽度、工作面支护参数设计提供技术支持。Due to the pilot roof support pressure of the coal mining face had a direct influences to the mine pressure bumping,the coal and gas outburst and other phenomenon,in combination with the mining conditions of No.14305 coal mining face in Dongqu Mine,the theoretical calculation and the UDEC2D4.0 numerical simulation was applied to study the distribution law of the pilot roof support pressure in the coal mining face.Meanwhile the statistic analysis was conducted on the pilot roof support pressure data measured at the site and the distribution law of the pilot roof support pressure was obtained.The influence scope of the pilot roof support pressure in No.14305 coal mining face was about 35 m,the peak value of the pilot roof support pressure was about 16 MPa,the pilot distance to the coal mining face was 8~10 m and the stress concentration coefficient was about 2.2,which could provide the technical support to the design of the coal pillar height and the face support parameters in Dongqu Mine.

关 键 词：综采工作面 超前压力 数值模拟 UDEC2D4.0 

分 类 号：TD323[矿业工程—矿井建设]