摘要
影响超前支承压力峰值位置的因素很多,采厚是影响峰值位置的一个重要因素,为分析综放工作面采厚对超前支承压力峰值位置的影响,以河林煤矿j7401综放工作面为研究对象,通过现场实测和理论分析,研究综放工作面采厚与超前支承压力峰值位置的关系,并得出结论:当采厚相同时,超前支承压力峰值位置基本相同;当采厚增加时,超前支承压力位置与工作面煤壁距离变大。该研究可用于预测不同采厚时超前支承压力峰值位置,对巷道维护和支护方案选择具有很好的指导作用和借鉴意义。
There are many factors affecting the peak position of advance bearing pressure,and the mining thickness is an important factor.In order to analyze the influence of mining thickness on the peak position of advance bearing pressure in fully mechanized top caving face,No.j7401Face in Helin Mine was taken as the research object.Through field measurement and theoretical analysis,the relationship between mining thickness and peak position of advance abutment pressure in fully mechanized top caving face was deeply studied.The results showed that when the mining thickness was the same,the peak position of advance bearing pressure was basically the same;When the mining thickness increased,the distance between the position of advance bearing pressure and the coal wall of the working face increased.The research conclusion of this paper could be used to predict the peak position of advance bearing pressure under different mining thickness,and there was a good guiding role and reference significance for roadway maintenance and support scheme selection.
作者
李志强
苏礼
李洋
Li Zhiqiang;Su Li;Li Yang(Sanyuan Grottoes Coal Industry Co.,Ltd Jinneng Holding Coal Industry Group,Changzhi 046000,China;North China Institute of Science and Technology,Beijing 101601,China)
出处
《煤炭与化工》
CAS
2022年第3期32-34,37,40,共5页
Coal and Chemical Industry
基金
国家自然科学基金资助(51804117)。
关键词
超前支承压力
综放开采
采厚
峰值位置
advancing abutment pressure
fully-mechanical caving mining
mining thickness
peak position
