浅埋煤层工作面回采巷道支护设计及参数优化  

Supporting design and parameter optimization of mining roadway in shallow buried coal seam working face

作　　者：初风蛟 褚居涛 董飞 王梦成 张中原 樊昱璋 孙利辉 CHU Fengjiao;CHU Jutao;DONG Fei;WANG Mengcheng;ZHANG Zhongyuan;FAN Yuzhang;SUN Lihui(Qianjiaying Mining Branch of Kailuan Group,Tangshan 063301,China;School of Mining and Surveying and Geomatics Engineering,Hebei University of Engineering,Handan 056038,China;Changcun Coal Mine,Shanxi Lu′an Environmental Energy Development Co.,Ltd.,Changzhi 046000,China)

机构地区：[1]开滦集团钱家营矿业分公司,河北唐山063301 [2]河北工程大学矿业与测绘工程学院,河北邯郸056038 [3]山西潞安环保能源开发股份有限公司常村煤矿,山西长治046000

出　　处：《煤炭科技》2024年第3期88-92,98,共6页Coal Science & Technology Magazine

基　　金：国家自然科学基金(52074100);“科技兴蒙”重点专项基金(2022EEDSKJXM009-2)。

摘　　要：针对浅埋煤层支护强度不合理的问题,以某矿浅埋煤层工作面地质条件为工程背景,通过理论计算获得巷道初步支护方案,进一步运用数值模拟技术进行巷道支护参数优化,并验证了巷道的稳定性。结果表明,锚杆为∅18 mm×2100 mm,间排距1100 mm×1200 mm,锚索为∅15.24 mm×6500 mm,沿巷道中线布置1列,排距为3300 mm时,在保证支护效果的情况下,回采巷道整体上围岩变形和破坏范围较小,更有利于保障矿井生产安全,提高经济效益。研究成果可为合理设计浅埋巷道支护方案提供经验借鉴。Regarding the issue of unreasonable supporting strength in shallow buried coal seams,taking the geological conditions of a shallow coal seam working face in a mine as the engineering background,the preliminary supporting scheme of the roadway was obtained through theoretical calculation,and the numerical simulation technology was further used to optimize the roadway supporting parameters,and the stability of the roadway was verified.The results showed that when the bolt was∅18 mm×2100 mm,the row spacing was 1100 mm×1200 mm,the anchor cable was∅15.24 mm×6500 mm,one column was arranged along the middle line of the roadway,when the row spacing was 3300 mm,under the condition of ensuring the supporting effect,the deformation and failure range of the surrounding rock of the mining roadway were small as a whole,which was more conducive to ensuring the safety of mine production and improving economic benefits.The research results provide experience and reference for the rational design of shallow buried roadway supporting scheme.

关 键 词：浅埋煤层 回采巷道 锚网索支护 支护参数优化 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]