矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2014年
6期
60-63
,共4页
动压%窄煤柱%沿空掘巷%支护优化
動壓%窄煤柱%沿空掘巷%支護優化
동압%착매주%연공굴항%지호우화
dynamic Pressure%narrow coal Pillar%roadway driving along next gob%suPPort oPtimization
为解决动压条件下厚煤层沿空巷道难以维护的问题，以内蒙古某矿1902 N回风巷为研究背景，在分析沿空巷道围岩破坏机理的基础上建立窄煤柱受力特征的力学模型，通过沿空掘巷上覆岩层结构分析和力学计算，得出影响巷道稳定性的主要因素是实体煤帮承载能力和窄煤柱的稳定性，同时两者之间又存在相互联系，并在此基础上对沿空掘巷的支护方式及支护参数进行了优化。
為解決動壓條件下厚煤層沿空巷道難以維護的問題，以內矇古某礦1902 N迴風巷為研究揹景，在分析沿空巷道圍巖破壞機理的基礎上建立窄煤柱受力特徵的力學模型，通過沿空掘巷上覆巖層結構分析和力學計算，得齣影響巷道穩定性的主要因素是實體煤幫承載能力和窄煤柱的穩定性，同時兩者之間又存在相互聯繫，併在此基礎上對沿空掘巷的支護方式及支護參數進行瞭優化。
위해결동압조건하후매층연공항도난이유호적문제，이내몽고모광1902 N회풍항위연구배경，재분석연공항도위암파배궤리적기출상건립착매주수력특정적역학모형，통과연공굴항상복암층결구분석화역학계산，득출영향항도은정성적주요인소시실체매방승재능력화착매주적은정성，동시량자지간우존재상호련계，병재차기출상대연공굴항적지호방식급지호삼수진행료우화。
To solve the difficult maintenance Problem of the roadway driving along the next gob of the fully mechanized face in the thick seam under dynamic Pressure,a mechanical model of the force-bearing characteristics of the narrow coal Pillar was established by taking 1902N air-return way in a mine in Inner Mongolia as the research background and based on the analysis of the failure mechanism of the roadway surrounding rock,and it came to the conclusion that the main factors affecting the stability of the roadway were the force-bearing caPacity of the solid coal wall and the stability of the narrow coal Pillar,and an interlink existed between the two factors. On this basis,the oPtimization of suPPort mode and Parameter was carried out for the roadway driving along the next gob.
