山东科技大学学报:自然科学版
山東科技大學學報:自然科學版
산동과기대학학보:자연과학판
Journal of Shandong Univ of Sci and Technol: Nat Sci
2011年
5期
6-11,21
,共7页
孤岛工作面%上覆岩层%变形破坏%相似试验
孤島工作麵%上覆巖層%變形破壞%相似試驗
고도공작면%상복암층%변형파배%상사시험
isolated island face%overlying strata%deformation and failure%similar test
针对平煤八矿孤岛工作面的实际开采条件,采用相似材料模拟试验的方法,研究了巷道掘进和工作面开采过程中上覆岩层的变形破坏规律,得到了孤岛工作面上覆岩层运动特征。分析结果认为,合理的巷道位置应布置在靠近采空区的应力降低区内,煤柱宽度取5~6m为宜,不宜大于10m。
針對平煤八礦孤島工作麵的實際開採條件,採用相似材料模擬試驗的方法,研究瞭巷道掘進和工作麵開採過程中上覆巖層的變形破壞規律,得到瞭孤島工作麵上覆巖層運動特徵。分析結果認為,閤理的巷道位置應佈置在靠近採空區的應力降低區內,煤柱寬度取5~6m為宜,不宜大于10m。
침대평매팔광고도공작면적실제개채조건,채용상사재료모의시험적방법,연구료항도굴진화공작면개채과정중상복암층적변형파배규률,득도료고도공작면상복암층운동특정。분석결과인위,합리적항도위치응포치재고근채공구적응력강저구내,매주관도취5~6m위의,불의대우10m。
According to the actual mining conditions of an isolated island face in Pingdingshan 8 coalmine,the law of deformation and failure of overlying strata in the process of roadway driving and face mining was studied by using similar material simulation experiment research method,obtaining the movement characteristics of overlying strata of an isolated island face. The analysis concluded that the reasonable location of roadway should be allocated at the stress lowered zones and the coal pillar width should be 5-6 m,not larger than 10 m.