煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2014年
5期
58-60
,共3页
崔景昆%丰云雷%孙春东%李盟
崔景昆%豐雲雷%孫春東%李盟
최경곤%봉운뢰%손춘동%리맹
高水材料%充填体%宽度与强度%相似模拟%沿空留巷
高水材料%充填體%寬度與彊度%相似模擬%沿空留巷
고수재료%충전체%관도여강도%상사모의%연공류항
high-water material%stowing body%width and strength%analogue simulation%driving roadway along gob
沿空留巷关键是确定巷旁充填体的宽度和强度,然后再通过观察留巷顶板下沉、巷道变形以及当受采动影响稳定后,巷道断面大小是否满足生产需要,以最终确定留巷的成功与否。根据亨建煤矿实际地质生产条件,通过采用河北工程大学 CM250/18平面应力试验台做为模型,做一系列的相似模拟试验。最后,通过观测数据分析来确定亨建煤矿2505工作面的特定条件下沿空留巷最终充填体的宽度和强度。
沿空留巷關鍵是確定巷徬充填體的寬度和彊度,然後再通過觀察留巷頂闆下沉、巷道變形以及噹受採動影響穩定後,巷道斷麵大小是否滿足生產需要,以最終確定留巷的成功與否。根據亨建煤礦實際地質生產條件,通過採用河北工程大學 CM250/18平麵應力試驗檯做為模型,做一繫列的相似模擬試驗。最後,通過觀測數據分析來確定亨建煤礦2505工作麵的特定條件下沿空留巷最終充填體的寬度和彊度。
연공류항관건시학정항방충전체적관도화강도,연후재통과관찰류항정판하침、항도변형이급당수채동영향은정후,항도단면대소시부만족생산수요,이최종학정류항적성공여부。근거형건매광실제지질생산조건,통과채용하북공정대학 CM250/18평면응력시험태주위모형,주일계렬적상사모의시험。최후,통과관측수거분석래학정형건매광2505공작면적특정조건하연공류항최종충전체적관도화강도。
The key of driving roadway along gob is obtaining width and strength of stowing body. Success of driving roadway along gob was judged by roof subsidence,roadway deformation and that whether roadway section meet mining requirement after the roadway was influ-enced by mining. According to actual geological and mining condition of Hengjian Colliery,applying CM250/ 18 plane stress test platform to making analogue simulation, rational width and strength of stowing body was obtained for 2505 mining face of Hengjian Colliery.