山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2015年
1期
68-69,72
,共3页
近距离煤层群%围岩破坏状态%数值模拟%注浆加固
近距離煤層群%圍巖破壞狀態%數值模擬%註漿加固
근거리매층군%위암파배상태%수치모의%주장가고
contiguous coal seam group%damage state of surrounding rock%numerical simulation%grouting reinforcement
以东曲煤矿4#煤层14214工作面生产为例，针对2#煤层和4#煤层近距离赋存特点，理论分析了2#煤层开采底板岩层破坏深度，对4#煤层开采顶板岩层赋存状态进行了研究，确定了工作面液压支架的支护参数，提出了近距离煤层群下组煤开采破碎顶板注浆控制技术。
以東麯煤礦4#煤層14214工作麵生產為例，針對2#煤層和4#煤層近距離賦存特點，理論分析瞭2#煤層開採底闆巖層破壞深度，對4#煤層開採頂闆巖層賦存狀態進行瞭研究，確定瞭工作麵液壓支架的支護參數，提齣瞭近距離煤層群下組煤開採破碎頂闆註漿控製技術。
이동곡매광4#매층14214공작면생산위례，침대2#매층화4#매층근거리부존특점，이론분석료2#매층개채저판암층파배심도，대4#매층개채정판암층부존상태진행료연구，학정료공작면액압지가적지호삼수，제출료근거리매층군하조매개채파쇄정판주장공제기술。
Acting 14214 working face in 4#coal seam of Dongqu coal mine as an example, according to the occurrence characteristics of the nearer distance between 2# and 4# coal seam, analyzed the theoretical failure depth of lfoor strata in mining 2# seam, studied the roof strata occurrence of 4# coal seam mining, determined the support parameters of working face hydraulic support, and proposed the control technology of fractured roof grouting of the under-group coal seam group.
