【正文】 薛湖煤礦深井厚煤層柔模泵注混凝土沿空留巷安全開采技術(shù)應(yīng)用研究技術(shù)研究報告二 O 一 三 年 五 月河 南 神 火 煤 電 股 份 有 限 公 司西 安 科 技 大 學(xué)陜 西 開 拓 建 筑 科 技 有 限 公 司I目 錄1 緒論 ................................................................................................................................................................1 研究背景 ................................................................................................................................................1 研究意義 ................................................................................................................................................4 沿空留巷國內(nèi)外研究現(xiàn)狀 ....................................................................................................................5 沿空留巷圍巖活動規(guī)律研究現(xiàn)狀 ................................................................................................5 沿空留巷巷旁支護(hù)研究現(xiàn)狀 ........................................................................................................6 沿空留巷技術(shù)應(yīng)用現(xiàn)狀 ................................................................................................................7 沿空留巷存在的主要問題 ..........................................................................................................10 研究內(nèi)容和技術(shù)路線 ..........................................................................................................................102 柔模混凝土沿空留巷圍巖活動規(guī)律與支護(hù)研究 ......................................................................................12 圍巖活動規(guī)律 ......................................................................................................................................12 采場頂板運動規(guī)律 ......................................................................................................................12 沿空留巷圍巖活動規(guī)律 ..............................................................................................................12 沿空留巷圍巖與支護(hù)剛度結(jié)構(gòu)模型 ..........................................................................................13 沿空留巷圍巖與支護(hù)剛度匹配研究 ..................................................................................................15 圍巖與支護(hù)剛度分析 ..................................................................................................................15 頂?shù)装鍎偠葘ο到y(tǒng)剛度的影響 ..................................................................................................16 系統(tǒng)剛度對巷旁支護(hù)變形的影響 ..............................................................................................17 巷旁支護(hù)剛度對巷旁支護(hù)受力的影響 ......................................................................................17 動壓巷道圍巖變形規(guī)律及破裂范圍 .................................................................................................19 巷道圍巖變形規(guī)律 .....................................................................................................................19 影響巷道圍巖破裂范圍的因素 .................................................................................................19 巷道圍巖的主要破裂范圍 .........................................................................................................23 巷道圍巖變形與破裂范圍的關(guān)系 .............................................................................................24 巷內(nèi)支護(hù)設(shè)計方法 ......................................................................................................................253 柔?；炷料锱灾ёo(hù)受力分析 ..................................................................................................................28 柔模混凝土墻體破壞機(jī)理 .................................................................................................................28 柔?；炷翂w的變形破壞特點 .....................................................................................................31 巷旁支護(hù)設(shè)計方法 ..............................................................................................................................334 沿空留巷支護(hù)設(shè)計 ......................................................................................................................................35 現(xiàn)場條件 ..............................................................................................................................................35 巷道基本支護(hù)設(shè)計 ..............................................................................................................................38 圍巖壓力計算 ..............................................................................................................................38 基本支護(hù)參數(shù)設(shè)計 ......................................................................................................................39 巷道永久加強(qiáng)支護(hù)設(shè)計 ......................................................................................................................40 巷道臨時加強(qiáng)支護(hù)設(shè)計 ......................................................................................................................41 留巷澆墻區(qū)頂?shù)装逯ёo(hù)設(shè)計 ..............................................................................................................42 采空側(cè)切頂擋矸支護(hù)設(shè)計 ..................................................................................................................42 巷旁支護(hù)設(shè)計 ......................................................................................................................................43 基于“分離巖塊法” 的巷旁支護(hù)設(shè)計 ...........................................................................................43II 基于“切頂法” 的巷旁支護(hù)設(shè)計 ...................................................................................................45 基于數(shù)值模擬的巷旁支護(hù)設(shè)計 ..................................................................................................465 Y 型通風(fēng)與瓦斯防治研究及設(shè)計 ..............................................................................................................50 采區(qū)回采巷道布置系統(tǒng) ......................................................................................................................50 型通風(fēng)主副配風(fēng)比及配風(fēng)量研究 ...................................................................................................51 主副配風(fēng)比研究 ............................................................