【正文】 朱集礦首采工作面煤（巖）巷礦壓監(jiān)測及支護(hù)技術(shù) 研究報告 中國礦業(yè)大學(xué) 礦業(yè)工程學(xué)院 淮南礦業(yè)集團(tuán) 朱集煤 礦 2021 年 11 月 12 日 朱集礦首采工作面煤（巖）巷礦壓監(jiān)測及支護(hù)技術(shù)研究報告 1 目 錄 第一篇 深井巷巷道圍巖支護(hù)理論 ...................................................... 1 1 深井巷道支護(hù)原理及理論 .............................................................................. 1 基本控制思路 ............................................................................................. 1 巷道圍巖強(qiáng)化控制理論和支護(hù)技術(shù) ............................................................. 2 2 動態(tài)分步施 工控制技術(shù) .................................................................................. 8 動態(tài)分步施工控制原理 ............................................................................... 8 過程控制技術(shù) ............................................................................................. 9 關(guān)鍵技術(shù)手段 ........................................................................................... 10 3 地應(yīng)力實測技術(shù) ............................................................................................ 11 地應(yīng)力測試系統(tǒng)簡介 ................................................................................ 12 地應(yīng)力測試原理 ....................................................................................... 15 地應(yīng)力測孔布置原則 ................................................................................ 16 地應(yīng)力測試結(jié)果及其分析 ......................................................................... 17 4 數(shù)值模擬研究 ................................................................................................ 20 數(shù)值模型建立 ........................................................................................... 20 模擬方案的確定 ....................................................................................... 21 數(shù)值模擬分析 ........................................................................................... 22 模擬結(jié)論 .................................................................................................. 27 5 朱集礦首采面巷道維護(hù)特點與難點 ............................................................ 28 巷道維護(hù)特點 ........................................................................................... 28 巷道維護(hù)難點 ........................................................................................... 29 第二篇 朱集礦首采工作面煤（巖 ）巷支護(hù)方案 ............................. 30 1 1111(1)工作面軌道順槽支護(hù)方案 ............................................................... 30 設(shè)計說明 .................................................................................................. 30 斷面 支護(hù) 參數(shù) ........................................................................ 30 斷面 支護(hù)參數(shù) ........................................................................ 38 朱集礦首采工作面煤（巖）巷礦壓監(jiān)測及支護(hù)技術(shù)研究報告 2 2 1111(1)工作面運輸順槽支護(hù)方案 ............................................................... 46 設(shè)計說明 .................................................................................................. 46 斷面 支護(hù)參數(shù) ........................................................................ 47 斷面 支護(hù)參數(shù) ........................................................................ 56 3 1111(1)工作面軌道底抽巷支護(hù)方案 ........................................................... 65 設(shè)計說明 .................................................................................................. 65 工程地質(zhì)條件 ........................................................................................... 66 軌道順槽底抽巷支護(hù)方案 及參數(shù) ............................................................... 70 4 1111(1)工作面運輸?shù)壮橄镏ёo(hù)方案 ........................................................... 79 工程地質(zhì)條件 ........................................................................................... 79 支護(hù)方案及參數(shù) ....................................................................................... 84 5 1111(1)工作面切眼支護(hù)方案 ....................................................................... 96 設(shè)計依據(jù)與切眼尺寸 ................................................................................ 96 切眼支護(hù)方案一 ....................................................................................... 97 切眼支護(hù)方案二 ..................................................................................... 102 6 施工機(jī)具及質(zhì)量要求 .................................................................................. 107 支護(hù)材料和施工機(jī)具 .............................................................................. 107 錨桿安裝要求 ......................................................................................... 107 第三篇 朱集礦首采工作面煤（巖）巷礦壓監(jiān)測及顯現(xiàn)規(guī)律 ....... 112 1 1111(1)軌道順槽礦壓顯現(xiàn)規(guī)律 ................................................................. 112 巷 道表面收斂規(guī)律 ...................................................................................112 巷道頂板離層規(guī)律 ...................................................................................114 現(xiàn)有巷道實際尺寸 ...................................................................................114 現(xiàn)有巷道維護(hù)實照 ...................................................................................116 2 運輸順槽礦壓顯現(xiàn)規(guī)律 .............................................................................. 117 3 軌順底抽巷礦壓顯現(xiàn)規(guī)律 .......................................................................... 117 兩幫收斂規(guī)律 ..........................................................................................117 頂?shù)装迨諗恳?guī)律 ..................................................................................... 121 頂板離層規(guī)律 ......................................................................................... 123 朱集礦首采工作面煤（巖）巷礦壓監(jiān)測及支護(hù)技術(shù)研究報告 3 頂板分類調(diào)查 ......................................................................................... 124 頂板錨索失效調(diào)查 .................................................................................. 125 小結(jié) ....................................................................................................... 129 施工建議 .....................