【正文】 ........................................... 6 礦區(qū)概述 ............................................................................................................................ 6 地形 .......................................................................................................................... 6 氣候 .......................................................................................................................... 6 水文 .......................................................................................................................... 9 地震 ........................................................................................................................ 10 區(qū)域經(jīng)濟(jì)概況 ........................................................................................................ 11 井田地質(zhì)特征 .................................................................................................................. 11 地層 ........................................................................................................................ 11 水文地質(zhì)特征 ........................................................................................................ 15 煤層特征 .......................................................................................................................... 19 煤層 ........................................................................................................................ 19 煤質(zhì) ........................................................................................................................ 22 煤層開采技術(shù)條件 ................................................................................................ 24 2 井田境界與儲(chǔ)量 ........................................................... 27 井田境界 ......................................................................................................................... 27 礦井工業(yè)儲(chǔ)量 ................................................................................................................. 27 礦井地質(zhì)儲(chǔ)量 .................................................................................................................. 28 儲(chǔ)量計(jì)算基礎(chǔ) ........................................................................................................ 28 礦井地質(zhì)儲(chǔ)量計(jì)算 ................................................................................................ 28 礦井工業(yè)儲(chǔ)量計(jì)算 ................................................................................................ 29 礦井可采儲(chǔ)量 ................................................................................................................. 30 井田邊界保護(hù)煤柱 ................................................................................................ 30 工業(yè)廣場(chǎng)保護(hù)煤柱 ................................................................................................ 30 斷層保護(hù)煤柱 ........................................................................................................ 31 風(fēng)井保護(hù)煤柱 ........................................................................................................ 32 大巷保護(hù)煤柱 ........................................................................................................ 32 礦井可采儲(chǔ)量 ........................................................................................................ 32 3 礦井工作制度、設(shè)計(jì)生產(chǎn)能力及服務(wù)年限 ..................................... 33 礦井工作制度 .................................................................................................................. 33 礦井設(shè)計(jì)生產(chǎn)能力及服務(wù)年限 ...................................................................................... 33 確定依據(jù) ................................................................................................................ 33 礦井設(shè)計(jì)生產(chǎn)能力 ................................................................................................ 33 礦 井服務(wù)年限 ........................................................................................................ 33 井型校核 ................................................................................................................ 34 4井田開拓 ................................................................. 35 井田開拓的基本問題 ..................................................................................................... 35 確定井筒形式、位置、數(shù)目 ....................................................................................... 35 開采水平的確定及采區(qū)劃分 ...................................................................................... 37 [鍵入文字 ] 開拓方案的提出 .................................................................................................... 37 開拓方案比較 .................................................................................................................. 38 技術(shù)比較 ................................................................................................................ 38 經(jīng)濟(jì)比較 ................................................................................................................ 38 方案二、四的詳細(xì)經(jīng)濟(jì)比較 ................................................................................ 40 礦井的基本巷道 .............................................................................................................. 42 井筒 ....................................................................................................................... 42 主要開拓巷道 ........................................................................................................ 42 井底車場(chǎng)及硐室 ................................................................................................... 42 驗(yàn)算井底車場(chǎng)空重車線長(zhǎng)度 ............................................................................... 44 5 準(zhǔn)備方式 采區(qū)巷道布置 .................................................... 52 煤層的地質(zhì)特征 .............................................................................................................. 52 采區(qū)位置及范圍 .............................