【正文】 ........................................................................................ 2 礦井概況 ........................................................................................................................... 2 地理位置與交通 ...................................................................................................... 2 地形地貌及水文情況 ............................................................................................. 2 氣候條件 ................................................................................................................. 2 其它條件 ................................................................................................................. 3 井田地質(zhì)特征 ................................................................................................................... 3 地層 ......................................................................................................................... 3 地質(zhì)構(gòu)造 ................................................................................................................. 3 水文地質(zhì) ................................................................................................................. 4 煤層特征 ........................................................................................................................... 5 煤層 ......................................................................................................................... 5 煤質(zhì)及用途 ............................................................................................................. 6 煤層開采技術(shù)條件 ................................................................................................. 7 2 井田境界和儲(chǔ)量 ......................................................................................................................... 9 井 田境界 ............................................................................................................................ 9 井田工業(yè)儲(chǔ)量 .................................................................................................................... 9 儲(chǔ)量計(jì)算基礎(chǔ) ......................................................................................................... 9 井田勘探程度 ....................................................................................................... 10 礦井工業(yè)儲(chǔ)量計(jì)算 ............................................................................................... 10 礦井設(shè)計(jì)儲(chǔ)量 ..................................................................................................................11 永久煤柱損失量 ....................................................................................................11 礦井設(shè)計(jì)儲(chǔ)量 ....................................................................................................... 12 礦井可采儲(chǔ)量 ................................................................................................................. 12 工業(yè)廣場(chǎng)保護(hù)煤柱煤量 ....................................................................................... 12 主要井巷保護(hù)煤柱煤量 ....................................................................................... 13 礦井可采儲(chǔ)量 ....................................................................................................... 13 3 礦井工作制度、設(shè)計(jì)生產(chǎn)能力及服務(wù)年限 ........................................................................... 15 礦井工作制度 ................................................................................................................. 15 礦井設(shè)計(jì)生產(chǎn)能力及服務(wù)年限 ..................................................................................... 15 確定依據(jù) ............................................................................................................... 15 礦井設(shè)計(jì)生產(chǎn)能力 ............................................................................................... 15 礦井服務(wù)年限 ....................................................................................................... 15 井型校核 ............................................................................................................... 16 第 II 頁 4 井田開拓 ................................................................................................................................... 17 井田開拓的基本問題 ...................................................................................................... 17 確定井筒形式、數(shù)目、位置及坐標(biāo) .................................................................... 17 工業(yè)場(chǎng)地的位置 .................................................................................................... 19 開采水平的確定及帶區(qū)、采區(qū)的劃分 ................................................................ 19 主要開拓巷道 ........................................................................................................ 20 開拓方案比較 ........................................................................................................ 20 礦井基本巷道 .................................................................................................................. 28 井筒 ........................................................................................................................ 28 井底車場(chǎng) ................................................................................................................ 30 大巷 ........................................................................................................................ 33 5 準(zhǔn)備方式 —帶區(qū)巷道布置 ....................................................................................................... 36 煤層地質(zhì)特征 .................................................................................................................. 36 帶區(qū)位 置 ................................................................................................................ 36 帶區(qū)煤層特征 ....................................................................................................... 36 煤層頂?shù)装鍘r石構(gòu)造情況