【正文】 ................................................. 7 2 井田境界和儲(chǔ)量 ......................................................................................................................... 9 井田境界 .............................................................................................................................. 9 本井田邊界的演變過(guò)程 .......................................................................................... 9 井田境界 .................................................................................................................. 9 儲(chǔ)量計(jì)算基礎(chǔ) ....................................................................................................... 10 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 第 II 頁(yè) 井型校核 ............................................................................................................... 16 4 井田開(kāi)拓 ................................................................................................................................... 17 井田開(kāi)拓的基本問(wèn)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(kāi)采水平的確定及帶區(qū)、采區(qū)的劃分 ................................................................ 19 主要開(kāi)拓巷道 ........................................................................................................ 20 開(kāi)拓方案比較 ........................................................................................................ 20 礦井基本巷道 .................................................................................................................... 29 井筒 ........................................................................................................................ 29 井底車(chē)場(chǎng) ................................................................................................................ 32 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 ................................................................................... 36 水文地質(zhì) ............................................................................................................... 36 地質(zhì)構(gòu)造 ............................................................................................................... 36 帶區(qū)巷道布置及生產(chǎn)系統(tǒng) ............................................................................................... 36 帶區(qū)準(zhǔn)備方式的確定 ........................................................................................... 36 帶區(qū)巷道布置 ....................................................................................................... 37 帶區(qū)生產(chǎn)系統(tǒng) ....................................................................................................... 37 帶區(qū)內(nèi)巷道掘進(jìn)方法 ........................................................................................... 41 帶區(qū)生產(chǎn)能力及采出率 ....................................................................................... 41 帶區(qū)車(chē)場(chǎng)選型設(shè)計(jì) ........................................................................................................... 42 6 采煤方法 ................................................................................................................................... 43 采煤工藝方式 .................................................................................................................... 43 帶區(qū)煤層特征及地質(zhì)條件 ................................................................................... 43 確定采煤工藝方式 ...............................