【正文】 ................................................................................................... 14 4 井田開拓 ........................................................................................................................................................ 16 井田開拓的基本問題 ........................................................................................................................ 16 井筒形式及數(shù)目 ........................................................................................................................ 16 工業(yè)廣場(chǎng)及井口位置的確定 ............................................................................................... 17 開采水平的確定及采區(qū)劃分 ............................................................................................... 18 采區(qū)劃分及其布置 ................................................................................................................... 19 開拓方 案比較 ....................................................................................................................................... 19 提出方案 ........................................................................................................................................ 19 技術(shù)比較 ........................................................................................................................................ 21 經(jīng)濟(jì)比較 ........................................................................................................................................ 23 綜合比較 ....................................................................................................................................... 24 礦井基本巷道 ....................................................................................................................................... 24 井筒 .................................................................................................................................................. 24 井底車場(chǎng) ........................................................................................................................................ 25 主要開拓巷道 .............................................................................................................................. 25 5 準(zhǔn)備方式 —— 帶區(qū)巷道布置 ........................................................................................................ 34 華北科技學(xué)院畢業(yè)設(shè)計(jì)書 3 煤層的地質(zhì)特征 ................................................................................................................................... 34 煤層埋藏條件 .............................................................................................................................. 34 煤質(zhì)特征 ........................................................................................................................................ 34 煤層頂、底板條件 .................................................................................................................... 34 煤層的含瓦斯特征 .................................................................................................................... 34 水文地質(zhì)特征 .............................................................................................................................. 34 煤塵的爆炸性和自燃發(fā)火危險(xiǎn)性 ...................................................................................... 34 地質(zhì)構(gòu)造 ........................................................................................................................................ 34 地表特征 ........................................................................................................................................ 35 帶區(qū)巷道布置及生產(chǎn)系統(tǒng) .............................................................................................................. 35 首采帶區(qū)概況 .............................................................................................................................. 35 采煤方法及工作面長度的確定 ........................................................................................... 35 巷道布置 ........................................................................................................................................ 35 工作面接替順序 ......................................................................................................................... 35 帶區(qū)通風(fēng) ........................................................................................................................................ 36 帶區(qū)生產(chǎn)系統(tǒng) .............................................................................................................................. 36 巷道掘進(jìn)方法 .............................................................................................................................. 37 帶區(qū)的生產(chǎn)能力和帶區(qū)采出率 ........................................................................................... 39 帶區(qū)車場(chǎng)選型設(shè)計(jì) ............................................................................................................................. 40 帶區(qū)車場(chǎng) ........................................................................................................................................ 40 各個(gè)系統(tǒng)的說明 ........................................................................................................................ 40 帶區(qū)主要硐室布置 .................................................................................................................... 41 6 采煤方法 ....................................................................................................................................................... 42 采煤工藝方式 ........................................................................................................................................ 42 設(shè)計(jì)帶區(qū)地質(zhì)條件 .................................................................................................................... 42 采煤方法及其機(jī)械化程度的確定 ........................................