【正文】 ......... 10 開(kāi)拓方法 .......................................................................................................... 11 階段高度 ................................................................................................... 11 開(kāi)拓方案選擇 ............................................................................................ 11 目 錄 IV 排水系統(tǒng) ................................................................................................... 13 第 4 章 中段運(yùn)輸水平 ........................................................................................... 17 礦床開(kāi)采順序 ................................................................................................... 17 延伸方向回采順序 ..................................................................................... 17 中段回采順序 ............................................................................................ 17 階段 .......................................................................................................... 17 線路設(shè)計(jì) .......................................................................................................... 17 布置要求 ................................................................................................... 17 設(shè)備選型 ................................................................................................... 17 .......................................................... 19 第 5 章 礦山基建工程 ........................................................................................... 21 主井 ................................................................................................................. 21 斷面形狀選擇 ............................................................................................ 21 斷面尺寸規(guī)格 ............................................................................................ 21 風(fēng)速驗(yàn)證 ................................................................................................... 23 支護(hù)形式 ................................................................................................... 24 風(fēng)井 ................................................................................................................. 24 石門(mén)及運(yùn)輸巷道 ................................................................................................ 25 斷面形式 ................................................................................................... 25 單軌巷道斷面 ............................................................................................ 25 雙軌巷道斷面 ............................................................................................ 28 井巷掘進(jìn)速度 ............................................................................................ 32 溜井 ................................................................................................................. 32 井底車(chē)場(chǎng) .......................................................................................................... 32 井底車(chē)場(chǎng)規(guī)格尺寸 ..................................................................................... 32 道岔連接系 統(tǒng) ............................................................................................ 36 各段線路長(zhǎng)度 ............................................................................................ 36 基建工程量 ....................................................................................................... 37 編制依據(jù) ................................................................................................... 37 井巷掘進(jìn)定額指標(biāo) ..................................................................................... 38 基建工程量確定 ......................................................................................... 38 編制結(jié)果 ................................................................................................... 40 第 6 章 采礦方法 ................................................................................................... 43 開(kāi)采技術(shù)條件 ................................................................................................... 43 礦體賦存要素 ............................................................................................ 43 礦石物理力學(xué)性質(zhì) ..................................................................................... 43 礦石價(jià)值及品位 ......................................................................................... 43 采礦方法選擇 ................................................................................................... 43 初選 .......................................................................................................... 43 經(jīng)濟(jì)技術(shù)比較 ............................................................................................ 44 采礦方法確定 ............................................................................................ 44 礦塊采準(zhǔn)切割 ................................................................................................... 45 礦塊構(gòu)造要素 ............................................................................................ 45 礦塊采準(zhǔn)布置 ............................................................................................ 45 目 錄 V 采準(zhǔn)切割巷道施工順序及施工方法 ............................................................. 46 礦房回采 .......................................................................................................... 46 鑿巖 .......................................................................................................... 46 爆破 .......................................................................................................... 46 采場(chǎng)通風(fēng) ................................................................................................... 47 采場(chǎng) 礦石 運(yùn)搬及二次破碎 ...............................................................