【文章內(nèi)容簡(jiǎn)介】 iii 4 采礦方法 ........................................................................................................................... 37 開(kāi) 采技術(shù)條件 ......................................................................................................... 37 選擇采礦方法的原則 ............................................................................................. 37 采礦方法初選及描述 ............................................................................................. 37 采礦方法比較 ......................................................................................................... 38 淺孔留礦法主要優(yōu)缺點(diǎn) .............................................................................. 38 上向水平分層干式充填采礦法優(yōu)缺點(diǎn) ...................................................... 38 采礦方法詳細(xì)比較 ...................................................................................... 39 采礦方法的確定 ..................................................................................................... 39 礦塊構(gòu)成要素 ......................................................................................................... 39 礦塊布置方式 .............................................................................................. 39 礦房長(zhǎng)度 ...................................................................................................... 39 階段高度 ...................................................................................................... 39 礦房的水平暴露面積 .................................................................................. 40 礦柱尺寸 ...................................................................................................... 40 采礦方法的結(jié)構(gòu)參數(shù) .................................................................................. 40 采準(zhǔn)工作 ................................................................................................................. 41 沿脈平巷 ...................................................................................................... 41 天井 .............................................................................................................. 41 放礦溜井 ...................................................................................................... 41 聯(lián)絡(luò)道 .......................................................................................................... 41 切割工作 ................................................................................................................. 42 采準(zhǔn)切割工程量 ..................................................................................................... 42 礦塊中采準(zhǔn)切割工程施工順序 .......................................................................... 42 回采工作 ............................................................................................................... 42 分層高度 .................................................................................................... 43 鑿巖爆破工作 ............................................................................................ 43 礦石運(yùn)搬 .................................................................................................... 44 混凝土澆灌工作 ........................................................................................ 44 充填工作 .................................................................................................... 45 采場(chǎng)地壓管理 ...................................................................................................... 45 iv 礦塊通風(fēng) ............................................................................................................... 45 通風(fēng)系統(tǒng) .................................................................................................... 45 通風(fēng)方式 .................................................................................................... 46 通風(fēng)時(shí)間 .................................................................................................... 46 回采工作組織 ....................................................................................................... 46 回采工作組織的人員、設(shè)備安排 ............................................................ 46 一個(gè)回采作業(yè)循環(huán)時(shí)間和崩礦量 ............................................................ 47 礦房回采時(shí)間 ....................................................................................................... 47 采礦方法技術(shù)經(jīng)濟(jì)匯編 ....................................................................................... 47 5 礦井通風(fēng) ........................................................................................................................... 49 礦井通風(fēng)系統(tǒng)的基本要求 ..................................................................................... 49 礦井通風(fēng)系統(tǒng)宏觀構(gòu)建方案的擬定 ..................................................................... 49 礦井進(jìn)風(fēng)井與回風(fēng)井的布置 ................................................................................. 49 風(fēng)井布置方式 .............................................................................................. 49 側(cè)翼對(duì)角式布置的優(yōu)點(diǎn) .............................................................................. 50 通風(fēng)線路 ...................................................................................................... 50 礦井通風(fēng)方式及主扇安裝地點(diǎn)的選擇 ................................................................. 50 通風(fēng)方式的確定 .......................................................................................... 50 壓入式通風(fēng)的優(yōu)點(diǎn) ...................................................................................... 50 主扇安裝地點(diǎn)的選擇 .................................................................................. 50 礦井總風(fēng)量計(jì)算 ..................................................................................................... 50 回采工作面需風(fēng)量計(jì)算 .............................................................................. 50 掘進(jìn)工作面需風(fēng)量 ...................................................................................... 52 硐室風(fēng)量計(jì)算 .................................................