【文章內(nèi)容簡(jiǎn)介】 ................................................................................................................................... 26 礦井開拓延伸及深部開拓方案 ........................................................................................................... 26 開采順序 ................................................................................................................................................. 26 方案比較 ................................................................................................................................................. 26 礦井基本巷道 ................................................................................................................................................ 34 井筒 ......................................................................................................................................................... 34 井底車場(chǎng)及硐室 .................................................................................................................................... 38 主要開拓巷道 ......................................................................................................................................... 39 巷道支護(hù) ................................................................................................................................................. 44 5 準(zhǔn)備方式 —— 采區(qū)巷道布置 ..................................................................................................... 45 煤層地質(zhì)特征 ................................................................................................................................................. 45 采區(qū)位置 ................................................................................................................................................. 45 采區(qū)煤層特征 ......................................................................................................................................... 45 煤層頂?shù)装鍘r石構(gòu)造情況 .................................................................................................................... 45 水文地質(zhì) ................................................................................................................................................. 45 地質(zhì)構(gòu)造 ................................................................................................................................................. 46 地表情況 ................................................................................................................................................. 46 采區(qū)巷道布置及生產(chǎn)系統(tǒng) ............................................................................................................................ 46 采區(qū)位置及范圍 .................................................................................................................................... 46 采煤方法及工作面長(zhǎng)度的確定 ........................................................................................................... 46 確定采區(qū)各種巷道的尺寸、支護(hù)方式及通風(fēng)方式 .......................................................................... 46 煤柱尺寸的確定 .................................................................................................................................... 46 采區(qū)巷道的聯(lián)絡(luò)方式 ............................................................................................................................ 47 采區(qū)接替順序 ......................................................................................................................................... 47 采區(qū)生產(chǎn)系統(tǒng) ......................................................................................................................................... 47 采區(qū)內(nèi)巷道掘進(jìn)方法 ............................................................................................................................ 48 采區(qū)生產(chǎn)能力及采出率 ........................................................................................................................ 48 采區(qū)車場(chǎng)設(shè)計(jì)選型 ........................................................................................................................................ 49 確定采區(qū)車場(chǎng)形式 ................................................................................................................................ 49 采區(qū)主要硐室布置 ................................................................................................................................ 51 6 采煤方法 ............................................................................................................................... 53 采煤工藝方式 ................................................................................................................................................. 53 采區(qū)煤層特征及地質(zhì)條件 .................................................................................................................... 53 確定采煤工藝方式 ................................................................................................................................ 53 回采工作面參數(shù) .................................................................................................................................... 54 回采工作面采煤機(jī)、刮板輸送機(jī)選型 ............................................................................................... 54 采煤工作面支護(hù)方式 ............................................................................................................................ 56 端頭支護(hù)及超前支護(hù)方式 .................................................................................................................... 59 各工藝過程注意事項(xiàng) ............................................................................................................................ 60 采煤工作面正規(guī)循環(huán)作業(yè) ................................................................................................................... 61 21011 首采工作面 回采巷道布置 ................................................................................................................ 64 回采巷道布置方式 .......................................