【正文】 采區(qū)均分成 3個(gè)區(qū)段。煤層相對(duì)穩(wěn)定，頂?shù)装逵屑?xì)砂、粘土、粉砂等巖石構(gòu)成，結(jié)構(gòu)穩(wěn)定，便于進(jìn)行開(kāi)采。 井田內(nèi)三個(gè)可采煤層瓦斯含量均較高， CH４ 絕對(duì)涌出量 /min、相對(duì)涌出量 m3/t。 ， 井田總面積為 平方公里 。1礦井概況 ................................................................ 1 .................................................................. 1 地理位置 ............................................................ 1 交通條件 ............................................................ 1 礦區(qū)的自然地理 ...................................................... 2 .......................................................... 2 地質(zhì)簡(jiǎn)況 ........................................................... 2 礦區(qū)范圍內(nèi)的地層情況 ............................................... 3 煤層與煤質(zhì) ......................................................... 6 水文地質(zhì) ............................................................ 7 服務(wù)年限 .................................................... 8 儲(chǔ)量等級(jí)的圈定 ...................................................... 8 礦井地質(zhì)儲(chǔ)量的計(jì)算 .................................................. 8 礦井工業(yè)儲(chǔ)量的計(jì)算 .................................................. 9 礦井可采儲(chǔ)量 ...................................................... 10 ....................................................... 10 礦井瓦斯 ........................................................... 10 煤塵爆炸性及地溫情況 ............................................... 11 煤層自燃傾向性 ..................................................... 11 2 井田開(kāi)拓 .............................................................. 11 、服務(wù)年限及合理性分析 ....................................... 11 工作制度 ........................................................... 11 礦井服務(wù)年限 ....................................................... 11 合理性分析 ......................................................... 11 ......................................................... 12 井田劃分階段 ....................................................... 12 目錄 階段內(nèi)的再劃分 ..................................................... 13 開(kāi)拓方式 ............................................................. 13 開(kāi)采順序 ........................................................... 13 井田開(kāi)拓方式 ....................................................... 13 確定井硐形式、數(shù)目及配置 ............................................. 18 井硐形式的選擇 ..................................................... 18 確定工業(yè)廣場(chǎng)及井口位置 ............................................. 19 礦井基本巷道 ......................................................... 20 井筒 ............................................................... 20 井底車場(chǎng) .......................................................... 23 主要開(kāi)拓巷道設(shè)計(jì) ................................................... 25 3 采煤方法和采區(qū)巷道布置 ................................................. 30 采煤方法 ............................................................. 30 采煤方法的選擇 ..................................................... 30 采煤設(shè)備的選擇 ..................................................... 32 回采工藝 .......................................................... 32 采區(qū)巷道布置 ......................................................... 33 采區(qū)走向長(zhǎng)度確定 ................................................... 33 煤柱尺寸的確定 ..................................................... 33 采區(qū)上山布置 ....................................................... 34 聯(lián)絡(luò)巷的布置 ....................................................... 35 綜采采區(qū)巷道布置 ................................................... 36 采區(qū)運(yùn)輸及通風(fēng)生產(chǎn)系統(tǒng)確定 ......................................... 36 采區(qū)車場(chǎng)設(shè)計(jì) ....................................................... 37 采區(qū)主要硐室布置 ................................................... 39 采區(qū)采掘計(jì)劃 ........................................................ 40 采區(qū)主要巷道參數(shù)確定 ............................................... 40 采區(qū)生產(chǎn)能力確定 ................................................... 43 礦井生產(chǎn)系統(tǒng) ......................................................... 44 4 礦井通風(fēng) ............................................................... 45 ......................................................... 45 通風(fēng)設(shè)計(jì)的原則和要求 .............................................. 45 礦井通風(fēng)的影響因素 ................................................. 46 礦井通風(fēng)方法 ....................................................... 47 ..................................................... 52 礦井風(fēng)量計(jì)算原則 ................................................... 52 礦井風(fēng)量計(jì)算 ....................................................... 52 風(fēng)量分配 ........................................................... 57 風(fēng)速驗(yàn)算 見(jiàn)表 44 .................................................. 58 通風(fēng)阻力的計(jì)算 ...................................................... 58 礦井通風(fēng)阻力的計(jì)算原則 ............................................. 58 礦井通風(fēng)阻力計(jì)算（第一水平） ....................................... 58 等積孔的計(jì)算 ....................................................... 60 ................................................... 60 礦井通風(fēng)設(shè)備的要求 ......