【正文】 .......................................................................................................................................................... 1 礦區(qū)氣候條件 ........................................................................................................................................................... 1 礦區(qū)的水文情況 ....................................................................................................................................................... 1 井田地質(zhì)特征 .................................................................................................................................................................... 1 煤層特征 ............................................................................................................................................................................. 1 主要水文地質(zhì)條件 ................................................................................................................................................... 1 可采煤層 ..................................................................................................................................................................... 3 煤的特征 .................................................................................................................................................................... 3 瓦斯，煤塵及 自燃，地溫 ..................................................................................................................................... 4 2 井田境界與儲(chǔ)量 .......................................................................................................................................................................6 井田境界 ............................................................................................................................................................................. 6 礦井儲(chǔ)量計(jì)算 .................................................................................................................................................................... 6 構(gòu)造類型 ..................................................................................................................................................................... 6 礦井工業(yè)儲(chǔ)量 ........................................................................................................................................................... 6 礦井可采儲(chǔ)量 ........................................................................................................................................................... 8 礦井可采儲(chǔ)量 .................................................................................................................................................................. 8 永久保護(hù)煤柱留設(shè) ................................................................................................................................................ 8 礦井可采儲(chǔ)量 ....................................................................................................................................................... 10 3 礦井工作制度、設(shè)計(jì)生產(chǎn)能力 及服務(wù)年限 ....................................................................................................................11 礦井工作制度 .................................................................................................................................................................. 11 礦井設(shè)計(jì)生產(chǎn)能力及服務(wù)年限 ................................................................................................................................... 11 4 井田開(kāi)拓 ............................................................................................................................................................................... 13 井田開(kāi)拓的基本問(wèn)題 ..................................................................................................................................................... 13 井筒形式的確定 ..................................................................................................................................................... 13 井筒位置的確定采（帶）區(qū)劃分 ...................................................................................................................... 15 工業(yè)場(chǎng)地的位置 ..................................................................................................................................................... 15 開(kāi)采水平的確定 ..................................................................................................................................................... 16 礦井開(kāi)拓方案比較 ................................................................................................................................................ 16 礦井基本巷道 .................................................................................................................................................................. 20 井筒 ............................................................................................................................................................................ 20 井底車場(chǎng)及硐室 ...................................................................................................................................................... 20 主要開(kāi)拓巷道 .......................................................................................................................................................... 27 巷道支護(hù) .................................................................................................................................錯(cuò)誤 !未定義書簽。 Scheme ii: single level down the shaft mining, in 550 level, rock DaHang。設(shè)計(jì)礦井的噸煤成本 110 元 /t。 生產(chǎn)班每班 3 個(gè)循環(huán)，日進(jìn) 7 個(gè)循環(huán)，循環(huán)進(jìn)尺 m，日產(chǎn)量 5495 t。井田地質(zhì)條件簡(jiǎn)單。孫疃煤礦位于安徽省淮北市濉溪縣境內(nèi)，其南與任樓礦井接壤，北與楊柳井田毗鄰，東北距宿州市約 23km。交通十分方便。方案一：立井單水平上下山開(kāi)采，水平在 550m, 煤層大巷；方案二：立井單水平上下山開(kāi)采， 在 550 水平，巖層大巷；方案三：立井兩水平暗斜井開(kāi)采 延伸至 800 m 水平；方案四：立井兩水平開(kāi)采，立井井延伸至 800 m水平。礦井采用兩翼對(duì)角式通風(fēng)。 obliquity 17, average coal seam, thick about 3 m. Field 220 Mt for industrial reserves, recover