【正文】 .................................................................... 26 礦區(qū)自然地理 ............................................................................................................. 26 礦區(qū)地質(zhì)勘查工作及生產(chǎn)現(xiàn)狀 ................................................................................ 26 區(qū)域地質(zhì)概況 ............................................................................................................. 27 礦區(qū)地質(zhì) ..................................................................................................................... 27 礦床地質(zhì) ..................................................................................................................... 30 礦床地質(zhì)儲(chǔ)量 ............................................................................................................. 31 開采技術(shù)條件 ............................................................................................................. 32 基建勘探及生產(chǎn)勘探 ................................................................................................. 33 對(duì)有關(guān)問題的說明和建議 ........................................................................................ 33 4． 水文地質(zhì) ............................................................................................................................. 34 水文地質(zhì)特征 ............................................................................................................. 34 礦坑涌水量預(yù)測(cè) ......................................................................................................... 34 版本號(hào) a 版 肅北縣博倫礦業(yè)有限責(zé)任公司 七角井鐵礦床深部開采工程初步設(shè)計(jì) 2 對(duì)有關(guān)問題的說明和建議 ........................................................................................ 34 5．采礦 ..................................................................................................................................... 36 主要設(shè)計(jì)原則 ............................................................................................................. 36 礦山生產(chǎn)現(xiàn)狀 ............................................................................................................ 36 設(shè)計(jì)范圍和開采儲(chǔ)量 ................................................................................................ 37 礦山生產(chǎn)能力、服務(wù)年限及工作制度 .................................................................... 40 礦床開拓 .................................................................................................................... 44 首采區(qū)段選擇及開采順序 ........................................................................................ 51 開采技術(shù)條件 ............................................................................................................ 51 采礦方法 .................................................................................................................... 53 礦井通風(fēng) .................................................................................................................... 67 坑內(nèi)運(yùn)輸 .................................................................................................................. 92 井下炸藥庫 .............................................................................................................. 93 塌陷區(qū)地表防洪與井下排水 .................................................................................. 93 礦山基建工程 .......................................................................................................... 94 深部開采與上部生產(chǎn)的銜接與過渡 ...................................................................... 95 安全技術(shù)與工業(yè)衛(wèi)生 ............................................................................................ 106 6．礦山機(jī)械 ........................................................................................................................... 109 提升 .......................................................................................................................... 109 壓氣 .......................................................................................................................... 125 通風(fēng) .......................................................................................................................... 127 排水 .......................................................................................................................... 127 井下供水設(shè)施 .......................................................................................................... 129 機(jī)修和汽修 .............................................................................................................. 129 7．井下破碎 ........................................................................................................................... 130 8．暖通與除塵 ....................................................................................................................... 131 設(shè)計(jì)依據(jù) .................................................................................................................. 131 氣象資料 .................................................................................................................. 131 空調(diào) .......................................................................................................................... 131 版本號(hào) a 版 肅北縣博倫礦業(yè)有限責(zé)任公司 七角井鐵礦床深部開采工程初步設(shè)計(jì) 3 井下供暖風(fēng)系統(tǒng) ...................................................................................................... 132 除塵 .......................................................................................................................... 136 9．總圖運(yùn)輸 ........................................................................................................................... 138 礦區(qū)概況 ................................................................................................................... 138 總體布置 .................................................................................................................. 139 豎向布置和場(chǎng)地排水 ..................................