【正文】 ...................................................183. 3. 2 礦石質量 .............................................................................................................................193. 4 礦區(qū)水文地質及開采技術條件 ..................................................................................................223. 4. 1 礦區(qū)水文地質 .....................................................................................................................223. 4. 2 開采技術條件 .....................................................................................................................223. 5 礦床地質勘探工作及深部探礦 .............................................................................................243. 5. 1 以往地質勘探工作 .............................................................................................................243. 5. 2 礦山開采現狀及深部探礦 .................................................................................................243. 6 礦區(qū)儲量 ......................................................................................................................................263. 6. 1 工業(yè)指標 .............................................................................................................................263. 6. 2 礦山累計探明地質資源儲量 .............................................................................................263. 6. 3 礦區(qū)保有資源儲量 .............................................................................................................273. 6. 4 低品位礦石綜合利用 .........................................................................................................27第 4 章 礦床開拓 ......................................................................................................28 礦山開拓系統(tǒng)現狀 .......................................................................................................................28 階段高度的確定 ...........................................................................................................................28 階段高度 ...............................................................................................................................28 按階段開拓和采準時間計算出階段高度 ...........................................................................28 礦山生產能力 ...............................................................................................................................29 礦山工作制度 .......................................................................................................................29 礦山生產能力 .......................................................................................................................29 礦山年產量的校核 .......................................................................................................................30 礦山設計年產量 ...................................................................................................................30 按合理開采順序同時回采礦塊數驗證礦山生產能力 .......................................................30 按礦床開采年下降深度確定驗證礦山年產量 ...................................................................31 按及時準備新階段驗證礦山年產量 ...................................................................................31 礦山服務年限 ...............................................................................................................................32 開拓方案的選擇 ...........................................................................................................................33 選擇依據 ...............................................................................................................................33 開拓方案考慮的問題 ...........................................................................................................33 提出開拓方案 .......................................................................................................................34 主副井位置的確定 .......................................................................................................................37 主井位置的確定 ...................................................................................................................37 2副盲斜井位置的確定 ........................................................................................................37 盲斜井聯合開拓方案的說明 .......................................................................................................37 開拓中段劃分 .......................................................................................................................37 采用的開拓的設計 ...............................................................................................................38 各種硐室的確定 ....................................................................................................................41 開拓系統(tǒng)描述 ........................................................................................................................44 開拓基建工程進度計劃編制 .......................................................................................................45 根據井巷計算所需的開拓工程量 ........................................................................................45第 5 章 采礦方法 ........................................................................................................47 礦床開采技術條件 .......................................................................................................................47 礦山現有的采礦方法評述 ...........................................................................................................47 礦山現行的采礦方法 ............................................................................................................47 主要論述：水壓支柱護頂壁式崩落法 ................................................................................48 礦柱回收及空區(qū)處理 ............................................................................................................49 現有的采礦方法存在的問題及改進問題 ............................................................................49 采礦方法選擇 ..................................................................