【正文】 － 1－ 磷石膏渣場水土保持方案 目 錄 1 前言 ................................................................................................................................. 1 企業(yè)現(xiàn)狀 ................................................................................................................. 1 磷石膏渣場建設(shè)意義和必要性 ............................................................................. 2 方案的編制過程 ..................................................................................................... 3 磷石膏渣場基本情況 ............................................................................................. 3 2 方案編制總則 ................................................................................................................. 5 方案編制目的和意義 ............................................................................................. 5 編制依據(jù) .................................................................................................................. 6 法律法規(guī) ....................................................................................................... 6 部委規(guī)章 ....................................................................................................... 6 規(guī)范性文件 ................................................................................................... 7 規(guī)范標準 ....................................................................................................... 7 技術(shù)資料 ....................................................................................................... 8 方案編制深度與設(shè)計水平年 .................................................................................. 8 3 渣場概況 ........................................................................................................................10 渣場工程量、投資及規(guī)模 ................................................................................... 11 渣場工程量、投資 ..................................................................................... 11 建設(shè)規(guī)模 ..................................................................................................... 12 渣場設(shè)計 ............................................................................................................... 12 工藝流程 ..................................................................................................... 12 堆筑工藝 ..................................................................................................... 13 渣場庫容及服務(wù)年限 ................................................................................. 14 磷石膏特性及輸送工藝 ............................................................................. 14 渣場各項工程概況 ............................................................................................... 16 初期壩 ......................................................................................................... 17 渣場排水及防滲 ......................................................................................... 17 防洪排洪 ..................................................................................................... 17 渣場管理站 ................................................................................................. 18 進場公路 ..................................................................................................... 18 排滲及安全 監(jiān)測 ......................................................................................... 18 渣場占地 ..................................................................................................... 19 渣場環(huán)境影響 ....................................................................................................... 19 4 項目區(qū)概況 ....................................................................................................................22 自然條件 ................................................................................................................ 22 地形地貌 ..................................................................................................... 22 地層巖性及工程地質(zhì) ................................................................................. 23 水文氣候 ..................................................................................................... 23 土壤 ............................................................................................................. 24 － 2－ 森林植被 ..................................................................................................... 24 水土流失現(xiàn)狀 ....................................................................................................... 25 社會經(jīng)濟條件 ....................................................................................................... 26 5 渣場建設(shè)水土流失預(yù)測 ............................................................................................... 27 水土流失分析原則 ............................................................................................... 27 擾動原地貌、損壞土地面積 ............................................................................... 27 損壞水土保持設(shè)施分析 ....................................................................................... 28 棄土棄渣量預(yù)測 ................................................................................................... 28 可能造成的水土流失量 ........................................................................................ 29 預(yù)測方法及時段 ......................................................................................... 29 原生水土流失量分析 ................................................................................. 29 渣場建設(shè)及運行過程中水土流失量預(yù)測 ................................................. 30 可能造成的水土流失危害 .................................................................................... 31 預(yù)測結(jié)果分析 ........................................................................................................ 32 預(yù)測結(jié)果 .....................................................................