【正文】 重點小流域防洪避險規(guī)劃報告 重點小流域防洪避險規(guī)劃報告（報批稿） 重點小流域防洪避險規(guī)劃報告目　錄1 綜合說明 .......................................................................................................................................1 前言 ....................................................................................................................................2 基本情況 ............................................................................................................................1 規(guī)劃總則 ............................................................................................................................2 水文水利計算 ....................................................................................................................3 山洪風險分區(qū)及防避方案 ................................................................................................4 防洪避險建設 ....................................................................................................................5 防洪避險管理 ....................................................................................................................7 規(guī)劃實施 ............................................................................................................................72 基本情況 .......................................................................................................................................8 自然狀況 ............................................................................................................................8 社會經(jīng)濟概況 ....................................................................................................................9 水利工程 ..........................................................................................................................123 規(guī)劃總則 .....................................................................................................................................16 指導思想 ..........................................................................................................................16 規(guī)劃水平年 ......................................................................................................................16 規(guī)劃目標 ..........................................................................................................................16 規(guī)劃原則 ..........................................................................................................................16 規(guī)劃任務 ..........................................................................................................................17 規(guī)劃范圍 ..........................................................................................................................17 規(guī)劃依據(jù) ..........................................................................................................................174 水文水利計算 .............................................................................................................................19 基本資料 ..........................................................................................................................19 水文計算 ..........................................................................................................................19 水利計算 ..........................................................................................................................22 現(xiàn)狀防洪能力分析 ..........................................................................................................235 山洪風險分區(qū)和防避方案 .........................................................................................................28 災害分類 ..........................................................................................................................28 現(xiàn)場排查及分區(qū)標準 ......................................................................................................28 山洪風險圖 ......................................................................................................................29 風險區(qū)確定 ......................................................................................................................30 臨界雨量確定 ..................................................................................................................30 規(guī)劃重點 ..........................................................................................................................31重點小流域防洪避險規(guī)劃報告 防避方案 ..........................................................................................................................316 防洪避險建設 .............................................................................................................................33 防洪工程建設 ..................................................................................................................33 水庫山塘除險加固 ..........................................................................................................37 水土保持 ..........................................................................................................................38 預警系統(tǒng)建設 ..................................................................................................................41 投資估算 ..........................................................................................................................44 效益分析 ..........................................................................................................................45 環(huán)境影響分析 ..................................................................................................................467 防洪避險管理體系 .....................................................................................................................50 山洪預警程序 ..................................................................................................................50 緊急避災程序 ..............................................................................................