【正文】 .....8 耕作層 ..........................................................................................................................8 土壤質(zhì)地 ......................................................................................................................8 耕作層表土剝離及移土培肥 ......................................................................................9 改良土壤 ......................................................................................................................96 灌溉與排水工程建設(shè)標(biāo)準(zhǔn) .......................................................................................................10 一般規(guī)定 ............................................................................................................................10 工程建筑物等級(jí)劃分 ................................................................................................10 灌溉標(biāo)準(zhǔn) ....................................................................................................................10 排水標(biāo)準(zhǔn) ....................................................................................................................12 防洪標(biāo)準(zhǔn) ....................................................................................................................12 供水標(biāo)準(zhǔn) ....................................................................................................................13 水質(zhì)標(biāo)準(zhǔn) ....................................................................................................................13IV 抗凍脹標(biāo)準(zhǔn) ................................................................................................................13 地震烈度標(biāo)準(zhǔn) ............................................................................................................14 水源工程 ............................................................................................................................14 塘堰工程 ....................................................................................................................14 引水工程 ....................................................................................................................14 機(jī)井工程 ....................................................................................................................15 雨水集蓄工程 ..............................................................................................................16 輸水工程 ............................................................................................................................17 灌溉渠道工程 ............................................................................................................17 管道輸水工程 ............................................................................................................18 噴、微灌工程 ....................................................................................................................19 噴灌工程 ....................................................................................................................19 微灌工程 ....................................................................................................................20 排水工程 ............................................................................................................................20 排水溝工程 ................................................................................................................20 暗管（溝）排水工程 ................................................................................................21 渠系建筑物 ........................................................................................................................22 一般規(guī)定 ....................................................................................................................22 水閘 ............................................................................................................................22 渡槽 ............................................................................................................................23 倒虹吸 ........................................................................................................................23 農(nóng)橋 ............................................................................................................................24 涵洞 ............................................................................................................................24 跌水與陡坡 ................................................................................................................25 斗門及農(nóng)門（制口） ................................................................................................25 量水設(shè)施 ....................................................................................................................25 隧洞 ..........................................................................................................................25 泵站與農(nóng)村輸配電工程 ....................................................................................................26 泵站 ............................................................................................................................26 輸電線路 ....................................................................................................................27 變壓器選擇 ................................................................................................................28V 配電裝置 ....................................................................................................................287 田間道路工程建設(shè)標(biāo)準(zhǔn) ...........................................................................................................29 一般規(guī)定 ............................................................................................................................29 田間道路分級(jí)與功能 ................................................................................................29 田間道路建設(shè)類型 ...............................................................