畢業(yè)設(shè)計(jì)--鄉(xiāng)鎮(zhèn)農(nóng)田水利工程設(shè)計(jì)

1、平江縣大坪鄉(xiāng)、虹橋鎮(zhèn)等兩個(gè)鄉(xiāng)鎮(zhèn)農(nóng)田水利工程設(shè)計(jì)平江縣大坪鄉(xiāng)、虹橋鎮(zhèn)等兩個(gè)鄉(xiāng)鎮(zhèn)農(nóng)田水利工程設(shè)計(jì)目錄1前言................................................................................................................................21.1設(shè)計(jì)的必要性...............................

2、...............................................................................21.2設(shè)計(jì)目標(biāo)......................................................................................................................21.3國(guó)內(nèi)外農(nóng)田節(jié)水灌溉現(xiàn)狀

3、..........................................................................................22綜合說(shuō)明........................................................................................................................42.1

4、灌區(qū)概況......................................................................................................................42.2自然條件..........................................................................................

5、............................42.2.1地形地貌..................................................................................................................42.2.2氣象............................................................

6、..............................................................42.2.3土壤..........................................................................................................................42.2.4植被....................

7、......................................................................................................42.2.5水文與水文地質(zhì)......................................................................................................42.

8、2.6工程地質(zhì)..................................................................................................................52.3灌區(qū)存在問(wèn)題.........................................................................................

9、....................53項(xiàng)目區(qū)水資源供需平衡分析........................................................................................53.1灌溉水源..........................................................................................

10、...........................53.2供水量分析.................................................................................................................53.2.1大坪鄉(xiāng)灌區(qū)............................................................

11、..................................................63.2.2虹橋鎮(zhèn)灌區(qū)..............................................................................................................63.3灌溉需水量預(yù)測(cè)......................................

12、...................................................................73.4水資源供需平衡分析.................................................................................................83.4.1原則與方法................................

13、..............................................................................83.4.2水資源平衡計(jì)算......................................................................................................84灌溉與排水工程設(shè)計(jì)................

14、....................................................................................94.1灌溉渠道.....................................................................................................................91鄉(xiāng)鎮(zhèn)農(nóng)田水利工程設(shè)

15、計(jì)鄉(xiāng)鎮(zhèn)農(nóng)田水利工程設(shè)計(jì)摘要：本設(shè)計(jì)為灌溉與排水工程設(shè)計(jì)，本文主要是對(duì)湖南省平江縣大坪鄉(xiāng)、虹橋鎮(zhèn)灌區(qū)渠道灌溉改造，通過(guò)對(duì)灌區(qū)的分析供水量和預(yù)測(cè)需水量，最后進(jìn)行供水需水平衡分析，了解區(qū)內(nèi)斗級(jí)渠道與灌排渠道采用續(xù)灌的灌溉方式，農(nóng)級(jí)渠道采用輪灌方式。設(shè)計(jì)渠道與排水道縱斷面，縱斷面設(shè)計(jì)應(yīng)根據(jù)沿溝的地形條件，排水溝水位推算結(jié)果和橫斷面設(shè)計(jì)成果，進(jìn)行水位銜接，保證沿程排水暢通，并在此基礎(chǔ)上繪制排水溝道的縱斷面圖。關(guān)鍵詞：渠道灌溉；水力計(jì)算；水平衡分析

16、；節(jié)水建筑物TheDesignofWaterConservancyIrrigationProjectsinTwoTownssuchasDapingTownshipHongqiaoTownPingjiangCounty(ientScience&TechnologyCollegeofHunanAgriculturalUniversityChangsha410128China)Abstract:Thisdesignismainlyfirrig

17、ationdrainageengineeringdesignthispaperismainlyinPingjiangCountyHunanProvinceDapingTownshipHongqiaoTownirrigationchannelirrigationtransfmationthroughtheanalysisofwatersupplyfecastwaterdemfinallywatersupplywaterbalanceana

18、lysistoundersttheareaBucketlevelchannelsirrigationdrainagechannelsusingcontinuedirrigationirrigationmethodsagriculturalgradechannelsusingwheelirrigation.Designchanneldrainagechannellongitudinalsectionlongitudinalprofiled

19、esignshouldbebasedontheterrainalongtheditchconditionsdrainswaterlevelcalculationresultscrosssectionaldesignresultsthewaterlevelconvergencetoensuresmoothdrainagealongthewayonthisbasistodrawthedrainagechannelProfileview.Ke