隧道施工-項(xiàng)目九 風(fēng)水電作業(yè)和施工通風(fēng) Project 9 Wind water and power operation and construction ventilation-1742204523497

Tunnelconstruction

隧道施工

任務(wù)三施工供水與排水——施工供水Task3Constructionwatersupplyanddrainage——Constructionwatersupply項(xiàng)目九風(fēng)水電作業(yè)和施工通風(fēng)Project9Wind,waterandpoweroperationandconstructionventilation2知識目標(biāo)通過本任務(wù)的學(xué)習(xí)，學(xué)生應(yīng)掌握隧道供水方式；了解水質(zhì)要求。。KnowledgeobjectivesThroughthestudyofthistask,studentsshouldmasterthemodeoftunnelwatersupply;Understandwaterqualityrequirements.學(xué)習(xí)目標(biāo)

Learningobjectives3能力目標(biāo)通過本任務(wù)的學(xué)習(xí)，學(xué)生應(yīng)具備選擇合理供水方式的能力。。AbilityobjectivesThroughthestudyofthistask,studentsshouldhavetheabilitytochooseareasonablewayofwatersupply.學(xué)習(xí)目標(biāo)

Learningobjectives隧道施工供水

Watersupplyfortunnelconstruction1.水質(zhì)要求凡無臭味﹑不含有害礦物質(zhì)的潔凈天然水都可作施工用水，但仍應(yīng)做好水質(zhì)化驗(yàn)工作，以便心中有數(shù)。生活用水更要求新鮮清潔。1.WaterqualityrequirementsAllcleannaturalwaterwithoutodorandharmfulmineralscanbeusedasconstructionwater,butthewaterqualitytestshouldstillbedonetoknow.Domesticwaterneedstobefreshandclean.2.水源：（1）山上自流水或泉水；（2）河水；（3）鉆井取水。3.供水方式：有高位自然水源時，可建水池蓄水利用；無條件建高位水池的隧道，則采用增壓泵供水。隧道施工供水

Watersupplyfortunnelconstruction2.Watersource:(1)Runningwaterorspringwateronthemountain;(2)Riverwater;(3)Drillingwater.3.Watersupplymode:Whenthereisahigh-levelnaturalwatersource,apoolcanbebuiltforwaterstorageandutilization;Boosterpumpshallbeusedforwatersupplyinthetunnelwithunconditionalhigh-levelpool.4.蓄水池要求⑴構(gòu)造：開口水池，一般采用石砌。4.Reservoirrequirements(1)structure:openpool,generallymadeofstone.隧道施工供水

Watersupplyfortunnelconstruction4.蓄水池要求⑵位置：到工作面是水壓不小于0.3MPa：（折合為水柱高h(yuǎn)=30m）H≥1.2（h+h損）⑶容積：（50~100m3）一晝夜用水量的1/2~1/10隧道施工供水

Watersupplyfortunnelconstruction4.Reservoirrequirements(2)location:Thewaterpressuretotheworkingfaceisnotlessthan0.3MPa:(convertedintowatercolumnheighth=30m)H≥1.2(H+Hloss)(3)volume:(50~100m3)1/2~1/10ofwaterconsumptioninadayandnight4.PipelineinstallationPipediameter:thediameterofwaterpipeshallbecalculatedanddeterminedaccordingtothemaximumwatersupply,pipelinelength,numberofelbows,gatevalveandotherconditions;Thepipelayingshallensurethequalityandnowaterleakage;Maingatevalveshallbeinstalledonthemainoutputpipelineofwaterpipe,andsubgatevalveshallbeinstalledevery300m~500monthemainpipeline;Thepipelineinthetunnelshallbelaidontheoppositesideofthecableandwire,whichshallnothinderthetransportation.Whenitisonthesamesideastheditch,itshallnotaffectthedrainage;Antifreezingmeasuresshallbetakenincoldareas.隧道施工供水

Watersupplyfortunnelconstruction4.管路的安裝管徑大?。核艿闹睆綉?yīng)根據(jù)最大供水量、管路長度、彎頭數(shù)量，閘閥等條件計(jì)算確定；管道鋪設(shè)