隧道施工-项目九 风水电作业和施工通风 Project 9 Wind water and power operation and construction ventilation-1742204523497

Tunnelconstruction

隧道施工

任务三施工供水与排水——施工供水Task3Constructionwatersupplyanddrainage——Constructionwatersupply项目九风水电作业和施工通风Project9Wind,waterandpoweroperationandconstructionventilation2知识目标通过本任务的学习，学生应掌握隧道供水方式；了解水质要求。。KnowledgeobjectivesThroughthestudyofthistask,studentsshouldmasterthemodeoftunnelwatersupply;Understandwaterqualityrequirements.学习目标

Learningobjectives3能力目标通过本任务的学习，学生应具备选择合理供水方式的能力。。AbilityobjectivesThroughthestudyofthistask,studentsshouldhavetheabilitytochooseareasonablewayofwatersupply.学习目标

Learningobjectives隧道施工供水

Watersupplyfortunnelconstruction1.水质要求凡无臭味﹑不含有害矿物质的洁净天然水都可作施工用水，但仍应做好水质化验工作，以便心中有数。生活用水更要求新鲜清洁。1.WaterqualityrequirementsAllcleannaturalwaterwithoutodorandharmfulmineralscanbeusedasconstructionwater,butthewaterqualitytestshouldstillbedonetoknow.Domesticwaterneedstobefreshandclean.2.水源：（1）山上自流水或泉水；（2）河水；（3）钻井取水。3.供水方式：有高位自然水源时，可建水池蓄水利用；无条件建高位水池的隧道，则采用增压泵供水。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构造：开口水池，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：到工作面是水压不小于0.3MPa：（折合为水柱高h=30m）H≥1.2（h+h损）⑶容积：（50~100m3）一昼夜用水量的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.管路的安装管径大小：水管的直径应根据最大供水量、管路长度、弯头数量，闸阀等条件计算确定；管道铺设