CivilEngineeringCivilengineering,theoldestoftheengineeringspecialties,istheplanning,design,construction,andmanagementofthebuiltenvironment.Thisenvironmentincludesallstructuresbuiltaccordingtoscientificprinciples,fromirrigationanddrainagesystemstorocket-launchingfacilities.土木工程学作为最老的工程技术学科，是指规划，设计，施工及对建筑环境的管理。此处的环境包括建筑符合科学规范的所有结构，从灌溉和排水系统到火箭发射设施。Civilengineersbuildroads,bridges,tunnels,dams,harbors,powerplants,waterandsewagesystems,hospitals,schools,masstransit,andotherpublicfacilitiesessentialtomodernsocietyandlargepopulationconcentrations.Theyalsobuildprivatelyownedfacilitiessuchasairports,railroads,pipelines,skyscrapers,andotherlargestructuresdesignedforindustrial,commercial,orresidentialuse.Inaddition,civilengineersplan,design,andbuildcompletecitiesandtowns,andmorerecentlyhavebeenplanninganddesigningspaceplatformstohouseself-containedcommunities.土木工程师建造道路，桥梁，管道，大坝，海港，发电厂，给排水系统，医院，学校，公共交通和其他现代社会和大量人口集中地区的基础公共设施。他们也建造私有设施，比如飞机场，铁路，管线，摩天大楼，以及其他设计用作工业，商业和住宅途径的大型结构。此外，土木工程师还规划设计及建造完整的城市和乡镇，并且最近一直在规划设计容纳设施齐全的社区的空间平台。ThewordcivilderivesfromtheLatinforcitizen.In1782,EnglishmanJohnSmeatonusedthetermtodifferentiatehisnonmilitaryengineeringworkfromthatofthemilitaryengineerswhopredominatedatthetime.Sincethen,thetermcivilengineeringhasoftenbeenusedtorefertoengineerswhobuildpublicfacilities,althoughthefieldismuchbroader土木一词来源于拉丁文词“公民”。在1782年，英国人JohnSmeaton为了把他的非军事工程工作区别于当时占优势地位的军事工程师的工作而采用的名词。自从那时起，土木工程学被用于提及从事公共设施建设的工程师，尽管其包含的领域更为广阔。Scope.Becauseitissobroad,civilengineeringissubdividedintoanumberoftechnicalspecialties.Dependingonthetypeofproject,theskillsofmanykindsofcivilengineerspecialistsmaybeneeded.Whenaprojectbegins,thesiteissurveyedandmappedbycivilengineerswholocateutilityplacement—water,sewer,andpowerlines.Geotechnicalspecialistsperformsoilexperimentstodetermineiftheearthcanbeartheweightoftheproject.Environmentalspecialistsstudytheproject’simpactonthelocalarea:thepotentialforairandgroundwaterpollution,theproject’simpactonlocalanimalandplantlife,andhowtheprojectcanbedesignedtomeetgovernmentrequirementsaimedatprotectingtheenvironment.Transportationspecialistsdeterminewhatkindoffacilitiesareneededtoeasetheburdenonlocalroadsandothertransportationnetworksthatwillresultfromthecompletedproject.Meanwhile,structuralspecialistsusepreliminarydatatomakedetaileddesigns,plans,andspecificationsfortheproject.Supervisingandcoordinatingtheworkofthesecivilengineerspecialists,frombeginningtoendoftheproject,aretheconstructionmanagementspecialists.Basedoninformationsuppliesbytheotherspecialists,constructionmanagementcivilengineersestimatequantitiesandcostsofmaterialsandlabor,scheduleallwork,ordermaterialsandequipmentforthejob,hirecontractorsandsubcontractors,andperformothersupervisoryworktoensuretheprojectiscompletedontimeandasspecified.领域。因为包含范围太广，土木工程学又被细分为大量的技术专业。不同类型的工程需要多种不同土木工程专业技术。一个项目开始的时候，土木工程师要对场地进行测绘，定位有用的布置，如地下水水位，下水道，和电力线。岩土工程专家则进行土...
