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1、本科本本科毕业设计托县托东路到伍把什村桥梁墩柱式基础设计学院：能源与交通工程学院专业：道路桥梁与渡河工程姓名：毕温建学号：111612805指导教师：李海军职称：实验师论文提交日期：二Ο一五年六月摘要随着我国经济高速发展，高层建筑迅速兴起,而且我国地域辽阔，在工程建设中会面临各种不良的地质，所以对基础要求逐渐变高。当建筑场地浅层的土质没有办法满足建筑物对地基变形和强度等各个方面的需求，而且又不便对地基土处理时，就要利用下部坚实土层或者岩层作为建筑物的持力层，也就是采用深基础处理方案，这里桩基础的利用最为广泛。桩基础具有承载力高、
2、沉降量小、可以抵抗水平和上拔力、减震和抗震的特点，所以桩基础已成为土质不良地区修造建筑物广泛采用的基础形式。常见的桩基础有：矩形扩大基础、U形扩大基础、承台桩基础、单排桩柱基等。本文在调查托克托县五申镇人民政府察托东路到伍把什村公路桥工程地质条件及工程概况的基础上，根据周边环境条件，采用了墩柱式基础，并利用了桥梁博士软件以及《公路桥涵地基与基础设计规范》JTGD63-2007等规范对桩的单桩承载力、桩身截面承载力和桩基截面承载力进行了验算，通过桥梁博士软件验算得出其单桩承载力和桩身截面承载力、裂缝、沉降量均满足要求，最终确定桩基
3、础设计。关键词：单桩轴向承载力；桩身截面内力；单桩沉降量AbstractGrewrapidlyalongwithourcountryeconomyhighspeeddevelopment,high-risebuilding,bridgeconstructiondevelopmentisaccelerated,willfaceallkindsofbadgeologyinengineeringconstruction,whentheshallowsoilcannotmeetthebuildingofconstructionsites
4、offoundationdeformationandstrengthrequirement,andtheinconvenienceoffoundationtreatment,willuseofsubsoil,thelowerthesoilorrocksolidasdeepfoundationtreatmentschemeisadopted,andthepilefoundationismostwidelyused.Pilefoundationwithhighbearingcapacity,smallsettlement,canre
5、sisthorizontalandpullingforce,shockabsorption,andthecharacteristicsoftheseismic,sopilefoundationhasbecomeabadsoilregionintheworkofbuildingformthebasisofwidelyused.Commonpilefoundationare:rectangularextending,u-shapedexpansion,Bearingplatformofpilefoundation,singlepil
6、ecolumnbase,etc.Basedontheinvestigationoffive"togtohcountytownpeople'sgovernmentwassupportingeastroadtowutheassortedvillageroadbridge,onthebasisofengineeringgeologicalconditionsandengineeringgeneralsituation,accordingtothesurroundingenvironmentcondition,theabutmentfo
7、undation,DrSoftwareandbyusingthebridgeaswellasthehighwaybridgestandardaboutfoundationandfoundationdesignJTGD63-2007standardforsinglepilebearingcapacityofpile,pilebodysectionbearingcapacityandpilefoundationsectionbearingcapacitycalculation,throughDrBridgesoftwarecalcu
8、latingthebearingcapacityofsinglepileandbearingcapacityofpilesectionmeettherequirements,ultimatelydeterminethepilefoundationdesign.K
