[北京]高层住宅楼cfg桩复合地基处理设计及施工方案

分类号密级XX（XX）毕业设计（论文）题目XXC地块A05号住宅楼CFG桩复合地基处理设计及施工英文题目学生姓名院（系）XX学院专业土木工程学号指导教师职称教授XX（XX）学士学位论文摘要目前，随着我国经济的高速发展，工程建设规模和数量的急剧扩大，对原有天然软弱地基的处理成为工程设计和施工中越来越被关注的环节之一。CFG桩复合地基法以其用材经济、施工快捷、加固效果良好等优点在工程实践中得到了广泛的应用，特别是近年来CFG桩复合地基多种设计方法的提出与实践，极大地推动了复合地基理论和实践的发展，丰富了工程建设中的地基处理技术。本文首先仔细回顾了复合地基的一些发展历史和研究成果；其次，在现有CFG桩复合地基研究成果的基础上对CFG桩复合地基承载特性、作用机理作了相应的分析和介绍；再次，结合实际工程——XXC地块A05号住宅楼CFG桩复合地基处理，按照CFG桩复合地基进行了地基设计计算，用恰当的模型验算了相应复合地基的承载力与沉降量，验证了理论的可行性；最后，结合实际工程对CFG桩复合地基的施工工艺作了较为系统的介绍。关键词：CFG桩；复合地基；承载力；沉降量ABSTRACTNowadays,withChina'srapideconomicdevelopmentandrapidexpansionofthescaleandquantityinengineeringconstruction，treatmenttechnologyofweakfoundationinoriginallynaturalstatusbecomeoneofthekeyproblemgraduallyingeotechnicaldesigningandpracticing.Asitsgreatadvantagessuchaseconomicalmaterial,fastspeedofconstructionandperfecteffectonconsolidating,methodofCFGpilescompositefoundationhasbeenwidelyused,particularlyinrecentyearswhenvariousmethodsofdesignandpracticeareappliedforCFGpilescompositefoundation，whichhasgreatlypromotedthedevelopmentoftheoryandpracticeofcompositefoundationandenrichedthetechnologyoffoundationtreatmentinengineeringconstruction.Firstly,somedevelopmenthistoryandresearchresultsofcompositefoundationwasreviewedinthisarticle;Secondly,basedontheexistingresearchresultsofCFGpilescompositefoundation,theload-bearingcharacteristicsandthemechanismofCFGpilescompositefoundationwassystematicallyanalysisedandintroduced;Onceagain,treatmenttechnologyofCFGpilescompositefoundationisappliedinarealengineeringconstruction,foundationtreatmentofbuildingA05,CsegmentinChangying.DesignandcalculationoffoundationaredoneaccordingtoCFGpilescompositefoundation,withcheckingthebearingcapacityandsettlementofcompositefoundation.Subsequently,theconstructionprocessofCFGpilescompositefoundationisintroducedsystematically.Keywords:CFGpile;Compositefoundation;bearingcapacity;settlementXX（XX）学士学位论文目录1绪论.................................................................................................................................11.1选题背景及意义......................................................................................................11.2复合地基概述..........................................................................................................11.3复合地基的发展概况..............................................................................................21.4CFG桩复合地基....................................................................................................41.4.1CFG桩复合地基及其发展概况.................................................................41.4.2CFG桩复合地基工作原理.........................................................................41.4.3CFG桩复合地基工程特性..........................................................................51.5本文主要内容..........................................................................................................72工程概况.............................................................................................................................92.1工程简介..................................................................................................................92.1.1项目概况.......................................................................................................92.1.2场地周边情况.............................................................................................102.2工程地质和水文地质条件....................................................................................102.2.1地形地貌.....................................................................................................102.2.2工程地质条件.............................................................................................102.2.3水文地质条件.............................................................................................113CFG桩复合地基施工工艺的选择与设计参数的确定....................................................123.1CFG桩施工工艺的选择.......................................................................................123.2设计参数的确定....................................................................................................123.2.1CFG桩复合地基构造要求........................................................................123.2.2设计参数的确定.........................................................................................134CFG桩复合地基的设计计算............................................................................................144.1设计依据与要求....................................................................................................144.1.1设计依据.....................................................................................................144.1.2设计要求.....................................................................................................144.2设计计算................................................................................................................144.2.1CFG桩复合地基设计要点........................................................................144.2.2CFG桩复合地基设计思想........................................................................144.2.3设计计算步骤.................