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本科学生毕业设计???公寓基坑支护结构设计院部名称：土木与建筑工程学院专业班级：土木工程（岩土）???学生姓名：??指导教师：??????职称：高工教授黑龙江工程学院二○一四年六月TheGraduationDesignforBachelor'sDegreeDesignof???FlatsFoundationDitchSupportingStructureCandidate：???Specialty：CivilEngineeringClass：???Supervisor：Profseeor.???????LecturerEngineer.?????HeilongjiangInstituteofTechnology2014-06·Harbin黑龙江工程学院本科生毕业设计I摘要本设计拟建???公寓工程位于哈尔滨市，其南临南环路，东临美食商城，北侧为运动商城，西侧为居民区。拟建建筑物地面以上7层，地下2层，总建筑面积41798m2。经地质勘查，地基土层主要由杂填土、粉土、粉质黏土、黏土构成。建筑±0.00相当于绝对标高33.96m，整平后地面标高为33.50m，基坑开挖深度为9.0m，地下室采用框架结构。主体基坑采用三种不同的支护体系：第一种是钢板桩锚杆支体系，第二种是土钉墙支护体系，第三种是混凝土桩锚杆支护体系。基坑采用喷射井点+止水帷幕降止水。本次设计的主要内容包括：支护方案的选择、钢板桩锚杆设计计算、混凝土桩锚杆设计计算、土钉墙设计计算、基坑的稳定性验算、基坑降止水等。经验算，该基坑设计合理，方案可行，可满足基坑土方开挖，地下室结构施工和对周围环境保护的要求。关键词：深基坑支护；钢板桩；混凝土桩；土钉墙；基坑降水；基坑监测黑龙江工程学院本科生毕业设计IIABSTRACTThisdesignfor????ifoundationpitsupportingstructuredesignofthefoundationpitislocatedinHarbincity,Heilongjiangprovince,inthefoundationpitsizeis4050.Thefieldareaterrainrulesrectangleonthewhole,excavationdepthof9m,forthelightmarket,onthewestsideoffoundationpitinrecentdistanceis4m,thenorthside,forrealestatecompanyfromfoundationpitrecentdistanceof18m,bridgeroad,onthesouththestorehouseoffoundationpitinrecentdistanceof16m,throughschemecomparison,finallydeterminethewestadoptssteelsheetpilesupportstructureandsoilnailingwallsupportingstructureisusedinthesouththenorthbyconcretepileplusanchorsupportingstructure.Thisdesignmaincontentincludes:designschemecomparison;Earthpressurecalculation;Calculationofretainingstructure;Calculatingstabilityoffoundationpit;Foundationpitprecipitationofwaterstopdesign;Foundationpitmonitoringschemedesign.Keywords:Deepfoundationpit；Steelsheetpile；Pile；Soilnailingwall；Foundationpitdewateringoffoundationpitmonitoring黑龙江工程学院本科生毕业设计1目录摘要.........................................................................................................................................IABSTRACT........................................................................................................II第1章绪论.......................................................................................................11.1选题目的和意义.......................................................................................................11.2国内外研究现状......................................................................................................21.3基坑工程概况..........................................................................................................21.3.1工程概况.......................................................................................................21.3.2周边环境.......................................................................................................31.4地质条件..................................................................................................................41.4.1工程地质条件...............................................................................................41.4.2水文地质条件...............................................................................................41.5拟解决的主要问题..................................................................................................4第2章基坑方案选择及确定..........................................................................52.1基坑支护设计基本要求..........................................................................................52.2基坑支护方案选择及确定......................................................................................52.2.1支护方案的选择...........................................................................................52.2.2支护结构体系的比较...................................................................................72.2.3支护结构体系的确定...................................................................................72.3本章小结..................................................................................................................7第3章土压力计算..........................................................................................83.1基坑南侧土压力计算..............................................................................................83.2基坑东侧土压力计算..............................................................................................93.3基坑北侧土压力计算............................................................................................103.4基坑西侧土压力计算............................................................................................113.5本章小结................................................................................................................12黑龙江工程学院本科生毕业设计2第4章混凝土桩锚杆支护设计....................................................................134.1基本信息................................................................................................................134.2结构计算................................................................................................................164.3截面计算................................................................................................................194.4锚杆计算........................................................................................