秦皇岛金舍汤河东岸基坑支护设计和实现土木工程(岩土)专业摘要基坑支护是指为保证地下结构施工及基坑周边环境的安全，对基坑侧壁及周边环境采用的支挡、加固与保护措施。基坑支护设计应根据场地的工程地质条件，结合周边环境情况，综合考虑施工条件，按照适用性、安全性及经济性原则进行。本次基坑支护设计共分为三段，即桩锚联合支护设计、喷锚网支护设计和土钉支护设计。各段基坑支护设计，必须严格按照相关规范的要求进行。首先，根据给定的工程地质勘察报告初步选定支护方案；其次，计算确定各个设计参数，并进行初步验算；再次，对设计结构进行内部稳定性分析验算；然后，对设计结构作外部稳定性验算；最后，优化并确定设计方案。关键词基坑支护；桩锚；喷锚网；土钉AbstractTheFoundationPitisamethodofretaining,reinforcingandprotectingforthepitwallandthesurroundingenvironment,inordertoensurethesafetyoftheundergroundstructureconstructionandthepitsurroundingenvironment.TheFoundationpitsupportdesignshouldbebasedonengineeringgeologicalconditionofthevenue,combinedwiththesurroundingenvironment,integratedconstructionconditions,inaccordancewiththeprinciplesofsuitability,safetyandeconomicbehavior.TheFoundationpitsupportdesignisdividedintothreesections,pile-anchorjointsupportingdesign,designofinjection-anchorsupportanddesignofsoilnailing.EverysectionoftheFoundationpitsupportmustbeconductedstrictlyinaccordancewiththerequirementsoftherelevantspecification.Firstofall,initiallyselectsupportingprogramsaccordingtoagivenengineeringgeologicalinvestigationreport;Secondly,calculateanddeterminethedesignparameters,andcheckinitially;Thirdly,checkandanalysistheinternalstabilityofthedesignstructure;Then,checktheexternalstabilityofthedesignstructure;Finally,optimizeanddeterminethedesign.KeywordstheFoundationPit；Pile-anchor；Injection-anchor；SoilNailing目录摘要.......................................................................................................................IAbstract.................................................................................................................II第1章绪论.........................................................................................................11.1基坑工程概况.......................................................................................11.2基坑支护设计原则...............................................................................21.3基坑支护设计的一般规定...................................................................2第2章支护方案选择.........................................................................................42.1工程概况...............................................................................................42.1.1场地土层参数..................................................................................42.1.2基坑周边环境情况..........................................................................42.1.3水文地质条件..................................................................................52.1.4支护方案选择..................................................................................52.2工程监测...............................................................................................5第3章基坑地面超载.........................................................................................63.1汽车荷载...............................................................................................63.1.1车道荷载......................
