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1、佛岗橄榄城6#楼工程土方开挖方案编制人:审核人:批准人:河南省第一建筑工程集团有限责任公司在当今的科学发展飞速的新时代,越来越多的高科技开始运用于我们的学习、工作和生活当中。科技,已成为我们走向高质量生活的一座桥梁,一根绳梯。ofvision.3,build,fittinginwiththeurbanmasterplaninYibincityrapidrailtransitlongtermnetwork,aswellasthevisionofYibincity,andfuturedevelopmentofrailtransitnetwork.4,
2、Yibincity,preliminaryrailtrafficlevelsservicelevels,systemmodel,andtechnicalstandards.5,toensurethatnetworkcanbeimplemented.6,stableconditionsforplanningandsupportingofYibincitytracktrafficconstructionandformationofrailtransitindustry,provideconditionsforthestart-upanddevelop
3、mentofrailtransitinYibincity.1.7technicalcoursetechnologyistheproject'sresearchprogramandresearchideas.Technologyreflectsthevariousstagesintheprocess,logicalrelationsbetweenvariouslevels,research,techniquesandphases.Networkplanningprocessthewholeprocesscanbedividedintofourpar
4、ts,namely,backgroundresearch,networkarchitectureresearch,planningandimplementationofresearchandprogramminginterfaces.Figure1.7-1Yibincityrailtransitnetworkplanningtechnologyroadmapplanninginterfaceismainlyresponsiblefornetworkplanninginterfacewithfollow-upplanningtasks.Networ
5、kplanningUrbanplanningsysteminatransitionalposition,onlinenetworkplanningiscompleted,willbecarriedoutassoonaspossiblethefollowingplanningprojects:1,detailedcontrolofthelandofrapidrailtransitnetworkplanning;2,thepartitioningfornetworkplanning;3,jointplanningofrailtransportandu
6、rbantransportinotherways;Detailedtechnicalcoursesseebelow.Figure1.7-2Generaltechnologyroutefigure2ndchapterCitystatusanddevelopmentplanning2.1citybasicprofile2.1.1佛岗橄榄城I标段6#楼工程土方开挖方案一、概述依据佛岗橄榄城6#楼工程地质报告及2008年8月16日中午建设单位、勘察单位、监理单位及施工单位四方关于6#楼基坑开挖方案会议达成的意见,6#楼拟对其基础下软卧层采用级配砂石换填方
7、案进行处理。具体为,6#楼按图纸基础筏板底标高下挖1.0m~2.5m,然后用级配砂石进行换填,换填至原设计图基础筏板地表高处。二、开挖方案本工程中6#楼基础形式为筏板基础,埋深约为3.0M,加上换填厚度后,6#楼西部开挖深度约为5m,东部开挖深度约为4m,中间深度约为4.5m,开挖深度较大,结合现场施工条件及工程情况,计划采用放坡开挖。砂石换填范围及基坑放坡详见下图:注:压力扩散角按设计院要求以300计算。开挖时采用机械大开挖配合人工清底方案。开挖时采用分层开挖,第一层挖至筏板基地标高,挖开后应报项目部,会同建设、监理方、勘察方对实际土层状况进行
8、现场勘察,若无异状后进行第二层开挖,第二层挖至设计砂石垫层底标高处。具体开挖时采用沟端开挖方式进行,5#挖掘机可从东向西倒退开挖,6#楼