任务精读：辅助坑道设置技术（双语）课件讲解.pptx

隧道施工技术TunnelConstructionTechnologyServiceGalleryLayoutTechnology辅助坑道设置技术

辅助坑道设置技术目录TableofContentsServiceGalleryLayoutTechnology辅助坑道设置技术概述1OverviewofServiceGalleryLayoutTechnology辅助坑道2ServiceGallery课程小结3Summary

辅助坑道设置技术ServiceGalleryLayoutTechnologyunderwhatcircumstancesshouldservicegallerybelaidout什么情况下需要设置辅助坑道呢Howtolayoutservicegallery如何设置辅助坑道Whatsthefunctionofservicegallery辅助坑道有什么作用

辅助坑道设置技术概述OverviewofServiceGalleryLayoutTechnology01

辅助坑道设置技术辅助坑道是指在修筑长隧道时，由于施工需要，在近旁另外开挖的一条通到正洞中线位置的小断面坑道。辅助坑道的设置需要考虑正洞隧道的长度，隧道所处地地形、地质及水文，施工期限与组织等问题。ServiceGalleryLayoutTechnologyServicegalleryisasmall-sectiongalleryadditionallyexcavatednearthecenterlineofthemaintunnelduetoconstructionneedsoflongtunnels.Thelengthofthemaintunnel,thetopography,geologyandhydrologyofthetunnel,theconstructionperiodandorganizationshallbeconsideredinthelayoutoftheservicegallery.辅助坑道ServiceGallery横洞Transversegallery平行导坑Paralleladit斜井Inclinedshaft竖井Shaft辅助坑道的作用:Functionsofservicegallery:以加快施工速度，缩短工期;Speeduptheconstructionandshortentheconstructionperiod;改善施工条件、减少施工干扰;Improveconstructionconditionsandreduceconstructioninterference;有利于合理布置施工中的管路、线路。Facilitatereasonablelayoutofpipelinesandlinesinconstruction.辅助坑道设置技术概述OverviewofServiceGalleryLayoutTechnology

辅助坑道ServiceGallery02

横洞长度不超过隧道长度的1/10~1/7；与隧道中线交角40°~45°；与隧道交界处，底部高程相同，向外3‰的下坡。它是指在隧道侧面修筑的与隧道相交的坑道。MaintunnelTransversegallery横洞Transversegallerywhichreferstothegallerybuiltonthesideofandintersectingwiththetunnel.Thelengthoftransversegalleryshallnotexceed1/10~1/7ofthetunnellength;Angleofintersectionwithtunnelcenterline:40°~45°;Atthejunctionwithatunnel,thebottomelevationisthesame,andthereisadownwardslopeofnotlessthan3‰outwardsMaintunnelMaintunnelTransversegalleryOrthogonalPlaneMaintunnelMaintunnelTransversegallery辅助坑道设置技术ServiceGalleryLayoutTechnology横洞Transverseg