昌寧隧道豎井輔助正洞施工技術(shù)研究
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中圖分類號：U455.8 文獻標志碼：A 文章編號：1005-8249（2025）03-0140-05
DOI：10.19860/j.cnki.issn1005-8249.2025.03.025
Abstract：To explore the technologyofusingshafttoassstconstructioninsuper-long highway tunnel，thearticle makesa studyonthe projectdesign，shaftconstructionmethod，constructioofshaft totunel，andcomesthefolowing conclusions：It isfeasibletouseshaftstoauxliarymain tunnelconstructioninextremelylonghighwaytunnelsundercomplexgeological conditions.Usingthe"mainshaft method"andtheinitialsupport structureofconcrete，full-envelopeconstruction methodcan safelyandeficientlycompletetheexcavationofshaftsandtheconstructionofturning tunnelsThesuccesfuluseofshaftsto ssistintheconstructionofthemaintunnelinChangning Tunnelhasfullyverifiedthetechnical feasibilityandconomic applicabilityofusing verticalshaftstoasistintheconstructionofthemain tunnelinextremelylongtunnelsundercomplex geological conditions. The findings may serve as practical guidelines for similar engineering applications.
KeyWords：super-long tunnel；shaft；auxiliaryconstruction；frontwelldrillmethod；modeconcreteinitialsupport; full -envelope construction method
0 引言
隨著我國高速公路不斷向西南山區(qū)延伸與擴張，隧道工程逐漸向“更長、更深”的方向發(fā)展，而特長隧道施工僅依靠進出口兩端掘進難以滿足工期要求。（剩余5436字）