【作者】 朱合华； 刘学增；

【Author】 Zhu Hehua,Liu Xuezeng (Department of Geotechnical Engineering,Tongji University,Shanghai 200092 China)

【机构】 同济大学地下建筑与工程系；

【摘要】 以浙江上三线高速公路隧道为工程背景,根据现场实测数据,并利用有限元施工模拟方法,分析了仰拱不同的施工工序,即在初期支护完成后开挖仰拱和二衬施作完成后开挖仰拱对隧道的收敛变形、拱顶沉降及结构内力的影响,为隧道仰拱的合理化施工提供了理论依据。更多还原

【Abstract】 Taking the throughway tunnel in Zhejiang province as the project background,according to the measured data and using FE technique, the paper analyzed the influence of different construction sequences of invert arches,i.e.,constructing the arches after initial lining and after constructing secondary lining,on the convergent deformation,structural force and interaction force between surrounding rock and structure,which provides guidance for rationalization construction of tunnel invert.更多还原