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《Chinese Journal of Underground Space and Engineering》 2011-04
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Design Method and Analysis of Forked Tunnel

Zhu Daojian(Shanghai Municipal Engineering Design General Institute(Group) Co.,Ltd.,Shanghai 200092,China)  
With the development of society and the increase of urban traffic,for the city and highway tunnels the construction of forked tunnel should be considered.In China,the design of forked tunnels is still in the stage of experience summing up and accumulating.For "Y"-shaped forked tunnel,the design methods are introduced in detail in respect of the layout,bifurcation transitional form,feasibility study and calculation.The steps about wide span tunnel transition to double-arch tunnel and then converted to small interval tunnel,key issues and relevant principles and methods are proposed.It provides a theoretical basis and guidance for design and construction of forked tunnel.
【CateGory Index】: U452.2
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