Discussion on Application of Prefabricated Technology in Construction of Utility Tunnel
As an important carrier of municipal pipeline,utility tunnel is one of the important forms of urban underground space development now.On the premise of urban"double carbon"governance and green development,taking the construction of utility tunnel as the starting point,combined with the application of existing assembly technology in the construction of utility tunnel,the advantages and disadvantages of two kinds of assembly structures,such as full prefabrication and superimposed assembly are compared.The former has the features of large component weight,low transport efficiency and poor waterproofness,which is suitable for the areas with the wide site,good transport conditions and relatively scarce groundwater.The latter has the characteristics of small component weight,high transport efficiency,low cost,simple construction,short duration and good waterproofness of node,which is more suitably taken as the optimization scheme for the construction of utility tunnel.Some key technical points of assembly technology in the engineering practice are given.
utility tunnelprefabricated technologyunderground space development
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