Abstract:

The conventional opencut method has some limitations and disadvantages in utility tunnel construction. Hence, the advantages and disadvantages of opencut method and shield method in design of utility tunnel on Huagong Road in Harbin are compared and discussed in detail. The reasons for selecting shield method are analyzed based on the present situation of ground transportation and underground pipelines of Huagong Road. And then the designs of crosssection form, lining structure and comprehensive shaft of the utility tunnel are emphatically introduced; the key problems that need to be considered specially during shield construction are presented and the corresponding solutions are put forward. Finally, it is explained that the shield construction of utility tunnel has higher promotion value and technical advantage, which broadens the technical means of utility tunnel construction and provides relevant technical reserve for the future development of utility tunnel.

Key words: utility tunnel, shield method, crosssection design, lining structure design, comprehensive shaft design