Gantry Crane Hoisting Technique Employed Beneath Cover Plate in Semi-covering System of Subway Station Foundation Excavation
With the increasing scale of subway project construction year by year,a large number of deep foundation excavation construction projects for subway station are also under construction.The half-cover excavation method is an effective measure to quickly restore the surface traffic and ensure the normal excavation of the foundation excavation during the construction of the foundation excavation of the subway station.However,the hoisting of foundation excavation steel support during the construction using the half-cover excavation method has always been a difficulty in the construction of foundation excavation support.In accordance with the semi-covered system of deep foundation pits in subway stations,a lifting technology of gantry cranes under cover plates is proposed.Meanwhile,based on the practical engineering experience,the key technical points of each link in the hoisting construction process are sorted out.The risk analysis is carried out for the hoisting construction process of the gantry crane under the cover plate,and the corresponding emergency treatment measures are put forward.
subway stationsdeep foundation excavationsupportshalf-cover excavation methodhoistinggantry crane
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NSTL
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维普
