03-06-2015 дата публикации
Номер: CN104674625A
Принадлежит:
The invention discloses an underway structure, which comprises a prefabricated concrete base, a prefabricated steel pipe, a carriageway plate, a pit backfill and an upper pavement, wherein the prefabricated concrete base is located in a pit; the prefabricated steel pipe is located on the base; the carriageway plate is located in the prefabricated steel pipe; the upper pavement is arranged on the upper surface of the pit backfill. The underway structure is suitable for an open cut method for the underway; the base and the steel pipe can be prefabricated in advance before the pit is complete; the base and the steel pipe can be directly mounted after the pit is finished; a cast-in-situ member is not needed; the construction cycle is greatly shortened; and the traffic impact on pedestrian and vehicles on the pavement is reduced. Meanwhile, the invention further discloses a construction method employing the structure. The method is good on construction safety and short in construction cycle.
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