Final joint transporting base and construction method

Abstract

The invention discloses a final joint transporting base and a construction method. The final joint transporting base comprises concrete layers arranged on a barge deck and sleeper layers next to the upper portions of the concrete layers. The concrete layers are symmetrically arranged with respect to the center lines of the width direction and the length direction of the barge deck, and the sleeper layers are formed by horizontally laying a plurality of sleepers next to one another; and a plurality of limiting block frames making contact with the sleeper layers are arranged on the barge deck. According to the final joint transporting base and the construction method, the final joint transporting base is designed to be of a structure that the concrete layers and the sleeper layers are combined, the structure can eliminate the impacts brought by the uneven surface of the deck, meanwhile deformation of the ship body deck in the transportation process can be avoided, the bearing capacity of the barge deck is ensured, and thus the effects of the high overall planeness precision, low manufacturing cost, simple construction technology and good stiffness are achieved.

Description

technical field [0001] The present invention relates to the field of marine transportation, in particular to a final joint transport base, and in particular to a construction method for the final joint transport base. Background technique [0002] The final joint manufacture of the submarine immersed tube tunnel is to prefabricate the steel shell first, then pour concrete into the steel shell on the barge, and finally transport it to the designated location for lowering. The flatness of the bottom surface of the final joint is high, and the overall flatness requires It is controlled within ±10 mm. In this process, the base needs to be used to support the final joint. At present, the commonly used base structures in China include steel structures, concrete structures, and pier wood commonly used in large-scale transportation; however, the cost of steel structure bases High, difficult construction and long construction period; the concrete structure base is heavy and rigid, an...

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Problems solved by technology

[0002] The final joint manufacture of the submarine immersed tube tunnel is to prefabricate the steel shell first, then pour concrete into the steel shell on the barge, and finally transport it to the designated location for lowering. The flatness of the bottom surface of the final joint is high, and the overall flatness requires It is controlled within ±10 mm. In this process, the base is needed to support the final joint. At present, the types of base structures commonly used in China include steel structures, concrete structures, and pier wood commonly used in large-scale transportation; however, the cost of steel structure bases High, difficult construction and long construction period; the concrete structure base is heavy and rigid, the deformation of the hull during transportation will cause concrete cracking, and the concrete needs a certain curing period, resulting in a long construction period; due to the uneven hull deck of the barge, the pier The way of wood is difficult to meet the overall flatness control requirements of the base

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