Barging-out method for non-self-floating immersed tube

Abstract

The invention relates to the technical field of immersed tube tunnels, in particular to a barging-out method for a non-self-floating immersed tube. The method comprises the following steps of: submerging the non-self-floating immersed tube along with a semi-submersible barge, twisting and moving a mounting barge to sleeve the non-self-floating immersed tube and then butting the mounting barge with the non-self-floating immersed tube, performing secondary fitting-out operation, providing hoisting force for the non-self-floating immersed tube by using the mounting barge, and then driving the non-self-floating immersed tube to realize barging-out through the twisting and moving mounting barge. Thus, safe barging-out of the non-self-floating immersed tube which cannot automatically float is realized, and a working procedure is simple and rapid. Compared with a traditional mode that the self-floating immersed tube is directly twisted and moved out of a barge, the invention has the advantages that the mounting barge is twisted and moved out of the barge, a mooring winch system does not need to be arranged on the tube top of the non-self-floating immersed tube, tube top outfitting pieces are few, and outfitting operation procedures are few; and compared with a traditional mode that secondary outfitting is conducted after the tube joints of the self-floating immersed tube are unloaded, secondary outfitting operation is conducted on the semi-submersible barge before unloading, so the sequence of the secondary outfitting operation procedures is changed, and in this way, the non-self-floating immersed tube does not need to be moored again after being unloaded, and operation procedures are simplified.

Description

technical field [0001] The invention relates to the technical field of immersed tube tunnels, in particular to a non-self-floating immersed tube unloading method. Background technique [0002] Conventional immersed tubes are self-floating and sinking tubes, which are usually prefabricated in dry docks. After the prefabrication is completed, the dry docks are filled with water, and the immersed tubes can float naturally. It can be towed to the swirling waters for outfitting and sinking operations, and it can also be quickly transported to the swirling waters by semi-submersible dry barge, and the immersed tube can be directly winched and moved out of the barge, and then temporarily moored in the swirling waters for secondary outfitting operations; among them, The secondary outfitting of self-floating and sinking tubes requires the cooperation of crane ship + engineering barge. The secondary outfitting operations include the installation of measurement towers, calibration of f...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a non-self-buoyant sinking tube for the problem that the existing technology cannot directly twist and move the non-self-buoyant sinking tube on the semi-submerged barge Dispute method

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