Ultra-short distance dredging construction method for cutter suction dredger dock apron

Abstract

The invention relates to an ultra-short distance dredging construction method for a cutter suction dredger dock apron. The ultra-short distance dredging construction method comprises the following steps: step 1, moving in and distributing a cutter suction dredger; after the cutter suction dredger moves in, dropping a steel pile onto a parallel steel pile reset line of the dock apron, and dropping a left lateral moving anchor and a right lateral moving anchor in a back anchoring form; step 2, carrying out cutter suction dredge excavation construction; taking the dock apron as a starting point during construction, dropping a reamer to a designed depth, carrying out fixed-point suction on the dock apron, and enabling the cutter suction dredge to reversely excavate rightwards; when the reamer rightwards swings to an excavation boundary line, lifting a bridge to enable the reamer to leave a mud surface and rightwards swing to a center line of the steel pile idly, wherein a certain included angle is formed between the center line of the steel pile and the dock apron; and advancing a trolley; and step 3, after the cutter suction dredger advances certain distance along the center line of the steel pile, limiting dredging width and lateral moving cable margin, pushing a stem by utilizing an anchor boat for enabling the steel pile to be on the steel pile reset line, and starting construction on next oblique area. The construction method can solve the universal technical problems such as a low production rate, high safety risks and poor quality of such construction.

Description

technical field [0001] The invention belongs to the technical field of dredging construction, in particular to a super-short-distance dredging construction method at the front of a cutter suction ship wharf. Background technique [0002] Due to the frequent berthing of ships at the wharf, the large disturbance of the water body, and the influence of the tidal current, the berthing area at the front of the wharf has obvious underwater sedimentation, which limits the tonnage of the berthing ships. Therefore, regular dredging construction is required in this area. This type of construction is greatly affected by the wharf structure and wind and waves, so how to ensure the safety of the wharf structure under the premise of ensuring quality and progress has become the top priority. [0003] At present, the ultra-short-distance dredging construction at the front of the wharf mainly uses mud pump assembly equipment or inland river dredgers for construction, which often has adverse ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems existing in the known technology, the present invention provides a super-short-distance dredging construction method at the front of the cutter suction ship wharf. Through this construction method, the common problems of low productivity, high safety risk, and poor quality in this type of construction can be solved. technical problem

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