Method for building dock by lifting precast panels with simple portal crane

Abstract

The invention discloses a method for building a dock by lifting precast panels with a simple portal crane, comprising the following steps of: 1) paving a dock platform transverse first end edge plate and installing a track; 2) installing and debugging the simple portal crane on a precast longitudinal beam; 3) lifting the track by the simple portal crane, and paving the track in an extending way; 4) lifting the precast panels by a mini type floating crane, and paving a row of the precast panels by the lifting and positioning of the simple portal crane; 5) repeating the steps 2)-4) to pave the precast panels in the middle of the dock row by row; and 6) paving a dock platform transverse second end edge plate, so that the lifting and the paving of all the precast panels of the dock platform can be completed, and a concrete surface layer and various accessory structures of the dock platform can be precast. According to the method, the installing difficulty of the extra large-width dock precast panels of which widths are more than 60m can be overcome, the installing and construction cost can be greatly reduced, the installing progress can be shortened, the installing quality can be improved, and the construction efficiency and the construction security can be improved.

Description

technical field [0001] The invention relates to a construction method of a high-piled beam-slab wharf, in particular to a construction method for building a large wharf with a width of more than 60 meters by mainly using a crane installed on the wharf under construction to hoist prefabricated panels, which belongs to port engineering technology field. Background technique [0002] In order to build a deep-water wharf that can berth large ships on the coast or along the river, a high-piled beam-slab wharf platform is generally built in a deep-water area with a certain distance from the shore, and connected to the land through several approach bridges. When the wharf platform is built, it is necessary to sink multiple engineering piles to the bottom of the river or the seabed first, prefabricate concrete pile caps with a diameter larger than the diameter of the engineering piles on the upper ends of the engineering piles, and prefabricate a grid-shaped grid between the tops ...

AI Technical Summary

Problems solved by technology

In the construction of ultra-wide wharf, large-scale floating cranes with long booms are required for lifting operations, and the construction cost of large-scale floating cranes is expensive

Affected by tidal water level and wind and waves, when the water depth and water area of ​​large-scale floating crane construction cannot be satisfied, it cannot be moved to the designated pile position for lifting construction

In addition, the utilization rate of large floating cranes is not high, the risk of equipment safety is relatively high, and the construction period is long

Images