Bottom-supported floating pile-driving platform

Abstract

The invention discloses a bottom-supported floating pile-driving platform, which includes a caisson, a support device, an operating platform, a pile gripper and a crane. Inside the caisson are arranged a ballast tank and a water feeding / discharging system for controlling water feeding / discharging of the ballast tank; the support device is installed on the caisson, and supports the operating platform; the pile gripper is installed on the operating platform and used for positioning a pile body; the crane is used for hoisting the pile body and a pile hammer; the ballast water amount of the ballast tank in a sailing state is smaller than the ballast water amount of the ballast tank in a pile driving state; and the caisson floats on water in the sailing state, but comes into contact with the underwater ground in the pile driving state. With the caisson, the inventive bottom-supported floating pile-driving platform can adapt to pile foundation construction in shallow water areas such as intertidal zone and shallow sea area. As the caisson is always stably supported on the underwater ground in the process of pile driving, the pile foundation construction safety is not affected even in case of tide ebbing and stranding.

Description

technical field [0001] The invention relates to the field of piling equipment, in particular to a bottom-sitting type piling platform on water. Background technique [0002] Projects such as ports, bridges, offshore oil and gas exploration, and offshore wind power development usually require pile foundations to be laid in intertidal zones or shallow sea areas. The intertidal zone and shallow sea area have the characteristics of fast water flow, soft soil, large water level changes, and high requirements on the draft of ships, so it is extremely difficult to carry out pile foundation construction. In the prior art, pilings are generally built in the intertidal zone and shallow waters by building temporary trestles or reclamation roads. However, these methods have the disadvantages of long construction period, huge investment, and damage to the marine ecological environment to a certain extent. However, it is difficult for conventional piling ships to enter the intertidal zon...

AI Technical Summary

Problems solved by technology

The intertidal zone and shallow sea area have the characteristics of fast water flow, soft soil, large water level changes, and high requirements on the draft of ships, so it is extremely difficult to carry out pile foundation construction operations

In the prior art, piles are generally built in the intertidal zone and shallow waters by building temporary trestle bridges or reclamation roads, but these methods have the disadvantages of long construction period, huge investment, and damage to the marine ecological environment to a certain extent.

However, it is difficult for conventional piling ships to enter the intertidal zone for piling operations due to draft problems, because they can enter the intertidal zone during high tide, but will be stranded during low tide, and construction safety cannot be guaranteed

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