Pile driving barge and posture adjustment, positioning control and pile driving methods thereof

Abstract

A pile driving barge comprises a barge body, buoyancy adjusting devices are arranged at four corners of the barge body respectively, an upper scanner and a lower scanner for scanning vertical piles are arranged on the barge body, and GPS signal receivers are arranged at two different positions of the barge body; anchor machines for anchoring at least four different positions are arranged on the barge body; a pile frame is rotationally arranged on the barge body; the barge body is provided with an automatic pile frame lying device; a piling guide rail is arranged on the pile frame; a pile hammer is movably arranged on the pile driving guide rail; a first brake device for limiting the position of the pile hammer on the pile driving guide rail is arranged on the pile hammer, a transition roller is arranged on the upper portion of the pile frame, the upper portion of the pile hammer is connected with a winch arranged on the barge body through a steel wire rope, and a second brake device for braking by braking a winch roller to control the steel wire rope to pull the pile hammer is arranged on the barge body; and a pile cap is arranged on the pile hammer, a pile gripper for gripping thevertical pile is arranged on the lower portion of the pile frame. The invention further discloses a posture adjusting method, a positioning control method and a pile driving method of the pile driving barge.

Description

technical field [0001] The present invention relates to a piling ship and its control method, in particular to a piling ship and its posture adjustment method, positioning control method and piling method. Background technique [0002] The piling barge is a kind of offshore piling equipment. The piling barge is used to install the piles in the subsea soil layer. After the pilings are installed, wind power generation and other operating platforms can be installed on the pilings. With the demand for expanding opening up and in-depth development of coastal areas and the promotion of the country's strategic layout of the economic circle around the sea, water engineering projects in coastal areas are increasing. Ships are gradually developing in the direction of large-scale and automation. At the same time, the requirements for the accuracy and efficiency of piling ships in offshore pile foundation projects are constantly increasing. However, the construction of pile foundation ...

AI Technical Summary

Problems solved by technology

[0004] However, at present, a large amount of work in the piling operation process is completed manually. Under the influence of wind, waves and currents, the piling ship cannot guarantee the stability of the hull during the piling process, and cannot meet the high-precision requirements of the position and inclination angle of the piling.

None of the existing methods for improving the stability of piling ships can solve the problem well. For example, in the patent ZL201410557626.2, the method and system for automatic balancing of large cargo ships with ballast function will be located in the lower balance cabin The water inside is pumped into the balance cabin at a higher place to maintain the balance of the hull, but the compensation lag of this method is particularly large; and a anti-wave piling ship as described in the patent ZL201420532754.7, although the longitudinal stability of the piling ship is improved, However, there is no control over the heave motion of the main deck; another example is a anti-wave piling ship described in patent ZL201420532727.

Therefore, in the current piling process, there are often different degrees of inclined pile problems, which are difficult to solve well.

[0005] In addition, during the pile group operation, the piling ship needs to move back and forth between the piling area and the pile hanging area. Controlling the movement of the hull by dragging or other methods cannot make the pile frame on the hull move accurately to the piling position, which cannot meet the needs of the hull. Bit accuracy requirements greatly affect the accuracy of piling

[0006] In view of the above two reasons, some areas that require precise piling to build offshore platforms often have to give up development

[0007] In addition, the existing piling ships still have the following problems: when the piling ship encounters sudden sea conditions, it needs to quickly take off and land the pile frame, and quickly drive away from the operation site to reduce equipment and personnel damage caused by sudden sea conditions. Lifting and landing mainly uses hydraulic pressure as the main power and the pulley block as the auxiliary power to realize the lifting and landing operation of the pile frame. This method is cumbersome to operate, and the process still requires manual assistance, which is inefficient and has safety problems

Cutting the pile lugs is done manually. Workers ride on a platform that can be raised and lowered along the pile frame to the height near the lugs, and use a cutting device to cut off the lugs, which is inefficient and has safety problems

In the piling operation, the occurrence of a slipping pile accident will cause huge losses, and there are safety problems. When the pile slipping occurs, the pile cap and the hydraulic pile hammer will drop rapidly and uncontrollably. Cap and hydraulic pile hammer crash into sea causing massive damage

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