Deviation rectification construction technology of offset piling with offshore diesel hammer
A construction technology, diesel hammer technology, applied in the direction of sheet pile wall, foundation structure engineering, construction, etc., can solve the problems of increasing project cost, difficulty in ensuring high precision, increasing construction difficulty and workload, etc., so as to reduce project cost, The Effect of Simplifying Complexity
Active Publication Date: 2018-12-11
CCCC FIRST HARBOR ENG
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Problems solved by technology
It is mainly reflected in two aspects: 1. If it is simply hoisted, it is difficult to guarantee the high-precision requirements; 2. If the positioning frame is used, it will greatly increase the difficulty and workload of construction operations, and greatly increase the project cost, and often Need a variety of work boats to complete
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specific Embodiment approach
[0018] Such as Figures 1 to 2 as shown,
[0019] The diesel hammer offset piling rectification construction technology includes the following steps:
[0020] 1. The ship is in place
[0021] (1) The piling ship and piling ship arrive at the scheduled construction site;
[0022] (2) Adjust the position of the ship to anchor, so as to facilitate the operation of picking up piles and hammers.
[0023] 2. Construction preparation
[0024] (1) Open the hydraulic pile holders on the upper and lower layers of the pile holder Figure 1 In 4, adjust each hydraulic device according to the pile diameter to ensure that there is enough space to place steel pipe piles
[0025] (2) An inclination measuring instrument is installed on the top of the pile body;
[0026] 3. Hanging pile
[0027] (1) With the aid of the piling trolley, the piling ship lifts the steel pipe pile at a single point
[0028] (2) Lift the pile into the pile holder and close the hydraulic pile holder
[0029] (...
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The invention discloses a diesel hammer deviation piling rectification construction process and equipment. The process comprises the steps of: (1) arrangement of a ship in place; (2) construction preparation; (3) pile lifting; (4) hammer lifting; and (5) construction. When an inclined angle of a pile body is increased or has an increasing tendency, a hammer is stopped, a rectification hydraulic cylinder adjusts an acting point position of a diesel hammer in a deviation opposite direction, and the offset driving condition of the diesel hammer is artificially generated; and when the perpendicularity recovers to totally satisfy the designed requirements, the hammer is stopped, the rectification hydraulic cylinder is adjusted again, so that the acting point of the diesel hammer is overlapped with the pile center position. The process has no need to arrange a positioning frame beforehand, only needs to apply traditional piling equipment to realize rectification through controlling the acting point position of the diesel hammer, largely simplifies the construction complexity degree, and reduces the engineering cost.
Description
technical field [0001] The invention relates to a method and equipment for verticality control and deviation correction of steel pipe piles when diesel hammers are used to construct offshore steel pipe piles. Background technique [0002] With the development of offshore pile foundations in the direction of large pipe diameter and high precision, the existing construction methods of steel pipe piles have major problems in ensuring verticality. It is mainly reflected in two aspects: 1. If it is simply hoisted, it is difficult to guarantee the high-precision requirements; 2. If the positioning frame is used, it will greatly increase the difficulty and workload of construction operations, and greatly increase the project cost, and often Need a variety of work boats to cooperate to complete. Contents of the invention [0003] Aiming at the deficiencies in the above-mentioned prior art, the present invention proposes a construction technique and equipment for controlling the v...
Claims
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IPC IPC(8): E02D13/04
CPCE02D13/04
Inventor 刘德进曲俐俐徐善忠苏长玺王翔鞠鹏
Owner CCCC FIRST HARBOR ENG