The invention relates to a pile sinking process of a floating type pile stabilizing platform for an offshore wind power guide pipe frame foundation steel pipe pile, the pile stabilizing platform comprises a platform main body, a central positioning pile for positioning the center position of the platform main body, the center of the platform main body is provided with a central positioning pile sleeve sleeving the central positioning pile, four corners of the platform main body are all provided with auxiliary pile limiting guide holes, the middle positions of four edges of the platform main body are provided with limiting guide dragon mouths used for positioning and guiding the fan foundation steel pipe pile in the pile sinking process, the method comprises the following steps of: firstly,building the floating type pile stabilizing platform; secondly, sinking the fan foundation steel pipe pile; and thirdly, removing the floating type pile stabilizing platform after sinking the pile. According to the invention, one positioning pile and four auxiliary piles are arranged, a control platform is connected and fixed on the sea surface, the deviation and verticality of the sinking pile of the fan foundation steel pipe pile are controlled by arranging the limiting guide dragon mouths, and that the gap between the steel pipe pile and the guide pipe frame meets the design requirement when the guide pipe frame is installed is ensured.

Pile sinking process of floating type pile stabilizing platform for offshore wind power guide pipe frame foundation steel pipe pile

The invention discloses a pile stabilizing platform The pile stabilizing platform comprises a truss structure, multiple sections of sleeves, a sleeve anti-sinking assembly, connecting flanges and ananchor pile; the truss structure, the sleeves and the sleeve anti-sinking assembly form a pile stabilizing platform body; the pile stabilizing platform body is internally provided with four anchor pile channels, and the pile stabilizing platform body sleeves the anchor pile through the anchor pile channels; the pile stabilizing platform body is provided with plugs, and the anchor pile is providedwith insertion holes; the four corners of the truss structure are provided with truss anchor pile channels respectively; the sleeves are of hollow cylindrical structures of which the inner portions are provided with sleeve anchor pile channels; multiple sections of the sleeves are connected through the connecting flanges to form a sleeve whole, the top of the sleeve whole is fixed under the trussstructure, and the bottom of the sleeve whole is provided with the sleeve anti-sinking assembly; the center of the sleeve anti-sinking assembly is provided with an anti-sinking assembly anchor pile channel; the truss structure, the sleeve whole and the anchor pile channels in the sleeve anti-sinking assembly are coaxially arranged The pile stabilizing platform has the advantage that different sections of the sleeves are arranged so that the pile stabilizing platform can adapt to the operation of different water depths

Pile stabilizing platform

The invention discloses a pile stabilizing platform construction process which comprises the following steps: A, transporting a pile stabilizing platform and a supporting and fixing pipe pile to specified positions, and mounting six clamping key supporting pile pipes on the pile stabilizing platform into a platform rack; B, adjusting supporting pipe piles of the pile stabilizing platform; C, preparing a pile stabilizing platform sling, detecting the quality, and mounting in place; D, hanging a hawser cable on the pile stabilizing platform, removing a marine binding tool of the pile stabilizingplatform, lifting a crane hook head, and lifting the pile stabilizing platform away from the deck; E, wholly lifting the pile stabilizing platform to sink into water, and removing the pile stabilizing platform sling. According to the construction process adopted by the invention, the stability of the mounted pile stabilizing platform can be improved, and the bearing capacity is improved.

Pile stabilizing platform construction process

The invention discloses an offshore booster station jacket leveling construction process. Two floating cranes and piling ships are cooperating for construction, wherein one floating crane hangs a jacket all the way to ensure that the jacket is level as close as possible to the design requirements; another piling ship is used to drive all three auxiliary piles to the predetermined position, and then the construction of the first product pile is carried out; one pile is struck to a design height by pulling an auxiliary pile with a product pile, and a guide wheel is added between the top of the jacket frame and the foundation pile to ensure the verticality of the pile. After all four piles have been finished, the two floating cranes are used to adjust the jacket to the final state to meet thedesign requirements. The construction process of the invention is reasonable, and the pile is struck to the design elevation by means of pulling a piece of auxiliary pile by a product pile, and the construction side is leveled. The invention solves the problem that it is difficult for the conventional process to level the jacket of the booster station at sea.

Offshore booster station jacket leveling construction process

The invention discloses a pile sinking method for a rock-socketed steel pipe pile of offshore wind power. Pile sinking is performed on four anchoring piles, a test pile, two reference piles and two reference pile protection cylinders. The pile sinking method includes the following steps: erecting a positioning frame, berthing a crane ship, hanging horizontally and erecting a pile, inserting the pile, sinking the pile, removing the positioning frame, and driving and arranging the test pile, the reference piles and reference pile sleeves. When the step of erecting the positioning frame is carried out, four auxiliary piles arranged in a square lattice are first sunk into soil by employing a vibration pile hammer, then the positioning frame is suspended on the four auxiliary piles, an initialleveling work is completed before the positioning frame is hooked, after a horizontal point position is found, a counter pull hook is disposed on the auxiliary piles and is connected with the positioning frame, and connecting pieces between the positioning frame and the auxiliary piles are welded under a hoisting condition, so that the positioning frame and the auxiliary piles are quickly fixed into one body. The pile sinking method of the invention enables a deviation of a plane position of a pile top after pile sinking of the steel pipe pile to be controlled within 50 mm, and enables the verticality to be controlled within one over two hundred.

Pile sinking method for rock-socketed steel pipe pile of offshore wind power

The invention discloses a pile sinking construction method of an offshore wind power pile group foundation and a special guide frame. Steel pipe piles driven through the construction method are convenient in construction and accurate in position, verticality, elevation and height difference, and can guarantee the structure stress uniformity and scientificity. A sinking prevention plate is welded at the bottom of the guide frame; the guide frame is placed on a seabed through the sinking prevention plate; if the seabed is slightly concave and convex, as the area of the anti-sinking plate is large, the whole can be kept smooth; but the sinking prevention plate increases the weight of the guide frame, and the sinking prevention plate is frequently sunk into sludge of the seabed, so that the lifting difficulty is greatly improved; the guide frame adopts detachable upper and lower layers of structures; after pile driving, bolts for connecting the upper guide frame with the lower guide frame are disassembled, so that users can firstly lift up the upper guide frame, and then, lift out the lower guide frame, the lifting weight can be reduced, and the difficult lifting caused by absorption of the sinking prevention plate by the sludge is prevented; and multiple through holes are formed in the sinking prevention plate to reduce the absorption effect on the sinking prevention plate by the sludge.

Pile sinking construction method of offshore wind power pile group foundation and special guide frame

The utility model discloses a monitoring device that is in milk under water for installation of marine wind power jacket, include and be connected fixed basic piling bar and the leading truck of beingconnected with basic piling bar with the seabed that be equipped with the camera subassembly in the position that leading truck and basic piling bar are connected, the camera subassembly passes through data transmission line connection to observation device on water. The utility model has the advantages of it is efficient, save time, it is swift, ensure grouting quality.

A monitoring device that is in milk under water for installation of marine wind power jacket

The invention discloses an installation construction method for an offshore wind power early-fixed pile jacket. The jacket is safely and accurately installed on four wind power foundation steel piles fixed to a seabed in advance through the seven main steps of construction preparation, jacket hoisting, a jacket position aligning, pile entering of the jacket, measurement calibration, installation completion, record determining through diver photographing, warning of hook withdrawing and site clearing. The technical difficult problem of underwater installation of the early-fixed pile jacket can be effectively solved, and the extremely large promoting effect is achieved for promotion of wind power plant development of national southeastern sea areas and deep sea areas.

Installation construction method for offshore wind power early-fixed pile jacket

The utility model discloses a special leading truck of marine wind power clump of piles basis pile -sinking construction, reach leading truck down including last leading truck, go up pipe on the piling bar that the leading truck includes that four two bisymmetries arrange, and be equipped with pipe on the grouser on per two piling bars between the pipe, be connected through upper steel beam between the pipe on pipe and the grouser on the piling bar, the leading truck includes the piling bar downcomer that four two bisymmetries were arranged down, and is equipped with the grouser downcomer between per two piling bar downcomers, the piling bar downcomer is connected through lower steel beam with the grouser downcomer within a definite time, the grouser top is equipped with the linkage that can promote the leading truck, go up the leading truck and be a whole through bolted connection before the leading truck down, the end can be sat to the leading truck becomes interim fixed platform, and also can hang becomes interim floating platform on the grouser. The utility model provides an it is fast that special leading truck has the location, characteristics such as precision height, simultaneously to ship machine equipment require lowerly, reduced construction cost.

Special leading truck of marine wind power clump of piles basis pile -sinking construction

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Pile sinking construction method of offshore wind power pile group foundation and special guide frame

A monitoring device that is in milk under water for installation of marine wind power jacket

Installation construction method for offshore wind power early-fixed pile jacket

Special leading truck of marine wind power clump of piles basis pile -sinking construction