CN115893042A - A method for sliding wind power pipe piles onto a ship - Google Patents

Abstract

The invention discloses a method for sliding and boarding a wind power pipe pile, which comprises the following steps: laying out the sliding tooling at the front of the wharf, laying out the sliding tooling on the transport ship, placing the pipe pile to be transferred on the roller frame, and calculating the pipe pile The center position of the pile, confirm the pile length and pile weight, and transport it to the dock by two front and rear axis module vehicles; separate the single pile from the front axis module vehicle, drive the rear axis module vehicle from the side, lift and slide The device is lowered, and the lifting and sliding device is driven to lift and move to the designated position in the direction of the cab, the transport ship is unmoored (anchored), and finally the single pile is tied and fixed at sea as required. The present invention can be applied to tooling at low tide level, without being limited by the wharf and water depth of the wharf, and can be used to smoothly slide wind power pipe piles onto the ship at low tide level, and all kinds of tooling used can be reused. And the use conditions are not affected by the tide and the freeboard height of the ship, which greatly reduces the cost of boarding the ship and shortens the boarding time of wind power pipe piles.

Description

A method for sliding wind power pipe piles onto a ship

technical field

The invention belongs to the technical field of wind power pipe piles, and in particular relates to a method for sliding wind power pipe piles onto a ship by using sliding tooling.

Background technique

The traditional method of loading wind power pipe piles on board is mainly hoisting onto the ship or using a module vehicle to roll on the ship; hoisting onto the ship (as shown in Figure 1), it is necessary to use a crane with a large lifting weight and a sling to move the pipe piles to the ship. The main disadvantage of this method is that the weight of the pile will be limited by the crane, and the weight of the pipe pile will normally reach more than 1,000 tons. It will be difficult to choose a heavy crane. Cranes that can reach the required lifting weight are often more expensive to purchase or more expensive to rent. The scope of use is also limited by the water depth of the dock and dock.

Roll-on-roll-on boarding is low cost and easy to use, but it is also affected by the tide and the freeboard height of the ship. It can only be used at high tide levels, and the method of rolling-on-roll-on boarding is often not available at low tide levels (as shown in Figure 2 shown).

Contents of the invention

The purpose of the present invention is to provide a method for sliding wind power pipe piles onto a ship, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solution: a method for sliding wind power pipe piles onto a ship, comprising the following steps:

a): Arrange sliding tooling at the front of the wharf:

Before the tide rises, the 4# lifting and sliding tooling is arranged in advance at the front of the wharf as an emergency backup, and the 1# shore sliding track and the 2# shore sliding track are laid horizontally at the working site on the wharf surface. The vehicle needs to drive out from the side, and the 1# shore sliding track is temporarily not laid. After the track is laid, the 3# lifting and sliding device and the 4# lifting and sliding device are placed on the wharf;

b): The transport ship lays out the sliding tooling:

Before the tide rises, put the transport ship (front driving ship) against the front of the wharf (facing the wharf), lay the two on-board sliding tracks on the deck of the ship through a crane, and place the 1# lifting sliding device and the 2# lifting sliding The shifting device is placed at the stern of the ship;

c): Put the pipe pile to be transferred on the roller frame, calculate the center position of the pipe pile, confirm the pile length and pile weight, and transport it to the wharf through two front and rear axis module vehicles;

d): Align the two slip tracks on the ship with the 1# shore slip track and the 2# shore slip track at the front of the wharf on the same axis;

e): The 1# lifting and sliding device is slowly lifted, and the weight of the single pile falls on the stern, so the barge will sink, and the support of the 1# lifting and sliding device stops lifting. The rise of the tide raises the barge, and the 1# lifting and sliding device continues to lift, and the above process is repeated until the single pile is separated from the front axis module vehicle, and then the front axis module vehicle drives out from the side. At this time, the weight of the single pile is determined by The 1# lifting and sliding device and the thick axis module car are jointly supported;

f): Insert the 3# lifting and sliding device from the bottom of the pile, then lift the 3# lifting and sliding device, and drive the rear axis module vehicle out from the side. At this time, the weight of the single pile is determined by the 1# lifting and sliding device and the 3# The lifting and sliding devices are jointly supported, and the ballast water is adjusted in time to adjust the state of the ship during the process;

g): Lay the 1# shore sliding track to the predetermined position to ensure that the axes are aligned, and the 1# lifting and sliding device drives the 3# lifting and sliding device to the direction of the cab under the action of its own push During this process, the weight of the single pile is jointly borne by the 1# lifting and sliding device and the 3# lifting and sliding device. During this process, the ballast water is adjusted in time to adjust the state of the ship;

h): The 2# lifting and sliding device is lifted, the 3# lifting and sliding device is lowered, and the 1# lifting and sliding device 1 is pushed by itself to drive the 2# lifting and sliding device to lift the common driving In this process, the weight of the single pile is jointly borne by the 1# lifting and sliding device and the 2# lifting and sliding device. During this process, the ballast water is adjusted in time to adjust the state of the ship;

i) The transport ship is unmoored (anchored), facing the 2# approach bridge and leaning against the front of the wharf, using a crane to adjust the transport support on the ship, so that the transport support is evenly distributed under the pile body, and the 1# lifting and sliding device , 2# lifting and sliding device pressure relief, so that the single pile falls on a plurality of transport bearings, then the 1# lifting and sliding device, 2# lifting and sliding device and the sliding track are hoisted to the dock surface in turn; finally Sea tie and fix the single pile as required.

Preferably, at least 6 transport supports in the step i) are arranged.

Preferably, the distance between the centers of the 1# shore slip track and the 2# shore slip track is 10m-12m.

Preferably, the distance between the 2# lifting and sliding device and the stern of the ship in the step b) is 3m-5m.

Preferably, the 1# lifting and sliding device, the 2# lifting and sliding device, the 3# lifting and sliding device and the 4# lifting and sliding device all include a double door frame structure, a load beam, a pushing device and a pushing and limiting device , a load-bearing beam is set between the double door frame structures, and the top beam of the double door frame structure is synchronously lifted and lowered by the lifting cylinder, the lifting top and the steel strand, and the pushing device and the pushing limit The device is arranged at the lower end of the base beam of the double door frame structure.

Preferably, an inclination sensor is installed on the base beam.

Preferably, a windproof iron wedge device, an anchor cable device, a weight indicating device and a height indicating device are also provided on the double door frame structure.

Preferably, two rest point supports are arranged symmetrically on the support beam, and an adjustment seat is provided on each of the rest point supports.

Preferably, a traversing device is installed at the bottom of the 3# lifting and sliding device and the 4# lifting and sliding device to realize the traversing function

Technical effect and advantage of the present invention:

1. The present invention can be applied to tooling at low tide levels, and is not limited by the wharf and water depth of the wharf, and can be used to smoothly slide wind power pipe piles onto the ship at low tide levels.

2. All kinds of tooling used in this boarding method can be reused, and the use conditions are not affected by the tide and the freeboard height of the ship, which greatly reduces the cost of boarding and shortens the boarding time of wind power pipe piles .

Description of drawings

Figure 1 is a schematic diagram of the current hoisting method;

Figure 2 is a schematic diagram of the current ro-ro;

Fig. 3 is a schematic diagram of skid boarding of the present invention;

Figure 4.1-4.2 is a schematic structural diagram of the lifting and sliding device;

Fig. 5 is a schematic diagram of push and slide;

Fig. 6 is a schematic diagram for calculating the cylinder stroke of the lifting and sliding device;

Fig. 7 is a schematic diagram of a transport ship top docking;

Figure 8 is a schematic diagram of preparation for skid loading;

Figure 9 is a schematic diagram of the 36-axis module vehicle approaching the front of the wharf;

Figure 10 is a schematic diagram of the withdrawal of the 36-axis module vehicle;

Figure 11 is a schematic diagram of the 28-axis module vehicle approaching the front of the wharf;

Figure 12 is a schematic diagram of a 3# lifting and sliding device installed at the bottom of the pile;

Figure 13 is a schematic diagram of the withdrawal of the 28-axis module vehicle;

Fig. 14 is the schematic diagram of laying remaining 1# slip track;

Figure 15 is a schematic diagram of the 3# lifting and sliding device approaching the front of the wharf.

In the picture: 1-1# lifting and sliding device, 2-2# lifting and sliding device, 3-3# lifting and sliding device, 4-4# lifting and sliding device, 11-1# shore sliding track, 12- 2# shore sliding track, 6-ship sliding track, 101-double door frame structure, 102-loading beam, 103-jacking device, 104-jacking limit device, 105-lifting cylinder, 106-lifting top, 107 - steel strand, 108 - inclination sensor, 109 - shelving point support.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Taking the carrying capacity of 1800t as an example, Figure 3-Figure 15 shows a specific implementation of a method for sliding wind power pipe piles onto a ship according to the present invention:

Arrange sliding tooling at the front of the wharf:

Before the high tide, the 4# lifting and sliding device is arranged in advance at the front of the wharf as an emergency backup, and the 1# and 2# shore sliding tracks are laid horizontally at the working site on the wharf. Considering that during the sliding loading process, the module vehicle needs to drive from the side The length of the 1# shore sliding track will not be laid temporarily; the distance between the centers of the 2 sliding tracks is 11m (each track is located on the beam). After the track is laid, the 3# lifting and sliding device is placed on the rear edge superior;

Transport ship layout slip tooling:

Before the tide rises, the transport ship (front driving ship) is docked at the front of the wharf (facing the wharf), and the 350t crane lays 2 sliding tracks on the ship deck as required, and places the 1# and 2# lifting and sliding devices on the At the stern of the ship, the distance between the 2# lifting and sliding device and the stern is controlled at about 4m;

skid loading

(1) After the installation of the sliding tooling (sliding track, lifting and sliding device) on the transport ship is completed, untie the mooring, lean against the front of the wharf facing the 2# approach bridge (as shown in Figure 7), put the cable on the stern, and Tie the figure-of-eight cable upside down so that the sliding track on the ship is on the same axis as the sliding track on the wharf. If it is during a flood season, two figure-of-eight anchors need to be thrown at the bow, and the 1#, 2#, and 3# lifting slides should be connected. The power cord of the mobile device to ensure that the no-load test machine is normal;

(2) Before skidding and loading, check the skidding tooling again, wait for the appropriate tide, and drive the module car slowly to the sea side until the 36-axis module car stops driving about 4m away from the front of the wharf. At this time, the weight of the single pile is divided by 2 modules The car bears jointly (as shown in Fig. 8-Fig. 9);

(3) The 1# lifting and sliding device is slowly lifted, and part of the weight of the single pile will fall on the stern, so the barge will sink, and the 1# lifting and sliding device will stop lifting, waiting for the ballast water to be adjusted and the tide to rise. The barge is raised, the 1# lifting and sliding device continues to lift, and the above process is repeated until the single pile is separated from the 36-axis module vehicle, and then the 36-axis module vehicle drives out from the side. At this time, the weight of the single pile is controlled by the 1# lifting and sliding device. Together with the 28-axis module vehicle (as shown in Figure 10);

(4) The 28-axis module vehicle drives the 1# lifting and sliding device to continue to move towards the cab until the 28-axis module vehicle stops driving 4m away from the front of the wharf. During this process, the weight of the single pile is determined by the 1# lifting and sliding device and the 28-axis module The vehicle bears it together, and the ballast water is adjusted in time to adjust the state of the ship during the process (as shown in Figure 11);

(5) The 3# lifting and sliding device is lifted by a 350t crane, inserted from the bottom of the pile, and placed at a distance of about 8m from the bottom of the pile. At this time, the weight of the single pile is still jointly borne by the 1# lifting and sliding device and the 28-axis module vehicle ( as shown in Figure 12);

(6) Step 6: The 3# lifting and sliding device is lifted, and the 28-axis module vehicle drives out from the side. At this time, the weight of the single pile is jointly borne by the 1# lifting and sliding device and the 3# lifting and sliding device. Carrying water to adjust the state of the ship (as shown in Figure 13);

(7) Lay the remaining 1# shore sliding track to the predetermined position to ensure that the axes are aligned. Under the action of its own push, the 1# bracket drives the 3# lifting and sliding device to lift and move towards the cab until 3# lifts The lifting center of the sliding device stops moving at a distance of 4m from the front of the wharf (at this time, the lifting of the 3# lifting sliding device just sits on the sea side track beam). During this process, the weight of the single pile is lifted by the 1# lifting sliding device and the 3# lifting The sliding device is lifted and bears jointly, and the ballast water is adjusted in time during the process to adjust the state of the ship (as shown in Figure 14);

(8) The 2# lifting and sliding device is lifted, the 3# lifting and sliding device is lowered, and the 1# lifting and sliding device, under the action of its own push, drives the 2# lifting and sliding device to move towards the cab until it reaches the designated position , during this process, the weight of the single pile is jointly borne by the 1# lifting and sliding device and the 2# lifting and sliding device, and the ballast water is adjusted in time during the process to adjust the state of the ship (as shown in Figure 15);

(9) The transport ship is unmoored (anchored), facing the 2# approach bridge and leaning against the front of the wharf, using a 350t crane to adjust the original transport support on the ship, so that the transport support is evenly distributed under the pile body, and the 1# lifting slide The lifting device and 2# lifting and sliding device are depressurized, so that the single pile falls on the 6 transport supports, and then the 1# lifting and sliding device, 2# lifting and sliding device and the sliding track are hoisted to the dock surface in sequence, and finally Sea-tied and fixed single piles are required, and a total of at least 6 transport supports are arranged.

Calculation of the stroke of the lifting skid:

In order to ensure that the skid loading conditions are available every day of the year, and the effective working time of the daily loading is 4 hours, it is necessary to fully consider the stroke of the oil cylinder when designing the lifting skid device.

Based on the analysis of the tide tables of Qinglong Port in "China Coastal Tide Tables (Shanghai Port, Hangzhou Bay)/2020", based on the high tide level water surface at 16:50 on April 26, 2019, the tide level is all The smallest tide level among the daytime high tide levels, the elevation is +2.26m (Wusong elevation);

The skid loading operation is planned to be carried out from 15:00 to 19:00 on the same day, the water surface elevation at 15:00 is +1.89m, and the water surface elevation at 19:00 is +1.92m (Wusong elevation). Since the high tide level of this wharf is about 0.6m higher than the high tide level of Wusong Port, (+1.89) m+0.6m=+2.49m is used as the initial operating tide level in the calculation;

Considering that the height of the module car is 1.5m, the bottom height of the U-shaped bracket on the module car is 0.4m, and the base height of the lifting and sliding device is 1.68m (including the height of the track on the ship) (as shown in Figure 6);

Therefore, the hydraulic cylinder stroke of the lifting and sliding device L=(+6.7m)+1.5m+0.4m- (2.49+2+1.68)=2.43m;

Considering a certain safety margin, the stroke of the lifting and sliding device is set at 3m.

The applicant further stated that the present invention illustrates the implementation method and device structure of the present invention through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned methods and structures to be implemented. Those skilled in the art should understand that any improvement to the present invention, the equivalent replacement of the selected implementation method of the present invention, the addition of steps, the selection of specific methods, etc., all fall within the scope of protection and disclosure of the present invention.

The present invention is not limited to the above-mentioned embodiments, and all methods that use structures and methods similar to the present invention to achieve the purpose of the present invention are within the protection scope of the present invention.

Claims (9)

1. A method for sliding a wind power pipe pile onto a ship is characterized by comprising the following steps:

a) The method comprises the following steps Laying a sliding tool at the front edge of the wharf:

before the flood tide, a fourth lifting and sliding tool (4) is arranged at the front edge of the wharf in advance to serve as an emergency standby, a 1# onshore sliding track (11) and a 2# onshore sliding track (12) are transversely laid at a wharf face operation place, the 1# onshore sliding track (11) cannot be laid for a long time, and after the tracks are laid, a 3# lifting and sliding device (3) and a 4# lifting and sliding device (4) are placed on the wharf;

b) The method comprises the following steps Laying a sliding tool for a transport ship:

paving two shipboard sliding tracks (6) on a ship deck by a crane along the front edge of a wharf, and placing a 1# lifting sliding device (1) and a 2# lifting sliding device (2) at the stern of the ship;

c) The method comprises the following steps Placing the tubular pile to be transferred on a roller frame, calculating the central position of the tubular pile, confirming the pile length and the pile weight of the tubular pile, and transporting the tubular pile to a wharf through a front axis module vehicle and a rear axis module vehicle;

d) The method comprises the following steps Aligning two shipboard sliding tracks (6) with a No. 1 shore sliding track (11) and a No. 2 shore sliding track (12) at the front edge of a wharf on the same axis;

e) The method comprises the following steps Slowly lifting the 1# lifting and sliding device (1), wherein the weight of the single pile is partially dropped at the stern of the ship, so that the barge can sink, the bracket of the 1# lifting and sliding device (1) stops lifting, the barge is lifted by adjusting ballast water and rising tide, the 1# lifting and sliding device (1) is continuously lifted, the process is continuously repeated until the single pile is separated from the front axis module vehicle, then the front axis module vehicle is driven out from the side, and the weight of the single pile is jointly borne by the 1# lifting and sliding device (1) and the thick axis module vehicle;

f) The method comprises the following steps Sleeving the 3# lifting sliding device (3) from the pile bottom, then lifting the 3# lifting sliding device (3), driving the rear axis module vehicle out from the side surface, simultaneously bearing the weight of a single pile by the 1# lifting sliding device (1) and the 3# lifting sliding device (3), and adjusting ballast water in time in the process to adjust the state of the ship;

g) The method comprises the following steps Completely paving the No. 1 onshore sliding track (11) to a preset position to ensure that axes are aligned, wherein the No. 1 lifting sliding device (1) drives the No. 3 lifting sliding device (3) to move towards a cab together under the self-pushing action, the weight of a single pile is borne by the No. 1 lifting sliding device (1) and the No. 3 lifting sliding device (3) together in the process, and ballast water is adjusted in time to adjust the state of the ship in the process;

h) The method comprises the following steps The 2# lifting sliding device (2) is lifted, the 3# lifting sliding device (3) is lowered, the 1# lifting sliding device (1) drives the 2# lifting sliding device (2) to lift and move towards the cab together under the self-pushing action until reaching a specified position, in the process, the weight of a single pile is borne by the 1# lifting sliding device (1) and the 2# lifting sliding device (2) together, and in the process, ballast water is adjusted in time to adjust the state of the ship;

i) Untwisting the transport ship, adjusting the transport supports on the ship just against the 2# approach bridge to lean against the front edge of the wharf by using a crane, enabling the transport supports to be uniformly distributed below the pile body, relieving pressure of the 1# lifting sliding device (1) and the 2# lifting sliding device (2), enabling the single pile to fall on the plurality of transport supports, and then sequentially hoisting the 1# lifting sliding device (1), the 2# lifting sliding device (2) and the sliding track (6) to the wharf surface; and finally, fixing the single piles by sea tying according to requirements.

2. The method for sliding the wind power pipe pile on the ship according to claim 1, which is characterized in that: at least 6 transport supports are arranged in step i).

3. The method for sliding the wind power pipe pile on the ship according to claim 1, which is characterized in that: the center distance between the 1# on-shore sliding track (11) and the 2# on-shore sliding track (12) is 10-12 m.

4. The method for sliding the wind power pipe pile on the ship according to claim 1, which is characterized in that: and in the step b), the distance between the No. 2 lifting sliding device (2) and the stern is 3-5 m.

5. The method for sliding the wind power pipe pile on the ship according to claim 1, which is characterized in that: 1# promotes slider (1), 2# promotes slider (2), 3# promotes slider (3) and 4# promotes slider (4) and all includes two door frame structure (101), carrier bar (102), thrustor (103) and top pushing stop device (104) the cover is equipped with carrier bar (102) between two door frame structure (101), promote simultaneously through promoting jar (105), promotion top (106) and steel strand wires (107) on the top crossbeam of two door frame structure (101) and transfer carrier bar (102), base roof beam lower extreme at two door frame structure (101) is established in thrustor (103) and top pushing stop device (104).

6. The method for sliding the wind power pipe pile on the ship according to claim 5, wherein the method comprises the following steps: and the base beam is provided with an inclination angle sensor (108).

7. The method for sliding the wind power pipe pile on the ship according to claim 5, wherein the method comprises the following steps: and a wind-proof iron wedge device, an anchor cable device, a weight indicating device and a height indicating device are further arranged on the double-door-frame structure (101).

8. The method for sliding the wind power pipe pile onto the ship according to claim 5, wherein the method comprises the following steps: two resting point supports (109) are symmetrically arranged on the support beam (102), and an adjusting seat is arranged on each resting point support (109).

9. The method for sliding the wind power pipe pile on the ship according to claim 5, wherein the method comprises the following steps: and a traversing device is arranged at the bottom of the 3# lifting sliding device (3) and the 4# lifting sliding device (4).

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