Cylindrical type leg and its spud shoe installation positioning method

Abstract

The application discloses a cylindrical pile leg and a pile shoe mounting and positioning method thereof, and is characterized by the following steps: segmenting; hoisting the first segmented pile leg under the floating state of the ship at the wharf; placing the pile shoe on the wharf bottom before the ship enters the dock; after the ship enters the dock, the pile shoe directly falls on the position of the placed pile shoe area in the ship; assembling the first segment pile leg and the pile shoe; after the assembly of the pile shoe and the first segment pile leg is completed in the dock, the ship is docked out, the second segment pile leg is hoisted under the floating state of the ship at the wharf, and the second segment pile leg is assembled after being positioned with the first segment pile leg; the third segment pile leg is hoisted under the floating state of the ship at the wharf, and the third segment pile leg is assembled after being positioned with the second segment pile leg. On the basis of ensuring the manufacturing quality of the pile shoe and the pile leg, the pile shoe is placed on the dock bottom first, and then the ship is docked for positioning, which greatly reduces the time for moving, adjusting and positioning the pile shoe in the dock compared with the method that the ship is docked first, and then the pile shoe is hoisted and positioned on the dock bottom.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ship technology and relates to a cylindrical pile leg and a pile shoe installation and positioning method thereof. BACKGROUND

[0002] The certain pile insertion type rescue and salvage engineering ship has four piles and is mainly used for emergency obstacle clearing and rescue and salvage operations in sea areas and offshore shallow water areas. According to the requirements of the modification, the original pile leg and pile shoe of the ship need to be removed and new pile legs and pile shoes are installed. After the modification is completed, the ship can meet the requirements of offshore wind power construction with a water depth of 65 meters or less and has the installation capacity of 12-16 megawatt offshore wind turbines. The ship has high operation efficiency in offshore rescue and salvage and dispatch in unlimited navigation areas.

[0003] In the prior art, the pile shoe is hoisted into the bottom of the dock for positioning after the ship is docked. The time for shifting or adjusting the position of the pile shoe in the dock is relatively long. The newly manufactured cylindrical pile leg has the same diameter as the original pile leg of the ship, but the wall thickness and length are increased. The newly manufactured pile shoe has larger dimensions and increased weight than the original pile shoe. Therefore, it is an urgent problem to be solved to adopt a suitable process for the integral construction. SUMMARY

[0004] In order to achieve the above-mentioned purpose, the application adopts the following technical solutions:

[0005] A cylindrical pile leg and a pile shoe installation and positioning method thereof, and the specific steps are as follows:

[0006] Segmentation: the cylindrical pile leg is segmented into a first segment pile leg, a second segment pile leg and a third segment pile leg,

[0007] Hoisting the first segment pile leg: the first segment pile leg is hoisted under the floating state of the ship at the dock;

[0008] Installing the pile shoe: the pile shoe is placed in position on the dock bottom before the ship is docked; after the ship is docked, the pile shoe directly falls on the position of the placed pile shoe area in the ship;

[0009] Assembling the first segment pile leg and the pile shoe: after the first segment pile leg and the pile shoe are positioned, they are assembled;

[0010] Installing the second segment pile leg: after the pile shoe and the first segment pile leg are assembled in the dock, the ship is undocked, the second segment pile leg is hoisted under the floating state of the ship at the dock, and the second segment pile leg and the first segment pile leg are positioned and assembled after the positioning;

[0011] Installing the third segment pile leg: the third segment pile leg is hoisted under the floating state of the ship at the dock, and the third segment pile leg and the second segment pile leg are positioned and assembled after the positioning;

[0012] The installation of the pile shoe comprises:

[0013] The pile shoe is divided into No. 1, No. 2, No. 3 and No. 4, and the vertical distances B3 and B33 of the center points of the cross-shaped projection of the No. 1 and No. 2 pile shoes to the horizontal plane to the first dock wall, the vertical distances B1 and B2 of the No. 1 and No. 2 pile shoes to the dock gate, the vertical distances A1 and A11 of the No. 3 and No. 4 pile shoes to the second dock wall, and the vertical distances A2 and A22 of the No. 3 and No. 4 pile shoes to the dock gate are measured, recorded and marked on the dock floor, and the marks include the vertical distances B3 and B33 of the center lines of the bow and stern of the ship to the dock wall, the vertical distances B1 and B2 of the center points of the cross-shaped projection of the No. 1 and No. 2 pile shoes to the horizontal plane to the first dock wall, the vertical distances A1 and A11 of the No. 1 and No. 2 pile shoes to the dock gate, the vertical distances B11 and B22 of the center points of the cross-shaped projection of the No. 3 and No. 4 pile shoes to the horizontal plane to the second dock wall, and the vertical distances A2 and A22 of the No. 3 and No. 4 pile shoes to the dock gate; the cross-shaped line of the projection of the pile shoe and the center line CL of the ship are drawn on the dock floor; the center lines of the bow and stern of the pile shoe are aligned with the marks on the dock floor;

[0014] The rib position of the center point of the cross-shaped projection of the No. 1 and No. 2 pile shoes is the first rib position, and the rib position of the center point of the cross-shaped projection of the No. 3 and No. 4 pile shoes is the second rib position, which is on the left side plate of the first rib position and the second rib position of the ship, respectively; the first mark point and the second mark point are made at the height position of the main deck, and the third mark point and the fourth mark point are made on the waterline of the bow and stern outer plates of the center line of the ship.

[0015] During the process of docking the ship, the vertical distance A1' of the first mark point to the dock gate and the vertical distance B3' of the third mark point to the left side wall of the dock are measured, respectively; the vertical distance A2' of the second mark point to the dock gate and the vertical distance B33' of the fourth mark point to the left side wall of the dock are measured, respectively; the values of A1' = A1, A2' = A2, B3' = B3 and B33' = B33 are kept; and the installation of the pile shoe is completed.

[0016] Further, the segmenting step further includes that female guide tools are respectively installed at the upper joint of the pile shoe, the first segment pile leg and the second segment pile leg; and male guide tools are respectively installed at the lower joint of the first segment pile leg, the second segment pile leg and the third segment pile leg.

[0017] Further, the step of installing the first segment pile leg further includes that a roller is used to hoist the first segment pile leg; and roller groups are respectively installed on the top deck of the pile fixing chamber and the main deck.

[0018] Further, the step of hoisting the first segment pile leg includes that the first segment pile leg is hoisted to the top deck of the pile fixing chamber; the direction of the position of the bolt hole on the first segment pile leg is adjusted to be viewed from above; the bow position of the first segment pile leg is 0°; and the bolt holes in the clockwise rotation direction are the 45° bolt hole, the 135° bolt hole, the 225° bolt hole and the 315° bolt hole in sequence.

[0019] The first segment pile leg is hoisted, and during the process of falling from the top deck of the pile fixing chamber, the longitudinal cross-shaped impact point connecting line of the bolt hole of the first segment pile leg needs to be aligned with the 45° cross-shaped line on the top deck of the pile fixing chamber.

[0020] The first segment pile leg is hoisted, and during the process of falling from the top deck of the pile fixing chamber, the longitudinal cross-shaped impact point connecting line of the bolt hole of the first segment pile leg needs to be aligned with the 45° cross-shaped line on the top deck of the pile fixing chamber.

[0021] When the pin hole of the first section of pile leg is axially aligned with the pin of the lower pile fixing ring beam in the pile fixing chamber in the height direction, the lower pile fixing ring beam is operated to insert the pin into the pin hole.

[0022] Further, the positioning assembly of the first section of pile leg and the pile shoe comprises:

[0023] The axial deviation of the lower converging opening of the first section of pile leg and the upper converging opening of the pile shoe is adjusted, and the vertical spacing of the lower converging opening of the first section of pile leg and the upper converging opening of the pile shoe is adjusted; and after the adjustment, welding is performed.

[0024] Further, the installation of the second section of pile leg comprises:

[0025] The steel wire is used to position the straightness of the pile leg: during the hoisting of the second section of pile leg, when the male guide tool of the lower converging opening of the second section of pile leg is completely inserted into the female guide tool of the upper opening of the first section of pile leg, one hanging steel wire tool is installed in each pin hole of the lower converging opening of the second section of pile leg; one hanging steel wire tool is installed in each pin hole of the upper converging opening of the first section of pile leg, the steel wire tool is arranged on the inner side of the pile leg, and the projection of the steel wire along the diameter direction of the pile leg to the pile leg is coincided with the connecting line of the longitudinal cross-shaped punching points on the inner side of the pile leg.

[0026] The axial deviation of the lower converging opening of the second section of pile leg and the upper converging opening of the first section of pile leg is adjusted, and the vertical spacing of the lower converging opening of the second section of pile leg and the upper converging opening of the first section of pile leg is adjusted; and after the adjustment, welding is performed.

[0027] Further, the installation of the third section of pile leg comprises:

[0028] The steel wire is used to position the straightness of the pile leg: during the hoisting of the third section of pile leg, when the male guide tool of the lower converging opening of the third section of pile leg is completely inserted into the female guide tool of the upper opening of the second section of pile leg, one hanging steel wire tool is installed in each pin hole of the lower converging opening of the third section of pile leg; one hanging steel wire tool is installed in each pin hole of the upper converging opening of the second section of pile leg, the steel wire tool is arranged on the inner side of the pile leg, and the projection of the steel wire along the diameter direction of the pile leg to the pile leg is coincided with the connecting line of the longitudinal cross-shaped punching points on the inner side of the pile leg.

[0029] The axial deviation of the lower converging opening of the third section of pile leg and the upper converging opening of the second section of pile leg is adjusted, and the vertical spacing of the lower converging opening of the third section of pile leg and the upper converging opening of the second section of pile leg is adjusted; and after the adjustment, welding is performed.

[0030] The beneficial effects of the present application are as follows:

[0031] The cylindrical pile leg and the pile shoe installation positioning method thereof ensure the manufacturing quality of the pile shoe and the pile leg, and through the positioning of the pile shoe on the bottom of the dock first, and then the positioning of the ship in the dock, compared with the positioning of the pile shoe in the bottom of the dock after the ship is docked first, the time for the displacement and adjustment positioning of the pile shoe in the dock is greatly reduced; through the scheme, the positioning of the pile leg on the ship in the floating state is realized, the time for the ship to occupy the dock is greatly reduced, and the operation efficiency of the dock is improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A flowchart of a cylindrical pile leg and a pile shoe installation positioning method thereof;

[0033] Figure 2 A pile leg and a pile shoe component arrangement diagram;

[0034] Figure 3 A pile leg and a pile shoe component side view arrangement diagram;

[0035] Figure 4 A pile leg and a pile shoe connection front view;

[0036] Figure 5 A pile leg plan view;

[0037] Figure 6 A guide tool installation schematic Figure 1 ;

[0038] Figure 7 A guide tool installation schematic Figure 2 ;

[0039] Figure 8 A ship body cross-sectional view schematic diagram;

[0040] Figure 9 A pile fixing chamber top deck marking schematic diagram;

[0041] Figure 10 A roller set installation arrangement schematic diagram;

[0042] Figure 11 A roller set arrangement schematic diagram on the top deck of the pile fixing chamber;

[0043] Figure 12 A roller set arrangement schematic diagram on the main deck;

[0044] Figure 13 A roller set installation node schematic diagram;

[0045] Figure 14 A pile leg arrangement and angle azimuth diagram;

[0046] Figure 15 A hoisting cross line alignment schematic diagram;

[0047] Figure 16The arrangement diagram of the pile ring beam;

[0048] Figure 17 The structure diagram of the pile ring beam bolt and the pile leg bolt hole;

[0049] Figure 18 The marking point diagram of the dock bottom and the dock wall;

[0050] Figure 19 The pile shoe arrangement diagram;

[0051] Figure 20 The marking point diagram of the ship body;

[0052] Figure 21 The positioning and sitting diagram of the ship in the dock;

[0053] Figure 22 The first section of the pile leg height diagram;

[0054] Figure 23 The pile shoe positioning tool arrangement diagram;

[0055] Figure 24 The pile shoe positioning diagram;

[0056] Figure 25 The pile shoe and pile leg positioning detection diagram;

[0057] Figure 26 The steel wire detection diagram;

[0058] Figure 27 The first section of the pile leg and the second section of the pile leg axis and height positioning.

[0059] Markings in the figure: A-pile shoe, B05-first section of the pile leg, ZT02-second section of the pile leg, ZT01-third section of the pile leg;

[0060] C1-axial cross-shaped punch point, C2-longitudinal cross-shaped punch point, C3-200mm inspection sample punch point marked at the pile shoe folding opening, C4-200mm inspection sample punch point marked at the pile leg folding opening, C5-45° bolt hole, C6-135° bolt hole, C7-225° bolt hole, C8-315° bolt hole, D1-connection axis, D3-200mm inspection line marked at the pile shoe folding opening, D4-200mm inspection line marked at the pile leg folding opening;

[0061] Guiding tool, E1-male guiding tool, E2-female guiding tool;

[0062] 9000A. BL - main deck, 21500A. BL - top deck of the pile room, L1 - fore-aft cross line of the pile room area, L2 - port-starboard cross line of the pile room area, L3 - 45° angle cross line of L1 line, L4 - 45° angle cross line of L2 line, L5 - longitudinal wall of the pile room area to the fore-aft cross line, L6 - transverse wall of the pile room area to the port-starboard cross line L6, CL - centerline;

[0063] Pulley block, G - leg wall plate, H - guide block, FH - distance between the outer surface of the roller of the roller block and the guide block; I - upper pile ring beam, J - lower pile ring beam, J1 - lower pile ring beam bolt, J2 - first section of the leg bolt hole;

[0064] P1 - first mark point, P2 - second mark point, P3 - third mark point, P4 - fourth mark point, P - total station, Q - positioning tool, R - steel wire hanging tool, R1 - steel wire. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be described clearly and completely in the description of the embodiments of the present application in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. It should be understood that the present application is not limited by the example embodiments disclosed herein. All other embodiments obtained by those of ordinary skill in the art without creative labor based on the embodiments in the present application belong to the scope of protection of the present application.

[0066] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0067] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0068] In the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, they can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] The newly made cylindrical legs have the same diameter as the original ship legs, the wall thickness is increased, and the length is increased. The newly made shoes have larger size and weight than the original shoes. As shown in Figure 2 The four legs are installed with new shoes and new legs. The front side of the ship is the bow, and the rear side of the ship is the stern. The new legs and the new shoes are four, as shown in Figure 3 The main components of a single leg and shoe are arranged in the direction.

[0070] As shown in Figures 4-5 The installation and positioning foundation of the newly made legs and shoes is set: including the axial and longitudinal cross-shaped punched points C1 / C2 of the pin holes of each leg, the cross-shaped punched points in the bow and stern ±45° direction of the shoe, and the lines connected respectively. The longitudinal cross-shaped punched points of the pin holes and the lines are led to the inner side of the leg, and it is required that the longitudinal cross-shaped punched points of the pin holes and the lines are measured on the same leg diameter direction. The same axial pin hole has four, from the view of the bow direction, the stern 0°, the clockwise direction 45° pin hole C5, the 135° pin hole C6, the 225° pin hole C7 and the 315° pin hole C8. The 200mm inspection sample punched points C3 marked on the closing port of the shoe and the 200mm inspection sample punched points C4 marked on the closing port of the leg are connected into lines as the 200mm inspection line D3 of the closing port of the shoe and the 200mm inspection line D4 of the closing port of the leg.

[0071] The installation requirements of the leg and the shoe are as follows:

[0072] 1. The vertical distance between the axial punched points C1 of any two adjacent pin holes in the longitudinal direction of the leg is 2000±1mm;

[0073] 2. The deviation of the axial line D1 of the longitudinal punched points of the upper and lower segmented closing ports is not more than 1mm;

[0074] 3. The vertical distance between the 200mm inspection punched points of the closing port of the leg and the shoe is 400±0.5mm;

[0075] 4. The straightness error of the longitudinal line of the pin hole within the range of 19.5m of any leg is not more than 5mm.

[0076] In order to solve the above-mentioned problem of replacing the new pile leg, a cylindrical pile leg and a pile shoe installation and positioning method thereof are provided, including the following steps:

[0077] S1: segmenting the cylindrical pile leg into a first segment pile leg, a second segment pile leg and a third segment pile leg.

[0078] S2: hoisting the first segment pile leg under the wharf floating state of the ship.

[0079] S3: installing the pile shoe; before the ship enters the dock, the pile shoe is placed in position on the dock bottom; after the ship enters the dock, the pile shoe directly falls on the position of the placed pile shoe area in the ship.

[0080] S4: assembling the first segment pile leg and the pile shoe; after the first segment pile leg and the pile shoe are positioned, the assembly is completed.

[0081] S5: installing the second segment pile leg; after the assembly of the pile shoe and the first segment pile leg is completed in the dock, the ship is docked out, the second segment pile leg is hoisted under the wharf floating state, and the assembly is completed after the second segment pile leg and the first segment pile leg are positioned.

[0082] S6: installing the third segment pile leg; the third segment pile leg is hoisted under the wharf floating state, and the assembly is completed after the third segment pile leg and the second segment pile leg are positioned. The installation of the third segment pile leg is the same as the installation of the second segment pile leg.

[0083] The embodiment scheme only illustrates the installation and positioning scheme of the pile leg and the pile shoe, and the segmenting process is not discussed in the scheme; the installation and positioning methods of the four piles are consistent, and only the installation and positioning method of one pile leg is discussed. Figure 1 The specific steps are as follows:

[0084] S101: segmenting the cylindrical pile leg into a first segment pile leg B05, a second segment pile leg ZT02 and a third segment pile leg ZT01; the first segment pile leg B05 is 23.21 m long, the second segment pile leg ZT02 is 40 m long, and the third segment pile leg ZT01 is 37.67 m long.

[0085] The first segment pile leg B05, the second segment pile leg ZT02 and the third segment pile leg ZT01 are respectively marked on the pin hole axis, the longitudinal cross-shaped punched points and the cross-shaped punched points in the bow and stern ±45° direction of the pile shoe.

[0086] S102: Install guide fixture: Before hoisting the first section of pile leg B05, the common guide fixture E1 needs to be installed at the lower closing joint of the first section of pile leg B05.

[0087] Specifically, such as Figures 6-7 The guide fixture E is shown. Female guide fixture E2 is installed at the upper closure of pile shoe A, first pile leg B05, and second pile leg ZT02; male guide fixture E1 is installed at the lower closure of first pile leg B05, second pile leg ZT02, and third pile leg ZT01. The function of guide fixture E is to initially and quickly limit the height, diameter, and axial direction of the segment during the hoisting and segmentation process, and then perform precise positioning.

[0088] S201: Marking the positioning line: During the stage when the original pile shoe is removed in the dock, a cross positioning line is marked on the top deck of the pile fixing chamber for the axial positioning of the first pile leg B05 relative to the hull.

[0089] Specifically, such as Figures 8-9 As shown, the bow and stern crosshairs L1 and L2 of the pile-stabilizing chamber area are marked on the top deck surface 21500A.BL of the pile-stabilizing chamber using a center punch. Mark the crosshair line L5 from the longitudinal wall of the pile-stabilizing chamber area to the bow and stern crosshair line L6 from the transverse wall of the pile-stabilizing chamber area to the left and right crosshairs. Using a total station, measure the crosshairs L3 and L4 at a 45° angle between lines L1 and L2 and mark them on the top deck surface 21500A.BL of the pile-stabilizing chamber using a center punch.

[0090] S202: Install roller assembly: as follows Figures 10-12 As shown, in order to reduce the sliding friction between the first pile leg B05 and the guide block on the wall of the pile fixing chamber during the hoisting of the first pile leg B05, a set of roller groups F is designed. Four roller groups F are installed on the top deck 21500A.BL and the main deck 9000A.BL of the pile fixing chamber, respectively. This will generate rolling friction between the outer wall of the first pile leg B05 and the roller group F during the hoisting of the first pile leg B05, thereby reducing the friction value and reducing the hoisting difficulty.

[0091] Specifically, such as Figure 13 As shown, when installing roller assembly F, it is important to note that the distance between the guide block H and the pile leg wall plate G is 10mm. When installing roller assembly F, the distance FH between the outer surface of the roller assembly F and the guide block H should be controlled to be 3-5mm, and the outer surface of the roller assembly F should be closer to the pile leg wall plate G.

[0092] S203: Lifting the first pile leg section B05: When the first pile leg section B05 is lifted to the top deck of the pile fixing chamber at 21500A.BL, adjust the orientation of the pin holes on the first pile leg section B05 to the design direction. For example... Figure 14As shown, viewed from above, the first section of the pile leg B05 is at 0° bow position, and the pin hole in the clockwise rotation direction is the 45° pin hole C5, followed by the 135° pin hole C6, the 225° pin hole C7, and the 315° pin hole C8.

[0093] Specifically, as shown, during the process of hoisting the first section of the pile leg B05 and falling it from the pile fixing chamber top deck 21500A.BL, the longitudinal cross-shaped punch point connecting line of the first section of the pile leg B05 needs to be aligned with the 45° angle cross lines L3 and L4 on the pile fixing chamber top deck 21500A.BL. Figure 15

[0094] If the first section of the pile leg B05 rotates axially during the falling process, the longitudinal cross-shaped punch point connecting line of the pile leg pin hole deviates from the 45° angle cross lines L3 and L4 on the pile fixing chamber top deck 21500A.BL, and the deviation needs to be adjusted by using a jack to axially apply external force through the pin hole to adjust the axial rotation of the first section of the pile leg B05.

[0095] As shown, when the four pin holes at the lowermost edge of the first section of the pile leg B05 are axially aligned with the four pins of the lower pile fixing ring beam J in the pile fixing chamber, the lower pile fixing ring beam J can be operated to insert the pins into the pin holes to complete the pile fixing. Figures 16-17

[0096] After the lower pile fixing ring beam pins are inserted into the first section of the pile leg pin holes J2 and the pins bear the gravity of the first section of the pile leg B05, the crane is slowly released until the crane wire is completely free of the gravity of the first section of the pile leg B05, the crane hook can be released, and the hoisting work of the first section of the pile leg B05 is completed.

[0097] S301: Draw a line on the dock bottom and mark points on the dock wall: as shown, Figure 18 According to the ship docking and undocking pier diagram and the ship structure diagram, the vertical distance B3 and B33 from the centerline CL to the dock wall is measured and recorded using the total station P, and the value of B3 is equal to the value of B33. The vertical distance B1 and B2 from the cross center point of the projection of the No. 1 and No. 2 pile shoes to the dock wall is equal to the value of B22, and the vertical distance A1 and A11 from the cross center point of the projection of the No. 1 and No. 2 pile shoes to the dock door is equal to the value of A11. The vertical distance B11 and B22 from the cross center point of the projection of the No. 3 and No. 4 pile shoes to the dock wall is equal to the value of B22, and the vertical distance A2 and A22 from the cross center point of the projection of the No. 3 and No. 4 pile shoes to the dock door is equal to the value of A22. According to the above measured data, the cross line of the pile shoe projection horizontal plane and the centerline CL are drawn on the dock ground.

[0098] S302: Place the pile shoe A: as shown,​​Figure 19 As shown, according to the sledge projection horizontal plane cross line drawn on the dock ground, the sledge bow-stern center line and the left and right side center line are aligned with the cross line on the dock ground.

[0099] S303: Ship body marking point: as shown in Figure 20 As shown, the first rib position of the center point of the No. 1 and No. 2 sledge projection cross line, and the second rib position of the center point of the No. 3 and No. 4 sledge projection cross line. The first marking point P1 and the second marking point P2 are made at the left side plate of the first rib position and the second rib position of the main deck 9000A. BL height position. The third marking point P3 and the fourth marking point P4 are made on the waterline of the bow and stern plate of the centerline CL of the ship, which are used for positioning the ship when docking.

[0100] S304: Ship docking positioning: during the process of ship docking, two total stations P are used for ship docking positioning to ensure that the sledge area of the ship body can be accurately placed on the sledge A placed on the dock bottom in advance when the ship is docked.

[0101] Specifically, according to the recorded distance values A1, A2, B3 and B33, as the positioning data for the ship docking positioning. As shown in Figure 21 As shown, one total station P is erected on the dock side near the bow and stern of the ship. During the process of ship docking, the total station P near the bow measures the vertical distance A1' from the first point P1 to the dock gate, and the vertical distance B3' from the third point P3 to the left side of the dock wall; the total station P near the stern measures the vertical distance A2' from the second point P2 to the dock gate, and the vertical distance B33' from the fourth point P4 to the left side of the dock wall, keeping the values A1'=A1, A2'=A2, B3'=B3, B33'=B33. If there is a deviation in the process, the length of the cable is adjusted in time to adjust the position of the ship, so as to realize the precise docking of the ship.

[0102] S401: Adjust the height of the first section of the pile leg B05: as shown in Figure 22 As shown, by the cooperation of the upper and lower fixed pile ring beams, the first section of the pile leg B05 is adjusted to be about 100mm below the closed mouth of the sledge. A 100mm gap is reserved to facilitate the precise positioning of the sledge A.

[0103] S402: Adjust the sledge A for positioning: two positioning fixtures Q are installed at the bow and stern ends of the sledge, respectively, as shown in Figure 23 As shown, the positioning fixture Q can be removed after the sledge A and the first section of the pile leg B05 complete all inspection work. As shown in Figure 24 The three-dimensional adjustment machine equipment can realize the position adjustment of the sledge A in three-dimensional direction through the bow-stern direction and left-right direction adjustment devices, so as to realize the positioning adjustment of the sledge A and the first section of the pile leg B05.

[0104] S403: Positioning detection of the pile shoe A and the first section of the pile leg B05: As shown in the figure, the positioning detection of the pile shoe A and the first section of the pile leg B05 is as follows: Figure 25

[0105] 1. The axial deviation of the longitudinal sample punch point connecting line of the upper and lower section closing opening is not more than 1 mm;

[0106] 2. The vertical spacing of the 200 mm test sample punch point of the pile leg and pile shoe closing opening mark is 400±0.5 mm.

[0107] Specifically, the detection is made at the longitudinal sample punch point connecting line position of the 45° pin hole, 135° pin hole, 225° pin hole, and 315° pin hole. The detection tool is a steel ruler. The detection is made before welding, process monitoring, and detection after welding. The completion of the detection means the completion of the installation of the pile shoe A and the first section of the pile leg B05.

[0108] S501: Pulling and setting the steel wire to position the straightness of the pile leg: During the hoisting of the second section of the pile leg ZT02, when the four male guide fittings of the lower closing opening of the second section of the pile leg ZT02 are completely inserted into the four female guide fittings of the upper closing opening of the first section of the pile leg B05, as shown in the figure, one hanging steel wire fitting R is installed in each of the four pin holes of the sixth layer of the lower closing opening of the second section of the pile leg ZT02, and one hanging steel wire fitting R is installed in each of the four pin holes of the sixth layer of the upper closing opening of the first section of the pile leg B05. Figure 26

[0109] Specifically, the hanging steel wire fitting R is used to detect the longitudinal straightness error of the pin hole within the range of 19.5 m of the second section of the pile leg ZT02, which is not more than 5 mm. The steel wire R1 is set inside the pile leg, and the projection of the steel wire R1 along the diameter direction of the pile leg to the pile leg is required to coincide with the connecting line of the cross-shaped sample punch point of the pin hole inside the pile leg. The steel ruler is used to measure the distance T value between the pile leg and the steel wire R1. When measuring the T value, the steel ruler needs to be along the diameter direction of the pile leg. The measurement points are spaced 1000 mm apart. The difference between any two T values measured for the same longitudinal pin hole is required to be not more than 5 mm. When the requirement is met, the straightness positioning of the first section of the pile leg B05 and the second section of the pile leg ZT02 is completed.

[0110] S502: Axis and height positioning of the first section of the pile leg B05 and the second section of the pile leg ZT02: The axis and height positioning of B05 and ZT02 is similar to the positioning of the pile shoe and B05 section, and the requirements are as follows:

[0111] 1. The vertical connecting line spacing of the axial sample punch points of any two adjacent pin holes in the longitudinal direction of the pile leg is 2000±1 mm;

[0112] 2. The axial deviation of the longitudinal sample punch point connecting line of the upper and lower section closing opening is not more than 1 mm.​​

[0113] Specifically, as shown in Figure 27 The vertical distance between the axial sample punch points is measured, and a steel ruler is required to be parallel to the longitudinal sample punch point line of the bolt hole. The axial deviation of the longitudinal sample punch point line of the upper and lower segments is not greater than 1 mm, and the detection is performed at the longitudinal sample punch point line positions of the 45° bolt hole, the 135° bolt hole, the 225° bolt hole and the 315° bolt hole. The detection tool is a steel ruler. The detection is performed before welding, process monitoring and after welding. The completion of the detection is the completion of the installation work of the first section of the pile leg B05 and the second section of the pile leg ZT02.

[0114] S601: hoisting the third section of the pile leg ZT01

[0115] The positioning mode of the third section of the pile leg ZT01 and the second section of the pile leg ZT02 is consistent with the positioning mode of the second section of the pile leg ZT02 and the first section of the pile leg ZB05, and reference is made to steps S501-S502.

[0116] The cylindrical pile leg and the pile shoe installation and positioning method thereof ensure the manufacturing quality of the pile shoe and the pile leg, and greatly reduce the time for displacement and positioning of the pile shoe in the dock by positioning the pile shoe on the dock bottom first and then positioning the ship in the dock, compared with positioning the pile shoe in the dock after the ship is positioned in the dock. The ship occupies the dock for a short time, and the operation efficiency of the dock is improved.

[0117] It should also be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0118] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for installing and positioning a cylindrical pile leg and its pile shoe, characterized in that, The specific steps are as follows: Segmentation: The cylindrical pile leg is divided into a first pile leg segment, a second pile leg segment, and a third pile leg segment. Hoisting the first leg section: The first leg section is hoisted while the ship is floating at the dock. The first leg section is lifted to the top deck of the pile fixing chamber. The orientation of the pin holes on the first leg section is adjusted so that, viewed from above, the first leg section is at 0° towards the bow. The pin holes in the clockwise direction are, in sequence, 45° pin holes, 135° pin holes, 225° pin holes, and 315° pin holes. During the hoisting and lowering of the first leg section from the top deck of the pile fixing chamber, the longitudinal crosshair line connecting the pin holes of the first leg section needs to be aligned with the 45° crosshair line on the top deck of the pile fixing chamber. When the pin holes of the first leg section are aligned with the pins of the lower pile fixing ring beam in the pile fixing chamber in terms of height and axial direction, the lower pile fixing ring beam is operated to insert the pins into the pin holes. Installing the pile shoes: Before the ship enters the dock, place the pile shoes in place on the bottom of the dock; after the ship enters the dock, the pile shoes are placed directly on the designated pile shoe area inside the ship. Assembly of the first pile leg and pile shoe: After the first pile leg and the pile shoe are positioned, they are assembled; Installation of the second leg section: After the assembly of the pile shoe and the first leg section is completed in the dry dock, the ship leaves the dry dock and the second leg section is hoisted in a floating state at the pier. After the second leg section is positioned with the first leg section, it is assembled. Installation of the third leg section: The third leg section is hoisted while the wharf is floating. After the third leg section is positioned with the second leg section, it is assembled. The installation pile shoe includes: The pile shoes are numbered 1, 2, 3, and 4. Measurements are taken, records are recorded, and marks are made on the dock floor. These marks include the vertical distances B3 and B33 from the bow and stern centerlines to the dock wall; the vertical distances B1 and B2 from the center point of the crosshairs projected onto the horizontal plane of pile shoes 1 and 2 to the first dock wall; the vertical distances A1 and A11 from the projections of pile shoes 1 and 2 to the dock gate; the vertical distances B11 and B22 from the center point of the crosshairs projected onto the horizontal plane of pile shoes 3 and 4 to the second dock wall; and the vertical distances A2 and A22 from the projections of pile shoes 3 and 4 to the dock gate. Crosshairs and the ship's centerline CL are drawn on the dock floor, representing the projections of the pile shoes onto the horizontal plane. The centerlines of the bow and stern faces of the pile shoes, as well as the centerlines of the left and right sides, are aligned with the marks on the dock floor before placement. The ribs where the center points of the projection crosshairs of pile shoes No. 1 and No. 2 are located are the first ribs, and the ribs where the center points of the projection crosshairs of pile shoes No. 3 and No. 4 are located are the second ribs. The first and second marking points are made on the port side outer plating of the first and second ribs of the ship, at the height of the main deck, respectively. The third and fourth marking points are made on the waterline of the bow and stern outer plating of the ship's centerline. During the docking process, the vertical distance A1' from the first marker point to the dock gate and the vertical distance B3' from the third marker point to the port side dock wall are measured at the bow. At the stern, the vertical distance A2' from the second marker point to the dock gate and the vertical distance B33' from the fourth marker point to the port side dock wall are measured, keeping the values ​​A1'=A1, A2'=A2, B3'=B3, and B33'=B33. The installation of the pile shoes is then completed.

2. The method for installing and positioning the cylindrical pile leg and its pile shoe according to claim 1, characterized in that, The segmentation step further includes: installing female guide fixtures at the upper closure joints of the pile shoe, the first pile leg, and the second pile leg; and installing male guide fixtures at the lower closure joints of the first pile leg, the second pile leg, and the third pile leg.

3. The method for installing and positioning the cylindrical pile leg and its pile shoe according to claim 2, characterized in that, The step of hoisting the first pile leg also includes: using rollers to hoist the first pile leg; and installing roller sets on the top deck and main deck of the pile fixing chamber respectively.

4. The method for installing and positioning the cylindrical pile leg and its pile shoe according to claim 2, characterized in that, The first segment of the pile leg and the pile shoe positioning assembly includes: Adjust the axial deviation between the lower closure of the first pile leg section and the upper closure of the pile shoe, and adjust the vertical distance between the lower closure of the first pile leg section and the upper closure of the pile shoe; weld after adjustment.

5. The method for installing and positioning the cylindrical pile leg and its pile shoe according to claim 4, characterized in that, The installation of the second section of the pile leg includes: Straightness of the pile leg positioned by setting up steel wire: During the hoisting of the second pile leg, when the male guide tool at the lower closing opening of the second pile leg is fully inserted into the female guide tool at the upper opening of the first pile leg, install one steel wire hanging tool in each of the pin holes above the lower closing opening of the second pile leg; install one steel wire hanging tool in each of the pin holes below the upper closing opening of the first pile leg. The steel wire tools are pulled on the inside of the pile leg, and the projection of the steel wire along the diameter direction of the pile leg onto the projection of the pile leg coincides with the line connecting the longitudinal cross-shaped punch points of the pin holes on the inside of the pile leg. Adjust the axial deviation between the lower closure of the second pile leg and the upper closure of the first pile leg, and adjust the vertical distance between the lower closure of the second pile leg and the upper closure of the first pile leg; weld after adjustment.

6. The method for installing and positioning the cylindrical pile leg and its pile shoe according to claim 5, characterized in that, The installation of the third section of the pile leg includes: Straightness of the pile leg positioned by setting up steel wire: During the hoisting of the third pile leg, when the male guide tool at the lower closing opening of the third pile leg is fully inserted into the female guide tool at the upper opening of the second pile leg, install one steel wire hanging tool in each of the pin holes above the lower closing opening of the third pile leg; install one steel wire hanging tool in each of the pin holes below the upper closing opening of the second pile leg. The steel wire tools are pulled on the inside of the pile leg, and the projection of the steel wire along the diameter direction of the pile leg onto the projection of the pile leg coincides with the line connecting the longitudinal cross-shaped punch points of the pin holes on the inside of the pile leg. Adjust the axial deviation between the lower closure of the third pile leg and the upper closure of the second pile leg, and adjust the vertical distance between the lower closure of the third pile leg and the upper closure of the second pile leg; weld after adjustment.

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