CN114275118B - Pier falling and pulling method for split ship - Google Patents
Pier falling and pulling method for split ship Download PDFInfo
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- CN114275118B CN114275118B CN202210052533.9A CN202210052533A CN114275118B CN 114275118 B CN114275118 B CN 114275118B CN 202210052533 A CN202210052533 A CN 202210052533A CN 114275118 B CN114275118 B CN 114275118B
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Abstract
The invention discloses a dock block assembly for landing and leaning of an open-body ship, which comprises a port half-body dock block and a starboard half-body dock block, wherein the port half-body dock block comprises a cement sand box dock block and a slide plate dock block which are arranged in parallel, and the cement sand box dock block comprises a first concrete dock block, a movable sand box, a first wedge and a second wedge which are sequentially arranged from bottom to top; the slide board docking block comprises a second docking block, a first backing plate, a lubricating layer, a slide board, an adjusting pipe fitting and a second backing plate which are sequentially arranged from bottom to top. The dock block assembly is used for reducing the height of the port dock block, so that the deck of the port dock block is flush with the deck of the starboard dock block, and then the starboard dock block is pulled against by utilizing the telescopic pressure of the hydraulic cylinder in the fore-and-aft cylinder cabin of the split ship, so that the requirement on the lifting capacity of a shipyard is avoided. The docking block assembly is simple to manufacture and can be reused, the application method of the docking block assembly is simple, and the docking block assembly has the advantages of being easy to control in positioning accuracy and safe and reliable to operate in the application process.
Description
Technical Field
The invention relates to the field of ship manufacturing and ocean engineering, in particular to a split ship pier falling and leaning method.
Background
The split ship is composed of a left ship body and a right ship body which are independent and symmetrical. The two sheet body sections are combined and connected by a hinge arranged at the bow part and the stern part of the deck, the bottom of the two sheet body sections is supported by two sets of hydraulic cylinders, and the split ship opens and closes the two halves through the deck hinge and the split cylinder. The mud cabin is sealed between the two sheet body ship bodies, and after the mud cabin is sealed, the left sheet body and the right sheet body can be folded in place. The conventional construction method is to hoist two sheet bodies in place by using a large-sized gantry crane of a shipyard, but the premise is that the hoisting capacity of the gantry crane of the shipyard is enough, and in addition, when the two sheet bodies are hoisted, the gantry crane has longer service time, higher energy consumption and harder control of positioning accuracy.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a split ship pier falling and leaning method, which solves one or more problems, greatly reduces the ship construction period, has better precision control, avoids using a large gantry crane and further saves energy.
In order to achieve the above-mentioned object,
in a first aspect, the invention provides a docking block assembly for landing and pulling an open-body ship, the open-body ship comprises a port half body and a starboard half body, the docking block assembly comprises a port half body docking block arranged on a docking floor corresponding to the port half body, a starboard half body docking block arranged on the docking floor corresponding to the starboard half body, the starboard half body docking block comprises a plurality of docking blocks,
the left side half body docking block comprises a plurality of cement sand box docking blocks and a plurality of slide plate docking blocks, the slide plate docking blocks and the cement sand box docking blocks are arranged in parallel, the cement sand box docking blocks comprise a first concrete docking block, a movable sand box, a first wedge and a second wedge which are sequentially arranged from bottom to top, a slope plate structure is arranged in the movable sand box, and sand is filled in the movable sand box above the slope plate structure; the slide board dock block comprises a second dock block, a first base plate, a lubricating layer, a slide board, an adjusting pipe fitting and a second base plate which are sequentially arranged from bottom to top, the upper surface of the second dock block is leveled by cement to form a leveling layer, the first base plate is paved on the leveling layer, and the upper base surface of the second base plate is connected with an outer plate at the bottom of the port semi-body.
In some embodiments, the left-side half body docking block and the right-side half body docking block both comprise auxiliary piers, the auxiliary piers comprise triangular supports, the upper ends of the triangular supports are fixedly connected with the left-side half body outer plate, the lower ends of the triangular supports are fixedly connected with a third base plate, steel plates are paved on the dock bottoms corresponding to sliding tracks of the auxiliary piers in the left-side half body docking block, the distance between the steel plates and the tool bottom plate is 20 mm, and lubricating grease is smeared on the upper surfaces of the steel plates.
In some embodiments, the thickness of the first concrete docking block is greater than the thickness of the segmented flask, the thickness of the segmented flask is greater than the thickness of the first wedge, and the thickness of the first wedge is greater than the thickness of the second wedge; the width of the first concrete docking block is larger than that of the loose sand box, and the width of the loose sand box is larger than that of the first wedge; the length of the first concrete docking block is larger than that of the movable sand box, the length of the movable sand box is larger than that of the first wedge, and the lengths and the widths of the first wedge and the second wedge are equal.
In some embodiments, the first concrete docking block has a thickness of 1000 mm, a length of 1500 mm, and a width of 500 mm; the thickness of the movable sand box is 500 mm, and the length is 900 mm; the thickness of the first wedge is 220 mm, the thickness of the second wedge is 100 mm, and the widths of the first wedge and the second wedge are both 250 mm.
In some embodiments, limiting devices perpendicular to the sliding direction of the sliding plate are additionally arranged on two sides of the sliding plate on the first base plate, lubricating oil is coated on the first base plate on the inner side of the limiting devices to form a lubricating layer, and the sliding plate is paved on the lubricating layer.
In some embodiments, the width of the second docking block is greater than or equal to the width of the first pad, the length of the second docking block is greater than or equal to the length of the first pad, the width of the first pad is greater than the width of the slide plate, the width of the slide plate is greater than the width of the second pad, the distance between the two limiting devices is greater than the width of the slide plate, and the slide plate slides along the length direction of the first pad.
In some embodiments, the second docking block has a width of 1000 mm, a length of 6000 mm, a thickness of 1500 mm, the first pad has a thickness of 40 mm, and the slide plate has a width of 900 mm and a thickness of 40 mm; the distance between the outer plate at the bottom of the port semi-body and the upper surface of the skateboard is 200 mm.
In a second aspect, the invention provides an application method of a docking block assembly for landing and leaning of a split ship, which comprises the following steps:
arranging the left-side half-body docking block and the right-side half-body docking block described in the first aspect on a docking station according to a docking block arrangement drawing, wherein the positions of the left-side half-body docking block and the right-side half-body docking block correspond to the positions of strong members on the open-body ship;
respectively landing the left side half body and the right side half body on the left side half body docking block and the right side half body docking block, wherein the height of the bottom of the left side half body is larger than that of the bottom of the right side half body;
the method comprises the steps of folding a starboard half body based on a starboard half body, firstly lowering a deck of the port half body by using a cement sand box dock block to enable the deck of the port half body and the deck of the starboard half body to be on the same horizontal plane, then transversely folding a sliding plate located on the sliding plate dock block and the port half body together with the starboard half body by using the telescopic pressure of a hydraulic cylinder in a split ship bow and tail cylinder cabin, and adding auxiliary facilities to be matched with the hydraulic cylinder in the ship bow and tail cylinder cabin when the telescopic pressure of the hydraulic cylinder in the ship bow and tail cylinder cabin is smaller than the static friction force of the movement of the port half body, wherein the auxiliary facilities comprise a chain block and a hydraulic jack;
the closure of the left side half body and the right side half body is realized through a first clamping sealing device arranged on the limiting plate on the bottom plate outside the left side half body and a second clamping sealing device arranged on the limiting plate on the bottom plate outside the right side half body;
and after being folded in place, the docking block is partially arranged below the port half body.
In some embodiments, the method further comprises the step of carrying out ship construction checking work before the pier falling and leaning work is carried out, and checking whether the ship construction is finished or not, wherein the ship construction comprises the steps of installing a mud cabin sealing device, manufacturing and installing a deck hinging point device, enabling a bow and tail hydraulic cylinder to meet the use requirement before the left and right side half body is folded, carrying out plate seam and hull tightness test, and carrying out sealing check on a sea area, wherein the sea area comprises a sea bottom door, a mud cabin area sea mud pipe and an overflow cylinder.
In some embodiments, an auxiliary limiting tool is fixed on the deck of the port half body, the length of the auxiliary limiting tool after pier falling can extend to the upper side of the starboard half body, and when the deck of the port half body and the deck of the starboard half body are on the same horizontal plane, the bottom surface of the auxiliary limiting tool is attached to the upper surface of the deck of the starboard half body;
the lifting distance h of the port half body is 18-22 mm compared with that of the starboard half body.
In summary, the invention has the following beneficial effects:
1. the half body is pulled by utilizing the hydraulic cylinder in the ship bow and tail cylinder cabin of the ship, so that the method is simple, and the requirement on the lifting capacity of a shipyard is avoided;
2. the manufacturing of the steel plates, the triangular supports and the like paved on the sliding track of the docking block, the slideway, the sliding plate and the auxiliary block is simple;
3. the positioning precision is easy to control, and the up-down precision and the left-right precision are ensured simultaneously when the gantry crane is used for positioning, so that the precision control is difficult;
4. the operation is safe and reliable, and when the gantry crane is used for positioning the port semi-body, the port semi-body is easily impacted by the inertia of the gantry crane operation to collide with the starboard semi-body, so that local damage can be caused.
Drawings
Fig. 1 is a view of a docking block arrangement in some embodiments of the present invention;
fig. 2 is a schematic structural view of an auxiliary limiting fixture welded on a port deck according to some embodiments of the present invention;
FIG. 3 is an installation view of a port half bottom auxiliary pier in some embodiments of the present invention;
FIG. 4 is a schematic cross-sectional view of a front port and starboard half closed in accordance with some embodiments of the present invention;
fig. 5 is a schematic cross-sectional view of a cement sand box docking block according to some embodiments of the present invention;
fig. 6 is a front view of a cement bin docking block in some embodiments of the invention;
figure 7 is a right side view of a ski docking block in some embodiments of the present invention.
Detailed Description
The invention is described in further detail below with reference to fig. 1-7.
Example 1
The embodiment provides a dock block assembly for landing and leaning of a split ship,
the split ship comprises a port half body 1 and a starboard half body 2, the dock block assembly comprises a port half body dock block which is arranged on the bottom of the dock corresponding to the port half body 1, and a starboard half body dock block which is arranged on the bottom of the dock corresponding to the starboard half body 2, the starboard half body dock block comprises a plurality of dock blocks 6, wherein the dock blocks 6 can directly adopt the existing dock block structure and are not the invention points of the invention, therefore, the invention is not described in detail herein,
the left side half body docking block comprises a plurality of cement sand box docking blocks 3 and a plurality of slide plate docking blocks 4, the slide plate docking blocks 4 and the cement sand box docking blocks 3 are arranged in parallel, the cement sand box docking blocks 3 comprise a first concrete docking block 301, a movable sand box 303, a first wedge 304 and a second wedge 305 which are sequentially arranged from bottom to top, a slope plate structure 302 is arranged in the movable sand box 303, sand is filled in the movable sand box 303 above the slope plate structure 302, the sand is convenient to leak from the side, the bottom of a left side half body 1 falls onto the slide plate docking blocks 4, and the bottom of the left side half body 1 falls onto the slide plate docking blocks 4 at the same horizontal height as the bottom of a right side half body 2 through the arrangement of the cement sand box docking blocks 3, so that the left side half body 1 is convenient to pull; the slide board dock block 4 comprises a second dock block 401, a first backing plate 403, a lubricating layer, a slide board 404, an adjusting pipe fitting 406 and a second backing plate 407 which are sequentially arranged from bottom to top, the surface of the second dock block 401 is leveled by cement to form a leveling layer 402, the first backing plate 403 is paved on the leveling layer 402, the upper base surface of the second backing plate 407 is connected with the outer plate at the bottom of the port half body 1, and the unevenness of the upper surface of the first backing plate 401 is +/-3 mm.
In a specific implementation, the center points of the first concrete docking block 301, the segmented sand box 303, the first wedge 304 and the second wedge 305 are on the same straight line.
The left side half body dock block and the right side half body dock block both comprise auxiliary piers 5, the auxiliary piers comprise triangular supports 9, the upper ends of the triangular supports 9 are fixedly connected with outer plates of the left side half body 1, the lower ends of the triangular supports 9 are fixedly connected with third base plates 10, steel plates 11 are paved on sliding tracks corresponding to the auxiliary piers in the left side half body dock block on the bottom of a dock, the distance between the steel plates 11 and tool bottom plates is 20 mm, lubricating grease is smeared on the upper surfaces of the steel plates 11, the triangular supports 9 can be of triangular support structures made of I-steel or channel steel, and the tool bottom plates are used for moving half bodies, namely, the planking of dock ground in the bow-stern area of the left side half body 1.
The thickness of the first concrete docking block 301 is larger than that of the movable sand box 303, the thickness of the movable sand box 303 is larger than that of the first wedge wood 304, and the thickness of the first wedge wood 304 is larger than that of the second wedge wood 305; the width of the first concrete docking block 301 is larger than the width of the loose sand box 303, and the width of the loose sand box 303 is larger than the width of the first wedge 304; the length of the first concrete docking block 301 is greater than the length of the loose sand box 303, the length of the loose sand box 303 is greater than the length of the first wedge 304, and the length and width of the first wedge 304 and the second wedge 305 are equal, for example: the thickness of the first concrete docking block 301 is 1000 mm, the length is 1500 mm, and the width is 500 mm; the thickness of the segmented sand box 303 is 500 mm, and the length is 900 mm; the thickness of the first wedge 304 is 220 mm, the thickness of the second wedge 305 is 100 mm, and the widths of the first wedge 304 and the second wedge 305 are both 250 mm.
Limiting devices 405 perpendicular to the sliding direction of the sliding plate are additionally arranged on two sides of the sliding plate on the first backing plate 403, lubricating oil is coated on the first backing plate 403 on the inner side of the limiting devices 405 to form a lubricating layer, and the sliding plate 404 is paved on the lubricating layer. The stop 405 is made of angle steel or its equivalent. The sliding direction of the sliding plate is guided by the limiting device 405, so that the stability and the reliability of the sliding plate 404 in the sliding process are further ensured.
The width of the second docking block 401 is equal to the width of the first backing plate 403, the width of the first backing plate 403 is larger than the width of the sliding plate 404, the width of the sliding plate 404 is larger than the width of the second backing plate 407, the distance between the two limiting devices 405 is larger than the width of the sliding plate 404, and the sliding plate 404 slides along the length direction of the first backing plate 403. The length and width of the second docking block 401 are greater than or equal to the length and width of the first pallet 403, respectively. Such as: the width of the second docking block 401 is 1000 mm, the length is 6000 mm, the thickness is 1500 mm, the thickness of the first backing plate 403 is 40 mm, the width of the sliding plate 404 is 900 mm, and the thickness is 40 mm; the distance between the outer plate at the bottom of the port side half body 1 and the upper surface of the slide plate 404 is 200 mm. The first backing plate 403 and the slide plate 404 are each steel plates.
Example 2
In connection with the contents shown in fig. 1 to 7, the port half 1 of the split ship is set to be movable in a raised state, and the starboard half 2 is set to be fixed. The actual distance (mud cabin flat area) between the two half bodies is larger than or equal to 380 mm, which is the designed distance after the ship body is pulled back. The actual spacing between the two halves on the dock block arrangement drawing is assumed to be 380 mm, and the spacing between the port half 1 and the starboard half 2 when the blocks fall is about 1100 mm (considering the construction distance before the ship is pulled). The folding route is that taking the starboard half body 2 as a reference, the left side half body 1 falls down and sinks for 20 mm, and the left side half body translates to the right for 720 mm.
In the embodiment, the application method of the dock block assembly for landing and leaning of the split ship is provided,
the method comprises the following steps:
step 1, arranging a port half body docking block and a starboard half body docking block described in the embodiment 1 on a dock bottom according to a docking block arrangement drawing, arranging 3-5 channels of sliding plate docking blocks 4 in the port half body docking block, arranging 2 channels of auxiliary docking blocks 5 in the port half body docking block and the starboard half body docking block, wherein one channel of the auxiliary docking blocks corresponds to a ship bow, the other channel of the auxiliary docking blocks corresponds to a ship stern, paving a steel plate 11 at a sliding track corresponding to the auxiliary docking blocks 5 in the port half body 1, wherein the distance between the steel plate 11 and a tooling bottom plate is 20 mm, and lubricating grease is smeared on the upper surface of the steel plate 11, wherein the steel plate 11 can be a steel plate with the thickness of 30 mm, firstly, calculating the number of docking blocks according to the total weight of a ship body, considering the structural strength of the ship body, and arranging the docking blocks at the position with strong members;
step 2, carrying out ship construction checking work to check whether the ship construction is finished, wherein the ship construction comprises the steps of installing a mud cabin sealing device, manufacturing and installing a deck hinge point device, meeting the use requirement before the left and right side half body is folded, carrying out an outer plate seam and hull tightness test, carrying out working sealing checking on a sea area, and installing a bow side pushing sealing device (sometimes), wherein the sea area comprises a sea door, a mud pipe in the mud cabin area and an overflow cylinder;
step 3, combining the content shown in fig. 2, fixing an auxiliary limiting tool 8 on the deck of the port half body 1, wherein the auxiliary limiting tool 8 can be made of high-strength I-steel, is welded with the deck of the port half body 1, and can extend to the starboard half body 2;
step 4, pier falling, namely respectively falling a left side half body 1 and a right side half body 2 onto the left side half body docking block and the right side half body docking block by using a dock gantry crane, setting the lifting distance h of the left side half body 1 to be 18-22 mm, preferably 20 mm, compared with the lifting distance h of the right side half body 2 according to the wedge height above a movable sand box, wherein the left side half body 1 is mainly subjected to bearing pier-cement sand box docking block 3 in a non-falling state, and the left side half body 1 is fallen through sand box releasing operation, so that the bearing pier has no bearing effect after the pier falling is completed;
step 5, folding by taking the left side half body 1 as a reference, firstly lowering the deck of the left side half body 1 by using a cement sand box docking block 3 to enable the bottom surface of an auxiliary limiting tool 8 on the deck of the starboard half body 2 to be attached to the upper surface of the deck of the starboard half body 2, achieving the purpose that the deck of the left side half body 1 and the deck of the starboard half body 2 are on the same horizontal plane, and then folding a sliding plate 404 located on the sliding plate docking block together with the left side half body 1 transversely by using an external hydraulic pump by using the telescopic pressure of a hydraulic cylinder in a split ship bow and tail cylinder cabin (the telescopic action of the hydraulic cylinder is the pressure generated by using an external hydraulic pump station), wherein auxiliary facilities are added to be matched with the hydraulic cylinder in the ship bow and tail cylinder cabin when the telescopic pressure of the hydraulic cylinder in the ship bow and tail cylinder cabin is smaller than the static friction force of the movement of the left side half body 1, and comprise a hand block and a hydraulic jack;
step 6, when the left side half body 1 and the right side half body 2 are moved to a close distance (namely, the first clamping sealing device 101 and the second clamping sealing device 201 are about to be contacted), the first clamping sealing device 101 of the limiting plate arranged on the outer bottom plate of the left side half body 1 is connected with the second clamping sealing device 201 of the limiting plate arranged on the outer bottom plate of the right side half body 2 to realize the folding of the left side half body 1 and the right side half body 2;
and 7, after the ship body is folded in place, considering that the structure of the ship body is partially arranged below the port side half body 1, wherein the dock is mainly a dock under a strong frame and a member and comprises a concrete dock (301), and arranging the dock is completed by adding wedge blocks on the concrete dock (301).
The static friction force in the pulling and leaning process is calculated as follows:
assuming that the total weight of the port body half 1 after construction is 1000 tons (including outfitting, pipes, equipment, etc.), the gravity in the rest state, i.e. the positive pressure, is
Fn＝1000000＊9.8N/KG＝9800000N；
The static friction force of the actual moving port half body is
F=u×fn=0.075× 9800000 = 735000N (7350000/9.8=75000 KG), where u is a sliding friction coefficient.
According to the application method of the docking block assembly for the landing of the open-body ship, the positioning of the bow and the stern of the open-body ship is controlled through precision when the dock is folded, and then the oil cylinder piston rod of the bow and the stern hydraulic oil cylinder is directly used to keep consistent with the oil cylinder, so that the application method of the docking block assembly for the landing of the open-body ship has the advantage of easy control of positioning precision in the execution process.
The application method of the dock block assembly for the falling pier and leaning of the open-body ship is used on a 3000-square open-body dredger and a 4200-square open-body trailing suction dredger which are built in a factory, wherein the related dock blocks, slideways, sliding plates, steel plates paved on the sliding track of auxiliary piers, triangular supports and the like can be used in similar projects (3000 m 3 Open type dredger with dredger barge, 4200 side drag suction type, and 1500m 3 Self-propelled split dredger). Proved by practical verification, the dock block assembly for landing and leaning of the split ship and the application method thereof can be widely popularized and used in the fields of ship manufacturing and ocean engineering.
It should be noted that, in the description of the present invention, it should be understood that the terms "center", "front", "rear", "left", "right", "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and should not be construed as limiting the scope of the present invention.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (3)
1. An application method of a dock block assembly for landing and leaning on an open-body ship is characterized in that the open-body ship comprises a port half body (1) and a starboard half body (2), the dock block assembly comprises a port half body dock block which is arranged on a dock floor corresponding to the port half body, a starboard half body dock block which is arranged on the dock floor corresponding to the starboard half body, and the starboard half body dock block comprises a plurality of dock blocks (6);
the left-side half-body dock block comprises a plurality of cement sand box dock blocks (3) and a plurality of slide plate dock blocks (4), wherein the slide plate dock blocks (4) and the cement sand box dock blocks (3) are arranged in parallel, each cement sand box dock block (3) comprises a first concrete dock block (301), a movable sand box (303), a first wedge (304) and a second wedge (305) which are sequentially arranged from bottom to top, a slope plate structure (302) is arranged in each movable sand box (303), sand is filled in each movable sand box (303) above the corresponding slope plate structure (302), the thickness of each first concrete dock block (301) is larger than that of each movable sand box (303), the thickness of each movable sand box (303) is larger than that of each first wedge (304), and the thickness of each first wedge (304) is larger than that of each second wedge (305); the width of the first concrete docking block (301) is larger than that of the movable sand box (303), and the width of the movable sand box (303) is larger than that of the first wedge wood (304); the length of the first concrete docking block (301) is larger than that of the movable sand box (303), the length of the movable sand box (303) is larger than that of the first wedge wood (304), and the length and the width of the first wedge wood (304) and the second wedge wood (305) are equal;
the slide board docking block (4) comprises a second docking block (401), a first base plate (403), a lubricating layer, a slide board (404), an adjusting pipe fitting (406) and a second base plate (407) which are sequentially arranged from bottom to top, wherein the upper surface of the second docking block (401) is leveled by cement to form a leveling layer (402), the first base plate (403) is paved on the leveling layer (402), the upper base surface of the second base plate (407) is connected with an outer plate at the bottom of the port half body (1), limit devices (405) which are perpendicular to the sliding direction of the slide board (404) are additionally arranged on two sides of the upper base plate of the first base plate (403), lubricating oil is coated on the first base plate (403) at the inner side of the limit devices (405) to form the lubricating layer, the slide board (404) is paved on the lubricating layer, the width of the second docking block (401) is larger than or equal to the width of the first base plate (403), the width of the first base plate (403) is larger than the width of the slide board (404), the width of the slide board (404) is larger than the width of the second base plate (407), and the width of the slide board (404) is larger than the width of the slide board (404) along the limit direction;
the left side half body docking block and the right side half body docking block both comprise auxiliary piers (5), the auxiliary piers (5) comprise triangular supports (9), the upper ends of the triangular supports (9) are fixedly connected with the outer plate of the left side half body, the lower ends of the triangular supports (9) are fixedly connected with a third base plate (10), steel plates (11) are paved on the dock bottom corresponding to the sliding track of the auxiliary piers in the left side half body docking block, the distance between the steel plates (11) and the tool bottom plate is 20 mm, and lubricating grease is smeared on the upper surfaces of the steel plates (11);
the application method of the docking block assembly for landing and leaning of the open-body ship comprises the following steps:
arranging a left-side half-body block and a right-side half-body block on a dock bottom according to a dock block arrangement drawing, wherein the positions of the left-side half-body block and the right-side half-body block correspond to the positions of strong members on the open-body ship;
the method comprises the steps of (1) setting a pier, carrying out ship construction checking work before the pier setting pulling work is carried out, checking whether the ship construction is finished or not, wherein the ship construction comprises the steps of installing a mud cabin sealing device, manufacturing and installing a deck hinge point device, enabling a bow tail hydraulic cylinder to meet the use requirement before a left side half body and a right side half body are folded, carrying out a plate seam and hull tightness test, carrying out sealing inspection on a sea area, wherein the sea area comprises a sea bottom door, a mud cabin area sea mud pipe and an overflow cylinder, and then setting a left side half body (1) and a right side half body (2) on a left side half body dock pier and a right side half body dock pier respectively, and the height of the bottom of the left side half body (1) is larger than that of the bottom of the right side half body (2);
the method comprises the steps of folding a starboard half body (2) serving as a reference, firstly reducing a deck of a port half body (1) by using a cement sand box docking block (3) to enable the deck of the port half body and the deck of the starboard half body (2) to be on the same horizontal plane, then folding a sliding plate (404) located on a sliding plate docking block (4) together with the port half body (1) transversely by using the telescopic pressure of a hydraulic cylinder in a split ship bow and tail cylinder cabin, and adding auxiliary facilities to be matched with the hydraulic cylinder in the ship bow and tail cylinder cabin when the telescopic pressure of the hydraulic cylinder in the ship bow and tail cylinder cabin is smaller than the static friction force of the movement of the port half body (1), wherein the auxiliary facilities comprise a chain block and a hydraulic jack;
the folding of the port half body (1) and the starboard half body (2) is realized through a first clamping sealing device (101) arranged on the limiting plate on the outer bottom plate of the port half body (1) and a second clamping sealing device (201) arranged on the limiting plate on the outer bottom plate of the starboard half body (2);
the dock blocks are arranged locally below the left side half body (1) after being folded in place, the locally arranged dock blocks comprise concrete dock blocks (301), the arrangement is completed by plugging wedge wood on the concrete dock blocks (301), auxiliary limiting tools (8) are fixed on the deck of the left side half body (1), the length of each auxiliary limiting tool (8) after the dock is fallen can extend to the upper side of the starboard half body (2), and when the deck of the left side half body (1) and the deck of the starboard half body (2) are on the same horizontal plane, the bottom surface of each auxiliary limiting tool (8) is attached to the upper surface of the deck of the starboard half body (2); the left side half body (1) is raised by 18-22 mm compared with the right side half body (2).
2. The method of using a docking block assembly for landing and landing a split vessel as defined in claim 1, wherein,
the thickness of the first concrete dock block (301) is 1000 mm, the length is 1500 mm, and the width is 500 mm; the thickness of the segmented sand box (303) is 500 mm, and the length is 900 mm; the thickness of the first wedge wood (304) is 220 mm, the thickness of the second wedge wood (305) is 100 mm, and the widths of the first wedge wood (304) and the second wedge wood (305) are both 250 mm.
3. The method of using a docking block assembly for landing and landing a split vessel as defined in claim 1, wherein,
the width of the second dock block (401) is 1000 mm, the length is 6000 mm, the thickness is 1500 mm, the thickness of the first backing plate (403) is 40 mm, the width of the sliding plate (404) is 900 mm, and the thickness is 40 mm; the distance between the outer plate at the bottom of the port semi-body (1) and the upper surface of the sliding plate (404) is 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210052533.9A CN114275118B (en) | 2022-01-17 | 2022-01-17 | Pier falling and pulling method for split ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210052533.9A CN114275118B (en) | 2022-01-17 | 2022-01-17 | Pier falling and pulling method for split ship |
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| Publication Number | Publication Date |
|---|---|
| CN114275118A CN114275118A (en) | 2022-04-05 |
| CN114275118B true CN114275118B (en) | 2023-10-13 |
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| CN115743462B (en) * | 2022-11-30 | 2024-06-11 | 中国船舶集团青岛北海造船有限公司 | Ship false rudder construction method |
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