CN115303442A - Positioning method for ship bow part segmented construction - Google Patents
Positioning method for ship bow part segmented construction Download PDFInfo
- Publication number
- CN115303442A CN115303442A CN202211025873.9A CN202211025873A CN115303442A CN 115303442 A CN115303442 A CN 115303442A CN 202211025873 A CN202211025873 A CN 202211025873A CN 115303442 A CN115303442 A CN 115303442A
- Authority
- CN
- China
- Prior art keywords
- deck
- line
- points
- distance
- anchor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
Abstract
The invention provides a positioning method for ship bow subsection construction, which is used for establishing a precision three-dimensional coordinate system for key points of anchor system equipment in a production and construction process flow of a ship, particularly a liquefied gas ship bow subsection, so that the positioning and installation precision control of parts such as a port subsection and a starboard subsection and an anchor winch base, a chain activating device, an anchor winch rope drum, an anchor winch chain wheel and the like is realized. The production is delayed due to the fact that a large amount of cutting and repairing are generated in the original production process, the new process technology can be changed into the new process technology, the phenomenon of repair and cutting is not generated, the production efficiency is improved, and the dock period is shortened.
Description
Technical Field
The invention relates to the field of ship construction, in particular to a positioning method for ship bow section construction.
Background
In the existing ship building process, when a liquefied gas ship bow is built in sections, a bow main section is formed by a plurality of sections at the upper part, the lower part, the left part and the right part in the total assembly stage, and after a main ship body is formed in the docking and carrying stage of the large bow main section, anchor equipment and other production process flows are installed, so that the technical scheme of the ship building process is finally completed.
The method mainly shows that precision control is lacked in the process of section construction according to construction drawing operation, and comprises marking reverse refuting of a central line of an anchor winch and a activating chain device, marking reverse refuting of a central line of an axle of the anchor winch and precision control during reverse top reinforcement of main deck internal structure installation, dislocation of reverse top reinforcement positions is caused by positioning precision deviation of each section total assembly stage, the dislocation of anchor system equipment and reverse top reinforcement is increased by precision deviation generated by hoisting a large main section of a bow portion to a main hull, the anchor system equipment needs to be subjected to repair and welding operation due to large dislocation of the anchor system equipment under the condition that the main deck is provided with paint scraping reverse top reinforcement position precision, and the risk of construction difficulty is increased by factors such as operation personnel for climbing operation, shielding of a large number of scaffolds, size data control and the like. In addition, although the installation of anti-top strengthening rib is drawn a line and is installed according to drawing technical requirement, nevertheless because the structure runs through the wide and narrow and small in space of coverage, be unfavorable for getting the accuracy nature of strengthening rib installation. The whole production and construction process shows that factors such as ascending height, narrow space, safety risk promotion of operation, waste of material and labor cost, low productivity efficiency and the like cannot effectively meet the trend of rapid development of ship construction.
Therefore, a method is needed to solve the positioning problem during the construction of the ship bow section, so as to realize the precision control during the construction through the precise positioning.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, the present invention provides a positioning method for constructing a ship bow section, which is used for solving the positioning problem during the construction of the bow section in the prior art.
To achieve the above and other related objects, the present invention provides a positioning method for a ship bow segment building, comprising the steps of:
the fore-aft direction of the ship is taken as an X axis, the direction vertical to the fore-aft direction on the horizontal plane is taken as a Y axis, and the direction vertical to the horizontal plane is taken as a Z axis; wherein X =0 at the stern, Y =0 at the center line of the main deck, and Z =0 at the base line of the main hull;
taking three vertexes of a deck on one side of the bow part as K, J, M, and calculating coordinate values of three points K, J, M, wherein a connecting line of two points K, J is a rib position line parallel to the Y-axis direction, and a connecting line of two points K, M is parallel to the X-axis; K. j, M coordinate X values of three points are calculated by rib position lines, where X = the number of rib positions X the rib pitch of the rib position line; K. j, M coordinate Y values of three points are distance values from a deck central line; K. j, M coordinate Z values of three points are obtained by the distance from a main ship body base line in the vertical direction, and a bow single-side deck comprises a bow left deck and a bow right deck which are symmetrical to each other;
determining the relative horizontal distance between the center line of the anchor winch activating device and the edge of the single side deck of the stem part to form an intersection point Q, G and a straight line KJ and a straight line KM according to construction drawing so as to obtain coordinate values of X, Y of the Q, G; because the relative height of the deck is gradually reduced from the central line to the outboard, the relative vertical distance between Q, G two points and the central line of the main deck is obtained according to the relative distance between Q, G and the central line of the main deck and the relative horizontal distance between Q, G and the central line of the main deck by combining the pythagorean theorem, and then the coordinate value of Z of Q, G two points is obtained by combining the coordinate value of the central line of the main deck.
Preferably, the method further comprises the following steps:
an intersection point T, I is formed by the center line of the anchor chain pipe and the edge of the bow single-side deck, an intersection point U, Z is formed by the center line of the rope drum of the anchor winch and the edge of the bow single-side deck, and the relative horizontal distance between a distance straight line KJ and a distance straight line KM of T, I, U, Z is determined according to construction drawing paper, so that the coordinate value of X, Y of T, I, U, Z is obtained; because the relative height of the deck is gradually reduced from the center line to the outboard, the relative vertical distance between two points of T, I, U, Z and the center line of the main deck is obtained according to the relative distance between T, I, U, Z and the center line of the main deck and the relative horizontal distance between T, I, U, Z and the center line of the main deck by combining the pythagorean theorem, and then the coordinate value of Z of the two points Q, G is obtained by combining the coordinate value of Z of the center line of the main deck.
Preferably, the method further comprises the following steps:
ribbed plate frames, bulkheads and outer plate structures are arranged on the bow left deck and the bow right deck respectively to form a port section and a starboard section respectively, the port section and the starboard section are spliced, wherein the starboard section is provided with a reference point A, F positioned on the central line of the main deck, a vertical plane where A, F is positioned is intersected with the starboard section to form another two reference points C, N, n mutually symmetrical monitoring points are selected from the port section and the starboard section respectively, and the relative distances from the reference points to the symmetrical monitoring points of the port section and the starboard section are equal.
Preferably, a connecting line of the intersection point Q, G intersects a connecting line of the intersection point T, I at a point X0, and a connecting line of the intersection point Q, G intersects a connecting line of the intersection point U, Z at a point Y0; creating a positioning point where the anchor winch base and the chain activator are installed, wherein the X value of the positioning point = the distance between the positioning point and the adjacent rib bit line + the number of rib bits of the adjacent rib bit line X the rib distance, and the Y value of the positioning point = the distance between the positioning point and the deck center line.
Preferably, the Z value of the anchor point is obtained by:
the main deck is in an inclined state relative to the horizontal plane and has a throwing value ps = h 0/b, the horizontal distance between the center line of the main deck and the beam of the main deck is measured for the Z value of any point of the deck, the vertical distance h1 of the point relative to the horizontal plane where the edge of the main deck is located is obtained by combining the throwing value ps through the similar triangle principle, and then the coordinate of the Z value = h-h0+ h1 is obtained by combining the coordinate Z value h of the center line of the main deck.
Preferably, the method further comprises the following steps:
according to construction drawings, knowing that the coordinate Z value of the center line of the main deck is h, the closest distance between the horizontal plane of the anchor and mooring machine base and the upper surface of the main deck is h20, the distance between the center of the anchor and mooring machine rope drum and the horizontal plane of the anchor and mooring machine base is h22, the height between the anchor and mooring machine chain wheel rotating shaft and the center of the anchor and mooring machine rope drum is h23, the coordinate Z value of the anchor and mooring machine base horizontal plane is h-h0+ h30+ delta + h20, the coordinate Z value of the anchor and mooring machine rope drum center is h-h0+ h30+ delta + h20+ h22, and the coordinate Z value of the anchor and mooring machine chain wheel rotating shaft is h-h0+ h30+ delta + h20+ h22+ h23; wherein h30 is the vertical distance from the intersection point of the vertical line where h20 is located and the lower surface of the main deck to the central line of the main deck, delta is the thickness of the main deck plate, and h0 is the arch height of the main deck beam.
The present invention provides a positioning method for ship bow segment construction, which is characterized in that a precision three-dimensional coordinate system is created in the production and construction process flow of a ship, particularly a liquefied gas ship bow segment, and three-dimensional coordinates are created for key points of an anchor system device, so that the positioning method is used for splicing a port segment and a starboard segment, and controlling the precision of positioning and installation of components such as an anchor winch base, a activating chain device, an anchor winch rope drum, an anchor winch chain wheel, etc., when in installation, the total station is used for collecting and measuring real-time coordinates of key point positions of the anchor system device, analyzing whether the real-time coordinate values meet requirements, and further making corresponding correction and adjustment according to deviation, so that the precision of the ship bow segment installation is more precise. The method has the advantages that the production is delayed due to the fact that a large amount of cutting and repairing are generated in the original production process, the new process technology can be changed into the method which does not generate the phenomenon of repairing and cutting, the production efficiency is improved, the dock period is shortened, and meanwhile, the innovative technical innovation of a company is highlighted in the aspect of the construction process technology of a high-attached liquefied gas carrier or an ultra-large container ship.
Drawings
Fig. 1 shows a schematic structural view of a single-sided deck of the bow of the invention.
Fig. 2 shows a schematic illustration of the splicing of port and starboard sections.
Fig. 3 shows a schematic diagram of the calculation of the coordinate Z value of the point height.
Fig. 4 is a schematic diagram of a top view of creating the anchor base and the activating machine.
FIG. 5 shows the selection of the anchor point of the anchor base and the activating device.
Fig. 6 shows a schematic diagram of coordinate calculation of the installation height of the anchor and mooring machine.
Fig. 7 shows a schematic structural view of the anchor windlass.
Description of the element reference numerals
10. Jig frame
40. Shelving tool
50. Main deck
60. Centerline of winch activating device
70. Anchor chain pipe hole
80. Chain activating device
90. Anchor windlass base
100. Rope drum central line of anchor and mooring machine
110. Center line of anchor chain pipe
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
As in the detailed description of the embodiments of the present invention, the cross-sectional views illustrating the device structures are not partially enlarged in general scale for convenience of illustration, and the schematic views are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
For convenience in description, spatial relational terms such as "below," "beneath," "below," "under," "over," "upper," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that these terms of spatial relationship are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the figures. Further, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present. As used herein, "between … …" is meant to include both endpoints.
In the context of this application, a structure described as having a first feature "on" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed in between the first and second features, such that the first and second features may not be in direct contact.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of each component in actual implementation may be changed freely, and the layout of the components may be more complicated.
As shown in FIG. 1, the invention provides a positioning method for ship bow section construction, which comprises the following steps:
s1: the fore-aft direction of the ship is taken as an X axis, the direction vertical to the fore-aft direction on the horizontal plane is taken as a Y axis, and the direction vertical to the horizontal plane is taken as a Z axis. Wherein, X =0 at the stern, Y =0 at the center line of the main deck, and Z =0 at the base line of the main hull.
As shown in fig. 1, three vertexes of a deck on one side of the bow part are K, J, M, and coordinate values of three points K, J, M are calculated, wherein a connecting line of the two points K, J is a rib position line parallel to the Y-axis direction, and a connecting line of the two points K, M is parallel to the X-axis; K. j, M coordinate X values of three points are calculated by rib position lines, where X = the number of rib positions X the rib pitch of the rib position line; K. j, M, the coordinate Y values of three points are distance values from the center line of the deck; K. j, M coordinate Z values of three points are obtained by the distance from a main ship body base line in the vertical direction, and a bow single-side deck comprises a bow left deck and a bow right deck which are symmetrical to each other;
determining the relative horizontal distance between the intersection point Q, G and the straight line KJ and the straight line KM formed by the center line of the anchor winch activator and the edge of the single-side deck of the bow according to construction drawing so as to obtain the coordinate value of X, Y of the Q, G two points; because the relative height of the deck is gradually reduced from the central line to the outboard, the relative vertical distance between Q, G two points and the central line of the main deck is obtained according to the relative distance between Q, G and the central line of the main deck and the relative horizontal distance between Q, G and the central line of the main deck by combining the pythagorean theorem, and then the coordinate value of Z of Q, G two points is obtained by combining the coordinate value of the central line of the main deck.
The center line of the anchor chain pipe and the edge of the bow single-side deck form an intersection point T, I, the center line of the anchor windlass rope drum and the edge of the bow single-side deck form an intersection point U, Z, and the coordinate value of T, I, U, Z is obtained according to the method. Wherein the anchor winch activator centerline is used for positioning and mounting the anchor winch activator; the center line of the anchor and mooring machine rope drum is used for positioning and mounting the anchor and mooring machine rope drum, and the center line of the anchor chain pipe is used for positioning and mounting the anchor chain pipe.
Specifically, the coordinate value of X, Y of T, I, U, Z is obtained by determining the relative horizontal distance between the distance straight line KJ and the straight line KM of T, I, U, Z according to the construction drawing; because the relative height of the deck is gradually reduced from the center line to the outboard, the relative vertical distance between two points of T, I, U, Z and the center line of the main deck is obtained according to the relative distance between T, I, U, Z and the center line of the main deck and the relative horizontal distance between T, I, U, Z and the center line of the main deck by combining the pythagorean theorem, and then the coordinate value of Z of the two points Q, G is obtained by combining the coordinate value of Z of the center line of the main deck. Further, the straight lines QG, TI, UZ may be used as references for mounting the reverse roof reinforcement structure.
Rib plate frames, bulkheads and outer plate structures are arranged on the bow portion left deck and the bow portion right deck respectively to form a port section and a starboard section, the port section and the starboard section are spliced, as shown in fig. 2, the starboard section is provided with a reference point A, F located on the central line of the main deck, a vertical plane where A, F is located is intersected with the starboard section to form another two reference points C, N, n monitoring points B, J, D, G, M, O, K, Q which are symmetrical to each other are selected from the port section and the starboard section respectively, the relative distances between the symmetrical monitoring points of the port section and the starboard section and the reference point A, F, C, N are equal, the installation accuracy is controlled, and the coordinates of the monitoring points are obtained through the two-point coordinate positioning method similar to Q, G.
As shown in FIG. 4, the line connecting the intersection points Q, G intersects the line connecting the intersection point T, I at point X0, and the line connecting the intersection point Q, G intersects the line connecting the intersection point U, Z at point Y0. Creating a positioning point where the anchor base and the chain activator are installed, an X value of the positioning point = a distance from a neighboring rib bit line + a number of rib bits of the neighboring rib bit line × a rib pitch, a Y value of the positioning point = a distance from the positioning point to a splint center line, a Z value of the positioning point being obtained by:
as shown in fig. 3, the main deck is inclined relative to the horizontal plane, and has a throw value ps = h 0/b (width) of the arch height of the beam of the main deck/the half width of the main deck, and for the Z value of any point of the deck, the vertical distance h1 of the point relative to the horizontal plane of the edge of the main deck is obtained by measuring the horizontal distance between the point and the center line of the main deck and combining the throw value ps, and then the Z value coordinate = h-h0+ h1 is obtained by combining the coordinate Z value h of the center line of the main deck.
Specifically, the positioning points of the anchor and mooring machine base are points e, f, k, l, m, n, o, p, q, r, s and t; the anchor point of the chain activator is g, i, j, u.
According to construction drawings, the coordinate Z value of the center line of the main deck is known to be h, the closest distance between the horizontal plane of the anchor and mooring machine base and the upper surface of the main deck is known to be h20, the distance between the center of the rope drum of the anchor and mooring machine and the horizontal plane of the anchor and mooring machine base is known to be h22, the height between the rotating shaft of the anchor and mooring machine chain wheel and the center of the anchor and mooring machine rope drum is known to be h23, the coordinate Z value of the horizontal plane of the anchor and mooring machine base is known to be h-h0+ h30+ delta + h20, the coordinate Z value of the center of the anchor and mooring machine rope drum is known to be h-h0+ h30+ delta + h20+ h22+ h 23. h30 is the vertical distance from the intersection point of the vertical line where h20 is located and the lower surface of the main deck to the central line of the main deck, delta is the thickness of the main deck, and h0 is the beam arch height of the main deck.
Specifically, three points of the chain wheel rotating shaft of the anchor and mooring machine are selected as d, d1 and d2; selecting two points at the center of the rope drum of the anchor and mooring machine as e and f; three points of the chain activator rotating shaft are selected as a, b, and c. So that the positioning accuracy control is realized through the coordinates of the points.
In summary, the present invention provides a positioning method for ship bow segment construction, which applies a created precision three-dimensional coordinate system to ship bow segments, especially liquefied gas ship bow segments, in a production and construction process flow, and establishes three-dimensional coordinates for key points of an anchor system device, so as to be used for port segment and starboard segment splicing, and for precision control of positioning and installation of components such as an anchor winch base, a activating chain device, an anchor winch rope drum, an anchor winch chain wheel, etc., during installation, a total station is used for collecting and measuring real-time coordinates of key points of the anchor system device, analyzing whether the real-time coordinates meet requirements, and further making corresponding correction and adjustment according to deviation, so as to make the precision of the bow segment installation more precise. The method has the advantages that the production is delayed due to the fact that a large amount of cutting and repairing are generated in the original production process, the new process technology can be changed into the method which does not generate the phenomenon of repairing and cutting, the production efficiency is improved, the dock period is shortened, and meanwhile, the innovative technical innovation of a company is highlighted in the aspect of the construction process technology of a high-attached liquefied gas carrier or an ultra-large container ship.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A positioning method for ship bow section construction is characterized by comprising the following steps:
the fore-aft direction of the ship is taken as an X axis, the direction vertical to the fore-aft direction on the horizontal plane is taken as a Y axis, and the direction vertical to the horizontal plane is taken as a Z axis; wherein X =0 at the stern, Y =0 at the center line of the main deck, and Z =0 at the base line of the main hull;
taking three vertexes of a deck on one side of the bow part as K, J, M, and calculating coordinate values of three points K, J, M, wherein a connecting line of two points K, J is a rib position line parallel to the Y-axis direction, and a connecting line of two points K, M is parallel to the X-axis; K. j, M coordinate X values of three points are calculated by rib position lines, where X = the number of rib positions X the rib pitch of the rib position line; K. j, M, the coordinate Y values of three points are distance values from the center line of the deck; K. j, M coordinate Z values of three points are obtained by the distance from a main ship body base line in the vertical direction, and a bow single-side deck comprises a bow left deck and a bow right deck which are symmetrical to each other;
determining the relative horizontal distance between the intersection point Q, G and the straight line KJ and the straight line KM formed by the center line of the anchor winch activator and the edge of the single-side deck of the bow according to construction drawing so as to obtain the coordinate value of X, Y of the Q, G two points; because the relative height of the deck is gradually reduced from the central line to the outboard, the relative vertical distance between the two points Q, G and the central line of the main deck is obtained according to the relative distance between the two points Q, G and the central line of the main deck and the relative horizontal distance between the two points Q, G and the central line of the main deck by combining the pythagorean theorem, and then the coordinate value of Z of the two points Q, G is obtained by combining the coordinate Z value of the central line of the main deck.
2. The positioning method according to claim 1, further comprising the steps of:
an intersection point T, I is formed by the center line of the anchor chain pipe and the edge of the bow single-side deck, an intersection point U, Z is formed by the center line of the rope drum of the anchor winch and the edge of the bow single-side deck, and the relative horizontal distance between a distance straight line KJ and a distance straight line KM of T, I, U, Z is determined according to construction drawing, so that the coordinate value of X, Y of T, I, U, Z is obtained; because the relative height of the deck is gradually reduced from the center line to the outboard, the relative vertical distance between two points of T, I, U, Z and the center line of the main deck is obtained according to the relative distance between T, I, U, Z and the center line of the main deck and the relative horizontal distance between T, I, U, Z and the center line of the main deck by combining the pythagorean theorem, and then the coordinate value of Z of the two points Q, G is obtained by combining the coordinate value of Z of the center line of the main deck.
3. The positioning method according to claim 1, further comprising the steps of:
rib plate frames, bulkheads and outer plate structures are arranged on the bow portion left deck and the bow portion right deck respectively to form a port section and a starboard section respectively, the port section and the starboard section are spliced, the starboard section is provided with a reference point A, F positioned on the central line of the main deck, a vertical plane where A, F is located is intersected with the starboard section to form another two reference points C, N, n symmetrical monitoring points are selected from the port section and the starboard section respectively, and the relative distances between the reference points and the symmetrical monitoring points of the port section and the starboard section are equal.
4. The positioning method according to claim 1, characterized in that: a connecting line of the intersection point Q, G intersects a connecting line of the intersection point T, I at a point X0, and a connecting line of the intersection point Q, G intersects a connecting line of the intersection point U, Z at a point Y0; creating a positioning point where the anchor winch base and the chain activator are installed, wherein the X value of the positioning point = the distance between the positioning point and the adjacent rib bit line + the number of rib bits of the adjacent rib bit line X the rib distance, and the Y value of the positioning point = the distance between the positioning point and the deck center line.
5. The positioning method according to claim 4, characterized in that the Z-value of the positioning point is obtained by:
the main deck is in an inclined state relative to the horizontal plane and has a throwing value ps = h 0/b, the horizontal distance between the center line of the main deck and the beam of the main deck is measured for the Z value of any point of the deck, the vertical distance h1 of the point relative to the horizontal plane where the edge of the main deck is located is obtained by combining the throwing value ps through the similar triangle principle, and then the coordinate of the Z value = h-h0+ h1 is obtained by combining the coordinate Z value h of the center line of the main deck.
6. The positioning method according to claim 1, further comprising the steps of:
according to construction drawings, knowing that the coordinate Z value of the center line of the main deck is h, the closest distance between the horizontal plane of the anchor and mooring machine base and the upper surface of the main deck is h20, the distance between the center of the anchor and mooring machine rope drum and the horizontal plane of the anchor and mooring machine base is h22, the height between the anchor and mooring machine chain wheel rotating shaft and the center of the anchor and mooring machine rope drum is h23, the coordinate Z value of the anchor and mooring machine base horizontal plane is h-h0+ h30+ delta + h20, the coordinate Z value of the anchor and mooring machine rope drum center is h-h0+ h30+ delta + h20+ h22, and the coordinate Z value of the anchor and mooring machine chain wheel rotating shaft is h-h0+ h30+ delta + h20+ h22+ h23; and h30 is the vertical distance from the intersection point of the vertical line where h20 is located and the lower surface of the main deck to the central line of the main deck, delta is the thickness of the main deck plate, and h0 is the beam arch height of the main deck plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211025873.9A CN115303442A (en) | 2022-08-25 | 2022-08-25 | Positioning method for ship bow part segmented construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211025873.9A CN115303442A (en) | 2022-08-25 | 2022-08-25 | Positioning method for ship bow part segmented construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115303442A true CN115303442A (en) | 2022-11-08 |
Family
ID=83865290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211025873.9A Pending CN115303442A (en) | 2022-08-25 | 2022-08-25 | Positioning method for ship bow part segmented construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115303442A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117271946A (en) * | 2023-11-22 | 2023-12-22 | 中交天津航道局有限公司 | Positioning method for lifting of cutter suction dredger steel pile |
-
2022
- 2022-08-25 CN CN202211025873.9A patent/CN115303442A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117271946A (en) * | 2023-11-22 | 2023-12-22 | 中交天津航道局有限公司 | Positioning method for lifting of cutter suction dredger steel pile |
| CN117271946B (en) * | 2023-11-22 | 2024-04-02 | 中交天津航道局有限公司 | Positioning method for lifting of cutter suction dredger steel pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111532379B (en) | Ship anchor platform structure and processing method thereof | |
| CN107498269B (en) | A kind of large-scale ship reception chamber manufacturing method suitable for dry type ship compartment room | |
| CN102167140B (en) | Method for measuring continuously-variable load precision of large-scale floating dock in floating state | |
| CN115303442A (en) | Positioning method for ship bow part segmented construction | |
| CN110182303B (en) | General assembly method of rudder horn | |
| WO2013071668A1 (en) | Large-size floating state manufacturing method for marine engineering equipment | |
| CN112407183A (en) | Lofting design method for hawse pipe and anchor platform | |
| CN108103938A (en) | A kind of double deck module solid trial assembly method of large steel girder | |
| CN105383642A (en) | Vertical guide rail mounting and welding method | |
| CN109079437A (en) | Large size liquefied gas storage multilayer limb end socket arrangement and method for construction peculiar to vessel | |
| CN102745308B (en) | Method for carrying bulk freighter body stern part assembly | |
| CN110937079A (en) | Double-layer bottom box position precision control method for large container ship | |
| CN104775612A (en) | Three-dimensional distorted rotating inclined reinforced concrete frame structure template and construction method thereof | |
| CN110723263A (en) | Ship rudder blade refitting process | |
| CN115162182A (en) | Cantilever type steel box girder high-precision cable hoisting construction method | |
| CN203066095U (en) | Assembled single-wall steel hanging box | |
| CN110615064B (en) | Equipment installation point positioning method of saturated diving system | |
| CN102312436A (en) | Steel pipe pile sinking construction technology | |
| CN110789684A (en) | Method for assembling large deck machinery body base | |
| CN110877681A (en) | Large-span deck flatness control process | |
| CN211281408U (en) | A assistance-localization real-time frock that is used for different positions of engineering ship to fall mound | |
| CN110979595B (en) | Sea damage ship repairing method | |
| CN111976916A (en) | Full-rotation telescopic push mounting process for engineering ship | |
| CN115556893A (en) | Building method of ship bow section | |
| CN114455026A (en) | Ship body section slipway large folding method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |