Shallow water slide well beam installation measuring device and construction method thereof

Abstract

The application provides a shallow water area slide cross beam installation measuring device and a construction method thereof. At least one vertical rod is arranged on the track of the cross beam. The vertical rod is horizontally arranged. The lower end of the vertical rod is arranged on the base. The base is clamped on the track of the cross beam. The upper end of the vertical rod is further provided with a GPS locator. The GPS locator is provided with a prism. Compared with the traditional inverted vertical frame, the structure is more compact. The vertical rod can be conveniently installed on the cross beam without the help of lifting equipment. The installation convenience and speed are greatly improved. The construction efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of waterway engineering construction technology, and in particular to a measuring device for the installation of a shallow water slide trough beam and its construction method. Background Technology

[0002] In today's era, my country's shipbuilding technology is booming, and the slipway, as an important ship launching facility, occupies an indispensable position in the shipbuilding industry. Its emergence has greatly changed the traditional mode of ship launching, enabling ships to smoothly slide into the water from the slipway with the help of gravity and winch traction after construction, thereby avoiding the high costs and complex procedures required for dry dock construction, and significantly improving the efficiency and economic benefits of shipbuilding.

[0003] During the construction of the slide, measurement and positioning are crucial steps to ensure the accuracy and quality of the slide installation. For the water-based section, the axis measurement and positioning method has become relatively mature and widely used after long-term practice and development. This method establishes a precise axis coordinate system and uses measuring instruments to measure and locate key points of the water-based structure, which can well meet the accuracy requirements of the water-based construction.

[0004] However, the positioning of the underwater portion is more complex. While traditional inverted frame positioning methods can achieve underwater structure positioning to some extent, they face numerous severe challenges when dealing with grid beams where the slope intersects the water surface. Due to the unique position of these grid beams, with their top above the water surface and their bottom below, the use of traditional inverted frames has significant shortcomings when conducting bottom measurement and control.

[0005] Firstly, from the perspective of ease of operation, the installation and commissioning of the inverted frame requires a significant amount of manpower and time. Its structure is relatively complex, requiring precise operation by professional personnel, and the difficulty of operation is further increased in an underwater environment, which undoubtedly adds to the complexity and difficulty of construction.

[0006] Secondly, in terms of efficiency, the operation of the inverted frame is complicated, and each measurement and adjustment requires multiple steps. Moreover, underwater operations are affected by factors such as water flow and water pressure, resulting in a long measurement and adjustment cycle, which seriously affects the progress of the entire slide construction.

[0007] In summary, traditional positioning methods are insufficient to meet the actual construction needs in the installation and measurement of the lattice beams of the shallow water slide. There is an urgent need for a new, efficient, and easy-to-operate installation and measurement device and its construction method to solve these problems, so as to ensure the smooth progress of slide construction and the reliability of project quality. Summary of the Invention

[0008] The main objective of this invention is to provide a measurement device and construction method for installing a lattice beam in shallow water, which solves the problems of cumbersome operation and low construction efficiency when using inverted hanging frames in shallow water.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a shallow water area slide rail lattice beam installation and measuring device, wherein at least one upright is provided on the track of the lattice beam, the upright is horizontally set, the lower end of the upright is set on the base, the base is locked on the track of the lattice beam, and a GPS locator is also provided on the upper end of the upright, and a prism is provided on the GPS locator.

[0010] In the preferred embodiment, the base includes an upper top plate, the lower end of the upright is rotatably connected to the upper top plate, the lower part of the upper top plate is connected to the lower bottom plate through a leveling device, the lower bottom plate is provided with clamping plates, and the clamping plates form a groove that is clamped on the track.

[0011] In the preferred embodiment, the lower end of the upper top plate is provided with multiple first adjusting screws, and the lower bottom plate is provided with multiple second adjusting nuts. The first adjusting screws and the second adjusting nuts are arranged correspondingly, and the first adjusting screws and the second adjusting nuts are connected by adjusting nuts.

[0012] In the preferred embodiment, a plurality of first nuts are provided on one side of the clamping plate. The first nuts pass through the clamping plate and abut against the side of the track, so that the groove under the entire bottom plate is fixed on the track.

[0013] In the preferred embodiment, a positioning plate is provided on one side of the base. The positioning plate has a right-angle structure, with one end connected to the base and the other end of the vertical rod indicating that it is positioned against the end of the grid beam.

[0014] In the preferred embodiment, one end of the positioning plate is fixed to the lower base plate by multiple second nuts.

[0015] In the preferred embodiment, a positioning surface is also provided at the corner of the positioning plate, and the positioning surface abuts against the upper surface of the grid beam.

[0016] In the preferred embodiment, a scale is provided on the pole, and multiple bubble gauges are also provided at the top of the pole.

[0017] In the preferred embodiment, S1 is the track mounting base of the grid beam to be installed, and the inner side of the positioning plate vertical rod on one side of the base is positioned against the end face of the positioning plate at a distance from the vertical rod.

[0018] S2. Use a square to measure the perpendicularity of the upright and the bottom plate of the base. Then adjust the position of the upright according to the positioning plate. After the position is adjusted, the first nut under the base abuts against the rail, so that the entire base is fixed on the rail.

[0019] S3. Uprights and bases are installed on the tracks on both sides of the grid beam, and positioning is achieved through positioning plates;

[0020] S4. Use drones to scan and model the area of ​​the construction grid beams to obtain 3D construction drawings of the construction area. Combine the data of the grid beam installation measured by the total station with the 3D construction drawings to form drawings of the installation positions of each grid beam. Later, the lifting points of the grid beams will be located according to the drawings of the installation positions.

[0021] S5. The lifting device needs to lift the grid beam to the pre-approved installation position. The GPS locator displays the position of the grid beam. The lifting device adjusts according to the currently displayed position of the grid beam and moves the grid beam to the installation position.

[0022] S6. After the grid beam is moved to the installation position, the grid beam is lowered and contacts the support pier. The two total stations at the track axis are aligned with the axis at the top of the track. The lifting equipment slightly lifts the two lifting points at the top of the grid beam. After the top of the grid beam reaches the design position, the upper lifting points are lowered.

[0023] S6. Two total stations at the track axis are aligned with the prism at the top of the uprights at the lower position of the grid beam. After measuring the lower position of the grid beam to reach the preset position, the lower position of the grid beam is slowly lowered and the grid beam is pressed against the support pier.

[0024] S7. After the grid beam is abutted against the support pier, the construction personnel observe the bubble meter on the upright to check if the upright is vertical. Combining the layout data from the bubble meter and the total station, the lower position of the grid beam is finally adjusted. After it is adjusted to the preset position, the hoisting and installation are carried out.

[0025] S8. Display the installation position of the grid beam based on the two GPS locators on the grid beam, and compare it with the position of the 3D point map in step S4. If the offset data is kept within 2cm, it means that the grid beam has reached the preset position.

[0026] In the preferred embodiment, the specific method of step S4 is as follows:

[0027] First, a drone equipped with a high-precision 3D laser scanner is used to conduct a comprehensive scan of the area where the grid beams are being constructed. The scanner collects data along a set flight path at a certain angular velocity and linear velocity, obtaining a large amount of point cloud data within the construction area. This point cloud data includes spatial information about the terrain, existing infrastructure, and the surrounding environment.

[0028] The collected point cloud data is transmitted to professional modeling software. Through feature extraction and spatial geometry algorithms, a 3D construction drawing of the construction area is constructed. During the modeling process, the software automatically identifies and fits different geometric shapes, such as planes and curved surfaces, based on the density and distribution of the point cloud data, and constructs the corresponding topological structure.

[0029] Meanwhile, a total station (8) was used to measure the key control points for installing the grid beam (1); the total station obtained the three-dimensional coordinate data of these control points in the total station coordinate system by measuring the horizontal angle, vertical angle and distance; assuming the total station coordinate system is The coordinates of the measured control points are: ,in , The number of control points;

[0030] Then, the data obtained from the total station measurement is registered and fused with the 3D construction drawing in the same coordinate system. This step requires a coordinate transformation algorithm, assuming the coordinate system of the 3D construction drawing is... We need to find a transformation matrix. This allows the coordinates of control points measured by the total station to be transformed into the coordinate system of the 3D construction drawing; the transformation matrix... It typically includes translation, rotation, and scaling transformation parameters, which can be solved using optimization algorithms such as the least squares method;

[0031] Finally, based on the fused data, combined with the design dimensions and installation requirements of the grid beams, the coordinates of the installation positions of each grid beam were calculated, and detailed installation position drawings were drawn, including the planar position, elevation, and relative relationship information of the grid beams with the surrounding structures.

[0032] Coordinate transformation formula: Let point The coordinates in the total station coordinate system are: The coordinates in the 3D construction drawing coordinate system are: Transformation matrix for:

[0033] ;

[0034] Then we have:

[0035] ;

[0036] in, The elements of the transformation matrix can be solved by establishing a system of equations by measuring the coordinates of multiple common points in two coordinate systems. The purpose of this formula is to achieve a unified coordinate representation of total station measurement data and 3D construction drawing data, so as to facilitate subsequent data fusion and analysis.

[0037] Calculation of installation location for grid beams: based on the design spacing of the grid beams. , and offset relative to a certain reference point And the boundary coordinates of the installation area already determined in the fused coordinate system. and Calculate the installation position coordinates of the grid beam. as follows:

[0038] ;

[0039] ;

[0040] ;

[0041] Where j,k are the grid beams in and The direction number; the purpose of this formula is to accurately determine the installation position of each grid beam based on design requirements and on-site measurement data;

[0042] The specific method for step S5 is as follows:

[0043] After the lifting device is started, the grid beam is slowly lifted to a certain height. At this time, the GPS locator on the grid beam begins to receive satellite signals in real time and calculates its own position coordinates. The GPS locator uses a positioning algorithm based on the satellite navigation system. By measuring the distance between the satellite and the locator, and combining the satellite's orbital parameters and clock information, it calculates the latitude, longitude and elevation information of the locator in the WGS-84 coordinate system, and then transforms it to the local coordinate system of the construction area through coordinate transformation.

[0044] Meanwhile, the controller on the lifting device continuously reads the position data sent by the GPS locator and compares it with the coordinates of the installation position of the grid beam calculated in the preset step S4;

[0045] The coordinates of the grid beam position measured by the GPS locator are as follows: The preset installation location coordinates are ;

[0046] The offset of the grid beam in the horizontal and vertical directions is calculated based on the difference between the two values. , , ;

[0047] Based on the calculated offset, the lifting device adjusts parameters such as the boom angle, telescopic length, or lifting height through its own hydraulic or electric drive system to gradually bring the grid beam closer to the preset installation position. During the adjustment process, the position data of the GPS locator is continuously monitored and the offset is updated in real time until the position of the grid beam meets the preset accuracy requirements, at which point it is moved to the installation position.

[0048] The specific method for step S8 is as follows:

[0049] After the grid beam is installed, the position coordinate data of the two GPS locators on the grid beam are read again and recorded as follows: and ;

[0050] Based on the coordinate data from these two GPS locators, calculate the center coordinates of the actual installation location of the grid beam. The calculation formula is as follows:

[0051] ;

[0052] ;

[0053] ;

[0054] The calculated center coordinates of the actual installation location are compared with the preset position coordinates of the grid beam in the 3D point map generated in step S4, and the deviation between the two in each direction is calculated. , , ;

[0055] Determine if the deviation is within the allowable 2cm. If it meets the requirement, it indicates that the installation position of the grid beam 1 is accurate. If it exceeds the allowable range, the cause needs to be analyzed, and remeasurement and adjustment are required.

[0056] This invention provides a measuring device and construction method for installing a grid beam in shallow water slides. Compared with traditional inverted frames, its structure is lighter and more compact, allowing for easy installation on the grid beam without the need for lifting equipment, greatly improving the convenience and speed of installation, and thus effectively enhancing construction efficiency. Operation is very simple, allowing for quick leveling of the measuring rod, laying a solid foundation for subsequent measurement work. It exhibits excellent construction accuracy; the verticality of the measuring rod is significantly superior to that of divers using underwater measuring rods, ensuring better accuracy in grid beam installation. From a safety perspective, it avoids the risks of working at height associated with inverted frames, ensuring the personal safety of construction personnel. Overall, this invention is particularly well-suited to the installation needs of grid beams in shallow water, effectively solving many problems associated with traditional methods in this field, and strongly promoting the smooth progress of slide construction. Attached Figure Description

[0057] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0058] Figure 1 This is a main view structural diagram of the installation uprights of the grid beam of this invention;

[0059] Figure 2 This is a side view of the installation uprights of the grid beam of the present invention;

[0060] Figure 3 This is an overall structural diagram of the pole mounting base of the present invention;

[0061] Figure 4 This is a diagram of the pole installation structure of the present invention;

[0062] Figure 5 This is a layout structure diagram of the total station of this invention;

[0063] Figure 6 This is a top-view structural diagram of the infrared modeling area of ​​this invention;

[0064] Figure 7 This is the overall structural diagram of the grid beam construction of this invention.

[0065] In the diagram: 1. Grid beam; 2. Track; 3. Upright pole; 301. Scale; 302. Bubble meter; 4. Base; 401. Top plate; 402. Adjusting nut; 403. Bottom plate; 404. Clamping plate; 405. First nut; 406. Second nut; 5. Positioning plate; 501. Positioning surface; 6. GPS locator; 7. Prism; 8. Total station; 9. Construction platform; 10. Infrared modeling area. Detailed Implementation

[0066] Example 1

[0067] like Figure 1-7 As shown, a shallow water slide grid beam installation and measurement device is provided. At least one upright 3 is provided on the track 2 of the grid beam 1. The upright 3 is horizontally set and the lower end of the upright 3 is set on the base 4. The base 4 is locked on the track 2 of the grid beam 1. A GPS locator 6 is also provided on the upper end of the upright 3. A prism 7 is provided on the GPS locator 6.

[0068] The upright pole 3 serves as the carrier for measurement, horizontally positioned on the track 2 of the grid beam 1 and fixed in place by the base 4 at its lower end. The base 4 is secured to the track 2, with its upper top plate 401 rotatably connected to the lower end of the upright pole 3 for easy angle adjustment. A leveling device connects it to the lower base plate 403 to ensure overall stability. The clamping plates 404 of the lower base plate 403 form a groove that fits tightly against the track 2, and are secured by tightening a first nut 405 on one side against the side of the track 2. A GPS locator 6 and a prism 7 are installed at the upper end of the upright pole 3. The GPS locator 6, based on a satellite navigation system, receives satellite signals, measures the distance between itself and the satellite, and, combining satellite orbit parameters and clock information, calculates the latitude, longitude, and elevation information in the WGS-84 coordinate system. This information is then converted to the local coordinate system of the construction area, enabling real-time monitoring and positioning of the grid beam 1.

[0069] A reliable measurement benchmark is provided for the installation of the grid beam 1. The position information of the grid beam 1 can be accurately obtained through the uprights 3 and the measuring devices on them. Compared with the traditional method, its installation is convenient, eliminating the need for large lifting equipment to assist in the installation of the base 4 and uprights 3, effectively saving manpower and time costs and improving construction efficiency. With the real-time positioning function of the GPS locator 6, the position of the grid beam 1 can be dynamically adjusted during lifting and installation, ensuring installation accuracy, reducing construction errors caused by inaccurate positioning, and ensuring the smooth progress of the slide construction and the quality of the project.

[0070] In the preferred embodiment, the base 4 includes an upper top plate 401, the lower end of the upright 3 is rotatably connected to the upper top plate 401, and the lower part of the upper top plate 401 is connected to the lower base plate 403 via a leveling device. The lower base plate 403 is provided with clamping plates 404, which form a groove that clamps onto the track 2. A first nut 405 passes through the clamping plate 404 and abuts against the side of the track 2. Tightening it generates inward pressure, causing the clamping plate 404 to conform to the track 2.

[0071] In the preferred embodiment, the upper top plate 401 has multiple first adjusting screws at its lower end, and the lower bottom plate 403 has multiple second adjusting nuts. The first adjusting screws and second adjusting nuts are correspondingly arranged and connected by adjusting nuts 402. Rotating the adjusting nuts 402 allows for fine-tuning of the upper top plate 401 and the lower bottom plate 403, ensuring that the uprights 3 are parallel to the ends of the grid beam 1. The upper top plate 401 and the lower bottom plate 403 are connected by an adjustment structure consisting of the first adjusting screws, the second adjusting nuts, and the adjusting nuts 402. When the adjusting nuts 402 are rotated, due to the transmission action of the threads, the adjusting nuts 402 move along the thread direction of the first adjusting screws and the second adjusting nuts, thereby changing the relative positional relationship between the upper top plate 401 and the lower bottom plate 403. This change in relative position allows for fine-tuning of the angle of the uprights 3 fixed on the upper top plate 401, ensuring that the uprights 3 are parallel to the ends of the grid beam 1. Its principle is based on the mechanical principle of threaded transmission. By precisely controlling the rotation angle and displacement of the adjusting nut 402, the adjustment of minute angular deviations can be achieved.

[0072] In the preferred embodiment, a plurality of first nuts 405 are provided on one side of the clamping plate 404. The first nuts 405 pass through the clamping plate 404 and abut against the side of the track 2 so that the groove under the entire bottom plate 403 is fixed on the track 2.

[0073] The groove formed by the clamping plates 404 mates with the track 2 of the grid beam 1. Multiple first nuts 405 are provided on one side of the clamping plates 404, utilizing the threaded structure of the nuts. When the first nut 405 is tightened, the nut moves along its thread axis, and the axial force generated pushes the clamping plates 404 to fit tightly against the side of the track 2, increasing the friction between the clamping plates 404 and the track 2. Through mechanical compression, the groove below the lower base plate 403 is firmly fixed to the track 2, preventing displacement due to external forces during construction.

[0074] This method ensures the stable installation of the base 4 on the track 2 of the grid beam 1, guaranteeing the positional stability of the measuring device on the grid beam 1. In the shallow water area of ​​the grid beam installation environment, the device may be subject to external forces such as water flow impact and construction vibration. This fixing method can effectively resist these external forces, ensuring the continuity and accuracy of the measurement work, providing a reliable foundation for subsequent measurement and installation operations, and reducing measurement errors and construction problems caused by device displacement.

[0075] In the preferred embodiment, a positioning plate 5 is provided on one side of the base 4. The positioning plate 5 has a right-angle structure, with one end connected to the base 4 and the inner side of the vertical rod at the other end abutting against the end of the grid beam 1 for positioning. The positioning plate 5 is mainly used to position the uprights 3. When two uprights 3 are installed, the positioning plate 5 can adjust the distance between the two uprights 3 and the end of the grid beam 1 to be the same. Utilizing the right-angle structure of the positioning plate 5, one end is rigidly connected to the base 4, ensuring the fixity of the relative position. During installation, the inner side of the vertical rod at the other end of the positioning plate 5 abuts against the end of the grid beam 1, using this as a reference to determine the position of the uprights 3. When multiple uprights 3 are installed, due to the consistency of the positioning plate 5 and the relative fixation of the end of the grid beam 1, the distance between each upright 3 and the end of the grid beam 1 can be kept the same, ensuring the standardization and consistency of the installation position of the uprights 3.

[0076] This significantly improves the accuracy and uniformity of the installation position of the uprights 3, simplifying the positioning operation during installation. Compared to the case without positioning plates 5, it reduces the workload of manual measurement and adjustment, improving construction efficiency. Simultaneously, it ensures the relative positional accuracy of multiple uprights 3 on the grid beam 1, providing a stable and reliable foundation for subsequent measurement and installation work based on the uprights 3, thus contributing to improving the overall quality of the shallow water area slide grid beam installation project.

[0077] In the preferred embodiment, one end of the positioning plate 5 is fixed to the lower base plate 403 by multiple second nuts 406. A positioning surface 501 is also provided at the corner of the positioning plate 5, abutting against the upper surface of the grid beam 1. After the grid beam 1 is constructed, the positioning surface 501 ensures that the upper surface of the positioning plate 5 is horizontal and also positions the uprights 3 vertically. The fixing of one end of the positioning plate 5 to the lower base plate 403 by multiple second nuts 406 utilizes the threaded connection between the second nuts 406 and the lower base plate 403. When the second nuts 406 are tightened, the resulting axial pressure presses the positioning plate 5 firmly against the lower base plate 403, achieving a stable connection and preventing displacement or loosening of the positioning plate 5 during construction.

[0078] The positioning surface 501 at the corner of the positioning plate 5 abuts against the upper surface of the grid beam 1, based on the principle of planar contact. During the construction of the grid beam 1, the upper surface of the grid beam 1 serves as a reference plane, and the positioning surface 501 is in close contact with it, restricting the vertical displacement and rotation of the positioning plate 5, thereby ensuring the horizontal state of the upper surface of the positioning plate 5. Since the upright 3 is connected to the positioning plate 5, the vertical state of the upright 3 is indirectly positioned.

[0079] The fixing function of the second nut 406 ensures the stability of the positioning plate 5 throughout the construction process, enabling the positioning plate 5 to continuously and effectively perform its positioning function for the upright 3, thereby improving the reliability of the measuring device.

[0080] The positioning surface 501 effectively ensures the horizontality of the positioning plate 5 and the verticality of the upright 3, reduces measurement errors caused by the tilt of the positioning plate 5 or the non-verticality of the upright 3, improves the installation accuracy of the grid beam 1, and helps to improve the overall quality of the shallow water area slide grid beam installation project.

[0081] In the preferred embodiment, the upright 3 is equipped with a scale, and multiple bubble level meters 302 are also mounted on the upper end of the upright 3. The scale on the upright 3 is based on the fundamental principle of length measurement; using the upright 3 as a reference, the scale markings visually reflect the relative positional change of the grid beam 1 along the direction of the upright 3. The bubble level meters 302 utilize the property of liquids remaining horizontal under gravity; when the upright 3 is vertical, the bubble will be located at the center of the instrument. Multiple bubble level meters 302 detect the verticality of the upright 3 from different directions, ensuring measurement accuracy.

[0082] The ruler provides construction workers with a convenient measurement tool, enabling them to quickly read the relative position data of the grid beam 1 and the uprights 3. This facilitates timely adjustment of the grid beam 1's position during installation, improving construction efficiency. The bubble meter 302 can visually display the verticality of the uprights 3, allowing construction workers to check and correct it at any time, ensuring the verticality of the measurement benchmark. This, in turn, improves the installation accuracy of the grid beam 1 and reduces installation errors caused by verticality deviations.

[0083] Example 2

[0084] Further explanation in conjunction with Example 1, such as Figure 1-7 As shown in the structure, S1, the track 2 of the grid beam 1 to be installed is mounted on the base 4, and the inner side of the positioning plate 5 on one side of the base 4 abuts against the end face of the vertical rod 3 at a distance for positioning.

[0085] S2. Use a square to measure that the upright 3 is perpendicular to the bottom plate 403 of the base 4. Then adjust the position of the upright 3 according to the positioning plate 5. After the position is adjusted, the first nut 405 under the base 4 abuts against the track 2, so that the entire base 4 is fixed on the track 2.

[0086] S3, uprights 3 and bases 4 are installed on the tracks 2 on both sides of the grid beam 1, and are positioned by positioning plates 5;

[0087] S4. Use a drone to scan and model the area of ​​the construction grid beam 1 to obtain a 3D construction drawing of the construction area. Combine the data of the installation of the grid beam 1 measured by the total station with the 3D construction drawing to form drawings of the installation positions of each grid beam 1. Later, the lifting point positions of the grid beam 1 will be located according to the drawings of the installation positions.

[0088] S5. The lifting device needs to lift the grid beam 1 to the pre-approved installation position. The GPS locator 6 displays the position of the grid beam 1. The lifting device adjusts according to the currently displayed position of the grid beam 1 and moves the grid beam 1 to the installation position.

[0089] S6. After the grid beam 1 is moved to the installation position, the grid beam 1 is lowered and contacts the support pier. The two total stations 8 at the track axis are aligned with the axis at the top of the track. The lifting equipment slightly lifts the two lifting points at the top of the grid beam. After the top of the grid beam 1 reaches the design position, the upper lifting points are lowered.

[0090] S6. Two total stations 8 at the track axis are aligned with the prism 7 at the top of the upright 3 at the lower position of the grid beam 1. After measuring the lower position of the grid beam 1 to reach the preset position, the lower position of the grid beam 1 is slowly lowered and the grid beam 1 is pressed against the support pier.

[0091] S7. After the grid beam 1 is abutted against the support pier, the construction personnel observe the bubble meter 302 on the upright 3 to see if the upright 3 is in a vertical state. Combining the layout data of the bubble meter 302 and the total station 8, the lower position of the grid beam 1 is finally adjusted. After it is adjusted to the preset position, the hoisting and installation are carried out.

[0092] S8. Display the installation position of the grid beam 1 based on the two GPS locators 6 on the grid beam 1, and compare it with the position of the 3D point map in step S4. If the offset data is kept within 2cm, it means that the grid beam 1 has reached the preset position.

[0093] Example 3

[0094] Further explanation in conjunction with Example 1, such as Figure 1-7 The specific method for step S4 of the structure shown is as follows:

[0095] First, a drone equipped with a high-precision 3D laser scanner was used to conduct a comprehensive scan of the area of ​​the construction grid beam 1. The scanner collected data along a set flight path at a certain angular velocity and linear velocity, obtaining a large amount of point cloud data in the construction area. This point cloud data includes spatial information on the terrain, existing infrastructure, and surrounding environment.

[0096] The collected point cloud data is transmitted to professional modeling software. Through feature extraction and spatial geometry algorithms, a 3D construction drawing of the construction area is constructed. During the modeling process, the software automatically identifies and fits different geometric shapes, such as planes and curved surfaces, based on the density and distribution of the point cloud data, and constructs the corresponding topological structure.

[0097] Simultaneously, a total station 8 was used to measure the key control points for installing the grid beam 1; the total station obtained the three-dimensional coordinate data of these control points in the total station coordinate system by measuring horizontal angles, vertical angles, and distances; assuming the total station coordinate system is... The coordinates of the measured control points are: ,in , The number of control points;

[0098] Then, the data obtained from the total station measurement is registered and fused with the 3D construction drawing in the same coordinate system. This step requires a coordinate transformation algorithm, assuming the coordinate system of the 3D construction drawing is... We need to find a transformation matrix. This allows the coordinates of control points measured by the total station to be transformed into the coordinate system of the 3D construction drawing; the transformation matrix... It typically includes translation, rotation, and scaling transformation parameters, which can be solved using optimization algorithms such as the least squares method;

[0099] Finally, based on the fused data, combined with the design dimensions and installation requirements of the grid beam 1, the coordinates of the installation positions of each grid beam 1 were calculated, and detailed installation position drawings were drawn, including the planar position, elevation, and relative relationship information of the grid beam 1 with the surrounding structures.

[0100] Coordinate transformation formula: Let point The coordinates in the total station coordinate system are: The coordinates in the 3D construction drawing coordinate system are: Transformation matrix for:

[0101] ;

[0102] Then we have:

[0103] ;

[0104] in, The elements of the transformation matrix can be solved by establishing a system of equations by measuring the coordinates of multiple common points in two coordinate systems. The purpose of this formula is to achieve a unified coordinate representation of total station measurement data and 3D construction drawing data, so as to facilitate subsequent data fusion and analysis.

[0105] Calculation of installation position of grid beams: based on the design spacing of grid beam 1 , and offset relative to a certain reference point And the boundary coordinates of the installation area already determined in the fused coordinate system. and Calculate the installation position coordinates of the grid beam (1). as follows:

[0106] ;

[0107] ;

[0108] ;

[0109] Where j,k are the grid beams in and The direction number; the purpose of this formula is to accurately determine the installation position of each grid beam based on design requirements and on-site measurement data;

[0110] The specific method for step S5 is as follows:

[0111] After the lifting device is started, the grid beam 1 is slowly lifted to a certain height. At this time, the GPS locator 6 on the grid beam 1 begins to receive satellite signals in real time and calculates its own position coordinates. The GPS locator 6 uses a positioning algorithm based on the satellite navigation system. By measuring the distance between the satellite and the locator, and combining the satellite's orbital parameters and clock information, it calculates the latitude, longitude and elevation information of the locator in the WGS-84 coordinate system, and then transforms it to the local coordinate system of the construction area through coordinate transformation.

[0112] Meanwhile, the controller on the lifting device continuously reads the position data sent by the GPS locator 6 and compares it with the installation position coordinates of the grid beam 1 calculated in the preset step S4;

[0113] The coordinates of the position of the grid beam 1 measured by GPS locator 6 are as follows: The preset installation location coordinates are ;

[0114] The offset of the grid beam 1 in the horizontal and vertical directions is calculated based on the difference between the two values. , , ;

[0115] Based on the calculated offset, the lifting device adjusts parameters such as the angle, extension length, or lifting height of the boom through its own hydraulic or electric drive system, so that the grid beam 1 gradually approaches the preset installation position. During the adjustment process, the position data of the GPS locator 6 is continuously monitored and the offset is updated in real time until the position of the grid beam 1 meets the preset accuracy requirements, and then it is moved to the installation position.

[0116] The specific method for step S8 is as follows:

[0117] After the grid beam 1 is installed, the position coordinate data of the two GPS locators 6 on the grid beam 1 are read again and recorded as follows: and ;

[0118] Based on the coordinate data from these two GPS locators 6, calculate the center coordinates of the actual installation position of the grid beam 1. The calculation formula is as follows:

[0119] ;

[0120] ;

[0121] ;

[0122] The calculated center coordinates of the actual installation location are compared with the preset position coordinates of the grid beam (1) in the 3D point map generated in step S4, and the deviations between the two in each direction are calculated. , , ;

[0123] Determine if the deviation is within the allowable 2cm. If it meets the requirement, it indicates that the installation position of the grid beam 1 is accurate. If it exceeds the allowable range, the cause needs to be analyzed, and remeasurement and adjustment are required.

[0124] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A construction method for a measuring device for installing a lattice beam in a shallow water area, characterized by: At least one upright (3) is provided on the track (2) of the grid beam (1). The upright (3) is set horizontally, and the lower end of the upright (3) is set on the base (4). The base (4) is locked on the track (2) of the grid beam (1). A GPS locator (6) is also provided on the upper end of the upright (3). A prism (7) is provided on the GPS locator (6). Construction methods include: S1. The track (2) of the grid beam (1) to be installed is mounted on the base (4). The inner side of the positioning plate (5) on one side of the base (4) is positioned against the end face of the positioning plate (5) at a distance from the upright (3). S2. Use a square to measure the verticality of the upright (3) and the bottom plate (403) of the base (4). Then adjust the position of the upright (3) according to the positioning plate (5). After the position is adjusted, the first nut (405) under the base (4) abuts against the track (2), so that the entire base (4) is fixed on the track (2). S3, uprights (3) and bases (4) are installed on the tracks (2) on both sides of the grid beam (1), and are positioned by positioning plates (5); S4. Use drones to scan and model the area of ​​the construction grid beam (1) to obtain a 3D construction drawing of the construction area. Combine the data of the installation grid beam (1) measured by the total station (8) with the 3D construction drawing to form drawings of the installation positions of each grid beam (1). Later, locate the lifting point position of the grid beam (1) according to the drawings of the installation positions. S5. The lifting device needs to lift the grid beam (1) to the pre-approved installation position. The GPS locator (6) displays the position of the grid beam (1). The lifting device adjusts according to the currently displayed position of the grid beam (1) and moves the grid beam (1) to the installation position. S6. After the grid beam (1) is moved to the installation position, the grid beam (1) begins to be lowered and contacts the support pier. The two total stations (8) at the track axis are aligned with the axis at the top of the track. The lifting equipment slightly lifts the two lifting points at the top of the grid beam. After the top of the grid beam (1) reaches the design position, the upper lifting points are lowered. S6. Two total stations (8) at the track axis are aligned with the prism (7) at the top of the pole (3) at the lower position of the grid beam (1). After measuring the lower position of the grid beam (1) to the preset position, the lower position of the grid beam (1) is slowly lowered and the grid beam (1) is pressed against the support pier. S7. After the grid beam (1) is placed against the support pier, the construction personnel observe the bubble meter (302) on the upright (3) to see if the upright (3) is vertical. Combine the layout data of the bubble meter (302) and the total station (8) to finally adjust the lower position of the grid beam (1). After adjusting to the preset position, the hoisting and installation work is carried out. S8. Display the installation position of the grid beam (1) based on the two GPS locators (6) on the grid beam (1) and compare it with the position of the 3D point map in step S4. If the offset data is kept within 2cm, it can be said that the grid beam (1) has reached the preset position.

2. The construction method for a shallow water area slide rail grid beam installation and measuring device according to claim 1, characterized in that: The base (4) includes an upper top plate (401), the lower end of the upright (3) is rotatably connected to the upper top plate (401), the lower part of the upper top plate (401) is connected to the lower bottom plate (403) through a leveling device, the lower bottom plate (403) is provided with a clamping plate (404), and the clamping plate (404) forms a groove that is clamped on the track (2).

3. The construction method for a shallow water area slide rail grid beam installation and measuring device according to claim 2, characterized in that: The upper top plate (401) is provided with multiple first adjusting screws at its lower end, and the lower bottom plate (403) is provided with multiple second adjusting nuts. The first adjusting screws and the second adjusting nuts are set in correspondence, and the first adjusting screws and the second adjusting nuts are connected by adjusting nuts (402).

4. The construction method for a shallow water area slide rail grid beam installation and measuring device according to claim 2, characterized in that: A plurality of first nuts (405) are provided on one side of the clamping plate (404). The first nuts (405) pass through the clamping plate (404) and abut against the side of the track (2) so that the groove under the entire bottom plate (403) is fixed on the track (2).

5. The construction method for a shallow water area slide rail grid beam installation and measuring device according to claim 2, characterized in that: A positioning plate (5) is provided on one side of the base (4). The positioning plate (5) has a right-angle structure. One end of the positioning plate (5) is connected to the base (4), and the other end of the vertical rod is positioned against the end of the grid beam (1).

6. The construction method for a shallow water area slide rail grid beam installation and measuring device according to claim 5, characterized in that: One end of the positioning plate (5) is fixed to the lower base plate (403) by multiple second nuts (406).

7. The construction method for a shallow water area slide rail grid beam installation and measuring device according to claim 5, characterized in that: The corner of the positioning plate (5) is also provided with a positioning surface (501), which abuts against the upper surface of the grid beam (1).

8. The construction method for a shallow water area slide rail grid beam installation and measuring device according to claim 1, characterized in that: A scale is provided on the pole (3), and multiple bubble meters (302) are also provided at the upper end of the pole (3).

9. The construction method for a shallow water area slide rail grid beam installation and measuring device according to claim 1, characterized in that: The specific method for step S4 is as follows: First, a high-precision 3D laser scanner equipped with a drone is used to conduct a comprehensive scan of the area of ​​the construction grid beam (1). The scanner collects data on the set flight path at a certain angular velocity and linear velocity to obtain a large amount of point cloud data in the construction area. This point cloud data includes spatial information of the terrain, existing basic structure and surrounding environment. The collected point cloud data is transmitted to professional modeling software. Through feature extraction and spatial geometry algorithms, a 3D construction drawing of the construction area is constructed. During the modeling process, the software automatically identifies and fits different geometric shapes based on the density and distribution of the point cloud data. The geometric shapes can be planes or curved surfaces, and the corresponding topological structures are constructed. Meanwhile, a total station (8) was used to measure the key control points for installing the grid beam (1); the total station obtained the three-dimensional coordinate data of these control points in the total station coordinate system by measuring the horizontal angle, vertical angle and distance; assuming the total station coordinate system is The coordinates of the measured control points are: ,in , The number of control points; Then, the data obtained from the total station measurement is registered and fused with the 3D construction drawing in the same coordinate system. This step requires a coordinate transformation algorithm, assuming the coordinate system of the 3D construction drawing is... We need to find a transformation matrix. This allows the coordinates of control points measured by the total station to be transformed into the coordinate system of the 3D construction drawing; the transformation matrix... It typically includes translation, rotation, and scaling transformation parameters, which can be solved using optimization algorithms such as the least squares method; Finally, based on the fused data, combined with the design dimensions and installation requirements of the grid beam (1), the installation position coordinates of each grid beam (1) were calculated, and detailed installation position drawings were drawn, including the planar position, elevation and relative relationship information of the grid beam (1) with the surrounding structure. Coordinate transformation formula: Let point The coordinates in the total station coordinate system are: The coordinates in the 3D construction drawing coordinate system are: Transformation matrix for: ； Then we have: ； in, The elements of the transformation matrix can be solved by establishing a system of equations by measuring the coordinates of multiple common points in two coordinate systems. The purpose of this formula is to achieve a unified coordinate representation of total station measurement data and 3D construction drawing data, so as to facilitate subsequent data fusion and analysis. Calculation of installation position of grid beam: Based on the design spacing of grid beam (1) , and offset relative to a certain reference point And the boundary coordinates of the installation area already determined in the fused coordinate system. and Calculate the installation position coordinates of the grid beam (1). as follows: ； ； ； Where j,k are the grid beams in and The direction number; the purpose of this formula is to accurately determine the installation position of each grid beam based on design requirements and on-site measurement data; The specific method for step S5 is as follows: After the lifting device is started, the grid beam (1) is slowly lifted to a certain height. At this time, the GPS locator (6) on the grid beam (1) begins to receive satellite signals in real time and calculates its own position coordinates. The GPS locator (6) adopts a positioning algorithm based on the satellite navigation system. By measuring the distance between the satellite and the locator, and combining the satellite's orbital parameters and clock information, it calculates the latitude, longitude and elevation information of the locator in the WGS-84 coordinate system, and then transforms it to the local coordinate system of the construction area through coordinate transformation. Meanwhile, the controller on the lifting device continuously reads the location data sent by the GPS locator (6) and compares it with the installation position coordinates of the grid beam (1) calculated in the preset step S4; The coordinates of the position of the grid beam (1) measured by the GPS locator (6) are as follows: The preset installation location coordinates are ; The offset of the grid beam (1) in the horizontal and vertical directions is calculated based on the difference between the two values. , , ; The lifting device adjusts the angle, extension length or lifting height parameters of the boom through its own hydraulic or electric drive system based on the calculated offset, so that the grid beam (1) gradually approaches the preset installation position; during the adjustment process, the position data of the GPS locator (6) is continuously monitored and the offset is updated in real time until the position of the grid beam (1) meets the preset accuracy requirements and is moved to the installation position. The specific method for step S8 is as follows: After the grid beam (1) is installed, the position coordinate data of the two GPS locators (6) on the grid beam (1) are read again and recorded as follows: and ; Based on the coordinate data of the two GPS locators (6), calculate the center coordinates of the actual installation position of the grid beam (1). The calculation formula is as follows: ； ； ； The calculated center coordinates of the actual installation location are compared with the preset position coordinates of the grid beam (1) in the 3D point map generated in step S4, and the deviations between the two in each direction are calculated. , , ; Determine whether the deviation is within the allowable 2cm. If it meets the requirements, it means that the installation position of the grid beam (1) is accurate. If it exceeds the allowable range, the cause needs to be analyzed and remeasured and adjusted.

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