Pipeline assembly construction method of river-crossing corridor

Abstract

The invention relates to a river-crossing corridor pipeline assembly construction method which comprises the following steps: providing a scanning robot, scanning the structure of a river-crossing corridor through the scanning robot, and drawing a river-crossing corridor structure model according to the scanning result of the scanning robot; providing a design drawing of a pipeline, and establishing a pipeline structure model in the river-crossing corridor structure model according to the design drawing; drawing a plurality of brackets and embedded parts between the pipeline structure model and the river-crossing gallery structure model according to the site construction condition; pre-embedded parts and supports of all nodes are prefabricated according to the river-crossing gallery structure model; the assembling positions of the embedded part and the support are determined according to the river-crossing corridor structure model, the embedded part is embedded in the corridor according to the assembling positions, the support is arranged on the embedded part, the pipeline is laid on the support, operation is easy, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to a pipeline assembly construction method for a river-crossing corridor. Background Art

[0002] With the acceleration of the urbanization process and the continuous deepening of infrastructure construction, the construction of corridor pipelines crossing rivers, lakes and seas has become an important project for connecting both banks and ensuring people's livelihood. Currently, the traditional installation method of corridor pipeline supports requires setting embedded parts and supports in the corridor, and then setting the pipeline on the supports. Due to the on-site construction requirements, it is necessary to arrange the actual stress conditions of the embedded parts and supports, so construction workers need to go into the pipe gallery for surveying and mapping, resulting in a significant reduction in the construction progress. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a pipeline assembly construction method for a river-crossing corridor. By using a scanning robot for surveying and mapping to establish a sectional cross-section structure model, and combining this sectional cross-section structure model with the three-dimensional model of the corridor, the positions of the embedded parts and supports of the pipeline can be accurately known, thus facilitating subsequent construction.

[0004] The technical solution to achieve the above purpose is a pipeline assembly construction method for a river-crossing corridor, including the following steps:

[0005] Provide a scanning robot, scan the structure of the river-crossing corridor through the scanning robot, and draw a river-crossing corridor structure model according to the scanning results of the scanning robot;

[0006] Provide the design drawings of the pipeline, and establish a pipeline structure model in the river-crossing corridor structure model according to the design drawings;

[0007] According to the on-site construction conditions, draw several supports and embedded parts between the pipeline structure model and the river-crossing corridor structure model;

[0008] Precast the embedded parts and supports of each node according to the river-crossing corridor structure model;

[0009] Determine the assembly positions of the embedded parts and the supports according to the river-crossing corridor structure model, bury the embedded parts in the corridor according to the assembly positions, set the supports on the embedded parts, and lay the pipeline on the supports.

[0010] Further, when scanning the structure of the river-crossing corridor through the scanning robot, provide a total station instrument, and use the total station instrument to set the elevation control points for the sectional pipelines of the sectional cross-section structure model.

[0011] Further, after drawing the 3D model of the corridor, optimize the 3D model of the corridor through BIM technology.

[0012] Further, before assembling the embedded parts and the brackets, check the specifications of the embedded parts and the brackets.

[0013] Further, when assembling the embedded parts, provide a positioning robot, import the structure model of the river-crossing corridor into the positioning robot, and position the installation position of the embedded parts through the positioning robot.

[0014] Further, after the embedded parts are buried in the installation position, level the embedded parts, and install the brackets on the leveled embedded parts.

[0015] Further, before installing the embedded parts, provide a level, determine the level center line of the pipe gallery through the level, and arrange the embedded parts on both sides of the level center line relatively.

[0016] Further, after the installation of the embedded parts is completed, perform anti-corrosion treatment on the embedded parts.

[0017] Further, when prefabricating the brackets, draw the cutting model of the brackets, provide a laser cutting machine and profiles, import the cutting model into the laser cutting machine, and the laser cutting machine cuts the profiles according to the cutting model, and welds and assembles the cut profiles to form the brackets.

[0018] Further, when prefabricating the embedded parts, draw the cutting model of the embedded parts, provide a laser cutting machine and profiles, import the cutting model into the laser cutting machine, and the laser cutting machine cuts the profiles according to the cutting model, and welds and assembles the cut profiles to form the embedded parts.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By using a scanning robot for surveying and mapping to establish a sectional structure model, combining the sectional structure model with the 3D model of the corridor, the positions of the embedded parts and brackets of the pipeline can be accurately known, thus facilitating subsequent construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an installation effect diagram of the embedded parts of a pipeline assembly construction method for a river-crossing corridor;

[0022] Figure 2 It is a schematic structural diagram of the embedded parts of a pipeline assembly construction method for a river-crossing corridor;

[0023] Figure 3 Schematic diagram of the structure of a support for a pipeline assembly construction method for a river-crossing corridor;

[0024] Legend: 1. Embedded part; 2. Support; 3. River-crossing corridor. Specific implementation mode

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Refer to Figure 1 , a pipeline assembly construction method for a river-crossing corridor, comprising the following steps: providing a scanning robot, scanning the structure of the river-crossing corridor 3 through the scanning robot, and drawing a river-crossing corridor structure model according to the scanning result of the scanning robot; providing a design drawing of the pipeline, and establishing a pipeline structure model in the river-crossing corridor structure model according to the design drawing; drawing a plurality of supports 2 between the pipeline structure model and the river-crossing corridor structure model according to the on-site construction conditions; prefabricating the embedded parts 1 and supports 2 of each node according to the river-crossing corridor structure model; determining the assembly positions of the embedded parts 1 and the supports 2 according to the river-crossing corridor structure model, burying the embedded parts 1 in the corridor according to the assembly positions, setting the supports 2 on the embedded parts 1, and laying the pipeline on the supports 2.

[0027] In the present invention, a preferred implementation mode is: scanning the structure of the corridor through a scanning robot to obtain a real river-crossing corridor structure model, drawing a pipeline structure model on the basis of this river-crossing corridor 3, and then drawing a support 2 between the pipeline structure model and the river-crossing corridor structure model, sending the drawn support 2 to an industrialization base for production, and installing the embedded parts 1 and the support 2 in the river-crossing corridor 3 after production is completed, so as to facilitate subsequent construction. In this embodiment, the total length of the corridor is 1945 m, and a set of assembled supports 2 and embedded parts 1 are arranged every 6 m. There are a total of 325 sets of supports 2 in the entire corridor.

[0028] Furthermore, the project uses a Trimble TX8 3D scanner + Software to obtain data at a speed of 1 million accurate laser points per second. Each station scan can be completed in only 2-3 minutes. A complete data set can be obtained from each measurement station. The TX8 is integrated with a built-in camera. After the field data collection is completed, it can be directly opened with Trimble Realworks software. Using the Trimble target automatic stitching technology, the registration operation is automatically completed, and the absolute coordinate conversion is performed through the coordinates of the target ball installed at the known point. The surface and inspection tools in the analysis module of Trimble Realworks software can compare and analyze the design model and the point cloud data, and obtain a three-dimensional model diagram of the corridor structure.

[0029] Furthermore, when drawing the pipeline structure model, based on the scanning results of the river crossing corridor 3, the pipeline was divided into sections with the principle of minimizing the misalignment between pipelines. The pipeline was corrected by adjusting the amount of misalignment and increasing the number of misalignments.

[0030] Embedded component 1 consists of three parts: a steel plate, anchor bars, and adjustable screws. The steel plate measures 1300 x 400 mm, is 15 mm thick, and is made of Q235B. Eight hook-shaped anchor bars, 225 mm tall and 12 mm in diameter, are welded to the bottom of each plate. Four adjustable screws, each with a 16 mm diameter, are welded to the bottom of each plate. The backing plate measures 30 x 30 mm and is 15 mm thick. Embedded components 1 for the on-site support 2 are arranged every 6 meters, totaling 650 throughout the corridor.

[0031] Furthermore, the prefabricated bracket 2 is divided into two parts: a clamp and an H-shaped steel bracket 2. The two parts are connected by bolts. The clamp consists of upper and lower 10mm steel plate clamps with a width of 200mm and a size of DN1400mm. The lower pipe support clamp is plugged with a 5mm thick rubber pad to ensure uniform stress distribution on the pipe. The pipe support is bolted to the lower H-shaped steel with specifications of HW200*200*8*12. The pipe support bolt holes are provided with waist-shaped holes for adjustment. The clamp and pipe are pre-assembled to facilitate securement during transportation with EDV vehicles. Furthermore, the H-shaped steel commonly used in large-diameter pipe brackets 2 is heavy and inconvenient to transport. The prefabricated bracket 2, combined positioning base, and prefabricated accessories achieve zero welding within the corridor. The components of the complete bracket 2 set and their connection methods are rationally designed based on the construction process. An installation flow chart is developed to achieve fully prefabricated intelligent installation within the corridor.

[0032] Furthermore, the technical parameters of bracket 2 are: beam: HW200*200*8*12, column: HW200*200*8*12, material: Q355B. The middle span length is 1770mm, the cantilever end length is 1415mm, and the column length is 2330mm.

[0033] Furthermore, while the scanning robot is scanning the structure of Crossing Corridor 3, a total station is provided to measure and locate elevation control points for the segmented pipelines in the segmented cross-section structural model. Preferably, the total station is used to measure and locate elevation control points for the segmented pipelines. For example, if the pipeline segment is 48 meters long, the positions of two points before and after the 48-meter mark are measured and located. These points serve as the pouring elevation for the final cushion layer, with an accuracy of within 2 mm.

[0034] Furthermore, after the 3D model of the corridor is drawn, the 3D model of the corridor is optimized by BIM technology.

[0035] Furthermore, before assembling the embedded part 1 and the bracket 2, the specifications of the embedded part 1 and the bracket 2 are checked. Preferably, the approval and confirmation of material samples are implemented in accordance with the procedures for project material approval and confirmation. After the samples of the embedded part 1 and the bracket 2 are reported to the owner, the supervisor, and the design institute for confirmation, a sample retention system is implemented to provide a basis for rechecking the quality of the materials in the future. After the finished products of the embedded part 1 and the bracket 2 arrive at the construction site, a detailed acceptance inspection is carried out, including quantity, size, shape, material, etc. Check whether there are any damages, deformations, or rusts on the embedded part 1, and check whether the models and specifications of the embedded part 1 and the bracket 2 match the design drawings. After passing the acceptance, store and protect them properly in the warehouse to prevent damages before construction. Each bracket 2 is assigned a unique QR code number and recorded in the database. In this way, when the bracket 2 is taken out of the warehouse, only by scanning the QR code can the detailed information of the bracket 2 be quickly obtained, improving the logistics efficiency and the on-site installation efficiency.

[0036] Furthermore, when assembling the embedded part 1, a positioning robot is provided, and the structure model of the river-crossing corridor is imported into the positioning robot, and the installation position of the embedded part 1 is positioned by the positioning robot. Preferably, the relevant data of the BIM model of the track embedded part 1 is imported into the scanning robot to locate the position of the center line in the through-piece corridor. Then, the position lines of the 4 adjustable screws released by the line fitter are marked with ink lines. Use a pistol drill to drill out 4 holes according to the marked positions. The size of the holes is a circle with a diameter of 20 mm and the hole depth is 40 mm. Put the 4 screws of the embedded part 1 into the holes, and then adjust the 4 movable screws according to the elevation requirements of the embedded part 1 of the river-crossing corridor structure model after the layout, so that the embedded steel plate meets the slope requirements of the design drawings. In this implementation, the diameter of the movable screw of the embedded part 1 is 16 mm and the screw length is 300 mm. The height of the screw is adjusted by rotating the backing plate to screw the screw into the sleeve, and the adjustable range is 20 - 80 mm. The distance between two adjacent screws is 200 mm, and the maximum slope in the corridor is 4.8%, so the adjustable range is at least 9.6 mm. It can be seen that the length of the movable screw of the embedded part 1 meets this requirement. After finely adjusting the screw lengths of the bracket 2 embedded part 1 and the track embedded part 1, use a measuring robot to recheck the embedded position and elevation. After the recheck is correct, pour concrete into the holes to fix the screws.

[0037] Further, after the embedded part 1 is embedded in the installation position, level the embedded part 1, and install the bracket 2 on the leveled embedded part 1. Preferably, in order to make the bracket 2 bear force better, all the columns of the bracket 2 are vertically pointed to the center of the earth. Since there is a slope in the pipe gallery, the embedded part 1 of the bracket 2 also has a certain slope. To make the bracket 2 and the embedded part 1 fit more closely and reduce the subsequent cutting and welding work, the legs of the bracket 2 also need to be angled according to the inclination angle of the embedded part 1. First, position all the left and right positions of the bracket 2 on the embedded part 1, draw the cross centerlines, measure the longitudinal and transverse inclination angle data with an angle gauge according to the position of each centerline, record them uniformly, and then feedback them to the production of the bracket 2. Laser cutting processing is carried out in the factory in advance to reduce the on-site cutting workload; before batch prefabricating the bracket 2, adjust the inclination angles of the cross beam and legs of the bracket 2 according to the measured inclination angle data of the embedded part 1 to make the force of the bracket 2 more reasonable. Due to the limited space in the pipe gallery and the dense pipelines, for example, in this project, 3 DN1400 water conveyance pipelines need to be laid in the pipe gallery with a cross-sectional diameter of DN5500mm. The up, down, left, and right spaces of the pipelines need to be accurately positioned to prevent the situation that the distance in one direction is seriously over-wide or the width in one direction is too narrow. Therefore, first use a total station to measure the height of each embedded part 1 of the bracket 2, then arrange the upper and lower layer pipelines to determine the basic direction of the pipelines (while meeting the pipeline installation space, try to reduce the pipe trimming), and calculate the installation height of each bracket 2 according to the pipeline direction. At the same time, calculate the inclination angle of the cross beam of the bracket 2 according to the installation slope of the pipeline to ensure that each bracket 2 fits closely with the pipeline.

[0038] Further, before installing the embedded part 1, provide a level, and determine the level centerline of the pipe gallery through the level, and set the embedded part 1 on both sides of the level centerline relatively.

[0039] Further, after the installation of the embedded part 1 is completed, perform anti-corrosion treatment on the embedded part 1.

[0040] Further, when prefabricating the bracket 2, draw the cutting model of the bracket 2, provide a laser cutting machine and profiles, import the cutting model into the laser cutting machine, and the laser cutting machine cuts the profiles according to the cutting model, and weld and assemble the cut profiles to form the bracket 2.

[0041] Furthermore, the embedded part 1 is prefabricated in a factory. According to the requirements of the design drawings, the embedded part 1 is manufactured, including technological processes such as steel plate cutting and anchor bar welding. The size of the steel plate is 1300*400 mm, with a thickness of 15 mm, and the material is Q235B; 8 hook-shaped anchor bars with a height of 225 mm are welded at the bottom of each steel plate, and the diameter of the steel bars is 12 mm; 4 adjustable screws are welded at the bottom of each steel plate, where the diameter of the screw is 16 mm, the size of the backing plate is 30*30 mm, and the thickness is 15 mm. Before cutting the steel plate, the CypNest (2023V2) industrial software is used to draw the cutting model, and then the model is imported into a 12 kW laser cutting machine for precise cutting. The anchor bars and adjustable screws are welded by a dexterous welding robot. After welding, necessary anti-corrosion treatment is carried out to prevent rust. During the manufacturing process, the quality of the materials is strictly controlled to ensure that the size, shape, and strength of the embedded part 1 meet the design requirements.

[0042] Furthermore, when prefabricating the embedded part 1, draw the cutting model of the embedded part 1, provide a laser cutting machine and profiles, import the cutting model into the laser cutting machine, and the laser cutting machine cuts the profiles according to the cutting model, and the cut profiles are welded and assembled to form the embedded part 1.

[0043] Furthermore, the bracket 2 is also prefabricated in a factory. According to the requirements of the design drawings, the bracket 2 is manufactured, including technological processes such as steel plate cutting and welding. The size of the H-shaped steel is HW200*200*8*12, and the material is Q235B. Before cutting the steel section, the TubesT industrial software is used to draw the cutting model, and then the model is imported into a 6 kW laser pipe cutting machine for precise cutting. Then, a smart welding robot is used to assemble and weld the cut steel sections. After welding, necessary anti-corrosion treatment is carried out to prevent rust. During the manufacturing process, the quality of the materials is strictly controlled to ensure that the size, shape, and strength of the steel section bracket 2 meet the design requirements.

[0044] The following describes the usage process of a pipeline assembly construction method for a cross-river corridor of the present invention.

[0045] First, use a scanning robot to accurately scan the corridor structure to obtain detailed structural data. Then, based on this data, establish a cross-river corridor structure model. According to the design drawings, establish a pipeline structure model within the cross-river corridor structure model. Draw brackets 2 and embedded parts 1 between the pipeline structure model and the cross-river corridor structure model. Conduct a detailed design optimization of the embedded parts 1 to ensure their perfect fit with the corridor structure. Subsequently, based on the design of the embedded parts 1, further optimize the overall structure of the brackets 2. Use BIM technology to construct a detailed layout diagram of the brackets 2 within the corridor to provide precise guidance for subsequent processing and manufacturing. At the same time, perform a force calculation on the brackets 2 to ensure that they can safely bear the required loads in actual applications. After confirming that the design is correct, start prefabricating samples of the brackets 2 and the embedded parts 1 and conduct strict quality verification. After that, batch-prepare the optimized embedded parts 1 in the factory. During the batch prefabrication stage of the brackets 2, adopt advanced numerical control cutting and robotic welding technologies to ensure the prefabrication quality and production efficiency of the brackets 2. Install them into the corridor structure and use a positioning robot to scan again to obtain the elevation and position data of the embedded parts 1 after installation. According to the scanning results, adjust the bottom inclination angle of the bracket 2 model so that the bracket 2 can accurately match the installed embedded parts 1. Then, use section steel software to draw the cutting model to ensure the accuracy of material cutting. Conduct precise cutting processing through numerical control equipment and use robots for high-quality welding operations. After the finished products are completed, conduct strict quality inspections and assign a unique QR code number to each product to ensure that only qualified products can be stored out of the warehouse. Finally, track the on-site installation process and review the installation results to ensure that the installation quality of the brackets 2 and the embedded parts 1 meets the design requirements.

[0046] The present invention has been described in detail above in conjunction with the embodiments with reference to the drawings. Those of ordinary skill in the art can make various variations to the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation to the present invention, and the protection scope of the present invention will be defined by the scope defined in the appended claims.

Claims

1. A pipeline assembly construction method for a river-crossing corridor, characterized in that, The steps are as follows: Provide a scanning robot to scan the structure of the river-crossing corridor and draw a structural model of the river-crossing corridor based on the scanning results of the scanning robot; Provide the design drawings of the pipeline and establish a pipeline structure model within the structural model of the river-crossing corridor according to the design drawings; Draw a number of brackets and embedded parts between the pipeline structure model and the structural model of the river-crossing corridor according to the on-site construction conditions; Prefabricate the embedded parts and brackets of each node according to the structural model of the river-crossing corridor; Determine the assembly positions of the embedded parts and the brackets according to the structural model of the river-crossing corridor, bury the embedded parts in the corridor according to the assembly positions, set the brackets on the embedded parts, and lay the pipeline on the brackets; 2. The pipeline assembly construction method of a river-crossing corridor according to claim 1, characterized in that: in When scanning the structure of the river-crossing corridor by the scanning robot, provide a total station to measure and set the elevation control points of the segmented pipelines of the segmented cross-section structure model; 3. A pipeline assembly construction method for a river-crossing corridor according to claim 1, characterized in that: After drawing the three-dimensional model of the corridor, optimize the three-dimensional model of the corridor by BIM technology; 4. The pipeline assembly construction method of a river-crossing corridor according to claim 1, characterized in that: in Before assembling the embedded parts and the brackets, check the specifications of the embedded parts and the brackets; 5. The pipeline assembly construction method of a river-crossing corridor according to claim 1, characterized in that: in When assembling the embedded parts, provide a positioning robot, import the structural model of the river-crossing corridor into the positioning robot, and position the installation positions of the embedded parts by the positioning robot; 6. The pipeline assembly construction method of a river-crossing corridor according to claim 5, characterized in that: in After the embedded parts are buried in the installation positions, level the embedded parts and install the brackets on the leveled embedded parts; 7. A pipeline assembly construction method for a river-crossing corridor according to claim 1, characterized in that: at Before installing the embedded parts, provide a level, determine the level center line of the pipe gallery by the level, and set the embedded parts on both sides of the level center line relatively; 8. A pipeline assembly construction method for a river-crossing corridor according to claim 1, characterized in that: After the installation of the embedded parts is completed, perform anti-corrosion treatment on the embedded parts; 9. The pipeline assembly construction method of a cross-river corridor according to claim 1, characterized in that: in When prefabricating the brackets, draw the cutting model of the brackets, provide a laser cutting machine and profiles, import the cutting model into the laser cutting machine, and the laser cutting machine cuts the profiles according to the cutting model, and welds and assembles the cut profiles to form the brackets; 10. A pipeline assembly construction method for a river-crossing corridor according to claim 1, characterized in that: at When prefabricating the embedded parts, draw the cutting model of the embedded parts, provide a laser cutting machine and profiles, import the cutting model into the laser cutting machine, and the laser cutting machine cuts the profiles according to the cutting model, and welds and assembles the cut profiles to form the embedded parts;

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