Integral jacking construction method and system for modularized electromechanical pipeline of large venue

Abstract

The invention discloses an integral jacking construction method and system for a modular electromechanical pipeline of a large venue. The method comprises the following steps of S1, BIM modular design, S2, modular segmentation, S3, modular assembly and transportation, S4, integral jacking construction and S5, butt joint of a front module and a rear module. The system comprises a BIM (Building Information Modeling) design module, a modular segmentation measurement unit, modular assembly equipment, a special jacking equipment group and a forklift transportation assembly, according to the method, BIM modular design, modular segmentation and prefabricated assembly type production are combined, through jacking equipment and precision control technology innovation, high-place cross operation interference is avoided by means of overall jacking, and the construction time is shortened; bIM design optimization and jacking precision control are utilized, so that the quality problem is effectively reduced; the material utilization rate is improved through modularization and prefabrication, rework waste is reduced, and the labor cost and the material waste rate are effectively reduced; and in the aspect of construction safety, high-place operation is reduced through overall jacking, potential safety hazards are avoided, and comprehensive benefits of construction are effectively enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a method and system for integrally lifting modular electromechanical pipelines of a large venue. Background Art

[0002] In the field of modern construction, with the growing demand for large-scale venue construction, the construction of electromechanical pipelines faces many severe challenges. The traditional method of installing electromechanical pipelines mainly relies on high-altitude operations to assemble the systems one by one, which exposes a series of difficult-to-solve problems in large-scale venue projects.

[0003] Cross-disciplinary construction is a common dilemma. Construction teams of different disciplines work independently and simultaneously in a limited space, resulting in extremely low construction efficiency. For example, the installation of pipelines for electrical, water supply and drainage, ventilation and air conditioning and other disciplines interfere with each other. Workers often have to wait for other disciplines to complete part of their work before they can continue, which seriously delays the construction progress.

[0004] Spatial conflicts frequently occur. Due to the lack of effective coordination between different disciplines during design and construction, pipelines of different disciplines are arranged disorderly in a limited space, occupying each other's space, which greatly increases the difficulty of installation and often fails to meet the clearance standards required by the specifications. This not only affects the smooth progress of construction, but may also cause great inconvenience to subsequent maintenance and repair work.

[0005] Elevation confusion is also a major problem. During the construction process, each professional often only pays attention to its own elevation requirements, but does not consider the overall level, resulting in unreasonable pipeline elevation settings in some areas. This may affect the use of the venue, such as causing space waste or affecting the normal installation and operation of equipment, and also destroying the overall aesthetics.

[0006] In addition, the coordination during the construction process is fraught with difficulties, involving multiple disciplines and numerous construction teams, poor communication channels, and untimely information transmission. Once a problem arises, coordination work often comes to a standstill, which in turn leads to obstruction of construction progress and even the need for a large amount of rework, resulting in a serious waste of resources.

[0007] Improper construction sequence also happens from time to time, and an unreasonable construction sequence will prevent the subsequent pipeline installation from proceeding smoothly. For example, if some key pipelines are installed too early, they may hinder the laying path of other pipelines, and re-adjusting the construction sequence will cost a lot of time and manpower costs.

[0008] In terms of finished product protection, due to the complex construction environment, the installed pipelines are extremely vulnerable to damage such as collision and extrusion during the subsequent construction process, which increases construction costs and quality risks.

[0009] The unreasonable setting of supports and hangers should not be ignored either. If the position, strength and other parameters of the supports and hangers are not designed properly, it will lead to instability of the pipeline during operation and excessive local force, which will not only affect the service life of the pipeline, but may also cause safety hazards.

[0010] To sum up, the traditional electromechanical pipeline installation method can no longer meet the high quality and high efficiency requirements of large-scale venue construction. There is an urgent need for a new, efficient and reliable construction technology to solve these problems. This is the background for the emergence of modular electromechanical pipeline overall lifting construction technology for large venues. Summary of the invention

[0011] In view of the above technical problems in the related art, the present invention proposes a method and system for integral jacking construction of modular electromechanical pipelines in large venues, which can overcome the above shortcomings of the prior art.

[0012] To achieve the above technical objectives, the technical solution of the present invention is implemented as follows: A method for overall lifting construction of modular electromechanical pipelines in large venues; The overall jacking construction method of modular electromechanical pipelines in large venues includes the following steps: S1. BIM modular design: Use BIM forward design to establish a three-dimensional model of electromechanical pipelines, identify and solve pipeline space conflicts through collision detection functions; optimize the layout of multi-professional pipelines, adjust at least 30% of the pipeline directions to improve space utilization; perform stress analysis on the joint bracket to control its maximum stress not to exceed 80% of the material yield strength; S2. Modular segmentation: Select the electromechanical pipelines in the concentrated area of ​​the basement computer room, and divide the pipelines into multiple independent modules according to the actual direction and equipment distribution. The length of each module is 5-8 meters. Use a total station to conduct multiple on-site measurements of complex node areas, and determine the optimal segmentation path after comparing the segmentation schemes. S3. Modular assembly and transportation: Assemble the modules in the prefabrication workshop, use a plumb line to check the verticality of the flange, and control the error within ±0.5 mm; after assembly, wrap the non-interface area of ​​the module with three layers of plastic film and fix it; use a forklift with a customized fork frame to transport the module, and install a sway monitoring sensor on the forklift to monitor the transportation stability in real time; S4. Overall lifting construction: Place the module on the mobile lifting platform, and use the positioning holes and infrared instrument to calibrate the positioning with the previous module; lift it to the target height at a rate of 0.5-1 m / min through the linkage hydraulic lifting device. During the lifting process, the levelness of the platform is monitored by the level sensor, and the lifting height error is controlled within ±5 mm; S5. Front and Rear Module Docking: Construction workers adjust the position of the module interface through a mobile operation platform, fix the support connecting plate and bolts according to the diagonal principle, and tighten them with a torque wrench according to the preset torque value; after completion of splicing, the lifting platform is removed and the construction of the next module is carried out.

[0013] Further, in the step S1: The collision detection function identifies and solves at least 200 pipeline collision problems; the force analysis of the combined support is realized through finite element simulation to ensure that the stress distribution meets the safety threshold.

[0014] Further, in the step S2: The number of the segmented modules is 15, and the total length of the segmented pipelines is 50 meters; the segmentation scheme of the complex node area is determined through more than three on-site re-surveys.

[0015] Further, in the step S3: The module assembly is completed on a special assembly rack, and the assembly rack is equipped with an electric hoist and a guide rail for module transfer; when the fork rack is transported, two forklifts cooperate, and the traveling speed of the forklift does not exceed 3 km / h.

[0016] Further, in the step S4: The mobile lifting platform is provided with channel steel fixing piles, and the module is tied to the fixing piles through belts; the lifting capacity of the hydraulic lifting device is 1.5 times the maximum weight of the module, and the bearing capacity of the base is 150% of the lifting weight.

[0017] Further, in the step S5: The mobile operation platform is equipped with a laser locator for assisting in fine-tuning of the interface; the preset torque value of the bolt is 30 - 50 N·m, and the error range is ±5%.

[0018] According to another aspect of the present invention, a large-scale venue modular electromechanical pipeline integral lifting construction system is provided; The large-scale venue modular electromechanical pipeline integral lifting construction system includes a BIM design module, a modular segmentation measurement unit, a modular assembly device, a special lifting equipment group, and a forklift transportation component; The BIM design module: integrates Revit software and finite element analysis tools for pipeline optimization and support force simulation; The modular segmentation measurement unit: includes a total station and a 3D scanner for complex node data acquisition; The modular assembly device: includes an assembly rack, an electric hoist, and a guide rail for module prefabrication, assembly, and transfer; The special lifting equipment group: consists of a hydraulic lifting device, a bearing base, and a fine-tuning platform, and the positioning accuracy of the fine-tuning platform is ±1 mm; The forklift transportation component: is equipped with a customized fork rack and a shaking monitoring sensor, and the sampling frequency of the sensor is 100 Hz.

[0019] Furthermore, the bearing base is welded from Q355B steel and is provided with anti-slip patterns on its surface; the fine-tuning platform is equipped with a ball screw and a servo motor to achieve displacement control at the ±1 mm level.

[0020] Furthermore, it includes a mobile lifting platform for carrying modules and performing lifting operations, and a mobile operation platform for construction workers to operate during module docking and assembly. The mobile lifting platform includes positioning holes, an infrared instrument, and standard holes.

[0021] Advantages of the present invention: By combining BIM modular design, modular segmentation, and prefabricated production, and through innovation in lifting equipment and precision control technology, it effectively solves the problems in the construction of large-scale venue mechanical and electrical pipelines. By means of overall lifting, it avoids interference from high-altitude cross operations, significantly shortening the construction time; it uses BIM design optimization and lifting precision control to solve traditional problems, effectively reducing quality problems; modularization and prefabrication improve material utilization rate and reduce rework waste, effectively reducing labor costs and material waste rate; in terms of construction safety, overall lifting reduces high-altitude operations and avoids potential safety hazards, ensuring the early insertion of mechanical and electrical systems and stable construction period, effectively enhancing the comprehensive benefits of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a process flow chart of a method for overall lifting construction of modular mechanical and electrical pipelines in large-scale venues according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0025] It should be understood that in the description of the embodiments of the present invention, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present invention, "several" means two or more, unless otherwise specifically defined.

[0026] As Figure 1 shown, a method for the overall jacking construction of modular mechanical and electrical pipelines in a large venue according to an embodiment of the present invention includes the following steps: BIM modular design: Apply the BIM forward design concept to carefully create mechanical and electrical pipeline modules according to the actual engineering requirements. In the design process, advance the BIM deepening link of the comprehensive pipeline, and use the collision detection function of professional software to accurately identify and successfully solve about 200 pipeline collision problems, avoiding potential space conflict hazards in the construction stage from the source. At the same time, scientifically optimize the layout of multi-disciplinary pipelines based on the BIM model, making the routing of about 30% of the pipelines more reasonable and significantly improving the space utilization rate. In addition, conduct a rigorous force analysis on the combined brackets, and through precise calculation and simulation evaluation, ensure that the maximum stress of the brackets is strictly controlled within 80% of the material yield strength, providing a solid visual guidance for subsequent construction.

[0027] Modular segmentation: Closely combine the actual characteristics of the project, and accurately select the mechanical and electrical pipelines in the centralized area of the basement machine room as the object of the overall lifting construction. For the pipelines with a length of about 50 meters in this area, considering their actual routing and equipment distribution, they are cleverly segmented into about 15 modules, and the length of each module is accurately controlled within the range of 5-8 meters. During the segmentation implementation process, use high-precision measuring instruments for fine measurement and complex calculation to fully ensure the independent integrity of each module while fully considering the convenience of connection between modules. For the pipeline segmentation in complex node areas, adopt the strategy of multiple on-site surveys and repeated measurement and comparison of different schemes to screen and determine the optimal segmentation scheme to ensure that the module segmentation quality fully meets the requirements of the overall jacking construction.

[0028] Modular assembly and transportation: In the modular assembly process, efficient prefabrication work is carried out in a professional processing workshop in strict accordance with the BIM module drawings. During the assembly, the verticality of the flange is accurately checked with a vertical line to ensure that the vertical error of the upper and lower holes is controlled within ±0.5 mm, ensuring the smooth splicing of the front and rear flanges. After the module is prefabricated, the finished product protection measures are quickly implemented. After the module insulation and logo installation operations are completed, the non-interface area of ​​the module is wrapped three times with plastic film and firmly fixed with plastic tape to effectively prevent damage during transportation and storage. After the module components are assembled on the special assembly rack, they are smoothly transferred to the stacking rack with the help of the electric hoist and guide rails installed above the assembly rack. In terms of modular transportation, a universal fork frame is customized according to the size of the component, and two forklifts are arranged to cooperate in forklifting at both ends of the module. The shaking condition of the module during transportation is monitored in real time through the shaking monitoring sensor installed on the forklift to ensure transportation stability. After the forklift is transported to the designated location, the module is accurately placed on the mobile lifting platform to prepare for the subsequent overall jacking construction.

[0029] Overall jacking construction: Before construction, the lifting platform is finely debugged to ensure that the positioning holes and infrared instrument function normally. After the lifting platform is accurately moved to the predetermined position, the positioning holes and infrared instrument are used to perform high-precision calibration with the previous module. After the calibration is correct, the channel steel fixing piles are installed in the standard holes on both sides of the lifting platform. Subsequently, the module is carefully placed on the platform using a forklift, and four fixing piles are firmly installed on both sides of the module and tightly fixed with belts. The forklift again places the module fork close to the fixed positioning piles and confirms the fixed state. Next, the two lifting platforms are started to lift the module upward in linkage. When the lifting height reaches half of the target height, the lifting is suspended. The horizontal condition of the platform is monitored with the help of the horizontal sensor installed on the platform. After confirmation, the platform is slowly lifted until it approaches the target height. Fine adjustments are made during this process to ensure that it is at the same height as the previous module. After the height is determined, the lifting is stopped, and the construction personnel take the mobile operating platform to make precise adjustments to the module front and back and left and right to ensure that the front and rear module interfaces are tightly spliced ​​before assembly.

[0030] Docking of front and rear modules: After the module is lifted to the designated position, the construction personnel take the mobile operating platform to the designated position and use the movable platform of the lifting platform to accurately adjust the module position to ensure that the front and rear module interfaces are perfectly aligned. First, the interface splicing operation is performed to ensure that the connection is firm and reliable, and then the connecting plates and bolts of the fixed bracket are installed in order according to the diagonal principle, and the bolts are tightened according to the specified torque value using a torque wrench to ensure that the bracket is firmly fixed. After the fixation is completed, a comprehensive inspection is carried out, and the lifting platform is removed after confirmation to prepare for the lifting and docking of the next module.

[0031] Construction system composition: On the other hand, the present invention provides a large-scale venue modular mechanical and electrical pipeline integral jacking construction system, which integrates a professional software platform for BIM design, with powerful modeling, analysis and collaboration functions, providing technical support for the design of mechanical and electrical pipeline modules; equipped with high-precision modular segmentation measurement tools, such as total station instruments, etc., to ensure the accuracy of the segmentation process; having advanced modular assembly equipment, including assembly racks, electric hoists and guide rails, etc., to ensure the efficiency and precision of module assembly; and special jacking equipment, such as high-performance hydraulic jacking devices, high-strength load-bearing bases and high-precision fine-tuning platforms, etc., providing stable and reliable power and precision guarantee for the integral jacking construction. Each component works closely and cooperates with each other to jointly promote the efficient and precise implementation of mechanical and electrical pipeline construction.

[0032] To facilitate the understanding of the above technical solutions of the present invention, the above technical solutions of the present invention will be described in detail below through specific usage methods.

[0033] In specific use, according to a large-scale venue modular mechanical and electrical pipeline integral jacking construction method described in the present invention, its specific implementation manner is as follows: Engineering preparation stage: Form a professional team: Assemble engineers, technicians and experienced construction workers from multiple disciplines such as architecture, structure, and mechanical and electrical, to form a project team with comprehensive knowledge and skills. Ensure that team members are familiar with the construction technical process and requirements of the present invention, and can proficiently use relevant tools and equipment.

[0034] Construction site planning: According to the overall layout of the venue and the construction process, reasonably divide different functional areas such as BIM design area, module prefabrication and processing workshop, material stacking area, assembly area, jacking construction area and module storage area, etc. Ensure convenient transportation between each area, smooth material transportation, and no interference with each other.

[0035] Equipment and material procurement: According to the construction design requirements, purchase high-quality building materials, including various specifications of mechanical and electrical pipelines, support materials, flanges, etc. At the same time, equip advanced construction equipment, such as high-precision total station instruments, plumb line measuring instruments, electric hoists, forklifts, hydraulic jacking devices, mobile lifting platforms, laser positioning instruments, sensors, torque wrenches, etc., and ensure that the equipment undergoes strict debugging and calibration before construction and is in good operating condition.

[0036] Implementation of BIM modular design: Requirement analysis and model creation: The project team deeply studies the functional requirements, spatial layout of the venue and the technical requirements of the mechanical and electrical system, and uses professional BIM software (such as Revit, etc.) to create a detailed three-dimensional model of the building and mechanical and electrical pipelines. During the model creation process, professionals from each discipline work together to communicate and resolve design conflicts in real time.

[0037] Collision detection and optimization adjustment: Utilize the collision detection function of BIM software to comprehensively inspect the integrated pipeline model, identify and mark potential pipeline collision points. For these collision points, organize professionals for analysis and discussion, and optimize by adjusting the pipeline alignment, elevation, or changing the equipment position, etc., to ensure a reasonable pipeline layout and avoid spatial conflicts. At the same time, design and optimize the combined support according to the analysis results. Through simulation calculations, control the maximum stress of the support within 80% of the material yield strength.

[0038] Generate construction drawings and documents: After optimizing the BIM model, generate detailed construction drawings for the mechanical and electrical pipeline modules based on the model, including three-view drawings, sectional views, node details, etc. At the same time, compile construction technical disclosure documents, material lists, equipment lists, and construction schedules, etc., to provide comprehensive guidance and basis for subsequent construction.

[0039] Steps of modular segmentation operation: On-site investigation and measurement: Construction workers carry high-precision total stations and other measurement equipment into the centralized area of the basement machine room, and conduct detailed on-site investigations and measurements on the selected approximately 50-meter-long mechanical and electrical pipelines. Record information such as the actual pipeline alignment, pipe diameter, equipment position, connection method, etc., and draw on-site sketches.

[0040] Determine the segmentation plan: According to the on-site measurement data and BIM model information, combined with the technical requirements of the overall jacking construction, jointly discuss and determine the modular segmentation plan by the project team. Reasonably divide the pipeline into several modules, with the length of each module controlled between 5 - 8 meters, and clarify the boundaries and interface positions of each module. For complex node areas, such as parts with dense pipeline intersections or connections to large equipment, conduct multiple on-site rechecks and measurements, compare different segmentation plans, and select the optimal plan to ensure the independence, integrity, and connection convenience of the modules.

[0041] Module information marking and verification: After determining the segmentation plan, use CAD software or other drawing tools to draw detailed drawings of each module, mark the dimensions, interface positions, pipeline alignment, pipe diameter, elevation, and other relevant technical parameters of the module. Conduct strict verification on the drawn drawings to ensure the accuracy of the information. At the same time, enter the module information into the construction management system to facilitate query and management during subsequent prefabrication, transportation, and installation processes.

[0042] Modular assembly and transportation process: Modular assembly process: Preparation in the prefabrication workshop: In the processing workshop, prepare the required materials, tools, and equipment according to the module drawings and construction process requirements. Conduct technical training and safety disclosure for workers to ensure that workers are familiar with the assembly process and quality requirements.

[0043] Component prefabrication and assembly: According to the requirements of the drawings, prefabricate and process components such as mechanical and electrical pipelines, supports, and flanges. During the assembly process, strictly control the perpendicularity of the flanges, use a plumb bob measuring instrument for verification, ensure that the upper and lower holes are perpendicular, and control the error within ±0.5 mm. Assemble the prefabricated components on the assembly rack in sequence. During the assembly process, pay attention to the tightness and accuracy of the connection of each component to ensure the overall quality of the module.

[0044] Finished product protection measures: After the module assembly is completed, carry out finished product protection in a timely manner. First, carry out heat preservation treatment on the module, install identification plates, and indicate information such as module number, usage, installation location, etc. Then, wrap the module with plastic film three times in the non-interface area and fix it with plastic tape to prevent collision, scratching or other damage during transportation and storage.

[0045] Transfer to the stacking rack: Use the electric hoist and guide rail installed above the assembly rack to smoothly transfer the assembled module to the adjacent stacking rack. During the transfer process, pay attention to controlling the speed and direction to avoid the module from shaking or colliding.

[0046] Modular transportation operation: Forklift frame design and forklift preparation: Design and customize a general forklift frame according to the size and weight of the module. Select a suitable forklift and train the forklift driver to make him familiar with the forklift operation process and safety precautions. Install a shaking monitoring sensor on the forklift to monitor the shaking situation of the module during transportation in real time.

[0047] Forklift operation process control: Use the forklift to lift the module from the stacking rack and place it on the forklift frame to ensure that the module is placed stably. During the transportation process, the forklift driver adjusts the driving speed and direction according to the feedback information of the shaking monitoring sensor to keep the module stable. At the same time, arrange a special person to monitor beside to ensure transportation safety.

[0048] Place on the lifting platform: After the module is forklifted to the designated mobile lifting platform position, carefully place the module on the platform to ensure that the module is aligned with the platform and fix its position to prepare for the subsequent overall jacking construction.

[0049] Detailed steps of the overall jacking construction: Lifting platform preparation and calibration: Before construction, conduct a comprehensive inspection and commissioning of the mobile lifting platform to ensure that its positioning holes, infrared instruments, standard holes, and other related components are functioning properly. Move the lifting platform to the appropriate position, and use the positioning holes and infrared instruments to accurately calibrate it with the previous module to make the left, right, front, and back positions of the platform completely aligned with the module. During the calibration process, ensure the calibration accuracy is within the allowable range by finely adjusting the position of the lifting platform. After calibration, install channel steel fixing piles in the standard holes on both sides of the lifting platform to enhance the stability of the platform.

[0050] Module placement and fixation: Use a forklift to place the prefabricated module on the lifting platform steadily, ensuring that the module is placed in the center of the platform. Install four fixing piles on both sides of the module, and use belts to tightly bind the module to the fixing piles to ensure that the module will not move during the lifting process. Then, the forklift will fork the module again until it is close to the fixed positioning pile, and further check and confirm the fixing of the module to ensure that it is firmly and reliably fixed.

[0051] Lifting process operation: Start the hydraulic lifting devices of the two lifting platforms to link and lift the module upward. During the lifting process, set the lifting speed control between 0.5-1 m / min, and monitor the horizontal state of the platform in real time through the level sensor installed on the platform. When the lifting height reaches half of the target height, suspend the lifting and carefully observe the level of the platform. If the platform is found to be tilted or uneven, adjust the working state of the hydraulic lifting device in time to restore the platform to the level. After confirming that the platform is level, continue to slowly lift it to near the target height. When approaching the target height, use the fine-tuning device to fine-tune the height of the module to ensure that the module is at the same height as the previous module, and the height error is controlled within ±5 mm.

[0052] Module fine-tuning and assembly: After the height is determined, the lifting is stopped, and the construction personnel take the mobile operating platform to approach the module. Use the adjustment device on the mobile operating platform to fine-tune the module front and back and left and right to ensure that the front and rear module interfaces are tightly spliced. During the fine-tuning process, a laser locator can be used to assist the construction personnel in making precise adjustments to improve the splicing accuracy. After the interface splicing is completed, the construction personnel connect and fix the electromechanical pipelines in the module according to the construction drawings and technical requirements to complete the module assembly work.

[0053] Specific operations for connecting front and rear modules: Module position adjustment: When the module is lifted to the designated position, the construction personnel will quickly reach the designated position on the mobile operating platform. The position of the module is accurately adjusted through the movable platform of the lifting platform so that the interfaces of the front and rear modules are completely aligned. During the adjustment process, the construction personnel can refer to the markings on the module and the instructions of the laser locator to ensure the adjustment accuracy.

[0054] Interface splicing and bracket fixing: First, perform the interface splicing work, connect the interface parts of the front and rear modules according to the design requirements, and ensure that the connection is firm and reliable without leakage or looseness. Then, fix the bracket. When fixing the bracket, install the connecting plate and bolts according to the diagonal principle, and use a torque wrench to tighten the bolts according to the specified torque value to ensure that the bracket is firmly fixed. During the fixing process, record the tightening torque of each bolt to facilitate subsequent inspection and quality traceability.

[0055] Inspection and removal of the lifting platform: After the bracket is fixed, the construction personnel conduct a comprehensive inspection of the docking situation of the front and rear modules, including aspects such as the sealing of the interface connection, the firmness of the bracket fixation, and the smoothness of the pipeline. After the inspection is error-free, the lifting platform is removed, and the construction site is cleaned up to prepare for the jacking and docking work of the next module. During the entire construction process, the operation is carried out strictly in accordance with the construction specifications and safety operation procedures to ensure the construction quality and safety. At the same time, the data and information during the construction process are recorded and sorted out to provide a basis for subsequent project summary and quality evaluation.

[0056] In summary, by means of the above technical solutions of the present invention, through the combination of BIM modular design, modular segmentation and prefabricated production, and through the innovation of jacking equipment and precision control technology, the difficult problems of the construction of large-scale venue mechanical and electrical pipelines are effectively solved. By means of overall jacking, the interference of high-altitude cross operations is avoided, and the construction time is greatly shortened; the traditional problems are solved by using BIM design optimization and jacking precision control, and the quality problems are effectively reduced; modularization and prefabrication improve the material utilization rate and reduce rework waste, effectively reducing the labor cost and material waste rate; in terms of construction safety, overall jacking reduces high-altitude operations and avoids potential safety hazards, ensuring the early insertion of mechanical and electrical systems and the stability of the construction period, and effectively enhancing the comprehensive benefits of the construction.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for integral jacking construction of modular electromechanical pipelines in large venues, characterized in that: The following steps are involved: S1. BIM modular design: Use BIM forward design to establish a three-dimensional model of electromechanical pipelines, and use the collision detection function to identify and solve pipeline space conflicts; Optimize the layout of multi-professional pipelines and adjust the direction of at least 30% of the pipelines to improve space utilization; perform stress analysis on the combined bracket to control its maximum stress to not exceed 80% of the material yield strength; S2. Modular segmentation: Select the electromechanical pipelines in the concentrated area of ​​the basement computer room, and divide the pipelines into multiple independent modules according to the actual direction and equipment distribution. The length of each module is 5-8 meters. Use a total station to conduct multiple on-site measurements of complex node areas, and determine the optimal segmentation path after comparing the segmentation schemes. S3. Modular assembly and transportation: Assemble the modules in the prefabrication workshop, use a plumb line to check the verticality of the flange, and control the error within ±0.5 mm; after assembly, wrap the non-interface area of ​​the module with three layers of plastic film and fix it; use a forklift with a customized fork frame to transport the module, and install a sway monitoring sensor on the forklift to monitor the transportation stability in real time; S4. Overall lifting construction: Place the module on the mobile lifting platform, and use the positioning holes and infrared instrument to calibrate the positioning with the previous module; lift it to the target height at a rate of 0.5-1 m / min through the linkage hydraulic lifting device. During the lifting process, the levelness of the platform is monitored by the level sensor, and the lifting height error is controlled within ±5 mm; S5. Docking of front and rear modules: Construction personnel adjust the module interface position by moving the operating platform, fix the bracket connecting plate and bolts according to the diagonal principle, and tighten them according to the preset torque value using a torque wrench; after the splicing is completed, the lifting platform is removed to proceed to the next module construction.

2. According to claim 1, a large-scale venue modular electromechanical pipeline overall jacking construction method is characterized in that: In step S1: the collision detection function identifies and solves at least 200 pipeline collision problems; the stress analysis of the combined bracket is achieved through finite element simulation to ensure that the stress distribution meets the safety threshold.

3. According to claim 1, a large-scale venue modular electromechanical pipeline overall jacking construction method is characterized in that: In step S2: the number of segmentation modules is 15, and the total segmentation pipeline length is 50 meters; the segmentation plan of the complex node area is determined through more than three on-site retests.

4. According to claim 1, a large-scale venue modular electromechanical pipeline integral jacking construction method is characterized in that: In step S3: the module assembly is completed on a dedicated assembly rack, which is equipped with an electric hoist and guide rails for module transportation; the fork rack is transported by two forklifts working together, and the travel speed of the forklifts does not exceed 3 kilometers per hour.

5. According to claim 1, a large-scale venue modular electromechanical pipeline integral jacking construction method is characterized in that: In step S4: the mobile lifting platform is provided with channel steel fixing piles, and the module is tied to the fixing piles by belts; the lifting capacity of the hydraulic lifting device is 1.5 times the maximum weight of the module, and the base bearing capacity is 150% of the lifting weight.

6. The method for integral lifting construction of modular electromechanical pipelines in large venues according to claim 1 is characterized in that: In step S5: the mobile operating platform is equipped with a laser locator to assist in fine-tuning the interface; the preset torque value of the bolt is 30-50 N·m, with an error range of ±5%.

7. A system for the overall jacking construction method of modular electromechanical pipelines in a large venue as described in any one of claims 1 to 6, characterized in that: It includes BIM design module, modular segmentation measurement unit, modular assembly equipment, special lifting equipment group and forklift transportation components; The BIM design module: integrates Revit software and finite element analysis tools for pipeline optimization and support stress simulation; The modular segmentation measurement unit includes a total station and a three-dimensional scanner for complex node data collection; The modular assembly equipment includes an assembly rack, an electric hoist and a guide rail, which are used for prefabrication, assembly and transportation of modules; The special lifting equipment group includes a hydraulic lifting device, a bearing base and a fine-tuning platform, and the positioning accuracy of the fine-tuning platform is ±1 mm; The forklift transport component is equipped with a customized fork frame and a sway monitoring sensor, and the sampling frequency of the sensor is 100 Hz.

8. According to claim 7, a large-scale venue modular electromechanical pipeline integral jacking construction system is characterized in that: The bearing base is welded with Q355B steel and has anti-slip texture on the surface; the fine-tuning platform is equipped with a ball screw and a servo motor to achieve ±1 mm displacement control.

9. The large-scale stadium modular electromechanical pipeline integral jacking construction system according to claim 7 is characterized in that: It includes a mobile lifting platform for carrying modules and performing jacking operations and a mobile operating platform for construction workers to operate when docking and assembling modules. The mobile lifting platform includes positioning holes, infrared instruments and standard holes.

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