Construction method for quickly laying cable on basement bridge

Abstract

The invention discloses a construction method for quickly laying a cable on a basement bridge, relates to the technical field of cable laying, and aims to solve the problem that a traditional construction method for assembling the bridge section by section on site is difficult to meet engineering requirements. Cables, bridge accessories and construction tools are prepared, and technical disclosure and safety training are carried out on constructors; and S2, dividing the bridge frame into standard modules with a certain length, then carrying out field assembly through detachable connecting pieces based on the trend and length parameters surveyed in the step S1, and optimizing and selecting the optimal assembly efficiency through a calculation result of a formula # imgabs0 #. The cable laying device has the advantages that the cable laying construction is more efficient, and the requirements of large-scale cable laying engineering can be better met.

Description

Technical Field

[0001] The present invention relates to the technical field of cable laying, and more particularly to a construction method for quickly laying cables on a basement bridge. Background Art

[0002] Basement cable bridge installation refers to the construction process of laying cables in an orderly manner in the basement space of a building using metal or non-metal bridges as support and protection structures.

[0003] The existing technology involves cutting, drilling, installing, and securing cable trays on-site in short segments. This method requires construction workers to complete the processing and assembly of each segment on-site, then connect the segments together using bolts, clips, and other connectors to form a complete cable routing. However, with the increasing scale of cable installation in modern building basements, the traditional on-site segment-by-segment cable tray assembly method is no longer sufficient. To address this, we propose a construction method for rapid cable installation in basement cable trays. Summary of the Invention

[0004] The purpose of the present invention is to provide a construction method for quickly laying cables in a basement bridge, aiming to solve the problem that the traditional on-site construction method of assembling the bridge section by section can no longer meet engineering needs.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a construction method for quickly laying cables in a basement bridge, characterized in that the method comprises the following steps: S1. Conduct on-site survey of the basement to determine the direction, length, and specifications of the bridge. Prepare cables, bridge accessories, and construction tools accordingly, and provide technical briefings and safety training to construction personnel. S2, divide the bridge into standard modules of a certain length, and then assemble them on site through detachable connectors based on the direction and length parameters surveyed in step S1, and use the formula The calculation results are used to optimize the selection of the best assembly efficiency. In the formula, Single module pre-assembly is time-consuming, is the number of connectors, Installation of a single connector is time-consuming. is the total length of the bridge, is the standard module length; S3. Arrange and mark the cables on the modular bridge according to specifications and uses. Then calculate the sum of the product of the misalignment distance of each cable and the corresponding weight coefficient to obtain the chaos degree of the cables after arrangement. The chaos degree after pre-arrangement must not exceed the traditional value. The comparison formula is: , and then use this formula to guide the precise arrangement of cables and provide a tangle-free path for cable laying. In the formula, After pre-arrangement The misalignment distance of the cables relative to the standard position is measured with the bridge axis as the reference, and a steel tape measure is used to measure the vertical distance from the edge of the cable to the reference line. For the traditional arrangement The misalignment distance of the cables, the measurement method and Consistent, is the weight coefficient, determined according to the cable specifications, is the total number of cables in the bridge; S4, then use the electric traction device to lay the pre-arranged cables along the bridge, guided and monitored by a dedicated person; S5. Finally, use fixing clips to fix the laid cables on the bridge, then conduct acceptance inspection, check and organize the joints and markings to ensure that the cables are arranged neatly and the connections are reliable.

[0006] Preferably, in step S4, the traction force of the electric traction device is dynamically adjusted during the process of the electric traction device pulling the laying cable, and the adjusted traction force value is calculated according to the formula Calculation, formula, is the friction coefficient between the cable and the bridge, For cable quality, is the acceleration due to gravity, is the speed influence coefficient, is the traction speed.

[0007] Preferably, in the comparison formula of step S3, the weight coefficient According to the cable specifications, the weight coefficient value is 1.5 for cables with a cross-sectional area ≥ 100mm², and 1 for cables with a cross-sectional area < 100mm². and When measuring, use the bridge axis as the reference and use a steel tape measure to measure the vertical distance from the cable edge to the reference line.

[0008] Preferably, in the step S1, the basement environment is also checked to ensure that the site is safe and tidy, so as to prepare for the subsequent step S2. and The parameter values provide a stable environment to ensure the accuracy of the assembly time formula calculation.

[0009] Preferably, in step S3, the cable is marked with a fluorescent marking tape or a waterproof marking pen with waterproof and wear-resistant effects to ensure The value is measured accurately, reducing the deviation rate between the calculated value of the disorder and the actual detection value.

[0010] Preferably, in step S5, the acceptance further includes performing an insulation test on the cable after the cable is fixed to verify the insulation performance of the cable.

[0011] Preferably, in the step S5, it also includes acceptance of the assembly time compliance rate, the chaos qualification rate, and the traction control accuracy, and the calculation records and test reports of each formula need to be submitted during the acceptance.

[0012] Preferably, in step S3, when the cables are pre-arranged, cables of different specifications need to be arranged in zones, with cables with a cross-sectional area ≥ 100 mm² arranged on the inner side of the bridge and cables with a cross-sectional area < 100 mm² arranged on the outer side of the bridge, so as to reduce the impact of the misalignment distance of large-specification cables on the degree of disorder.

[0013] Preferably, the construction tools in step S1 include a laser rangefinder, a torque wrench, and a cable pay-off stand to ensure the accuracy of the survey data and the installation torque.

[0014] Preferably, the cable needs to be pretreated before the insulation test, including wiping the cable connector with anhydrous ethanol to remove surface stains to ensure the effectiveness of the test.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention divides the bridge into standard modules, assembles them on site through detachable connectors and uses the formula The calculation results are used to optimize the selection of the best assembly efficiency. In the formula, Single module pre-assembly is time-consuming, is the number of connectors, Installation of a single connector is time-consuming. is the total length of the bridge, With standard module length, this assembly method reduces on-site processing steps, makes construction more efficient, and can better meet the needs of large-scale cable laying projects.

[0016] 2. In the present invention, the degree of disorder is obtained by calculating the sum of the product of the misalignment distance of each cable and the corresponding weight coefficient, and the degree of disorder after pre-arrangement is required not to exceed the traditional value. At the same time, cables of different specifications are arranged in zones, with large-specification cables arranged on the inside and small-specification cables arranged on the outside. Waterproof and wear-resistant fluorescent marking tapes or markers are also used to mark the cables. These measures ensure that the cables are arranged neatly, provide a tangle-free path for laying, and avoid affecting the construction progress and subsequent maintenance due to cable entanglement.

[0017] 3. In the present invention, the cable is pulled by an electric traction device. During the process of pulling the cable by the electric traction device, according to the formula Calculation, formula, is the friction coefficient between the cable and the bridge, For cable quality, is the acceleration due to gravity, is the speed influence coefficient, For traction speed, this adjustment method can accurately control the traction force according to actual conditions, avoiding excessive traction force causing cable damage or too little traction force affecting laying efficiency, ensuring safety and stability during cable laying.

[0018] 4. The acceptance process in the present invention not only checks the neatness of cable arrangement and connection reliability, but also includes insulation testing to verify the insulation performance of the cable. At the same time, it uses the assembly time compliance rate, chaos qualification rate, and traction control accuracy as indicators, and requires the submission of calculation records and test reports of various formulas. It controls the construction quality from multiple dimensions, ensures the quality of the basement bridge cable laying project, and lays the foundation for the normal operation of subsequent cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic flow chart of the construction method of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Example 1 A construction method for quickly laying cables in a basement bridge, characterized in that the method comprises the following steps: S1. Conduct on-site survey of the basement to determine the direction, length, and specifications of the bridge. Prepare cables, bridge accessories, and construction tools accordingly, and provide technical briefings and safety training to construction personnel. S2, divide the bridge into standard modules of a certain length, and then assemble them on site through detachable connectors based on the direction and length parameters surveyed in step S1, and use the formula The calculation results are used to optimize the selection of the best assembly efficiency. In the formula, Single module pre-assembly is time-consuming, is the number of connectors, Installation of a single connector is time-consuming. is the total length of the bridge, is the standard module length; S3. Arrange and mark the cables on the modular bridge according to specifications and uses. Then calculate the sum of the product of the misalignment distance of each cable and the corresponding weight coefficient to obtain the chaos degree of the cables after arrangement. The chaos degree after pre-arrangement must not exceed the traditional value. The comparison formula is: , and then use this formula to guide the precise arrangement of cables and provide a tangle-free path for cable laying. In the formula, After pre-arrangement The misalignment distance of the cables relative to the standard position is measured with the bridge axis as the reference, and a steel tape measure is used to measure the vertical distance from the edge of the cable to the reference line. For the traditional arrangement The misalignment distance of the cables, the measurement method and Consistent, is the weight coefficient, determined according to the cable specifications, is the total number of cables in the bridge; S4, then use the electric traction device to lay the pre-arranged cables along the bridge, guided and monitored by a dedicated person; S5. Finally, use fixing clips to fix the laid cables on the bridge, then conduct acceptance inspection, check and organize the joints and markings to ensure that the cables are arranged neatly and the connections are reliable.

[0022] In step S4, during the process of the electric traction device pulling the laying cable, the traction force of the electric traction device is dynamically adjusted, and the adjusted traction force value is calculated according to the formula Calculation, formula, is the friction coefficient between the cable and the bridge, For cable quality, is the acceleration due to gravity, is the speed influence coefficient, is the traction speed.

[0023] In the comparison formula of step S3, the weight coefficient According to the cable specifications, the weight coefficient value is 1.5 for cables with a cross-sectional area ≥ 100mm², and 1 for cables with a cross-sectional area < 100mm². and When measuring, use the bridge axis as the reference and use a steel tape measure to measure the vertical distance from the cable edge to the reference line.

[0024] In step S1, the basement environment is also checked to ensure that the site is safe and tidy, which is the basis for the subsequent step S2. and The parameter values provide a stable environment to ensure the accuracy of the assembly time formula calculation.

[0025] In step S3, the cable is marked with a waterproof and wear-resistant fluorescent marking tape or a waterproof marking pen to ensure The value is measured accurately, reducing the deviation rate between the calculated value of the disorder and the actual detection value.

[0026] In step S5, the acceptance further includes performing an insulation test on the cable after the cable is fixed to verify the insulation performance of the cable.

[0027] In step S5, the acceptance of the assembly time compliance rate, the chaos qualification rate, and the traction control accuracy is also included, and the calculation records and test reports of each formula must be submitted during the acceptance.

[0028] In step S3, when pre-arranging the cables, cables of different specifications need to be arranged in zones. Cables with a cross-sectional area ≥ 100 mm² are arranged on the inner side of the bridge, and cables with a cross-sectional area < 100 mm² are arranged on the outer side of the bridge, so as to reduce the impact of the misalignment distance of large-sized cables on the degree of disorder.

[0029] The construction tools in step S1 include a laser rangefinder, a torque wrench, and a cable pay-out stand to ensure the accuracy of the survey data and the installation torque.

[0030] The cable needs to be pre-treated before the insulation test, including wiping the cable connector with anhydrous ethanol to remove surface stains to ensure the effectiveness of the test.

[0031] Specifically, by determining the direction, length, and specifications of the bridge through on-site surveys, the construction route can be accurately planned to avoid material waste and rework caused by inaccurate parameters. Cables, bridge accessories, and construction tools are fully prepared to provide material support for subsequent construction. Technical briefings and safety training are conducted for construction personnel to ensure that they are familiar with process requirements and safety regulations, thereby improving construction quality and safety. The basement environment is inspected and ensured to be safe and tidy, providing a stable environment for subsequent assembly time calculations and ensuring the accuracy of parameter values. The bridge is then divided into standard modules and assembled on-site through detachable connectors, which greatly reduces on-site processing workload and improves construction efficiency. The calculation results of the optimization assembly efficiency are as follows: Single module pre-assembly is time-consuming, is the number of connectors, Installation of a single connector is time-consuming. is the total length of the bridge, For standard module length, the best assembly plan can be calculated based on the total length, module length, single module pre-assembly time and number of connectors, so as to reasonably arrange the construction time and shorten the overall construction period. Then arrange the cables according to specifications and uses and mark them to make cable laying more orderly and facilitate subsequent management and maintenance; calculate the chaos degree formula , guide the precise arrangement of cables, ensure that the degree of chaos after pre-arrangement does not exceed the traditional value, avoid cable entanglement, and provide a smooth path for cable laying. In the formula, After pre-arrangement The misalignment distance of the cables relative to the standard position is measured with the bridge axis as the reference, and a steel tape measure is used to measure the vertical distance from the edge of the cable to the reference line. For the traditional arrangement The misalignment distance of the cables, the measurement method and Consistent, is the weight coefficient, determined according to the cable specifications, is the total number of cables in the bridge, and in the formula, the cables with a cross-sectional area ≥ 100mm², 1.5, the cross-sectional area of the cable is less than 100mm², At the same time, cables of different specifications need to be arranged in different areas. Cables with a cross-sectional area of ≥100mm² are arranged on the inside of the bridge, and cables with a cross-sectional area of <100mm² are arranged on the outside of the bridge, so as to reduce the impact of the misalignment distance of large-sized cables on the disorder degree and further improve the rationality of the arrangement. Waterproof and wear-resistant fluorescent marking tape or waterproof marker pen is used to mark the cables to ensure the accuracy of the misalignment distance measurement and reduce the deviation rate between the calculated disorder degree value and the actual detection value. Then use the electric traction device to lay the cable along the bridge, which is more efficient and labor-saving than manual laying, and can speed up the construction progress; a dedicated person guides and monitors the traction process, and according to the formula Calculate the dynamic adjustment traction, the formula is: is the friction coefficient between the cable and the bridge, For cable quality, is the acceleration due to gravity, is the speed influence coefficient, To ensure the appropriate pulling force for the traction speed, it can avoid damaging the cable due to excessive pulling force or causing difficulty in laying due to too little pulling force, thus ensuring the safety and reliability of cable laying; Finally, the cables are fixed to the bridge with fixing clips to prevent them from loosening or shifting, ensuring that they are neatly arranged and reliably connected. During acceptance, the joints and markings are checked and organized to ensure that the construction details meet the requirements, and insulation tests are performed to verify the insulation performance of the cables and ensure the safety of power transmission. At the same time, the acceptance also includes the assembly time compliance rate, the chaos qualification rate, the traction control accuracy, and requires the submission of calculation records and test reports of various formulas. The construction quality is strictly controlled from multiple dimensions to ensure that the entire construction process meets technical standards and engineering requirements.

[0032] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A construction method for quickly laying cables in a basement bridge, characterized in that: The method comprises the following steps: S1. Conduct on-site survey of the basement to determine the direction, length, and specifications of the bridge. Prepare cables, bridge accessories, and construction tools accordingly, and provide technical briefings and safety training to construction personnel. S2, divide the bridge into standard modules with the same length, and then assemble them on site through detachable connectors based on the direction and length parameters surveyed in step S1, and use the formula The calculation results are used to optimize the selection of the best assembly efficiency. In the formula, Single module pre-assembly is time-consuming, is the number of connectors, Installation of a single connector is time-consuming. is the total length of the bridge, is the standard module length; S3. Arrange and mark the cables on the modular bridge according to specifications and uses. Then calculate the sum of the product of the misalignment distance of each cable and the corresponding weight coefficient to obtain the chaos degree of the cables after arrangement. The chaos degree after pre-arrangement must not exceed the traditional value. The comparison formula is: , and then use this formula to guide the precise arrangement of cables and provide a tangle-free path for cable laying. In the formula, After pre-arrangement The misalignment distance of the cables relative to the standard position is measured with the bridge axis as the reference, and a steel tape measure is used to measure the vertical distance from the edge of the cable to the reference line. For the traditional arrangement The misalignment distance of the cables, the measurement method and Consistent, is the weight coefficient, determined according to the cable specifications, is the total number of cables in the bridge; S4, then use the electric traction device to lay the pre-arranged cables along the bridge, guided and monitored by a dedicated person; S5. Finally, use fixing clips to fix the laid cables on the bridge, then conduct acceptance inspection, check and organize the joints and markings to ensure that the cables are arranged neatly and the connections are reliable.

2. A construction method for rapid cable laying in a basement bridge according to claim 1, characterized in that: In step S4, during the process of the electric traction device pulling the laying cable, the traction force of the electric traction device is dynamically adjusted, and the adjusted traction force value is calculated according to the formula Calculation, formula, is the friction coefficient between the cable and the bridge, For cable quality, is the acceleration due to gravity, is the speed influence coefficient, is the traction speed.

3. The construction method for rapid cable laying in a basement bridge according to claim 1 is characterized in that: In the comparison formula of step S3, the weight coefficient According to the cable specifications, the weight coefficient value is 1.5 for cables with a cross-sectional area ≥ 100mm², and 1 for cables with a cross-sectional area < 100mm². and When measuring, use the bridge axis as the reference and use a steel tape measure to measure the vertical distance from the cable edge to the reference line.

4. The construction method for rapid cable laying in a basement bridge according to claim 1 is characterized in that: In the step S1, the basement environment is also checked to ensure that the site is safe and tidy, which is a preparation for the subsequent step S2. and The parameter values provide a stable environment to ensure the accuracy of the assembly time formula calculation.

5. The construction method for rapid cable laying in a basement bridge according to claim 1 is characterized in that: In step S3, the cable is marked with a fluorescent marking tape or a waterproof marking pen with waterproof and wear-resistant effects to ensure The value is measured accurately, reducing the deviation rate between the calculated value of the disorder and the actual detection value.

6. The construction method for rapid cable laying in a basement bridge according to claim 1 is characterized in that: In step S5, the acceptance further includes performing an insulation test on the cable after the cable is fixed to verify the insulation performance of the cable.

7. The construction method for rapid cable laying in a basement bridge according to claim 1 is characterized in that: In the step S5, the acceptance of the assembly time compliance rate, the chaos qualification rate, and the traction control accuracy is also included, and the calculation records and test reports of each formula need to be submitted during the acceptance.

8. The construction method for rapid cable laying in a basement bridge according to claim 1 is characterized in that: In step S3, when the cables are pre-arranged, cables of different specifications need to be arranged in zones, with cables with a cross-sectional area ≥ 100 mm² arranged on the inside of the bridge, and cables with a cross-sectional area < 100 mm² arranged on the outside of the bridge, so as to reduce the impact of the misalignment distance of large-specification cables on the degree of disorder.

9. The construction method for rapid cable laying in a basement bridge according to claim 1, characterized in that: The construction tools in step S1 include a laser rangefinder, a torque wrench, and a cable pay-off stand to ensure the accuracy of the survey data and the installation torque.

10. A construction method for rapid cable laying in a basement bridge according to claim 6, characterized in that: The cable needs to be pre-treated before the insulation test, including wiping the cable connector with anhydrous ethanol to remove surface stains to ensure the effectiveness of the test.

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