Concrete pouring control system applied to bearing platform construction

Abstract

The invention discloses a concrete pouring control system applied to bearing platform construction, and relates to the technical field of pouring control. The system comprises a coordinate system construction module, a first section pouring measurement module, a position calculation and deformation compensation module, a multi-section pouring monitoring module, a construction quality verification and adjustment module and a bearing platform construction quality inspection module. The working process comprises the following steps: constructing a coordinate system, considering the shape and size difference of the bearing platform, and quickly positioning by using portable measuring equipment; the first section pouring measurement ensures the data accuracy; a compensation mechanism is introduced into position calculation and deformation compensation; accurate control is achieved through multi-section pouring monitoring; construction quality verification and adjustment ensure that the bearing platform position is accurate; carrying out bearing platform construction quality inspection to inspect whether a bearing platform meets design requirements or not; and processing and analyzing measured data in real time, monitoring construction quality and progress, and adjusting construction parameters. According to the method, the precision and efficiency of bearing platform construction are improved, the construction risk is reduced, powerful support is provided for follow-up consulting and tracing, and the quality and progress of bearing platform construction are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of pouring control, and in particular relates to a concrete pouring control system applied to cap construction. Background Art

[0002] The cap is the basic part of a structure such as a building or bridge, carrying the weight of the superstructure and transferring it to the foundation. The construction quality of the cap is directly related to the safety and stability of the entire project. Traditional cap construction methods mainly rely on manual measurement and experience judgment, which have problems such as low accuracy, low efficiency, and easy errors. Especially in large and complex structures, traditional methods are difficult to meet high precision requirements.

[0003] As modern construction projects become larger and more complex, higher requirements are placed on the accuracy and efficiency of foundation cap construction. In order to ensure that the geometry, size and position of the foundation cap meet the design requirements, advanced measurement technology and automated control systems must be introduced to achieve precise control of the foundation cap construction process.

[0004] In order to solve the above problems, there is an urgent need for a new control system that can improve the accuracy, efficiency and safety of foundation construction.

[0005] The present invention aims to solve the deficiencies in the prior art and provide a high-precision, efficient and intelligent cap construction control system. The system achieves precise control of the entire cap construction process by introducing advanced measurement technology, automated control means and intelligent data analysis methods, ensuring that the geometric shape, size and position of the cap meet the design requirements, thereby improving construction efficiency and engineering quality. Summary of the invention

[0006] In order to overcome the shortcomings and deficiencies of the above-mentioned prior art, the present invention adopts the following technical solutions:

[0007] A concrete pouring control system used in cap construction, comprising:

[0008] Coordinate system construction module: clarify the method of establishing the local coordinate system, determine the origin position, and define the direction of the coordinate axis; consider the differences in the shape and size of the platform and choose the appropriate method of establishing the coordinate system; use portable measuring equipment for rapid positioning in complex environments;

[0009] The first section pouring measurement module: clarify the concrete mix ratio, pouring speed, vibration method and maintenance measures; calibrate the measurement robot before each use, and use the total station for secondary verification when collecting the cast-in-place position;

[0010] Position calculation and deformation compensation module: establish a transition coordinate system, clarify the origin position and coordinate axis direction, and use it to describe the relative position of the first segment cap; provide the conversion matrix formula and calculation steps from the local coordinate system to the transition coordinate system, consider the deformation and displacement of the cap during the construction process, and introduce a compensation mechanism to ensure the accuracy of the calculation results;

[0011] Multi-segment pouring monitoring module: determine the pouring sequence and interval time of each segment cap; select and arrange control measurement points, monitor the position and posture of the cap in real time, and make dynamic adjustments;

[0012] Construction quality verification and adjustment module: collect the cast-in-place position of the current segment cap and compare it with the theoretical matching position to check the position deviation, geometric shape and size deviation; adjust the constraint conditions and weight coefficients according to the verification results to ensure that the final position of the cap is accurate; establish a risk early warning mechanism, monitor the construction progress and quality in real time, and take countermeasures;

[0013] Cap construction quality inspection module: After the casting and installation of all segment caps are completed, check whether the geometry, size and position of the entire cap meet the design requirements, including overall size, geometry, surface quality and internal structure; output the final results and organize and archive all data during the construction process.

[0014] Preferably, the system workflow is as follows:

[0015] Step 1: Establish a local coordinate system, determine the origin position and coordinate axis direction, and use measuring equipment to perform precise measurements to ensure the accuracy of the coordinate system;

[0016] Step 2: Cast the first section of the cap, clarify the process of concrete pouring, and add calibration and verification steps for the measuring robot during the pouring process to ensure the accuracy of the measurement data; the selection of concrete mix ratio, control of pouring speed, use of vibration method and implementation of maintenance measures are all carried out according to the design requirements to ensure the working performance and durability of the concrete;

[0017] Step 3: Calculate the theoretical installation position and matching position of the first segment cap, establish a transition coordinate system, and perform coordinate transformation. Meanwhile, consider the deformation and displacement of the cap during the construction process, and introduce a compensation mechanism for correction.

[0018] Step 4: Cast the remaining segment caps in sequence, clarify the casting order and interval time of each segment cap, select and arrange control measurement points, realize precise control of cap movement and positioning, and make dynamic adjustments;

[0019] Step 5: After each pouring is completed, use the measurement robot to collect the cast-in-place position of the control measurement point of the current segment cap in the local coordinate system, and compare it with the theoretical matching position for verification and adjustment, including adjusting the constraint conditions and weight coefficients, and establishing risk warnings and response measures;

[0020] Step 6. After the casting and installation of all segmental caps are completed, check whether the geometry, size and position of the entire cap meet the design requirements, output the final results, and organize and archive all data during the construction process.

[0021] Preferably, step one is as follows:

[0022] S11. Clarify the method of establishing the local coordinate system;

[0023] Determine the origin: establish a local coordinate system at the fixed end formwork in the construction area of ​​the cap, and take the intersection of the fixed end formwork and the cap template and the center line of the cap top surface as the origin of the coordinate system; the coordinate axis directions include the positive direction of the X axis, the positive direction of the Y axis, and the positive direction of the Z axis;

[0024] Positive direction of X axis: along the center line of the top surface of the pedestal, pointing to the direction of the matching end mold;

[0025] Positive direction of Y axis: determined according to the right-hand rule, the thumb of the right hand points to the positive direction of the X axis, the index finger points to the positive direction of the Z axis, and the middle finger points to the positive direction of the Y axis;

[0026] Positive direction of Z axis: vertically upward, pointing to the sky;

[0027] Name the coordinate system as local coordinate system A, and clearly mark its origin position and coordinate axis direction in the construction records;

[0028] Use a total station or laser rangefinder to perform precise measurements to ensure the accuracy of the coordinate system. All measurement data are recorded in the construction log, including the origin coordinates and the angle information of the coordinate axis direction;

[0029] S12. Consider differences in the shapes and sizes of the abutments;

[0030] Adjust the way to establish the coordinate system: For platforms of different shapes and sizes, adjust the way to establish the local coordinate system, including selecting multiple reference points to define the coordinate system for platforms of irregular shapes to ensure that the position information of each measuring point is accurate;

[0031] Adaptability to construction environment: In complex construction environments including deep foundation pits and narrow spaces, portable measuring equipment is used for rapid positioning to ensure that the establishment of the coordinate system is not restricted by the environment.

[0032] Preferably, in step 3, the specific formula and calculation steps of coordinate transformation include determination of the transformation matrix from the local coordinate system to the transition coordinate system, and calculation of the rotation matrix and the translation vector, while considering the deformation and displacement of the cap during the construction process, introducing a compensation matrix for correction, as follows:

[0033] S31. Clarify the method for establishing the transition coordinate system;

[0034] Determine the origin: Take the intersection of the matching end form of the first segment cap and the cap template and the intersection of the center line of the cap top surface as the origin, and establish the transition coordinate system of the first segment cap; name the coordinate system as transition coordinate system B, and clearly mark its origin position and coordinate axis direction in the construction record; the coordinate axis direction includes the positive direction of the X axis, the positive direction of the Y axis, and the positive direction of the Z axis;

[0035] Positive direction of X axis: along the center line of the top surface of the pedestal, pointing to the direction of the fixed end mold;

[0036] Positive direction of Y axis: determined according to the right-hand rule;

[0037] Positive direction of Z axis: vertically upward, pointing to the sky;

[0038] S32, specific formula and calculation steps for coordinate conversion;

[0039] Transformation matrix from local coordinate system to transition coordinate system: Let the local coordinate system be A and the transition coordinate system be B, then point P in the local coordinate system A =(x A ,y A ,z A ) in the transition coordinate system B =(x B ,y B ,z B ) is converted using the following formula:

[0040] P B =T AB ·P A ;

[0041] Among them, T AB is the transformation matrix from the local coordinate system A to the transition coordinate system B, and its specific form is as follows:

[0042]

[0043] The rotation matrix R represents the rotation relationship between the local coordinate system A and the transition coordinate system B, which can be calculated by the direction vectors of the two coordinate systems; let u A 、v A 、w A are the X, Y, and Z axis direction vectors of the local coordinate system A; uB 、v B 、w B are the X, Y, and Z axis direction vectors of the local coordinate system B respectively; the rotation matrix R is expressed as:

[0044]

[0045] The translation vector t represents the coordinates of the origin of the local coordinate system A in the transition coordinate system B, which is calculated using known geometric relationships;

[0046] S33. Consider the deformation and displacement of the cap during construction;

[0047] Deformation monitoring: Install displacement sensors or strain gauges on the bearing platform to monitor the deformation of the bearing platform in real time; when the deformation exceeds the allowable threshold range, make corrections;

[0048] Compensation mechanism: Adjust the coordinate transformation matrix T according to the deformation monitoring data AB To ensure the accuracy of the calculation results, a compensation factor Δ is introduced to correct the coordinate transformation formula:

[0049] P B =(T AB +Δ)·P A ;

[0050] Among them, Δ is the compensation matrix calculated based on the deformation monitoring data.

[0051] Preferably, in step 4, the control measuring points are selected and arranged reasonably according to the shape and size of the foundation to ensure full coverage of the key areas of the foundation, and high-precision positioning equipment is used for real-time monitoring and adjustment during the movement of the foundation.

[0052] Preferably, the main contents verified in step five include position deviation, geometric shape, and size deviation. The adjustment methods include adjusting constraints, adjusting weight coefficients, and establishing a risk warning mechanism to monitor construction progress and quality in real time, identify problems in a timely manner, and take corresponding countermeasures.

[0053] Preferably, the inspection contents in step six include overall dimensions, geometric shape, surface quality, and internal structure, and non-destructive testing technology is used to inspect the internal structure of the foundation to ensure that the position and quantity of the steel bars and embedded components meet the design requirements.

[0054] Preferably, the method also includes real-time processing and analysis of the measurement data during the construction process to monitor the construction quality and progress of the foundation, and adjusting the construction parameters or taking corrective measures based on the analysis results.

[0055] Preferably, the measurement data processed and analyzed in real time include the position, size, deformation, concrete pouring speed, and vibration frequency of the foundation, and the adjusted construction parameters include concrete mix ratio, pouring speed, vibration method, and curing conditions.

[0056] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0057] 1. The present invention realizes precise control of the entire process of foundation construction by introducing advanced measurement technology, automated control means and intelligent data analysis methods, thereby achieving the purpose of improving the precision and quality of foundation construction, improving construction efficiency, reducing construction costs, and enhancing the controllability and safety of the construction process.

[0058] 2. The present invention establishes a local coordinate system and a transition coordinate system, and introduces a coordinate conversion matrix, a rotation matrix and a translation vector to ensure that the position information of each control measuring point is accurate. Especially in the construction of a pile cap with complex shapes and sizes, the system can adjust the establishment method of the coordinate system according to the actual situation to ensure that the position information of each measuring point is accurate.

[0059] 3. During the construction of the foundation, the present invention monitors the deformation of the foundation in real time by installing displacement sensors or strain gauges. When the deformation exceeds the allowable range, the system automatically adjusts the coordinate conversion matrix and introduces compensation factors for correction to ensure the accuracy of the calculation results. This real-time monitoring and compensation mechanism effectively solves the deformation problem that is difficult to control in traditional construction and improves the construction accuracy of the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0061] Figure 1 A module diagram of a concrete pouring control system applied to cap construction of the present invention is shown;

[0062] Figure 2 The working flow chart of the system of the present invention is shown;

[0063] Figure 3 A flow chart of calculating the theoretical installation position and matching position of the first segment bearing platform of the present invention is shown. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] In addition, the described features, structures or characteristics may be combined in one or more example embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the example embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, steps, etc. may be adopted. In other cases, well-known structures, methods, implementations or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0066] Embodiment 1:

[0067] See also Figure 1 As shown, a concrete pouring control system applied to cap construction in this embodiment includes

[0068] Coordinate system construction module: clarify the method of establishing the local coordinate system, determine the origin position, and define the direction of the coordinate axis; consider the differences in the shape and size of the platform and choose the appropriate method of establishing the coordinate system; use portable measuring equipment for rapid positioning in complex environments.

[0069] The first section pouring measurement module: clarify the concrete mix ratio, pouring speed, vibration method and maintenance measures; calibrate the measuring robot before each use, and use the total station for secondary verification when collecting the cast-in-place position to ensure the accuracy of the measurement data.

[0070] Position calculation and deformation compensation module: establish a transition coordinate system, clarify the origin position and coordinate axis direction, and use it to describe the relative position of the first segment cap; provide the conversion matrix formula and calculation steps from the local coordinate system to the transition coordinate system, consider the deformation and displacement of the cap during the construction process, and introduce a compensation mechanism to ensure the accuracy of the calculation results.

[0071] Multi-segment pouring monitoring module: determine the pouring sequence and interval time of each segment cap; select and arrange control measurement points, monitor the position and posture of the cap in real time, and make dynamic adjustments.

[0072] Construction quality verification and adjustment module: Use the measuring robot to collect the cast-in-place position of the current segment cap and compare it with the theoretical matching position to check the position deviation, geometric shape and size deviation; adjust the constraint conditions and weight coefficients according to the verification results to ensure that the final position of the cap is accurate; establish a risk warning mechanism, monitor the construction progress and quality in real time, and take countermeasures.

[0073] Cap construction quality inspection module: After the casting and installation of all segment caps are completed, check whether the geometry, size and position of the entire cap meet the design requirements, including overall size, geometry, surface quality and internal structure; output the final results, and organize and archive all data during the construction process for subsequent review and traceability.

[0074] The beneficial effects of this embodiment are: improving the accuracy and efficiency of the foundation construction and ensuring the accuracy of the foundation position; reducing construction risks through real-time monitoring and adjustment; at the same time, organizing and archiving the construction process data for subsequent review and tracing, providing strong support for the quality control of the foundation construction.

[0075] Embodiment 2:

[0076] See also Figure 2 As shown, a concrete pouring control system applied to cap construction in this embodiment has the following working process:

[0077] Step 1: Establish a local coordinate system.

[0078] S11. Clarify the method of establishing the local coordinate system.

[0079] Determine the origin: Establish a local coordinate system at the fixed end formwork in the cap construction area. The intersection of the fixed end formwork and the cap template and the center line of the cap top surface is taken as the origin of the coordinate system.

[0080] The coordinate axis directions include the positive direction of the X axis, the positive direction of the Y axis, and the positive direction of the Z axis.

[0081] Positive direction of X axis: along the center line of the top surface of the pedestal, pointing to the direction of the matching end mold.

[0082] Positive direction of Y axis: determined according to the right-hand rule, that is, the thumb of the right hand points to the positive direction of the X axis, the index finger points to the positive direction of the Z axis, and the middle finger points to the positive direction of the Y axis.

[0083] Positive direction of the Z axis: vertically upward, pointing to the sky.

[0084] Name the coordinate system local coordinate system A, and clearly mark its origin position and coordinate axis direction in the construction records.

[0085] Use a total station or laser rangefinder to perform precise measurements to ensure the accuracy of the coordinate system. All measurement data should be recorded in the construction log, including information such as the origin coordinates and the angle of the coordinate axis direction.

[0086] S12. Consider differences in abutment shapes and sizes.

[0087] Adjust the way the coordinate system is established: For caps of different shapes and sizes, you may need to adjust the way the local coordinate system is established. For example, for caps of irregular shapes, you can select multiple reference points to define the coordinate system to ensure that the position information of each measuring point is accurate.

[0088] Adaptability to construction environment: In complex construction environments (such as deep foundation pits and narrow spaces), portable measuring equipment (such as handheld laser scanners) can be used for rapid positioning to ensure that the establishment of the coordinate system is not restricted by the environment.

[0089] Step 2: Cast the first section foundation and measure the cast-in-place position.

[0090] S21. Clarify the process flow of concrete pouring.

[0091] Concrete mix ratio: Select the appropriate concrete mix ratio according to the design requirements. Conduct trial mix tests to optimize the ratio of cement, sand, water and admixtures to ensure the working performance and durability of the concrete.

[0092] Pouring speed: Control the pouring speed of concrete to avoid being too fast or too slow. For large-volume caps, it is recommended to use layered pouring, with each layer thickness controlled between 30-50cm to reduce heat accumulation.

[0093] Vibration method: Use an inserted vibrator to vibrate to ensure the density of the concrete. The vibration time should be adjusted according to the slump of the concrete and the pouring thickness. Usually, each vibration time is 10-30 seconds to avoid over-vibration or under-vibration.

[0094] Maintenance measures: After pouring, immediately carry out moisturizing maintenance to prevent cracking of the concrete surface. You can use plastic film to cover or spray curing agent to keep the concrete surface moist.

[0095] S22. Add calibration and verification steps for the measuring robot.

[0096] Robot calibration: Before using the measuring robot each time, perform calibration. You can use standard points with known positions to ensure the robot's measurement accuracy. After calibration, record the calibration results and save them in the calibration log.

[0097] Verify the measurement data: When collecting the cast-in-place position of the first segment cap, use a total station or other high-precision measuring equipment for secondary verification to ensure the accuracy of the measurement data. If the deviation is found to exceed the allowable range, immediately adjust the measurement robot or re-collect the data.

[0098] Step 3: Calculate the theoretical installation position and matching position of the first segment cap.

[0099] See also Figure 3 As shown in the figure, the specific process of calculating the theoretical installation position and matching position of the first segment cap is as follows:

[0100] S31. Clarify the method of establishing the transition coordinate system.

[0101] Determine the origin: Take the intersection of the matching end mold of the first segment abutment and the abutment template and the center line of the top surface of the abutment as the origin to establish the transition coordinate system of the first segment abutment.

[0102] Coordinate axis direction:

[0103] Positive direction of X axis: along the center line of the top surface of the pedestal, pointing to the direction of the fixed end mold.

[0104] Positive direction of the Z axis: vertically upward, pointing to the sky.

[0105] Positive direction of Y axis: determined according to the right-hand rule.

[0106] Coordinate system naming: Name the coordinate system "transition coordinate system B" and clearly mark its origin position and coordinate axis direction in the construction records.

[0107] S32. Specific formula and calculation steps for coordinate transformation.

[0108] Transformation matrix from local coordinate system to transition coordinate system: Assuming the local coordinate system is A and the transition coordinate system is B, then point P in the local coordinate system A =(x A ,y A ,z A ) in the transition coordinate system B =(x B ,y B ,z B ) can be converted by the following formula:

[0109] P B =T AB ·P A ;

[0110] Among them, T AB is the transformation matrix from the local coordinate system A to the transition coordinate system B, and its specific form is as follows:

[0111]

[0112] Rotation matrix R: represents the rotation relationship between the local coordinate system A and the transition coordinate system B, which can be calculated by the direction vectors of the two coordinate systems. Assume u A 、v A 、w A are the X, Y, and Z axis direction vectors of the local coordinate system A; u B 、v B 、w B are the X, Y, and Z axis direction vectors of the local coordinate system B respectively; then the rotation matrix R can be expressed as:

[0113]

[0114] Translation vector t: represents the coordinates of the origin of the local coordinate system A in the transition coordinate system B, which can be calculated using known geometric relationships.

[0115] S33. Consider the deformation and displacement of the foundation during construction.

[0116] Deformation monitoring: During the construction of the foundation, slight deformation or displacement may occur. In order to ensure the accuracy of the calculation, displacement sensors or strain gauges can be installed on the foundation to monitor the deformation of the foundation in real time. When the deformation exceeds the allowable range, corrections can be made in a timely manner.

[0117] Compensation mechanism: Adjust the coordinate transformation matrix T according to the deformation monitoring data AB , to ensure the accuracy of the calculation results. The coordinate transformation formula can be corrected by introducing a compensation factor Δ:

[0118] P B =(T AB +Δ)·P A ;

[0119] Among them, Δ is the compensation matrix calculated based on the deformation monitoring data.

[0120] Step 4: Cast the remaining segment caps in sequence and measure the cast-in-place positions of the control points

[0121] S41. Clarify the pouring sequence and interval time of each segment foundation.

[0122] Casting sequence: Determine the casting sequence of each segment of the cap according to the design requirements of the cap. Usually, cast the bottom segment first, and then cast upward layer by layer. For complex cap structures, the casting sequence can be adjusted according to actual conditions to ensure the safety and efficiency of construction.

[0123] Interval time: In order to ensure the strength development and curing effect of concrete, the pouring time of adjacent sections should be kept at an appropriate interval. It is recommended to wait at least 24 hours after pouring each section before pouring the next section.

[0124] S42. Control the selection and arrangement of measuring points.

[0125] Measuring point selection: Select key control measuring points on each segment cap, such as template edges, steel bar nodes, embedded parts, etc. These measuring points should be able to reflect the geometric shape and size changes of the cap.

[0126] Measurement point arrangement: According to the shape and size of the foundation, the control measurement points should be arranged reasonably. It is recommended to set measurement points at the four corners, center point and key connection parts of the foundation to ensure full coverage of the key areas of the foundation.

[0127] Precise control of the movement and positioning of the cap: Before pouring each section, the cap of the previous section is moved to its control point to reach the theoretical matching position. In order to ensure that the cap does not deform or displace during the movement, high-precision positioning equipment (such as laser rangefinder, total station) can be used for real-time monitoring and adjustment. At the same time, a support device can be set at the bottom of the cap to prevent the cap from tilting or sliding during the movement.

[0128] Dynamic adjustment: During the movement of the platform, the position and posture of the platform are monitored in real time, and dynamic adjustments are made when necessary. For example, if a part of the platform is found to deviate from the theoretical position, the movement can be stopped immediately and repositioned to ensure that the final position of the platform meets the design requirements.

[0129] Step 5: Verification and adjustment.

[0130] S51. After each pouring, use the measuring robot to collect the cast-in-place position of the control measuring point of the current segment cap in the local coordinate system and compare it with the theoretical matching position. The main contents of the verification include position deviation, geometric shape, and size deviation.

[0131] Position deviation: Check whether the deviation between the actual position and the theoretical position of the control measuring point is within the allowable range (such as ±5 mm).

[0132] Geometry: Check whether the geometry of the foundation meets the design requirements, especially the flatness, verticality and horizontality of the foundation.

[0133] Dimension deviation: Check whether the dimensions of the base (such as length, width, and height) meet the design requirements and ensure that the overall dimensional error of the base is within an acceptable range.

[0134] S52. Adjustment method, including adjustment of constraint conditions and weight coefficients.

[0135] Adjustment of constraints: If it is found that some control points have large deviations, they can be corrected by adjusting the template position, adding support devices, etc. If necessary, part of the concrete can be re-poured to ensure that the final position of the cap is accurate.

[0136] Weight coefficient adjustment: When calculating the theoretical installation position of the foundation, the weight coefficient of each control point can be adjusted according to the actual situation. For example, for the control points of key parts (such as the four corner points of the foundation), a larger weight can be given to ensure higher accuracy of these parts.

[0137] S53. Risk warning and response measures.

[0138] During the construction process, you may encounter various uncertainties and risk factors (such as weather changes, equipment failures, insufficient material supply, etc.). In order to deal with these risks, a risk early warning mechanism can be established to monitor the construction progress and quality in real time, identify problems in a timely manner and take corresponding countermeasures. For example, if it is found that the pouring speed of concrete is too slow, the number of transport vehicles can be increased; if it is found that the deformation of the foundation is too large, reinforcement measures can be taken to prevent further deformation of the foundation.

[0139] Step 6: Complete the foundation construction.

[0140] After all the segment caps are poured and installed, check whether the geometry, size and position of the entire cap meet the design requirements. The specific inspection contents include overall size, geometry, surface quality and internal structure.

[0141] Overall size: Check whether the length, width and height of the base meet the design requirements to ensure that the overall size error of the base is within an acceptable range.

[0142] Geometry: Check the flatness, verticality and horizontality of the foundation to ensure that the geometry of the foundation meets the design requirements.

[0143] Surface quality: Check the surface quality of the foundation to ensure that the concrete surface is smooth, free of cracks, honeycombs and other defects.

[0144] Internal structure: Use non-destructive testing technologies such as ultrasonic testing and radar testing to check the internal structure of the foundation to ensure that the position and quantity of components such as steel bars and embedded parts meet the design requirements.

[0145] When the foundation construction meets the above conditions, the final results are output, and all data during the construction process (such as measurement data, pouring records, adjustment records, etc.) are sorted and archived. All data should be saved in electronic and paper documents for subsequent reference and tracing.

[0146] The beneficial effects of this embodiment are as follows: This embodiment not only covers the entire process from the establishment of the local coordinate system to the completion of the cap construction, but also takes into account various uncertainties and risk factors in the construction process to ensure the final quality and safety of the cap. By introducing advanced measurement technology and automated control means, the system can effectively improve the accuracy and efficiency of the cap construction, reduce construction costs, and improve project quality.

[0147] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0148] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A concrete pouring control system used in cap construction, characterized in that: The system comprises Coordinate system construction module: clarify the method of establishing the local coordinate system, determine the origin position, and define the direction of the coordinate axis; consider the differences in the shape and size of the platform and choose the appropriate method of establishing the coordinate system; use portable measuring equipment for rapid positioning in complex environments; The first section pouring measurement module: clarify the concrete mix ratio, pouring speed, vibration method and maintenance measures; calibrate the measurement robot before each use, and use the total station for secondary verification when collecting the cast-in-place position; Position calculation and deformation compensation module: establish a transition coordinate system, clarify the origin position and coordinate axis direction, and use it to describe the relative position of the first segment cap; provide the conversion matrix formula and calculation steps from the local coordinate system to the transition coordinate system, consider the deformation and displacement of the cap during the construction process, and introduce a compensation mechanism to ensure the accuracy of the calculation results; Multi-segment pouring monitoring module: determine the pouring sequence and interval time of each segment cap; select and arrange control measurement points, monitor the position and posture of the cap in real time, and make dynamic adjustments; Construction quality verification and adjustment module: collect the cast-in-place position of the current segment cap and compare it with the theoretical matching position to check the position deviation, geometric shape and size deviation; according to the verification results, adjust the constraint conditions and weight coefficients to ensure that the final position of the cap is accurate; Establish a risk early warning mechanism to monitor construction progress and quality in real time and take countermeasures; Cap construction quality inspection module: After the pouring and installation of all segment caps are completed, check whether the geometry, size and position of the entire cap meet the design requirements, including overall size, geometry, surface quality and internal structure; Output the final results and organize and archive all data during the construction process.

2. A concrete pouring control system for cap construction according to claim 1, characterized in that: The system workflow is as follows: Step 1: Establish a local coordinate system, determine the origin position and coordinate axis direction, and use measuring equipment to perform precise measurements to ensure the accuracy of the coordinate system; Step 2: Cast the first section of the cap, clarify the process of concrete pouring, and add calibration and verification steps for the measuring robot during the pouring process to ensure the accuracy of the measurement data; the selection of concrete mix ratio, control of pouring speed, use of vibration method and implementation of maintenance measures are all carried out according to the design requirements to ensure the working performance and durability of the concrete; Step 3: Calculate the theoretical installation position and matching position of the first segment cap, establish a transition coordinate system, and perform coordinate transformation. Meanwhile, consider the deformation and displacement of the cap during the construction process, and introduce a compensation mechanism for correction. Step 4: Cast the remaining segment caps in sequence, clarify the casting order and interval time of each segment cap, select and arrange control measurement points, realize precise control of cap movement and positioning, and make dynamic adjustments; Step 5: After each pouring is completed, use the measurement robot to collect the cast-in-place position of the control measurement point of the current segment cap in the local coordinate system, and compare it with the theoretical matching position for verification and adjustment, including adjusting the constraint conditions and weight coefficients, and establishing risk warnings and response measures; Step 6. After the casting and installation of all segmental caps are completed, check whether the geometry, size and position of the entire cap meet the design requirements, output the final results, and organize and archive all data during the construction process.

3. A concrete pouring control system for cap construction according to claim 2, characterized in that: The step 1 is specifically as follows: S11. Clarify the method of establishing the local coordinate system; Determine the origin: establish a local coordinate system at the fixed end formwork in the construction area of ​​the cap, and take the intersection of the fixed end formwork and the cap template and the center line of the cap top surface as the origin of the coordinate system; the coordinate axis directions include the positive direction of the X axis, the positive direction of the Y axis, and the positive direction of the Z axis; Positive direction of X axis: along the center line of the top surface of the pedestal, pointing to the direction of the matching end mold; Positive direction of Y axis: determined according to the right-hand rule, the thumb of the right hand points to the positive direction of the X axis, the index finger points to the positive direction of the Z axis, and the middle finger points to the positive direction of the Y axis; Positive direction of Z axis: vertically upward, pointing to the sky; Name the coordinate system as local coordinate system A, and clearly mark its origin position and coordinate axis direction in the construction records; Use a total station or laser rangefinder to perform precise measurements to ensure the accuracy of the coordinate system. All measurement data are recorded in the construction log, including the origin coordinates and the angle information of the coordinate axis direction; S12. Consider differences in the shapes and sizes of the abutments; Adjust the way to establish the coordinate system: For platforms of different shapes and sizes, adjust the way to establish the local coordinate system, including selecting multiple reference points to define the coordinate system for platforms of irregular shapes to ensure that the position information of each measuring point is accurate; Adaptability to construction environment: In complex construction environments including deep foundation pits and narrow spaces, portable measuring equipment is used for rapid positioning to ensure that the establishment of the coordinate system is not restricted by the environment.

4. A concrete pouring control system for cap construction according to claim 2, characterized in that: In step 3, the specific formula and calculation steps of coordinate transformation include the determination of the transformation matrix from the local coordinate system to the transition coordinate system, and the calculation of the rotation matrix and the translation vector. Meanwhile, the deformation and displacement of the foundation during the construction process are considered, and the compensation matrix is ​​introduced for correction, as follows: S31. Clarify the method for establishing the transition coordinate system; Determine the origin: Take the intersection of the matching end form of the first segment cap and the cap template and the intersection of the center line of the cap top surface as the origin, and establish the transition coordinate system of the first segment cap; name the coordinate system as transition coordinate system B, and clearly mark its origin position and coordinate axis direction in the construction record; the coordinate axis direction includes the positive direction of the X axis, the positive direction of the Y axis, and the positive direction of the Z axis; Positive direction of X axis: along the center line of the top surface of the pedestal, pointing to the direction of the fixed end mold; Positive direction of Y axis: determined according to the right-hand rule; Positive direction of Z axis: vertically upward, pointing to the sky; S32, specific formula and calculation steps for coordinate conversion; Transformation matrix from local coordinate system to transition coordinate system: Let the local coordinate system be A and the transition coordinate system be B, then point P in the local coordinate system A =(x A ,y A ,z A ) in the transition coordinate system P B =(x B ,y B ,z B ) is converted using the following formula: P B =T AB ·P A ; Among them, T AB is the transformation matrix from the local coordinate system A to the transition coordinate system B, and its specific form is as follows: The rotation matrix R represents the rotation relationship between the local coordinate system A and the transition coordinate system B, which can be calculated by the direction vectors of the two coordinate systems; let u A 、v A 、w A are the X, Y, and Z axis direction vectors of the local coordinate system A; u B 、v B 、w B are the X, Y, and Z axis direction vectors of the local coordinate system B respectively; the rotation matrix R is expressed as: The translation vector t represents the coordinates of the origin of the local coordinate system A in the transition coordinate system B, which is calculated using known geometric relationships; S33. Consider the deformation and displacement of the cap during construction; Deformation monitoring: Install displacement sensors or strain gauges on the bearing platform to monitor the deformation of the bearing platform in real time; when the deformation exceeds the allowable threshold range, make corrections; Compensation mechanism: Adjust the coordinate transformation matrix T according to the deformation monitoring data AB To ensure the accuracy of the calculation results, a compensation factor Δ is introduced to correct the coordinate transformation formula: P B =(T AB +Δ)·P A ; Among them, Δ is the compensation matrix calculated based on the deformation monitoring data.

5. A concrete pouring control system for cap construction according to claim 2, characterized in that: In the step 4, the control measuring points are selected and arranged reasonably according to the shape and size of the foundation to ensure full coverage of the key areas of the foundation, and high-precision positioning equipment is used to perform real-time monitoring and adjustment during the movement of the foundation.

6. A concrete pouring control system for cap construction according to claim 2, characterized in that: The main contents verified in step five include position deviation, geometric shape, and size deviation. The adjustment methods include adjusting constraints and weight coefficients, and establishing a risk warning mechanism to monitor construction progress and quality in real time, identify problems in a timely manner, and take corresponding countermeasures.

7. A concrete pouring control system for cap construction according to claim 2, characterized in that: The inspection contents in step six include overall dimensions, geometric shape, surface quality, and internal structure. Non-destructive testing technology is used to inspect the internal structure of the foundation to ensure that the position and quantity of steel bars and embedded components meet the design requirements.

8. A concrete pouring control system for cap construction according to claim 2, characterized in that: It also includes real-time processing and analysis of measurement data during the construction process to monitor the construction quality and progress of the foundation, and adjust construction parameters or take corrective measures based on the analysis results.

9. The concrete pouring control system according to claim 8, characterized in that: The measurement data processed and analyzed in real time include the position, size, deformation, concrete pouring speed, and vibration frequency of the foundation, and the adjusted construction parameters include concrete mix ratio, pouring speed, vibration method, and curing conditions.

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