Roller compacted concrete slurry adding modification construction homogeneity cooperative control device

Abstract

The invention discloses a roller compacted concrete slurry adding modification construction homogeneity cooperative control device, which comprises a slurry metering module for calculating the output quantity of modified slurry according to a pouring rate, aggregate grading data and a slurry water-cement ratio; the compaction degree calculation module is used for calculating the compaction degree of the concrete according to the exciting force, the rolling depth and the rolling times; the detection module is used for generating a compactness distribution three-dimensional map; the control module is used for comparing the output quantity of the modified slurry with the output quantity of a preset adjustment instruction and generating a first correction strategy according to a comparison result; the compaction degree of the concrete is compared with a preset compaction degree threshold value, and a second correction strategy is generated according to a comparison result; and determining a to-be-adjusted area according to the compactness distribution three-dimensional map, generating an adjustment instruction of the to-be-adjusted area, and sending the adjustment instruction to the slurry metering module and the compactness calculation module. Accurate slurry metering control and compactness control are achieved, and timeliness and accuracy of construction adjustment are improved based on precise compactness detection.

Description

Technical Field

[0001] This invention relates to the field of control technology, and in particular to a device for the coordinated control of homogeneity during roller-compacted concrete grouting modification construction. Background Technology

[0002] In the grouting modification construction of roller-compacted concrete (RCC) projects, homogeneity is one of the core indicators determining the mechanical properties, impermeability, and crack resistance of concrete. Currently, existing control methods for grouting modification construction of RCC have the following significant shortcomings: Lack of dynamic adaptability in grout metering: Traditional grouting systems only set the grout output volume based on empirical values, without real-time correlation with dynamic construction parameters such as pouring rate, aggregate gradation, and grout water-cement ratio. This easily leads to uneven aggregate dispersion and significant fluctuations in construction homogeneity. Insufficient accuracy and real-time performance in compaction control: Existing compaction control relies solely on empirical control using the single parameter of the number of compaction passes, resulting in delayed and inaccurate compaction judgment. Lack of specificity and visualization in density testing: Existing concrete internal density testing does not incorporate geological zoning adjustments to the scanning strategy for the pouring section, resulting in numerous blind spots and insufficient specificity. Furthermore, the test results are presented only as local point data, failing to generate a three-dimensional map containing spatial coordinates and density distribution, making it difficult to accurately locate internal defect areas. The lack of coordinated management logic in the various stages of the existing technology makes it impossible to make effective adjustments, which further exacerbates the imbalance of construction homogeneity. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this invention is to propose a synergistic control device for the homogeneity of roller-compacted concrete with slurry modification, achieving accurate slurry metering and compaction control. Based on precise density detection, it accurately identifies defective areas and performs synergistic management, improving the timeliness and accuracy of construction adjustments.

[0004] To achieve the above objectives, embodiments of the present invention propose a device for synergistic control of homogeneity during roller-compacted concrete grouting modification construction, comprising: The slurry metering module is used to collect the pouring rate, aggregate gradation data and slurry water-cement ratio during the roller-compacted concrete pouring process; it calculates the output of modified slurry based on the pouring rate, aggregate gradation data and slurry water-cement ratio and transmits it to the control module. The compaction calculation module is used to collect the excitation force, compaction depth, and number of compaction passes of the compaction equipment; calculate the compaction degree of the concrete based on the excitation force, compaction depth, and number of compaction passes, and transmit the data to the control module. The detection module is used to adaptively plan the scanning path for the geological zoning of the pouring section based on the array probe, extract the amplitude, frequency and wave velocity characteristic values ​​of the ultrasonic echo signal through wavelet transform, determine the internal density of the compacted concrete, and generate a three-dimensional map of the density distribution. The control module is connected to the slurry metering module, compaction calculation module, and detection module, respectively, and is used for: The output of the modified slurry is compared with the output of the preset adjustment command, and a first correction strategy is generated based on the comparison result. The compaction degree of concrete is compared with a preset compaction degree threshold, and a second correction strategy is generated based on the comparison result. The area to be adjusted is determined based on the three-dimensional map of the density distribution. An adjustment command for the area to be adjusted is generated and sent to the slurry metering module and the compaction calculation module.

[0005] According to some embodiments of the present invention, the slurry metering module includes: The first data acquisition module is installed on the concrete placing machine and is used to collect the moving speed of the concrete placing machine, the width of the concrete placement, and the thickness of the pouring layer, and to calculate the pouring rate. The second acquisition module is located above the aggregate conveyor belt and is used to collect data on the stone powder content, volume ratio of coarse and fine aggregates, and aggregate gradation to determine the aggregate gradation data. The third acquisition module is installed in the grouting pipeline to collect the water content, density and cement density of the grout, and calculate the water-cement ratio of the grout. The first calculation module is used to input the pouring rate, aggregate gradation data and slurry water-cement ratio into the trained partial least squares regression model, determine the output of the modified slurry, and transmit it to the control module.

[0006] According to some embodiments of the present invention, the first acquisition module is a magnetoelectric speed encoder; the second acquisition module is a laser particle size analyzer; and the third acquisition module is a capacitive moisture content sensor and a Coriolis mass flow meter.

[0007] According to some embodiments of the present invention, a compaction degree calculation module includes: The fourth acquisition module is located at the connection node between the roller and the vibration damping support of the frame of the compaction equipment. It is used to acquire the vertical excitation force of the roller on the concrete, and convert it through an AD converter to obtain the excitation force of the compaction equipment. The fifth data acquisition module is set on the non-compacting side of the compaction equipment's chassis, with the measurement direction perpendicular to the pouring surface. It is used to obtain the real-time chassis height and calculate the difference between the height and the unloaded calibrated chassis height as the compaction depth. The sixth acquisition module is located at the drive shaft end of the roller of the compaction equipment. It is used to acquire the pulse signal during rotation to obtain the number of compaction passes. The second calculation module is used to calculate the compaction degree of concrete based on the excitation force, compaction depth and number of compaction passes, and transmit the result to the control module.

[0008] According to some embodiments of the present invention, the second calculation module calculates the compaction degree of concrete, including: ; in, The compaction degree of the concrete; The first influence weight coefficient has a value of (0,1). The excitation force for the compaction equipment; This is the reference value for the excitation force; This is the second influence weighting coefficient, with a value of (0,1); This refers to the compaction depth; is the benchmark value for compaction depth; c is the third influence weighting coefficient, with a value of (0,1); This refers to the number of compaction passes. The effect value is a constant.

[0009] According to some embodiments of the present invention, the detection module includes: The geological zoning acquisition module is used to acquire the geological zoning type corresponding to the current pouring section; the geological zoning type includes high permeability-strongly fractured zone, medium permeability-locally fractured zone, and low permeability-microfractured zone. The scanning module is used to adjust scanning parameters and plan scanning paths according to geological zoning types; An array of probes is used to switch the corresponding operating frequency according to the current thickness of the poured layer; The extraction module is used to perform three-level wavelet decomposition on the acquired ultrasonic echo signal based on the db4 wavelet basis, separate the low-frequency approximation coefficients and high-frequency detail coefficients, extract the amplitude, frequency and wave velocity feature values ​​of the ultrasonic echo signal, compare them with the preset database, determine the internal density of the compacted concrete based on the comparison results, and generate a three-dimensional density distribution map.

[0010] According to some embodiments of the present invention, the scanning module adjusts scanning parameters and plans scanning paths based on geological zoning types, including: For high-penetration and highly fragmented zones, a spiral scanning path is planned with a scanning interval of ≤30cm; For medium-permeability-local fragmentation zones, a serpentine scanning path is planned with a scanning interval ≤40cm; For low-permeability microfracture zones, a grid scanning path is planned with a scanning spacing of ≤50cm.

[0011] According to some embodiments of the present invention, the control module compares the compaction degree of concrete with a preset compaction degree threshold, and generates a second correction strategy based on the comparison result, including: If the compaction degree of the concrete is determined to be less than the preset compaction degree threshold, the number of compaction passes is increased, and the compaction degree of the concrete is checked again. If the compaction degree is still less than the preset compaction degree threshold, the excitation force is increased.

[0012] According to some embodiments of the present invention, the control module determines the area to be adjusted based on the three-dimensional density distribution map, generates an adjustment command for the area to be adjusted, and sends it to the slurry metering module and the compaction calculation module, including: The first determining module is used to identify the three-dimensional map of density distribution based on the CNN-LSTM fusion model, and determine the area with density less than the preset density threshold as the area to be adjusted; The second determining module is used to determine the defect volume of the area to be adjusted, determine the grouting instruction based on the defect volume, and send it to the grout metering module. The third determination module is used to determine the defect center of the area to be adjusted, generate a compaction command for an annular area with an outer diameter of 1.5 times the defect center, and send it to the compaction calculation module.

[0013] According to some embodiments of the present invention, it further includes: a distributed optical fiber temperature monitoring module for collecting internal temperature data of concrete; The control module compares the internal temperature data of the concrete with a preset temperature threshold. When it is determined that the internal temperature data of the concrete is greater than the preset temperature threshold, the control module controls the slurry metering module to reduce the water-cement ratio of the modified slurry, and at the same time controls the compaction equipment to shorten the compaction interval.

[0014] This invention proposes a collaborative control device for the homogeneity of roller-compacted concrete (RCC) with grout modification. Based on the dynamic calculation output of the associated pouring rate, aggregate gradation, and grout water-cement ratio, it improves the homogeneity of the RCC construction. By real-time acquisition of parameters such as excitation force and compaction depth to collaboratively calculate compaction degree, compaction parameters can be adjusted in a timely manner, ensuring the stability of concrete compaction quality. Adaptive scanning paths for different geological zones reduce detection blind spots; simultaneously, a three-dimensional density distribution map is generated, enabling precise location of internal defect areas. Adjustments to defect areas based on multi-module collaborative control improve construction quality and efficiency.

[0015] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1This is a block diagram of a roller-compacted concrete grouting modification construction homogeneity co-control device according to an embodiment of the present invention; Figure 2 This is a block diagram of a slurry metering module according to an embodiment of the present invention; Figure 3 This is a block diagram of a compaction calculation module according to an embodiment of the present invention. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] like Figure 1 As shown in the figure, an embodiment of the present invention proposes a device for synergistic control of homogeneity during roller-compacted concrete grouting modification construction, comprising: The slurry metering module is used to collect the pouring rate, aggregate gradation data and slurry water-cement ratio during the roller-compacted concrete pouring process; it calculates the output of modified slurry based on the pouring rate, aggregate gradation data and slurry water-cement ratio and transmits it to the control module. The compaction calculation module is used to collect the excitation force, compaction depth, and number of compaction passes of the compaction equipment; calculate the compaction degree of the concrete based on the excitation force, compaction depth, and number of compaction passes, and transmit the data to the control module. The detection module is used to adaptively plan the scanning path for the geological zoning of the pouring section based on the array probe, extract the amplitude, frequency and wave velocity characteristic values ​​of the ultrasonic echo signal through wavelet transform, determine the internal density of the compacted concrete, and generate a three-dimensional map of the density distribution. The control module is connected to the slurry metering module, compaction calculation module, and detection module, respectively, and is used for: The output of the modified slurry is compared with the output of the preset adjustment command, and a first correction strategy is generated based on the comparison result. The compaction degree of concrete is compared with a preset compaction degree threshold, and a second correction strategy is generated based on the comparison result. The area to be adjusted is determined based on the three-dimensional map of the density distribution. An adjustment command for the area to be adjusted is generated and sent to the slurry metering module and the compaction calculation module.

[0020] The working principle and beneficial effects of the above technical solution are as follows: the pouring rate, aggregate gradation data and slurry water-cement ratio are collected during the roller-compacted concrete pouring process. These dynamic parameters are input into a pre-trained partial least squares regression model to calculate the output of modified slurry that matches the current working conditions, and the output data is transmitted to the control module. The compaction calculation module collects the excitation force, compaction depth, and number of compaction passes of the compaction equipment; it calculates the compaction degree of the concrete based on the excitation force, compaction depth, and number of compaction passes, and transmits this data to the control module; the detection module adaptively plans the scanning path for the geological zoning of the pouring section based on an array probe, extracts the amplitude, frequency, and wave velocity characteristic values ​​of the ultrasonic echo signal through wavelet transform, determines the internal density of the compacted concrete, and generates a three-dimensional density distribution map; it compares the real-time grout output with the output of the preset adjustment command to generate a first correction strategy for adjusting the grout flow rate; it compares the real-time compaction degree with the preset compaction threshold to generate a second correction strategy for adjusting the number of compaction passes / excitation force; based on the three-dimensional density distribution map, it identifies the areas to be adjusted, generates grout replenishment commands and ring compaction commands, and achieves precise correction of defective areas. The output is dynamically calculated based on the correlation of pouring rate, aggregate gradation, and grout water-cement ratio, improving the homogeneity of the grouting modification construction. By collecting parameters such as excitation force and compaction depth in real time and coordinating the calculation of compaction degree, compaction parameters can be adjusted in a timely manner, ensuring the stability of concrete compaction quality. Adapting scanning paths to different geological zones reduces blind spots in detection; simultaneously, generating a three-dimensional density distribution map allows for precise location of internal defect areas. Adjustments to defect areas based on multi-module collaborative control improve construction quality and efficiency.

[0021] like Figure 2 As shown, according to some embodiments of the present invention, the slurry metering module includes: The first data acquisition module is installed on the concrete placing machine and is used to collect the moving speed of the concrete placing machine, the width of the concrete placement, and the thickness of the pouring layer, and to calculate the pouring rate. The second acquisition module is located above the aggregate conveyor belt and is used to collect data on the stone powder content, volume ratio of coarse and fine aggregates, and aggregate gradation to determine the aggregate gradation data. The third acquisition module is installed in the grouting pipeline to collect the water content, density and cement density of the grout, and calculate the water-cement ratio of the grout. The first calculation module is used to input the pouring rate, aggregate gradation data and slurry water-cement ratio into the trained partial least squares regression model, determine the output of the modified slurry, and transmit it to the control module.

[0022] The working principle of the above technical solution is as follows: the pouring rate is determined based on the product of the moving speed, the width of the concrete placement, and the thickness of the pouring layer. Aggregate gradation data is determined based on the second acquisition module; the water-cement ratio of the slurry is calculated based on the third acquisition module. Slurry water-cement ratio = (slurry moisture content × slurry density) / (cement density × (1 - slurry moisture content)). The partial least squares regression model is fitted based on a large number of orthogonal experimental samples (covering different combinations of pouring rates, aggregate gradations, and slurry water-cement ratios), effectively handling multivariate coupling relationships. The training of the partial least squares regression model includes: organizing the orthogonal experimental samples into a feature matrix (input parameters) and a target vector (output); preprocessing the feature matrix to obtain standardized data; dividing the standardized data into training and testing sets; fitting the model based on the training set and evaluating the model based on the testing set; selecting the optimal principal component number through cross-validation for model tuning; evaluating the tuned model, and obtaining the partial least squares regression model after passing the evaluation.

[0023] The beneficial effects of the above technical solution are as follows: collecting three core dimension parameters—pouring rate, aggregate gradation, and slurry water-cement ratio—comprehensively covers key variables affecting slurry demand, facilitating accurate determination of the output of modified slurry, and using a partial least squares regression model to effectively eliminate multicollinearity among variables and improve calculation accuracy.

[0024] According to some embodiments of the present invention, the first acquisition module is a magnetoelectric speed encoder; the second acquisition module is a laser particle size analyzer; and the third acquisition module is a capacitive moisture content sensor and a Coriolis mass flow meter.

[0025] like Figure 3 As shown, according to some embodiments of the present invention, the compaction degree calculation module includes: The fourth acquisition module is located at the connection node between the roller and the vibration damping support of the frame of the compaction equipment. It is used to acquire the vertical excitation force of the roller on the concrete, and convert it through an AD converter to obtain the excitation force of the compaction equipment. The fifth data acquisition module is set on the non-compacting side of the compaction equipment's chassis, with the measurement direction perpendicular to the pouring surface. It is used to obtain the real-time chassis height and calculate the difference between the height and the unloaded calibrated chassis height as the compaction depth. The sixth acquisition module is located at the drive shaft end of the roller of the compaction equipment. It is used to acquire the pulse signal during rotation to obtain the number of compaction passes. The second calculation module is used to calculate the compaction degree of concrete based on the excitation force, compaction depth and number of compaction passes, and transmit the result to the control module.

[0026] The working principle and beneficial effects of the above technical solution are as follows: By calculating the compaction degree of concrete based on the excitation force, compaction depth and number of compaction passes, the problem of insufficient or excessive compaction in local areas can be detected in a timely manner, thus improving the accuracy of compaction degree calculation.

[0027] According to some embodiments of the present invention, the second calculation module calculates the compaction degree of concrete, including: ; in, The compaction degree of the concrete; The first influence weight coefficient has a value of (0,1). The excitation force for the compaction equipment; This is the reference value for the excitation force; This is the second influence weighting coefficient, with a value of (0,1); This refers to the compaction depth; is the benchmark value for compaction depth; c is the third influence weighting coefficient, with a value of (0,1); This refers to the number of compaction passes. The effect value is a constant.

[0028] The working principle and beneficial effects of the above technical solution are as follows: The constant term P is determined by back-calculation of the measured compaction degree under the benchmark working condition. By quantifying the influence of excitation force, rolling depth, and number of rolling passes through weighting coefficients, multi-parameter synergistic weighting is achieved, thereby improving the accuracy of compaction degree calculation.

[0029] According to some embodiments of the present invention, the detection module includes: The geological zoning acquisition module is used to acquire the geological zoning type corresponding to the current pouring section; the geological zoning type includes high permeability-strongly fractured zone, medium permeability-locally fractured zone, and low permeability-microfractured zone. The scanning module is used to adjust scanning parameters and plan scanning paths according to geological zoning types; An array of probes is used to switch the corresponding operating frequency according to the current thickness of the poured layer; The extraction module is used to perform three-level wavelet decomposition on the acquired ultrasonic echo signal based on the db4 wavelet basis, separate the low-frequency approximation coefficients and high-frequency detail coefficients, extract the amplitude, frequency and wave velocity feature values ​​of the ultrasonic echo signal, compare them with the preset database, determine the internal density of the compacted concrete based on the comparison results, and generate a three-dimensional density distribution map.

[0030] The working principle and beneficial effects of the above technical solution are as follows: Scanning paths and spacing are designed differently based on geological zoning types, with dense scanning in high-risk areas and efficient scanning in low-risk areas, improving the defect detection rate. An array-type probe acquires real-time data on the current pouring layer thickness and automatically switches operating frequencies to improve detection accuracy. Based on the db4 wavelet basis, the acquired ultrasonic echo signal is decomposed into three layers of wavelets to separate low-frequency approximation coefficients and high-frequency detail coefficients. The amplitude, frequency, and wave velocity characteristic values ​​of the ultrasonic echo signal are extracted and compared with a preset database containing the correspondence between the amplitude, frequency, and wave velocity characteristic values ​​of the ultrasonic echo signal and the internal density of the concrete. Based on the comparison results, the internal density of the compacted concrete is determined, generating a three-dimensional density distribution map, improving the accuracy of the three-dimensional density distribution map.

[0031] According to some embodiments of the present invention, the scanning module adjusts scanning parameters and plans scanning paths based on geological zoning types, including: For high-penetration and highly fragmented zones, a spiral scanning path is planned with a scanning interval of ≤30cm; For medium-permeability-local fragmentation zones, a serpentine scanning path is planned with a scanning interval ≤40cm; For low-permeability microfracture zones, a grid scanning path is planned with a scanning spacing of ≤50cm.

[0032] The working principle and beneficial effects of the above technical solution are as follows: different scanning parameters and scanning paths are adopted for different geological zoning types, which facilitates the optimization of scanning resource allocation, reduces construction costs, and improves the defect detection rate.

[0033] According to some embodiments of the present invention, the control module compares the compaction degree of concrete with a preset compaction degree threshold, and generates a second correction strategy based on the comparison result, including: If the compaction degree of the concrete is determined to be less than the preset compaction degree threshold, the number of compaction passes is increased, and the compaction degree of the concrete is checked again. If the compaction degree is still less than the preset compaction degree threshold, the excitation force is increased.

[0034] The working principle and beneficial effects of the above technical solution are as follows: When the compaction degree of the concrete is determined to be less than the preset compaction degree threshold, the number of compaction passes is increased, and the compaction degree of the concrete is tested again. If the compaction degree is still less than the preset compaction degree threshold, the excitation force is increased. This adopts a progressive logic of first increasing the number of compaction passes and then increasing the excitation force, prioritizing the compensation for insufficient compaction by increasing the number of compaction passes, and avoiding the problems of aggregate breakage and concrete skeleton damage caused by directly increasing the excitation force.

[0035] According to some embodiments of the present invention, the control module determines the area to be adjusted based on the three-dimensional density distribution map, generates an adjustment command for the area to be adjusted, and sends it to the slurry metering module and the compaction calculation module, including: The first determining module is used to identify the three-dimensional map of density distribution based on the CNN-LSTM fusion model, and determine the area with density less than the preset density threshold as the area to be adjusted; The second determining module is used to determine the defect volume of the area to be adjusted, determine the grouting instruction based on the defect volume, and send it to the grout metering module. The third determination module is used to determine the defect center of the area to be adjusted, generate a compaction command for an annular area with an outer diameter of 1.5 times the defect center, and send it to the compaction calculation module.

[0036] The working principle and beneficial effects of the above technical solution are as follows: A CNN-LSTM fusion model is used to identify the three-dimensional density distribution map and determine the areas with density less than a preset density threshold as areas to be adjusted; the second determination module determines the defect volume of the area to be adjusted, determines the grouting instruction based on the defect volume, and sends it to the grout metering module; the third determination module determines the defect center of the area to be adjusted, generates a compaction instruction for a ring-shaped area expanding outward from the defect center by 1.5 times the defect diameter, and sends it to the compaction calculation module. The control module simultaneously generates grouting and compaction instructions, which are accurately sent to the grout metering module and the compaction calculation module respectively. Grouting and compaction work together to improve the efficiency and effectiveness of the correction.

[0037] According to some embodiments of the present invention, it further includes: a distributed optical fiber temperature monitoring module for collecting internal temperature data of concrete; The control module compares the internal temperature data of the concrete with a preset temperature threshold. When it is determined that the internal temperature data of the concrete is greater than the preset temperature threshold, the control module controls the slurry metering module to reduce the water-cement ratio of the modified slurry, and at the same time controls the compaction equipment to shorten the compaction interval.

[0038] The working principle and beneficial effects of the above technical solution are as follows: The control module compares the internal temperature data of the concrete with a preset temperature threshold. When the internal temperature data of the concrete exceeds the preset temperature threshold, the control module controls the slurry metering module to reduce the water-cement ratio of the modified slurry. At the same time, the control module controls the compaction equipment to shorten the compaction interval, which facilitates the response to high-temperature risks and suppresses temperature cracks. By adjusting the water-cement ratio and compaction interval in real time, the workability of the concrete can be dynamically adapted to changes under high temperatures, ensuring the homogeneity of the concrete.

[0039] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A device for synergistic control of homogeneity during roller-compacted concrete (RCC) grouting modification construction, characterized in that, include: The slurry metering module is used to collect the pouring rate, aggregate gradation data and slurry water-cement ratio during the roller-compacted concrete pouring process; it calculates the output of modified slurry based on the pouring rate, aggregate gradation data and slurry water-cement ratio and transmits it to the control module. The compaction calculation module is used to collect the excitation force, compaction depth, and number of compaction passes of the compaction equipment; calculate the compaction degree of the concrete based on the excitation force, compaction depth, and number of compaction passes, and transmit the data to the control module. The detection module is used to adaptively plan the scanning path for the geological zoning of the pouring section based on the array probe, extract the amplitude, frequency and wave velocity characteristic values ​​of the ultrasonic echo signal through wavelet transform, determine the internal density of the compacted concrete, and generate a three-dimensional map of the density distribution. The control module is connected to the slurry metering module, compaction calculation module, and detection module, respectively, and is used for: The output of the modified slurry is compared with the output of the preset adjustment command, and a first correction strategy is generated based on the comparison result. The compaction degree of concrete is compared with a preset compaction degree threshold, and a second correction strategy is generated based on the comparison result. The area to be adjusted is determined based on the three-dimensional map of the density distribution. An adjustment command for the area to be adjusted is generated and sent to the slurry metering module and the compaction calculation module.

2. The roller-compacted concrete grouting modification construction homogeneity co-control device as described in claim 1, characterized in that, The slurry metering module includes: The first data acquisition module is installed on the concrete placing machine and is used to collect the moving speed of the concrete placing machine, the width of the concrete placement, and the thickness of the pouring layer, and to calculate the pouring rate. The second acquisition module is located above the aggregate conveyor belt and is used to collect data on the stone powder content, volume ratio of coarse and fine aggregates, and aggregate gradation to determine the aggregate gradation data. The third acquisition module is installed in the grouting pipeline to collect the water content, density and cement density of the grout, and calculate the water-cement ratio of the grout. The first calculation module is used to input the pouring rate, aggregate gradation data and slurry water-cement ratio into the trained partial least squares regression model, determine the output of the modified slurry, and transmit it to the control module.

3. The roller-compacted concrete grouting modification construction homogeneity co-control device as described in claim 2, characterized in that, The first acquisition module is a magnetoelectric speed encoder; the second acquisition module is a laser particle size analyzer; and the third acquisition module is a capacitive moisture content sensor and a Coriolis mass flow meter.

4. The roller-compacted concrete grouting modification construction homogeneity co-control device as described in claim 1, characterized in that, The compaction degree calculation module includes: The fourth acquisition module is located at the connection node between the roller and the vibration damping support of the frame of the compaction equipment. It is used to acquire the vertical excitation force of the roller on the concrete, and convert it through an AD converter to obtain the excitation force of the compaction equipment. The fifth data acquisition module is set on the non-compacting side of the compaction equipment's chassis, with the measurement direction perpendicular to the pouring surface. It is used to obtain the real-time chassis height and calculate the difference between the height and the unloaded calibrated chassis height as the compaction depth. The sixth acquisition module is located at the drive shaft end of the roller of the compaction equipment. It is used to acquire the pulse signal during rotation to obtain the number of compaction passes. The second calculation module is used to calculate the compaction degree of concrete based on the excitation force, compaction depth and number of compaction passes, and transmit the result to the control module.

5. The roller-compacted concrete grouting modification construction homogeneity co-control device as described in claim 4, characterized in that, The second calculation module calculates the compaction degree of concrete, including: ； in, The compaction degree of the concrete; The first influence weight coefficient has a value of (0,1). The excitation force for the compaction equipment; This is the reference value for the excitation force; This is the second influence weighting coefficient, with a value of (0,1); This refers to the compaction depth; is the benchmark value for compaction depth; c is the third influence weighting coefficient, with a value of (0,1); This refers to the number of compaction passes. The effect value is a constant.

6. The roller-compacted concrete grouting modification construction homogeneity co-control device as described in claim 1, characterized in that, The detection module includes: The geological zoning acquisition module is used to acquire the geological zoning type corresponding to the current pouring section; the geological zoning type includes high permeability-strongly fractured zone, medium permeability-locally fractured zone, and low permeability-microfractured zone. The scanning module is used to adjust scanning parameters and plan scanning paths according to geological zoning types; An array of probes is used to switch the corresponding operating frequency according to the current thickness of the poured layer; The extraction module is used to perform three-level wavelet decomposition on the acquired ultrasonic echo signal based on the db4 wavelet basis, separate the low-frequency approximation coefficients and high-frequency detail coefficients, extract the amplitude, frequency and wave velocity feature values ​​of the ultrasonic echo signal, compare them with the preset database, determine the internal density of the compacted concrete based on the comparison results, and generate a three-dimensional density distribution map.

7. The roller-compacted concrete grouting modification construction homogeneity co-control device as described in claim 6, characterized in that, The scanning module adjusts scanning parameters and plans scanning paths based on geological zoning types, including: For high-penetration and highly fragmented zones, a spiral scanning path is planned with a scanning interval of ≤30cm; For medium-permeability-local fragmentation zones, a serpentine scanning path is planned with a scanning interval ≤40cm; For low-permeability microfracture zones, a grid scanning path is planned with a scanning spacing of ≤50cm.

8. The roller-compacted concrete grouting modification construction homogeneity co-control device as described in claim 1, characterized in that, The control module compares the compaction degree of the concrete with a preset compaction degree threshold, and generates a second correction strategy based on the comparison result, including: If the compaction degree of the concrete is determined to be less than the preset compaction degree threshold, the number of compaction passes is increased, and the compaction degree of the concrete is checked again. If the compaction degree is still less than the preset compaction degree threshold, the excitation force is increased.

9. The roller-compacted concrete grouting modification construction homogeneity co-control device as described in claim 1, characterized in that, The control module determines the area to be adjusted based on the three-dimensional density distribution map, generates adjustment instructions for the area to be adjusted, and sends them to the slurry metering module and the compaction calculation module, including: The first determining module is used to identify the three-dimensional map of density distribution based on the CNN-LSTM fusion model, and determine the area with density less than the preset density threshold as the area to be adjusted; The second determining module is used to determine the defect volume of the area to be adjusted, determine the grouting instruction based on the defect volume, and send it to the grout metering module. The third determination module is used to determine the defect center of the area to be adjusted, generate a compaction command for an annular area with an outer diameter of 1.5 times the defect center, and send it to the compaction calculation module.

10. The roller-compacted concrete grouting modification construction homogeneity co-control device as described in claim 1, characterized in that, Also includes: A distributed fiber optic temperature monitoring module is used to collect internal temperature data of concrete. The control module compares the internal temperature data of the concrete with a preset temperature threshold. When it is determined that the internal temperature data of the concrete is greater than the preset temperature threshold, the control module controls the slurry metering module to reduce the water-cement ratio of the modified slurry, and at the same time controls the compaction equipment to shorten the compaction interval.

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