A CSM double-wheel cement-soil mixing wall construction digital monitoring method and system

Abstract

The application discloses a kind of CSM double-wheel cement-soil mixing wall construction digital monitoring method and system, including field monitoring module, edge computing module, data transmission module, cloud intelligent processing module and user terminal.Field monitoring module contains grouting flowmeter, grouting pressure gauge, depth sensor, RTK positioning instrument and current transformer, respectively installed on CSM construction machinery, and real-time acquisition grouting quantity, pressure, depth, point and current data;Edge computing module is collected and converted signal by wired cable, and is uploaded to cloud through 4G network;Cloud carries out data post-processing, chart display and threshold early warning;User can view or export monitoring report in real time through PC, mobile phone or tablet computer.The application realizes the digitalization, automation monitoring of CSM cement-soil mixing wall construction, guarantees the continuity and accuracy of construction management, and reduces labor cost and human error.

Description

Technical Field

[0001] This invention relates to the field of foundation seepage prevention in water conservancy projects, specifically a digital monitoring method and system for the construction of CSM dual-wheel milling cement-soil mixing walls. Background Technology

[0002] In water conservancy engineering construction, the seepage prevention treatment of the foundations of dikes, sluice gates, and other structures on soft soil foundations has always been a core technical challenge concerning the safety and long-term stability of the project. Especially in coastal and riverine areas, deep soft soil foundations are characterized by high water content, high compressibility, low strength, and poor permeability, making them extremely prone to uneven settlement and seepage damage under load, seriously threatening the safety of the main structure.

[0003] Currently, commonly used seepage prevention technologies in water conservancy projects mainly include high-pressure jet grouting piles, plastic concrete cutoff walls, and cement-soil mixing piles. While these technologies each have their applications, they often face challenges such as insufficient wall depth and continuity, and poor equipment adaptability when dealing with complex strata that are extremely deep, hard, or contain numerous obstacles. In recent years, the twin-wheel milling cement-soil mixing wall (CSM) technology, which integrates the trenching technology of hydraulic milling machines with traditional deep mixing technology, has demonstrated outstanding advantages such as strong stratum adaptability, high efficiency, and good wall quality. It has gradually developed into a key core technology for solving the seepage prevention problem of deep soft foundations and has been widely used in major water conservancy projects.

[0004] However, as a concealed underground engineering construction method, the final quality of the CSM method is difficult to inspect and evaluate directly and comprehensively through the finished product. Currently, quality control during construction relies heavily on the experience and responsibility of construction workers, as well as on-site supervision by supervisors. This people-centric management model is prone to human error and even falsification in the recording of construction parameters (such as milling depth, cement grout injection volume, grouting pressure, and lifting speed), making it difficult to ensure precise proportioning and uniform mixing of the cement-soil mixing wall. This results in inconsistent wall quality and poses a potential long-term safety hazard. Furthermore, the entire process requires significant manpower for monitoring, making it difficult to achieve precise, round-the-clock control.

[0005] Therefore, existing quality management models are no longer sufficient to meet the high standards and reliability requirements of modern water conservancy projects for concealed works such as CSM (cement-soil mixing walls). Developing a digital monitoring system that integrates real-time monitoring, automatic data acquisition, in-depth analysis, and anomaly early warning is crucial for achieving transparency in the construction process, refined parameter control, and objective quality evaluation. It is an inevitable trend to promote the digitalization and intelligentization of water conservancy project construction quality management and ensure the safety of the national water network. Summary of the Invention

[0006] To address the challenges of controlling the concealed construction process and inconsistent construction quality of CSM cement-soil mixing walls, a digital monitoring method and system for CSM twin-wheel milling cement-soil mixing wall construction is provided. This system enables transparency in the CSM twin-wheel milling cement-soil mixing wall construction process, refined parameter control, and objective quality evaluation.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A digital monitoring method for the construction of CSM dual-wheel milling cement-soil mixing walls, applied to foundation seepage prevention in water conservancy projects, includes the following steps:

[0009] S1: Real-time collection of multi-source monitoring data of CSM construction machinery during the construction of the mixing wall through the on-site monitoring module; the on-site monitoring module includes a grouting flow meter, a grouting pressure gauge, a depth sensor, an RTK positioning instrument and a current transformer, which are used to collect grouting flow, grouting pressure, drilling depth, construction point coordinates and power current respectively;

[0010] S2: The edge computing module receives multi-source monitoring data collected by the field monitoring module through a wired cable, converts the electrical signal into a digital signal, and performs preliminary preprocessing and temporary storage on the digital signal to obtain a preprocessed digital signal;

[0011] S3: The data transmission module wirelessly transmits the preprocessed digital signal to the cloud intelligent processing module via a 4G cellular network;

[0012] S4: The cloud-based intelligent processing module performs data post-processing on the received digital signals. The post-processing includes classifying and organizing the data, forming visual charts, generating construction time-segmented parameter curves, and issuing abnormal warnings based on preset thresholds, thereby obtaining processed data and warning information.

[0013] S5: The user terminal can log in to the digital monitoring platform of the cloud intelligent processing module to view the current construction parameters or trace the historical construction data in real time, and export the construction monitoring data report according to the set format; wherein, the current construction parameters and historical construction data are generated based on the processed data and early warning information.

[0014] Furthermore, in step S1, the grouting flow meter is connected in series to the grouting pipe of the CSM construction machinery, the grouting pressure gauge is installed on the grouting pipe, the depth sensor consists of a photoelectric encoder, a transmission guide wheel and a base, and drives the transmission guide wheel to rotate through the transmission steel wire rope to measure the drilling depth, the RTK positioning instrument is welded to the construction machinery and adjusted by coordinates to monitor the construction point, and the current transformer is installed on the power line in the power distribution cabinet of the construction machinery to monitor the current change.

[0015] Furthermore, in step S2, the edge computing module is installed on the operating platform of the construction machinery to analyze the electrical signals of each sensing element and clean and temporarily store the monitoring data; in step S3, the data transmission module uses 4G cellular data transmission signals to achieve wireless communication.

[0016] Furthermore, the visualization charts in step S4 include the CSM mixing wall construction playback interface and construction parameter curves; in step S5, the user terminal is a PC, mobile phone or tablet computer, which can log in to the system to view the current construction parameters or view historical construction data in real time, and export detailed construction data and digital construction monitoring reports.

[0017] A digital monitoring system for CSM (Cement-Soil Mixing Wall) construction, applied to foundation seepage prevention in water conservancy projects, includes a field monitoring module, an edge computing module, a data transmission module, a cloud-based intelligent processing module, and a user terminal. The field monitoring module includes a grouting flow meter, a grouting pressure gauge, a depth sensor, an RTK (Real-Time Kinematic) positioning device, and a current transformer. The edge computing module is connected to the field monitoring module via a wired cable and receives monitoring data from the monitoring module. The data transmission module is a 4G cellular data transmission system that transmits digital signals from the edge computing module to the cloud-based intelligent processing module. The cloud-based intelligent processing module receives the digital signals, performs data post-processing, graphical data presentation, and data threshold warnings. The user terminal is a PC, mobile phone, or tablet computer used for real-time viewing or historical data tracing, and for exporting construction monitoring data reports in a set format.

[0018] Furthermore, the grouting flow meter is installed on the grouting pipe of the CSM construction machinery and connected in series in the grouting pipe.

[0019] Furthermore, the grouting pressure gauge is installed on the grouting pipe of the CSM construction machinery.

[0020] Furthermore, the depth sensor consists of a photoelectric encoder, a transmission guide wheel, and a base. The transmission steel wire rope drives the transmission guide wheel to rotate, and the photoelectric encoder realizes drilling depth measurement through a built-in algorithm.

[0021] Furthermore, the RTK positioning device is welded onto the construction machinery and adjusted by coordinates, and the current transformer is installed on the power line inside the power distribution cabinet of the construction machinery.

[0022] Furthermore, the edge computing module is installed on the operating platform of the construction machinery, and the data transmission module achieves wireless communication through 4G cellular data transmission signals.

[0023] The present invention has the following advantages:

[0024] This invention integrates sensor monitoring technology, Internet of Things technology, and wireless transmission technology to achieve digital and automated monitoring of the entire CSM cement-soil mixing pile construction process, effectively improving construction quality. Its advantages are mainly reflected in:

[0025] 1. Ensure quality: Monitor and strictly control all key construction parameters in real time, eliminate human intervention and falsification, and ensure that the wall is continuous and uniform and meets the standards for seepage prevention performance.

[0026] 2. Improved efficiency: Automatic data recording and uploading greatly reduces the workload of traditional manual recording and on-site supervision, saving manpower and management costs.

[0027] 3. Traceable Decision Making: All data is stored in the cloud, forming an immutable digital construction archive, providing accurate and reliable data support for quality traceability and subsequent evaluation, and enabling real-time early warning and timely rectification in case of anomalies, effectively promoting the intelligent management upgrade of hidden works in water conservancy projects. Attached Figure Description

[0028] Figure 1 This is a side view of a CSM dual-wheel milling cement-soil mixing wall construction digital monitoring system according to the present invention.

[0029] Figure 2 This is a front view of a CSM dual-wheel milling cement-soil mixing wall construction digital monitoring system according to the present invention.

[0030] Figure 3 This is a schematic diagram of the installation of the field monitoring equipment involved in this invention, wherein (a) is a schematic diagram of the installation of grouting flow meter 1 and grouting pressure meter 2; (b) is a schematic diagram of the installation of depth sensor 3; and (c) is a schematic diagram of the installation of RTK positioning device 4 and current transformer 5.

[0031] Figure 4 This is a flowchart illustrating the working principle of a digital monitoring system for CSM dual-wheel milling cement-soil mixing wall construction according to the present invention.

[0032] Figure 5 These are screenshots of the user terminal interface, where (a) is a screenshot of the CSM mixing wall construction playback interface and (b) is a CSM mixing wall construction parameter curve.

[0033] In the diagram: 1—Grouting flow meter; 2—Grouting pressure gauge; 3—Depth sensor; 4—RTK positioning device; 5—Current transformer; 6—Edge computing module; 7—Data transmission module; 8—Cloud intelligent processing module; 9—User terminal. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings and the system that has been initially developed as a pilot project in a certain project. Obviously, the described content is only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0035] like Figures 1-5 As shown in the figure, this invention provides a digital monitoring system for CSM (Cement-Soil Mixing Wall) construction, including a field monitoring module, an edge computing module 6, a data transmission module 7, a cloud-based intelligent processing module 8, and a user terminal 9. The field monitoring module includes a grouting flow meter 1, a grouting pressure gauge 2, a depth sensor 3, an RTK (Real-Time Kinematic) positioning device 4, and a current transformer 5. This monitoring system is suitable for digital monitoring of CSM (Cement-Soil Mixing Wall) construction in hydraulic foundation seepage prevention projects. By integrating sensor monitoring technology, Internet of Things (IoT) technology, and wireless transmission technology, it achieves digital and automated monitoring of the entire CSM cement-soil mixing pile construction process, thereby effectively improving construction quality.

[0036] like Figure 3 As shown, monitoring instruments, including a grouting flow meter 1, a grouting pressure gauge 2, a depth sensor 3, an RTK positioning device 4, and a current transformer 5, are installed at specific locations on the CSM dual-wheel milling cement-soil mixing wall construction machinery to form the on-site monitoring module, which monitors data during the construction process. The edge computing module 6, i.e., the monitoring host, is connected to the aforementioned monitoring instruments via a cable and receives electrical signals from the instruments. The data transmission module 7 is a 4G cellular data transmission system that transmits the digital signals from the edge computing module 6 to the cloud intelligent processing module 8. The cloud intelligent processing module 8 receives the digital signals, performs data post-processing, presents the data in graphical form, and provides data threshold warnings. The user terminal 9 is a PC, mobile phone, tablet, or other digital terminal that allows users to log in to the digital monitoring platform to view real-time data or trace past data, and also export construction monitoring data reports according to a set format.

[0037] Figure 4 The following is a flowchart illustrating the working principle of this invention, and the specific implementation process is as follows:

[0038] Step 1: Install the on-site monitoring equipment. Install the grouting flow meter 1, grouting pressure gauge 2, depth sensor 3, RTK positioning device 4, and current transformer 5 on the double-wheel milling cement-soil mixing wall construction machinery. Specifically: Grouting flow meter 1 is installed on the grouting pipe of the CSM construction machinery. Disconnect it at a suitable joint on the grouting pipe and connect the grouting flow meter 1 in series; Grouting pressure gauge 2 is installed on the grouting pipe of the CSM construction machinery, ensuring that the grouting pipe before and after the pressure gauge has at least one meter of straight section; Depth sensor 3 is connected in series with a round steel bar with a diameter of no more than 22mm and welded to the tower of the construction machinery. The rotation of the photoelectric encoder should be consistent with the linear displacement of the steel wire rope; RTK positioning device 4 is welded to an open and unobstructed location on the construction machinery; Current transformer 5 is installed on the power line inside the power distribution cabinet of the construction machinery.

[0039] Step Two: Install and debug the edge computing module 6. Install the monitoring host in the construction machinery control room or other space protected from rain and direct sunlight, and connect the field monitoring equipment to it via wired cable. Debug the monitoring instruments to ensure they are in normal working order. Calibrate the RTK locator's 4-axis coordinates so that the RTK locator can reflect the center point of the mixing wall.

[0040] Step 3: The data collected and temporarily stored by the edge computing layer is encrypted and transmitted to the cloud intelligent processing module 8 through the data transmission module 7.

[0041] Step 4: Build a cloud-based intelligent processing platform, deploy a database for data cleaning, classification, storage and management, establish an algorithm model to determine thresholds and provide early warnings for key parameters, and design a web platform to enable real-time dynamic display of construction conditions, query of historical data, automatic generation of reports and digital wall maps.

[0042] Step 5: Terminal Management and Use. Administrators can log in to the 9Record Cloud Platform through user terminals to view ongoing construction data in real time, as well as completed CSM cement-soil mixing wall construction data, such as... Figure 5 As shown, download the full construction process data report to provide decision support for evaluating the construction quality of CSM cement-soil mixing walls.

[0043] This invention also provides a digital monitoring method for the construction of CSM dual-wheel milling cement-soil mixing walls, applied to foundation seepage prevention in water conservancy projects, comprising the following steps:

[0044] S1: Real-time collection of multi-source monitoring data of CSM construction machinery during the construction of the mixing wall through the on-site monitoring module; the on-site monitoring module includes grouting flow meter 1, grouting pressure gauge 2, depth sensor 3, RTK positioning instrument 4 and current transformer 5, which are used to collect grouting flow, grouting pressure, drilling depth, construction point coordinates and power current respectively.

[0045] S2: Edge computing module 6 receives multi-source monitoring data collected by the field monitoring module through a wired cable, converts the electrical signal into a digital signal, and performs preliminary preprocessing and temporary storage on the digital signal to obtain a preprocessed digital signal;

[0046] S3: The data transmission module 7 wirelessly transmits the preprocessed digital signal to the cloud intelligent processing module 8 via a 4G cellular network;

[0047] S4: The cloud-based intelligent processing module 8 performs data post-processing on the received digital signals. The post-processing includes classifying and organizing the data, forming visual charts, generating construction time-segmented parameter curves, and issuing abnormal warnings based on preset thresholds, thereby obtaining processed data and warning information.

[0048] S5: User terminal 9 can log in to the digital monitoring platform of the cloud intelligent processing module to view the current construction parameters or trace the historical construction data in real time, and export the construction monitoring data report according to the set format; wherein, the current construction parameters and historical construction data are generated based on the processed data and early warning information.

[0049] The present invention has the following features and effects:

[0050] Real-time and precise monitoring: The on-site monitoring module, consisting of a grouting flow meter, pressure gauge, depth sensor, RTK positioning device and current transformer, can collect key parameters in CSM construction in real time. Combined with the preprocessing of the edge computing module and the threshold warning of the cloud intelligent processing module, the construction process is made transparent and the parameter control is refined, effectively avoiding human operation deviation and data fraud.

[0051] Full-process automation and efficient management: Adopting a wired acquisition + 4G wireless transmission architecture, it automatically completes data acquisition, conversion, uploading and storage, which greatly reduces the workload of manual recording and on-site supervision, and reduces labor and management costs.

[0052] Cloud-based traceability and decision support: All monitoring data is uploaded to the cloud-based intelligent processing module to form an unalterable digital construction archive. User terminals can view real-time or historical data at any time and export monitoring reports, providing a reliable basis for quality traceability, anomaly rectification, and subsequent project evaluation.

[0053] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A digital monitoring method for the construction of CSM dual-wheel milling cement-soil mixing walls, applied to foundation seepage prevention in water conservancy projects, characterized in that... Includes the following steps: S1: Real-time collection of multi-source monitoring data of CSM construction machinery during the construction of the mixing wall through the on-site monitoring module; the on-site monitoring module includes a grouting flow meter, a grouting pressure gauge, a depth sensor, an RTK positioning instrument and a current transformer, which are used to collect grouting flow, grouting pressure, drilling depth, construction point coordinates and power current respectively; S2: The edge computing module receives multi-source monitoring data collected by the field monitoring module through a wired cable, converts the electrical signal into a digital signal, and performs preliminary preprocessing and temporary storage on the digital signal to obtain a preprocessed digital signal; S3: The data transmission module wirelessly transmits the preprocessed digital signal to the cloud intelligent processing module via a 4G cellular network; S4: The cloud-based intelligent processing module performs data post-processing on the received digital signals. The post-processing includes classifying and organizing the data, forming visual charts, generating construction time-segmented parameter curves, and issuing abnormal warnings based on preset thresholds, thereby obtaining processed data and warning information. S5: The user terminal can log in to the digital monitoring platform of the cloud intelligent processing module to view the current construction parameters or trace the historical construction data in real time, and export the construction monitoring data report according to the set format; wherein, the current construction parameters and historical construction data are generated based on the processed data and early warning information.

2. The method according to claim 1, characterized in that, In step S1, the grouting flow meter is connected in series to the grouting pipe of the CSM construction machinery, the grouting pressure gauge is installed on the grouting pipe, the depth sensor consists of a photoelectric encoder, a transmission guide wheel and a base, and drives the transmission guide wheel to rotate through the transmission steel wire rope to measure the drilling depth, the RTK positioning instrument is welded to the construction machinery and adjusted by coordinates to monitor the construction point, and the current transformer is installed on the power line in the power distribution cabinet of the construction machinery to monitor the current change.

3. The method according to claim 1, characterized in that, In step S2, the edge computing module is installed on the operating platform of the construction machinery to analyze the electrical signals of each sensing element and clean and temporarily store the monitoring data; in step S3, the data transmission module uses 4G cellular data transmission signals to achieve wireless communication.

4. The method according to claim 1, characterized in that, The visualization charts in step S4 include the CSM mixing wall construction playback interface and construction parameter curves; in step S5, the user terminal is a PC, mobile phone or tablet computer. By logging into the system, users can view the current construction parameters or view historical construction data in real time, and export detailed construction data and digital construction monitoring reports.

5. A digital monitoring system for the construction of CSM dual-wheel milling cement-soil mixing walls, applied to foundation seepage prevention in water conservancy projects, characterized in that... The system includes a field monitoring module, an edge computing module, a data transmission module, a cloud-based intelligent processing module, and a user terminal. The field monitoring module includes a grouting flow meter (1), a grouting pressure gauge (2), a depth sensor (3), an RTK positioning device (4), and a current transformer (5). The edge computing module (6) is connected to the field monitoring module via a wired cable and receives monitoring data from the monitoring module. The data transmission module (7) is a 4G cellular data transmission system that transmits the digital signals from the edge computing module to the cloud-based intelligent processing module. The cloud-based intelligent processing module (8) receives the digital signals and performs data post-processing, graphical data presentation, and data threshold warning. The user terminal (9) is a PC, mobile phone, or tablet computer used for real-time viewing or historical data tracing, as well as exporting construction monitoring data reports in a set format.

6. The system according to claim 5, characterized in that, The grouting flow meter (1) is installed on the grouting pipe of the CSM construction machinery and connected in series in the grouting pipe.

7. The system according to claim 5, characterized in that, The grouting pressure gauge (2) is installed on the grouting pipe of the CSM construction machinery.

8. The system according to claim 5, characterized in that, The depth sensor (3) consists of a photoelectric encoder, a transmission guide wheel and a base. The transmission steel wire rope drives the transmission guide wheel to rotate, and the photoelectric encoder realizes the drilling depth measurement through the built-in algorithm.

9. The system according to claim 5, characterized in that, The RTK positioning device (4) is welded onto the construction machinery and adjusted by coordinates, and the current transformer (5) is installed on the power line inside the power distribution cabinet of the construction machinery.

10. The system according to claim 5, characterized in that, The edge computing module (6) is installed on the operating platform of the construction machinery, and the data transmission module (7) realizes wireless communication through 4G cellular data transmission signal.

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