Multi-source cooperative deformation monitoring system and monitoring method for underground pipeline in mining influence area

Abstract

The invention relates to a mining influence area buried pipeline multi-source cooperative deformation monitoring system and a monitoring method thereof, and belongs to the field of buried pipelines, and the system comprises a GNSS monitoring station which is used for monitoring the ground surface deformation condition near a buried pipeline in real time, and transmitting the monitoring data to a control center through a mobile network; the control center is used for receiving the monitoring data transmitted by the GNSS monitoring station and judging the deformation condition of the buried pipeline according to the monitoring data; the anti-deformation device is arranged near the buried pipeline and used for adjusting the shape of the anti-deformation device according to an instruction of the control center and resisting the influence of surface deformation on the buried pipeline; the method has the advantages that real data are obtained by adopting GNSS real-time monitoring, and the risk of theoretical calculation errors is reduced. The shape of the anti-deformation device can be automatically adjusted according to real-time deformation data, and it is guaranteed that the anti-deformation device is not affected by mining damage under the condition of deformation of different degrees.

Description

Technical Field

[0001] The present invention relates to a multi-source collaborative deformation monitoring system and a monitoring method for buried pipelines in the mining-influenced area, belonging to the field of buried pipelines, having the functions of monitoring and automatically righting against deformation, and being particularly suitable for the safety protection of buried pipelines within the scope affected by coal mining. Background Art

[0002] Buried pipelines are widely used in urban drainage projects, gas projects, petroleum projects and other fields, and are an important part of urban infrastructure. These pipelines are buried underground for a long time and are responsible for transporting important media such as liquids or gases. However, coal mining subsidence may cause varying degrees of damage such as pipeline deformation and cracking, thus affecting their normal operation and even triggering serious safety accidents.

[0003] Since buried pipelines are located underground, the mining subsidence deformation period is long and the deformation value is large. Monitoring personnel cannot directly observe potential risks, so a full-link deformation monitoring of buried pipelines is required. Traditional monitoring methods mainly rely on BOTDR (Brillouin Optical Time Domain Reflectometry) distributed optical fiber monitoring technology. The BOTDR technology realizes distributed monitoring of temperature and strain through the Brillouin scattering principle in the optical fiber, and has high precision and long sensing distance. However, the BOTDR technology has the following limitations:

[0004] 1. Low resolution: Usually 10 meters, which limits the monitoring points and makes it difficult to achieve high-precision deformation monitoring in complex environments.

[0005] 2. Single function: It can only monitor and cannot automatically give an alarm according to the allowable deformation value and start the anti-deformation device, and cannot actively protect buried pipelines.

[0006] 3. Poor adaptability: Lack of adaptability and flexibility, and it is difficult to meet the requirements of different engineering scenarios. In addition, traditional monitoring methods also have the following problems:

[0007] 1. Insufficient real-time performance: It cannot monitor surface deformation in real time, is difficult to capture tiny deformations in time, and the warning accuracy is insufficient.

[0008] 2. Weak data processing ability: The ability to process and analyze monitoring data is limited, and it is impossible to comprehensively evaluate the impact of surface deformation on buried pipelines.

[0009] 3. Poor economy: It cannot effectively reduce the damage probability of buried pipelines, and large-scale maintenance and replacement may be required later, with high costs.

[0010] 4. Weak environmental adaptability: Insufficient stability under harsh natural conditions and poor long-term operation reliability.

[0011] In summary, the disadvantages of traditional monitoring methods are insufficient monitoring accuracy, lack of automatic protection function, poor adaptability and flexibility, and it is difficult to meet the safety monitoring requirements of buried pipelines under complex geological conditions. Therefore, there is an urgent need for a new multi-source collaborative deformation monitoring system and its monitoring method for buried pipelines in the mining-influenced area to overcome the defects of the existing technology, improve the monitoring accuracy and anti-deformation ability, and ensure the safe operation of buried pipelines. Summary of the Invention

[0012] To overcome the defects of the existing technology, the present invention provides a multi-source collaborative deformation monitoring system and its monitoring method for buried pipelines in the mining-influenced area. The technical solution of the present invention is as follows:

[0013] A multi-source collaborative deformation monitoring system for buried pipelines in the mining-influenced area, characterized by comprising:

[0014] A GNSS monitoring station for real-time monitoring of the surface deformation near the buried pipeline and transmitting the monitoring data to the control center through a mobile network;

[0015] A control center for receiving the monitoring data transmitted by the GNSS monitoring station and judging the deformation condition of the buried pipeline according to the monitoring data;

[0016] An anti-deformation device is arranged near the buried pipeline and is used to adjust its own shape according to the instruction of the control center to resist the influence of surface deformation on the buried pipeline;

[0017] The GNSS monitoring station includes a plurality of monitoring points distributed around the buried pipeline for obtaining surface subsidence and horizontal movement deformation data; the number of the monitoring points is not less than 5 and is evenly distributed on both sides of the buried pipeline.

[0018] The control center includes a deformation prediction module. The deformation prediction module calculates the influence factor A of mining on the buried pipeline using the probability integral method according to the geological mining conditions at the location of the pipeline, such as the thickness of the loose layer, the mining depth, the mining thickness, and the physical property data of the overlying rock formation. The influence factor A includes the subsidence value W, the horizontal movement value U, the horizontal deformation value ε, the tilt value i, and the curvature K; the control center also compares the influence factor A with the allowable deformation value B of the buried pipeline to judge whether it is necessary to start the anti-deformation device. If the influence factor A is less than the allowable deformation value B, the mining will not affect the buried pipeline, and continuous monitoring can be carried out without special treatment; if the influence factor A is greater than the allowable deformation value B, the mining will affect the buried pipeline, and at the same time, the anti-deformation device is started.

[0019] The control center is also used to calculate the mining influence factor A using the probability integral method according to the geological mining conditions. The calculation formula of the mining influence factor A is as follows:

[0020] For predicting the movement and deformation of any point within the surface movement basin, the horizontal coordinate for calculation is the direction passing through the lower calculation boundary of the inclined main section within the mined-out area and parallel to the strike, and the vertical coordinate for calculation is the direction passing through the left calculation boundary of the strike main section within the mined-out area and parallel to the inclined direction. The movement and deformation calculation formulas for any point (x, y) at an angle are as follows: Surface subsidence formula: For any point (x, y) at an angle, the movement and deformation calculation formulas are as follows: Surface subsidence formula:

[0021]

[0022] Surface tilt formula:

[0023]

[0024] Surface curvature formula:

[0025]

[0026] Surface horizontal movement formula:

[0027]

[0028] Surface horizontal movement formula:

[0029]

[0030]

[0031] In the formula: D - mined coal seam area; ξ, η - integration variables; W max - maximum surface subsidence value, mm; i max - maximum surface tilt value, mm / m; K max - maximum surface curvature value, 10 -3 / m; U max - maximum surface horizontal movement value, mm; ε max - maximum surface horizontal deformation value, mm / m; m - normal mining thickness of the coal seam, mm; q - subsidence coefficient; α - coal seam dip angle, deg; b - horizontal movement coefficient; r - main influence radius, m;

[0032] A = f(W, U, ε, i, K), where W is the subsidence value, U is the horizontal movement value, ε is the horizontal deformation value, i is the tilt value, and K is the curvature; the control center is also used to compare the mining influence factor A with the allowable deformation value B of the buried pipeline to determine whether it is necessary to activate the anti-deformation device.

[0033] The control center also includes a data storage module, which is used to store the monitoring data obtained by the GNSS monitoring stations for subsequent analysis and evaluation; the data storage module is also used to store the calculation results of the mining influence factor A and the adjustment historical data of the anti-deformation device. The anti-deformation device includes an adjustable support structure, which automatically adjusts its shape according to the instructions of the control center to adapt to different degrees of deformation; the adjustable support structure includes a telescopic support unit, and the telescopic length of the support unit is adjusted according to the mining influence factor A, and the adjustment formula is as follows: L = k×(W + U + ε), where L is the telescopic length of the support unit, k is the adjustment coefficient, W is the subsidence value, U is the horizontal movement value, and ε is the horizontal deformation value.

[0034] The anti-deformation device also includes a warning device, which emits a warning signal when the monitored deformation value exceeds the anti-deformation ability of the device; the warning device includes a sound alarm and a light alarm, which are used to emit a warning signal when the deformation value exceeds the set threshold.

[0035] The adjustable support structure also includes an angle adjustment unit, which is used to adjust the angle of the support structure according to the surface inclination value T, and the angle adjustment formula is as follows:

[0036] θ = arctan(T), where θ is the angle of the support structure and T is the surface inclination value.

[0037] The anti-deformation device also includes a deformation adjustment algorithm module, which automatically adjusts the shape of the support structure according to the mining influence factor A. The specific steps are as follows:

[0038] (1) Calculate the deformation influence factor: A = f(W, U, ε, i, K), where W is the subsidence value, U is the horizontal movement value, ε is the horizontal deformation value, i is the inclination value, and K is the curvature;

[0039] (2) Determine the adjustment parameters:

[0040] Telescopic length adjustment: L = k×(W + U + ε), where L is the telescopic length of the support unit and k is the adjustment coefficient.

[0041] Angle adjustment: θ = arctan(T), where θ is the angle of the support structure.

[0042] (3) Execute the adjustment:

[0043] Telescopic adjustment: Adjust the length of each support unit according to the calculated telescopic length L.

[0044] Angle adjustment: Adjust the angle of the support structure according to the calculated angle θ.

[0045] Real-time feedback: The adjusted form data is fed back to the control center, and the control center continues to adjust according to the real-time monitoring data to ensure the safety of the buried pipelines.

[0046] The anti-deformation device further includes a rotating unit located below the support unit for resisting horizontal movement. The rotating unit includes a rotating shaft and a rotating support plate. The rotating support plate is connected to the support unit through the rotating shaft and rotates and adjusts according to the horizontal movement value. The adjustment formula is as follows: where θ is the rotation angle, U is the horizontal movement value, and L is the telescopic length of the support unit. A monitoring method for a multi-source collaborative deformation monitoring system of buried pipelines in a mining-influenced area includes the following steps:

[0047] (1) Monitoring and data transmission

[0048] 1.1 Monitoring point layout: A plurality of GNSS monitoring points are arranged around the buried pipelines and evenly distributed on both sides of the buried pipelines. These monitoring points are used to obtain the surface subsidence value, horizontal movement value, horizontal deformation value, tilt value, and curvature deformation data.

[0049] 1.2 Data transmission: The GNSS monitoring station transmits the monitoring data to the control center in real time through the mobile network.

[0050] (2) Data processing and analysis

[0051] 2.1 Receiving data: The control center receives the monitoring data transmitted by the GNSS monitoring station.

[0052] 2.2 Calculating the influence factor and comparing with the allowable deformation value: The deformation prediction module of the control center uses the probability integral method to calculate the influence factor A of mining on the buried pipelines. Comparison and decision-making: The control center compares the calculated influence factor A with the allowable deformation value B of the buried pipelines. If A < B, the mining will not affect the buried pipelines, and the system continues to monitor without special treatment. If A > B, the mining will affect the buried pipelines, and the anti-deformation device is activated.

[0053] (3) Adjustment of the anti-deformation device

[0054] 3.1 Activation of the deformation adjustment algorithm module: When A > B, the control center activates the deformation adjustment algorithm module.

[0055] 3.2 Determining the adjustment parameters:

[0056] Telescopic length adjustment: L = k×(W + U + ε), where L is the telescopic length of the support unit and k is the adjustment coefficient.

[0057] 3.3 Angle adjustment: θ = arctan(T), where θ is the angle of the support structure.

[0058] Execute adjustment:

[0059] 3.4 Telescopic adjustment: Adjust the length of each support unit according to the calculated telescopic length L.

[0060] 3.5 Angular adjustment: Adjust the angle of the support structure according to the calculated angle θ.

[0061] 3.6 Real-time feedback: Feed back the adjusted form data to the control center, and the control center continues to adjust according to the real-time monitoring data to ensure the safety of the buried pipeline.

[0062] (4) Adjustment of the rotating unit

[0063] 4.1 Rotating unit startup: The rotating unit in the anti-deformation device is located at the lower part of the support unit and is used to resist horizontal movement;

[0064] 4.2 Execute rotational adjustment: Adjust the angle of the rotating support plate according to the calculated rotation angle θ to resist the influence of horizontal movement on the buried pipeline;

[0065] (5) Warning and data storage

[0066] 5.1 Warning device startup: When the monitored deformation value exceeds the anti-deformation ability of the device, the warning device emits a warning signal;

[0067] 5.2 Data storage:

[0068] The data storage module of the control center is used to store the monitoring data obtained by the GNSS monitoring station, as well as the calculation results of the mining influence factor A and the adjustment history data of the anti-deformation device;

[0069] (6) Real-time feedback and dynamic adjustment

[0070] 6.1 Real-time feedback: The adjusted form data is fed back to the control center in real time, and the control center continues to adjust according to the real-time monitoring data to ensure the safety of the buried pipeline;

[0071] 6.2 Dynamic adjustment: Dynamically adjust the form of the support structure according to the real-time monitoring data to ensure that the buried pipeline always remains stable.

[0072] The advantages of the present invention are:

[0073] 1. For buried pipelines, GNSS real-time monitoring is adopted to obtain real data, reducing the risk of theoretical calculation errors.

[0074] 2. After determining the influence of mining on the buried pipeline, the anti-deformation device is buried in advance to reduce the risk of the buried pipeline being damaged, and further ensure the risk of oil and gas leakage.

[0075] 3. The anti-deformation device can automatically adjust its form according to the real-time deformation data to ensure that it is not affected by mining damage under different degrees of deformation.

[0076] 4. After the working face is stabilized and subsided, the anti-deformation device can be recovered and reused to save costs.

[0077] 5. Through the monitoring system and the anti-deformation device, the safety of buried pipelines can be protected, the damage probability of buried pipelines is reduced, and large-scale replacement of buried pipelines in the later stage is avoided, which has strong economic value.

[0078] 6. For buried pipelines affected by mining, through the monitoring system and the anti-deformation device, the safety of buried pipelines can be protected, the damage probability of buried pipelines is reduced, and large-scale replacement of buried pipelines in the later stage is avoided, which has strong economic value.

[0079] The present invention is applicable to buried oil and gas pipelines within the scope affected by coal mine mining, including the whole process before, during and after coal mine mining. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] Figure 1 is the flow chart of the monitoring method of the present invention.

[0081] Figure 2 is the block diagram of the main structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0082] The present invention will be further described below in conjunction with specific embodiments, and the advantages and features of the present invention will become clearer as the description proceeds. However, these embodiments are exemplary only and do not constitute any limitation to the scope of the present invention. Those skilled in the art should understand that the details and forms of the technical solution of the present invention can be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements all fall within the protection scope of the present invention.

[0083] See Figure 1 and Figure 2, the present invention relates to a multi-source collaborative deformation monitoring system for buried pipelines in the mining-affected area, including a GNSS monitoring station 2 for real-time monitoring of the surface deformation near the buried pipelines and transmitting the monitoring data to the control center through a mobile network; a control center 1 for receiving the monitoring data transmitted by the GNSS monitoring station and judging the deformation condition of the buried pipelines according to the monitoring data; and an anti-deformation device 3 arranged near the buried pipelines for adjusting its own shape according to the instruction of the control center to resist the influence of surface deformation on the buried pipelines. Among them, the control center includes a deformation prediction module, and the deformation prediction module calculates the influence factor A of mining on the buried pipelines by using the probability integral method according to the monitoring data. The influence factor A includes the subsidence value W, the horizontal movement value U, the horizontal deformation value ε, the inclination value i, and the curvature K. The control center also compares the influence factor A with the allowable deformation value B of the buried pipelines to judge whether it is necessary to start the anti-deformation device. If the influence factor A is less than the allowable deformation value B, the mining will not affect the buried pipelines, and continuous monitoring can be carried out without special treatment. If the influence factor A is greater than the allowable deformation value B, the mining will affect the buried pipelines.

[0084] The advantages of the above structure are as follows:

[0085] 1. Real-time monitoring and high-precision positioning

[0086] Application of GNSS monitoring station: The GNSS monitoring station can real-time monitor the displacement change of the surface and provide millimeter-level positioning accuracy. By arranging multiple GNSS monitoring points near the buried pipelines, comprehensive monitoring of surface deformation can be realized, tiny deformations can be captured in time, and the early warning accuracy can be improved.

[0087] Multi-scenario applicability: The GNSS monitoring station is not only applicable to geological disaster monitoring, such as landslides, debris flows, ground collapses, etc., but also widely used in engineering structure safety monitoring, such as bridges, dams, high-rise buildings, mines, etc. This multi-scenario applicability makes the monitoring system of the present invention have a wide range of applications.

[0088] 2. Intelligence and automation

[0089] Functions of the control center: The control center receives the monitoring data transmitted by the GNSS monitoring station and conducts real-time analysis and decision-making according to these data. By using the probability integral method to calculate the influence factor A of mining on the buried pipelines, including the subsidence value W, the horizontal movement value U, the horizontal deformation value ε, the inclination value i, and the curvature K, the control center can accurately judge the deformation condition of the buried pipelines.

[0090] Automated adjustment: By comparing the influence factor A with the allowable deformation value B of the buried pipeline, the control center can automatically determine whether to activate the anti-deformation device. If the influence factor A is less than the allowable deformation value B, continuous monitoring is sufficient without special treatment; if the influence factor A is greater than the allowable deformation value B, the anti-deformation device is automatically activated to achieve intelligent management.

[0091] 3. Efficient data processing and transmission

[0092] Data transmission: The GNSS monitoring station transmits the monitoring data to the control center in real time through the mobile network to ensure the timeliness and accuracy of the data. This efficient data transmission method enables the monitoring system to quickly respond to surface deformation, take timely measures, and avoid potential safety hazards. Data processing and analysis: The control center processes and analyzes the monitoring data in real time. Once an abnormal situation is detected, an alarm is immediately activated, so as to comprehensively grasp the geological conditions of the monitored area, realize the overall scheduling of disaster relief prevention, and build an intelligent geological disaster monitoring and early warning system.

[0093] 4. Economy and applicability

[0094] Economy: The anti-deformation device can automatically adjust its shape according to the real-time deformation data to resist the influence of surface deformation on the buried pipeline. This automatic adjustment ability reduces manual intervention and maintenance costs. In addition, the anti-deformation device can be recycled and reused, further saving costs.

[0095] Applicability: The monitoring system and anti-deformation device of the present invention are applicable to buried oil and gas pipelines within the influence range of coal mining, including the whole process before, during, and after coal mining. This wide applicability enables the present invention to provide comprehensive protection for buried pipelines at different stages.

[0096] 5. Strong environmental adaptability

[0097] Stability in harsh environments: The GNSS monitoring station has good environmental adaptability and can operate stably under harsh natural conditions. For example, in areas where signals are easily interrupted, such as tunnels and forests, the GNSS monitoring station can use inertial navigation technology for blind spot compensation to ensure the continuity and accuracy of monitoring data.

[0098] Reliability of long-term monitoring: The monitoring system of the present invention can conduct long-term and stable monitoring, providing continuous guarantee for the safe operation of buried pipelines. Through real-time monitoring and data analysis, the system can timely detect potential problems and take corresponding measures to ensure the long-term stable operation of buried pipelines.

[0099] 6. Improve safety

[0100] Real-time warning: Through real-time monitoring and data analysis, the monitoring system of the present invention can promptly detect the deformation of buried pipelines and issue warning signals. This real-time warning capability enables relevant departments to take prompt measures to avoid safety accidents such as oil and gas leakage caused by pipeline deformation, ensuring public safety and environmental safety.

[0101] Multiple monitoring means: The present invention combines GNSS monitoring stations and anti-deformation devices to form multiple monitoring and protection means. This multiple safeguard mechanism improves the reliability of the monitoring system and ensures the safe operation of buried pipelines under complex geological conditions.

[0102] The GNSS monitoring station includes multiple monitoring points distributed around the buried pipeline for obtaining surface subsidence and horizontal movement deformation data; the number of monitoring points is not less than 5 and is evenly distributed on both sides of the buried pipeline.

[0103] The control center is also used to calculate the mining influence factor A based on the monitoring data, and the calculation formula of the mining influence factor A is as follows:

[0104] A = f(W, U, ε, i, K), where W is the subsidence value, U is the horizontal movement value, ε is the horizontal deformation value, i is the inclination value, and K is the curvature; the control center is also used to compare the mining influence factor A with the allowable deformation value B of the buried pipeline to determine whether to activate the anti-deformation device. The setting of the calculation formula of the mining influence factor A achieves the following advantages: 1. Precise assessment of mining influence By calculating the mining influence factor A, the influence of mining activities on buried pipelines can be precisely evaluated. This precise assessment is based on multiple key parameters and can comprehensively reflect the actual influence of surface deformation on buried pipelines.

[0105] 2. Real-time monitoring and dynamic adjustment

[0106] The control center can receive the monitoring data transmitted by the GNSS monitoring station in real time and dynamically calculate the mining influence factor A based on these data. This real-time monitoring and dynamic adjustment capability enables the system to promptly respond to changes in surface deformation and ensure the safety of buried pipelines.

[0107] 3. Scientific decision-making and automated management

[0108] By comparing the mining influence factor A with the allowable deformation value B of the buried pipeline, the control center can scientifically determine whether to activate the anti-deformation device. This automated management method reduces manual intervention and improves the reliability and efficiency of the system.

[0109] The anti-deformation device includes an adjustable support structure that automatically adjusts its shape according to the instructions of the control center to adapt to different degrees of deformation. The adjustable support structure includes a telescopic support unit, and the telescopic length of the support unit is adjusted according to the mining influence factor A. The adjustment formula is as follows: L = k×(W + U + ε), where L is the telescopic length of the support unit, k is the adjustment coefficient, W is the subsidence value, U is the horizontal movement value, and ε is the horizontal deformation value.

[0110] The anti-deformation device further includes a warning device that emits a warning signal when the monitored deformation value exceeds the anti-deformation ability of the device. The warning device includes a sound alarm and a light alarm, which are used to emit a warning signal when the deformation value exceeds the set threshold.

[0111] The control center further includes a data storage module for storing the monitoring data obtained by the GNSS monitoring station for subsequent analysis and evaluation. The data storage module is also used to store the calculation results of the mining influence factor A and the adjustment historical data of the anti-deformation device.

[0112] The adjustable support structure further includes an angle adjustment unit for adjusting the angle of the support structure according to the surface tilt value T. The angle adjustment formula is as follows:

[0113] θ = arctan(T), where θ is the angle of the support structure and T is the surface tilt value.

[0114] The structural design and function realization of the anti-deformation device have many significant advantages, which together improve the safety, reliability and economy of the buried pipeline under the influence of mining. The advantages are as follows:

[0115] 1. Adaptive deformation adjustment ability

[0116] Adjustable support structure: The adjustable support structure of the anti-deformation device can automatically adjust its shape according to the instructions of the control center to adapt to different degrees of deformation. This adaptive ability enables the device to respond to surface deformation in real time and ensure the stability of the buried pipeline under various complex geological conditions.

[0117] Telescopic length adjustment formula: The telescopic length of the support unit is adjusted according to the mining influence factor A. The adjustment formula L = k×(W + U + ε), where L is the telescopic length of the support unit, k is the adjustment coefficient, W is the subsidence value, U is the horizontal movement value, and ε is the horizontal deformation value, can accurately adjust the telescopic length to resist the influence of surface deformation on the buried pipeline.

[0118] 2. Real-time monitoring and early warning function

[0119] Warning device: When the detected deformation value exceeds the anti-deformation ability of the device, the warning device can emit a warning signal. This real-time monitoring and early warning function enables relevant personnel to take timely measures to avoid damage to buried pipelines due to excessive deformation.

[0120] Multiple alarm methods: The warning device includes a sound alarm and a light alarm, which can emit a warning signal when the deformation value exceeds the set threshold. This diverse alarm method ensures that relevant personnel can receive the alarm in a timely manner under different environmental conditions.

[0121] 3. Data storage and analysis capabilities

[0122] Data storage module: The data storage module in the control center is used to store the monitoring data obtained by the GNSS monitoring station for subsequent analysis and evaluation. This data storage function not only supports real-time monitoring but also provides a data basis for long-term geological deformation analysis and prediction.

[0123] Historical data record: The data storage module is also used to store the calculation results of the mining influence factor A and the adjustment historical data of the anti-deformation device. These historical data are of great significance for evaluating the long-term performance of the device and optimizing the adjustment strategy.

[0124] 4. Angle adjustment function

[0125] Angle adjustment unit: The adjustable support structure also includes an angle adjustment unit for adjusting the angle of the support structure according to the surface tilt value T. The angle adjustment formula θ = arctan(T) ensures that the support structure can be adjusted to the optimal angle according to the actual tilt of the surface to resist tilt deformation.

[0126] All-round protection: Through the angle adjustment function, the device can not only resist deformation in the horizontal and vertical directions but also cope with surface tilt deformation, providing all-round protection for buried pipelines.

[0127] 5. Improved economy and applicability

[0128] Economy: Through precise adjustment and real-time monitoring, the anti-deformation device can effectively reduce the damage probability of buried pipelines, avoiding large-scale later maintenance and replacement work, and has significant economic value.

[0129] Applicability: The anti-deformation device is applicable to a variety of engineering scenarios, including the whole process before, during, and after coal mining, and has wide applicability.

[0130] 6. Enhanced safety

[0131] Real-time protection: Through real-time monitoring and automatic adjustment, the anti-deformation device can take immediate measures when surface deformation occurs, protecting buried pipelines from damage and significantly improving the safety of buried pipelines.

[0132] Prevention first: By arranging anti-deformation devices in advance and adjusting according to real-time monitoring data, the system can effectively prevent the deformation or damage of buried pipelines due to mining activities, reducing potential safety accidents.

[0133] 7. Strong environmental adaptability

[0134] Stability in harsh environments: Both the anti-deformation device and the GNSS monitoring station have good environmental adaptability and can operate stably under harsh natural conditions, ensuring the continuity and accuracy of monitoring data.

[0135] Long-term stability: Through real-time monitoring and dynamic adjustment, the system can operate stably for a long time, providing continuous guarantee for the safe operation of buried pipelines.

[0136] Through functions such as adaptive deformation adjustment, real-time monitoring and early warning, data storage and analysis, and angle adjustment, the safety, reliability, and economy of buried pipelines under mining influence are significantly improved. These advantages make the anti-deformation device of the present invention have important value and broad application prospects in practical applications.

[0137] The anti-deformation device further includes a deformation adjustment algorithm module, and the deformation adjustment algorithm module automatically adjusts the shape of the support structure according to the mining influence factor A. The specific steps are as follows:

[0138] (1) Calculate the deformation influence factor: A = f(W, U, ε, i, K), where W is the subsidence value, U is the horizontal movement value, ε is the horizontal deformation value, i is the inclination value, and K is the curvature;

[0139] (2) Determine the adjustment parameters:

[0140] Adjustment of telescopic length: L = k × (W + U + ε), where L is the telescopic length of the support unit and k is the adjustment coefficient;

[0141] Adjustment of angle: θ = arctan(T), where θ is the angle of the support structure;

[0142] (3) Execute the adjustment:

[0143] Telescopic adjustment: Adjust the length of each support unit according to the calculated telescopic length L;

[0144] Angle adjustment: Adjust the angle of the support structure according to the calculated angle θ;

[0145] Real-time feedback: The adjusted morphological data is fed back to the control center, which continues to adjust according to the real-time monitoring data to ensure the safety of the buried pipelines.

[0146] The deformation adjustment algorithm module and its working process in the anti-deformation device have significant advantages. They not only enhance the functionality and reliability of the device but also improve its adaptability in complex environments. Specifically:

[0147] 1. Intelligent and automatic adjustment

[0148] The deformation adjustment algorithm module can automatically adjust the morphology of the support structure according to the real-time monitoring data, achieving intelligent and automatic management. This automatic adjustment ability reduces manual intervention and improves the reliability and efficiency of the system.

[0149] 2. Precise evaluation and dynamic response

[0150] By calculating the deformation influence factor A = f(W, U, ε, i, K), the system can accurately evaluate the impact of mining activities on buried pipelines. This precise evaluation is based on multiple key parameters and can comprehensively reflect the actual impact of surface deformation on buried pipelines.

[0151] 3. Real-time monitoring and dynamic adjustment

[0152] The deformation adjustment algorithm module can receive the monitoring data transmitted by the GNSS monitoring station in real time and dynamically adjust the morphology of the support structure according to these data. This real-time monitoring and dynamic adjustment ability enables the system to respond promptly to changes in surface deformation and ensure the safety of buried pipelines.

[0153] 4. Scientific decision-making and optimized adjustment

[0154] By calculating the telescopic length L = k×(W + U + ε) and the angle θ = arctan(T), the deformation adjustment algorithm module can scientifically determine the adjustment parameters. This adjustment based on scientific formulas ensures the accuracy and reliability of the morphological adjustment of the support structure.

[0155] 5. Improve safety

[0156] Through real-time monitoring and dynamic adjustment, the deformation adjustment algorithm module can take immediate measures when surface deformation occurs, protecting the buried pipelines from damage and significantly improving the safety of the buried pipelines.

[0157] 6. Economy and applicability

[0158] The deformation adjustment algorithm module reduces the damage probability of buried pipelines through precise adjustment and real-time monitoring, avoiding large-scale later maintenance and replacement work, and has significant economic value. In addition, this module is applicable to a variety of engineering scenarios and has wide applicability.

[0159] 7. Strong environmental adaptability

[0160] The deformation adjustment algorithm module can operate stably under harsh natural conditions, ensuring the continuity and accuracy of monitoring data. This strong environmental adaptability enables the device to operate stably for a long time under various complex geological conditions, providing continuous guarantee for the safe operation of buried pipelines.

[0161] 8. Data storage and analysis capabilities

[0162] The data storage module of the control center is used to store the monitoring data obtained by the GNSS monitoring station for subsequent analysis and evaluation. This data storage function not only supports real-time monitoring but also provides a data basis for long-term geological deformation analysis and prediction.

[0163] In summary, the deformation adjustment algorithm module and its working process in the anti-deformation device significantly improve the safety, reliability, and economy of buried pipelines under mining influence through functions such as intelligent and automatic adjustment, precise evaluation and dynamic response, real-time monitoring and dynamic adjustment. These advantages make the anti-deformation device of the present invention have important value and broad application prospects in practical applications.

[0164] The anti-deformation device further includes a rotation unit, which is located below the support unit and is used to resist horizontal movement; the rotation unit includes a rotating shaft and a rotating support plate, and the rotating support plate is connected to the support unit through the rotating shaft, and the rotating support plate rotates and adjusts according to the horizontal movement value U, and the adjustment formula is as follows: Where, θ is the rotation angle, U is the horizontal movement value, and L is the telescopic length of the support unit.

[0165] The rotation unit of the anti-deformation device not only improves the functionality and reliability of the device but also enhances its adaptability in complex environments.

[0166] The surface of the rotation unit has strong rigidity, large rotation bearing capacity, and long product life. This means that even under high loads and frequent use, the rotation unit can maintain good performance, reducing the frequency of maintenance and replacement and lowering the long-term operation cost.

[0167] The design of the rotation unit is extremely compact, achieving a minimum interference profile. This design not only saves space but also enables the device to adapt to various limited space environments, improving its applicability in different application scenarios.

[0168] The rotation unit can perform real-time rotation adjustment according to the horizontal movement value. This real-time adjustment ability enables the device to quickly respond to surface deformation, timely adjust its posture, and ensure the safety of buried pipelines.

[0169] Through real-time monitoring and dynamic adjustment, the rotating unit can issue a warning signal in a timely manner when the horizontal movement exceeds the set threshold, reminding relevant personnel to take measures. This early warning mechanism significantly improves the safety of buried pipelines and reduces potential safety accidents.

[0170] The design of the rotating unit not only improves the performance of the device but also reduces the maintenance cost. Its durability and high efficiency enable the device to operate stably in the long term, reducing the additional costs brought by repairs and replacements. In addition, this design is applicable to a variety of engineering scenarios and has wide applicability.

[0171] The rotating unit can not only resist horizontal movement but also work in coordination with other functional modules (such as telescopic units and angle adjustment units) to provide comprehensive protection. This versatility enables the device to effectively protect buried pipelines under various complex geological conditions.

[0172] In summary, the design of the rotating unit of the anti-deformation device significantly improves the safety, reliability, and economy of buried pipelines affected by mining activities through functions such as high-precision control, strong load-bearing capacity, compact design, real-time monitoring, and dynamic adjustment. These advantages make the anti-deformation device of the present invention have important value and broad application prospects in practical applications. The working principle of the present invention is as follows:

[0173] The multi-source collaborative deformation monitoring system for buried pipelines in the mining-affected area includes:

[0174] GNSS monitoring station: It is used to monitor the surface deformation situation near the buried pipeline in real time and transmit the monitoring data to the control center through the mobile network.

[0175] Control center: Receive the monitoring data transmitted by the GNSS monitoring station and analyze and make decisions based on these data.

[0176] Anti-deformation device: Set near the buried pipeline, and adjust its own shape according to the instructions of the control center to resist the influence of surface deformation on the buried pipeline.

[0177] The specific steps are as follows:

[0178] (1) Monitoring and data transmission

[0179] Monitoring point layout:

[0180] Arrange multiple GNSS monitoring points (not less than 5) around the buried pipeline, evenly distributed on both sides of the buried pipeline. These monitoring points are used to obtain deformation data such as the surface subsidence value W, horizontal movement value U, horizontal deformation value ε, tilt value i, and curvature K.

[0181] Data transmission:

[0182] The GNSS monitoring station transmits the monitoring data to the control center in real time through the mobile network to ensure the timeliness and accuracy of the data.

[0183] (2) Data processing and analysis

[0184] Receiving data: The control center receives the monitoring data transmitted by the GNSS monitoring station.

[0185] Calculating the influence factor and comparing with the allowable deformation value: The deformation prediction module in the control center uses the probability integral method to calculate the influence factor A of the mining on the buried pipeline. Comparison and decision-making: The control center compares the calculated influence factor A with the allowable deformation value B of the buried pipeline. If A < B, the mining will not affect the buried pipeline, and the system continues to monitor without special treatment. If A > B, the mining will affect the buried pipeline, and the system activates the anti-deformation device.

[0186] (3) Adjustment of the anti-deformation device

[0187] Activating the deformation adjustment algorithm module: When A > B, the control center activates the deformation adjustment algorithm module.

[0188] Determining the adjustment parameters:

[0189] Adjusting the telescopic length: L = k × (W + U + ε), where L is the telescopic length of the support unit and k is the adjustment coefficient.

[0190] Adjusting the angle: θ = arctan(T), where θ is the angle of the support structure.

[0191] Performing the adjustment:

[0192] Telescopic adjustment: Adjust the length of each support unit according to the calculated telescopic length L.

[0193] Angle adjustment: Adjust the angle of the support structure according to the calculated angle θ.

[0194] Real-time feedback: Feed back the adjusted form data to the control center, and the control center continues to adjust according to the real-time monitoring data to ensure the safety of the buried pipeline.

[0195] (4) Adjustment of the rotating unit

[0196] Activating the rotating unit:

[0197] The rotating unit in the anti-deformation device is located at the lower part of the support unit and is used to resist horizontal movement. Performing the rotation adjustment: Adjust the angle of the rotating support plate according to the calculated rotation angle θ to resist the influence of horizontal movement on the buried pipeline.

[0198] (5) Warning and data storage

[0199] Warning device activation: When the monitored deformation value exceeds the anti-deformation ability of the device, the warning device emits a warning signal.

[0200] The warning device includes a sound alarm and a light alarm, which are used to emit a warning signal when the deformation value exceeds the set threshold.

[0201] Data storage:

[0202] The data storage module of the control center is used to store the monitoring data obtained by the GNSS monitoring station, as well as the calculation results of the mining influence factor A and the adjustment historical data of the anti-deformation device.

[0203] These data are used for subsequent analysis and evaluation, providing a basis for the optimization and improvement of the system.

[0204] (6) Real-time feedback and dynamic adjustment

[0205] Real-time feedback: The adjusted morphological data is fed back to the control center in real time, and the control center continues to adjust according to the real-time monitoring data to ensure the safety of the buried pipeline.

[0206] Dynamic adjustment: The system can dynamically adjust the morphology of the support structure according to the real-time monitoring data to ensure that the buried pipeline always remains stable under various complex geological conditions.

[0207] The present invention realizes the following advantages:

[0208] Intelligence and automation: The system reduces manual intervention through intelligent algorithms and automatic adjustment, improving the reliability and efficiency of the system.

[0209] Accurate evaluation and dynamic response: Through real-time monitoring and dynamic adjustment, the system can accurately evaluate the impact of mining activities on buried pipelines and take timely measures to ensure the safety of buried pipelines. Economy and applicability: The system reduces the damage probability of buried pipelines through accurate adjustment and real-time monitoring, avoiding large-scale maintenance and replacement work in the later stage, and has significant economic value. In addition, the system is applicable to a variety of engineering scenarios and has wide applicability.

[0210] Strong environmental adaptability: The system can operate stably under harsh natural conditions, ensuring the continuity and accuracy of monitoring data, and providing continuous guarantee for the safe operation of buried pipelines.

[0211] The multi-source collaborative deformation monitoring system for buried pipelines in the mining influence area of the present invention can achieve comprehensive protection of buried pipelines when affected by mining, significantly improving the safety and economy of buried pipelines.

[0212] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered by the protection scope of the present invention.

Claims

1. A multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas, characterized in that: include: GNSS monitoring station, used to monitor the ground deformation near the buried pipeline in real time and transmit the monitoring data to the control center via the mobile network; The control center is used to receive the monitoring data transmitted by the GNSS monitoring station and determine the deformation of the buried pipeline according to the monitoring data; The anti-deformation device is installed near the buried pipeline and is used to adjust its own shape according to the instructions of the control center to resist the influence of surface deformation on the buried pipeline; The control center includes a deformation prediction module, which uses a probability integral method to calculate the impact factor A of mining on the buried pipeline based on the monitoring data, and the impact factor A includes a sinking value W, a horizontal movement value U, a horizontal deformation value ε, an inclination value i, and a curvature K; the control center also compares the impact factor A with the allowable deformation value B of the buried pipeline to determine whether the anti-deformation device needs to be started. If the impact factor A is less than the allowable deformation value B, mining will not affect the buried pipeline, and continuous monitoring is sufficient without special treatment; If the impact factor A is greater than the allowable deformation value B, mining will have an impact on the buried pipeline.

2. The multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas according to claim 1 is characterized in that: The GNSS monitoring station includes a plurality of monitoring points distributed around the buried pipeline for obtaining the subsidence and horizontal movement deformation data of the ground surface; the number of the monitoring points is not less than 5 and is evenly distributed on both sides of the buried pipeline.

3. The multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas according to claim 1 is characterized in that: The control center is also used to calculate the mining impact factor A according to the monitoring data. The calculation formula of the mining impact factor A is as follows: A=f(W,U,ε,i,K), wherein W is the sinking value, U is the horizontal movement value, ε is the horizontal deformation value, i is the inclination value, and K is the curvature; the control center is also used to compare the mining influencing factor A with the allowable deformation value B of the buried pipeline to determine whether it is necessary to start the anti-deformation device.

4. The multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas according to claim 1 is characterized in that: The anti-deformation device includes an adjustable support structure, which automatically adjusts its shape according to the instructions of the control center to adapt to different degrees of deformation; the adjustable support structure includes a retractable support unit, and the retractable length of the support unit is adjusted according to the mining influencing factor A. The adjustment formula is as follows: L=k×(W+U+ε), wherein L is the retractable length of the support unit, k is the adjustment coefficient, W is the sinking value, U is the horizontal movement value, and ε is the horizontal deformation value.

5. The multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas according to claim 1 is characterized in that: It also includes a warning device, which sends out a warning signal when the monitored deformation value exceeds the anti-deformation capacity of the device; the warning device includes a sound alarm and a light alarm, which is used to send out a warning signal when the deformation value exceeds a set threshold.

6. The multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas according to claim 1 is characterized in that: The control center also includes a data storage module for storing monitoring data acquired by the GNSS monitoring station for subsequent analysis and evaluation; the data storage module is also used to store the calculation results of the mining influencing factor A and the adjustment history data of the anti-deformation device.

7. The multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas according to claim 6 is characterized in that: The adjustable support structure also includes an angle adjustment unit for adjusting the angle of the support structure according to the inclination value T of the ground surface. The angle adjustment formula is as follows: θ=arctan(T), where θ is the angle of the support structure and T is the inclination value of the ground surface.

8. The multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas according to claim 7 is characterized in that: The anti-deformation device further includes a deformation adjustment algorithm module, which automatically adjusts the shape of the support structure according to the mining influence factor A. The specific steps are as follows: (1) Calculate the deformation influence factor: A = f(W, U, ε, i, K); where W is the subsidence value, U is the horizontal movement value, ε is the horizontal deformation value, i is the inclination value, and K is the curvature; The movement deformation prediction of any point in the surface movement basin is calculated by taking the direction parallel to the downhill calculation boundary of the inclined main section of the goaf area as the horizontal coordinate, and taking the direction parallel to the inclined direction of the left calculation boundary of the main section of the goaf area as the vertical coordinate. The calculation formula for the movement and deformation of any point (x, y) on the corner is as follows: Surface subsidence formula: Surface tilt formula: Surface curvature formula: The formula for horizontal movement of the ground surface is: Surface horizontal movement formula: Where: D-mining coal seam area; ξ, η-integral variables; W max - Maximum ground subsidence value, mm; i max - Maximum surface inclination, mm / m; K max - Maximum curvature of the surface, 10 -3 / m;U max - Maximum horizontal displacement of the ground surface, mm; ε max - Maximum horizontal deformation value of the surface, mm / m; m- normal mining thickness of the coal seam, mm; q- subsidence coefficient; α- coal seam inclination, deg; b- horizontal movement coefficient; r- influence radius, m; (2) Determine the adjustment parameters: Adjustment of telescopic length: L = k×(W + U + ε), where L is the telescopic length of the support unit and k is the adjustment coefficient; Adjustment of angle: θ = arctan(T), where θ is the angle of the support structure; (3) Execute the adjustment: Telescopic adjustment: Adjust the length of each support unit according to the calculated telescopic length L; Angle adjustment: Adjust the angle of the support structure according to the calculated angle θ; Real-time feedback: Feed back the adjusted shape data to the control center, and the control center continues to adjust according to the real-time monitoring data to ensure the safety of the buried pipeline.

9. The multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas according to claim 1 is characterized in that: The anti-deformation device further includes a rotating unit, which is located below the support unit and is used to resist horizontal movement; the rotating unit includes a rotating shaft and a rotating support plate, and the rotating support plate is connected to the support unit through the rotating shaft, and the rotating support plate is rotated and adjusted according to the horizontal movement value. The adjustment formula is as follows: where θ is the rotation angle, U is the horizontal movement value, and L is the telescopic length of the support unit.

10. A monitoring method for a multi-source collaborative deformation monitoring system for underground pipelines in mining-affected areas based on any one of claims 1 to 9, characterized in that: It includes the following steps: (1) Monitoring and data transmission 1.1 Layout of monitoring points: Arrange multiple GNSS monitoring points around the buried pipeline, evenly distributed on both sides of the buried pipeline; these monitoring points are used to obtain the deformation data of the subsidence value W, horizontal movement value U, horizontal deformation value ε, inclination value i and curvature K of the surface; 1.2 Data transmission: The GNSS monitoring station transmits the monitoring data to the control center in real time through the mobile network; (2) Data processing and analysis 2.1 Receive data: The control center receives the monitoring data transmitted by the GNSS monitoring station; 2.2 Calculate the impact factor and compare the allowable deformation value: The deformation prediction module of the control center uses the probability integral method to calculate the impact factor A of mining on the buried pipeline. The formula is as follows: A = f(W, U, ε, i, K), where W is the subsidence value, U is the horizontal movement value, ε is the horizontal deformation value, i is the inclination value, K is the curvature; Comparison and decision: The control center compares the calculated influence factor A with the allowable deformation value B of the buried pipeline; if A < B, the mining will not affect the buried pipeline, and the system continues to monitor without special treatment; if A > B, the mining will affect the buried pipeline, and the anti-deformation device is started; (3) Adjustment of the anti-deformation device 3.1 Start the deformation adjustment algorithm module: When A > B, the control center starts the deformation adjustment algorithm module; 3.2 Determine the adjustment parameters: Adjustment of telescopic length: L = k×(W + U + ε), where L is the telescopic length of the support unit and k is the adjustment coefficient; 3.3 Adjustment of angle: θ = arctan(T) where θ is the angle of the support structure; Execute the adjustment: 3.4 Telescopic adjustment: Adjust the length of each support unit according to the calculated telescopic length L; 3.5 Angle adjustment: Adjust the angle of the support structure according to the calculated angle θ; 3.6 Real-time feedback: Feedback the adjusted morphological data to the control center, which will continue to adjust according to the real-time monitoring data to ensure the safety of the buried pipeline; (4) Adjustment of the rotation unit 4.1 Rotation unit start-up: The rotation unit in the anti-deformation device is located at the lower part of the support unit and is used to resist horizontal movement; 4.2 Perform rotation adjustment: According to the calculated rotation angle θ, adjust the angle of the rotating support plate to resist the influence of horizontal movement on the buried pipeline; (5) Warning and data storage 5.1 Warning device starts: When the monitored deformation value exceeds the anti-deformation capacity of the device, the warning device sends out a warning signal; 5.2 Data Storage: The data storage module of the control center is used to store the monitoring data obtained by the GNSS monitoring station, as well as the calculation results of the mining influencing factor A and the adjustment history data of the anti-deformation device; (6) Real-time feedback and dynamic adjustment 6.1 Real-time feedback: The adjusted morphological data is fed back to the control center in real time, and the control center continues to adjust according to the real-time monitoring data to ensure the safety of the buried pipeline; 6.2 Dynamic adjustment: Dynamically adjust the shape of the supporting structure according to real-time monitoring data to ensure that the buried pipeline remains stable at all times.

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