Monitoring method based on monitoring system for jacking pipe underneath passing existing railway

Abstract

According to the monitoring method based on the monitoring system for the jacking pipe underneath pass existing railway, the influence of jacking pipe underneath pass on the railway foundation is evaluated through roadbed settlement observation and road surface monitoring, so that a construction unit can adjust construction parameters and optimize and improve a construction method in time on site, and safety accidents endangering the railway are avoided. By improving monitoring instruments and equipment, integrating functions of monitoring data acquisition, remote equipment control, data transmission and the like, establishing an information management platform and forming various change curves and graphs through data analysis, a monitoring result is visualized; and early warning and alarming are carried out on standard exceeding results according to standards and specifications, so that monitoring result feedback is more timely, corresponding measures can be taken in time, and the aim of preventing and reducing disasters is achieved.

Description

Technical Field

[0001] The invention relates to the field of railway monitoring, and in particular to a monitoring method based on a pipe jacking-through-existing railway monitoring system. Background Art

[0002] Since pipeline construction may affect the railway foundation and then affect the structure of the track, when the deformation exceeds the safety value, it will endanger the safety of railway driving. Therefore, in order to ensure the safe operation of the railway, it is necessary to strengthen the monitoring of railway deformation during construction, predict and evaluate the impact on the railway, and promptly feedback a series of dynamic change information caused by construction to the construction unit, so that it can adjust the construction parameters on site in time, optimize and improve the construction methods, so as to avoid the occurrence of railway safety accidents.

[0003] Application Contents

[0004] The purpose of the present application is to provide a monitoring method based on a pipe jacking underpass under an existing railway monitoring system to solve the technical problems described in the background technology.

[0005] The technical solutions adopted in this application are as follows:

[0006] A monitoring method based on a pipe-jacking-under-existing-railway monitoring system, wherein the pipe-jacking-under-existing-railway monitoring system comprises: a total station, an automated monitoring industrial computer, video monitoring equipment, an automated data processing platform, and a power supply system.

[0007] The monitoring method based on the pipe jacking under the existing railway monitoring system comprises the following steps:

[0008] S100: Setting up roadbed settlement observation points: along the railway direction, roadbed settlement observation points are set up on the railway roadbed within 50m on both sides of each railway crossing. One observation point is set up at the crossing, and one observation point is set up every 5m, 10m, 15m and 25m within 50m on both sides, for a total of 9 observation points; roadbed settlement observation points are set up on the track surface, shoulder and slope toe in the direction perpendicular to the railway, for a total of 54 observation points.

[0009] S200: Deployment of monitoring network:

[0010] S210: The elevation system used in railway construction is adopted. When the on-site control points cannot meet the networking requirements or the networking is difficult, an independent elevation system is adopted.

[0011] S220: The referenced leveling base points for settlement observation are the leveling base points of the control measurement height network during the railway construction period; the vertical displacement observation is measured from the nearest leveling base point, and the referenced leveling base points are checked before measurement; the check is carried out by re-measurement, comparing the height difference between the adjacent leveling base points with the original height difference. When the difference between the detected height difference and the original height difference meets the requirement, the referenced leveling base points are checked. When the leveling base point to be measured is in a stable state, it can be considered that it is in a stable state. Otherwise, it should be further re-measured to find out the cause and eliminate the problem before conducting the measurement. When laying out an independent high-precision deformation monitoring benchmark network, set at least three deformation monitoring benchmark points. The location of the benchmark points should be selected away from the construction impact area, and the stability of the measuring station itself should be checked through the benchmark points. The full-circle observation method is used to observe the three benchmark points three times in a row. When the standard tolerance is met, the three-dimensional coordinates of the benchmark points are obtained. The benchmark points should be checked regularly and the corresponding re-measurement and verification should be carried out at any time.

[0012] S230: Place total station forced centering piles and automated monitoring devices at appropriate locations in the monitoring area, place four monitoring work base points at appropriate locations with line of sight to the total station, connect the four monitoring work base points with the benchmark points, and calculate the coordinates and elevations of the monitoring work base points.

[0013] S300: The first phase of settlement and deformation observation, three independent observations were carried out in succession, and the average value was taken as the initial value; during the construction period, daily monitoring data was collected according to the construction progress and monitoring level, and compared with the first phase data to obtain the daily change.

[0014] S400: The data collected by the total station is uploaded to the automated data processing platform, which can automatically process the data according to the preset program and upload it to the data management center for users to view and download.

[0015] Furthermore, the monitoring method based on the jacking pipe passing through the existing railway monitoring system also includes: settlement observation accuracy requirements: the mean error in elevation of the deformation observation point is ±2.0mm, and the mean error in the height difference between adjacent deformation observation points is ±1.0mm.

[0016] Furthermore, the monitoring method based on the existing railway monitoring system under the top pipe also includes: S220: The vertical displacement observation benchmark makes full use of the bedrock points, deep buried leveling points, ordinary leveling points, CPⅠ, CPⅡ points during the railway construction, and fully considers the distance and stability of the joint measurement line. If the on-site leveling point cannot meet the requirements, it shall be reburied or a stable monitoring mark shall be used. The deformation monitoring work base point shall be arranged on the rock or original soil layer 100 to 200 meters away from the work site. The leveling point can also be established using stable buildings and structures.

[0017] Furthermore, the monitoring method based on the jacking pipe passing through the existing railway monitoring system also includes: each roadbed settlement observation point is roughly located on a cross section, and the observation point can be set by implanting steel nails on the concrete structure, or by using chemical anchoring to set the monitoring point in a convenient position.

[0018] Furthermore, the monitoring method based on the pipe jacking underpass of the existing railway monitoring system also includes: S100: observing the contact network pillars on both sides of the crossing point, and setting a total of 58 deformation monitoring points.

[0019] Furthermore, the monitoring method based on the pipe jacking under the existing railway monitoring system also includes: S300: monitoring adopts the method of total station automated monitoring, uses the total station free station setting and rear intersection method to introduce and integrate the automated triangulation height measurement method, and verifies the station setting through the rear intersection of the working base point.

[0020] Furthermore, the monitoring method based on the jacking pipe underpass of the existing railway monitoring system also includes: the automated data processing platform also includes: automatically processing the data collected by the total station according to a preset program, and uploading it to the data management center for users to view and download; comparing the coordinates and elevation data of each monitored point processed with the data of the first period and the previous period, analyzing the changes of each monitored point, and processing the changes into a report form for users to view and download; the monitoring point displacement information report includes: monitoring point name, monitoring point type, data start and end time, lateral cumulative displacement, maximum lateral displacement, longitudinal cumulative displacement, maximum longitudinal displacement, vertical cumulative displacement, maximum vertical displacement, and a curve chart of monitoring changes.

[0021] Furthermore, the monitoring method based on the monitoring system of pipe jacking under the existing railway also includes: the automated data processing platform also includes: setting cumulative quantity warning and single mutation quantity warning; vertical displacement monitoring and horizontal displacement monitoring warning values ​​can be set separately; the monitoring data warning push mechanism is a customizable mode, when the data reaches a specific warning, the warning information is sent to the monitoring, supervision, construction, owner, and equipment management units via mobile phone text messages; the observation results are shared and analyzed in real time to guide construction; and a three-level warning mechanism is adopted.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are:

[0023] (1) High degree of automation. From data collection, data settlement, data release, to data early warning, no human intervention is required in any link.

[0024] (2) High monitoring accuracy. Using a high-precision measuring robot with an accuracy of ±0.5", the instrument automatically searches for observation points and automatically measures, reducing errors caused by manual centering.

[0025] (3) Real-time data collection. According to the needs of the project, data can be collected in real time, and the relevant parameters of the on-site industrial computer can be configured remotely without the need to go to the site for configuration.

[0026] (4) High safety. By using high-precision measuring machines, the instruments and observation points are arranged before monitoring. The monitoring personnel can complete the entire data collection and output by remote control indoors, reducing the overlap between monitoring personnel and construction personnel.

[0027] (5) Automatic alarm reminder. Set three levels of warning limits. When the automatically collected data exceeds the limit, a call will be made to the on-site person in charge immediately. The on-site person in charge will review the data and issue a warning according to the warning mechanism.

[0028] (6) Platform sharing. Each automated monitoring system can be operated by multiple people online at the same time. The user only needs to enter the account and password to realize real-time sharing of monitoring data.

[0029] (7) Real-time monitoring. The automated monitoring system is equipped with a video monitoring system, which can protect the monitoring equipment while also allowing the on-site construction progress to be viewed, so that monitoring and construction are always consistent. The monitoring frequency can be adjusted at any time and manual leveling measurements can be added in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 The present invention is a functional module diagram of an embodiment of a monitoring method based on a monitoring system for pipe jacking under an existing railway.

[0032] Figure 2 The present invention is a schematic diagram of equipment installation in one embodiment of a monitoring method based on a pipe jacking underpass of an existing railway monitoring system.

[0033] Figure 3 The present invention is a schematic diagram of the construction of a railway subgrade settlement observation control network and the monitoring point layout according to an embodiment of a monitoring method based on a pipe jacking underpass existing railway monitoring system.

[0034] Figure 4 The present invention is a schematic diagram of a monitoring route according to an embodiment of a monitoring method based on a monitoring system for pipe jacking under an existing railway.

[0035] Figure 5The present invention is a schematic diagram of an automated data processing platform interface for an embodiment of a monitoring method based on a pipe jacking underpass of an existing railway monitoring system.

[0036] Figure 6 The present invention is a schematic diagram of a monitoring point displacement information report of an automated data processing platform according to an embodiment of a monitoring method based on a monitoring system for pipe jacking under an existing railway. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0040] It should be noted that the terms "first", "second", etc. in the description and claims of the embodiments of this specification and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of this specification described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0041] The present invention is further explained below in conjunction with specific implementation modes.

[0042] As the instruction manual Figures 1 to 6 As shown:

[0043] In one embodiment, a monitoring method based on a pipe jacking underpass under an existing railway monitoring system is provided, wherein the pipe jacking underpass under an existing railway monitoring system includes: a total station, an automated monitoring industrial computer, video monitoring equipment, an automated data processing platform, and a power supply system.

[0044] Total station: performs angle measurement (including horizontal angle and vertical angle), distance measurement (including slope distance, horizontal distance and height difference); after setting up the total station at a known point, measures the three-dimensional coordinates of the unknown point according to the measuring station and orientation point; accurately places the point according to the given coordinate data (point layout); exchanges data with the automated monitoring industrial computer.

[0045] Automated monitoring industrial computer: The automated monitoring industrial computer mainly supplies power to the total station and controls the total station to collect data, and uploads the collected data to the automated data processing platform.

[0046] Video surveillance equipment: The video surveillance equipment uses 4G wireless transmission and is fixed on the solar power supply system combined pole. The power supply is directly connected to the intelligent digital display controller port. The "Hikvision Internet" APP is used for real-time viewing and recording of video surveillance, which can view the on-site situation in real time, detect mobile signals, and record videos and save them to the cloud.

[0047] Automated data processing platform: The automated data processing platform mainly performs adjustment processing on the collected data, and summarizes, analyzes, displays graphics, and issues early warnings on the processed data.

[0048] Power supply system: The power supply adopts external solar power supply system.

[0049] The monitoring method based on the pipe jacking under the existing railway monitoring system includes the following steps:

[0050] S100: Setting up roadbed settlement observation points: along the railway direction, roadbed settlement observation points are set up on the railway roadbed within 50m on both sides of each railway crossing. One observation point is set up at the crossing, and one observation point is set up every 5m, 10m, 15m and 25m within 50m on both sides, for a total of 9 observation points; roadbed settlement observation points are set up on the track surface, shoulder and slope foot in the direction perpendicular to the railway; the contact network pillars on both sides of the crossing are observed, and a total of 58 deformation monitoring points are set up.

[0051] Specifically, each roadbed settlement observation point is roughly located on a cross section. The observation point can be set by implanting steel nails on the concrete structure, or by using chemical anchoring to set the monitoring point in a convenient location.

[0052] S200: Laying out monitoring network: using independent elevation system.

[0053] S210: Deploy an independent high-precision deformation monitoring benchmark network and set up at least three deformation monitoring benchmark points. The location of the benchmark points should be selected away from the construction impact area, and the stability of the measuring station itself should be checked through the benchmark points. Use the full-circle observation method to observe the three benchmark points three times in a row, and obtain the three-dimensional coordinates of the benchmark points when the specification tolerance is met. Check the benchmark points regularly and conduct corresponding re-measurement and verification at any time.

[0054] S220: Place total station forced centering piles and automated monitoring devices at appropriate locations in the monitoring area, place four monitoring work base points at appropriate locations with line of sight to the total station, connect the four monitoring work base points with the benchmark points, and calculate the coordinates and elevations of the monitoring work base points.

[0055] Specifically, the deformation monitoring work base point should be set up on the rock or original soil layer 100 to 200 meters away from the work site. The leveling points can also be established using stable buildings and structures.

[0056] S300: The first phase of settlement and deformation observation, three independent observations were carried out in succession, and the average value was taken as the initial value; during the construction period, daily monitoring data was collected according to the construction progress and monitoring level, and compared with the first phase data to obtain the daily change.

[0057] Specifically, the settlement observation accuracy requirements are: the mean error in elevation of the deformation observation point is ±2.0mm, and the mean error in the height difference between adjacent deformation observation points is ±1.0mm.

[0058] Specifically, the monitoring adopts the method of total station automated monitoring, uses the total station free station setting and rear intersection method to introduce and integrate the automated trigonometric height measurement method, and verifies the station setting through rear intersection of the working base point.

[0059] S400: The data collected by the total station is uploaded to the automated data processing platform, which can automatically process the data according to the preset program and upload it to the data management center for users to view and download.

[0060] Specifically, the automated data processing platform also includes: comparing the coordinates and elevation data of each monitoring point with the data of the first and previous periods, analyzing the changes of each monitoring point, and processing the changes into a report format for users to view and download; the monitoring point displacement information report includes: monitoring point name, monitoring point type, data start and end time, lateral cumulative displacement, maximum lateral displacement, longitudinal cumulative displacement, maximum longitudinal displacement, vertical cumulative displacement, maximum vertical displacement, and a curve chart of monitoring changes.

[0061] Specifically, the automated data processing platform also includes: setting cumulative quantity warning and single mutation quantity warning; vertical displacement monitoring and horizontal displacement monitoring warning values ​​can be set separately; the monitoring data warning push mechanism is a customizable mode, when the data reaches a specific warning, the warning information is sent to the monitoring, supervision, construction, owner, and equipment management units via mobile phone text messages; the observation results are shared and analyzed in real time to guide construction; a three-level warning mechanism is adopted, and the control standards and warning processing refer to the following table:

[0062]

[0063]

[0064] In this embodiment, the impact of pipe jacking on the railway foundation is evaluated through roadbed settlement observation, so that the construction unit can adjust the construction parameters on site in a timely manner, optimize and improve the construction methods, so as to avoid the occurrence of accidents that endanger railway safety.

[0065] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0066] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0067] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0068] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0069] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0070] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable memory, and the memory may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0071] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A monitoring method based on a pipe jacking under an existing railway monitoring system, characterized in that: The pipe jacking under the existing railway monitoring system includes: a total station, an automated monitoring industrial computer, video monitoring equipment, an automated data processing platform, and a power supply system; The monitoring method based on the pipe jacking under the existing railway monitoring system comprises the following steps: S100: Setting up roadbed settlement observation points: along the railway direction, roadbed settlement observation points are set up on the railway roadbed within 50m on both sides of each railway crossing. One observation point is set up at the crossing, and one observation point is set up every 5m, 10m, 15m, and 25m within 50m on both sides, for a total of 9 observation points; in the direction perpendicular to the railway, roadbed settlement observation points are set up on the track surface, shoulder, and slope foot, for a total of 54 observation points; S200: Deployment of monitoring network: S210: Use the elevation system used in railway construction. When the on-site control points cannot meet the networking requirements or the networking is difficult, use an independent elevation system; S220: The referenced leveling base points for settlement observation are the leveling base points of the control measurement height network during the railway construction period; the vertical displacement observation is measured from the nearest leveling base point, and the referenced leveling base points are checked before measurement; the check is carried out by re-measurement, comparing the height difference between the adjacent leveling base points with the original height difference. When the difference between the detected height difference and the original height difference meets the requirement, the referenced leveling base points are checked. When the proposed leveling base point is in a stable state, it can be considered that the proposed leveling base point is in a stable state. Otherwise, further re-measurement should be carried out to find out the cause and eliminate the problem before conducting the leveling. When laying out an independent high-precision deformation monitoring base network, at least three deformation monitoring base points should be set. The location of the base points should be selected away from the construction impact area, and the stability of the measuring station itself should be checked through the base points. The full-circle observation method should be used to observe the three base points three times in a row, and the three-dimensional coordinates of the base points should be obtained when the standard tolerance is met. The base points should be calibrated regularly and the corresponding re-measurement and calibration should be carried out at any time. S230: deploying total station forced centering piles and automated monitoring devices at appropriate locations in the monitoring area, deploying four monitoring work base points at appropriate locations with line of sight to the total station, and jointly measuring the four monitoring work base points with the reference points to calculate the coordinates and elevations of the monitoring work base points; S300: The first phase of settlement and deformation observation, three independent observations were carried out continuously, and the average value was taken as the initial value; during the construction period, daily monitoring data was collected according to the construction progress and monitoring level, and compared with the first phase data to obtain the daily change; S400: The data collected by the total station is uploaded to the automated data processing platform, which can automatically process the data according to the preset program and upload it to the data management center for users to view and download.

2. The monitoring method based on the pipe jacking under the existing railway monitoring system according to claim 1 is characterized in that: Also includes: Accuracy requirements for settlement observations: mean error in elevation of deformation observation points is ±2.0mm, and mean error in elevation difference between adjacent deformation observation points is ±1.0mm.

3. The monitoring method based on the pipe jacking under the existing railway monitoring system as claimed in claim 2 is characterized in that: Also includes: S220: The vertical displacement observation benchmarks make full use of the bedrock points, deep-buried leveling points, common leveling points, CPⅠ and CPⅡ points during the railway construction period, and fully consider the distance and stability of the joint measurement line; If the on-site leveling points cannot meet the requirements, they should be reburied or stable monitoring marks should be used; the deformation monitoring work base points should be laid out on rocks or original soil layers 100 to 200 meters away from the work site, and stable buildings and structures can also be used to establish leveling points.

4. The monitoring method based on the pipe jacking under the existing railway monitoring system as claimed in claim 3 is characterized in that: Also includes: Each roadbed settlement observation point is roughly located on a cross section. The observation point can be set by implanting steel nails on the concrete structure, or by using chemical anchoring to set the monitoring point in a convenient location.

5. The monitoring method based on the pipe jacking under the existing railway monitoring system according to claim 4 is characterized in that: Also includes: S100: Observe the contact network pillars on both sides of the crossing point, and set up a total of 58 deformation monitoring points.

6. The monitoring method based on the pipe jacking under the existing railway monitoring system according to claim 5 is characterized in that: Also includes: S3 00: The monitoring adopts the method of total station automated monitoring. The automated trigonometric height measurement method is introduced and integrated using the total station free station setting and resection method. The station setting is verified through resection of the working base point.

7. The monitoring method based on the pipe jacking under the existing railway monitoring system according to claim 6 is characterized in that: Also includes: The automated data processing platform also includes: automatically processing the data collected by the total station according to a preset program and uploading it to the data management center for users to view and download; The coordinates and elevation data of each monitoring point are processed and compared with the data of the first and previous periods to analyze the changes in each monitoring point, and the changes are processed into a report form for users to view and download; the monitoring point displacement information report includes: monitoring point name, monitoring point type, data start and end time, lateral cumulative displacement, maximum lateral displacement, longitudinal cumulative displacement, maximum longitudinal displacement, vertical cumulative displacement, maximum vertical displacement, and a curve chart of monitoring changes.

8. The monitoring method based on the monitoring system of pipe jacking under existing railway according to claim 7, characterized in that: Also includes: The automated data processing platform also includes: setting cumulative quantity warnings and single mutation quantity warnings; vertical displacement monitoring and horizontal displacement monitoring warning values ​​can be set separately; the monitoring data warning push mechanism is a customizable mode, and when the data reaches a specific warning level, the warning information is sent via mobile phone text messages to the monitoring, supervision, construction, owner, and equipment management units; observation results are shared and analyzed in real time to guide construction; and a three-level warning mechanism is adopted.

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