Operation line monitoring method and system in cross-operation railway construction period

Abstract

The invention relates to the technical field of railway construction monitoring, in particular to an operation line monitoring method and system during cross-operation railway construction. The monitoring method comprises the steps that a plurality of monitoring points are arranged on the two sides of an operation line, and based on current three-dimensional coordinate data of the monitoring points and standard three-dimensional coordinate data of the monitoring points, the vertical variable quantity, the transverse variable quantity and the longitudinal variable quantity of each monitoring point are obtained; based on the current three-dimensional coordinate data and the historical three-dimensional coordinate data of the multiple monitoring points, the vertical offset change rate, the transverse offset change rate and the longitudinal offset change rate of each monitoring point are obtained; based on the vertical offset change rate, the transverse offset change rate and the longitudinal offset change rate, carrying out abnormity judgment on the current three-dimensional coordinate data; and carrying out settlement and horizontal displacement monitoring on the operation line based on the vertical variation, the transverse variation, the longitudinal variation and a preset threshold value. The safety of the railway line in the construction period can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway construction monitoring, and in particular to a method and system for monitoring an operating line during construction of a cross-operation railway. Background Art

[0002] With the rapid development of railway transportation, the density and complexity of railway networks are constantly increasing. Cross-operation railway construction has become an important part of railway maintenance and upgrading. Cross-operation railway construction refers to construction carried out on existing railway lines while ensuring the normal operation of the railway. This construction method not only reduces interference with railway transportation, but also improves construction efficiency and reduces construction costs. However, cross-operation railway construction also brings many challenges, especially in ensuring the safety of construction and railway operations. Traditional monitoring methods often rely on manual periodic measurements, which have problems such as low data collection frequency, poor real-time performance, and delayed warnings, making it difficult to detect safety hazards in a timely manner. In addition, the existing technology has a single monitoring point layout method, insufficient benchmark stability, and simple data analysis models, resulting in limited monitoring accuracy and reliability. Therefore, there is an urgent need for a monitoring system and method that integrates automated data collection, high-precision three-dimensional coordinate analysis, and real-time warnings to enhance the safety assurance capabilities of railway lines during construction. Summary of the Invention

[0003] The present invention provides a method and system for monitoring an operating line during construction of a cross-operating railway, which can overcome certain defects of the prior art.

[0004] According to the present invention, a method for monitoring an operating line during construction of a cross-operating railway includes: setting a plurality of monitoring points on both sides of the operating line, wherein the extension area of ​​the plurality of monitoring points forms a monitoring section, wherein the monitoring section is continuously constructed with a plurality of monitoring sections, wherein the plurality of monitoring points are respectively set at the plurality of monitoring sections, wherein the monitoring section is a plane perpendicular to the extension direction of the operating line for deploying the monitoring points; Setting up a monitoring base station outside the monitoring section; Collecting the current three-dimensional coordinate data of the plurality of monitoring points and the standard three-dimensional coordinate data of the plurality of monitoring points from the monitoring base station; Based on the current three-dimensional coordinate data of the plurality of monitoring points and the standard three-dimensional coordinate data of the plurality of monitoring points, obtaining a vertical change amount, a lateral change amount, and a longitudinal change amount at each monitoring point; Based on the current three-dimensional coordinate data and the historical three-dimensional coordinate data of the plurality of monitoring points, obtaining a vertical offset change rate, a lateral offset change rate, and a longitudinal offset change rate at each monitoring point; Based on the vertical offset change rate, the lateral offset change rate and the longitudinal offset change rate, the current three-dimensional coordinate data is judged to be abnormal; Based on the vertical change, lateral change and longitudinal change, and the preset threshold value, the settlement and horizontal displacement of the operating line are monitored.

[0005] Through the present invention, multiple monitoring points are set up to comprehensively and accurately reflect the settlement and horizontal deformation of the construction area, providing reliable data support for construction safety and quality; the real-time monitoring data of the monitoring points are compared with the monitoring point data observed before construction to determine the deformation of the construction area; a three-dimensional monitoring network is constructed by continuously monitoring sections to achieve dynamic coverage monitoring of the displacement status of the entire section of the operating line affected by construction; a fully automatic total station with a signal transceiver is set at the monitoring base station to achieve remote automated monitoring and ensure the safety of data collection during train operation; through multi-dimensional analysis of three-dimensional coordinate data (vertical / lateral / longitudinal), the line deformation status can be comprehensively evaluated; the vertical offset change rate, lateral offset change rate and longitudinal offset change rate comparison mechanism at the monitoring point can effectively identify sudden abnormalities and improve the timeliness of early warning; the monitoring results are determined by the set threshold to avoid subjective judgment errors.

[0006] Preferably, the vertical variation, lateral variation and longitudinal variation at the monitoring section are obtained based on the current three-dimensional coordinate data of the multiple monitoring points and the standard three-dimensional coordinate data of the multiple monitoring points, including: Obtain the standard three-dimensional coordinate data of the four outermost monitoring points among the multiple monitoring points, wherein the standard three-dimensional coordinate data of the four outermost monitoring points are DM1 ( , , )、DM2( , , ), monitoring point DM1 and monitoring point DM2 are located in the same monitoring section, and monitoring point DM3 and monitoring point DM4 are located in the same monitoring section; Construct a horizontal reference line DM2-DM4 based on monitoring points DM2 and DM4; Constructing a longitudinal reference line DM1-DM2 based on monitoring points DM1 and DM2; The current three-dimensional coordinate data is ( , , ), the standard three-dimensional coordinate data is ( , , ), where the current three-dimensional coordinate data ( , , ) is obtained by real-time observation, and the standard three-dimensional coordinate data is ( , , ) is obtained from observation before construction; The lateral change at each monitoring point is the current plane coordinate of the corresponding monitoring point ( , ) to the horizontal reference line DM2-DM4 and the standard plane coordinates of the monitoring point ( , ) to the horizontal reference line DM2-DM4; The longitudinal variation at each monitoring point is the sum of the distance from the current plane coordinate of the corresponding monitoring point to the longitudinal reference line DM1-DM2 and the standard plane coordinate of the monitoring point ( , ) to the longitudinal reference line DM1-DM2; The longitudinal change at each monitoring point is the current vertical coordinate of the corresponding monitoring point Standard vertical coordinates of monitoring points difference.

[0007] Through the present invention, a dual reference line system is established, and the horizontal DM2-DM4 and the longitudinal DM1-DM2 form a stable reference coordinate system to improve the monitoring accuracy; the horizontal and longitudinal displacement components are separated to facilitate the targeted analysis of structural deformation in different directions; the standard coordinates before construction are used as the benchmark to eliminate the influence of initial construction errors, and at the same time, anti-reference offset can be achieved. Even if the monitoring base station is slightly displaced due to geological reasons, the difference calculation can still effectively reflect the relative deformation of the track; the standardized equation format facilitates automatic calculation by computer programs, and at the same time, formula standardization realizes parallel calculation processing of batch monitoring points.

[0008] Preferably, the longitudinal reference line DM1-DM2 is expressed as: ; The expression of the horizontal reference line DM2-DM4 is: .

[0009] Through the present invention, the reference line is expressed parameterized by the straight line equation to ensure the accuracy of the mathematical model. At the same time, each reference line only depends on the coordinates of two reference points to ensure the uniformity of the monitoring benchmark along the entire line.

[0010] As a preference, the current plane coordinates of the monitoring point ( , ) to the straight line DM1-DM2 is the first horizontal parameter ,in, ; Current plane coordinates of the monitoring point ( , ) to the straight line DM2-DM4 is the second level parameter ,in, .

[0011] Through the present invention, the plane data of the monitoring point is decomposed into two directions, and the two directions can be monitored and evaluated independently. Abnormal, while the offset occurs, but Normal, no deviation occurs, and the longitudinal construction can be determined as the risk source, such as jacking operation.

[0012] Preferably, based on the current three-dimensional coordinate data and historical three-dimensional coordinate data of the plurality of monitoring points, the vertical offset change rate, the lateral offset change rate and the longitudinal offset change rate at each monitoring point are obtained, including Establish a vertical displacement analysis coordinate system with the time axis t is the X coordinate, vertical coordinate is the Y coordinate, generating all monitoring points Line chart, where the vertical offset change rate is ; Establish a horizontal displacement analysis coordinate system and extract the horizontal parameters of all monitoring points in the same monitoring section. and , draw with synchronized time axis Line chart and Line graph, where the lateral offset change rate of each monitoring point is The longitudinal offset change rate is ; Δ t is the data collection period, is the first level parameter change of the monitoring point, is the second level parameter change of the monitoring point, For monitoring points Change.

[0013] Through the present invention, by generating Line chart, Line chart and The line graph can realize data visualization and can intuitively show the vertical, horizontal and longitudinal displacement of each monitoring point at different time points, making it easier to analyze displacement trends and change patterns.

[0014] As a preference, based on the vertical offset change rate, the lateral offset change rate and the longitudinal offset change rate, the current three-dimensional coordinate data is judged to be abnormal, including: judging the horizontal abnormality based on the lateral offset change rate and the longitudinal offset change rate; when the abnormality is satisfied, or When the vertical deviation is greater than 0.05, it is determined as a horizontal abnormal deviation; vertical abnormality is determined based on the vertical deviation change rate. When , it is determined to be abnormal vertical deviation, where σ 、 η 、 is the preset threshold, and is the first level parameter variation at different monitoring points in the same monitoring section, and It is the variation of the second level parameters at different monitoring points in the same monitoring section; when there is an abnormal deviation, the three-dimensional coordinates of the point are manually reviewed.

[0015] Through the present invention, by setting the threshold values ​​σ, η, and Ψ of the vertical offset change rate, the lateral offset change rate, and the longitudinal offset change rate, the standards for abnormality judgment can be unified, which is convenient for comparison of different monitoring points. When the change rate exceeds the threshold and is determined to be an abnormal deviation, a manual review link is introduced to effectively avoid misjudgment and ensure the accuracy of the data.

[0016] Preferably, based on the vertical change, the lateral change and the longitudinal change, and a preset threshold value, the settlement and horizontal displacement of the operating line are monitored, including constructing a displacement calculation model: , in, is the current longitudinal change, is the cumulative longitudinal change, is the horizontal change in the current period, Cumulative lateral change, is the vertical change in the current period, Cumulative vertical change, 、 and is the standard data of the first observation period, 、 and Standard data for current observation; set up early warning mechanism, when 、 、 、 、 and When any of the above exceeds the preset threshold, the warning action is executed.

[0017] Through the present invention, by simultaneously monitoring the longitudinal, lateral and vertical changes, the settlement and displacement of the operating line can be fully understood and comprehensive monitoring can be achieved; by calculating the cumulative changes, it can be compared with the initial observation data and historical data to better evaluate the long-term stability of the operating line; when any change exceeds the preset threshold, an early warning action is immediately executed, which can timely discover potential problems and avoid accidents.

[0018] Preferably, the monitoring point adopts an L-shaped prism bracket, which is fixed to the center of the upper surface of the sleeper by expansion bolts; a reflective prism is installed at the end of the prism bracket, the height of the prism is lower than the driving limit, and the surface of the prism is provided with a high-reflectivity film.

[0019] Through the present invention, the expansion bolt fixes the bracket to the center position of the upper surface of the sleeper, ensuring the firmness and long-term stability of the monitoring point and reducing the displacement caused by vibration or external force; the height of the reflective prism is lower than the driving limit, ensuring driving safety and avoiding the interference of the reflective prism on the train operation; the surface of the reflective prism is provided with a high-reflectivity film, which improves the reflective performance of the reflective prism, enables the measuring instrument to capture the reflected signal of the prism more clearly, and improves the reliability of the measurement. The high-reflectivity film also has a warning function to prevent accidental touch.

[0020] Preferably, the monitoring base station adopts a mandatory observation pier, wherein the construction of the mandatory observation pier includes the following steps: Step A: vertically excavating a foundation pit with a depth of 1-2 meters; Step B: Place the PVC pipe with the positioning base vertically in the foundation pit; Step C: Pour C30 concrete into the PVC pipe and foundation pit; Step D: Install an observation plate with a level calibration function on the top of the PVC pipe before the concrete begins to set; Step E: After the concrete has finally set and hardened, a mandatory observation pier is formed.

[0021] Through the present invention, the forced observation pier ensures the firmness and long-term stability of the observation base station through deep excavation and concrete pouring, and can resist the influence of various environmental factors; the forced observation pier is simple to construct and easy to operate, reducing the construction difficulty and time; the observation disk has a horizontal calibration function, which is convenient for regular inspection and calibration to ensure the accuracy of the observation data.

[0022] A system for monitoring an operating line during construction of a cross-operating railway, comprising: An observation subsystem comprising a plurality of monitoring points arranged in a monitoring section of an operating line, which is a continuous section of an operating railway line where displacement monitoring is required. The plurality of monitoring points are arranged at intervals along the extension direction of the monitoring section and uniformly cover the entire monitoring section. The benchmark subsystem includes a monitoring base station and benchmark points, which are located in a stable geological area more than 50 meters outside the boundary of the monitoring section of the operating line; The acquisition subsystem includes a total station located at the monitoring base station and a data upload device connected to the total station. The total station is used to collect the three-dimensional coordinate data of the monitoring points, and the data upload device uploads the collected data to the cloud in real time; The control center includes a data transceiver control terminal configured to remotely control the total station to collect data and receive and process monitoring data from the cloud; The early warning subsystem includes an automatic early warning software module, which is used to analyze data mutations and over-limit situations in real time and trigger early warnings.

[0023] Through the present invention, the system can realize comprehensive, real-time and accurate monitoring of the operating line during the construction period of the cross-operating railway, timely discover and warn potential safety hazards, and ensure the safe and stable operation of the operating railway line. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the construction of a cross-operational railway; Figure 2 Schematic diagram of monitoring points; Figure 3 This is a schematic diagram of the mandatory observation pier; Figure 4 This is a schematic diagram of the monitoring base station and benchmark points. DETAILED DESCRIPTION

[0025] In order to further understand the content of the present invention, the present invention is described in detail with reference to the embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention. Example 1

[0026] According to this embodiment, a method for monitoring an operating line during construction of a cross-operating railway includes: setting a plurality of monitoring points 2 on both sides of an operating line 1, wherein the extension area of ​​the plurality of monitoring points 2 forms a monitoring section, wherein the monitoring section is continuously constructed with a plurality of monitoring sections 3, wherein the plurality of monitoring points 2 are respectively set at the plurality of monitoring sections 3, wherein the monitoring sections 3 are planes perpendicular to the extension direction of the operating line 1 for deploying the monitoring points 2; A monitoring base station 4 is provided outside the monitoring section; Collecting the current three-dimensional coordinate data of the plurality of monitoring points 2 and the standard three-dimensional coordinate data of the plurality of monitoring points 2 from the monitoring base station 4; Based on the current three-dimensional coordinate data of the plurality of monitoring points 2 and the standard three-dimensional coordinate data of the plurality of monitoring points 2, obtaining the vertical change amount, the lateral change amount and the longitudinal change amount at each monitoring point 2; Based on the current three-dimensional coordinate data and the historical three-dimensional coordinate data of the plurality of monitoring points 2, obtaining a vertical offset change rate, a lateral offset change rate, and a longitudinal offset change rate at each monitoring point 2; Based on the vertical offset change rate, the lateral offset change rate and the longitudinal offset change rate, the current three-dimensional coordinate data is judged to be abnormal; Based on the vertical change, lateral change and longitudinal change, and the preset threshold value, the settlement and horizontal displacement of the operating line 1 are monitored.

[0027] Through this embodiment, multiple monitoring points 2 are set up to comprehensively and accurately reflect the settlement and horizontal deformation of the construction area, providing reliable data support for construction safety and quality; the real-time monitoring data of the monitoring point 2 is compared with the data of the monitoring point 2 observed before construction to determine the deformation of the construction area; a three-dimensional monitoring network is constructed by continuously monitoring the sections 3 to achieve dynamic coverage monitoring of the displacement status of the entire section of the operating line 1 affected by the construction; a fully automatic total station with a signal transceiver is set on the monitoring base station 4 to achieve remote automated monitoring and ensure the safety of data collection during train operation; through multi-dimensional analysis of three-dimensional coordinate data (vertical / lateral / longitudinal), the line deformation status can be comprehensively evaluated; the vertical offset change rate, lateral offset change rate and longitudinal offset change rate comparison mechanism at the monitoring point can effectively identify sudden abnormalities and improve the timeliness of early warning; the monitoring results are determined by the set threshold to avoid subjective judgment errors.

[0028] In this embodiment, the vertical change amount, the lateral change amount and the longitudinal change amount at the monitoring section are obtained based on the current three-dimensional coordinate data of the multiple monitoring points 2 and the standard three-dimensional coordinate data of the multiple monitoring points 2, including: Obtain the standard three-dimensional coordinate data of the four outermost monitoring points 2 among the plurality of monitoring points 2, wherein the standard three-dimensional coordinate data of the four outermost monitoring points 2 are DM1 ( , , )、DM2( , , ), monitoring point DM1 and monitoring point DM2 are located in the same monitoring section 3, and monitoring point DM3 and monitoring point DM4 are located in the same monitoring section 3; Construct a horizontal reference line DM2-DM4 based on monitoring points DM2 and DM4; Constructing a longitudinal reference line DM1-DM2 based on monitoring points DM1 and DM2; The current three-dimensional coordinate data is ( , , ), the standard three-dimensional coordinate data is ( , , ), where the current three-dimensional coordinate data ( , , ) is obtained by real-time observation, and the standard three-dimensional coordinate data is ( , , ) is obtained from observation before construction; The lateral change at each monitoring point 2 is the current plane coordinate of the corresponding monitoring point 2 ( , ) to the horizontal reference line DM2-DM4 and the standard plane coordinates of monitoring point 2 ( , ) to the horizontal reference line DM2-DM4; The longitudinal variation of each monitoring point 2 is the distance between the current plane coordinate of the corresponding monitoring point 2 and the longitudinal reference line DM1-DM2 and the standard plane coordinate of the monitoring point 2 ( , ) to the longitudinal reference line DM1-DM2; The longitudinal change at each monitoring point 2 is the current vertical coordinate of the corresponding monitoring point 2 Standard vertical coordinates of monitoring point 2 difference.

[0029] Through this embodiment, a dual reference line system is established, and the horizontal DM2-DM4 and the longitudinal DM1-DM2 form a stable reference coordinate system to improve the monitoring accuracy; the horizontal and longitudinal displacement components are separated to facilitate the targeted analysis of structural deformation in different directions; the standard coordinates before construction are used as the benchmark to eliminate the influence of initial construction errors, and at the same time, anti-reference offset can be achieved. Even if the monitoring base station is slightly displaced due to geological reasons, the difference calculation can still effectively reflect the relative deformation of the track; the standardized equation format facilitates automatic calculation by computer programs, and the standardized formula realizes parallel calculation and processing of batch monitoring points.

[0030] In this embodiment, the expression of the longitudinal reference line DM1-DM2 is: ; The expression of the horizontal reference line DM2-DM4 is: .

[0031] Through this embodiment, the reference line is expressed parameterized by a straight line equation to ensure the accuracy of the mathematical model. At the same time, each reference line only depends on the coordinates of two reference points to ensure the uniformity of the monitoring benchmark along the entire line.

[0032] In this embodiment, the current plane coordinates of monitoring point 2 ( , ) to the straight line DM1-DM2 is the first horizontal parameter ,in , Current plane coordinates of monitoring point 2 ( , ) to the straight line DM2-DM4 is the second level parameter ,in, .

[0033] Through this embodiment, the plane data of monitoring point 2 is decomposed into two directions, and the two directions can be monitored and evaluated independently. Abnormal, while the offset occurs, but Normal, no deviation occurs, and the longitudinal construction can be determined as the risk source, such as jacking operation.

[0034] In this embodiment, based on the current three-dimensional coordinate data and historical three-dimensional coordinate data of the multiple monitoring points 2, the vertical offset change rate, the lateral offset change rate and the longitudinal offset change rate at each monitoring point 2 are obtained, including Establish a vertical displacement analysis coordinate system with the time axis t is the X coordinate, vertical coordinate As Y coordinate, generate all monitoring points 2 Line chart, where the vertical offset change rate is ; Establish a horizontal displacement analysis coordinate system and extract the horizontal parameters of all monitoring points 2 in the same monitoring section 3. and , draw with synchronized time axis Line chart and Line graph, where the lateral offset change rate of each monitoring point 2 is The longitudinal offset change rate is ; Δ t is the data collection period, is the first level parameter change of monitoring point 2, is the second level parameter change of monitoring point 2, For monitoring point 2 Change.

[0035] Through this embodiment, by generating Line chart, Line chart and The line graph can realize data visualization and can intuitively show the vertical, horizontal and longitudinal displacement of each monitoring point 2 at different time points, which is convenient for analyzing displacement trends and change patterns.

[0036] In this embodiment, based on the vertical offset change rate, the lateral offset change rate and the longitudinal offset change rate, the current three-dimensional coordinate data is judged to be abnormal, including: judging the horizontal abnormality based on the lateral offset change rate and the longitudinal offset change rate. or When , it is determined to be a horizontal abnormal deviation; vertical abnormality is determined based on the vertical deviation change rate. When , it is determined to be abnormal vertical deviation, where σ 、 η 、 is the preset threshold, and is the first level parameter variation of different monitoring points 2 in the same monitoring section, and It is the variation of the second level parameter of different monitoring points 2 in the same monitoring section; when there is an abnormal deviation, the three-dimensional coordinates of the point are manually reviewed.

[0037] Through this embodiment, by setting the threshold values ​​σ, η, and Ψ of the vertical offset change rate, the lateral offset change rate, and the longitudinal offset change rate, the standard for abnormality determination can be unified, which facilitates comparison of different monitoring points 2; when the change rate exceeds the threshold and is determined to be an abnormal deviation, a manual review link is introduced to effectively avoid misjudgment and ensure the accuracy of the data.

[0038] In this embodiment, based on the vertical change, the lateral change, the longitudinal change, and the preset threshold, settlement and horizontal displacement monitoring of the operating line 1 is performed, including constructing a displacement calculation model: , in, is the current longitudinal change, is the cumulative longitudinal change, is the horizontal change in the current period, Cumulative lateral change, is the vertical change in the current period, Cumulative vertical change, 、 and is the standard data of the first observation period, 、 and Standard data for current observation; set up early warning mechanism, when 、 、 、 、 and When any of the above exceeds the preset threshold, the warning action is executed.

[0039] Through this embodiment, the longitudinal, lateral and vertical changes are monitored simultaneously, so that the settlement and displacement of the operating line 1 can be fully understood and comprehensive monitoring can be achieved; by calculating the cumulative changes, it can be compared with the initial observation data and historical data to better evaluate the long-term stability of the operating line 1; when any change exceeds the preset threshold, an early warning action is immediately executed, which can timely discover potential problems and avoid accidents.

[0040] In this embodiment, the monitoring point 2 uses an L-shaped prism bracket 5, which is fixed to the center of the upper surface of the sleeper by expansion bolts; a reflective prism 6 is installed at the end of the prism bracket 5, the height of the reflective prism 6 is lower than the driving limit, and the surface of the reflective prism 6 is provided with a high-reflectivity film.

[0041] Through this embodiment, the expansion bolts fix the prism bracket 5 to the center position of the upper surface of the sleeper, ensuring the firmness and long-term stability of the monitoring point 2 and reducing the displacement caused by vibration or external force; the height of the reflective prism 6 is lower than the driving limit, ensuring driving safety and avoiding the interference of the reflective prism 6 on the train operation; the surface of the reflective prism 6 is provided with a high-reflectivity film, which improves the reflective performance of the reflective prism 6, so that the measuring instrument can capture the reflected signal of the prism more clearly, thereby improving the reliability of the measurement. The high-reflectivity film also has a warning function to prevent accidental touch.

[0042] Preferably, the monitoring base station 4 adopts a mandatory observation pier 7, wherein the construction of the mandatory observation pier 7 includes the following steps: Step A: vertically excavate a foundation pit with a depth of 1-2 meters; Step B: Place the PVC pipe 9 vertically in the foundation pit; Step C: pouring C30 concrete into the PVC pipe 9 and the foundation pit; Step D: Before the concrete begins to set, install an observation plate 8 with a level calibration function on the top of the PVC pipe 9; Step E: After the concrete has finally set and hardened, a mandatory observation pier 7 is formed.

[0043] Through this embodiment, the forced observation pier 7 ensures the firmness and long-term stability of the monitoring base station 4 through deep excavation and concrete pouring, and can resist the influence of various environmental factors; the forced observation pier 7 is simple to construct and easy to operate, reducing the construction difficulty and time; the observation disk 8 has a horizontal calibration function, which is convenient for regular inspection and calibration to ensure the accuracy of the observation data. Example 2

[0044] Based on the method for monitoring an operating line during construction of a cross-operating railway provided in Example 1, another embodiment of the present disclosure also provides an operating line monitoring system during construction of a cross-operating railway, which can obtain various deformation parameters of the operating line 1 in the construction impact area based on the monitoring method in Example 1, and perform analysis and early warning based on the obtained deformation parameters.

[0045] In fact, the method provided in Example 1 is not only applicable to the real-time deformation parameter measurement during the construction process, but can also be extended to the dynamic monitoring of the entire construction process as described in this embodiment, which includes: An observation subsystem comprising a plurality of monitoring points 2, each of which is located in a monitoring section of an operating line 1. The monitoring section is a continuous railway section of an operating railway line where displacement monitoring is required. The plurality of monitoring points 2 are arranged at intervals along an extension direction of the monitoring section and uniformly cover the entire monitoring section. The benchmark subsystem includes a monitoring base station 4 and a benchmark point 00, which are arranged in a stable geological area more than 50 meters outside the boundary of the monitoring section of the operating line 1; The acquisition subsystem includes a total station located on the monitoring base station 4 and a data upload device connected to the total station. The total station is used to collect the three-dimensional coordinate data of the monitoring point 2, and the data upload device uploads the collected data to the cloud in real time; The control center includes a data transceiver control terminal configured to remotely control the total station to collect data and receive and process monitoring data from the cloud; The early warning subsystem includes an automatic early warning software module, which is used to analyze data mutations and over-limit situations in real time and trigger early warnings.

[0046] Through this embodiment, the system can realize comprehensive, real-time and accurate monitoring of the operating line 1 during the construction period of the cross-operating railway, timely discover and warn potential safety hazards, and ensure the safe and stable operation of the operating line 1.

[0047] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The embodiments shown in the embodiments are only part of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs a structure and embodiment similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A method for monitoring an operating line during construction of a cross-operating railway, comprising: A plurality of monitoring points (2) are arranged on both sides of the operation line (1), the extension area of ​​the plurality of monitoring points (2) forms a monitoring section, a plurality of monitoring sections (3) are continuously constructed at the monitoring section, the plurality of monitoring points (2) are respectively arranged at the plurality of monitoring sections (3), wherein the monitoring sections (3) are planes perpendicular to the extension direction of the operation line (1) for deploying the monitoring points (2); Setting a monitoring base station (4) outside the monitoring section; Collecting current three-dimensional coordinate data of the plurality of monitoring points (2) and standard three-dimensional coordinate data of the plurality of monitoring points (2) from a monitoring base station (4); Based on the current three-dimensional coordinate data of the plurality of monitoring points (2) and the standard three-dimensional coordinate data of the plurality of monitoring points (2), obtaining the vertical change amount, the lateral change amount and the longitudinal change amount at each monitoring point (2); Based on the current three-dimensional coordinate data and the historical three-dimensional coordinate data of the plurality of monitoring points (2), obtaining the vertical offset change rate, the lateral offset change rate and the longitudinal offset change rate at each monitoring point (2); Based on the vertical offset change rate, the lateral offset change rate and the longitudinal offset change rate, the current three-dimensional coordinate data is judged to be abnormal; Based on the vertical change, lateral change and longitudinal change, and the preset threshold value, the settlement and horizontal displacement of the operating line (1) are monitored.

2. The method for monitoring an operating line during construction of a cross-operating railway according to claim 1, characterized in that: The vertical variation, lateral variation and longitudinal variation at the monitoring section are obtained based on the current three-dimensional coordinate data of the plurality of monitoring points (2) and the standard three-dimensional coordinate data of the plurality of monitoring points (2), include, Obtain the standard three-dimensional coordinate data of the four outermost monitoring points (2) among the plurality of monitoring points (2), wherein the standard three-dimensional coordinate data of the four outermost monitoring points (2) are DM1 ( , , )、DM2( , , ), monitoring point DM1 and monitoring point DM2 are located in the same monitoring section (3), and monitoring point DM3 and monitoring point DM4 are located in the same monitoring section (3); Construct a horizontal reference line DM2-DM4 based on monitoring points DM2 and DM4; Constructing a longitudinal reference line DM1-DM2 based on monitoring points DM1 and DM2; The current three-dimensional coordinate data is ( , , ), the standard three-dimensional coordinate data is ( , , ), where the current three-dimensional coordinate data ( , , ) is obtained by real-time observation, and the standard three-dimensional coordinate data is ( , , ) is obtained from observation before construction; The lateral change at each monitoring point (2) is the current plane coordinate of the corresponding monitoring point (2) ( , ) to the horizontal reference line DM2-DM4 and the standard plane coordinates of the monitoring point (2) ( , ) to the horizontal reference line DM2-DM4; The longitudinal variation at each monitoring point (2) is the distance between the current plane coordinate of the corresponding monitoring point (2) and the longitudinal reference line DM1-DM2 and the standard plane coordinate of the monitoring point (2) ( , ) to the longitudinal reference line DM1-DM2; The longitudinal change at each monitoring point (2) is the current vertical coordinate of the corresponding monitoring point (2) Standard vertical coordinates of monitoring point (2) difference.

3. The method for monitoring an operating line during construction of a cross-operating railway according to claim 2, characterized in that: The expression of the longitudinal reference line DM1-DM2 is: ； The expression of the horizontal reference line DM2-DM4 is: 。 4. The method for monitoring operating lines during construction of a cross-operational railway according to claim 3, characterized in that: Monitoring point (2) current plane coordinates ( , ) to the straight line DM1-DM2 is the first horizontal parameter ,in, ； Monitoring point (2) current plane coordinates ( , ) to the straight line DM2-DM4 is the second level parameter ,in, 。 5. The method for monitoring an operating line during construction of a cross-operating railway according to claim 1, characterized in that: Based on the current three-dimensional coordinate data and historical three-dimensional coordinate data of the plurality of monitoring points (2), the vertical displacement change rate, the lateral displacement change rate and the longitudinal displacement change rate at each monitoring point 2 are obtained, including establishing a vertical displacement analysis coordinate system with a time axis. t is the X coordinate, vertical coordinate As Y coordinate, generate all monitoring points 2 Line chart, where the vertical offset change rate is ; Establish a horizontal displacement analysis coordinate system and extract the horizontal parameters of all monitoring points (2) in the same monitoring section 3. and , draw with synchronized time axis -t line chart and -t line graph, where the lateral offset change rate of each monitoring point 2 is The longitudinal offset change rate is ; Δ t is the data collection period, is the first level parameter change of monitoring point (2), is the change in residual water at the second level of monitoring point (2), For monitoring point (2) Change.

6. The method for monitoring an operating line during construction of a cross-operating railway according to claim 5, characterized in that: Based on the vertical offset change rate, lateral offset change rate and longitudinal offset change rate, the current three-dimensional coordinate data is judged to be abnormal, including: Horizontal anomaly determination is performed based on the lateral and longitudinal offset change rates. or When , it is judged as abnormal horizontal deviation; Determine vertical anomaly based on vertical deviation change rate. When , it is determined to be abnormal vertical deviation, where σ 、 η 、 is the preset threshold, and is the first level parameter variation at different monitoring points (2) in the same monitoring section (3), and is the variation of the second level parameter at different monitoring points (2) in the same monitoring section (3); When there is an abnormal deviation, the three-dimensional coordinates of the point are manually reviewed.

7. The method for monitoring an operating line during construction of a cross-operating railway according to claim 1, characterized in that: Based on the vertical change, lateral change and longitudinal change, and the preset threshold value, the settlement and horizontal displacement monitoring of the operating line (1) is carried out, including, Construct a displacement calculation model: ， in, is the longitudinal change in the current period, is the cumulative longitudinal change, is the horizontal change in the current period, Cumulative lateral change, is the vertical change in the current period, Cumulative vertical change, 、 and is the standard data of the first observation period, 、 and Standard data for current observation; set up early warning mechanism, when 、 、 、 、 and When any of the above exceeds the preset threshold, the warning action is executed.

8. The method for monitoring an operating line during construction of a cross-operating railway according to claim 1, characterized in that: The monitoring point (2) uses an L-shaped prism bracket (5) fixed to the center position of the upper surface of the sleeper by expansion bolts; a reflective prism (6) is installed at the end of the prism bracket (5), the height of the reflective prism (6) is lower than the driving limit, and the surface of the reflective prism (6) is provided with a high reflectivity film.

9. The method for monitoring an operating line during construction of a cross-operating railway according to claim 1, characterized in that: The monitoring base station (4) adopts a mandatory observation pier (7), wherein the construction of the mandatory observation pier (7) includes the following steps: Step A: vertically excavate a foundation pit with a depth of 1-2 meters; Step B: Place the PVC pipe (9) vertically in the foundation pit; Step C: pouring C30 concrete into the PVC pipe (9) and the foundation pit; Step D: Before the initial setting of the concrete, an observation plate (8) with a level calibration function is installed on the top of the PVC pipe (9); Step E: After the concrete has finally set and hardened, a mandatory observation pier (7) is formed.

10. An operating line monitoring system during construction across an operating railway, including: An observation subsystem comprising a plurality of monitoring points (2), wherein the monitoring points (2) are arranged in a monitoring section of an operating line (1), wherein the monitoring section is a continuous railway section in the operating line (1) where displacement monitoring is required, and wherein the plurality of monitoring points (2) are arranged at intervals along an extension direction of the monitoring section and uniformly cover the entire length of the monitoring section; A reference subsystem comprising a monitoring base station (4) and a reference point (00), wherein the monitoring base station (4) and the reference point (00) are arranged in a stable geological area more than 50 meters outside the boundary of the monitoring section of the operating line (1); A collection subsystem, comprising a total station located on a monitoring base station (4) and a data upload device connected to the total station, wherein the total station is used to collect three-dimensional coordinate data of the monitoring point (2), and the data upload device uploads the collected data to the cloud in real time; The control center includes a data transceiver control terminal configured to remotely control the total station to collect data and receive and process monitoring data from the cloud; The early warning subsystem includes an automatic early warning software module, which is used to analyze data mutations and over-limit situations in real time and trigger early warnings.

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