An online monitoring system for tunnel seismic performance based on tunnel support components

Abstract

The present invention relates to the technical field of tunnel seismic performance monitoring, and specifically to an online monitoring system for tunnel seismic performance based on tunnel support components, comprising: a monitoring component, a local processor, a data black box and a data center. The monitoring component is used to be arranged on the tunnel support component, and the monitoring component is electrically connected to the local processor. The monitoring component includes: at least one of a force monitoring sensor, a deformation monitoring sensor, a displacement monitoring sensor and a vibration monitoring sensor. The local processor is electrically connected to the data black box, and the local processor is used to copy the original monitoring data of the monitoring component to obtain copied data. The local processor is also used to save the original monitoring data to the data black box and send the copied data to the data center. The data black box only opens the incremental write permission of the local processor. It can realize real-time online monitoring of the actual seismic performance of the tunnel, ensure the integrity and stability of data acquisition, and realize the data reproducibility.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel seismic performance monitoring, and in particular to an online monitoring system for tunnel seismic performance based on tunnel supporting components. Background Art

[0002] In the seismic performance monitoring of tunnels, the actual seismic performance of the tunnel is usually evaluated and judged based on the changes in the mechanical properties of the supporting components in the tunnel. However, it often relies on on-site surveys, which is not only time-consuming and labor-intensive, but also inefficient and unable to provide timely feedback and tracking of the actual situation of the tunnel.

[0003] Although there are some examples of using monitoring sensors to help monitor underground spaces, there are problems with unstable monitoring data collection and poor reproducibility, and their application value is subject to many restrictions.

[0004] In view of this, this application is hereby filed. Summary of the invention

[0005] The purpose of the present invention is to provide an online monitoring system for the seismic performance of a tunnel based on tunnel support components, which can realize real-time online monitoring of the actual seismic performance of the tunnel, ensure the integrity and stability of data acquisition, and at the same time realize the reproducibility of data. It can provide reference data for the performance improvement of tunnel support components, and help promote the progress of tunnel seismic performance technology research and development.

[0006] The embodiment of the present invention is achieved as follows:

[0007] A tunnel seismic performance online monitoring system based on tunnel support components comprises: a monitoring component, a local processor, a data black box and a data center.

[0008] The monitoring component is arranged on the tunnel supporting member, the monitoring component is electrically connected to the local processor, and the monitoring component includes: at least one of a force monitoring sensor, a deformation monitoring sensor, a displacement monitoring sensor and a vibration monitoring sensor.

[0009] The local processor is electrically connected to the data black box. The local processor is used to copy the original monitoring data of the monitoring component to obtain the copied data. The local processor is also used to save the original monitoring data to the data black box and send the copied data to the data center.

[0010] Among them, the data black box only opens incremental write permissions for the local processor.

[0011] Furthermore, when the local processor saves the original monitoring data to the data black box, a writing process is executed, and the writing process includes the following steps:

[0012] S1. Confirm the distribution points of each monitoring component on the tunnel support component according to the two-dimensional map of the tunnel support component, determine the reference point of the tunnel support component according to the two-dimensional map, and determine the distance from the reference point to the distribution point, which is recorded as the layout distance.

[0013] S2. Determine the maximum distance from the reference point to other points on the tunnel support member according to the two-dimensional graph, record it as a reference distance, and record the ratio of the layout distance to the reference distance as a first ratio.

[0014] S3, constructing a data unit. Each data unit includes a number of data groups, which are arranged in parallel in sequence, each data group includes a number of data blocks arranged in a line, and a starting end is specified for the data group.

[0015] S4. In the data unit, a data group is allocated to each monitoring component, and the original monitoring data of the monitoring component is written into a data block of the corresponding data group, which is recorded as a storage block, and other data blocks of the corresponding data group are processed as null values. The ratio of the distance value from the storage block to the starting end of the data group to the total length value of the data group is recorded as a second ratio, and the second ratio matches the first ratio.

[0016] S5. Write the data unit into the data black box.

[0017] Furthermore, the reference point is the bottom midpoint of the tunnel support member in the two-dimensional diagram.

[0018] Furthermore, a data space for storing data units is constructed in the data black box, and a time axis is set in the data space.

[0019] The writing process also includes the following steps:

[0020] S6. According to the two-dimensional graph, with the reference point as the origin, a first reference line is constructed along the height direction of the tunnel support member, with one side of the first reference line as the positive direction and the other side as the negative direction.

[0021] S7. Construct a first connection line between each distribution point and the reference point, and use the angle between the first connection line and the first reference line as a first positioning angle of the corresponding distribution point.

[0022] In S5, when a data unit is written to the data black box, it includes:

[0023] S51, delineating a two-dimensional boundary line for the data unit, and taking the edge line corresponding to the starting point of the data group as the matching edge line.

[0024] S52, determining a matching point on the matching edgeline, and constructing a second reference line along a direction perpendicular to the matching edgeline with the matching point as the origin, with one side of the second reference line being a positive direction and the other side being a negative direction. The positive and negative relationship of the position of the data group relative to the second reference line matches the positive and negative relationship of the position of the distribution point relative to the first reference line.

[0025] S53, taking a data block in each data group as an orientation block, constructing a second line between each orientation block and the matching point, and taking the angle between the second line and the second reference line as the second positioning angle of the corresponding data group, wherein the first positioning angle matches the second positioning angle.

[0026] S54: Determine the acquisition time of the original monitoring data in the data unit, and determine the time node corresponding to the acquisition time on the time axis, and establish a matching relationship between the matching point and the time node.

[0027] Furthermore, the data space is an Excel table.

[0028] The beneficial effects of the technical solution of the embodiment of the present invention include:

[0029] The data black box of the online monitoring system for the seismic performance of a tunnel based on tunnel support components provided by the embodiment of the present invention can save the original monitoring data, whether in the test process of the seismic performance of the tunnel in the laboratory stage or in the process of seismic monitoring of the actual tunnel. Even if the tunnel has obvious damage or deformation during the vibration process, resulting in damage to the external transmission channel of the data, so that the data center cannot smoothly receive the copy data sent by the local processor, the data black box can also save the local original monitoring data as much as possible. This makes it convenient for relevant technical personnel to obtain more comprehensive original monitoring data during the vibration process from the data black box afterwards, so as to make a more comprehensive, accurate and objective evaluation of the actual performance of the tunnel support structure. The technical solution of the present application effectively improves the integrity and reproducibility of the data.

[0030] In general, the online monitoring system for seismic performance of a tunnel based on tunnel support components provided in the embodiment of the present invention can realize real-time online monitoring of the actual seismic performance of the tunnel, ensure the integrity and stability of data acquisition, and at the same time realize the reproducibility of data. It can provide reference data for the performance improvement of tunnel support components and help promote the progress of research and development of tunnel seismic performance technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of the overall structure of an online monitoring system for seismic performance of a tunnel based on tunnel support components provided in an embodiment of the present invention;

[0033] Figure 2 It is a schematic diagram of the arrangement of monitoring components in tunnel support members;

[0034] Figure 3 is a schematic diagram of the arrangement distance and the first positioning angle;

[0035] Figure 4 Schematic diagram of the composition of a data unit;

[0036] Figure 5 This is a schematic diagram after writing data units into the data space;

[0037] Figure 6 This is a schematic diagram for confirming the second positioning angle in the data space.

[0038] Description of reference numerals:

[0039] C1-first monitoring component; C2-second monitoring component; C3-third monitoring component; C4-fourth monitoring component; C5-fifth monitoring component; C6-sixth monitoring component; C7-seventh monitoring component; C8-eighth monitoring component; 100-local processor; 200-data black box; t-time axis; 300-data center; 400-data unit; 410-data group; 411-data block; 412-storage block; 413-orientation block; 420-matching edge; 500-tunnel support component. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0044] It should be understood that the "system", "unit" and the like used in the present invention are a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0045] As shown in this specification and claims, unless the context clearly provides an example, the words "a", "an", "the", etc. do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0046] The flowcharts used in this specification are used to illustrate the operations performed by the system according to the embodiments of this specification. It is understood that the operations of each step are not necessarily performed precisely in order. On the contrary, the steps can be processed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or one or more operations can be removed from these processes.

[0047] In order to overcome the shortcomings of the prior art, please refer to Figure 1 This embodiment provides an online monitoring system for seismic performance of a tunnel based on a tunnel support component 500 , the system comprising: a monitoring component, a local processor 100 , a data black box 200 and a data center 300 .

[0048] The monitoring assembly is arranged on the tunnel supporting member 500 to monitor the condition of the tunnel supporting member 500, thereby facilitating the evaluation of the actual seismic performance of the tunnel.

[0049] The monitoring component is electrically connected to the local processor 100 to send raw monitoring data to the local processor 100. The monitoring component includes at least one of a force monitoring sensor, a deformation monitoring sensor, a displacement monitoring sensor, and a vibration monitoring sensor. The type and quantity of the specific monitoring components used can be flexibly adjusted according to actual needs, and this application does not impose specific restrictions. For example, Figure 1 As shown, a total of 8 monitoring components are provided, namely: a first monitoring component C1, a second monitoring component C2, a third monitoring component C3, a fourth monitoring component C4, a fifth monitoring component C5, a sixth monitoring component C6, a seventh monitoring component C7 and an eighth monitoring component C8, and the present invention is not limited thereto. The actual arrangement of the monitoring components can be determined according to actual conditions and needs, and this application does not impose any specific restrictions.

[0050] The local processor 100 is electrically connected to the data black box 200 . The local processor 100 is used to copy the original monitoring data of the monitoring component to obtain the copied data. The local processor 100 is also used to save the original monitoring data to the data black box 200 and send the copied data to the data center 300 .

[0051] The data black box 200 is used to store the original monitoring data. Among them, the data black box 200 only opens the incremental write permission of the local processor 100. In other words, the local processor 100 can only write new original monitoring data into the data black box 200, but cannot modify the data already written in the data black box 200.

[0052] The data center 300 is used to uniformly collect and manage monitoring data of different tunnels to achieve remote real-time supervision.

[0053] Through the above design, the data black box 200 can save the original monitoring data, whether in the test process of the seismic performance of the tunnel in the laboratory stage or in the process of seismic monitoring of the actual tunnel, even if the tunnel is significantly damaged or deformed during the vibration process, resulting in damage to the external transmission channel of the data, so that the data center 300 cannot smoothly receive the copy data sent by the local processor 100. For the data black box 200, since the distance between the data black box 200 and the local processor 100 is much smaller than the distance between the local processor 100 and the data center 300, the probability of the data transmission line between the data black box 200 and the local processor 100 being damaged is small, and the data black box 200 can also save the local original monitoring data as much as possible. In addition, the probability of the data transmission line between the data black box 200 and the local processor 100 being damaged can be further reduced by installing the local processor 100 on the shell of the data black box 200 (not limited to this), so as to be more conducive to the data black box 200 to save the local original monitoring data. This makes it easier for relevant technical personnel to obtain more comprehensive original monitoring data during the vibration process from the data black box 200 afterwards, thereby making a more comprehensive, accurate and objective evaluation of the actual performance of the tunnel support structure.

[0054] The technical solution of the present application effectively improves the integrity and reproducibility of data.

[0055] In general, the online monitoring system for seismic performance of a tunnel based on the tunnel support component 500 provided in this embodiment can realize real-time online monitoring of the actual seismic performance of the tunnel, ensure the integrity and stability of data collection, and at the same time realize the reproducibility of data. It can provide reference data for the performance improvement of the tunnel support component 500, and help promote the progress of research and development of tunnel seismic performance technology.

[0056] Furthermore, in this embodiment, when the local processor 100 saves the original monitoring data to the data black box 200, a writing process is executed, and the writing process includes the following steps:

[0057] S1. Confirm the distribution points of each monitoring component on the tunnel support member 500 according to the two-dimensional diagram of the tunnel support member 500, such as Figure 2 As shown, in the two-dimensional diagram of the tunnel support member 500, the distribution points of the first monitoring component C1, the second monitoring component C2, the third monitoring component C3, the fourth monitoring component C4, the fifth monitoring component C5, the sixth monitoring component C6, the seventh monitoring component C7 and the eighth monitoring component C8 are marked.

[0058] The reference point of the tunnel support member 500 is determined according to the two-dimensional graph, and the distance from the reference point to each distribution point is determined and recorded as the layout distance. Optionally, the reference point is the bottom midpoint of the tunnel support member 500 in the two-dimensional graph, such as Figure 2 As shown in the middle reference point D, but not limited to this.

[0059] like Figure 2 As shown, the distances from each distribution point to the reference point D (i.e., layout distances) correspond to: the length of line segment C1-D, the length of line segment C2-D, the length of line segment C3-D, the length of line segment C4-D, the length of line segment C5-D, the length of line segment C6-D, the length of line segment C7-D, and the length of line segment C8-D.

[0060] S2. Determine the maximum distance from the reference point to other points on the tunnel support member 500 according to the two-dimensional graph, and record it as the reference distance. Figure 2 As shown, in the two-dimensional diagram of the tunnel support member 500, the distance from the reference point D to any point on the tunnel support member 500 reaches the maximum when the point is point P. Therefore, the reference distance is the length of the line segment DP.

[0061] The ratio of the layout distance to the reference distance is recorded as the first ratio. Figure 3 As shown, that is to say, the first ratio corresponding to the first monitoring component C1 = the length of line segment C1-D / the length of line segment DP, the first ratio corresponding to the second monitoring component C2 = the length of line segment C2-D / the length of line segment DP, the first ratio corresponding to the third monitoring component C3 = the length of line segment C3-D / the length of line segment DP, the first ratio corresponding to the fourth monitoring component C4 = the length of line segment C4-D / the length of line segment DP, the first ratio corresponding to the fifth monitoring component C5 = the length of line segment C5-D / the length of line segment DP, the first ratio corresponding to the sixth monitoring component C6 = the length of line segment C6-D / the length of line segment DP, the first ratio corresponding to the seventh monitoring component C7 = the length of line segment C7-D / the length of line segment DP, and the first ratio corresponding to the eighth monitoring component C8 = the length of line segment C8-D / the length of line segment DP.

[0062] S3, constructing a data unit 400. Each data unit 400 includes a plurality of data groups 410, which are arranged in parallel in sequence, each data group 410 includes a plurality of data blocks 411 arranged in a line, and a starting end is specified for the data group 410, for example, the left end of the data group 410 is the starting end.

[0063] like Figure 4As shown, the number of data groups 410 in each data unit 400 is the same as the number of monitoring components arranged in the tunnel support member 500, and the number of data blocks 411 in each data group 410 is also the same. Specifically, the specific number of data blocks 411 in the data group 410 can be flexibly adjusted according to actual conditions and needs.

[0064] Optionally, the larger the reference distance (i.e., the length of the line segment DP), the larger the number of data blocks 411 in the data group 410 can be set. This is because when the reference distance is larger, if the number of data blocks 411 in the data group 410 remains unchanged, the distance range represented by a single data block 411 becomes larger, which will lead to an increase in error. Adaptively increasing the number of data blocks 411 in the data group 410 can effectively improve accuracy and reduce errors.

[0065] S4. In the data unit 400, a data group 410 is allocated to each monitoring component. Figure 4 In the data unit 400 shown, from top to bottom, the first data group 410 corresponds to the first monitoring component C1, the second data group 410 corresponds to the second monitoring component C2, the third data group 410 corresponds to the third monitoring component C3, the fourth data group 410 corresponds to the fourth monitoring component C4, the fifth data group 410 corresponds to the fifth monitoring component C5, the sixth data group 410 corresponds to the sixth monitoring component C6, the seventh data group 410 corresponds to the seventh monitoring component C7, and the eighth data group 410 corresponds to the eighth monitoring component C8.

[0066] The original monitoring data of the monitoring component is written into a data block 411 of the corresponding data group 410, which is recorded as a storage block 412. That is, when the original monitoring data of a monitoring component is written into a data block 411, the data block 411 becomes the storage block 412. At the same time, other data blocks 411 in the corresponding data group 410 are processed as null values, that is, for the data blocks 411 that have not been written with the original monitoring data of the monitoring component, a null value is contained therein.

[0067] The ratio of the distance value from the storage block 412 to the starting end of the data group 410 in which it is located to the total length value of the data group 410 in which it is located is recorded as the second ratio. Figure 4As shown, each data group 410 has 20 data blocks 411. For the first row of data group 410 corresponding to the first monitoring component C1, the storage block is the 9th data block 411 from the starting end, then the distance value from the storage block 412 to the starting end of the data group 410 corresponds to the distance of 9 data blocks 411 (including itself), so the second ratio corresponding to the first monitoring component C1 is 9 / 20. Similarly, the second ratio corresponding to the second monitoring component C2 is 13 / 20, the second ratio corresponding to the third monitoring component C3 is 17 / 20, the second ratio corresponding to the fourth monitoring component C4 is 19 / 20, the second ratio corresponding to the fifth monitoring component C5 is 19 / 20, the second ratio corresponding to the sixth monitoring component C6 is 17 / 20, the second ratio corresponding to the seventh monitoring component C7 is 13 / 20, and the second ratio corresponding to the eighth monitoring component C8 is 9 / 20.

[0068] It should be noted that when selecting the data block 411 to write the original monitoring data of the monitoring component, it is necessary to satisfy that after the selected data block 411 becomes the storage block 412, the second ratio matches the first ratio.

[0069] It should be specially noted that the second ratio "matches" the first ratio, which does not mean that the two values ​​have to be exactly the same, but can also be in an approximate relationship, and the allowable range of this approximation can be flexibly adjusted according to actual conditions.

[0070] S5 , writing the data unit 400 into the data black box 200 .

[0071] Through the above design, the second ratio can be determined according to the position of the storage block 412 in the data group 410, and then the corresponding monitoring component can be found in the two-dimensional map of the tunnel support member 500 according to the second ratio. In this way, even if the data in the data black box 200 is partially damaged or lacks other content that can identify the ownership of the data, the actual ownership of the data can be inferred according to the structure of the data group 410, which provides more possibilities for data tracing.

[0072] In addition, since the data block 411 with a "null value" is set in the data group 410, it can not only help the data attribution of the storage block 412, but also improve the data security of the storage block 412. When partial data damage occurs, the data block 411 can effectively "cover" the storage block 412, increasing the possibility of the storage block 412 being saved.

[0073] That is to say, even if part of the data is damaged, it is very likely that the data block 411 with a null value is damaged, and the storage block 412 will not be affected, thereby improving the risk resistance of the data black box 200 to a certain extent, which is of positive significance for the data retention capability in the tunnel.

[0074] Furthermore, a data space for storing the data unit 400 is constructed in the data black box 200, and a time axis t is set in the data space. Figure 5 As shown, a time axis t is set in the data space.

[0075] The writing process also includes the following steps:

[0076] S6. Based on the two-dimensional diagram of the tunnel support member 500, a first reference line is constructed along the height direction of the tunnel support member 500 with the reference point as the origin, and one side of the first reference line is the positive direction and the other side is the negative direction. Figure 3 As shown, the first reference line is exactly the line segment DP. The left side of the first reference line (line segment DP) is the positive direction, and the right side of the first reference line (line segment DP) is the negative direction.

[0077] S7. Construct a first connection line between each distribution point and the reference point, and use the angle between the first connection line and the first reference line as a first positioning angle of the corresponding distribution point.

[0078] For the first monitoring component C1, the first connecting line is exactly the line segment C1-D, and the first positioning angle is the angle between the line segment C1-D and the line segment DP, that is, angle α1.

[0079] For the second monitoring component C2, the first connecting line is exactly the line segment C2-D, and the first positioning angle is the angle between the line segment C2-D and the line segment DP, that is, angle α2.

[0080] For the third monitoring component C3, the first connecting line is exactly the line segment C3-D, and the first positioning angle is the angle between the line segment C3-D and the line segment DP, that is, angle α3.

[0081] For the fourth monitoring component C4, the first connecting line is exactly the line segment C4-D, and the first positioning angle is the angle between the line segment C4-D and the line segment DP, that is, angle α4.

[0082] For the fifth monitoring component C5, the first connecting line is exactly the line segment C5-D, and the first positioning angle is the angle between the line segment C5-D and the line segment DP, that is, angle α5.

[0083] For the sixth monitoring component C6, the first connecting line is exactly the line segment C6-D, and the first positioning angle is the angle between the line segment C6-D and the line segment DP, that is, angle α6.

[0084] For the seventh monitoring component C7, the first connecting line is exactly the line segment C7-D, and the first positioning angle is the angle between the line segment C7-D and the line segment DP, that is, angle α7.

[0085] For the eighth monitoring component C8, the first connecting line is exactly the line segment C8-D, and the first positioning angle is the angle between the line segment C8-D and the line segment DP, that is, angle α8.

[0086] In S5, when the data unit 400 is written into the data black box 200, it includes:

[0087] S51, delineate a two-dimensional boundary line for the data unit 400, and use the edge line corresponding to the starting point of the data group 410 as the matching edge line 420, such as Figure 5 shown.

[0088] S52: determine a matching point on the matching edge line 420, and construct a second reference line in a direction perpendicular to the matching edge line 420 with the matching point as the origin, with one side of the second reference line being the positive direction and the other side being the negative direction. Figure 5 As shown, a matching point t1 is determined on the matching edge line 420, and a second reference line k1 is constructed, with the upper side of the second reference line k1 as the positive direction and the lower side of the second reference line k1 as the negative direction.

[0089] The positive and negative relationship of the position of the data group 410 relative to the second reference line matches the positive and negative relationship of the position of the distribution point relative to the first reference line. Figure 3 In the embodiment, the first monitoring component C1, the second monitoring component C2, the third monitoring component C3 and the fourth monitoring component C4 are located in the positive direction of the first baseline, and the fifth monitoring component C5, the sixth monitoring component C6, the seventh monitoring component C7 and the eighth monitoring component C8 are located in the negative direction of the first baseline. Figure 5 In the figure, the data groups 410 corresponding to the first monitoring component C1, the second monitoring component C2, the third monitoring component C3 and the fourth monitoring component C4 are also located in the positive direction of the second baseline, and the data groups 410 corresponding to the fifth monitoring component C5, the sixth monitoring component C6, the seventh monitoring component C7 and the eighth monitoring component C8 are also located in the negative direction of the second baseline.

[0090] S53, taking a data block 411 in each data group 410 as an orientation block 413, constructing a second line between each orientation block 413 and a matching point, and taking the angle between the second line and the second reference line as the second positioning angle of the corresponding data group 410.

[0091] like Figure 6 As shown, the orientation blocks 413 of each data group 410 correspond to points f1, f2, f3, f4, f5, f6, f7 and f8 respectively. For the first monitoring component C1, the second connecting line of the corresponding data group 410 (the first row of data group 410) is the line segment t1-f1, and the corresponding second positioning angle is the angle between the line segment t1-f1 and the second reference line k1.

[0092] When the data block 411 is selected as the orientation block 413 in the data group 410 , it needs to satisfy that: the first positioning angle matches the second positioning angle.

[0093] It should be noted that the "matching" of the first positioning angle and the second positioning angle does not mean that the values ​​of the two must be exactly the same, but can also be an approximate relationship, and the allowable range of this approximation can be flexibly adjusted according to the actual situation. This is because the number of monitoring components is limited, and the first positioning angle corresponding to each monitoring component is different. In actual application, even if an approximate judgment method is adopted, there is often only one second positioning angle that can correspond to it. Even if there are two monitoring components corresponding to the same first positioning angle, the corresponding relationship can be further comprehensively judged in combination with the first ratio and / or the second ratio. Through this design, the difficulty and complexity of constructing the data unit 400 can be effectively reduced.

[0094] S54: Determine the acquisition time of the original monitoring data in the data unit 400, and determine the time node corresponding to the acquisition time on the time axis t. Establish a matching relationship between the matching point and the time node.

[0095] Through the above design, the data unit 400 can not only record the original monitoring data of the monitoring component, but also can invert the monitoring components corresponding to each storage block 412 through the structure of the data unit 400. Even in the case of partial data loss, the existing data can be used for data inversion and traceability to complete the deduction of data ownership, thereby effectively improving the data availability.

[0096] Based on the above design, the original monitoring data acquired by the monitoring component at different time nodes can be classified into different data units 400 and associated with the time axis t. This also improves the time attribute of the original monitoring data, making it easier to more accurately evaluate the actual seismic performance of the tunnel.

[0097] Further, optionally, the data space can be selected as an Excel table. In this case, in the Excel table, the time axis t can be constructed along the vertical direction, and a cell in the Excel table can be used as a data block 411. When constructing the data group 410, a corresponding number of cells can be defined according to actual needs to construct the data group 410, and the data group 410 with the required number of rows can be defined according to needs to construct the data unit 400. The size of the cell of the Excel table is set to be unchangeable.

[0098] The implementation form of the data space is not limited to this and can be flexibly selected according to actual conditions. This application does not make any specific limitations.

[0099] To sum up, the online monitoring system for seismic performance of a tunnel based on the tunnel support component 500 provided in the embodiment of the present invention can realize real-time online monitoring of the actual seismic performance of the tunnel, ensure the integrity and stability of data acquisition, and at the same time realize the reproducibility of data. It can provide reference data for the performance improvement of the tunnel support component 500, and help promote the progress of research and development of tunnel seismic performance technology.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An online monitoring system for tunnel seismic performance based on tunnel support components, characterized in that: include: Monitoring components, local processors, data black boxes, and data centers; The monitoring component is arranged on the tunnel support member, the monitoring component is electrically connected to the local processor, and the monitoring component includes: at least one of a force monitoring sensor, a deformation monitoring sensor, a displacement monitoring sensor, and a vibration monitoring sensor; The local processor is electrically connected to the data black box, and is used to copy the original monitoring data of the monitoring component to obtain the copied data. The local processor is also used to save the original monitoring data to the data black box, and send the copied data to the data center; The data black box only opens incremental write permission to the local processor; When the local processor saves the original monitoring data to the data black box, a writing process is executed, and the writing process includes the following steps: S1. Confirm the distribution points of each monitoring component on the tunnel support component according to the two-dimensional map of the tunnel support component, determine the reference point of the tunnel support component according to the two-dimensional map, and determine the distance from the reference point to the distribution point, which is recorded as the layout distance; S2. Determine the maximum distance from the reference point to other points on the tunnel support member according to the two-dimensional graph, and record it as a reference distance; record the ratio of the layout distance to the reference distance as a first ratio; S3, constructing data units; each of the data units includes a plurality of data groups, the data groups are arranged in parallel in sequence, each of the data groups includes a plurality of data blocks arranged in a line, and a starting end is specified for the data group; S4, in the data unit, assigning a data group to each monitoring component, writing the original monitoring data of the monitoring component into a data block of the corresponding data group, recorded as a storage block, and performing null value processing on the other data blocks of the corresponding data group; wherein the ratio of the distance value from the storage block to the starting end of the data group where it is located to the total length value of the data group where it is located is recorded as a second ratio, and the second ratio matches the first ratio; S5. Write the data unit into the data black box.

2. The online monitoring system for seismic performance of a tunnel based on tunnel support components according to claim 1 is characterized in that: The reference point is the bottom midpoint of the tunnel support member in the two-dimensional image.

3. The online monitoring system for seismic performance of a tunnel based on tunnel support components according to claim 1 is characterized in that: The data black box is constructed with a data space for storing the data unit, and a time axis is set in the data space; The writing process also includes the following steps: S6. According to the two-dimensional graph, taking the reference point as the origin, constructing a first reference line along the height direction of the tunnel support member, with one side of the first reference line as the positive direction and the other side as the negative direction; S7, constructing a first connection line between each of the distribution points and the reference point, and taking the angle between the first connection line and the first reference line as a first positioning angle of the corresponding distribution point; In S5, when the data unit is written into the data black box, it includes: S51, delineating a two-dimensional boundary line for the data unit, and taking the edge line corresponding to the starting end of the data group as a matching edge line; S52, determining a matching point on the matching edgeline, and constructing a second reference line along a direction perpendicular to the matching edgeline with the matching point as the origin, wherein one side of the second reference line is a positive direction and the other side is a negative direction; wherein the positive and negative relationship of the position of the data group relative to the second reference line matches the positive and negative relationship of the position of the distribution point relative to the first reference line; S53, using one of the data blocks in each of the data groups as an orientation block, constructing a second line between each of the orientation blocks and the matching point, and using the angle between the second line and the second reference line as a second positioning angle of the corresponding data group; wherein the first positioning angle matches the second positioning angle; S54, determining the acquisition time of the original monitoring data in the data unit, and determining a time node corresponding to the acquisition time on the time axis; and establishing a matching relationship between the matching point and the time node.

4. The online monitoring system for seismic performance of a tunnel based on tunnel support components according to claim 3 is characterized in that: The data space is an Excel table.

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