A mine bolt evaluation system based on monitoring data

Abstract

The present invention discloses a mine bolt evaluation system based on monitoring data, which relates to the field of resource development and solves the problem of poor evaluation effect existing in the mine bolt evaluation system. It includes a data acquisition module: used to monitor the working environment of each mine bolt to obtain mine bolt monitoring data and get the preliminary collected data of the mine bolt; a monitoring frequency module: used to obtain the monitoring frequency of each mine bolt during the bolt monitoring period by analyzing the preliminary collected data of the mine bolt and get the bolt periodic monitoring frequency data; a periodic monitoring module: used to perform position monitoring and deformation monitoring on the mine bolt to obtain bolt periodic monitoring data; a comprehensive evaluation module: used to comprehensively evaluate the safety of the mine bolt according to the bolt periodic monitoring data. The present invention can improve the accuracy and pertinence of the evaluation results.

Description

Technical Field

[0001] The present invention belongs to the field of resource development, relates to data analysis technology, and specifically is a mine bolt evaluation system based on monitoring data. Background Art

[0002] When the existing mine bolt evaluation system evaluates mine bolts, it has the following specific defects:

[0003] 1. When the existing mine bolt evaluation system evaluates mine bolts, it usually conducts a unified safety evaluation on the mine bolts in a region, and cannot determine the targeted monitoring frequency according to the local differences of each mine bolt, resulting in a lack of pertinence in the evaluation process.

[0004] 2. When the existing mine bolt evaluation system evaluates mine bolts, it often conducts safety evaluation through the deformation degree of the mine bolts, with the problem of single evaluation data, which easily leads to the lack of accuracy of the evaluation results.

[0005] Therefore, we propose a mine bolt evaluation system based on monitoring data. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a mine bolt evaluation system based on monitoring data. The present invention is based on selecting multiple mine bolts in the target mine to obtain the selected data of the mine bolts, and monitoring the working environment of each mine bolt to obtain the monitoring data of the mine bolts, obtaining the preliminary acquisition data of the mine bolts, marking a bolt monitoring cycle, obtaining the monitoring frequency of each mine bolt during the bolt monitoring cycle by analyzing the preliminary acquisition data of the mine bolts, obtaining the bolt cycle monitoring frequency data, conducting periodic position monitoring on each mine bolt according to the bolt cycle monitoring data to obtain the bolt position evaluation coefficient, conducting periodic deformation monitoring on each mine bolt to obtain the bolt deformation evaluation coefficient, obtaining the bolt cycle monitoring data, obtaining the bolt safety evaluation coefficient of each mine bolt according to the bolt cycle monitoring data, obtaining the threshold value of the bolt safety evaluation coefficient and comparing it numerically with the bolt safety evaluation coefficient, and conducting a comprehensive safety evaluation according to the numerical comparison result.

[0007] To achieve the above purpose, the present invention adopts the following technical scheme: A mine bolt evaluation system based on monitoring data, and the specific working process of each module is as follows:

[0008] Data acquisition module: used to obtain the selected data of the mine bolts by selecting multiple mine bolts in the target mine, and monitor the working environment of each mine bolt to obtain the monitoring data of the mine bolts, and obtain the preliminary acquisition data of the mine bolts;

[0009] Monitoring frequency module: Used to mark a monitoring cycle of a bolt. By analyzing the preliminary collected data of mine bolts, the monitoring frequency of each mine bolt in the bolt monitoring cycle is obtained, and the bolt cycle monitoring frequency data is obtained.

[0010] Cycle monitoring module: Used to perform periodic position monitoring on each mine bolt according to the bolt cycle monitoring data to obtain the bolt position evaluation coefficient, and perform periodic deformation monitoring on each mine bolt to obtain the bolt deformation evaluation coefficient, and obtain the bolt cycle monitoring data.

[0011] Comprehensive evaluation module: Used to obtain the bolt safety evaluation coefficient of each mine bolt according to the bolt cycle monitoring data, and obtain the threshold of the bolt safety evaluation coefficient and compare it numerically with the bolt safety evaluation coefficient, and perform a comprehensive safety evaluation according to the numerical comparison result.

[0012] Furthermore, the data acquisition module acquires the preliminary collected data of mine bolts as follows:

[0013] Acquire the mine bolts installed in the target mine to obtain multiple mine bolts, and arbitrarily select one of the obtained multiple mine bolts as a sample mine bolt to obtain the bolt selection data.

[0014] Obtain the time value when the sample mine bolt is installed in the target mine to obtain the first characteristic time value, obtain the time value corresponding to the current moment to obtain the second characteristic time value, and calculate the time difference between the first characteristic time value and the second characteristic time value to obtain the bolt cumulative working duration.

[0015] In the target mine, mark the area where the sample mine bolt contacts the rock mass to obtain the bolt-rock mass contact area.

[0016] In the bolt-rock mass contact area, mark the part of the bolt that penetrates into the rock mass as the first bolt-rock contact area, and mark the surface area of the bolt that does not penetrate into the rock mass as the second bolt-rock contact area.

[0017] Monitor the stability of the first bolt-rock contact area to obtain the first rock mass stability coefficient.

[0018] In the second bolt-rock contact area, arbitrarily select several rock mass characteristic points, and obtain the Mohs hardness values of each rock mass characteristic point respectively to obtain multiple characteristic point hardness values, and calculate the average of the obtained multiple characteristic point hardness values to obtain the second rock mass stability coefficient.

[0019] Define the bolt cumulative working duration, the first rock mass stability coefficient, and the second rock mass stability coefficient corresponding to the sample mine bolt as the mine bolt monitoring data.

[0020] Obtain the monitoring data of each mine bolt respectively to get multiple sets of mine bolt monitoring data;

[0021] Define the multiple sets of mine bolt monitoring data and the mine bolt selection data as the preliminary mine bolt acquisition data.

[0022] Furthermore, the data acquisition module obtains the first rock mass stability coefficient as follows:

[0023] Obtain the surface image of the first bolt-rock contact area to get the first contact area surface image;

[0024] Obtain the historical image data of the sample mine bolt, and through the historical image data, obtain the surface image of the first bolt-rock contact area at the installation moment of the sample mine bolt to get the second contact area surface image;

[0025] In the first contact area surface image, mark the area where the mine bolt is located as the first image bolt area, and mark the area where the supporting rock mass is located as the first image rock mass area;

[0026] In the first contact area surface image, set multiple square filling blocks with the same unit area. Use the square filling blocks to fill the first image bolt area until the square filling blocks cover the first image bolt area, and count the number of square filling blocks in the first image bolt area to get the first bolt filling quantity value. Use the square filling blocks to fill the first image rock mass area until the square filling blocks cover the first image rock mass area, and count the number of square filling blocks in the first image rock mass area to get the first rock mass filling quantity value;

[0027] In the second contact area surface image, mark the area where the mine bolt is located as the second image bolt area, and mark the area where the supporting rock mass is located as the second image rock mass area;

[0028] In the second contact area surface image, set multiple square filling blocks with the same unit area. Use the square filling blocks to cover the second image bolt area and count the number of square filling blocks required to cover the second image bolt area to get the second bolt filling quantity value. Use the square filling blocks to cover the second image rock mass area and count the number of square filling blocks required to cover the second image rock mass area to get the second rock mass filling quantity value;

[0029] Calculate the second rock mass stability coefficient from the first bolt filling quantity value, the second bolt filling quantity value, the first rock mass filling quantity value, and the second rock mass filling quantity value;

[0030] Calculate the second rock mass stability coefficient, and the specific formula is as follows:

[0031] ;

[0032] Among them, Ywx2 is the stability coefficient of the second rock mass, Mts1 is the filling quantity value of the first bolt, Mts2 is the filling quantity value of the second bolt, Yts1 is the filling quantity value of the first rock mass, and Yts2 is the filling quantity value of the second rock mass.

[0033] Furthermore, the monitoring frequency module obtains the bolt periodic monitoring frequency data as follows:

[0034] Obtain the preliminary collected data of the mine bolts, and based on the obtained monitoring data of multiple mine bolts and the selected data of the mine bolts;

[0035] Obtain the sample mine bolts according to the selected data of the mine bolts, and respectively obtain the cumulative working hours of the bolts, the stability coefficient of the first rock mass, and the stability coefficient of the second rock mass according to the monitoring data of the mine bolts corresponding to the sample mine bolts;

[0036] During the process of monitoring the mine bolts, mark the time value corresponding to the current moment as the first cycle monitoring time value. In the time period after the first cycle monitoring value, mark a second cycle monitoring time value, and name the time period between the first cycle monitoring time value and the second cycle monitoring time value as the bolt monitoring cycle;

[0037] Conduct a periodic monitoring frequency analysis on the sample mine bolts to obtain the bolt monitoring time point data;

[0038] Repeat the process of obtaining the bolt monitoring time point data corresponding to the sample mine bolts, and respectively obtain the bolt monitoring time point data corresponding to each mine bolt to obtain multiple bolt monitoring time point data;

[0039] Define the multiple bolt monitoring time point data and the bolt monitoring cycle as the bolt periodic monitoring frequency data.

[0040] Furthermore, the monitoring frequency module obtains the bolt monitoring time point data as follows:

[0041] Obtain the basic monitoring frequency of the bolt cycle, and calculate the actual monitoring frequency of the bolt cycle through the basic monitoring frequency of the bolt cycle, the cumulative working hours of the bolt, the stability coefficient of the first rock mass, and the stability coefficient of the second rock mass;

[0042] Calculate the actual monitoring frequency of the bolt cycle, and the specific formula is as follows:

[0043] ;

[0044] Wherein, Pcs is the actual monitoring frequency of the bolt in a cycle, Pcj is the basic monitoring frequency of the bolt in a cycle, Ywx1 is the first rock mass stability coefficient, Ywx2 is the second rock mass stability coefficient, and Lsc is the cumulative working duration of the bolt;

[0045] During the bolt monitoring cycle, several bolt cycle monitoring points with equal time intervals are marked, and the values corresponding to the bolt cycle monitoring points are equal to those of the actual monitoring frequency of the bolt in a cycle;

[0046] The several bolt cycle monitoring points marked during the bolt monitoring cycle are respectively named the first bolt monitoring time point to the mth bolt monitoring time point in chronological order to obtain the bolt monitoring time point data.

[0047] Further, the cycle monitoring module obtains the bolt cycle monitoring data as follows:

[0048] Obtain the bolt cycle monitoring frequency data, and obtain the bolt monitoring time point data and bolt monitoring cycle corresponding to each mine bolt according to the bolt cycle monitoring frequency data;

[0049] Obtain the first bolt monitoring time point to the mth bolt monitoring time point during the bolt monitoring cycle according to the bolt monitoring time point data corresponding to the sample mine bolt;

[0050] Monitor the position of the sample mine bolt to obtain the cycle monitoring data corresponding to the sample mine bolt;

[0051] Specifically as follows:

[0052] Obtain the mine cross-sectional view of the area where the sample mine bolt is located to obtain the sample mine cross-sectional view;

[0053] In the sample mine cross-sectional view, mark the left intersection point of the mine arc surface and the mine ground as the first position feature point, mark the right intersection point of the mine arc surface and the mine ground as the second position feature point, mark the connection of the first position feature point and the second position feature point as the first position feature line, and mark the midpoint of the first position feature line as the third position feature point;

[0054] In the sample mine cross-sectional view, mark the first position feature line as the coordinate x-axis, mark the third position feature point as the coordinate origin, make a straight line perpendicular to the coordinate x-axis at the coordinate origin to obtain the coordinate y-axis, and mark the plane rectangular coordinate system composed of the coordinate x-axis, the coordinate y-axis and the coordinate origin as the mine cross-sectional rectangular coordinate system;

[0055] Mark a feature point at the top of the sample mine bolt as the first bolt feature point. Draw a parallel line to the sample mine bolt body through the first bolt feature point, and mark the intersection point of the parallel line and the tail of the sample mine bolt as the second bolt feature point. Draw a line connecting the first bolt feature point and the second bolt feature point to obtain the bolt marking line;

[0056] Monitor the position of the sample mine bolt at the first bolt monitoring time point in the mine profile rectangular coordinate system to obtain the first bolt position monitoring value;

[0057] Repeat the process of obtaining the first bolt position monitoring value, and monitor the positions of the sample mine bolts at the second bolt monitoring time point to the m-th bolt monitoring time point to obtain the second bolt position monitoring value to the m-th bolt position monitoring value;

[0058] Calculate the bolt position evaluation coefficient from the first bolt position monitoring value to the m-th bolt position monitoring value;

[0059] Specifically as follows:

[0060] ;

[0061] Among them, Wpg is the bolt position evaluation coefficient, Wzi is the i-th bolt position monitoring value, and Wz(i - 1) is the (i - 1)-th bolt position monitoring value;

[0062] Monitor the deformation of the sample mine bolt at the first bolt monitoring time point in the mine profile rectangular coordinate system to obtain the first bolt deformation monitoring value;

[0063] Repeat the process of obtaining the first bolt deformation monitoring value, and monitor the deformations of the sample mine bolts at the second bolt monitoring time point to the m-th bolt monitoring time point to obtain the second bolt deformation monitoring value to the m-th bolt deformation monitoring value;

[0064] Calculate the bolt deformation evaluation coefficient from the first bolt deformation monitoring value to the m-th bolt deformation monitoring value;

[0065] Specifically as follows:

[0066] ;

[0067] Among them, Xpg is the bolt deformation evaluation coefficient, Xzi is the i-th bolt deformation monitoring value, and Xz(i - 1) is the (i - 1)-th bolt deformation monitoring value;

[0068] Define the bolt position evaluation coefficient and the bolt deformation evaluation coefficient as the periodic monitoring data corresponding to the sample mine bolt;

[0069] Repeat the process of obtaining the periodic monitoring data corresponding to the sample mine bolt, and obtain the periodic monitoring data corresponding to each mine bolt respectively to obtain the bolt periodic monitoring data.

[0070] Further, the periodic monitoring module obtains the first bolt position monitoring value as follows:

[0071] Obtain the polar radius length value of the bolt marking line in the rectangular coordinate system of the mine section to obtain the bolt polar radius value;

[0072] Obtain the polar angle of the bolt marking line in the rectangular coordinate system of the mine section to obtain the bolt polar angle value;

[0073] Respectively obtain the bolt polar radius reference value and the bolt polar angle reference value, and calculate the first bolt position monitoring value through the bolt polar radius value, the bolt polar angle value, the bolt polar radius reference value, and the bolt polar angle reference value;

[0074] Calculate the first bolt position monitoring value, and the specific formula is as follows:

[0075] ;

[0076] Wherein, Wz1 is the first bolt position monitoring value, Jjz is the bolt polar radius value, Jzl is the bolt polar radius reference value, Ljs is the bolt polar angle value, and Ljj is the bolt polar angle reference value.

[0077] Further, the periodic monitoring module obtains the first bolt deformation monitoring value as follows:

[0078] Mark the sample mine bolt at the first bolt monitoring time point in the rectangular coordinate system of the mine section and obtain the bolt marking line;

[0079] Randomly mark several deformation characteristic points in the sample mine bolt, and randomly select one deformation characteristic point from the marked multiple deformation characteristic points as the sample deformation characteristic point;

[0080] Draw a perpendicular line from the sample characteristic point to the bolt marking line, mark the intersection point of the perpendicular line and the bolt marking line as the deformation perpendicular intersection point, obtain the distance value between the sample deformation characteristic point and the deformation perpendicular intersection point to obtain the deformation characteristic distance corresponding to the sample deformation characteristic point, obtain the radius of the sample mine bolt to obtain the deformation reference distance, calculate the difference between the deformation characteristic distance and the deformation reference distance, and take the absolute value of the obtained difference to obtain the bolt deformation distance corresponding to the sample deformation characteristic point;

[0081] Repeat the process of obtaining the deformation distance of the bolt corresponding to the deformation feature point of the sample, obtain the deformation distance of the bolt corresponding to each deformation feature point respectively, obtain multiple bolt deformation distances, and calculate the average of the obtained multiple bolt deformation distances to obtain the first bolt deformation monitoring value.

[0082] Further, the comprehensive evaluation module obtains the bolt safety evaluation coefficient as follows:

[0083] Obtain the bolt periodic monitoring data, and obtain the periodic monitoring data corresponding to each mine bolt according to the bolt periodic monitoring data;

[0084] Obtain the bolt position evaluation coefficient and the bolt deformation evaluation coefficient according to the periodic monitoring data;

[0085] Calculate the bolt safety evaluation coefficient by calculating the bolt position evaluation coefficient and the bolt deformation evaluation coefficient;

[0086] Calculate the bolt safety evaluation coefficient, and the specific formula is as follows:

[0087] ;

[0088] Among them, Anp is the bolt safety evaluation coefficient, Wpg is the bolt position evaluation coefficient, and Xpg is the bolt deformation evaluation coefficient;

[0089] Obtain the bolt safety evaluation coefficient threshold, compare the bolt safety evaluation coefficient with the bolt safety evaluation coefficient threshold numerically, and comprehensively evaluate the safety of the mine bolt according to the numerical comparison result.

[0090] Further, the comprehensive evaluation module comprehensively evaluates the safety of the mine bolt as follows:

[0091] Obtain the bolt position evaluation coefficient threshold and the bolt deformation evaluation coefficient threshold;

[0092] Calculate the bolt safety evaluation coefficient threshold by calculating the bolt position evaluation coefficient threshold and the bolt deformation evaluation coefficient threshold;

[0093] Calculate the bolt safety evaluation coefficient threshold, and the specific formula is as follows:

[0094] ;

[0095] Among them, Anpy is the bolt safety evaluation coefficient threshold, Wpgy is the bolt position evaluation coefficient threshold, and Xpgy is the bolt deformation evaluation coefficient threshold;

[0096] If the bolt safety evaluation coefficient is greater than or equal to the bolt safety evaluation coefficient threshold, it is evaluated that the safety monitoring of the corresponding mine bolt is unqualified;

[0097] If the safety evaluation coefficient of the bolt is less than the threshold value of the bolt safety evaluation coefficient, it is evaluated that the safety monitoring of the mine bolt corresponding to it is qualified.

[0098] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0099] 1. By analyzing the initially collected data of the mine bolts, the present invention obtains the monitoring frequency of each mine bolt during the bolt monitoring period, which can effectively improve the pertinence of the monitoring evaluation frequency and realize the efficient utilization of monitoring resources;

[0100] 2. By performing periodic position monitoring on each mine bolt to obtain the bolt position evaluation coefficient, and performing periodic deformation monitoring on each mine bolt to obtain the bolt deformation evaluation coefficient, and conducting a comprehensive safety evaluation through the bolt position evaluation coefficient and the bolt deformation evaluation coefficient, the comprehensiveness of the monitoring process and the accuracy of the monitoring results can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0101] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0102] Figure 1 is the overall system block diagram of the present invention;

[0103] Figure 2 is the cross-sectional view of the sample mine of the present invention;

[0104] Figure 3 is the schematic diagram of the deformation characteristic points of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0105] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0106] Embodiment 1

[0107] Please refer to Figure 1 , the present invention provides a technical solution: a mine bolt evaluation system based on monitoring data, including a data acquisition module, a monitoring frequency module, a periodic monitoring module, a comprehensive evaluation module and a server. The data acquisition module, the monitoring frequency module, the periodic monitoring module and the comprehensive evaluation module are respectively connected to the server, and the server controls the data acquisition module, the monitoring frequency module, the periodic monitoring module and the comprehensive evaluation module respectively;

[0108] The data acquisition module obtains the data of selected mine bolts by selecting multiple mine bolts in the target mine, and monitors the working environment of each mine bolt to obtain the monitoring data of the mine bolts, thereby obtaining the preliminary collected data of the mine bolts;

[0109] Specifically as follows:

[0110] Obtain the mine bolts installed in the target mine to get multiple mine bolts, and arbitrarily select one of the obtained multiple mine bolts as a sample mine bolt to obtain the data of selected mine bolts;

[0111] It should be noted here that:

[0112] In this application, the target mine involved here is the monitored mine sample selected in the present invention;

[0113] Obtain the time value when the sample mine bolt is installed in the target mine to get the first characteristic time value, obtain the time value corresponding to the current moment to get the second characteristic time value, and calculate the time difference between the first characteristic time value and the second characteristic time value to get the cumulative working duration of the bolt;

[0114] Conduct a rock mass stability analysis on the area supported by the sample mine bolt to obtain the first rock mass stability coefficient and the first rock mass stability coefficient corresponding to the sample mine bolt;

[0115] Specifically as follows:

[0116] In the target mine, mark the area where the sample mine bolt contacts the rock mass to obtain the bolt-rock mass contact area;

[0117] It should be noted here that:

[0118] In this application, the bolt-rock mass contact area is the part of the bolt buried in the rock mass and the gap between the bolt and the rock;

[0119] In the bolt-rock mass contact area, mark the part of the bolt invading the rock mass as the first bolt-rock contact area, and mark the surface area of the bolt not invading the rock mass as the second bolt-rock contact area;

[0120] In the second bolt-rock contact area, arbitrarily select several rock mass characteristic points, obtain the Mohs hardness values of each rock mass characteristic point respectively to get multiple characteristic point hardness values, and calculate the average of the obtained multiple characteristic point hardness values to get the second rock mass stability coefficient;

[0121] Conduct a stability monitoring on the first bolt-rock contact area to obtain the first rock mass stability coefficient;

[0122] Specifically as follows:

[0123] Obtain the surface image of the first anchor-rock contact area to get the surface image of the first contact area;

[0124] Obtain the historical image data of the sample mine bolt, and through the historical image data, obtain the surface image of the first anchor-rock contact area of the sample mine bolt at the installation moment to get the surface image of the second contact area;

[0125] It should be noted here that:

[0126] The surface image of the first anchor-rock contact area involved here is specifically the externally visible light surface image of the connection area between the sample mine bolt and the rock mass;

[0127] The external shooting parameters of the surface image of the first contact area and the surface image of the second contact area involved here are the same. The external shooting parameters involved here include but are not limited to angle, distance, and focal length;

[0128] In the surface image of the first contact area, mark the area where the mine bolt is located as the first image bolt area, and mark the area where the supporting rock mass is located as the first image rock mass area;

[0129] In the surface image of the first contact area, set multiple square filling blocks with the same unit area. Use the square filling blocks to fill the first image bolt area until the square filling blocks cover the first image bolt area, and count the number of square filling blocks in the first image bolt area to get the first bolt filling quantity value. Use the square filling blocks to fill the first image rock mass area until the square filling blocks cover the first image rock mass area, and count the number of square filling blocks in the first image rock mass area to get the first rock mass filling quantity value;

[0130] In the surface image of the second contact area, mark the area where the mine bolt is located as the second image bolt area, and mark the area where the supporting rock mass is located as the second image rock mass area;

[0131] In the surface image of the second contact area, set multiple square filling blocks with the same unit area. Use the square filling blocks to cover the second image bolt area, and count the number of square filling blocks required to cover the second image bolt area to get the second bolt filling quantity value. Use the square filling blocks to cover the second image rock mass area, and count the number of square filling blocks required to cover the second image rock mass area to get the second rock mass filling quantity value;

[0132] It should be noted here that:

[0133] In this application, the area of the square filling blocks filled in the surface image of the first contact area and the surface image of the second contact area is the same, and the area is 0.01 cm2 ;

[0134] Calculate the first rock mass stability coefficient by using the first bolt filling quantity value, the second bolt filling quantity value, the first rock mass filling quantity value, and the second rock mass filling quantity value;

[0135] Calculate the first rock mass stability coefficient, and the specific formula is as follows:

[0136] ;

[0137] Wherein, Ywx2 is the first rock mass stability coefficient, Mts1 is the first bolt filling quantity value, Mts2 is the second bolt filling quantity value, Yts1 is the first rock mass filling quantity value, and Yts2 is the second rock mass filling quantity value;

[0138] Define the bolt cumulative working duration, the first rock mass stability coefficient, and the first rock mass stability coefficient corresponding to the bolts in the sample mine as the mine bolt monitoring data;

[0139] Obtain the mine bolt monitoring data corresponding to each mine bolt respectively to obtain multiple mine bolt monitoring data;

[0140] Define multiple mine bolt monitoring data and mine bolt selection data as the mine bolt preliminary acquisition data;

[0141] The data acquisition module obtains the mine bolt preliminary acquisition data and transports it to the monitoring frequency module and the periodic monitoring module;

[0142] The monitoring frequency module marks a bolt monitoring period, and obtains the monitoring frequency of each mine bolt during the bolt monitoring period by analyzing the mine bolt preliminary acquisition data to obtain the bolt periodic monitoring frequency data;

[0143] Obtain the mine bolt preliminary acquisition data, and obtain multiple mine bolt monitoring data and mine bolt selection data according to it;

[0144] Obtain the sample mine bolts according to the mine bolt selection data, and respectively obtain the bolt cumulative working duration, the first rock mass stability coefficient, and the first rock mass stability coefficient according to the mine bolt monitoring data corresponding to the sample mine bolts;

[0145] During the process of monitoring the mine bolts, mark the time value corresponding to the current moment as the first periodic monitoring time value. In the time period after the first periodic monitoring value, mark a second periodic monitoring time value, and name the time period between the first periodic monitoring time value and the second periodic monitoring time value as the bolt monitoring period;

[0146] It should be noted here that:

[0147] In this application, the time interval between the first-cycle monitoring time value and the second-cycle monitoring time value involved here is specifically set to fifteen days, that is, the cycle duration corresponding to the bolt monitoring cycle here is fifteen days;

[0148] Analyze the periodic monitoring frequency of the bolts in the sample mine to obtain the bolt monitoring time point data;

[0149] Specifically as follows:

[0150] Obtain the basic periodic monitoring frequency of the bolts, and calculate the actual periodic monitoring frequency of the bolts through the basic periodic monitoring frequency of the bolts, the cumulative working duration of the bolts, the first rock mass stability coefficient, and the first rock mass stability coefficient;

[0151] Calculate the actual periodic monitoring frequency of the bolts. The specific formula is as follows:

[0152] ;

[0153] Among them, Pcs is the actual periodic monitoring frequency of the bolts, Pcj is the basic periodic monitoring frequency of the bolts, Ywx1 is the first rock mass stability coefficient, Ywx2 is the first rock mass stability coefficient, and Lsc is the cumulative working duration of the bolts;

[0154] During the bolt monitoring cycle, mark a number of bolt periodic monitoring points with equal time intervals, and the numerical values corresponding to the bolt periodic monitoring points are equal to the actual periodic monitoring frequency of the bolts;

[0155] It should be noted here that:

[0156] Assume that the actual periodic monitoring frequency of the bolts corresponding to the sample mine is 8, then mark eight bolt periodic monitoring points during the bolt monitoring cycle;

[0157] Name the several bolt periodic monitoring points marked during the bolt monitoring cycle as the first bolt monitoring time point to the mth bolt monitoring time point in chronological order to obtain the bolt monitoring time point data corresponding to the bolts in the sample mine.

[0158] Repeat the process of obtaining the bolt monitoring time point data corresponding to the bolts in the sample mine, and obtain the bolt monitoring time point data corresponding to each bolt in the mine respectively to obtain multiple bolt monitoring time point data;

[0159] Define multiple bolt monitoring time point data and the bolt monitoring cycle as bolt periodic monitoring frequency data;

[0160] The monitoring frequency module obtains the bolt periodic monitoring frequency data and transmits it to the periodic monitoring module and the comprehensive evaluation module;

[0161] The periodic monitoring module performs periodic monitoring on each mine bolt according to the bolt periodic monitoring data to obtain the bolt periodic monitoring data;

[0162] Specifically as follows:

[0163] Obtain the bolt periodic monitoring frequency data, and obtain the bolt monitoring time point data and bolt monitoring period corresponding to each mine bolt according to the bolt periodic monitoring frequency data;

[0164] Obtain the first bolt monitoring time point to the m-th bolt monitoring time point within the bolt monitoring period according to the bolt monitoring time point data corresponding to the sample mine bolt;

[0165] Perform position monitoring on the sample mine bolt to obtain the periodic monitoring data corresponding to the sample mine bolt;

[0166] Specifically as follows:

[0167] Please refer to Figure 2 , obtain the mine cross-sectional view of the area where the sample mine bolt is located to obtain the sample mine cross-sectional view;

[0168] In the sample mine cross-sectional view, mark the left intersection point of the mine arc surface and the mine ground as the first position feature point, mark the right intersection point of the mine arc surface and the mine ground as the second position feature point, mark the connection of the first position feature point and the second position feature point as the first position feature line, and mark the midpoint of the first position feature line as the third position feature point;

[0169] It should be noted here that:

[0170] In this application, the orientations of the mine bolts involved are all parallel to the mine cross-sectional view;

[0171] In the sample mine cross-sectional view, mark the first position feature line as the coordinate x-axis, mark the third position feature point as the coordinate origin, make a coordinate origin, make a line perpendicular to the coordinate x-axis to obtain the coordinate y-axis, and mark the plane rectangular coordinate system composed of the coordinate x-axis, the coordinate y-axis and the coordinate origin as the mine cross-sectional rectangular coordinate system;

[0172] Mark a feature point at the top of the sample mine bolt as the first bolt feature point, draw a line parallel to the sample mine bolt body through the first bolt feature point, mark the intersection point of the parallel line and the tail of the sample mine bolt as the second bolt feature point, and draw a line connecting the first bolt feature point and the second bolt feature point to obtain the bolt marking line;

[0173] It should be noted here that:

[0174] In this application, the bolt marking line involved here is parallel to the sample mine bolt body;

[0175] Monitor the position of the sample mine bolt at the first bolt monitoring time point in the mine profile rectangular coordinate system to obtain the first bolt position monitoring value;

[0176] Specifically as follows:

[0177] Obtain the polar radius length value of the bolt marking line in the mine profile rectangular coordinate system to obtain the bolt polar radius value;

[0178] Obtain the polar angle of the bolt marking line in the mine profile rectangular coordinate system to obtain the bolt polar angle value;

[0179] Respectively obtain the bolt polar radius reference value and the bolt polar angle reference value, and calculate the first bolt position monitoring value through the bolt polar radius value, the bolt polar angle value, the bolt polar radius reference value, and the bolt polar angle reference value;

[0180] It should be noted here that:

[0181] In this application, the bolt polar radius reference value and the bolt polar angle reference value involved here are the bolt polar radius reference value and the bolt polar angle reference value of the sample mine bolt during the installation stage;

[0182] Calculate the first bolt position monitoring value, and the specific formula is as follows:

[0183] ;

[0184] Among them, Wz1 is the first bolt position monitoring value, Jjz is the bolt polar radius value, Jzl is the bolt polar radius reference value, Ljs is the bolt polar angle value, and Ljj is the bolt polar angle reference value.

[0185] Repeat the process of obtaining the first bolt position monitoring value, and monitor the position of the sample mine bolt from the second bolt monitoring time point to the mth bolt monitoring time point to obtain the second bolt position monitoring value to the mth bolt position monitoring value;

[0186] Calculate the bolt position evaluation coefficient through the first bolt position monitoring value to the mth bolt position monitoring value;

[0187] Specifically as follows:

[0188] ;

[0189] Among them, Wpg is the bolt position evaluation coefficient, Wzi is the i-th bolt position monitoring value, and Wz(i - 1) is the (i - 1)-th bolt position monitoring value.

[0190] It should be noted here that:

[0191] In this application, the monitoring value of the position of the i-th bolt involved here can be any one of the monitoring values of the position of the first bolt to the monitoring values of the position of the m-th bolt;

[0192] Perform deformation monitoring on the sample mine bolts at the first bolt monitoring time point in the mine section rectangular coordinate system to obtain the first bolt deformation monitoring value;

[0193] Specifically as follows:

[0194] Mark the sample mine bolts at the first bolt monitoring time point in the mine section rectangular coordinate system and obtain the bolt marking line;

[0195] Please refer to Figure 3 , randomly mark several deformation feature points on the sample mine bolts, and randomly select one deformation feature point from the marked multiple deformation feature points as the sample deformation feature point;

[0196] It should be noted here that:

[0197] Several deformation feature points involved here are all on the edge of one side of the rod body of the sample mine bolt;

[0198] Draw a perpendicular line from the sample feature point to the bolt marking line, mark the intersection point of the perpendicular line and the bolt marking line as the deformation perpendicular intersection point, obtain the distance value between the sample deformation feature point and the deformation perpendicular intersection point to get the deformation feature distance corresponding to the sample deformation feature point, obtain the radius of the sample mine bolt to get the deformation reference distance, calculate the difference between the deformation feature distance and the deformation reference distance, and take the absolute value of the obtained difference to get the bolt deformation distance corresponding to the sample deformation feature point;

[0199] It should be noted here that:

[0200] In this application, the main body of the mine bolt involved is defaulted to be cylindrical;

[0201] Repeat the process of obtaining the bolt deformation distance corresponding to the sample deformation feature point, obtain the bolt deformation distance corresponding to each deformation feature point respectively to get multiple bolt deformation distances, and calculate the average of the obtained multiple bolt deformation distances to get the first bolt deformation monitoring value;

[0202] Repeat the process of obtaining the first bolt deformation monitoring value, perform deformation monitoring on the sample mine bolts at the second bolt monitoring time point to the m-th bolt monitoring time point to obtain the second bolt deformation monitoring value to the m-th bolt deformation monitoring value;

[0203] Calculate the bolt deformation evaluation coefficient from the first bolt deformation monitoring value to the m-th bolt deformation monitoring value;

[0204] The details are as follows:

[0205] ;

[0206] Among them, Xpg is the bolt deformation evaluation coefficient, Xzi is the deformation monitoring value of the i-th bolt, and Xz(i - 1) is the deformation monitoring value of the (i - 1)-th bolt.

[0207] It should be noted here that:

[0208] In this application, the deformation monitoring value of the i-th bolt involved here can be any one of the deformation monitoring values from the first bolt to the m-th bolt;

[0209] Define the bolt position evaluation coefficient and the bolt deformation evaluation coefficient as the periodic monitoring data corresponding to the bolts in the sample mine;

[0210] Repeat the process of obtaining the periodic monitoring data corresponding to the bolts in the sample mine, and obtain the periodic monitoring data corresponding to each bolt in the mine respectively to obtain the bolt periodic monitoring data;

[0211] The periodic monitoring module obtains the bolt periodic monitoring data and transports it to the comprehensive evaluation module;

[0212] The comprehensive evaluation module conducts a comprehensive safety evaluation of each bolt in the mine according to the bolt periodic monitoring data;

[0213] The details are as follows:

[0214] Obtain the bolt periodic monitoring data, and obtain the periodic monitoring data corresponding to each bolt in the mine according to the bolt periodic monitoring data;

[0215] Obtain the bolt position evaluation coefficient and the bolt deformation evaluation coefficient according to the periodic monitoring data;

[0216] Calculate the bolt safety evaluation coefficient from the bolt position evaluation coefficient and the bolt deformation evaluation coefficient;

[0217] Calculate the bolt safety evaluation coefficient, and the specific formula is as follows:

[0218] ;

[0219] Among them, Anp is the bolt safety evaluation coefficient, Wpg is the bolt position evaluation coefficient, and Xpg is the bolt deformation evaluation coefficient;

[0220] Obtain the bolt safety evaluation coefficient threshold, compare the bolt safety evaluation coefficient with the bolt safety evaluation coefficient threshold, and conduct a comprehensive safety evaluation of the bolts in the mine according to the result of the numerical comparison;

[0221] The specific steps are as follows:

[0222] Obtain the threshold value of the bolt position evaluation coefficient and the threshold value of the bolt deformation evaluation coefficient;

[0223] Calculate the bolt safety evaluation coefficient threshold value from the bolt position evaluation coefficient threshold value and the bolt deformation evaluation coefficient threshold value;

[0224] It should be noted here that:

[0225] In this application, the threshold value of the bolt position evaluation coefficient and the threshold value of the bolt deformation evaluation coefficient involved here are both the maximum bolt position evaluation coefficient and the maximum bolt deformation evaluation coefficient corresponding to the bolts in the mine with qualified safety monitoring;

[0226] Calculate the bolt safety evaluation coefficient threshold value, and the specific formula is as follows:

[0227] ;

[0228] Among them, Anpy is the bolt safety evaluation coefficient threshold value, Wpgy is the bolt position evaluation coefficient threshold value, and Xpgy is the bolt deformation evaluation coefficient threshold value;

[0229] If the bolt safety evaluation coefficient is greater than or equal to the bolt safety evaluation coefficient threshold value, it is evaluated that the safety monitoring of the corresponding mine bolt is unqualified;

[0230] If the bolt safety evaluation coefficient is less than the bolt safety evaluation coefficient threshold value, it is evaluated that the safety monitoring of the corresponding mine bolt is qualified.

[0231] In this application, if there are corresponding calculation formulas, the above calculation formulas are all calculated by taking the numerical value without dimension. The weight coefficients, proportional coefficients and other coefficients in the formulas are set to obtain a result value by quantifying each parameter. As long as the size of the weight coefficient and the proportional coefficient does not affect the proportional relationship between the parameters and the result value, it is fine.

[0232] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A mine bolt evaluation system based on monitoring data, characterized in that, Including: Data acquisition module: used to select multiple mine bolts in the target mine, acquire the data of the selected mine bolts, monitor the working environment of each mine bolt, and acquire the monitoring data of the mine bolts to obtain the preliminary collected data of the mine bolts; Monitoring frequency module: used to mark a bolt monitoring cycle, and obtain the monitoring frequency of each mine bolt within the bolt monitoring cycle by analyzing the preliminary collected data of the mine bolts to obtain the bolt cycle monitoring frequency data; Cycle monitoring module: used to perform periodic position monitoring on each mine bolt according to the bolt cycle monitoring data, obtain the bolt position evaluation coefficient, perform periodic deformation monitoring on each mine bolt, obtain the bolt deformation evaluation coefficient, and obtain the bolt cycle monitoring data; The cycle monitoring module obtains the bolt cycle monitoring data as follows: Obtain the bolt cycle monitoring frequency data, and obtain the bolt monitoring time point data and bolt monitoring cycle corresponding to each mine bolt according to the bolt cycle monitoring frequency data; Obtain the first bolt monitoring time point to the mth bolt monitoring time point within the bolt monitoring cycle according to the bolt monitoring time point data corresponding to the sample mine bolt; Perform position monitoring on the sample mine bolt to obtain the cycle monitoring data corresponding to the sample mine bolt; Specifically as follows: Obtain the mine cross-section diagram of the area where the sample mine bolt is located to obtain the sample mine cross-section diagram; In the sample mine cross-section diagram, mark the intersection point of the mine arc surface and one end of the mine ground as the first position feature point, mark the intersection point of the mine arc surface and the other end of the mine ground as the second position feature point, mark the connection of the first position feature point and the second position feature point as the first position feature line, and mark the midpoint of the first position feature line as the third position feature point; In the sample mine cross-section diagram, mark the first position feature line as the coordinate x-axis, mark the third position feature point as the coordinate origin, make a straight line perpendicular to the coordinate x-axis to obtain the coordinate y-axis, and mark the plane rectangular coordinate system composed of the coordinate x-axis, coordinate y-axis and coordinate origin as the mine cross-section rectangular coordinate system; Mark a first bolt feature point at the top of the sample mine bolt, draw a parallel line to the sample mine bolt body through the first bolt feature point, mark the intersection point of the parallel line and the tail of the sample mine bolt as the second bolt feature point, and draw a connection line between the first bolt feature point and the second bolt feature point to obtain the bolt marking line; Perform position monitoring on the sample mine bolt at the first bolt monitoring time point in the mine cross-section rectangular coordinate system to obtain the first bolt position monitoring value; Perform position monitoring on the sample mine bolt from the second bolt monitoring time point to the mth bolt monitoring time point to obtain the second bolt position monitoring value to the mth bolt position monitoring value; Calculate the bolt position evaluation coefficient from the first bolt position monitoring value to the mth bolt position monitoring value; Specifically as follows: ； Among them, Wpg is the bolt position evaluation coefficient, Wzi is the i-th bolt position monitoring value, and Wz(i - 1) is the (i - 1)-th bolt position monitoring value; Deformational monitoring is carried out on the sample mine bolt at the first bolt monitoring time point in the mine profile rectangular coordinate system to obtain the first bolt deformation monitoring value; Deformational monitoring is carried out on the sample mine bolts from the second bolt monitoring time point to the m-th bolt monitoring time point to obtain the second bolt deformation monitoring value to the m-th bolt deformation monitoring value; The first bolt deformation monitoring value to the m-th bolt deformation monitoring value are calculated to obtain the bolt deformation evaluation coefficient; Specifically as follows: ； Among them, Xpg is the bolt deformation evaluation coefficient, Xzi is the deformation monitoring value of the i-th bolt, and Xz(i - 1) is the deformation monitoring value of the (i - 1)-th bolt; The bolt position evaluation coefficient and the bolt deformation evaluation coefficient are defined as the periodic monitoring data corresponding to the sample mine bolts; Repeat the process of obtaining the periodic monitoring data corresponding to the sample mine bolts, and obtain the periodic monitoring data of each mine bolt respectively to obtain the bolt periodic monitoring data; The periodic monitoring module obtains the first bolt position monitoring value, specifically as follows: Obtain the polar radius length value of the bolt marking line in the mine profile rectangular coordinate system to obtain the bolt polar radius value; Obtain the polar angle of the bolt marking line in the mine profile rectangular coordinate system to obtain the bolt polar angle value; Respectively obtain the bolt polar radius reference value and the bolt polar angle reference value, and calculate the first bolt position monitoring value through the bolt polar radius value, the bolt polar angle value, the bolt polar radius reference value, and the bolt polar angle reference value; Calculate the first bolt position monitoring value, and the specific formula is as follows: ； Among them, Wz1 is the first bolt position monitoring value, Jjz is the bolt polar radius value, Jzl is the bolt polar radius reference value, Ljs is the bolt polar angle value, and Ljj is the bolt polar angle reference value; The periodic monitoring module obtains the first bolt deformation monitoring value, specifically as follows: Mark the sample mine bolt at the first bolt monitoring time point in the mine profile rectangular coordinate system and obtain the bolt marking line; Randomly mark several deformation characteristic points on the sample mine bolt, and randomly select one deformation characteristic point from the marked multiple deformation characteristic points as the sample deformation characteristic point; Draw a perpendicular line from the sample characteristic point to the bolt marking line, mark the intersection point of the perpendicular line and the bolt marking line as the deformation perpendicular intersection point, obtain the distance value between the sample deformation characteristic point and the deformation perpendicular intersection point to obtain the deformation characteristic distance corresponding to the sample deformation characteristic point, obtain the radius of the sample mine bolt to obtain the deformation reference distance, calculate the difference between the deformation characteristic distance and the deformation reference distance, and take the absolute value of the obtained difference to obtain the bolt deformation distance corresponding to the sample deformation characteristic point; Respectively obtain the bolt deformation distances corresponding to each deformation characteristic point to obtain multiple bolt deformation distances, and calculate the average of the obtained multiple bolt deformation distances to obtain the first bolt deformation monitoring value; Comprehensive evaluation module: used to obtain the bolt safety evaluation coefficient of each mine bolt according to the bolt periodic monitoring data, obtain the bolt safety evaluation coefficient threshold and compare the bolt safety evaluation coefficient numerically, and conduct a comprehensive safety evaluation according to the numerical comparison result.

2. The mine bolt evaluation system based on monitoring data according to claim 1, wherein The data acquisition module acquires the preliminary collected data of the mine bolt as follows: Acquire the mine bolts installed in the target mine to obtain multiple mine bolts, and arbitrarily select one of the multiple obtained mine bolts as the sample mine bolt to obtain the mine bolt selection data; Obtain the installation time value of the sample mine bolt to get the first characteristic time value, obtain the time value corresponding to the current moment to get the second characteristic time value, and calculate the time difference between the first characteristic time value and the second characteristic time value to obtain the cumulative working duration of the bolt; In the target mine, mark the area where the sample mine bolt contacts the rock mass to obtain the bolt-rock mass contact area; In the bolt-rock mass contact area, mark the area where the bolt penetrates into the rock mass as the first bolt-rock contact area, and mark the area where the bolt does not penetrate into the rock mass as the second bolt-rock contact area; Monitor the stability of the first bolt-rock contact area to obtain the first rock mass stability coefficient; In the second bolt-rock contact area, arbitrarily select several rock mass characteristic points, obtain the Mohs hardness values of each rock mass characteristic point respectively to get multiple characteristic point hardness values, and calculate the average of the obtained multiple characteristic point hardness values to obtain the second rock mass stability coefficient; Define the cumulative working duration of the bolt, the first rock mass stability coefficient, and the second rock mass stability coefficient corresponding to the sample mine bolt as the mine bolt monitoring data; Acquire the mine bolt monitoring data corresponding to each mine bolt respectively to obtain multiple mine bolt monitoring data; Define the multiple mine bolt monitoring data and the mine bolt selection data as the preliminary collected data of the mine bolt.

3. The mine bolt evaluation system based on monitoring data according to claim 2, wherein The data acquisition module acquires the first rock mass stability coefficient as follows: Acquire the surface image of the first bolt-rock contact area to obtain the first contact area surface image; Acquire the historical image data of the sample mine bolt, and obtain the surface image of the first bolt-rock contact area at the installation moment of the sample mine bolt through the historical image data to get the second contact area surface image; In the first contact area surface image, mark the area where the mine bolt is located as the first image bolt area, and mark the area where the rock mass is located as the first image rock mass area; In the first contact area surface image, set multiple square filling blocks with the same unit area, use the square filling blocks to fill the first image bolt area until the square filling blocks cover the first image bolt area, and count the number of square filling blocks in the first image bolt area to obtain the first bolt filling quantity value, use the square filling blocks to fill the first image rock mass area until the square filling blocks cover the first image rock mass area, and count the number of square filling blocks in the first image rock mass area to obtain the first rock mass filling quantity value; In the second contact area surface image, mark the area where the mine bolt is located as the second image bolt area, and mark the area where the supporting rock mass is located as the second image rock mass area; In the surface image of the second contact area, a plurality of square filling blocks with the same unit area are set. The second image bolt area is covered with the square filling blocks, and the number of square filling blocks required to cover the second image bolt area is counted to obtain the second bolt filling quantity value. The second image rock mass area is covered with the square filling blocks, and the number of square filling blocks required to cover the second image rock mass area is counted to obtain the second rock mass filling quantity value; The first bolt filling quantity value, the second bolt filling quantity value, the first rock mass filling quantity value, and the second rock mass filling quantity value are calculated to obtain the second rock mass stability coefficient; The second rock mass stability coefficient is calculated. The specific formula is as follows: ； Among them, Ywx2 is the second rock mass stability coefficient, Mts1 is the first bolt filling quantity value, Mts2 is the second bolt filling quantity value, Yts1 is the first rock mass filling quantity value, and Yts2 is the second rock mass filling quantity value.

4. The mine bolt evaluation system based on monitoring data according to claim 1, characterized in that The monitoring frequency module obtains the bolt periodic monitoring frequency data as follows: Obtain the preliminary mine bolt collection data, and obtain multiple mine bolt monitoring data and mine bolt selection data according to the obtained data; Obtain the sample mine bolts according to the mine bolt selection data, and obtain the bolt cumulative working hours, the first rock mass stability coefficient, and the second rock mass stability coefficient according to the mine bolt monitoring data respectively; During the process of monitoring the mine bolts, mark the time value corresponding to the current moment as the first cycle monitoring time value. In the time period after the first cycle monitoring value, mark a second cycle monitoring time value. Name the time period between the first cycle monitoring time value and the second cycle monitoring time value as the bolt monitoring cycle; Conduct a periodic monitoring frequency analysis on the sample mine bolts to obtain the bolt monitoring time point data; Obtain the bolt monitoring time point data corresponding to each mine bolt respectively to obtain multiple bolt monitoring time point data; Define the multiple bolt monitoring time point data and the bolt monitoring cycle as the bolt periodic monitoring frequency data.

5. The mine bolt evaluation system based on monitoring data according to claim 4, characterized in that, The monitoring frequency module obtains the bolt monitoring time point data as follows: Obtain the bolt periodic basic monitoring frequency, and calculate the bolt periodic actual monitoring frequency by calculating the bolt periodic basic monitoring frequency, the bolt cumulative working hours, the first rock mass stability coefficient, and the second rock mass stability coefficient; Calculate the bolt periodic actual monitoring frequency. The specific formula is as follows: ； Among them, Pcs is the bolt periodic actual monitoring frequency, Pcj is the bolt periodic basic monitoring frequency, Ywx1 is the first rock mass stability coefficient, Ywx2 is the second rock mass stability coefficient, and Lsc is the bolt cumulative working hours; During the bolt monitoring cycle, mark several bolt periodic monitoring points with equal time intervals, and the numerical values corresponding to the bolt periodic monitoring points are equal to the bolt periodic actual monitoring frequency; Name the several bolt periodic monitoring points marked during the bolt monitoring cycle as the first bolt monitoring time point to the mth bolt monitoring time point in chronological order to obtain the bolt monitoring time point data.

6. The mine bolt evaluation system based on monitoring data according to claim 1, characterized in that, The comprehensive evaluation module obtains the bolt safety evaluation coefficient as follows: Obtain the periodic monitoring data of the bolt, and obtain the periodic monitoring data corresponding to each mine bolt according to the periodic monitoring data of the bolt; Obtain the bolt position evaluation coefficient and the bolt deformation evaluation coefficient according to the periodic monitoring data; Calculate the bolt safety evaluation coefficient from the bolt position evaluation coefficient and the bolt deformation evaluation coefficient; Calculate the bolt safety evaluation coefficient, and the specific formula is as follows: ； Among them, Anp is the bolt safety evaluation coefficient, Wpg is the bolt position evaluation coefficient, and Xpg is the bolt deformation evaluation coefficient; Obtain the bolt safety evaluation coefficient threshold, compare the bolt safety evaluation coefficient with the bolt safety evaluation coefficient threshold numerically, and conduct a comprehensive safety assessment of the mine bolts according to the numerical comparison result.

7. The mine bolt evaluation system based on monitoring data according to claim 6, wherein The comprehensive evaluation module conducts a comprehensive safety assessment of the mine bolts, specifically as follows: Obtain the bolt position evaluation coefficient threshold and the bolt deformation evaluation coefficient threshold; Calculate the bolt safety evaluation coefficient threshold from the bolt position evaluation coefficient threshold and the bolt deformation evaluation coefficient threshold; Calculate the bolt safety evaluation coefficient threshold, and the specific formula is as follows: ； Among them, Anpy is the bolt safety evaluation coefficient threshold, Wpgy is the bolt position evaluation coefficient threshold, and Xpgy is the bolt deformation evaluation coefficient threshold; If the bolt safety evaluation coefficient is greater than or equal to the bolt safety evaluation coefficient threshold, it is evaluated that the safety monitoring of the corresponding mine bolt is unqualified; If the bolt safety evaluation coefficient is less than the bolt safety evaluation coefficient threshold, it is evaluated that the safety monitoring of the corresponding mine bolt is qualified.

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