Roadway roof anchoring support impact resistance analysis system

Abstract

The application discloses a kind of roadway roof anchoring support impact resistance analysis system, it is related to roadway supporting technical field.The present application includes analysis unit, image module, database, hammering device, laser module and positioning module, the output of image module is connected with the input of analysis unit, the port of database is connected with the port of analysis unit to establish data connection, the output of laser module and positioning module is all connected with the input of analysis unit, the port of analysis unit is connected with the port of hammering device to establish data connection, analysis unit executes simulation impact program and sends n hammering instructions to hammering device, the hammer head of hammering device is hammered to the side of anchoring exposed part, the impact resistance of floor anchoring can be quantified into impact resistance index by simulation impact program and stress analysis program, by calculating the similarity index of each anchoring and impact resistance reference, the process of detection and analysis can be accelerated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of roadway support, in particular to a roadway roof anchoring support impact resistance analysis system. BACKGROUND

[0002] In the mining, the stability of the roadway involves the safety of personnel, so the floor of the roadway needs to have a certain impact resistance, and the anchoring technology can effectively connect the floor rock stratum and the deep stable rock mass by deepening the anchor rod or anchor cable into the rock mass of the roadway floor, forming a whole to jointly bear the pressure of the overlying strata, thereby improving the stability of the roadway floor. The current roadway support method is to realize the impact resistance of the floor by installing anchoring support in the roadway floor.

[0003] The traditional anchoring support method cannot detect the support impact resistance of each anchor in response to complex geological conditions and high stress environment. The operator installing the anchor in the floor cannot obtain the feedback of the impact resistance after the installation of the anchor, which leads to the inability to establish an effective feedback mechanism between the installation end and the actual application end of the floor anchor. After the installation of the floor anchor is completed, testing each anchor installation point will increase the workload of the construction and delay the progress of the project. Therefore, how to quickly analyze the support impact resistance of each anchor is a technical problem to be solved by those skilled in the art. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a roadway roof anchoring support impact resistance analysis system, which solves the problems raised in the background art.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme: a roadway roof anchoring support impact resistance analysis system, comprising an analysis unit, an image module, a database, a hammering device, a laser module and a positioning module, the output end of the image module is connected with the input end of the analysis unit, the port of the database is connected with the port of the analysis unit to establish data connection, the output end of the laser module and the positioning module is connected with the input end of the analysis unit, the port of the analysis unit is connected with the port of the hammering device to establish data connection.

[0006] The analysis unit executes a simulation impact program to send n hammering instructions to the hammering device, the hammer head of the hammering device hammers the side of the exposed part of the anchoring, the hammering device obtains the running information when the hammer head hammers and transmits it to the analysis unit, the analysis unit calculates the impact energy E of the first hammering of the hammer head and the final speed v2 of the second to n hammering of the hammer head, the anchoring is an inlaid anchor rod in the roadway roof, the laser module measures the offset distance Δx of the anchoring and transmits it to the analysis unit, the positioning module is fixedly installed on the side of the anchoring support point, the positioning module obtains the support point coordinates Q of the anchoring and transmits them to the analysis unit, the database is used to store the analysis data of the analysis unit, the image information of the image module, the hammering area A of the hammer head of the hammering device, the mass m of the hammer head of the hammering device, the elastic modulus Em of the anchoring, the support point coordinates Q and the Poisson's ratio u of the anchoring, wherein the hammering area A of the hammer head of the hammering device, the mass m of the hammer head of the hammering device, the elastic modulus Em of the anchoring and the Poisson's ratio u of the anchoring are all measured in advance and input into the database for storage;

[0007] The analysis unit executes an angle analysis program to obtain the offset angle θx of the anchoring, executes a stress analysis program to obtain the support impact resistance index ψ of the anchoring, and saves the support impact resistance index ψ of the anchoring and the corresponding support point coordinates Q to the database, the analysis unit executes a classification program to classify all the anchorings in the roadway roof into three categories, namely, strong impact resistance, general impact resistance and weak impact resistance, and marks them respectively;

[0008] When the simulation impact program is executed, the hammer head of the hammering device hammers for the first time, the hammering device transmits the running information to the analysis unit, the laser module transmits the offset distance Δx of the anchoring to the analysis unit, and the analysis unit calculates the impact energy E of the hammer head of the hammering device according to formula one Wherein v(t) is the speed changing with the hammering time t, F(t) is the impact force changing with the hammering time t, and k is the deformation coefficient of the anchoring surface;

[0009] The analysis unit calculates the impact energy En of the second to n hammering of the hammer head of the hammering device according to formula two Wherein n is the number of hammering of the hammer head, the specific value of n is randomly generated by the analysis unit, r is a random number randomly generated by the analysis unit within 1 to 5, the analysis unit assigns the impact energy En to the impact energy E and inputs it into formula one, the values of the initial speed v1 of the hammer head, the hammering time t, the hammering area A of the hammer head of the hammering device, the mass m of the hammer head of the hammering device, the offset distance Δx, the elastic modulus Em of the anchoring and the Poisson's ratio u of the anchoring remain unchanged in formula one, and the analysis unit reversely deduces and calculates the final speed v2 of the second to n hammering of the hammer head of the hammering device;

[0010] The analysis unit transmits the last speed v2 of the hammer head to the n-th time to the hammering device, and the hammering device hammers the side of the exposed part of the anchor according to the last speed v2 of the hammer head until the hammer head hammers to the n-th time, and the simulation impact program stops;

[0011] The number of hammering of the hammer head is n, when the hammer head of the hammering device hammers the side of the exposed part of the anchor for the third time to the (n-1)-th time, the analysis unit executes the stress analysis program, and the analysis unit divides the hammering time t into i time nodes, and the laser module obtains the offset distance Δx of the side of the exposed part of the anchor at each time node and transmits it to the analysis unit, and the analysis unit establishes a curve table with length as the vertical axis and time as the horizontal axis, and the analysis unit inputs all the received offset distances Δx into the curve table to obtain the offset distance curve of the side of the exposed part of the anchor when it is hammered;

[0012] The analysis unit calculates the specific value of the time node division number i by formula three The initial value of i is 10, and the time node division number i needs to be recalculated by formula three after the hammer head completes hammering each time;

[0013] The analysis unit divides the offset distance curve into s equal intervals u, and the analysis unit marks the starting point coordinates of each equal interval u as (ax, as), and the analysis unit presets a sliding window of 3u, and the sliding direction of the sliding window is from left to right, and the analysis unit calculates the curve slope η in the sliding window according to formula four (ax', as') is the starting point coordinates of the first equal interval u in the sliding window, and (ax", as") is the starting point coordinates of the last equal interval u in the sliding window, and the analysis unit calculates the curve slope η once, and the sliding window slides one equal interval u to the right, until the sliding window moves to the end of the offset distance curve;

[0014] The analysis unit counts the number of times when the curve slope η is less than 0 and marks it as b1, and the analysis unit counts the number of times when the slope η is greater than or equal to 0 and marks it as b2, and the analysis unit calculates the support impact resistance index ψ of the anchor according to formula five When the support impact resistance index ψ of the anchor is greater than 50, the analysis unit marks the corresponding anchor as an impact resistance reference, and the stress analysis program stops, and when the support impact resistance index ψ of the anchor is less than or equal to 50, the analysis unit randomly selects another anchor to repeat the stress analysis program until an impact resistance index ψ greater than 50 is obtained;

[0015] After the stress analysis program is executed once, the operator uses a hammering device to hammer the anchorings that have not been hammered once, and each time the hammer head hammers, the laser module measures the offset distance Δx of the anchoring and transmits it to the analysis unit, the image module obtains the image information of the roadway roof anchoring and transmits it to the analysis unit, and the analysis unit executes the classification program. Through the simulation impact program and the stress analysis program, the impact resistance of the floor anchoring can be quantified into an impact resistance index, and the impact resistance of the floor anchoring can be directly judged.

[0016] When the classification program is executed, the analysis unit marks the offset distance Δx of the anchoring that is hammered once as Δfr, and the analysis unit calculates the first similarity σ1 of the anchoring that is hammered once and the anchoring that is hammered n times according to formula six

[0017] The operator manually marks the color cmyk four-color value C of the impact resistance reference in the image information cmyk and inputs it into the analysis unit, the analysis unit presets a compatible range of ±5%, and compares each pixel in the image information corresponding to the anchoring that is hammered once with the four-color value C cmyk The analysis unit marks the four-color value C cmyk of the pixel that is within the compatible range of the four-color value C cmyk as an anchoring molecule, and the analysis unit generates a horizontal cutting line at the top and bottom of the anchoring molecule in each image information and generates a vertical cutting line at the left and right of the anchoring molecule in each image information. The two horizontal cutting lines and the two vertical cutting lines intersect to form a cutting rectangle, which is also applicable to the image information of the anchoring that is hammered n times. The analysis unit forms a cutting rectangle using the top horizontal cutting line, the bottom horizontal cutting line, the left vertical cutting line, and the right vertical cutting line for the pixels with the four-color value C cmyk of the anchoring color cmyk in the image information of the anchoring that is hammered n times, and the analysis unit marks the pixels with the four-color value C cmyk in the image information of the anchoring that is hammered n times as anchoring references.

[0018] In the cutting rectangle, the analysis unit sets the coordinates of the top, bottom, left, and right anchoring references as (W1, Y1), (W2, Y2), (W3, Y3), and (W4, Y5), respectively, and sets the coordinates of the anchoring molecules in each image information that is hammered n times as (w1, y1), (w2, y2), (w3, y3), and (w4, y5), respectively. The analysis unit calculates the second similarity σ2 of the anchoring that is hammered once and the anchoring that is hammered n times according to formula seven ​The analysis unit calculates the second similarity σ2 of the anchor in the image information corresponding to each hammering once to the anchor in the image information corresponding to hammering n times, multiplies the first similarity σ1 and the second similarity σ2 to obtain the similarity index Δσ, and stops until all the image information corresponding to each hammering once is calculated.

[0019] The analysis unit arranges the similarity indexes Δσ corresponding to the image information of each anchor hammering once in descending order to obtain a similarity sequence, marks the anchors corresponding to the first 17% of the similarity indexes Δσ in the similarity sequence as impact-resistant strong, transmits the impact-resistant strong anchors and the support point coordinates Q to the database for storage, marks the anchors corresponding to the first 18% to 51% of the similarity indexes Δσ in the similarity sequence as impact-resistant general, transmits the impact-resistant general anchors and the support point coordinates Q to the database for storage, and marks the anchors corresponding to the remaining similarity indexes Δσ in the similarity sequence as impact-resistant weak, transmits the impact-resistant weak anchors and the support point coordinates Q to the database for storage. The support impact resistance of the roadway roof anchor and the corresponding support point coordinates Q can be obtained by reading the database, the similarity index of each anchor and the impact-resistant reference can be obtained by calculating the first similarity and the second similarity, and thus the impact resistance of each anchor can be quickly judged through the image information, and the detection and analysis process can be accelerated.

[0020] The analysis data includes the impact energy E of the first hammering of the hammer head, the impact energy En of the second to n times of hammering of the hammer head, the deformation coefficient k of the anchor surface, the speed v(t) changing with the hammering time t, the impact force F(t) changing with the hammering time t, the offset angle θx, the number of hammerings n, and the random number r. The operation information includes the initial speed v1 of the hammer head of the hammering device, the final speed v2 of the hammer head of the hammering device, and the hammering time t.

[0021] Further, when the hammer head of the hammering device hammers the anchor exposed part side for the second time and the n times, the analysis unit starts to execute an angle analysis program, the laser module equally divides five ranging points on the anchor exposed part side, the equal division distance is d, and the equal division distance d and the offset distance Δx of the five ranging points are obtained when the hammer head hammers the anchor and are transmitted to the analysis unit. The analysis unit marks the received offset distances Δx as x1, x2, x3, x4, and x5, respectively.

[0022] The analysis unit calculates the first offset angle θ1 of the anchor when hammered for the second time and the last offset angle θ2 when hammered for the n times according to formula eight The analysis unit calculates the first offset angle θ1 of the anchor when hammered for the second time and the last offset angle θ2 when hammered for the n times according to formula eight

[0023] The analysis unit obtains the offset angle θx by subtracting the initial offset angle θ1 from the last offset angle θ2.

[0024] Further, the number s of the equal interval u is determined by the number n of hammering of the hammer head and the curve slope η, and the analysis unit obtains the number s of the equal interval u according to formula nine The number s of the equal interval u is calculated.

[0025] The present application has the following advantages:

[0026] 1. By simulating the impact procedure and stress analysis procedure, the impact resistance of the floor anchoring can be quantified into an impact resistance index, and the impact resistance of the floor anchoring can be directly judged.

[0027] 2. The similarity index of each anchoring and the impact resistance reference is obtained by calculating the first similarity and the second similarity, so that the impact resistance of each anchoring can be quickly judged through the image information, and the detection and analysis process can be accelerated.

[0028] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0030] Figure 1 The present application is a kind of roadway roof anchoring support impact resistance analysis system block diagram. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] Please refer to Figure 1The application provides a technical scheme: a roadway roof anchoring support impact resistance analysis system, which comprises an analysis unit, an image module, a database, a hammering device, a laser module and a positioning module, the output end of the image module is connected with the input end of the analysis unit, the port of the database is connected with the port of the analysis unit in a data connection mode, the output ends of the laser module and the positioning module are connected with the input end of the analysis unit, and the port of the analysis unit is connected with the port of the hammering device in a data connection mode.

[0033] The analysis unit sends n times of hammering instructions to the hammering device in a simulation impact program, the hammer head of the hammering device hammers the side surface of the exposed part of the anchoring, the hammering device transmits the running information of the hammer head during hammering to the analysis unit, the analysis unit calculates the impact energy E of the first hammering of the hammer head and the final speed v2 of the hammer head from the second time to the n time, the anchoring is an inlaid anchor rod in the roadway roof, the laser module measures the offset distance Δx of the anchoring and transmits the offset distance Δx to the analysis unit, the positioning module is fixed on the side surface of the anchoring support point, the positioning module obtains the support point coordinates Q of the anchoring and transmits the support point coordinates Q to the analysis unit, and the database is used for storing the analysis data of the analysis unit, the image information of the image module, the hammering area A of the hammer head of the hammering device, the mass m of the hammer head of the hammering device, the elastic modulus Em of the anchoring, the support point coordinates Q and the Poisson's ratio u of the anchoring, wherein the hammering area A of the hammer head of the hammering device, the mass m of the hammer head of the hammering device, the elastic modulus Em of the anchoring and the Poisson's ratio u of the anchoring are all measured in advance and input into the database for storage.

[0034] The analysis unit obtains the offset angle θx of the anchoring through an angle analysis program, obtains the support impact resistance index ψ of the anchoring through a stress analysis program, saves the support impact resistance index ψ of the anchoring and the corresponding support point coordinates Q to the database, and classifies all the anchoring of the roadway roof through a classification program and marks them as three categories of strong impact resistance, general impact resistance and weak impact resistance respectively.

[0035] When the simulation impact program is executed, the hammer head of the hammering device hammers for the first time, the hammering device transmits the running information to the analysis unit, the laser module transmits the offset distance Δx of the anchoring to the analysis unit, and the analysis unit calculates the impact energy E of the hammer head of the hammering device according to formula one Wherein v(t) is the speed changing with the hammering time t, F(t) is the impact force changing with the hammering time t, and k is the deformation coefficient of the anchoring surface.

[0036] The analysis unit calculates the offset angle θx of the anchoring according to formula two The impact energy En of the second to n times of hammering of the hammer head of the hammering device is simulated, where n is the number of hammering of the hammer head, the specific value of n is randomly generated by the analysis unit, r is a random number randomly generated by the analysis unit within 1 to 5, the impact energy En is assigned to the impact energy E by the analysis unit and input into Formula One, the values of the initial speed v1 of the hammer head, the hammering time t, the striking area A of the hammer head of the hammering device, the mass m of the hammer head of the hammering device, the offset distance Δx, the elastic modulus Em of the anchoring, and the Poisson's ratio u of the anchoring in Formula One remain unchanged, and the analysis unit reversely deduces and calculates the final speed v2 of the hammer head of the second to n times of hammering of the hammer head of the hammering device;

[0037] The analysis unit transmits the final speed v2 of the hammer head of the second to n times to the hammering device, and the hammering device hammers the side surface of the exposed part of the anchoring according to the final speed v2 of the hammer head until the n times of hammering of the hammer head stops the simulation impact program;

[0038] When the hammer head of the hammering device hammers the side surface of the exposed part of the anchoring for the third to n-1 times, the analysis unit executes the stress analysis program, and the analysis unit pre-divides the time node by the number i every time the hammer head hammers, the analysis unit transmits the time node to the laser module, the laser module divides the hammering time t into i time nodes, the laser module obtains the offset distance Δx of the side surface of the exposed part of the anchoring once at each time node and transmits it to the analysis unit, the analysis unit establishes a curve table with length as the vertical axis and time as the horizontal axis, and the analysis unit inputs all the received offset distances Δx into the curve table in turn to obtain the offset distance curve of the side surface of the exposed part of the anchoring when it is hammered;

[0039] The analysis unit obtains the specific value of the time node i by Formula Three The initial value of i is 10, and the time node i needs to be recalculated by Formula Three after the hammer head completes hammering each time;

[0040] The analysis unit divides the offset distance curve into s equal intervals u, the analysis unit marks the starting point coordinates of each equal interval u as (ax, as), the analysis unit pre-sets a sliding window of 3u, the sliding direction of the sliding window is from left to right, and the analysis unit calculates the curve slope η in the sliding window according to Formula Four (ax', as') is the starting point coordinates of the first equal interval u in the sliding window, and (ax", as") is the starting point coordinates of the last equal interval u in the sliding window, the analysis unit calculates the curve slope η once every time, and the sliding window slides one equal interval u to the right every time until the sliding window moves to the end of the offset distance curve;

[0041] The analysis unit counts the number of times when the curve slope η < 0 and marks it as b1, the analysis unit counts the number of times when the slope η ≥ 0 and marks it as b2, and the analysis unit calculates the offset distance Δx of the side surface of the exposed part of the anchoring according to Formula Five Calculate the support impact resistance index ψ of the anchorage. When the support impact resistance index ψ of the anchorage is greater than 50, the analysis unit marks the corresponding anchorage as the impact resistance reference and the stress analysis program terminates. When the support impact resistance index ψ of the anchorage is less than or equal to 50, the analysis unit randomly selects another anchorage and repeats the stress analysis program until an impact resistance index ψ greater than 50 is obtained.

[0042] After the stress analysis program is executed once, the operator uses the hammering device to hammer the unhammered anchors one by one. Each time the hammer head is hammered, the laser module measures the offset distance Δx of the anchor and transmits it to the analysis unit. The image module acquires the image information of the roadway roof anchors and transmits it to the analysis unit. The analysis unit executes the classification program.

[0043] During the classification process, the analysis unit marks the anchorage offset distance Δx for a single hammer blow as Δfr, and the analysis unit then applies formula six. Calculate the first similarity σ1 between the anchorage after only one hammer blow and the anchorage after n hammer blows;

[0044] Operators manually mark the color (CMYK) of the impact-resistant reference object in the image information. cmyk The data is then input into the analysis unit, which has a preset compatibility range of ±5%. The analysis unit compares each pixel in the image information corresponding to one hammer strike with the four color values ​​C. cmyk In comparison, the analysis unit places the value in the four-color value C. cmyk The four-color value C within the compatibility range cmyk Pixels are labeled as anchor molecules. The analysis unit generates horizontal clipping lines at the top and bottom of the anchor molecules in each image, and vertical clipping lines at the left and right sides of the anchor molecules in each image. The two horizontal clipping lines and the two vertical clipping lines intersect and close to form a clipping rectangle. The clipping rectangle is also applicable to the image information of anchors that have been hammered n times. The analysis unit extracts the CMYK four-color values ​​of the anchor color from the image information of anchors that have been hammered n times. cmyk The pixels are also cropped using the top horizontal crop line, bottom horizontal crop line, leftmost vertical crop line, and rightmost vertical crop line to form a crop rectangle. The analysis unit will analyze the four color values ​​C from the anchoring image information after n hammer blows. cmyk The pixel markers are used as anchor references. The cropping rectangle is used to align all the anchors in the image information according to a standard, which makes it easier to calculate the tilt index of each anchor later.

[0045] In the cutting rectangle, the analysis unit sets the coordinates of the topmost, bottommost, leftmost and rightmost anchor references as (W1, Y1), (W2, Y2), (W3, Y3) and (W4, Y5) in turn, and sets the coordinates of the anchor molecules in the image information of each hammering n times as (w1, y1), (w2, y2), (w3, y3) and (w4, y5) in turn, and the analysis unit calculates the second similarity σ2 between the anchor molecules in the image information corresponding to each anchor hammered once and the anchor references in the image information corresponding to the anchor hammered n times according to formula seven The analysis unit calculates the second similarity σ2 between the anchor molecules in the image information corresponding to each anchor hammered once and the anchor references in the image information corresponding to the anchor hammered n times according to formula seven

[0046] The analysis unit arranges the similarity indexes Δσ corresponding to the image information of each anchor hammered once in descending order to obtain a similarity sequence, the analysis unit marks the anchors corresponding to the similarity indexes Δσ in the top 17% of the similarity sequence as impact-resistant strong, and transmits the impact-resistant strong anchors and support point coordinates Q to the database for storage, the analysis unit marks the anchors corresponding to the similarity indexes Δσ in the top 18% to 51% of the similarity sequence as impact-resistant general, and transmits the impact-resistant general anchors and support point coordinates Q to the database for storage, the analysis unit marks the anchors corresponding to the remaining similarity indexes Δσ in the similarity sequence as impact-resistant weak, and transmits the impact-resistant weak anchors and support point coordinates Q to the database for storage, and the operator can obtain the support impact resistance of the roadway roof anchor and the corresponding support point coordinates Q by reading the database;

[0047] The analysis data includes the impact energy E of the first hammering of the hammer head, the impact energy En of the second to n times hammering of the hammer head, the deformation coefficient k of the anchor surface, the speed v(t) changing with the hammering time t, the impact force F(t) changing with the hammering time t, the deflection angle θx, the number of hammerings n and the random number r, and the operation information includes the initial speed v1 of the hammer head of the hammering device, the final speed v2 of the hammer head of the hammering device and the hammering time t.

[0048] Wherein, when the hammer head of the hammering device hammers the anchor exposed part side for the second and n times, the analysis unit starts to execute the angle analysis program, the laser module equally divides the anchor exposed part side into five ranging points, and the equal division distance is d, the equal division distance d and the deflection distance Δx of the five ranging points are obtained when the hammer head hammers the anchor, and are transmitted to the analysis unit, and the analysis unit marks the received deflection distances Δx as x1, x2, x3, x4 and x5 respectively;

[0049] The analysis unit calculates the deflection angle θx according to formula eight The initial offset angle θ1 of the anchor at the second hammering and the final offset angle θ2 at the n-th hammering are calculated respectively, and formula eight is a general formula, and the initial offset angle θ1 and the final offset angle θ2 are both obtained by calculation of formula eight;

[0050] The analysis unit obtains the offset angle θx by subtracting the initial offset angle θ1 from the final offset angle θ2.

[0051] Wherein, the number s of the equal interval u is determined by the number n of the hammering of the hammer head and the curve slope η, and the analysis unit obtains the number s of the equal interval u according to formula nine The number s of the equal interval u is calculated.

[0052] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A system for analyzing the impact resistance of roadway roof anchorage support, characterized in that: It includes an analysis unit, an image module, a database, a hammer impact device, a laser module, and a positioning module. The output end of the image module is connected to the input end of the analysis unit, the port of the database is connected to the port of the analysis unit, the output ends of the laser module and the positioning module are both connected to the input end of the analysis unit, and the port of the analysis unit is connected to the port of the hammer impact device. The analysis unit executes a simulated impact program and sends n hammering commands to the hammering device. The hammer head of the hammering device hammers the exposed side of the anchor. The hammering device acquires the running information of the hammer head during the hammering and transmits it to the analysis unit. The impact energy E of the first hammering and the final velocity v2 of the hammer head from the second to the nth hammering are calculated. The laser module measures the offset distance Δx of the anchor and transmits it to the analysis unit. The positioning module acquires the coordinates Q of the anchor support point and transmits them to the analysis unit. The analysis unit executes an angle analysis program to obtain the anchorage offset angle θx, and executes a stress analysis program to obtain the anchorage support impact resistance index ψ. The analysis unit saves the anchorage support impact resistance index ψ and the corresponding support point coordinates Q to the database. The analysis unit executes a classification program to classify all anchorages on the roadway roof into three categories: strong impact resistance, moderate impact resistance, and weak impact resistance.

2. The system for analyzing the impact resistance of roadway roof anchorage support according to claim 1, characterized in that, When the simulated impact program is executed, the hammer head of the hammering device strikes for the first time. The hammering device transmits its operating information to the analysis unit. The laser module transmits the anchoring offset distance Δx to the analysis unit, according to Formula 1. Calculate the impact energy E of the hammer head of the hammering device, where v(t) is the velocity of change with hammering time t, F(t) is the impact force of change with hammering time t, and k is the deformation coefficient of the anchoring surface. According to Formula 2 The simulation calculates the impact energy En of the hammer head from the second to the nth hammer blows of the hammer impact device, where n is the number of hammer blows and r is a random number generated by the analysis unit. The analysis unit assigns the impact energy En to the impact energy E and inputs it into Formula 1. In Formula 1, the values ​​of the initial velocity v1 of the hammer head, the hammering time t, the hammer impact area A of the hammer impact device, the hammer mass m of the hammer impact device, the offset distance Δx, the elastic modulus Em of the anchorage, and the Poisson's ratio u of the anchorage remain unchanged. The analysis unit reverse-derives and calculates the final velocity v2 of the hammer head from the second to the nth hammer blows of the hammer impact device. The final hammer velocity v2 from the second to the nth impact is transmitted to the hammering device, which then hammers the exposed side of the anchor according to the final hammer velocity v2 until the simulated impact program stops after the hammer has struck n times.

3. The system for analyzing the impact resistance of roadway roof anchorage support according to claim 1, characterized in that, The hammer blows n times. When the hammer blows the exposed side of the anchorage for the third to n-1th time, the analysis unit executes a stress analysis program. Each time the hammer blows, the preset time node is divided into i equal parts. The analysis unit transmits the time node to the laser module. The laser module divides the hammering time t into i equal parts. At each time node, the laser module obtains the offset distance Δx of the exposed side of the anchorage and transmits it to the analysis unit. A curve table is established with length as the vertical axis and time as the horizontal axis. The analysis unit inputs all the received offset distances Δx into the curve table in sequence to obtain the offset distance curve of the exposed side of the anchorage when it is hammered. The analysis unit uses Formula 3 The specific value of time node fraction i is calculated. After each hammer blow, time node fraction i needs to be recalculated using Formula 3. The offset distance curve is divided into s equal intervals u. The analysis unit marks the starting point coordinates of each equal interval u as (ax, as). The analysis unit presets a sliding window of 3u, and the sliding direction of the sliding window is from left to right, according to Formula 4. Calculate the curve slope η within the sliding window. (ax', as') are the coordinates of the starting point of the first equal interval u within the sliding window, and (ax", as") are the coordinates of the starting point of the last equal interval u within the sliding window. Each time the analysis unit calculates the curve slope η, the sliding window slides to the right by one equal interval u until the sliding window moves to the end of the offset distance curve. The number of times the slope η of the statistical curve is less than 0 is marked as b1, and the number of times the slope η of the statistical unit is greater than or equal to 0 is marked as b2, according to Formula 5. The support impact resistance index ψ of the anchorage is calculated. When the support impact resistance index ψ of the anchorage is greater than 50, the analysis unit marks the corresponding anchorage as the impact resistance reference and the stress analysis program terminates. When the support impact resistance index ψ of the anchorage is less than or equal to 50, the analysis unit randomly selects another anchorage and repeats the stress analysis program until an impact resistance index ψ greater than 50 is obtained.

4. The system for analyzing the impact resistance of roadway roof anchorage support according to claim 1, characterized in that, After the stress analysis program is executed once, the operator uses a hammering device to hammer the unhammered anchors once in sequence. Each time the hammer head strikes, the laser module measures the offset distance Δx of the anchor and transmits it to the analysis unit. The image module acquires the image information of the roadway roof anchors and transmits it to the analysis unit. The analysis unit executes the classification program. When the classification procedure is executed, the analysis unit marks the anchorage offset distance Δx for a single hammer blow as Δfr, according to Formula Six. Calculate the first similarity σ1 between the anchorage after only one hammer blow and the anchorage after n hammer blows; Operators manually mark the color (CMYK four-color value) of the impact-resistant reference object in the image information. cmyk The data is then input into the analysis unit, which has a preset compatibility range. The analysis unit compares each pixel in the image information corresponding to one hammer strike with the four-color value C. cmyk In comparison, the analysis unit places the value in the four-color value C. cmyk The four-color value C within the compatibility range cmyk Pixels are labeled as anchor molecules. The analysis unit generates horizontal clipping lines at the top and bottom of the anchor molecules in each image, and vertical clipping lines at the left and right sides of the anchor molecules in each image. The two horizontal clipping lines and the two vertical clipping lines intersect and close to form a clipping rectangle. The analysis unit selects the four-color values ​​C from the image information of the anchor that has been hammered n times. cmyk The pixel marker is used as the anchoring reference; Within the cropped rectangle, the analysis unit sets the coordinates of the top, bottom, left, and rightmost anchor references to (W1, Y1), (W2, Y2), (W3, Y3), and (W4, Y5) respectively, and sets the coordinates of the anchor elements in each image information to (w1, y1), (w2, y2), (w3, y3), and (w4, y5) respectively, according to Formula Seven. The second similarity σ2 between the anchoring molecule in each image information and the anchoring reference in the image information is calculated. The analysis unit multiplies the first similarity σ1 and the second similarity σ2 to obtain the similarity index Δσ. The analysis unit repeats the calculation of formulas six and seven until all image information has been calculated and then stops. The analysis unit arranges the similarity index Δσ corresponding to each image information in descending order to obtain a similarity sequence. The analysis unit marks the anchorages corresponding to the first 17% of similarity indices Δσ in the similarity sequence as having strong impact resistance, and transmits the coordinates Q of the strong impact resistance anchorages and support points to the database for storage. The analysis unit marks the anchorages corresponding to the first 18% to 51% of similarity indices Δσ in the similarity sequence as having moderate impact resistance, and transmits the coordinates Q of the moderate impact resistance anchorages and support points to the database for storage. The analysis unit marks the anchorages corresponding to the remaining similarity indices Δσ in the similarity sequence as having weak impact resistance, and transmits the coordinates Q of the weak impact resistance anchorages and support points to the database for storage. Operators can obtain the impact resistance capacity of the roadway roof anchorages and the corresponding support point coordinates Q by reading the database.

5. The system for analyzing the impact resistance of roadway roof anchorage support according to claim 1, characterized in that, When the hammer head of the hammering device strikes the exposed side of the anchor for the second and nth time, the analysis unit starts to execute the angle analysis program. The laser module sets five distance measuring points equally on the exposed side of the anchor, with an equal division distance of d. When the hammer head strikes the anchor, it acquires the equal division distance d and the offset distance Δx of the five distance measuring points and transmits them to the analysis unit. The received offset distance Δx is marked as x1, x2, x3, x4 and x5 respectively. According to Formula 8 Calculate the initial offset angle θ1 of the anchorage at the second hammer blow and the final offset angle θ2 at the nth hammer blow, respectively; Subtract the initial offset angle θ1 from the final offset angle θ2 to obtain the offset angle θx.

6. The system for analyzing the impact resistance of roadway roof anchorage support according to claim 3, characterized in that, The number s of the equally divided intervals u is determined by the number of hammer blows n and the slope η of the curve, according to Formula Nine. The number s of equally divided intervals u is calculated.

7. The system for analyzing the impact resistance of roadway roof anchorage support according to claim 1, characterized in that, The database is used to store the analysis data of the analysis unit, the image information of the image module, the hammer impact area A of the hammer impact device, the hammer mass m of the hammer impact device, the elastic modulus Em of the anchorage, the coordinates Q of the support point, and the Poisson's ratio u of the anchorage. The analysis data includes the impact energy E of the first hammer blow, the impact energy En of the second to nth hammer blows, the deformation coefficient k of the anchoring surface, the velocity v(t) changing with the hammering time t, the impact force F(t) changing with the hammering time t, the offset angle θx, the number of hammer blows n, and the random number r. The operation information includes the initial velocity v1 of the hammer head of the hammering device, the final velocity v2 of the hammer head of the hammering device, and the hammering time t.

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