Parameter determination method, device and equipment for deep hole blasting presplitting ore body and medium

Abstract

The invention discloses a method, a device, equipment and a medium for determining parameters of a deep hole blasting pre-splitting ore body, and relates to the technical field of metal mine engineering blasting and ore body blasting loosening pre-splitting, a series of related experiments are designed by utilizing the Liwisson blasting funnel theory, and the parameters of the metal mine deep hole blasting pre-splitting ore body are obtained. Therefore, correct parameters are adopted when the ore body is subjected to blasting fracturing, and the problem that the parameters of the metal mine deep hole blasting presplitting ore body are difficult to determine is solved. The method comprises the following steps: acquiring a first test result of a slope step blasting funnel test, calculating a blasting maximum resistance line according to the first test result, and sending the blasting maximum resistance line to a terminal held by a user; obtaining a second test result uploaded by the user based on the terminal held by the user, and calculating the radius of the single-hole blasting crack by adopting the second test result; and according to the Liwisson blasting funnel principle, the blasting parameters are determined through the single-hole blasting crack radius and the blasting pre-splitting ore body information, and the blasting parameters are sent to a terminal held by a user.

Description

Technical Field

[0001] The present application relates to the technical field of metal mine engineering blasting and ore body blasting loosening pre-splitting, and in particular to a method, device, equipment and medium for determining parameters of deep hole blasting pre-splitting ore bodies. Background Art

[0002] With the development of blasting technology in metal mine engineering, explosives are usually used for mine blasting during mining, so it is necessary to pre-splitting dense ore bodies.

[0003] In the related art, hydraulic fracturing and explosive fracturing are the main methods for processing dense ore bodies. However, the applicant realizes that explosive fracturing is simpler than hydraulic fracturing, and there are currently no clear regulations on parameter setting methods. Incorrect blasting parameters will increase the difficulty of mining. Summary of the invention

[0004] In view of this, the present application provides a method, device, equipment and medium for determining parameters of deep hole blasting pre-splitting ore bodies, the main purpose of which is to solve the problem that when mining dense ore bodies, blasting fracturing is not clearly stipulated and incorrect blasting parameters will increase the difficulty of mining.

[0005] According to the first aspect of the present application, a method for determining parameters of a deep hole blasting pre-splitting ore body is provided, the method comprising:

[0006] Obtaining a first test result of a slope step blasting funnel test, calculating a blasting maximum resistance line according to the first test result, and sending the blasting maximum resistance line to a terminal held by a user;

[0007] Obtaining a second test result uploaded by the user based on the terminal held by the user, and calculating the single-hole blasting gap radius using the second test result, wherein the second test result is obtained by performing a single-hole blasting gap radius measurement test using the blasting maximum resistance line;

[0008] The blasting pre-splitting ore body information is obtained, and according to the Livingston blasting funnel principle, the blasting parameters are determined using the single-hole blasting gap radius and the blasting pre-splitting ore body information, and the blasting parameters are sent to the terminal held by the user.

[0009] Optionally, calculating the maximum burst resistance line according to the first test result includes:

[0010] The depth corresponding to the inclined blasting hole, the residual hole depth after blasting and the angle between the inclined blasting hole and the free surface are obtained in the first test result, and the depth corresponding to the inclined blasting hole, the residual hole depth after blasting and the angle between the inclined blasting hole and the free surface are used to calculate to obtain multiple resistance lines, wherein:

[0011] w=(l-l1)sinθ

[0012] Wherein, w is the maximum resistance line of blasting, l is the depth corresponding to the inclined blasting hole, l1 is the residual hole depth after blasting, and θ is the angle between the inclined blasting hole and the free surface;

[0013] The average value of the multiple resistance lines is taken as the maximum resistance line for explosion.

[0014] Optionally, the calculating of the single-hole blasting gap radius by using the second test result includes:

[0015] The crack expansion radius of each blast hole is read in the second test result to obtain multiple crack expansion radii, and the average value of the multiple crack expansion radii is used as the single-hole blasting crack radius.

[0016] Optionally, the blasting parameters are determined based on the Livingston blasting funnel principle and using the single-hole blasting gap radius and the blasting pre-splitting ore body information, including:

[0017] Reading the diameter of the pre-splitting hole, the depth of the pre-splitting hole, and the charge density in the blasting pre-splitting ore body information;

[0018] The charge amount of each pre-splitting hole is calculated by using the hole diameter of the pre-splitting hole, the hole depth of the pre-splitting hole, and the charge density, wherein:

[0019]

[0020] Wherein, Q is the charge amount of each pre-crack hole, d is the aperture of the pre-crack hole, L-2 is the depth of the pre-crack hole, L1 is the plugging length, L1=(L-2) / 4, and ρ is the charge density;

[0021] According to the Livingston blasting funnel principle, the hole spacing of the pre-splitting holes is calculated using the single-hole blasting gap radius and the charge amount of each pre-splitting hole;

[0022] The hole depth of the pre-splitting holes, the hole spacing of the pre-splitting holes, and the charge amount of each pre-splitting hole are used as the blasting parameters.

[0023] Optionally, the hole spacing of the pre-splitting holes is calculated based on the Livingston blasting funnel principle and using the single-hole blasting gap radius and the charge amount of each pre-splitting hole, including:

[0024] Reading the charge amount of the single-hole blasting test in the blasting pre-splitting ore body information;

[0025] The hole spacing of the pre-splitting holes is calculated by using the charge of each pre-splitting hole, the charge of the single-hole blasting test, and the single-hole blasting gap radius, wherein:

[0026]

[0027] Wherein, D is the hole spacing of the pre-crack holes, Q is the charge of each pre-crack hole, q is the charge of the single-hole blasting test, and R is the radius of the single-hole blasting gap.

[0028] Optionally, before obtaining the first test result of the slope step blasting funnel test, the method further includes:

[0029] Obtaining a test scheme for the slope step blasting funnel test, wherein the test scheme for the slope step blasting funnel test includes a first group of blasting tests and a second group of blasting tests, wherein the angle between the first group of blasting tests and the free surface is θ1, and the angle between the second group of blasting tests and the free surface is θ2, and each group of blasting tests includes two blastholes perpendicular to the free surface, each of which has a length of l, and each of which includes a charge length portion and a plugging length portion, wherein the length of the plugging length portion is l / 4, and the length of the charge length portion is 3l / 4;

[0030] Sending the test plan of the slope step blasting funnel test to the terminal held by the user;

[0031] Receive a first test result of the slope step blasting funnel test uploaded by the user based on the terminal held by the user.

[0032] Optionally, before obtaining the second test result uploaded by the user based on the terminal held by the user, the method further includes:

[0033] Obtaining an experimental scheme for the single-hole blasting gap radius determination test, wherein the experimental scheme for the single-hole blasting gap radius determination test includes four groups of single-hole blasting tests, wherein the hole depth of each group of the single-hole blasting tests is w, the hole diameter is 40 mm, the charge length of the blasthole of each group of the single-hole blasting tests is 300 mm, and the charge density of each group of the single-hole blasting tests is ρ;

[0034] The experimental scheme of the single-hole blasting gap radius determination test is sent to the terminal held by the user.

[0035] According to a second aspect of the present application, a device for determining parameters of a deep hole blasting pre-splitting ore body is provided, the device comprising:

[0036] A first calculation module is used to obtain a first test result of the slope step blasting funnel test, calculate a blasting maximum resistance line according to the first test result, and send the blasting maximum resistance line to a terminal held by a user;

[0037] A second calculation module is used to obtain a second test result uploaded by the user based on the terminal held by the user, and calculate the single-hole blasting gap radius using the second test result, wherein the second test result is obtained by performing a single-hole blasting gap radius measurement test using the blasting maximum resistance line;

[0038] The determination module is used to obtain blasting pre-splitting ore body information, determine blasting parameters based on the Livingston blasting funnel principle, using the single-hole blasting gap radius and the blasting pre-splitting ore body information, and send the blasting parameters to the terminal held by the user.

[0039] Optionally, the first calculation module is used to obtain the depth corresponding to the inclined blasting hole, the residual hole depth after blasting, and the angle between the inclined blasting hole and the free surface in the first test result, and use the depth corresponding to the inclined blasting hole, the residual hole depth after blasting, and the angle between the inclined blasting hole and the free surface to calculate to obtain multiple resistance lines, wherein:

[0040] w=(l-l1)sinθ

[0041] Among them, w is the maximum resistance line of blasting, l is the depth corresponding to the inclined blasting hole, l1 is the residual hole depth after blasting, θ is the angle between the inclined blasting hole and the free surface; the average value of the multiple resistance lines is taken as the maximum resistance line of blasting.

[0042] Optionally, the second calculation module is used to read the crack expansion radius of each blasthole in the second test result, obtain multiple crack expansion radii, and use the average value of the multiple crack expansion radii as the single-hole blasting crack radius.

[0043] Optionally, the determination module is used to read the diameter of the pre-splitting hole, the hole depth of the pre-splitting hole, and the charge density in the blasting pre-splitting ore body information; and calculate the charge amount of each pre-splitting hole using the diameter of the pre-splitting hole, the hole depth of the pre-splitting hole, and the charge density, wherein:

[0044]

[0045] Wherein, Q is the charge of each pre-splitting hole, d is the aperture of the pre-splitting hole, L-2 is the hole depth of the pre-splitting hole, L1 is the plugging length, L1=(L-2) / 4, and ρ is the charge density; according to the Livingston blasting funnel principle, the hole spacing of the pre-splitting holes is calculated using the single-hole blasting gap radius and the charge of each pre-splitting hole; the hole depth of the pre-splitting holes, the hole spacing of the pre-splitting holes, and the charge of each pre-splitting hole are used as the blasting parameters.

[0046] Optionally, the determination module is used to read the charge of a single-hole blasting test in the blasting pre-splitting ore body information; and calculate the hole spacing of the pre-splitting holes using the charge of each pre-splitting hole, the charge of the single-hole blasting test, and the single-hole blasting gap radius, wherein:

[0047]

[0048] Wherein, D is the hole spacing of the pre-crack holes, Q is the charge of each pre-crack hole, q is the charge of the single-hole blasting test, and R is the radius of the single-hole blasting gap.

[0049] Optionally, the device further comprises:

[0050] The first acquisition module is used to obtain the test plan of the slope step blasting funnel test, the test plan of the slope step blasting funnel test includes a first group of blasting tests and a second group of blasting tests, the angle between the first group of blasting tests and the free surface is θ1, the angle between the second group of blasting tests and the free surface is θ2, each group of the blasting tests includes two blast holes perpendicular to the free surface, each of the blast holes has a length of l, and each of the blast holes includes a charging length part and a blocking length part, wherein the length of the blocking length part is l / 4, and the length of the charging length part is 3l / 4; the test plan of the slope step blasting funnel test is sent to the terminal held by the user; and the first test result of the slope step blasting funnel test uploaded by the user based on the terminal held is received.

[0051] The second acquisition module is used to obtain the experimental plan of the single-hole blasting gap radius determination test, the experimental plan of the single-hole blasting gap radius determination test includes four groups of single-hole blasting tests, the hole depth of each group of the single-hole blasting tests is w, the hole diameter is 40mm, the blasthole charging length of each group of the single-hole blasting tests is 300mm, and the charging density of each group of the single-hole blasting tests is ρ; the experimental plan of the single-hole blasting gap radius determination test is sent to the terminal held by the user.

[0052] According to a third aspect of the present application, a device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of any one of the methods described in the first aspect when executing the computer program.

[0053] According to a fourth aspect of the present application, a medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps of any one of the methods described in the first aspect are implemented.

[0054] By means of the above technical scheme, the present application provides a method, device, equipment and medium for determining parameters of a deep hole blasting pre-splitting ore body. The present application obtains the first test result of the slope step blasting funnel test, calculates the maximum blasting resistance line according to the first test result, sends the maximum blasting resistance line to the terminal held by the user, obtains the second test result uploaded by the user based on the terminal held, calculates the single hole blasting gap radius using the second test result, obtains the blasting pre-splitting ore body information, and determines the blasting parameters based on the Livingston blasting funnel principle using the single hole blasting gap radius and the blasting pre-splitting ore body information, and sends the blasting parameters to the terminal held by the user, wherein the second test result is obtained by using the blasting maximum resistance line to perform a single hole blasting gap radius determination test. The present application uses the Livingston blasting funnel theory to design a series of related experiments to obtain the parameters of the deep hole blasting pre-splitting ore body in metal mines, so as to ensure that the correct parameters are used when the ore body is blasted and cracked, thereby solving the problem of difficulty in determining the parameters of the deep hole blasting pre-splitting ore body in metal mines.

[0055] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0057] Figure 1 A schematic flow chart of a method for determining parameters of a deep hole blasting pre-splitting ore body provided in an embodiment of the present application is shown;

[0058] Figure 2A A schematic flow chart of another method for determining parameters of a deep hole blasting pre-splitting ore body provided in an embodiment of the present application is shown;

[0059] Figure 2B It shows a schematic diagram of the arrangement of blastholes for the slope step blasting funnel test provided in an embodiment of the present application;

[0060] Figure 2C A schematic diagram of the arrangement of blastholes for a single-hole blasting test provided in an embodiment of the present application is shown;

[0061] Figure 2D A schematic diagram of an iron ore body pre-splitting by on-site blasting provided in an embodiment of the present application is shown;

[0062] Figure 2EA schematic flow chart of a method for determining parameters of a metal mine deep hole blasting pre-splitting ore body provided in an embodiment of the present application is shown;

[0063] Figure 3A A schematic diagram showing a structure of determining parameters for pre-splitting an ore body by deep hole blasting provided in an embodiment of the present application is shown;

[0064] Figure 3B It shows another structural schematic diagram of parameter determination of deep hole blasting pre-splitting ore body provided in an embodiment of the present application;

[0065] Figure 4 A schematic diagram of the device structure of a device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0066] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0067] The present application embodiment provides a method for determining parameters of a deep hole blasting pre-splitting ore body, such as Figure 1 As shown, the method includes:

[0068] 101. Obtain a first test result of the slope step blasting funnel test, calculate a maximum blasting resistance line according to the first test result, and send the maximum blasting resistance line to a terminal held by a user.

[0069] The mining of dense ore bodies faces the problems of low blasting efficiency and difficulty in implementing mining processes, and pre-cracking treatment is required. Currently, hydraulic fracturing and blasting fracturing are the main methods for treating dense ore bodies. Compared with hydraulic fracturing, blasting fracturing is simpler, and there are no clear regulations on the parameter setting method. Incorrect blasting parameters will increase the difficulty of mining.

[0070] To solve this problem, the present application proposes a method for determining parameters of a deep hole blasting pre-splitting ore body, which uses the test results of a slope step blasting funnel test to determine the maximum blasting resistance line, then uses the blasting maximum resistance line to conduct a single hole blasting gap radius measurement test, and then uses the test results of the single hole blasting gap radius measurement test to determine the single hole blasting gap radius, and finally, combines the range of the blasting pre-splitting ore body and the existing rock drilling equipment to determine the blasting parameters such as the hole depth, hole spacing, and charge amount of the blasting pre-splitting hole, which can safely and quickly determine the blasting parameters and solves the problem of difficulty in determining parameters of deep hole blasting pre-splitting ore bodies in metal mines. The executor of the present application may be a blasting parameter determination system, which relies on the computing power of the server to provide services to users. The server may be an independent server or may provide cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (CDN), as well as servers for basic cloud computing such as big data and artificial intelligence platforms, so that the blasting parameter determination system can quickly and accurately calculate the blasting parameters.

[0071] In the embodiment of the present application, the blasting parameter determination system obtains the first test result of the slope step blasting funnel test, and the first test result includes the length of each blast hole, the angle between each blast hole and the free surface, and the residual hole depth of all blast holes after blasting. Then, the blasting parameter determination system calculates the blasting maximum resistance line according to the first test result, and sends the blasting maximum resistance line to the terminal held by the user, so that the user can use the blasting maximum resistance line to perform a single hole blasting gap radius determination test.

[0072] 102. Obtain a second test result uploaded by the user based on the terminal held by the user, and use the second test result to calculate the single-hole blasting gap radius.

[0073] In the embodiment of the present application, the blasting parameter determination system obtains the second test result uploaded by the user based on the terminal held, and uses the second test result to calculate the single-hole blasting gap radius, wherein the second test result is obtained by using the blasting maximum resistance line to perform a single-hole blasting gap radius determination test, and the second test result includes the crack expansion radius of each blast hole. According to the single-hole blasting gap radius, the blasting parameter determination system can ensure that the correct parameters are used when the ore body is blasted and fractured.

[0074] 103. Acquire blasting pre-splitting ore body information, determine blasting parameters based on Livingston blasting funnel principle, use single-hole blasting gap radius and blasting pre-splitting ore body information, and send the blasting parameters to the user's terminal.

[0075] In the embodiment of the present application, the blasting parameter determination system obtains blasting pre-splitting ore body information, and according to the Livingston blasting funnel principle, uses the single-hole blasting gap radius and blasting pre-splitting ore body information to determine the blasting parameters, and sends the blasting parameters to the terminal held by the user. Among them, the blasting pre-splitting ore body information is the ore body data of the metal ore that needs to be blasted pre-splitting collected according to the on-site conditions, and the blasting parameter determination system can obtain accurate blasting parameters in combination with the test results and the on-site conditions.

[0076] The method provided in the embodiment of the present application obtains the first test result of the slope step blasting funnel test, calculates the maximum blasting resistance line according to the first test result, sends the maximum blasting resistance line to the terminal held by the user, obtains the second test result uploaded by the user based on the terminal held, calculates the single-hole blasting gap radius using the second test result, obtains the blasting pre-splitting ore body information, and determines the blasting parameters using the single-hole blasting gap radius and the blasting pre-splitting ore body information according to the Livingston blasting funnel principle, and sends the blasting parameters to the terminal held by the user, wherein the second test result is obtained by using the blasting maximum resistance line to perform a single-hole blasting gap radius determination test. The present application uses the Livingston blasting funnel theory to design a series of related experiments to obtain the parameters of the deep hole blasting pre-splitting ore body in metal mines, so as to ensure that the correct parameters are used when the ore body is blasted and cracked, thereby solving the problem of difficulty in determining the parameters of the deep hole blasting pre-splitting ore body in metal mines.

[0077] Further, as a refinement and expansion of the specific implementation of the above embodiment, in order to fully illustrate the specific implementation process of this embodiment, the embodiment of the present application provides another method for determining parameters of a deep hole blasting pre-splitting ore body, such as Figure 2A As shown, the method includes:

[0078] 201. Obtain a test plan for a slope step blasting funnel test, send the test plan for the slope step blasting funnel test to a terminal held by a user, and receive a first test result of the slope step blasting funnel test uploaded by the user based on the terminal held by the user.

[0079] In an embodiment of the present application, a blasting parameter determination system obtains a test scheme for a slope step blasting funnel test, wherein the test scheme for the slope step blasting funnel test includes a first group of blasting tests and a second group of blasting tests, wherein the angle between the first group of blasting tests and the free surface is θ1, and the angle between the second group of blasting tests and the free surface is θ2, and each group of blasting tests includes two blastholes perpendicular to the free surface, each blasthole is l long, and each blasthole includes a charge length portion and a plugging length portion, wherein the length of the plugging length portion is l / 4, and the length of the charge length portion is 3l / 4. For example, due to on-site needs, an iron mine needs to blast and loosen an ore body that adopts a natural collapse method, and the on-site slope step blastholes are as follows: Figure 2BAs shown, two groups of slope step blasting funnel tests are designed, and the angles between each group of blasting tests and the free surface are 35° and 45° respectively. Each group of blasting tests includes two blastholes perpendicular to the tunnel wall, and the length of each blasthole is 1.8m, of which the blocking length is 0.3m and the charging length is 1.5m. Then, the blasting parameter determination system sends the test plan of the slope step blasting funnel test to the terminal held by the user, so that the user can perform the slope step blasting funnel test according to the test plan. Then, the blasting parameter determination system receives the first test result of the slope step blasting funnel test uploaded by the user based on the terminal held.

[0080] 202. Obtain a first test result of the slope step blasting funnel test, calculate a maximum blasting resistance line according to the first test result, and send the maximum blasting resistance line to a terminal held by a user.

[0081] In the embodiment of the present application, the blasting parameter determination system obtains the depth corresponding to the inclined blasting hole, the residual hole depth after blasting, and the angle between the inclined blasting hole and the free surface in the first test result, and uses the depth corresponding to the inclined blasting hole, the residual hole depth after blasting, and the angle between the inclined blasting hole and the free surface to calculate and obtain multiple resistance lines. The calculation formula is the following formula 1:

[0082] Formula 1: w=(l-l1)sinθ

[0083] Among them, w is the maximum resistance line of blasting, l is the depth corresponding to the inclined blasting hole, the unit is m, l1 is the residual hole depth after blasting, the unit is m, and θ is the angle between the inclined blasting hole and the free surface. It should be noted that the inclined step blasting funnel test includes multiple groups of blasting tests, each group of blasting tests has the corresponding depth of the inclined blasting hole, the residual hole depth after blasting and the angle between the inclined blasting hole and the free surface. Then, the blasting parameter determination system takes the average value of multiple resistance lines as the maximum resistance line of blasting. For example, it can be seen from the inclined step blasting funnel test that the residual lengths of the two groups of holes are 0.39m and 0.56m respectively, and the resistance lines can be obtained as 0.81m and 0.88m respectively. It can be considered that the maximum resistance line of the explosive package is 0.845m. According to the on-site conditions, the user conducts a slope step blasting funnel test at an appropriate location and uploads the test results. In this way, the blasting parameter determination system can obtain the maximum resistance line based on the remaining length and angle of the blasthole, so as to subsequently obtain the parameters of the pre-splitting ore body for deep hole blasting in metal mines and improve the safety of blasting.

[0084] 203. Obtain an experimental plan for a single-hole blasting gap radius measurement test, and send the experimental plan for the single-hole blasting gap radius measurement test to a terminal held by a user.

[0085] In the embodiment of the present application, the blasting parameter determination system obtains the experimental scheme of the single-hole blasting gap radius determination test, wherein the experimental scheme of the single-hole blasting gap radius determination test includes four groups of single-hole blasting tests, each group of single-hole blasting tests has a hole depth of w and a hole diameter of 40 mm, each group of single-hole blasting tests has a blasthole charge length of 300 mm, and each group of single-hole blasting tests has a charge density of ρ, and its charge structure and explosive type are the same as the actual blasting. Then, the blasting parameter determination system sends the experimental scheme of the single-hole blasting gap radius determination test to the terminal held by the user. For example, Figure 2C The schematic diagram of the arrangement of blastholes for the single-hole blasting test is shown in the figure. The blasting parameter determination system sets 4 groups of single-hole blasting tests with a hole depth of 0.845m and a hole diameter of 40mm. The charge length of each blasthole is 300mm, and the charge density is 0.95t / m3. Its charge structure and explosive type are the same as those of the actual blasting. Two groups of blastholes are set on both sides of the vein tunnel, and the blastholes are perpendicular to the tunnel wall and the spacing is greater than 3m.

[0086] 204. Obtain a second test result uploaded by the user based on the terminal held by the user, and calculate the single-hole blasting gap radius using the second test result.

[0087] In an embodiment of the present application, the blasting parameter determination system obtains the second test result uploaded by the user based on the terminal held, and uses the second test result to calculate the single-hole blasting gap radius, wherein the second test result is obtained by using an ultrasonic tester to measure the crack expansion radius of each blast hole after the single-hole blasting gap radius determination test is performed using the blasting maximum resistance line. Specifically, the blasting parameter determination system reads the crack expansion radius of each blast hole in the second test result, obtains multiple crack expansion radii, and uses the average value of the multiple crack expansion radii as the single-hole blasting gap radius. For example, after the single-hole blasting test is completed, the crack expansion radius of each blast hole is measured by an ultrasonic tester, and the average value of all data is the actual single-hole blasting gap radius R, which is 1.205m. The blasting parameter determination system further determines the single-hole blasting gap radius according to the single-hole blasting gap radius determination test, so as to determine the blasting parameters safely and quickly.

[0088] 205. Acquire blasting pre-splitting ore body information, determine blasting parameters based on Livingston blasting funnel principle, use single-hole blasting gap radius and blasting pre-splitting ore body information, and send the blasting parameters to the user's terminal.

[0089] In an embodiment of the present application, the user determines the hole depth and charge based on the site conditions and test results, and collects the data of the metal ore body that needs to be pre-splitting for blasting according to the site conditions, wherein the thickness of the pre-splitting ore body is L, the depth of the pre-splitting hole is L-2, and the diameter of the pre-splitting hole can be determined as d based on the site equipment conditions. The user uploads these data as blasting pre-splitting ore body information. Then, the blasting parameter determination system reads the diameter of the pre-splitting hole, the depth of the pre-splitting hole, and the charge density in the blasting pre-splitting ore body information. Next, the blasting parameter determination system uses the diameter of the pre-splitting hole, the depth of the pre-splitting hole, and the charge density to calculate the charge of each pre-splitting hole, and the calculation formula is the following formula 2:

[0090] Formula 2:

[0091] Among them, Q is the charge of each pre-splitting hole, in kg, d is the hole diameter of the pre-splitting hole, in m, L-2 is the hole depth of the pre-splitting hole, L1 is the plugging length, in m, L1 = (L-2) / 4, and ρ is the charge density. Subsequently, the blasting parameter determination system calculates the hole spacing of the pre-splitting holes based on the Livingston blasting funnel principle, using the single-hole blasting gap radius and the charge of each pre-splitting hole.

[0092] Specifically, the blasting parameter determination system reads the charge of the single-hole blasting test in the blasting pre-splitting ore body information. Then, the blasting parameter determination system calculates the hole spacing of the pre-splitting holes using the charge of each pre-splitting hole, the charge of the single-hole blasting test, and the radius of the single-hole blasting gap. The calculation formula is the following formula 3:

[0093] Formula 3:

[0094] Where D is the distance between the pre-splitting holes, in m, Q is the charge of each pre-splitting hole, in kg, q is the charge of the single-hole blasting test, in kg, q = (0.02) 2 (0.3)πρ=0.00012πρ, R is the radius of the single-hole blasting gap. Finally, the blasting parameter determination system uses the depth of the pre-splitting hole, the hole spacing of the pre-splitting holes, and the charge of each pre-splitting hole as blasting parameters. For example, Figure 2DThe schematic diagram of the iron ore body pre-splitting by on-site blasting is shown. The thickness of the pre-splitting ore body is 30m, the depth of the pre-splitting hole is 28m, the blocking length is 7m, and according to the on-site equipment conditions, the diameter of the pre-splitting hole can be determined to be 100mm and the charge is 157kg. Then, based on the Livingston blasting funnel principle, the hole spacing is determined to be 18.29m. The blasting parameter determination system determines the blasting parameters such as the hole depth, hole spacing, and charge of the blasting pre-splitting hole based on the Livingston blasting funnel principle, combined with the scope of the blasting pre-splitting ore body and the existing rock drilling equipment. It can solve the problem of difficult determination of parameters for deep hole blasting pre-splitting ore bodies in metal mines, improve mining progress, and improve mining efficiency and safety.

[0095] Based on the above process, the schematic flow chart of the method for determining parameters of deep hole blasting pre-splitting ore bodies in metal mines proposed in the embodiment of the present application is as follows:

[0096] like Figure 2E As shown, firstly, according to the site conditions, the slope step blasting funnel test is carried out at a suitable location to obtain the remaining length and angle of the blasthole and find the maximum resistance line. Then, based on the maximum resistance line, a single hole blasting gap radius measurement test is carried out to obtain the single hole blasting gap radius. Subsequently, the hole depth and charge amount are determined based on the site conditions and test results, and the hole spacing is determined based on the Livingston blasting funnel principle.

[0097] The method provided in the embodiment of the present application obtains the first test result of the slope step blasting funnel test, calculates the maximum blasting resistance line according to the first test result, sends the maximum blasting resistance line to the terminal held by the user, obtains the second test result uploaded by the user based on the terminal held, calculates the single-hole blasting gap radius using the second test result, obtains the blasting pre-splitting ore body information, and determines the blasting parameters using the single-hole blasting gap radius and the blasting pre-splitting ore body information according to the Livingston blasting funnel principle, and sends the blasting parameters to the terminal held by the user, wherein the second test result is obtained by using the blasting maximum resistance line to perform a single-hole blasting gap radius determination test. The present application uses the Livingston blasting funnel theory to design a series of related experiments to obtain the parameters of the deep hole blasting pre-splitting ore body in metal mines, so as to ensure that the correct parameters are used when the ore body is blasted and cracked, thereby solving the problem of difficulty in determining the parameters of the deep hole blasting pre-splitting ore body in metal mines.

[0098] Further, as Figure 1 In a specific implementation of the method, the present application provides a parameter determination device for deep hole blasting pre-splitting ore body, such as Figure 3A As shown, the device includes: a first calculation module 301, a second calculation module 302 and a determination module 303.

[0099] The first calculation module 301 is used to obtain a first test result of the slope step blasting funnel test, calculate a blasting maximum resistance line according to the first test result, and send the blasting maximum resistance line to a terminal held by a user;

[0100] The second calculation module 302 is used to obtain the second test result uploaded by the user based on the terminal held by the user, and calculate the single-hole blasting gap radius using the second test result, wherein the second test result is obtained by performing a single-hole blasting gap radius measurement test using the blasting maximum resistance line;

[0101] The determination module 303 is used to obtain blasting pre-splitting ore body information, determine blasting parameters based on the Livingston blasting funnel principle, using the single-hole blasting gap radius and the blasting pre-splitting ore body information, and send the blasting parameters to the terminal held by the user.

[0102] In a specific application scenario, the first calculation module 301 is used to obtain the depth corresponding to the inclined blasting hole, the residual hole depth after blasting, and the angle between the inclined blasting hole and the free surface in the first test result, and calculate using the depth corresponding to the inclined blasting hole, the residual hole depth after blasting, and the angle between the inclined blasting hole and the free surface to obtain multiple resistance lines, wherein:

[0103] w=(l-l1)sinθ

[0104] Among them, w is the maximum resistance line of blasting, l is the depth corresponding to the inclined blasting hole, l1 is the residual hole depth after blasting, θ is the angle between the inclined blasting hole and the free surface; the average value of the multiple resistance lines is taken as the maximum resistance line of blasting.

[0105] In a specific application scenario, the second calculation module 302 is used to read the crack expansion radius of each blasthole in the second test result, obtain multiple crack expansion radii, and use the average value of the multiple crack expansion radii as the single-hole blasting crack radius.

[0106] In a specific application scenario, the determination module 303 is used to read the aperture of the pre-splitting hole, the hole depth of the pre-splitting hole, and the charge density in the blasting pre-splitting ore body information; and calculate the charge amount of each pre-splitting hole using the aperture of the pre-splitting hole, the hole depth of the pre-splitting hole, and the charge density, wherein:

[0107]

[0108] Wherein, Q is the charge of each pre-splitting hole, d is the aperture of the pre-splitting hole, L-2 is the hole depth of the pre-splitting hole, L1 is the plugging length, L1=(L-2) / 4, and ρ is the charge density; according to the Livingston blasting funnel principle, the hole spacing of the pre-splitting holes is calculated using the single-hole blasting gap radius and the charge of each pre-splitting hole; the hole depth of the pre-splitting holes, the hole spacing of the pre-splitting holes, and the charge of each pre-splitting hole are used as the blasting parameters.

[0109] In a specific application scenario, the determination module 303 is used to read the charge of the single-hole blasting test in the blasting pre-splitting ore body information; and calculate the hole spacing of the pre-splitting holes using the charge of each pre-splitting hole, the charge of the single-hole blasting test, and the radius of the single-hole blasting gap, wherein:

[0110]

[0111] Wherein, D is the hole spacing of the pre-crack holes, Q is the charge of each pre-crack hole, q is the charge of the single-hole blasting test, and R is the radius of the single-hole blasting gap.

[0112] In specific application scenarios, such as Figure 3B As shown, the device further includes: a first acquisition module 304 and a second acquisition module 305 .

[0113] The first acquisition module 304 is used to obtain the test plan of the slope step blasting funnel test, the test plan of the slope step blasting funnel test includes a first group of blasting tests and a second group of blasting tests, the angle between the first group of blasting tests and the free surface is θ1, the angle between the second group of blasting tests and the free surface is θ2, each group of the blasting tests includes two blast holes perpendicular to the free surface, each of the blast holes has a length of l, and each of the blast holes includes a charging length part and a blocking length part, wherein the length of the blocking length part is l / 4, and the length of the charging length part is 3l / 4; send the test plan of the slope step blasting funnel test to the terminal held by the user; receive the first test result of the slope step blasting funnel test uploaded by the user based on the terminal held.

[0114] The second acquisition module 305 is used to obtain the experimental plan of the single-hole blasting gap radius determination test, the experimental plan of the single-hole blasting gap radius determination test includes four groups of single-hole blasting tests, the hole depth of each group of the single-hole blasting test is w, the hole diameter is 40mm, the blasthole charging length of each group of the single-hole blasting test is 300mm, and the charging density of each group of the single-hole blasting test is ρ; the experimental plan of the single-hole blasting gap radius determination test is sent to the terminal held by the user.

[0115] The device provided in the embodiment of the present application obtains the first test result of the slope step blasting funnel test, calculates the maximum blasting resistance line according to the first test result, sends the maximum blasting resistance line to the terminal held by the user, obtains the second test result uploaded by the user based on the terminal held, calculates the single-hole blasting gap radius using the second test result, obtains the blasting pre-splitting ore body information, and determines the blasting parameters using the single-hole blasting gap radius and the blasting pre-splitting ore body information according to the Livingston blasting funnel principle, and sends the blasting parameters to the terminal held by the user, wherein the second test result is obtained by using the blasting maximum resistance line to perform a single-hole blasting gap radius determination test. The present application uses the Livingston blasting funnel theory to design a series of related experiments to obtain the parameters of the deep hole blasting pre-splitting ore body in metal mines, so as to ensure that the correct parameters are used when the ore body is blasted and cracked, thereby solving the problem of difficulty in determining the parameters of the deep hole blasting pre-splitting ore body in metal mines.

[0116] It should be noted that for other corresponding descriptions of the functional units involved in the parameter determination device for deep hole blasting pre-splitting ore body provided in the embodiment of the present application, reference can be made to Figure 1 and FIG. 2A to FIG. 2E The corresponding description in will not be repeated here.

[0117] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0118] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0119] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

[0120] In an exemplary embodiment, see Figure 4, and also provides a device, which includes a bus, a processor, a memory and a communication interface, and may also include an input and output interface and a display device, wherein each functional unit can communicate with each other through the bus. The memory stores a computer program, and the processor is used to execute the program stored in the memory and execute the parameter determination method of the deep hole blasting pre-splitting ore body in the above embodiment.

[0121] A medium stores a computer program, which, when executed by a processor, implements the steps of the method for determining parameters of a deep hole blasting pre-splitting ore body.

[0122] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present application can be implemented by hardware, or by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each implementation scenario of the present application.

[0123] Those skilled in the art will appreciate that the accompanying drawings are merely schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily required for implementing the present application.

[0124] Those skilled in the art will appreciate that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0125] The above application serial numbers are for description only and do not represent the advantages or disadvantages of the implementation scenarios.

[0126] The above disclosure only discloses several specific implementation scenarios of the present application. However, the present application is not limited thereto, and any changes that can be conceived by technicians in this field should fall within the scope of protection of the present application.

Claims

1. A method for determining parameters of a deep hole blasting pre-splitting ore body, characterized in that: include: Obtaining a first test result of a slope step blasting funnel test, calculating a blasting maximum resistance line according to the first test result, and sending the blasting maximum resistance line to a terminal held by a user; Obtaining a second test result uploaded by the user based on the terminal held by the user, and calculating the single-hole blasting gap radius using the second test result, wherein the second test result is obtained by performing a single-hole blasting gap radius measurement test using the blasting maximum resistance line; The blasting pre-splitting ore body information is obtained, and according to the Livingston blasting funnel principle, the blasting parameters are determined using the single-hole blasting gap radius and the blasting pre-splitting ore body information, and the blasting parameters are sent to the terminal held by the user.

2. The method according to claim 1, characterized in that The step of calculating the maximum burst resistance line according to the first test result comprises: The depth corresponding to the inclined blasting hole, the residual hole depth after blasting and the angle between the inclined blasting hole and the free surface are obtained in the first test result, and the depth corresponding to the inclined blasting hole, the residual hole depth after blasting and the angle between the inclined blasting hole and the free surface are used to calculate to obtain multiple resistance lines, wherein: w=(l-l1)sinθ Wherein, w is the maximum resistance line of blasting, l is the depth corresponding to the inclined blasting hole, l1 is the residual hole depth after blasting, and θ is the angle between the inclined blasting hole and the free surface; The average value of the multiple resistance lines is taken as the maximum resistance line for explosion.

3. The method according to claim 1, characterized in that The method of calculating the single-hole blasting gap radius by using the second test result includes: The crack expansion radius of each blast hole is read in the second test result to obtain multiple crack expansion radii, and the average value of the multiple crack expansion radii is used as the single-hole blasting crack radius.

4. The method according to claim 1, characterized in that The method of determining blasting parameters based on the Livingston blasting funnel principle and using the single-hole blasting gap radius and the blasting pre-splitting ore body information includes: Reading the diameter of the pre-splitting hole, the depth of the pre-splitting hole, and the charge density in the blasting pre-splitting ore body information; The charge amount of each pre-splitting hole is calculated by using the hole diameter of the pre-splitting hole, the hole depth of the pre-splitting hole, and the charge density, wherein: Wherein, Q is the charge amount of each pre-crack hole, d is the aperture of the pre-crack hole, L-2 is the depth of the pre-crack hole, L1 is the plugging length, L1=(L-2) / 4, and ρ is the charge density; According to the Livingston blasting funnel principle, the hole spacing of the pre-splitting holes is calculated using the single-hole blasting gap radius and the charge amount of each pre-splitting hole; The hole depth of the pre-splitting holes, the hole spacing of the pre-splitting holes, and the charge amount of each pre-splitting hole are used as the blasting parameters.

5. The method according to claim 4, characterized in that The method of calculating the hole spacing of the pre-splitting holes according to the Livingston blasting funnel principle and using the single-hole blasting gap radius and the charge amount of each pre-splitting hole comprises: Reading the charge amount of the single-hole blasting test in the blasting pre-splitting ore body information; The hole spacing of the pre-splitting holes is calculated by using the charge of each pre-splitting hole, the charge of the single-hole blasting test, and the single-hole blasting gap radius, wherein: Wherein, D is the hole spacing of the pre-crack holes, Q is the charge of each pre-crack hole, q is the charge of the single-hole blasting test, and R is the radius of the single-hole blasting gap.

6. The method according to claim 1, characterized in that Before obtaining the first test result of the slope step blasting funnel test, the method further includes: Obtaining a test scheme for the slope step blasting funnel test, wherein the test scheme for the slope step blasting funnel test includes a first group of blasting tests and a second group of blasting tests, wherein the angle between the first group of blasting tests and the free surface is θ1, and the angle between the second group of blasting tests and the free surface is θ2, and each group of blasting tests includes two blastholes perpendicular to the free surface, each of which has a length of l, and each of which includes a charge length portion and a plugging length portion, wherein the length of the plugging length portion is l / 4, and the length of the charge length portion is 3l / 4; Sending the test plan of the slope step blasting funnel test to the terminal held by the user; Receive a first test result of the slope step blasting funnel test uploaded by the user based on the terminal held by the user.

7. The method according to claim 1, characterized in that Before obtaining the second test result uploaded by the user based on the terminal held by the user, the method further includes: Obtaining an experimental scheme for the single-hole blasting gap radius determination test, wherein the experimental scheme for the single-hole blasting gap radius determination test includes four groups of single-hole blasting tests, wherein the hole depth of each group of the single-hole blasting tests is w, the hole diameter is 40 mm, the charge length of the blasthole of each group of the single-hole blasting tests is 300 mm, and the charge density of each group of the single-hole blasting tests is ρ; The experimental scheme of the single-hole blasting gap radius determination test is sent to the terminal held by the user.

8. A parameter determination device for deep hole blasting pre-splitting ore body, characterized in that: include: A first calculation module is used to obtain a first test result of the slope step blasting funnel test, calculate a blasting maximum resistance line according to the first test result, and send the blasting maximum resistance line to a terminal held by a user; A second calculation module is used to obtain a second test result uploaded by the user based on the terminal held by the user, and calculate the single-hole blasting gap radius using the second test result, wherein the second test result is obtained by performing a single-hole blasting gap radius measurement test using the blasting maximum resistance line; The determination module is used to obtain blasting pre-splitting ore body information, determine blasting parameters based on the Livingston blasting funnel principle, using the single-hole blasting gap radius and the blasting pre-splitting ore body information, and send the blasting parameters to the terminal held by the user.

9. A device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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