Method, device and equipment for determining equal parts of explosive, medium and product

Abstract

The invention discloses a method, device and equipment for determining equal parts of explosive, a medium and a product, and relates to the technical field of engineering structure blasting demolition. The method comprises the following steps: acquiring information data; the information data comprises the total equivalent weight of the explosive and the explosion distance; the explosion distance is the distance from the load bearing point to the explosion center; determining an explosion shock wave overpressure peak value according to the information data; according to the total equivalent weight of the explosive and the overpressure peak value of the explosive shock waves, the overpressure peak value of the superposition coupling explosive shock waves is determined; according to the overpressure peak value of the superposition coupling explosion shock wave and a set function relation, the equal parts of the explosive are determined; the set function relation is determined according to the explosive cost installation coefficient and the relative improvement rate of the explosion shock wave overpressure peak value. According to the method, the plate component explosion damage effect can be improved on blasting demolition, the installation cost is considered, and the economical efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of blasting demolition of engineering structures, and in particular to a method, device, equipment, medium and product for determining the number of equal portions of explosives. Background Art

[0002] Under the premise of a certain fixed explosive equivalent, the explosion effect of a single explosive is limited, and the peak value of the shock wave overpressure concerned in the blasting demolition of engineering structures is also a fixed value. After the reasonable arrangement of multiple explosives, the explosion effect can be improved (Wang Wanyue, Geng Shaobo, Wang Hua, et al. Dynamic response and damage of steel pipe components under near-field multiple explosion loads [J]. Journal of High Pressure Physics, 2022, 36(03): 75-88; Bai C, Zhao X, Yao J, et al. Numerical investigation of the shockwave overpressure fields of multi-sources FAE explosions [J]. Defence Technology, 2021, 17(4): 1168-1177.). At present, the destructive effect of multiple equal parts of explosives is mostly reflected in the software simulation analysis, field test and other stages. The theoretical principle of effect superposition and the specific number of equal parts have not yet received attention and effective solution. Summary of the invention

[0003] The purpose of the present application is to provide a method, device, equipment, medium and product for determining the number of equal portions of explosives, which can improve the explosive damage effect of plate components in blasting demolition, while taking into account the installation cost to improve economy.

[0004] To achieve the above objectives, this application provides the following solutions:

[0005] In a first aspect, the present application provides a method for determining the number of equal parts of explosives, comprising:

[0006] Acquire information data; the information data includes: total explosive equivalent and explosion distance; the explosion distance is the distance from the load point to the explosion center;

[0007] Determine the overpressure peak value of the explosion shock wave according to the information data;

[0008] Determining the overpressure peak value of the superimposed coupled explosion shock wave according to the total equivalent of the explosive and the overpressure peak value of the explosion shock wave;

[0009] The number of equal parts of explosives is determined according to the superimposed coupled explosion shock wave overpressure peak value and a set functional relationship; the set functional relationship is determined according to the relative increase rate of the explosive cost installation coefficient and the explosion shock wave overpressure peak value.

[0010] Optionally, the calculation formula for the explosion shock wave overpressure peak value is:

[0011]

[0012] Among them, ΔP is the peak overpressure of the explosion shock wave; W is the total equivalent of explosives; R is the explosion distance; a1, a2 and a3 are all combination coefficients.

[0013] Optionally, determining the overpressure peak value of the superimposed coupled explosion shock wave according to the total equivalent of the explosive and the overpressure peak value of the explosion shock wave specifically includes:

[0014] Dividing the total equivalent of the explosive into n portions, and determining the explosion shock wave overpressure peak value of each portion of the explosive according to the explosion shock wave overpressure peak value;

[0015] Based on the superposition principle of shock wave effect, after n explosives are detonated simultaneously, the overpressure peak values ​​of the corresponding explosion shock waves are superimposed and coupled to determine the overpressure peak value of the superimposed coupled explosion shock wave.

[0016] Optionally, the calculation formula for the overpressure peak value of the superimposed coupled explosion shock wave is:

[0017]

[0018] Among them, ΔPn' is the peak overpressure of the superimposed coupled explosion shock wave corresponding to n explosives; ΔP1 is the peak overpressure of the explosion shock wave of the first explosive equivalent; ΔP2 is the peak overpressure of the explosion shock wave of the second explosive equivalent; ΔP3 is the peak overpressure of the explosion shock wave of the third explosive equivalent; ΔP n is the peak overpressure of the explosion shock wave of the nth explosive equivalent; W is the total explosive equivalent; R is the explosion distance; a1, a2 and a3 are all combination coefficients.

[0019] Optionally, the expression of the setting function relationship is:

[0020] β = (0.1C-6)%;

[0021] Among them, β is the relative improvement rate; C is the explosive cost installation coefficient.

[0022] Optionally, the calculation formula for the relative improvement rate is:

[0023]

[0024] Among them, β is the relative increase rate; ΔPn' is the peak overpressure of the superimposed coupled explosion shock wave corresponding to n parts of explosives; ΔPn+1' is the peak overpressure of the superimposed coupled explosion shock wave corresponding to n+1 parts of explosives; W is the total equivalent of explosives; R is the explosion distance; a1, a2 and a3 are all combination coefficients.

[0025] In a second aspect, the present application provides a device for determining the number of equal portions of explosives, comprising:

[0026] The information data acquisition module is used to acquire information data; the information data includes: total explosive equivalent and explosion distance; the explosion distance is the distance from the load point to the explosion center;

[0027] An explosion shock wave overpressure peak value determination module, used to determine the explosion shock wave overpressure peak value according to the information data;

[0028] A superposition coupling module, used for determining the overpressure peak value of the superposition coupling explosion shock wave according to the total equivalent of the explosive and the overpressure peak value of the explosion shock wave;

[0029] The module for determining the number of equal portions of explosives is used to determine the number of equal portions of explosives according to the superimposed coupled explosion shock wave overpressure peak value and a set functional relationship; the set functional relationship is determined according to the relative increase rate of the explosive cost installation coefficient and the explosion shock wave overpressure peak value.

[0030] In a third aspect, the present application provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-mentioned method for determining the number of equal portions of explosives.

[0031] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned method for determining the number of equal portions of explosives.

[0032] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the above-mentioned method for determining the number of equal portions of explosives.

[0033] According to the specific embodiments provided in this application, this application has the following technical effects:

[0034] The present application provides a method, device, equipment, medium and product for determining the number of equal portions of explosives, determining the overpressure peak of the explosion shock wave according to information data; determining the overpressure peak of the superimposed coupled explosion shock wave according to the total equivalent of the explosives and the overpressure peak of the explosion shock wave; because under the premise of a fixed explosive equivalent, the explosion effect of a single explosive is limited, and the corresponding overpressure peak of the explosion shock wave is also a fixed value, so by arranging multiple explosives and superimposing the overpressure peak of the coupled explosion shock wave, the explosion damage effect of the plate components can be improved in blasting demolition, that is, the explosion effect can be improved. In addition, the arrangement of multiple explosives, that is, the determination of the number of equal portions of explosives, is determined based on the overpressure peak of the superimposed coupled explosion shock wave and the set function relationship; because the set function relationship is determined based on the relative increase rate of the explosive cost installation coefficient and the overpressure peak of the explosion shock wave, it can take into account the installation cost and improve the economy on this basis. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A flow chart of a method for determining the number of aliquots of explosives;

[0037] Figure 2 When the relative increase rate after adding one portion of explosives to multiple portions is more than 5%, the distance from the load midpoint of the plate-type component to the center of the explosive is 1.5m, and the optimal equal distribution of 1kg explosives on the plate-type component is arranged;

[0038] Figure 3 When the relative increase rate after adding one portion of explosives to multiple portions is more than 8%, the distance from the load midpoint of the plate-type component to the center of the explosives is 1.5m, and the optimal layout diagram of the number of equal portions of 1kg explosives for the plate-type component;

[0039] Figure 4 When the relative increase rate after adding one portion of explosives to multiple portions is more than 12%, the distance from the load midpoint of the plate-type component to the center of the explosives is 2m, and the optimal layout diagram of the number of equal portions of 1kg explosives for the plate-type component;

[0040] Figure 5 When the relative increase rate after adding one more portion of explosive is above 6%, the distance from the loaded midpoint of the plate component to the center of the explosive is 1m, and the optimal equal division layout diagram of 2kg explosive for the plate component. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] In an exemplary embodiment, Figure 1 As shown, a method for determining the number of equal portions of explosives is provided. The method is executed by a computer device, and can be specifically executed by a computer device such as a terminal or a server alone, or by a terminal and a server together. In an embodiment of the present application, the method is applied to a server as an example for explanation, and includes the following steps.

[0044] like Figure 1 As shown, the embodiment of the present application provides a method for determining the number of equal parts of explosives, the method comprising:

[0045] Step 100: Obtain information data. The information data includes: total explosive equivalent and explosion distance; the explosion distance is the distance from the load point to the explosion center.

[0046] Step 200: Determine the overpressure peak value of the explosion shock wave according to the information data.

[0047] Step 300: Determine the overpressure peak value of the superimposed coupled explosion shock wave according to the total explosive equivalent and the overpressure peak value of the explosion shock wave.

[0048] Step 400: Determine the number of equal parts of explosives according to the peak overpressure of the superimposed coupled explosion shock wave and a set functional relationship. The set functional relationship is determined according to the relative increase rate of the explosive cost installation coefficient and the peak overpressure of the explosion shock wave.

[0049] The calculation formula for the overpressure peak of the explosion shock wave is:

[0050]

[0051] Among them, ΔP is the peak overpressure of the explosion shock wave; W is the total equivalent of explosives; R is the explosion distance; a1, a2 and a3 are all combination coefficients.

[0052] In one embodiment, determining the overpressure peak value of the superimposed coupled explosion shock wave according to the total equivalent of explosives and the overpressure peak value of the explosion shock wave specifically includes:

[0053] The total equivalent of explosives is divided into n equal parts, and the peak overpressure of the explosion shock wave of each part of explosives is determined according to the peak overpressure of the explosion shock wave.

[0054] Based on the superposition principle of shock wave effect, after n explosives are detonated simultaneously, the overpressure peak values ​​of the corresponding explosion shock waves are superimposed and coupled to determine the overpressure peak value of the superimposed coupled explosion shock wave.

[0055] The calculation formula for the peak overpressure of superimposed coupled explosion shock wave is:

[0056]

[0057] Among them, ΔPn' is the peak overpressure of the superimposed coupled explosion shock wave corresponding to n explosives; ΔP1 is the peak overpressure of the explosion shock wave of the first explosive equivalent; ΔP2 is the peak overpressure of the explosion shock wave of the second explosive equivalent; ΔP3 is the peak overpressure of the explosion shock wave of the third explosive equivalent; ΔP n is the peak overpressure of the explosion shock wave of the nth explosive equivalent; W is the total explosive equivalent; R is the explosion distance; a1, a2 and a3 are all combination coefficients.

[0058] The expression for setting the functional relationship is:

[0059] β = (0.1C-6)%.

[0060] Among them, β is the relative improvement rate; C is the explosive cost installation coefficient.

[0061] The calculation formula of relative improvement rate is:

[0062]

[0063] Among them, β is the relative increase rate; ΔPn' is the peak overpressure of the superimposed coupled explosion shock wave corresponding to n parts of explosives; ΔPn+1' is the peak overpressure of the superimposed coupled explosion shock wave corresponding to n+1 parts of explosives; W is the total equivalent of explosives; R is the explosion distance; a1, a2 and a3 are all combination coefficients.

[0064] In practical applications, the operation process of the method mentioned in this application can also be as follows:

[0065] Step 1: Determine the unified calculation formula for the overpressure peak value of the explosion shock wave with a total explosive equivalent of W.

[0066] At present, the calculation formula of the explosion shock wave overpressure peak ΔP can be written as a unified formula for the total equivalent of explosives W, explosion distance R and combination coefficients (a1, a2 and a3):

[0067]

[0068] In formula (1), the explosion distance R represents the distance from the load point of interest to the explosion center (in meters), W is the total explosive equivalent (in kilograms), and a1, a2, and a3 are all called combination coefficients. The typical and commonly used combination coefficients are as follows: the engineering design specifications stipulate that the combination coefficients a1, a2, and a3 are 0.084, 0.27, and 0.7, respectively; the a1, a2, and a3 values ​​summarized by Baker based on explosion tests are 0.067, 0.301, and 0.431, respectively.

[0069] Step 2: Determine the formula for the peak overpressure of the explosion shock wave of each portion of explosives after the total explosive equivalent is W and is divided into n portions.

[0070] The total explosive equivalent is W. The explosive is divided into n parts, where n is a positive integer. According to the general formula of formula (1), the first part has an explosive equivalent of m1, the second part has an explosive equivalent of m2, and the nth part has an explosive equivalent of m n The explosion shock wave overpressure peak ΔP1, ΔP2…ΔP n , the formula is:

[0071]

[0072] In formula (2), formula (3)…formula (4), m1, m2…m n are the explosive equivalents (kg) of the first, second, ...nth portions, respectively, where m1+m2+...+m n =W; R1, R2…R n They are all the distances (m) from the calculation point to the explosion centers of the first, second, ...nth portions of explosives.

[0073] Step 3: Determine the formula after superposition and coupling of the explosion shock wave overpressure peak value of each portion of explosives after the total explosive equivalent is W and is divided into n equal portions.

[0074] If the mass of each explosive is the same and the distance from the load point to the explosion center is the same, then R1=R2=…=R n =R, from formula (2), formula (3) ... formula (4), we can know that ΔP1 = ΔP2 = ΔP3 = ... = ΔP n According to the superposition principle of shock wave effect, after n equal parts of explosives are detonated at the target at the same time, the peak overpressure of the explosion shock wave is superimposed and coupled, and the peak overpressure of the superimposed coupled explosion shock wave ΔPn' is:

[0075]

[0076] n is a positive integer, All of them are values ​​greater than 1, which means that after dividing the explosive with a total explosive equivalent of W into n equal parts and placing the explosives at the same distance from the load point, that is, the explosion distance R, and detonating them at the same time, the overpressure value at the same target will be greater than that of a single explosive. In theory, the more parts there are, the better the effect.

[0077] Step 4: Determine the number of equal portions taking into account installation costs.

[0078] When the number of explosives increases, the installation cost will rise. Typical costs include about 10 to 20 yuan for a charge forming tool, 50 to 60 yuan for a sealing package, 30 to 40 yuan for an electronic detonator, 10 to 20 yuan for a transmission line, and 10 to 20 yuan for transportation and maintenance. The total installation cost of each explosive is about 110 to 180 yuan. Therefore, the reasonable balance between installation cost and multiple-shot efficiency is an optimization problem faced in actual blasting demolition.

[0079] Define β as the relative increase rate of the shock wave overpressure peak value of n+1 explosives and n explosives, ΔPn+1' is the overpressure peak value of the superimposed coupled explosion shock wave corresponding to n+1 explosives, ΔPn' is the overpressure peak value of the superimposed coupled explosion shock wave corresponding to n explosives, and the calculation formula of β is:

[0080]

[0081] The applicable range and corresponding relationship of the installation coefficient C of each explosive cost, that is, the relative increase rate β of the explosive cost installation fee and the peak value of the shock wave overpressure are shown in Table 1.

[0082] Table 1 Applicable scope and corresponding relationship between explosive cost installation coefficient and relative improvement rate β

[0083] C (yuan) 110～120 120～130 130～140 140～150 150～160 160～170 170～180 β 5％～6％ 6％～7％ 7％～8％ 8％～9％ 9％～10％ 10％～11％ 11％～12％

[0084] Set the functional relationship as:

[0085] β = (0.1C-6)%.

[0086] Formula (6) is the formula for solving the optimal number of equal portions of explosives for the explosive impact effect of plate components taking into account the installation cost. The optimal number of equal portions of explosives, that is, the numerical value of the number of equal portions of explosives, can be iteratively calculated based on the formula.

[0087] This application is a method for solving the optimal number of equal parts of explosives while taking into account the production cost, which can provide a certain reference for blasting demolition design and can also have a beneficial economic effect in the engineering field. The method mentioned in this application is further explained below in conjunction with specific implementation cases.

[0088] Implementation Case 1

[0089] A plate component is to be blasted, with a total explosive equivalent of 1kg and a distance of 1.5m between the explosive position and the load position of the plate component. The installation cost of the explosives should be taken into account. The installation cost of each explosive is about 110 yuan. The explosives are required to be divided into n+1 portions. When the relative increase rate of the overpressure peak value of the explosion shock wave divided into n portions is lower than 5%, no more portions are required. Find the optimal number of portions that takes into account the installation cost of the explosives at this time.

[0090] Step 1: Write down a unified formula for the peak overpressure of a single explosion shock wave with a total explosive equivalent of 1kg.

[0091] The total equivalent of explosives is 1kg, the distance from the midpoint of the plate-type component to the center of the explosive is the explosion distance R (m), and the combination coefficients a1, a2, and a3 in the engineering design specifications are taken as 0.084, 0.27, and 0.7 respectively. The peak overpressure of the shock wave of a single explosive explosion is:

[0092]

[0093] Step 2: Write down the formula for the peak overpressure of the explosion shock wave of each portion of explosives with a total equivalent of 1kg and divided into b portions.

[0094] Take the total explosive equivalent of 1kg and divide it into b parts, where n is a positive integer. According to formula (7), the first part of explosive equivalent is m1, the second part of explosive equivalent is m2, and the nth part of explosive equivalent is m n The explosion shock wave overpressure peak ΔP1, ΔP2…ΔP n The formula is:

[0095]

[0096]

[0097] In formula (8), formula (9)…formula (10), m1, m2…m n is the explosive equivalent (kg) of the first, second, ...nth portion, m1+m2+...+m n =1; R1, R2…R n They are all the distances (m) from the calculation point to the explosion centers of the first, second, ...nth portions of explosives.

[0098] Step 3: Write down the calculation formula for the overpressure peak of the superimposed coupled explosion shock wave after the total explosive equivalent is 1kg, divided into n equal parts and at the same explosion distance, the superimposed coupled explosion shock wave.

[0099] If the mass of each explosive is the same and the explosion distance to the loading point is the same, R1=R2=…=R n=R, from formula (8), formula (9)…formula (10), we know that ΔP1=ΔP2=ΔP3=…=ΔP n According to the superposition principle of shock wave effect, after n equal parts of explosives are detonated at the target at the same time, the shock wave overpressure peak value is superimposed and coupled, and the superimposed coupled explosion shock wave overpressure peak value ΔPn' is obtained:

[0100]

[0101] Step 4: Determine the number of equal portions considering the relative improvement rate after adding one more portion.

[0102] Assuming the total explosive equivalent is 1 kg, and the distance from the loaded midpoint of the plate component to the center of the explosive is 1.5 m, the calculation formula for the relative improvement rate β can be obtained using formula (12).

[0103]

[0104] After calculation, it is found that the improvement rates when the number of equal parts n is 2, 3, 4, 5, 6, and 7 are 16.7%, 11.1%, 8.5%, 6.9%, 5.9%, and 5.1%, respectively, all of which are greater than 5%, indicating that the relative improvement rate after adding one more portion of explosive is within the appropriate range. When the number of equal parts n is 8 or more, the relative improvement rate will be lower than 4.6%. Since the installation cost of each portion of explosive is 110 yuan, the economic benefit advantage is insufficient, so the optimal number of equal parts for the plate component is 7. The explosives can be divided into Figure 2 Arrangement.

[0105] Implementation Case 2

[0106] The plate component is blasted with a total explosive equivalent of 1kg. The distance between the explosive position and the loaded position of the plate component is 1.5m. The installation cost of the explosive should be taken into account. The installation cost of each explosive is about 140 yuan. The explosive is required to be divided into n+1 portions. When the relative increase rate of the overpressure peak value of the explosion shock wave divided into n portions is lower than 8%, no more portions are required. Find the optimal number of portions that take into account the installation cost of the explosive at this time.

[0107] The difference between Implementation Case 2 and Implementation Case 1 is the relative improvement rate. The method for determining the optimal number of equal portions of explosives is as follows.

[0108] Step 1: Write down a unified formula for the peak overpressure of a single explosion shock wave with a total explosive equivalent of 1kg.

[0109] The total equivalent of explosives is 1kg, the distance from the midpoint of the plate-type component to the center of the explosive is the explosion distance R (m), and the combination coefficients a1, a2, and a3 in the engineering design specifications are taken as 0.084, 0.27, and 0.7 respectively. The peak overpressure of the shock wave of a single explosive explosion is:

[0110]

[0111] Step 2: Write down the formula for the peak overpressure of the explosion shock wave of each portion of explosives with a total equivalent of 1kg and divided into n portions.

[0112] Take the total explosive equivalent of 1kg and divide it into n parts, where n is a positive integer. According to formula (13), the first part has an equivalent of m1, the second part has an equivalent of m2, and the nth part has an equivalent of m n The explosion shock wave overpressure peak ΔP1, ΔP2…ΔP n The formula is:

[0113]

[0114] In formula (14), formula (15)…formula (16), m1, m2…m n is the explosive equivalent (kg) of the first, second, ...nth portion, m1+m2+...+m n =1; R1, R2…R n They are all the distances (m) from the calculation point to the explosion centers of the first, second, ...nth portions of explosives.

[0115] Step 3: Write down the formula for the superposition and coupling of the overpressure peak value of the explosion shock wave of each portion of explosives with a total amount of 1kg of explosive equivalent divided into n equal portions.

[0116] If the mass of each explosive is the same and the explosion distance to the loading point is the same, R1=R2=…=R n =R, from formula (14), formula (15)…formula (16), we know that ΔP1=ΔP2=ΔP3=…=ΔP n According to the superposition principle of shock wave effect, after n equal parts of explosives are detonated at the target at the same time, the shock wave overpressure peak value is superimposed and coupled, and the superimposed coupled explosion shock wave overpressure peak value ΔPn' is obtained:

[0117]

[0118] Step 4: Determine the number of equal portions considering the relative improvement rate after adding one more portion.

[0119] Assuming the total explosive equivalent is 1 kg, and the distance from the loaded midpoint of the plate component to the center of the explosive is 1.5 m, the calculation formula for the relative improvement rate β can be obtained using formula (18).

[0120]

[0121] After calculation, it is found that the improvement rate when the number of equal parts n is 2, 3 and 4 is 16.7%, 11.1% and 8.5% respectively, all of which are greater than 8%, indicating that the relative improvement rate after adding one more portion of explosive is within the appropriate range. When the number of equal parts n is 5 or more, the relative improvement rate will be lower than 6.9%. Since the installation cost of each portion of explosive is 140 yuan, the economic benefit is not enough, so the optimal number of equal parts for the plate component is 4. The explosive can be divided into Figure 3 Arrangement.

[0122] Implementation Case 3

[0123] The plate component needs to be blasted. The total equivalent of explosives is 1kg. The distance between the position of the explosives and the load position of the plate component is 2m. The installation cost of the explosives should be taken into account. The installation cost of each explosive is about 180 yuan. The explosives are required to be divided into n+1 parts. When the relative increase rate of the overpressure peak value of the explosion shock wave divided into n parts is lower than 12%, no more parts are required. Find the optimal number of parts that take into account the installation cost of the explosives at this time.

[0124] The difference between Implementation Case 3 and Implementation Case 1 and Implementation Case 2 is that when the relative improvement rate is different, the distance from the midpoint of the load of the plate component to the center of the explosive is also different. The method for determining the number of equal portions of the explosive is as follows.

[0125] Step 1: Write down a unified formula for the peak overpressure of a single explosion shock wave with a total explosive equivalent of 1kg.

[0126] The total equivalent of explosives is 1kg, the distance from the midpoint of the plate-type component to the center of the explosive is the explosion distance R (m), and the combination coefficients a1, a2, and a3 in the engineering design specifications are taken as 0.084, 0.27, and 0.7 respectively. The peak overpressure of the shock wave of a single explosive explosion is:

[0127]

[0128] Step 2: Write down the calculation formula for the peak overpressure of the explosion shock wave of each portion of explosives with a total equivalent of 1kg and divided into n portions.

[0129] Take the total equivalent of 1kg of explosives and divide it into n parts, where n is a positive integer. According to formula (19), the first part has an equivalent of m1, the second part has an equivalent of m2, and the nth part has an equivalent of m n The explosion shock wave overpressure peak ΔP1, ΔP2…ΔP n The formula is:

[0130]

[0131] In formula (20), formula (21)…formula (22), m1, m2…m n is the explosive equivalent (kg) of the first, second, ...nth portion, m1+m2+...+mn =1; R1, R2…R n They are all the distances (m) from the calculation point to the explosion centers of the first, second, ...nth portions of explosives.

[0132] Step 3: Write down the formula for the superposition and coupling of the overpressure peak value of the explosion shock wave of each portion of explosive with a total equivalent of 1kg and divided into n equal portions.

[0133] If the mass of each explosive is the same and the explosion distance to the loading point is the same, R1=R2=…=R n =R, from formula (20), formula (21)…formula (22) we know that ΔP1=ΔP2=ΔP3=…=ΔP n According to the superposition principle of shock wave effect, after n equal parts of explosives are detonated at the target at the same time, the shock wave overpressure peak value is superimposed and coupled, and the superimposed coupled explosion shock wave overpressure peak value ΔPn' is obtained:

[0134]

[0135] Step 4: Determine the number of equal portions considering the relative improvement rate after adding one more portion.

[0136] Assuming the total explosive equivalent is 1 kg, and the distance from the loaded midpoint of the plate component to the center of the explosive is 2 m, the calculation formula for the relative improvement rate β can be obtained using formula (24).

[0137]

[0138] The calculation shows that the improvement rate when the number of equal parts n is 2 and 3 is 21.4% and 13.8% respectively, both of which are greater than 12%, indicating that the relative improvement rate after adding one more portion of explosive is within the appropriate range. When the number of equal parts n is 4 or more, the relative improvement rate will be lower than 10.4%. Since the installation cost of each portion of explosive is 180 yuan, the economic benefit is not enough, so the optimal number of equal parts for the plate component is 3. The explosive can be divided into Figure 4 Arrangement.

[0139] Implementation Case 4

[0140] The plate component needs to be blasted. The total equivalent of explosives is 2kg. The distance between the position of the explosives and the load position of the plate component is 1m. The installation cost of the explosives should be taken into account. The installation cost of each explosive is about 120 yuan. The explosives are required to be divided into n+1 parts. The relative increase rate of the peak overpressure of the explosion shock wave divided into n parts is less than 5%. No more parts are required. Find the optimal number of parts that take into account the installation cost of the explosives at this time.

[0141] The difference between Implementation Case 4 and Implementation Case 1, Implementation Case 2 and Implementation Case 3 is that when the relative improvement rate and the distance from the midpoint of the load of the plate component to the center of the explosive are different, the mass of the explosive is also different. The method for determining the number of equal portions of the explosive is as follows.

[0142] Step 1: Write down a unified formula for the peak overpressure of a single explosion shock wave with a total explosive equivalent of 2kg.

[0143] The total equivalent of explosives is 2kg, the distance from the midpoint of the plate-type component to the center of the explosive is the explosion distance R (m), and the combination coefficients a1, a2, and a3 in the engineering design specifications are taken as 0.084, 0.27, and 0.7 respectively. The calculation formula for the overpressure peak value of the shock wave of a single explosive explosion is:

[0144]

[0145] Step 2: Write down the formula for calculating the peak overpressure of the explosion shock wave of each portion of explosives with a total equivalent of 2kg divided into n portions.

[0146] Take the total equivalent of 2kg of explosives and divide it into n parts, where n is a positive integer. According to formula (25), the first part has an equivalent of m1, the second part has an equivalent of m2, and the nth part has an equivalent of m n The explosion shock wave overpressure peak ΔP1, ΔP2…ΔP n The formula is:

[0147]

[0148] In formula (26), formula (27)…formula (28), m1, m2…m n is the explosive equivalent (kg) of the first, second, ...nth portion, m1+m2+...+m n =2; R1, R2…R n They are all the distances (m) from the calculation point to the explosion centers of the first, second, ...nth portions of explosives.

[0149] Step 3: Write down the formula for the superposition and coupling of the overpressure peak value of the explosion shock wave of each portion of explosives with a total equivalent of 2kg and divided into n equal portions.

[0150] If the mass of each explosive is the same and the explosion distance to the loading point is the same, R1=R2=…=R n =R, from formula (26), formula (27)…formula (28) we know that ΔP1=ΔP2=ΔP3=…=ΔP n According to the superposition principle of shock wave effect, after n equal parts of explosives are detonated at the target at the same time, the shock wave overpressure peak value is superimposed and coupled, and the superimposed coupled explosion shock wave overpressure peak value ΔPn' is obtained:

[0151]

[0152] Step 4: Determine the number of equal portions considering the relative improvement rate after adding one more portion.

[0153] Assuming the total explosive equivalent is 2 kg, and the distance from the loaded midpoint of the plate component to the center of the explosive is 1 m, the calculation formula for the relative enhancement rate β can be obtained using formula (30).

[0154]

[0155] The calculation shows that the improvement rate when the number of equal parts n is 2 and 3 is 9% and 6.2% respectively, both of which are greater than 6%, indicating that the relative improvement rate after adding one more portion of explosive is within the appropriate range. When the number of equal parts n is 4 or more, the relative improvement rate will be lower than 4.9%. Since the installation cost of each portion of explosive is 120 yuan, the economic benefit is not enough, so the optimal number of equal parts for the plate component is 3. The explosive can be divided into Figure 5 Arrangement.

[0156] Therefore, the present application can determine different numbers of explosive equal portions according to the specific ideal increase rate, explosive equivalent and explosion distance.

[0157] Figure 2-Figure 5 Among them, numbers 1 to 7 are all explosives with an equivalent weight of 0.143 kg, number 8 is a plate component of 2000mm×2000mm×40mm; numbers 9 to 12 are all explosives with an equivalent weight of 0.25 kg, numbers 13 to 15 are all explosives with an equivalent weight of 0.33 kg, and numbers 16 to 18 are all explosives with an equivalent weight of 0.5 kg.

[0158] Based on the same inventive concept, the embodiment of the present application also provides a device for determining the number of equal portions of explosives for implementing the method for determining the number of equal portions of explosives involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more embodiments of the device for determining the number of equal portions of explosives provided below can refer to the limitations of the method for determining the number of equal portions of explosives above, and will not be repeated here.

[0159] In an exemplary embodiment, a device for determining the number of explosive aliquots is provided, comprising:

[0160] The information data acquisition module is used to acquire information data; the information data includes: total explosive equivalent and explosion distance; the explosion distance is the distance from the load point to the explosion center.

[0161] The explosion shock wave overpressure peak value determination module is used to determine the explosion shock wave overpressure peak value according to the information data.

[0162] The superposition coupling module is used to determine the overpressure peak value of the superposition coupling explosion shock wave according to the total equivalent of the explosive and the overpressure peak value of the explosion shock wave.

[0163] The module for determining the number of equal portions of explosives is used to determine the number of equal portions of explosives according to the overpressure peak value of the superimposed coupled explosion shock wave and a set functional relationship; the set functional relationship is determined according to the relative increase rate of the explosive cost installation coefficient and the overpressure peak value of the explosion shock wave.

[0164] In an exemplary embodiment, a computer device is provided, which may be a server or a terminal. The computer device includes a processor, a memory, an input / output interface (I / O for short) and a communication interface. The processor, the memory and the input / output interface are connected via a system bus, and the communication interface is connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a method for determining the number of equal portions of explosives is implemented.

[0165] Those skilled in the art can understand that the structure of the computer device is only a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those described above, or combine certain components, or have a different arrangement of components. In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0166] In an exemplary embodiment, a computer-readable storage medium is provided, storing a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0167] In an exemplary embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0168] In this application, all actions to obtain signals, information or data are carried out in compliance with the relevant data protection laws and policies of the country where they are located and with the authorization of the corresponding device owner. 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, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0169] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0170] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but is not limited thereto.

[0171] 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.

[0172] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A method for determining the number of equal parts of explosives, characterized in that: The method for determining the number of equal parts of explosive comprises: Acquire information data; the information data includes: total explosive equivalent and explosion distance; the explosion distance is the distance from the load point to the explosion center; Determine the overpressure peak value of the explosion shock wave according to the information data; Determining the overpressure peak value of the superimposed coupled explosion shock wave according to the total equivalent of the explosive and the overpressure peak value of the explosion shock wave; The number of equal parts of explosives is determined according to the superimposed coupled explosion shock wave overpressure peak value and a set functional relationship; the set functional relationship is determined according to the relative increase rate of the explosive cost installation coefficient and the explosion shock wave overpressure peak value.

2. The method for determining the number of equal parts of explosives according to claim 1, characterized in that: The calculation formula of the explosion shock wave overpressure peak value is: Among them, ΔP is the peak overpressure of the explosion shock wave; Q is the total equivalent of explosives; R is the explosion distance; a1, a2 and a3 are all combination coefficients.

3. The method for determining the number of equal parts of explosives according to claim 1, characterized in that: Determining the overpressure peak value of the superimposed coupled explosion shock wave according to the total equivalent of the explosive and the overpressure peak value of the explosion shock wave specifically includes: Dividing the total equivalent of the explosive into n portions, and determining the explosion shock wave overpressure peak value of each portion of the explosive according to the explosion shock wave overpressure peak value; Based on the superposition principle of shock wave effect, after n explosives are detonated simultaneously, the overpressure peak values ​​of the corresponding explosion shock waves are superimposed and coupled to determine the overpressure peak value of the superimposed coupled explosion shock wave.

4. The method for determining the number of equal parts of explosives according to claim 3, characterized in that: The calculation formula of the overpressure peak value of the superimposed coupled explosion shock wave is: Among them, ΔPn' is the peak overpressure of the superimposed coupled explosion shock wave corresponding to n explosives; ΔP1 is the peak overpressure of the explosion shock wave of the first explosive equivalent; ΔP2 is the peak overpressure of the explosion shock wave of the second explosive equivalent; ΔP3 is the peak overpressure of the explosion shock wave of the third explosive equivalent; ΔP n is the peak overpressure of the explosion shock wave of the nth explosive equivalent; W is the total explosive equivalent; R is the explosion distance; a1, a2 and a3 are all combination coefficients.

5. The method for determining the number of equal parts of explosives according to claim 1, characterized in that: The expression of the setting function relationship is: β＝(0.1C-6)％； Among them, β is the relative improvement rate; C is the explosive cost installation coefficient.

6. The method for determining the number of equal parts of explosives according to claim 1, characterized in that: The calculation formula of relative improvement rate is: Among them, β is the relative increase rate; ΔPn' is the peak overpressure of the superimposed coupled explosion shock wave corresponding to n parts of explosives; ΔPn+1' is the peak overpressure of the superimposed coupled explosion shock wave corresponding to n+1 parts of explosives; W is the total equivalent of explosives; R is the explosion distance; a1, a2 and a3 are all combination coefficients.

7. A device for determining the number of equal portions of explosives, characterized in that: The device for determining the number of explosive equal parts comprises: The information data acquisition module is used to acquire information data; the information data includes: total explosive equivalent and explosion distance; the explosion distance is the distance from the load point to the explosion center; An explosion shock wave overpressure peak value determination module, used to determine the explosion shock wave overpressure peak value according to the information data; A superposition coupling module, used for determining the overpressure peak value of the superposition coupling explosion shock wave according to the total equivalent of the explosive and the overpressure peak value of the explosion shock wave; The module for determining the number of equal portions of explosives is used to determine the number of equal portions of explosives according to the superimposed coupled explosion shock wave overpressure peak value and a set functional relationship; the set functional relationship is determined according to the relative increase rate of the explosive cost installation coefficient and the explosion shock wave overpressure peak value.

8. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method for determining the number of equal portions of explosives according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for determining the number of equal portions of explosives according to any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method for determining the number of equal portions of explosives according to any one of claims 1 to 6 is implemented.

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