Digital electronic detonator-based blasting vibration prediction analysis method

Abstract

The application discloses a blasting vibration prediction and analysis method based on digital electronic detonators and belongs to the field of blasting of the digital electronic detonators, solves the problems that networking of the digital electronic detonators and ammunition weight cannot be accurately controlled according to actual terrain structures; the blasting vibration prediction and analysis method based on the digital electronic detonators comprises the following steps: step one, surveying a blasting object and a surrounding environment of a target blasting site and recording relevant parameters; step two, establishing a blasting prediction and analysis model according to the relevant parameter records of the target blasting site; step three, networking the digital electronic detonators according to terrain structures of the target blasting object in the blasting prediction and analysis model; and step four, performing data analysis on the networked blasting prediction and analysis model and outputting a blasting vibration prediction result of the blasting object, thereby guiding blasting of the target blasting object by the digital electronic detonators in actual conditions.

Description

Technical Field

[0001] This invention belongs to the field of blasting using digital electronic detonators, specifically a method for predicting and analyzing blasting vibrations based on digital electronic detonators. Background Technology

[0002] Digital electronic detonators are a relatively advanced new product, namely electric detonators that use electronic control modules to control the detonation process. Their technological advantages have been widely recognized, especially with the continuous decline in cost. Their application scope has expanded from the early mining of rare and precious minerals to ordinary ore mining and building demolition.

[0003] However, the blasting vibration process of digital electronic detonators is difficult to control accurately in real-world situations, and the networking of digital electronic detonators and the weight of the ammunition cannot be accurately controlled according to the actual terrain structure.

[0004] Therefore, this invention proposes a method for predicting and analyzing blasting vibrations based on digital electronic detonators. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a method for predicting and analyzing blasting vibrations based on digital electronic detonators. This method solves the problems of network configuration of digital electronic detonators and the inability to accurately control the weight of ammunition according to the actual terrain structure.

[0006] To achieve the above objectives, an embodiment of the present invention proposes a method for predicting and analyzing blasting vibrations based on digital electronic detonators, comprising:

[0007] Step 1: Survey the blasting object and surrounding environment at the target blasting site and record relevant parameters; locate the target blasting site using the Global Positioning System, delineate the blasting area, and obtain information on the type of blasting object, the terrain structure of the blasting object, and surrounding unstable factors;

[0008] Step 2: Based on the relevant parameter records of the target blasting location, establish a blasting prediction and analysis model; draw a three-dimensional spatial map based on the terrain structure of the blasting object, and divide the various components in the three-dimensional spatial map into media according to the type of blasting object as determined by the on-site survey.

[0009] Step 3: In the blasting prediction and analysis model, network the digital electronic detonators according to the terrain structure of the target blasting object; arrange the detonators according to the terrain structure surveyed on site, the detonation line length of the digital electronic detonators, and the scaling factor.

[0010] Step 4: Perform data analysis on the networked blasting prediction and analysis model, and output the blasting vibration prediction results of the blasting object; obtain the blasting safety area of ​​the blasting object by calculating the fragmentation degree and blasting vibration velocity of the blasting object, and guide the blasting of the target object by digital electronic detonators in real-world situations.

[0011] Furthermore, the terrain structure of the target blasting object is detected by intelligent remote control of ground-based drones to establish a three-dimensional spatial map of the ground-based blasting object; the underground ultrasonic detector is used to sense distance to simulate the terrain inside the cave and establish a three-dimensional spatial map of the underground blasting object.

[0012] Furthermore, the types of objects to be blasted include rock, concrete, metal, and other media; the terrain structure of the objects to be blasted includes above-ground and underground terrain; and the surrounding unstable factors include natural conditions and environmental factors.

[0013] Furthermore, an air cavity is set around the three-dimensional spatial map. The air cavity contains various environmental factors, including the expected wind force and wind direction at the predetermined blasting time, the expected temperature range and expected air humidity at the predetermined blasting time, and the electromagnetic boundary setting of the target blasting location.

[0014] Furthermore, the digital electronic detonator includes an initiator, an encoder, and a detonator. The initiator is used to send an initiation command to the encoder, and the encoder is used to set the delayed initiation time of the detonator and to detect the arrangement of adjacent detonators.

[0015] Furthermore, the weight of the explosive carried by the detonator is marked as Wn, where n represents the detonator number, n=1,2…m; the softness of the medium of the blasting target is marked as M. i Where i represents the number of different components of the blasting object, i=1,2……j; the fragmentation degree of the blasting object in the blasting prediction and analysis model is marked as BTi, then Where Si represents the area of ​​component numbered i, Ln represents the borehole depth, α represents the charge coefficient, and γ represents the explosive weight coefficient per meter; according to the calculation formula The fragmentation degree BT of the entire explosive object is obtained;

[0016] The detonation delay time of the corresponding detonator is set by the encoder. After the setting is completed, the detonator sends a detonation command to the corresponding encoder. The encoder activates the detonation switch of the corresponding detonator, and the detonators detonate sequentially according to the set detonation delay time.

[0017] According to the calculation formula Get the distance of the nth detonator to the center of the corresponding blasting component. Explosion vibration velocity over distance , where k and β are both correction coefficients;

[0018] According to the calculation formula Obtain the average blast vibration velocity V of the entire blasting target;

[0019] According to the calculation formula Obtain the safe blasting area of ​​the entire blasting target.

[0020] Furthermore, by automatically adjusting the weight Wn of the explosive carried by the corresponding detonator, the blasting vibration velocity is... and the fragmentation of the explosive object The values ​​must be kept within the standard range for the target object to be blasted.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The blasting vibration prediction and analysis method based on digital electronic detonators described in this invention first surveys the blasting object and surrounding environment at the target blasting location and records relevant parameters; then, it locates the target blasting location using a global positioning system, delineates the blasting area, and obtains the type of blasting object, its terrain structure, and surrounding unstable factors; next, based on the obtained parameter records of the target blasting location, it establishes a blasting prediction and analysis model; it draws a three-dimensional spatial map based on the terrain structure of the blasting object, and divides the various components in the three-dimensional spatial map into media based on the type of blasting object as determined by the on-site survey; finally, it applies the blasting vibration prediction and analysis model... The digital electronic detonators are networked according to the terrain structure of the target blasting object; the detonators are arranged according to the terrain structure surveyed on site, the detonation line length of the digital electronic detonators, and the scaling factor; finally, the data analysis of the networked blasting prediction and analysis model is performed, and the blasting vibration prediction results of the target blasting object are output; the blasting safety area of ​​the target blasting object is obtained by calculating the fragmentation degree and blasting vibration velocity of the target blasting object, guiding the blasting of the target target object with digital electronic detonators in real-world situations; the blasting vibration process of digital electronic detonators under real-world conditions is accurately controlled, and the network of digital electronic detonators and the weight of the ammunition can be accurately controlled according to the actual terrain structure. Attached Figure Description

[0023] Figure 1 This is a flowchart of the method of the present invention. Detailed Implementation

[0024] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1As shown, the method for predicting and analyzing blasting vibrations based on digital electronic detonators includes the following steps:

[0026] Step 1: Survey the blasting target and surrounding environment at the blasting site, and record the relevant parameters;

[0027] Before deciding to blast a target blasting site, it is necessary to survey the location, terrain, and surrounding environment of the target blasting site, locate the target blasting site using the Global Positioning System (GPS), and delineate the blasting area.

[0028] The terrain structure of the target blasting object can be detected by intelligent remote control of the terrain coordinates of the ground drone, thereby establishing a three-dimensional spatial map of the ground blasting object. Alternatively, the terrain inside the cave can be simulated by sensing the distance with an underground ultrasonic detector, thereby establishing a three-dimensional spatial map of the underground blasting object.

[0029] Technical personnel conduct on-site surveys of the target blasting site and its surrounding environment to obtain information on the type of the target blasting object, its terrain structure, and surrounding unstable factors.

[0030] The types of objects to be blasted include rock, concrete, metal and other media, with rock accounting for a large proportion. Other media can include ice, frozen soil, silt, etc.

[0031] The terrain structure of the blasting target includes above-ground and underground terrain. Underground terrain generally includes ore caves, wells, etc.; above-ground terrain generally includes tunnels, buildings, etc.

[0032] Unstable factors in the surrounding area indicate whether there are unstable factors around the target blasting site, such as natural conditions and environmental factors that may affect the blasting vibration operation of digital electronic detonators, which need to be avoided as early as possible.

[0033] Step 2: Based on the relevant parameter records of the target blasting location, establish a blasting prediction and analysis model;

[0034] Draw a three-dimensional spatial diagram based on the terrain structure of the blasting target;

[0035] Based on the type of blasting object determined by on-site survey, the various components in the three-dimensional spatial diagram are classified into media, such as the dielectric constant and mass of metallic materials; technicians can also define the properties of relevant media materials based on the survey data.

[0036] An air cavity is set around the three-dimensional spatial map. The air cavity contains various environmental factors, such as the expected wind force and wind direction at the scheduled blasting time, the expected temperature range and expected air humidity at the scheduled blasting time, and the electromagnetic boundary setting of the target blasting location.

[0037] Step 3: In the blasting prediction and analysis model, network the digital electronic detonators according to the terrain structure of the target blasting object;

[0038] Digital electronic detonators include an initiator, an encoder, and a detonator. The initiator is used to send detonation commands to the encoder, and the encoder is used to set the detonation delay time of the detonator and to detect the arrangement of adjacent detonators.

[0039] In the existing technology, one detonator can manage eight encoders and 1,600 detonators at the same time; the maximum length of each encoder circuit is 2,000m, and the detonation wire between the detonator and the encoder is 1,000m long;

[0040] The detonators are arranged according to the terrain structure surveyed on site, the detonation line length of the digital electronic detonator, and the scaling factor.

[0041] Step 4: Perform data analysis on the networked blasting prediction and analysis model, and output the blasting vibration prediction results of the blasting object;

[0042] The weight of the explosive carried by the detonator is marked as Wn, where n represents the detonator number, n=1,2…m; the softness of the medium being blasted is marked as M. i Where i represents the number of different components of the blasting object, i=1,2……j; the fragmentation degree of the blasting object in the blasting prediction and analysis model is marked as BTi, then Where Si represents the area of ​​component numbered i, Ln represents the borehole depth, α represents the charge coefficient, and γ represents the explosive weight coefficient per meter; according to the calculation formula The fragmentation degree BT of the entire explosive object is obtained;

[0043] The detonation delay time of the corresponding detonator is set by the encoder. After the setting is completed, the detonator sends a detonation command to the corresponding encoder. The encoder activates the detonation switch of the corresponding detonator, and the detonators detonate sequentially according to the set detonation delay time.

[0044] According to the calculation formula Get the distance of the nth detonator to the center of the corresponding blasting component. Explosion vibration velocity over distance , where k and β are both correction coefficients;

[0045] According to the calculation formula Obtain the average blast vibration velocity V of the entire blasting target;

[0046] According to the calculation formula Obtain the safe blasting area of ​​the entire blasting target; based on the above calculation results, guide the blasting of the target target using digital electronic detonators in real-world situations;

[0047] Among them, the blasting vibration velocity and the fragmentation of the explosive object The blasting vibration velocity is controlled within the standard value range of the target object. If it exceeds the standard value range, the weight Wn of the explosive carried by the corresponding detonator is automatically adjusted to control the blasting vibration velocity. and the fragmentation of the explosive object The values ​​must be kept within the standard range for the target object to be blasted.

[0048] The above formulas are all numerical calculations after removing dimensions. The formulas are obtained by software simulation based on a large amount of data and are closest to the real situation. The preset parameters and preset thresholds in the formulas are set by those skilled in the art according to the actual situation or obtained by simulation based on a large amount of data.

[0049] The working principle of this invention is as follows: The blasting vibration prediction and analysis method based on digital electronic detonators described in this invention first surveys the blasting object and its surrounding environment at the target blasting location and records relevant parameters. The target blasting location is then located using a global positioning system (GPS), the blasting area is delineated, and the type of blasting object, its terrain structure, and surrounding unstable factors are obtained. Next, based on the obtained parameter records for the target blasting location, a blasting prediction and analysis model is established. A three-dimensional spatial map is drawn based on the terrain structure of the blasting object, and the various components in the three-dimensional spatial map are divided into media based on the type of blasting object as determined by the on-site survey. Then, digital electronic detonators are networked in the blasting prediction and analysis model according to the terrain structure of the target blasting object. The detonators are arranged according to the on-site surveyed terrain structure, the initiation line length of the digital electronic detonators, and the scaling factor. Finally, the networked blasting prediction and analysis model is analyzed, and the blasting vibration prediction results of the blasting object are output. By calculating the fragmentation degree and blasting vibration velocity of the blasting object, the safe blasting area of ​​the blasting object is obtained, guiding the blasting of the target object using digital electronic detonators in real-world situations.

[0050] In the embodiments provided by this invention, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of the method in this embodiment according to actual needs.

[0051] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A blasting vibration prediction analysis method based on digital electronic detonator, characterized in that, include: Step 1: Survey the blasting target and surrounding environment at the blasting site, and record relevant parameters; specifically including: The target blasting location is located using the Global Positioning System, the blasting area is delineated, and the type of blasting object, the terrain structure of the blasting object, and surrounding unstable factors are obtained. Step Two: Based on the relevant parameter records of the target blasting location, establish a blasting prediction and analysis model; specifically including: A three-dimensional spatial map is drawn based on the terrain structure of the blasting object, and the media of each component in the three-dimensional spatial map is divided according to the type of blasting object as determined by the on-site survey. Step 3: Network the digital electronic detonators in the blasting prediction and analysis model according to the terrain structure of the target blasting object; specifically including: The detonators are arranged according to the terrain structure surveyed on site, the detonation line length of the digital electronic detonator, and the scaling factor. Step 4: Perform data analysis on the networked blasting prediction and analysis model, and output the blasting vibration prediction results for the blasting target; specifically including: The safe blasting area of ​​the blasting object is obtained by calculating the fragmentation degree and blasting vibration velocity of the blasting object, which guides the blasting of the target object by digital electronic detonators in real-world situations. The specific steps for calculating the fragmentation degree and blasting vibration velocity of the blasting object to obtain the safe blasting area are as follows: The weight of the explosive carried by the detonator is marked as Wn, where n represents the detonator number, n=1,2…m; the softness of the medium being blasted is marked as M. i , where i represents the number of different components of the explosion object, i=1, 2...j; If the fragmentation degree of the blasting object in the blasting prediction and analysis model is denoted as BTi, then... Where Si represents the area of ​​component numbered i, Ln represents the borehole depth, α represents the charge coefficient, and γ represents the explosive weight coefficient per meter; according to the calculation formula The fragmentation degree BT of the entire explosive object is obtained; The detonation delay time of the corresponding detonator is set by the encoder. After the setting is completed, the detonator sends a detonation command to the corresponding encoder. The encoder activates the detonation switch of the corresponding detonator, and the detonators detonate sequentially according to the set detonation delay time. According to the calculation formula The distance between the nth detonator and the center of the blasting assembly The blasting vibration velocity k and β are both correction coefficients. According to the calculation formula Obtain the average blast vibration velocity V of the entire blasting target; according to the calculation formula Obtain the safe blasting area of ​​the entire blasting target; By automatically adjusting the weight Wn of the explosive carried by the corresponding detonator so that the blasting vibration velocity and the fragmentation degree of the blasting object is controlled within the standard numerical range of the blasting object.

2. The blasting vibration prediction analysis method based on the digital electronic detonator according to claim 1, characterized in that, The terrain structure of the target blasting object is detected by intelligent remote control of ground-based drones to establish a three-dimensional spatial map of the ground-based blasting object; the underground ultrasonic detector is used to sense distance to simulate the terrain inside the cave and establish a three-dimensional spatial map of the underground blasting object.

3. The blasting vibration prediction analysis method based on the digital electronic detonator according to claim 1, characterized in that, The types of objects to be blasted include rock, concrete, metal, and other media; the terrain structure of the objects to be blasted includes above-ground and underground terrain; and the surrounding unstable factors include natural conditions and environmental factors.

4. The blasting vibration prediction analysis method based on the digital electronic detonator according to claim 1, characterized in that, Step two also includes: setting up air cavities around the three-dimensional spatial map, the air cavities containing various environmental factors, including the expected wind force and wind direction at the predetermined blasting time, the expected temperature range and expected air humidity at the predetermined blasting time, and the electromagnetic boundary setting of the target blasting location.

5. The blasting vibration prediction analysis method based on the digital electronic detonator according to claim 1, characterized in that, Digital electronic detonators include an initiator, an encoder, and a detonator. The initiator sends detonation commands to the encoder, which sets the detonation delay time of the detonator and detects the arrangement of adjacent detonators.

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