WO2014026603A1 - Application method of digital electronic detonator - Google Patents

Description

 Digital electronic detonator application method  Technical field

 The invention relates to the technical field of application of pyrotechnics, in particular to a method for applying digital electronic detonators.

Background technique

In recent decades, with the vigorous development of various construction projects in China, engineering blasting technology has been widely used in mining, railway, transportation, water conservancy and urban reconstruction and expansion projects, and has achieved many major engineering achievements, new blasting theory and Blasting methods have also emerged, and higher and higher requirements have been placed on blasting equipment. Digital electronic detonator meets the safety, reliability and accuracy of engineering blasting with its unique high safety, high reliability, high delay precision, good production safety and engineering blasting effect. The high requirements are hailed as a technological revolution in blasting technology.

When digital electronic detonators are used in blasting engineering, the blastholes and detonators are often numbered separately. When constructing a detonator detonation network, it is usually necessary to compare the boring drawings with each hole, and to number each blasthole and detonator one by one. The number (that is, the feature code corresponding to the detonator) and the delay time of the detonator correspond to each other. The application of this application method has the following drawbacks:

 ( 1 Because of the need to complete one-to-one correspondence of three aspects of information for each detonator one by one, the construction efficiency is low, which has a great impact on the progress of the project.

 ( 2 Because the engineering site is complex and variable, the above-mentioned cloth hole drawings often have incomplete correspondence with the actual project site. Therefore, when the construction is carried out according to the blasthole number marked on the drawing, the actual position of the blasthole at the project site may not correspond to the blasthole position on the drawing, which brings inconvenience to the construction and greatly increases the error during the construction process. The possibility, that is, the correspondence between the blasthole number, the detonator number, and the detonator delay time is wrong, which may affect the blasting effect and may even cause serious safety accidents.

Summary of the invention

The technical purpose of the present invention is to solve the above drawbacks of the prior art, and to provide an application method of a digital electronic detonator, aiming at improving the on-site construction efficiency on the premise of ensuring the blasting effect, and making the engineering application of the digital electronic detonator simple and efficient. And improve the construction accuracy, thus greatly reducing the possibility of safety hazards caused by construction errors.

 The technical purpose of the present invention is achieved by the following technical solutions:

 The application method of the present invention includes the following steps in any order:

 In the grouping step, according to the position of each blasthole in the blasting area in the blasting area, the blastholes are grouped, and the group number is set for each group of blastholes;

The detonator registration step assigns a group number to each digital electronic detonator and a group number of the detonator in the group, so that the feature code of each digital electronic detonator corresponds to a certain group number and group number;

The delay time calculation step is performed according to the set value of the delay interval parameter, and the calculation formula of the detonator delay time is calculated, and the delay time value of each digital electronic detonator is calculated.

The technical solution of the present invention introduces the concept of 'group'. On the one hand, each blasthole in the blasting area is divided into groups according to its position in the blasting area, and a group number is set for each group of blasting holes. On the other hand, when performing detonator registration, the concept of 'group' is also introduced, and each group of digital electronic detonators is assigned a group number and the group number of the detonator in the group, so that the detonator's feature code and a certain group number are The group number corresponds to each other. Thus, by the concept of 'group number', the feature codes of the blasthole and the digital electronic detonator are corresponding in units of 'group'. When performing delay time calculation, detonator loading, network detection, troubleshooting, etc., it can also be performed in units of 'group'. Such a technical solution plays a role of zeroing and rectifying, and transforms the one-to-one correspondence process in the prior art with a single-shot detonator into a corresponding process in units of 'groups', on the one hand avoiding the commonly used digital electronic The construction inefficiency caused by the detonator application method has largely realized the simplicity and high efficiency of digital electronic detonator engineering application; on the other hand, it has effectively reduced the possibility of operational errors in the process of performing this correspondence. Sex, which helps to reduce the probability of occurrence of a security incident. Since the grouping of the blastholes in the technical solution of the present invention is divided according to the position of the blasthole in the blasting area, this technical solution can also ensure that the blasting effect is not affected.

DRAWINGS

 Figure 1 is a schematic view of a blasting hole of a tunneling tunneling project;

 Figure 2 is a schematic view of the grouping of the blastholes of the project shown in Figure 1;

 Figure 3 is a schematic diagram of the design of the extension time of the project shown in Figure 1;

 Figure 4 is a schematic view of the blasting hole of a certain open-air step project;

 Figure 5 is a schematic view of the grouping of the blastholes of the project shown in Figure 4;

 Figure 6 is a schematic diagram of the design of the extension time of the project shown in Figure 4;

 Figure 7 is a schematic view of a blasting blasthole of another open-air step project;

 Figure 8 is an exploded view of a blasthole in the project shown in Figure 7;

 Figure 9 is a schematic diagram of the grouping of the blastholes of the project shown in Figure 7;

 Figure 10 is a schematic diagram of the design of the extension time of the project shown in Figure 7;

 Figure 11 is a schematic view of the blasting hole of a well roadway excavation project;

 Figure 12 is a schematic view showing the grouping of the blastholes of the project shown in Figure 11;

 Figure 13 is a schematic diagram of the delay time design of the project shown in Figure 11.

 detailed description

 The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

 The invention provides a method for applying a digital electronic detonator, comprising the following steps:

 In the grouping step, according to the position of each blasthole in the blasting area in the blasting area, the blastholes are grouped, and the group number is set for each group of blastholes;

 Detonator registration step, assigning a group number to each digital electronic detonator and the group number of the detonator in the group So that the feature code of each digital electronic detonator corresponds to a certain group number and group number;

 Deferred time calculation step, according to the delay interval parameter The set value, the detonator delay time calculation formula is executed, and the delay time value of each digital electronic detonator is calculated.

The order of execution of the above grouping step, detonator registration step and deferred time calculation step can be flexibly adjusted according to the type of project and the needs of the construction site. Since these different implementations introduce the concept of 'group', they can solve the inefficiency problem of the existing application methods, and improve the accuracy of construction, and greatly reduce the safety hazards of engineering blasting.

On the basis of these three steps, the network detection step can also be performed after the detonator registration step is completed; the network detection step can be performed according to a predetermined procedure, or can be repeated at any time after the detonator registration is completed and before the detonator is detonated. In order to understand the integrity of the detonator and the reliability of the connection, and ensure the reliability of the blasting according to the actual needs of the project. After the completion of the delay time calculation step, the delay time setting step may also be performed, and the calculated delay time of each detonator is respectively written into each detonator; the deferred time setting of each detonator may also be set in each round. The detonator's delay time is calculated immediately after completion.

 The following is a detailed description of the grouping step, the detonator registration step, and the implementation of the delay time calculation step in combination with the engineering practice.

 ( 1 Grouping step: When performing the blasting design, the blastholes may be grouped according to the position of each blasthole in the blasting area in the blasting area. The position of each blasthole in the blasting area determines the role of the blasthole in blasting. For example, in a tunnel excavation project, the blastholes located in the middle or lower-middle of the excavation section are often first detonated to form more free surfaces, and the blasting is spread from the center to the periphery. So in a similar picture In the tunneling project shown in Figure 1, it can be grouped in a ring form, as shown in Figure 2. For another example, in an open bench blasting project similar to that shown in Figure 4, the blastholes can be grouped in rows or columns, such as Figure 5. Shown. After grouping the blastholes, set the group number for each set of blastholes to identify the group to which each blasthole belongs. In addition, the hole number of the hole in the group can also be set for each hole in each group, for example, Figure 5 Shown. If a blasthole is to be filled with more than one detonator, and each detonator corresponds to a detonation point, the number of the detonation point in the blasthole may also be set for each detonation point in each blasthole, for example 9 is shown.

 ( 2 Detonator registration step: the feature code of each digital electronic detonator is matched with the group number of the blasthole, and the detonator is assigned the group number of the detonator in the group, so that the characteristic code of each digital electronic detonator is uniquely determined. The ground corresponds to a certain group number and the group number within the group. The characteristic code of the detonator may be an identity code built in the detonator, which is read by a device having an identity code reading function; the characteristic code of the detonator may also be an identification information code such as a bar code external to the detonator, and is read by having the identification information code. Functional device reading. It should be noted that the feature codes of different detonators may correspond to the same group number, and may further correspond to the same group number, depending on the type of engineering and the blasting design.

(3) Deferred time calculation step: According to the set value of the delay interval parameter, the calculation formula of the detonator delay time is executed, and the delay time value of each digital electronic detonator is calculated. The delay interval parameter may include a parameter indicating an extension interval between two groups of adjacent group numbers - an inter-group delay interval t _j , and a parameter indicating an extension interval between detonators of adjacent group numbers in the same group - within the group Delay interval t _i . If a blast hole with a plurality of detonation points, the interval parameter may further include an extension parameters represent the same extension number between the initiation point spaced holes adjacent blast hole - Extended bore interval t _k. By implementing the appropriate detonator delay time calculation formula, the delay time value of each digital electronic detonator can be calculated. The selection and setting of the delay interval parameters and the design of the detonator delay time calculation formula can be determined according to different engineering types and different blasting requirements.

The execution sequence of the grouping step, the detonator registration step, and the extension time calculation step need not be strictly required, and can be adjusted according to different types of projects, different situations on the construction site, and different requirements of the blasting effect, and the invention can be well achieved. The technical purpose is to improve the efficiency and accuracy of on-site construction on the basis of ensuring the blasting effect, and make the engineering application of digital electronic detonator simple, efficient and accurate.

For example, grouping, detonator registration, and extension time calculation steps can be performed in order to improve construction efficiency. It is also possible to calculate the deferred time value of each detonator after the grouping, and then perform the detonator registration step; if such a method is used, in addition to the detonator allocation group number and the detonator group in the group In addition to the serial number, the detonator delay time setting step can also be directly performed, and the calculated delay time value is written into the corresponding detonator.

At the construction site, you can also assign a group number to the detonator, and mark the group number in a prominent position for each detonator, for example, at the end of the detonator foot line. When the detonator registration step is performed, the group number marked at the end of the foot line can be assigned to the detonator, and the allocation of the group number can also be deduced by analogy. When the grouping step is performed, the holes are grouped according to the positions of the holes in the blasting area, and the group number is set for each group of holes, and the group number set for the hole is corresponding to the group number assigned to the detonator. When the delay time calculation step is performed, the delay time value of each detonator can also be calculated by using the delay interval parameters such as the inter-group delay interval and the intra-group delay interval. Similarly, in this case, the order of execution of the grouping step and the delay time calculation step also does not affect the achievement of the technical purpose.

Based on the concept of 'group', it is also possible to calculate and determine the delay time value of each detonator according to the requirements of the blasting effect in engineering practice, and then group the blastholes or register the detonators.

In summary, the technical solution of the present invention introduces the concept of 'group', which can achieve construction efficiency and construction by combining several steps of grouping and numbering of blastholes, registration of detonators, and calculation of delay time values. The accuracy has been greatly improved.

 The calculation formula of the detonator delay time mentioned in the above delay time calculation step can be expressed as the following form:

T _det (N, n(N))=T _det (N-1, n _max (N-1))+t _j (N-1, N)+t _i (N)*(n(N)-1 ) ( 1 )

Where N is a natural number increasing sequentially, indicating the group number corresponding to the digital electronic detonator, n(N) is a natural number sequentially increasing, indicating the group number of the digital electronic detonator in the Nth group, T _det (N, n (N)) indicates the delay time value of the nth digital electronic detonator in group N, T _det (N-1, n _max (N-1)) indicates the extension of all digital electronic detonators in group (N-1) The maximum value of the time value, t _j (N-1, N) represents the inter-group delay interval between the N-1th group and the Nth group t _j , t _i (N) represents the intra-group delay interval of the Nth group t _i .

The above formula (1) is especially suitable for general tunneling projects. The delay time value of a digital electronic detonator is obtained by adding three values: the delay time value of the last set of detonated detonators, and the delay interval between the last group and the group t _j The value of the detonator, the deferred time increment value within the group. The increment value of the detonator in the group is calculated from the group number of the detonator in the group and the value of the delay interval t _i in the group.

It should be specially stated that when calculating the delay time of the detonator with group number 1, it is considered that the deferred time value of the last detonated detonator and the deferred interval t _j between the group and the group are both 0. That is: T _det (N-1, n _max (N-1)) = 0, t _j (N-1, N) = 0, therefore, when N = 1, T _det (N, n (N)) = t _i (N)*(n(N)-1) .

 The detonator delay time calculation formula can also be expressed as the following form:

T _det (N, n(N))=T _det (N-1, n _min (N-1))+t _j (N-1, N)+t _i (N)*(n(N)-1 ) ( 2 )

Where N is a natural number increasing sequentially, indicating the group number corresponding to the digital electronic detonator, n(N) is a natural number sequentially increasing, indicating the group number of the digital electronic detonator in the Nth group, T _det (N, n (N)) indicates the extension time value of the nth digital electronic detonator in Group N, T _det (N-1, n _min (N-1)) indicates the extension of all digital electronic detonators in the (N-1) group The minimum value of the time value, t _j (N-1, N) represents the inter-group delay interval between the N-1th group and the Nth group t _j , t _i (N) represents the intra-group delay interval of the Nth group t _i .

The above calculation formula (2) is especially suitable for general open-air step blasting engineering. The delay time value of a digital electronic detonator is obtained by adding three values: the delay time value of the first set of detonated detonators, and the delay interval between the last group and the group. The value of _j , the delta value of the detonator in this group. The increment value of the detonator in the group is calculated from the group number of the detonator in the group and the value of the delay interval t _i in the group.

It should be specially stated that when calculating the delay time of the detonator with group number 1, it is considered that the delay time value of the detonator of the first group and the deferral interval t _j of the group of the previous group and the group are both 0. , ie: T _det (N-1, n _min (N-1)) = 0, t _j (N-1, N) = 0, therefore, when N = 1, T _det (N, n (N) ) = t _i (N)*(n(N)-1) .

When the application method of the present invention is applied to tunnel blasting blasting, the order of detonation of each blasthole in the same group may not be strictly required, that is, the hole number of each blasthole in the same group and the group of detonators in the group. The serial number does not need a one-to-one correspondence. In this case, when loading the detonator into the blasthole, it is only necessary to ensure that the detonator corresponds to the group number of the blasthole, which can also improve the efficiency of the detonator loading, thereby further improving the digital electronic detonator as a whole. Construction efficiency.

When the application method of the present invention is applied to open-air step blasting, the initiation sequence of each blasthole in the same group often requires strict requirements, that is, the hole number of each blasthole in the same group and the group number of each detonator in the group are required. One-to-one correspondence. If only one detonator is installed in the same blasthole, it is necessary to ensure that each detonator is loaded into the blasthole corresponding to its group number when loading. If multiple detonators need to be loaded in the same blasthole, the hole number should be set for the detonation point where each detonator is located in each blasthole. At the same time, when performing the detonator registration step, Each detonator is assigned a hole number such that the feature code of each detonator corresponds to each hole number one by one. In this case, in addition to ensuring that the group number of the detonator corresponds to the hole number of the blasthole, it is also necessary to ensure that each detonator is loaded to the detonation point corresponding to the hole number.

For the case where there are multiple initiating points in the same blasthole, the deferred interval parameter of the present invention may include the same blasthole in addition to the inter-group delay interval t _j and the intra-group delay interval t _i of the aforementioned groups. The parameter of the delay interval between adjacent initiating points - the intra-hole delay interval t _k . And, for this case, the detonator delay time calculation formula can be expressed as the following form:

T _det (N, n(N), m(n(N)))=T _det (N-1, n _min (N-1), m _min (n(N))) +t _j (N-1 , N)+t _i (N)*(n(N)-1)+t _k (n(N))*(m(n(N))-1) ( 3 )

Where N is a natural number increasing sequentially, indicating the group number corresponding to the digital electronic detonator, n(N) is a natural number sequentially increasing, indicating the group number of the digital electronic detonator in the Nth group, m(n(N) ) is a sequence of natural numbers indicating the number of holes in the nth (N)th hole of the Nth group, T _det (N, n(N), m(n(N))) represents the Nth group The delay time value of the digital electronic detonator with the n(N) hole number m(n(N)), T _det (N-1, n _min (N-1), m _min (n(N)) ) represents the minimum of the delay time values of all digital electronic detonators in the first hole of group (N-1), t _j (N-1, N) represents between group N-1 and group N The inter-group delay interval t _j , t _i (N) represents the intra-group delay interval t _i , t _k (n(N)) of the N-th group represents the intra-hole delay interval t in the nth (N)th hole of the Nth group _k .

According to the above formula (3), the delay time value of a digital electronic detonator is obtained by adding four values, which are: the delay time value of the first detonator in the first group, The value of the delay interval t _j between the previous group and the group of the group, the incremental value of the delay time of the hole in the group, and the incremental value of the delay time of the detonator in the blasthole. Wherein, the increment value of the delay time of the hole in the group is calculated from the hole number of the blast hole in the group and the value of the delay interval t _i in the group, and the delay time of the detonator in the blast hole The incremental value is calculated from the hole number of the detonator in the blasthole and the value of the delay interval t _k in the bore of the blasthole.

It should be specially stated that when the deferred time of the detonator with group number 1 and group number 1 is calculated, the deferred time value of the first detonator in the first group is considered to be the deferred time value of the first detonator in the first group. The value of the inter-group delay interval t _j is 0, namely: T _det (N-1, n _min (N-1), m _min (n(N)))=0, t _j (N-1, N) =0. Therefore, when N=1 and n(N)=1, T _det (N, n(N), m(n(N)))=t _k (n(N))*(m(n(N) ))-1) .

Figure 1 shows the blasting hole of a tunneling project. Figure 2 shows a schematic diagram of the grouping of some of the holes in the project. The numbers in the figure represent the group numbers corresponding to the holes. Figure 3 shows the corresponding delay time design, the number in the figure represents the delay time value corresponding to the hole. The design of the extension time of the project is shown in Table 1: The inter-group delay interval t _j (1, 2) between the second group and the first group is taken as 50 ms, and the groups from the tenth to the seventh group The inter-group delay interval t _j (7, 8), t _j (8, 9), and t _j (9, 10) are both taken as 25 ms; and, the first group's intra-group delay interval t _i ( The value of 1) is taken as 3ms, and the values of the delay intervals t _i (2) , t _i (8) , and t _i (9) of the second group, the eighth group, and the ninth group are all taken as 7ms, and the tenth The value of the intra-group delay interval t _i (10) is taken as 2 ms, and the delay time design scheme given in Fig. 3 is obtained. Under the premise of ensuring the blasting effect, in order to further simplify the process of on-site construction and improve the construction efficiency, in the actual construction process of the project, as long as the detonators with the same group number are filled into the blastholes with the same group number, The detonation sequence of the blastholes that do not require the same group number is strictly as shown in the design of the extension time given in Figure 3.

Table 1 Design plan for delay time of a tunnel excavation project Group number N Inter-group delay interval t _j (N-1, N) Intra-group delay interval t _i (N) 1 0 3 2 50 7 ... ... ... 8 25 7 9 25 7 10 25 2 ... ... ...

Figure 11 shows a schematic diagram of the blasting hole of a wellhead excavation project. Figure 12 shows a schematic diagram of the grouping of some of the holes in the project. The numbers in the figure represent the group numbers corresponding to the holes. Figure 13 shows the corresponding delay time design diagram, the number in the figure represents the delay time value corresponding to the hole. The design of the extension time of the project is shown in Table 2: the inter-group delay interval t _j (1, 2) and t _j (2, 3) are taken as 5ms, t _j (3, 4) , t _j (4 , 5) takes 30ms, t _j (5, 6) takes 36ms, t _j (6, 7) , t _j (7, 8) takes 20ms; and, the group delay interval t The values of _i (1) , t _i (2) , t _i (6) , t _i (7) are taken as 0ms, and the value of t _i (3) is taken as 5ms, t _i (4) , t _i (5) The value is taken as 3ms, and the value of t _i (8) is taken as 2ms, thereby obtaining the delay time design scheme given in FIG. Similar to the project shown in Figure 1, in the actual construction, as long as the same group of detonators are installed in the same group of blastholes, the approximate blasting effect can be achieved.

Table 2 Design plan for delay time of a tunnel excavation project Group number N Inter-group delay interval tj(N-1, N) Inter-group delay interval ti(N) 1 0 0 2 5 0 3 5 5 4 30 3 5 30 3 6 36 0 7 20 0 8 20 2

Figure 4 shows a schematic diagram of the blasting hole of an open-air step project. Figure 5 shows a schematic diagram of the grouping of the project in rows. The figure shows the group number and hole number corresponding to the blasthole. For example, the number (1, 1) indicates the blasthole with the group number 1 and the hole number 1 , the number (2, 4) indicates the blasthole with the group number 2 and the hole number 4. Figure 6 shows the design of the delay time of the project. The figure shows the delay time value corresponding to the hole. In the project, the value of the inter-group delay interval t _j (1, 2) between the first group and the second group is taken as 60 ms, and the inter-group delay interval between the second group and the third group is t _j ( The value of 2,3) is taken as 112 ms, and the values of the intra-group delay intervals t _i (1) , t _i (2) and t _i (3) are taken as 26 ms.

Figure 7 shows a schematic diagram of the blasting blasthole of another open-air step project. Each blasthole 101 in the project is filled with two detonators, so that there are two detonation points in each blasthole, each point in Figure 7. Corresponds to a detonation point. The position of the two detonators in the blasthole can be seen in the schematic diagram shown in Figure 8. Figure 9 shows the grouping diagram of some of the blastholes in the project. The figure shows not only the group number and hole number corresponding to each blasthole, but also the hole number corresponding to each blasting point. For example, the number (1, 1, 1) indicates the starting point of the hole number 1 in the hole with the group number 1 and the hole number 1. The number (1, 1, 2) indicates that the hole number is 2 in the hole. The starting point; the number (2, 5, 1) indicates the starting point of the hole number 1 in the hole with the group number 2 and the hole number 5, and the number (2, 5, 2) indicates that the hole number in the hole is 2 The starting point. Figure 10 shows the design of the delay time of the project. The figures in the figure represent the delay time corresponding to the initiating point. In this project, the value of the inter-group delay interval t _j (1, 2) between the first group and the second group is taken as 60 ms, and the intra-group delay intervals t _i (1) and t _i (2) The values are taken as 26ms, and the value of the intra-hole delay interval t _k in each hole is taken as 5ms.

Claims (10)

1 . A method for applying a digital electronic detonator, characterized in that The application method includes the following steps in any order: a grouping step of grouping the holes according to the positions of the holes in the blasting area in the blasting area, and setting a group number for each group of the holes; a detonator registration step of assigning the group number and the group number of the detonator in the group for each of the digital electronic detonators, such that each of the digital electronic detonator signature codes and a certain one of the group numbers and Corresponding to the group number; The delay time calculation step is performed according to the set value of the delay interval parameter, and the calculation formula of the detonator delay time is calculated, and the delay time value of each digital electronic detonator is calculated. 2 . The application method according to claim 1, wherein The application method also includes a network detection step performed after the detonator registration step. 3 . The application method according to claim 1 or 2, characterized in that The application method further includes an extension time setting step performed after the delay time calculation step. 4 . The application method according to claim 1, wherein The delay interval parameter includes an inter-group delay interval t _j and an intra-group delay interval t _{i of} each group. 5 . The application method according to claim 4, characterized in that The calculation formula of the detonator delay time is expressed as the following form: T _det (N, n(N))= T _det (N-1, n _max (N-1))+t _j (N-1, N)+t _i (N)*(n(N)-1 ) , When N=1, T _det (N, n(N))= t _i (N)*(n(N)-1); among them, The N is a natural number sequentially increasing, indicating the group number corresponding to the digital electronic detonator, The n(N) is a natural number sequentially increasing, indicating the group number of the digital electronic detonator in the Nth group, The T _det (N, n(N)) represents an extension time value of the nth digital electronic detonator in the Nth group, The T _det (N-1, n _max (N-1)) represents a maximum value of the delay time values of all the digital electronic detonators in the (N-1) group, The t _j (N-1, N) represents an inter-group delay interval t _j between the N-1th group and the Nth group, The t _i (N) represents the intra-group delay interval t _{i of} the Nth group. 6 . The application method according to claim 4, characterized in that The calculation formula of the detonator delay time is expressed as the following form: T _det (N, n(N))=T _det (N-1, n _min (N-1))+t _j (N-1, N)+t _i (N)*(n(N)-1 ) , When N=1, T _det (N, n(N))= t _i (N)*(n(N)-1); among them, The N is a natural number sequentially increasing, indicating the group number corresponding to the digital electronic detonator, The n(N) is a natural number sequentially increasing, indicating the group number of the digital electronic detonator in the Nth group, The T _det (N, n(N)) represents an extension time value of the nth digital electronic detonator in the Nth group, The T _det (N-1, n _min (N-1)) represents a minimum value of the delay time values of all the digital electronic detonators in the (N-1) group, The t _j (N-1, N) represents an inter-group delay interval t _j between the N-1th group and the Nth group, The t _i (N) represents the intra-group delay interval t _{i of} the Nth group. 7 . The application method according to claim 1, wherein When performing the grouping step, the hole number of the hole in the group is also set for each of the holes in each group; The hole number corresponds to the group number one by one. 8 . The application method according to claim 7, wherein When performing the grouping step, setting a hole number of the initiation point in the blasthole for each blasting point in each of the blastholes; And performing the detonator registration step, and assigning the hole number to each of the digital electronic detonators, so that the feature code of each of the digital electronic detonators is in one-to-one correspondence with each of the hole numbers. 9 . The application method according to claim 8, wherein The delay interval parameter includes an inter-group delay interval t _j , an intra-group delay interval t _i , and an intra-hole delay interval t _k . 10 . The application method according to claim 9, wherein The calculation formula of the detonator delay time is expressed as the following form: T _det (N, n(N), m(n(N)))=T _det (N-1, n _min (N-1), m _min (n(N))) +t _j (N-1, N)+t _i (N)*(n(N)-1)+t _k (n(N))*(m(n(N))-1) , When N=1 and n(N)=1, T _det (N, n(N), m(n(N)))=t _k (n(N))*(m(n(N)) -1) among them, The N is a natural number sequentially increasing, indicating the group number corresponding to the digital electronic detonator, The n(N) is a natural number sequentially increasing, indicating the group number of the digital electronic detonator in the Nth group, The m(n(N)) is a natural number sequentially increasing, indicating that the digital electronic detonator is in the Nth group (n) The number of the hole in the hole, The T _det (N, n(N), m(n(N))) represents an extension of the digital electronic detonator of the nth (N)th hole number of the Nth group, m(n(N)) Time value, The T _det (N-1, n _min (N-1), m _min (n(N)))) represents the extension of all of the digital electronic detonators in the first hole of the (N-1)th group The minimum of the time values, The t _j (N-1, N) represents an inter-group delay interval t _j between the N-1th group and the Nth group, The t _i (N) represents the intra-group delay interval t _{i of} the Nth group, The t _k (n(N)) represents the intra-hole delay interval t _{k in} the nth (N)th hole of the Nth group.

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