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Tunnel electronic detonator mounting, connecting and detonating method

A technology of electronic detonator and detonation method, which is applied in the direction of blasting, etc., and can solve the problems that the on-site workers are difficult to master, difficult to promote, and time-consuming.

Active Publication Date: 2013-07-31
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is that the operation of the existing installation connection detonation method is complicated, time-consuming, difficult for field workers to master, and difficult to popularize

Method used

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  • Tunnel electronic detonator mounting, connecting and detonating method

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Effect test

Embodiment approach 1

[0074] A tunnel electronic detonator installation connection detonation method, the method includes the following steps:

[0075] Step 1 Drill blast holes according to the traditional three-stage oblique hole cutting method: cut holes, edge caving holes in N rows of left and right, bottom plate holes, upper caving holes in M ​​rows, peripheral holes; N=1, 2, 3, 4 or 5, M=1, 2, 3, 4 or 5;

[0076] Cutting holes are divided into three levels: the first level of cutting holes, the second level of cutting holes, the third level of cutting holes, each level has six holes; each level of cutting holes is divided into two groups of equal number of holes, with The center line of the tunnel is symmetrically arranged.

[0077] The edge caving eyes are arranged symmetrically to the center line of the tunnel, and there are N rows of side caving holes on the left and right, the total number of blasting holes in each row of side caving holes is ≤5, and the column closest to the tunnel cente...

Embodiment approach 2

[0131] A novel installation and connection detonation method for tunnel electronic detonators, the method includes the following steps:

[0132] Step 1 Drill the blastholes according to the traditional three-stage oblique hole cutting method, the first, second, and third stage cut holes, each with 6 blast holes; More than 3; the second row of upper caving holes, the total number of blastholes in the first row of upper caving holes is 8; the total number of blastholes in the second row of upper caving holes is 4; the total number of bottom plate holes is 14; the total number of peripheral holes is not more than 26.

[0133] The second step is to classify and segment the electronic detonators required for tunnel blasting, set the quantity and number of each electronic detonator, and set the delay time of each electronic detonator.

[0134] Class, section and number of electronic detonator are all according to embodiment one.

[0135] The surrounding rock of the tunnel is Class...

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Abstract

A tunnel electronic detonator mounting, connecting and detonating method relates to the field of tunnel and underground engineering drilling and blasting construction and solves the problems of the existing mounting, connecting and detonating method that the operation is complicated, the time is wasted, workers on site can not control the method easily, and the promotion is difficult. According to the method, electronic detonators are classified and then numbered according to the classification, and the delay time is set. Only small quantity of channeling type electronic detonators are mounted according to numbers, and edge avalanching type electronic detonators, bottom plate type electronic detonators, upper part avalanching type electronic detonators and periphery type electronic detonators are all mounted according to sections and do not need to be mounted according to numbers. The mounting, connecting and detonating method is simple, easy to be mastered by the workers, and has wide application prospect in the tunnel electronic detonator initiating, and compared with the time needed by the existing electronic detonator mounting, connecting and initiating method, the time neededby the tunnel electronic detonator mounting, connecting and detonating method is reduced by more than 60%.

Description

technical field [0001] Tunnel and underground engineering drilling and blasting construction. technical background [0002] The electronic detonator is the latest detonating equipment. There is no delay time set for the electronic detonator when it leaves the factory. The delay time can be set arbitrarily according to the surrounding rock conditions of the tunnel on site. [0003] At present, the installation and connection detonation procedure of the tunnel electronic detonator is as follows: [0004] 1. Drill blastholes on the tunnel face; [0005] 2. Number the blastholes on the tunnel face; [0006] 3. Number and set time for the electronic detonators to be used in tunnel blasting; [0007] 4. Install the electronic detonator in the blast hole on the tunnel face according to the principle of matching the number of the tunnel blast hole with the number of the electronic detonator; [0008] 5. According to the parallel connection method, connect the electronic detonato...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D1/055
Inventor 傅洪贤赵勇张成平
Owner BEIJING JIAOTONG UNIV