Explosion method of dimension stone production in joint development rock

A technology of specification and stone, which is applied in the field of blasting for the production of specification stone in rocks with developed joints, can solve the problems of difficulty in obtaining standard stone with uniform particle size, lack of pertinence in blasting methods, and differentiation of blasting methods, so as to meet the needs of use and be operable Strong, easy-to-step effects

Inactive Publication Date: 2011-10-26
ENG COLLEGE OF ENG CORPS PLA UNIV OF SCI & TECH
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Problems solved by technology

[0003] However, the blasting control technology of standard stone gradation has the following difficulties: the formation of blasting fragmentation is subject to the dual control of geological structures (structures) such as macroscopic joints, fissures, and faults in the rock body, blasting parameters, and explos

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  • Explosion method of dimension stone production in joint development rock
  • Explosion method of dimension stone production in joint development rock
  • Explosion method of dimension stone production in joint development rock

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[0012] The present invention will be further described below in conjunction with the drawings and embodiments.

[0013] Such as figure 1 As shown, in the rock with developed joints, the interaction relationship between blasting damage cracks and rock joint plane 2 is that damage cracks are mainly formed and distributed along joint plane 2, or start from the wall of blast hole 3 and develop perpendicular to joint plane 2.

[0014] According to the interaction between the blasting damage cracks and the rock joint plane 2, one is to control the angle between the propagation direction of the explosion wave and the joint plane 2 by adjusting the axial angle of the tunnel face 4 and the blast hole 3 to restrict the direction of the blasting crack; By adjusting the relative position of the charge pillar 1 and the joint surface 2, the blast hole 3 is located in the middle, adjacent to the joint surface 2 and the blast hole pattern on the joint surface 2 to adjust the length of the blasting ...

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Abstract

The invention discloses an explosion method of dimension stone production in joint development rock, which comprises the following steps: determining the explosive loading direction, determining the explosive loading position, determining the hole net parameters, carrying out the explosion and the like. On one hand, the method disclosed by the invention controls the included angel between the propagation direction of explosion waves and the joint development surface by adjusting the axial angle between the working face and the blast hole to restrain the trend of the explosion crack; and on the other hand, the length of the explosion crack is adjusted by adjusting the opposite position of the explosive loading column and the joint development surface and combining or selecting the hole distribution mode of the blast hole in the middle of the joint development surface, in the position close to the joint development surface, at the position on the joint development surface and the like. The explosion method disclosed by the invention is specially used for exploding of the dimension stone production in the joint development rock, has the advantages of simple steps, strong operability and good explosion effects and can obtain a great quantity of dimension stone; and the dimension stone has the advantages of great dimension and uniform granularity and can meet the service requirements of various projects.

Description

technical field [0001] The invention relates to a rock blasting method, in particular to a blasting method for producing standard stone materials in rocks with developed joints. Background technique [0002] At present, in large-scale airport and port projects, it is necessary to provide a large number of standard stones for infrastructure such as runways or breakwaters in the short term, and at the same time, there are strict control standards for technical indicators such as the grading of standard stones. Engineering blasting must adapt to the relevant technical standards of the main project, develop from the previous extensive type to the refined direction, and continuously innovate and improve the control technology of the specification stone gradation, in order to provide good technical support for the rapid, high-quality and efficient completion of the main project . [0003] However, there are the following difficulties in the blasting control technology of standard...

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Application Information

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IPC IPC(8): F42D1/00F42D3/04
Inventor 谢兴博李兴华纪冲龙源陈亦望王希之郝威生高振儒谭雪刚
Owner ENG COLLEGE OF ENG CORPS PLA UNIV OF SCI & TECH
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