Explosion method of dimension stone production in joint development rock

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...

AI Technical Summary

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 explosive parameters. Without comprehensive consideration of the above factors, it is not easy to obtain standard stones with uniform particle size

In addition, the existing technology does not distinguish the blasting methods of rocks with different properties and specifications, and the blasting methods lack pertinence

Images