Ways to Clarify the Properties of Rocks During Drilling and Blasting Operations

Zharikov, S. N.; Shemenev, Valery; Kutuev, Vyacheslav

doi:10.21177/1998-4502-2017-9-1-74-80

Cited by 3 publications

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“…6). The Institute of Mining of the Ural Branch of the Russian Academy of Sciences has developed a procedure [13] for determining the specific explosive consumption, taking into consideration the data of the simulation of the rock distribution by the difficulty of drilling index. The technique allows to adjust the charge column and the mass of explosives located in the well, in accordance with the forecast.…”

Section: Resultsmentioning

confidence: 99%

Simulation and study of strength properties of rocks by measuring characteristics during the blast holes drilling

Regotunov

Sukhov

2018

E3S Web Conf.

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The article shows the results of the development of a method for obtaining information on the strength properties of an massif in the process of drilling of blast holes. This method is developed for open-cast mining and serves to increase the effectiveness of mass explosions. The order of operations is shown and the equipment is described for obtaining the necessary measured characteristics for the subsequent simulation of the distribution of rocks in the volume of the local block of the massif. The paper presents an approach to simulating of a threedimensional model of rock distribution from the difficulty of drilling in the volume of a local block that is subject to explosive destruction. The results of approbation of the equipment and simulation procedure at a large mining enterprise OJSC "Uralasbest" when blast holes are drilled with roller-type drill rig are presented. As a result of the approbation of the equipment, the values of the average power consumption for the drilling of one meter of the well were set by the machine tool, the fraction of power attributable to the auxiliary operations, and the average energy intensity of the fracture (by the rotator power, without taking into account the compressor's cost for blowing the well). Based on the test results, a digital model has been developed that has made it possible to improve the quality of studies on strength properties of rocks in an experimental local block prepared for explosive destruction.

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Section: Resultsmentioning

confidence: 99%

Simulation and study of strength properties of rocks by measuring characteristics during the blast holes drilling

Regotunov

Sukhov

2018

E3S Web Conf.

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Influence of dynamics of development of open mining on technological features of blasting breaking

Zharikov

Kutuev

2018

E3S Web Conf.

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The paper desribes the results of the analysis of the drilling and blasting index at some large enterprises. The significant period of their work has been considered. The increase in the specific consumption of explosives by years has been shown and the reasons for this increase have been explained. The issue of the development prospects of the drilling and blasting complex in terms of reducing the cost of explosives, as well as some issues associated with the use of explosives, manufactured on site. It is suggested that in the near future the development of open mining will be associated with the acceleration of processes and a significant increase in their intensity, both in the development of new ones and in the refinement of existing large open-pit mines. In this regard, drilling and blasting operations are waiting for certain changes in both the mechanization of processes and the technological methods of production. An approach is proposed for improving energy efficiency and resource saving in the production of drilling and blasting operations, which consists in applying a horizontal cut along the bottom of the bench with blasting breaking of the rock mass. It has been previously shown that the use of this method of breaking can be quite effective in comparison with the traditional approach.

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Pit wall stability and drilling-and-blasting

Zharikov

2019

IOP Conf. Ser.: Earth Environ. Sci.

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Ways to Clarify the Properties of Rocks During Drilling and Blasting Operations

Cited by 3 publications

References 0 publications

Simulation and study of strength properties of rocks by measuring characteristics during the blast holes drilling

Simulation and study of strength properties of rocks by measuring characteristics during the blast holes drilling

Influence of dynamics of development of open mining on technological features of blasting breaking

Pit wall stability and drilling-and-blasting

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