224-0203/02 – Blasting and Desintegrations of Rocks (TP)
Gurantor department | Department of Geotechnics and Underground Engineering | Credits | 4 |
Subject guarantor | doc. Ing. Robert Kořínek, CSc. | Subject version guarantor | doc. Ing. Robert Kořínek, CSc. |
Study level | undergraduate or graduate | Requirement | Compulsory |
Year | 3 | Semester | winter |
| | Study language | Czech |
Year of introduction | 2008/2009 | Year of cancellation | |
Intended for the faculties | FAST | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
The aim is to teach students to design technology for blasting rock when disconnecting stamping horizontal underground works of a small cross section. Within the scope of become familiar with an assortment of resources blasting equipment, igniter charges, the theory and releasing their own technology.
Finally proposes a technological process of blasting work with the determination of basic parameters of the blast.
Teaching methods
Lectures
Tutorials
Summary
Explosion; explosive; blasting agent; igniter; initiation; cut; sink; stemming;
blasting pattern; blast; shot; rock blaster; technical project of blasting
works; scatter of broken material; harmful gaseous products of explosions;
seismic effects.
Compulsory literature:
Bhandari, S.[i] Engineer Rock Blasting Operations[/i]. A.A. Balkema, 1997. ISBN: 90-5410-658-1.
Recommended literature:
Way of continuous check of knowledge in the course of semester
E-learning
Other requirements
Required completing the course Geology.
At least 70% attendance at the exercises. Absence, up to a maximum of 30%, must be excused and the apology must be accepted by the teacher (the teacher decides to recognize the reason for the excuse).
Tasks assigned on the exercises must be hand in within the dates set by the teacher.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
1st Introduction to the disciplines - history of disintegration, the basic concepts, the teaching program.
2nd Classical and non-classic rock disintegration.
3rd Blasting - Blasting equipment, features and handling.
4th Explosives firing charges - a principle involved, the suitability and security firing,
ignitor side, millisecond blasting technique.
5th Theory of disintegration of rock explosion - the basic parameters of the blasting.
6th Technology blasting ration digging underground line.
7th Blasting for excavation of large sections of underground workings.
8th Saving technologies (contour blasting) - methods, principles, determination
basic parameters.
9th Blasting to prevent unwanted geomechanical phenomena.
10th Blasting the commercial extraction of minerals.
11th Restriction of blasting when applied in potentially explosive atmospheres (gassy coal
mines).
12th Harmful effects of an explosion (vzd. pressure. Wave projection of material toxicity
combustion, explosion seismic effects).
13th Mechanical rock cutting (cutting, grinding, injection), application of knives
Rolling chisels, etc. - embossing machine tunnel. machines, embossing plates, impactors.
Exercise:
In practice the determination of basic parameters of blasting disintegration of classical tearing
work digging underground důzného species in different conditions with
Using computer technology and available software.
1st chemistry of explosives.
2nd Assessment of electrical firing a given number and type of electric detonators
and electrical sources. firing pulse.
3rd Technological process of blasting during the excavation of the line underground structure
small section (the gallery, collector, etc.).
4th Technological process of blasting digging tunnels with the application of direct
laws.
5th Design parameters of blasting excavation in the assessment of seismic
bomb blast effects on surface structures.
6th Technological process of blasting during tunnel excavation with a smooth application
the contour of the excavation work.
Programs:
1st The calculation of basic characteristics of explosives.
2nd Electric ignitor charges.
3rd Technological process of blasting in tunnel excavation tunnel.
4th Technological process of blasting - applications contour blasting.
5th Technological process for blasting or excavation. shaft with
assessment seismic effects.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction