224-0214/01 – Blasting Works in Quarries (TPL)
Gurantor department | Department of Geotechnics and Underground Engineering | Credits | 5 |
Subject guarantor | doc. Ing. Robert Kořínek, CSc. | Subject version guarantor | doc. Ing. Robert Kořínek, CSc. |
Study level | undergraduate or graduate | | |
| | Study language | Czech |
Year of introduction | 2003/2004 | Year of cancellation | 2020/2021 |
Intended for the faculties | HGF | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
The course is focused on rock cutting explosive charges industrial explosives. The study is an assortment of means of blasting technique, their functional characteristics and method of handling them. After the theoretical foundation releasing mechanism, firing charges, etc., the content is focused mainly on disintegration of the rock mass blasting in the mining of primary surface mines and quarries inc. explosives and the design of geometric parameters blasting. Briefly deals with the use of explosives in underground excavation line objects. The course is an assessment of the harmful and adverse effects of blasting (pressure wave, flight, toxic fumes, seismic effects). An essential part course is also relevant law, in particular in the area of blasting. Subject
following chapter with controlled blasting rock breaking and foundation destruction
blasting.
Teaching methods
Lectures
Tutorials
Summary
Předmět je zaměřen na problematiku rozpojování hornin výbuchem náloží
průmyslových trhavin. Součástí studia je sortiment prostředků trhací techniky,
jejich užitné vlastnosti a způsob manipulace s nimi. Po teoretickém základu
mechanizmu rozpojení, roznětu náloží apod., je obsah zaměřen především na
rozpojování hornin při hromadných primárních těžebních odstřelech na
povrchových dolech a lomech vč. návrhu geometrických a výbušinářských parametrů
odstřelů. Stručně se zabývá i použitím trhavin při ražení podzemních liniových
objektů. Součástí výuky je i posouzení škodlivých a nežádoucích účinků odstřelů
(tlaková vlna, rozlet, toxické zplodiny, seismické účinky). Nezbytnou součástí
předmětu je i příslušná legislativa zjm. v oblasti trhacích prací. Předmět
doplňuje kapitola trhacích prací s řízeným výlomem a základy destrukčních
trhacích prací.
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
Completion of the course blasting.
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 charges firing - a principle involved, the suitability and security firing,
ignitor side, millisecond blasting technique.
5th Theory of disintegration of rock explosion.
6th Basic parameters of blasting.
7th Multiple blasts on the surface - taxonomy, use.
8th Determination of basic parameters of aperture and surface blasting.
9th Determination of basic parameters of chamber blasting.
10th Saving technologies (contour blasting) - methods, principles, determination
basic parameters.
11th Secondary blasting.
12th Harmful effects of an explosion (air pressure wave, projection of material toxicity
fumes, seismic effects).
13th Fundamentals of destructive blast.
Exercise:
In practice the determination of basic parameters of blasting blasting disintegration of classical
work, mass-blasting on surface and groundwater during the excavation works
different conditions, 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 a mass shooting of Ex at the surface, incl.
the basic parameters of blasting.
5th Technological process of shaking blasting in quarries and mines.
Conditions for subject completion
Conditions for completion are defined only for particular subject version and form of study
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction