224-0213/02 – Driving of Underground Openings and Blasting Works (RPD&TP)
| Gurantor department | Department of Geotechnics and Underground Engineering | Credits | 5 |
| Subject guarantor | doc. Ing. Karel Vojtasík, CSc. | Subject version guarantor | doc. Ing. Karel Vojtasík, CSc. |
| Study level | undergraduate or graduate | | |
| | Study language | English |
| 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
To learn the basics of a mined underground small lateral dimensions (galleries) with a focus on using conventional drilling and excavation blasting. The design of the basic parameters of the technological process
blasting design and dimensions of reinforcement works, the machinery equipment of the face and setting times of each technological cycle of tunneling operations.
Teaching methods
Lectures
Tutorials
Summary
The course focuses on the disintegration of the rocks during the excavation of underground buildings by the so-called classical technology by means of drilling and blasting works. He is acquainted with the range of means of blasting techniques, the ignition of the charge and the methodology for determining the basic parameters of the blasts during the mining of the underground works. Further, the subject is focused on the mining and reinforcement of underground works. It deals with the determination of basic parameters for excavation (size and shape of the work, assessment of geotechnical conditions of the rock environment). The subject acquaints with underground technology of reinforcement, bolting and injection of rocks. In particular, he acquaints with classical embossing technology using drilling and blasting work, and also deals with mechanized embossing with boring machines, tunneling machines and drilling boreholes. It is focused on horizontal works of various shapes and sizes, mined in different conditions (depth, purpose, safety, anomalies of the rock environment). The issue of excavation and digging of vertical works is discussed only marginally. Learning outcomes of the course unit The student will acquire the basic knowledge for the determination of the complex technological procedure with the design of the machinery and material equipment of excavation, settlement, determination of the technological times of the basic and auxiliary operations of the excavation cycle resulting from the timing of the excavation. They will learn the dimensions of basic types of reinforcement structures (wood, steel, studs, concrete). Also included is the valid safety legislation for underground excavation.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
E-learning
Other requirements
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:
Lecture topics:
Basic parameters of underground works. IG assessment of mining conditions, classification systems.
Rock dismantling by blasting, blasting technology.
Theory of rock disintegration by explosion, ignition of charge, basic data on blasting work.
Cuts, blasting technology in underground works.
Cracking work during mining, harmful effects of explosion, methods of contour blasting.
Hand drilling and drilling wagons and kits for the mining of underground works.
Loading and unloading of the rock during excavation, excavating means during excavation.
Removing rocks at different excavation systems, removing rocks during excavation.
Reinforcing construction of underground works. Reinforcement steel, wooden, concrete, bolt and combined, grouting
Reinforcement technology (steel, wooden, concrete).
Organization of work on embossing and excavation, utilization of computer technology for designing and control of embossing.
Fundamentals of mining of spacious works of mining and underground construction.
Overview of Continuous excavation (TBM, Shields).
Practice topics:
Basic explosive characteristics of explosives.
Assessment of electrical ignition security
Pasport of blasting work for the liner underground work.
The technological process of stamping a small underground work (a blasting passport, designing the initiation, designing and assessing the frame reinforcement, machine drilling, loader loading and belt conveyance, reinforcement technology, operating times and work schedule)
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
Předmět neobsahuje žádné hodnocení.