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R2NSSMPE - Stress conditions in the rock massif during deposit excavation

Course specification
Type of study Master academic studies
Study programme
Course title Stress conditions in the rock massif during deposit excavation
Acronym Status Semester Number of classes ECTS
R2NSSMPE mandatory 2 2L + 3E 7.0
Lecturers
Lecturer
Lecturer/Associate (practicals)
Prerequisite Form of prerequisites
Learning objectives
The main goal of the course is to introduce mining students to the basic methods of analyzing the stress-deformation behavior and state of the rock mass before and after the construction of underground rooms, as well as calculation methods.
Learning outcomes
After listening to and passing the course, students will master the basic methods of analysis and calculation of voltage around the underground room and underground pressures on the subgrade.
Content
1. Primary stress state in the Earth's crust: gravitational, tectonic and seismic stress field. Hypotheses about stress distribution in the rock massif. 2. Secondary stress state in the rock mass. The influence of cracking on the stability of the underground room. 3. Deformation behavior of the rock mass. Material strength. 4. Stress-strain condition around the unsupported underground room for an elastic environment. 5. Stress-strain condition around unsupported underground room for inelastic environment. 6. Stress-strain state around the unsupported underground room for the conditions of the rheological model. 7. Stress-strain condition around the underbuilt underground room. 8. Calculation of the load on the substructure of the corridor under the conditions of mutual interaction between the rock and the substructure. 9. Calculation of the static load on the foundation. 10. The procedure of disintegration of the rock mass in order to reduce the load on the foundation. 11. Distribution of stress and deformation around the wide-faced excavation. 12. Measures to protect corridors from excavation pressure and deformation. 13. Principles of designing safety columns. 14. The influence of the shape of the columns on strength.
Teaching Methods
Lectures, exercises, practicum, consultations.
Literature
  1. P. Jovanovic. Design and calculation of the substructure of horizontal underground rooms, books 1 and 2. University of Belgrade, Faculty of Mining and Geology, Belgrade, 1994.
  2. Z.T. Bieniawski. Rock mechanics design in mining and tunneling. A.A. Balkema, 1984.
Evaluation and grading
Attendance and activity in classes, making essays, taking tests and the final exam.
Specific remarks
Students are required to attend classes, do exercises, pass tests and the final exam.