Mechanics of Underground Structures

Lectures:
1. The meaning and content of the discipline, the stress state in the body section.
2. Stress-strain state of the body, math. equations of continuum mechanics, Airy´s function.
3. Rheology of rocks, strength conditions of materials, constitutive models.
4. Stress state around the working.
5. Strain around the unsupported underground workings, method of stabilizing stresses
6. Classification of computation methods for the solution stability and support loading.
7. Static solution of the supports of underground workings.
8. Design of sprayed concrete lining, SB bolts and combinations with other types.
9. Dimensioning of reinforcement according to limit states.
10. Wooden reinforcement construction, steel, concrete and reinforced concrete support.
11. Spatial construction- construction of crosses, branches etc.
12. Critical depth of underground workings and its importance for the design of reinforcement.
13. Reserve - invited lecture by an expert.

Exercise:
1. Practicing basic problems of statics and elasticity - characteristics
sections.
2. Calculation of deformation of statically determinate structures.
3. The three joints arc, internal forces and deformations - 1 task.
4. Strength of rocks.
5. Stress state around the underground workings.
6. Method of stabilizing stress - 2 task.
7. Calculation of loading on support according to the principles of classification methods.
8. Statically indeterminate construction.
9. Static solution of the tunnel lining.
10. Software VYZTUZ.
11. Software MUSCH, TUNKOT - determination of the failure around the working.
12. Final project - 3 task.
13 to 14 Consultation and solving tasks.