Engineering Rock Mechanics
228 Rock mechanics interactions and rock engineering systems (RES! 14.3 Interaction matrices in rock mechanics In Fig. 14.5, we ...
Symmetry of interaction mutrices 229 In Fig. 14.6, we illustrate another 2 x 2 interaction matrix in which the parameters point ...
230 Rock mechunics interactions and rock engineering systems (RES) ORIENTATION Measurements of orientation may be imprecise and ...
Symmetry of interaction matrices^23 1 'hb Transition probability matrix for Markov chain of state changes 3 p --p --p ----x p., ...
(^232) Rock mechanics interactions and rock engineering systems (RES) Asymmetric because there is a rotation direction Y Y' t4 X ...
A rock mechanics-rock engineering interaction matrix 233 Leading diagonal terms and interaction terms have equal importance at45 ...
234 Rock mechanics interactions and rock engineering systems (RES! Damaged caused by blasting and stress 41 concentrations Y U a ...
Further examples of rock mechanics interaction matrices 235 14.6 Further examples of rock mechanics interaction matrices The thr ...
236 Rock mechanics interactions and rock engineering systems (RES) Normal Wrench c3 0 Block moving towards observer I Youngest f ...
Concluding remarks 237 established so that the problem structure is developed. Immediately, an information audit is possible con ...
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Excavation 7 5 principles In this chapter, we explain the fundamental principles of rock excavation. Initially, the excavation p ...
240 Excavation principles openings, whereas the stopes (the openings left by mining ore) can be allowed to collapse during minin ...
The excavation process 241 A variety of considerations is involved, such as the brittleness of the material, as expressed via th ...
24 2 Excavation principles 75.7.3 Energy and the excavation process There has been considerable discussion over the years on opt ...
Rock blasting 243 In this section, we introduced the three basic concepts of (a) attaining the post-peak portion of the complete ...
244 Excavation principles consider this phenomenon as being composed of a ’stress wave effect’ and a ‘gas pressure effect’. The ...
Rock blasting 245 I Free face Gas vents along discontinuities behind borehole discontinuities Blasthole Figure 15.6 Complex effe ...
246 Excavation principles at the kerfed free face as a tensile stress wave, resulting in complete frag- mentation (Fig. 15.7(b)) ...
Rock blasting 247 Figure 15.9 Use of the free-face concept with delay detonators and the wedge cut. 75.2.3 Explosives It is also ...
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