Engineering Rock Mechanics
328 Design and analysis of surface excavations Once all the influence functions have been evaluated (these being geometrical fun ...
Foundations: stress distributions beneath variably loaded areas 329 influence function may be developed and used through impleme ...
330 Design and analysis of surface excavations sector method could be used to develop expressions for any of the displacement or ...
Techniques for incorporating variations in rock and site 331 We believe that this probabilistic approach is fundamentally flawed ...
332 Design and analysis of surface excavations In the example in Fig. 18.15, we show the sensitivity of the factor of safety for ...
Techniques for incorporating variations in rock and site 333 question. Instead, it is said that the parameter can take on a rang ...
334 Design and analysis of surface excavations Take fixed values Calculate F Generate random values Repeat Figure 18 ...
Techniques for incorporating variations in rock and site 335 Modern computational facilities are such that large numbers of sim- ...
336 Design and analysis of surface excavations Satisfies all three criteria Exceeds minimum mean F but violates one or both prob ...
Techniques for incorporating variations in rock and site 337 ';'[A 'If,s\ ~[y--\ 'r ~i\ 43 8: I I I I I E0 I .n 0 I .o 0 1 .0 0 ...
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Underground 79 excavation instability mechanisms Chapters 19 and 20 of this book, on instability around underground excavations, ...
340 Underground excavation instability mechanisms in terms of kinematics may be conveniently conducted through the use of hemisp ...
Structurally-controlled instability mechanisms 34 1 (a) (b) Figure 19.2 Kinematic identification of sliding blocks. Fig. 19.2(a) ...
342 Underground excavation instability mechanisms Figure 19.3 Kinematic identification of stable blocks. surfaces which are not ...
Strvctvrally-controlled instability mechanisms 343 tion Figure 19.4 Inclination of the hemispherical projection to be coincident ...
344 Underground excavation instability mechanisms on the inclined projection by the dashed great circle. The relative positions ...
Structurally-controlled instability mechanisms 345 Figure 19.6 Identification of kinematically admissible falling blocks at an i ...
346 Underground excavation instabiliv mechanisms Figure 19.8 Identification of kinematically admissible sliding blocks at a non- ...
Stress -con trolled ins tabiliv mechanisms 347 Figure 19.9 Identification of kinematically stable blocks at overhanging and non- ...
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