Engineering Rock Mechanics
308 Surface excavation instability mechanisms I a = -45" Figure 17.23 Model test data for loading on the surface of an artificia ...
Design and 78 analysis I of surtace excavations In the last chapter, some of the idealized models were presented that have been ...
31 0 Design and analysis of surface excavations /-. .. * **-. .\ /. ... .*._ .. \ k': / -9. . .. -* ... .. -. . .b:. .. -. . : f ...
Kinematic analysis of slope instability mechanisms 3 1 1 (a) The dip of the slope must exceed the dip of the potential slip plan ...
3 1 2 Design and analysis of surface excavations I Dip direction of slope Lower angle limit: friction Upper angle limit: slope U ...
Kinematic analysis of slope instability mechanisms 3 1 3 N Figure 18.3 Example assessment for a slope of orientation 295"/75"-pl ...
3 1 4 Design and analysis of surface excavations a variation of plane instability, in that the sliding takes place on two discon ...
Kinematic analysis of slope instability mechanisms 3 1 5 Use with intersections Low angle limit: High angle limit: Friction (con ...
3 1 6 Design and analysis of surface excavations Figure 18.4@) shows the completed specific crescent-shaped overlay for a slope ...
Kinematic analysis of slope instabiliiy mechanisms 3 1 7 From the pole plot of the discontinuities shown in Fig. 18.1, a basical ...
3 1 8 Design and analysis of surface excavations From criterion (a) an overlay for an intersection plot is required; from criter ...
Kinematic analysis OF slope instability mechanisms 3 1 9 and intersection Lower angle limit 0" Upper angle limit: friction or sl ...
320 Design and analysis of surface excavations Basal planes: analysed using poles Dip direction of slope& Oblique toppling: ...
Kinematic analysis of slope instabiliv mechanisms 32 1 N -20" Figure 18.8 Example assessment for a slope of orientation 295"/75" ...
322 Design and analysis of surface excavations Upper angle limit: 90" to slope dip, yi boundary of failure criterion Dip directi ...
Combined kinematic analysis of complete excavations 323 N Figure 18.10 Example assessment for a slope of orientation 295"/75"-fl ...
324 Design and analysis of surface excavations evaluated by an engineer who is expected to recommend the various slope dip value ...
Foundations: stress distributions beneath variably loaded areas 325 The analysis indicates that, were a circular (in plan) quarr ...
326 Design and analysis of surface excavations Y Z x,yz Coordinates yT>z-x Coordinates Let R = Jm andp= R+z Boussinesq’s prob ...
Foundations: stress distributions beneath variably loaded areas 327 Uniform pressure applied to a rectangular base 0 r '9 Rectan ...
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