Engineering Rock Mechanics

2 82 (a) Rock reinforcement and rock support Figure 16.3 (a) Isochromatics in photoelastic model indicating shear stresses aroun ...

Additional points 283 In Chapter 15, we noted that the possibility of introducing new methods of excavation is unlikely. Similar ...

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Foundation and 77 slope instability mechanisms 17.1 Near-surface instability Rock foundations can be on a small scale, such as t ...

286 Foundation and slope instability mechanisms Figure 17.1 Hoover Dam on the Arizona-Nevada border, USA, (top) and the abutment ...

Near-surface instability 287 Figure 17.2 Slope stability in mining and civil engineering. (a) Slope stability during open-pit mi ...

288 Foundation and slope instability mechanisms I Figure 17.3 The slope stability and the associated analysis is a function of t ...

Question and answers: foundation and slope instability mechanisms 289 Case d: as (a) but with rock wedge between failure regions ...

290 Foundation and slope instability mechanisms In each case, derive an expression for the factor of safety and, for the special ...

Question and answers: foundation and slope instability mechanisms 29 1 and use this expression to investigate the requirements f ...

292 Foundation and slope instability mechanisms and the pressure for F = 1 is given by yH (sin2+ - (1 + cos 214) tan$) - 4c (sin ...

Question and answers: foundation and slope instability mechanisms 293 from which we see that the three angles of /3, e and $r ar ...

294 Foundation and slope instability mechanisms this geometric check should always be performed before computing the factor of s ...

Question and answers: foundation and slope instability mechanisms 295 Block 3 fx = 0, with forces directed to the right reckoned ...

296 Foundation and slope instability mechanisms With the limiting condition of S = CL this reduces to N~~sin30+cLsin60+N~2sin30+ ...

Question and answers: foundation and slope instability mechanisms 297 417.5 A cross-section through a rock slope is shown below. ...

298 Foundation and slope instability mechanisms We then draw up a table of heads: Node: A BCD E Pressurehead, plyw 0 wfyw 0 0 0 ...

Question and answers: foundation and dope instabirity mechanisms 299 ADBC = Am - ABOC = 4 x 17 x 17 - 4 x 17 x 17tan30 = 61.07 m ...

300 Foundation and slope instability mechanisms for a range of aperture values and plotting the results: 012345678 Aperture, mm ...

Question and answers: foundation and dope instability mechanisms 301 To obtain the stresses and displacements due to the complet ...