Engineering Rock Mechanics
462 Questions 15.1-75.10: excavation principles Rock Mass Description (RMD) Powdery or Friable ............... 10 Blocky ....... ...
Questions 75.1-15.10: excavation principles 463 ............................. .............................. (8) resistance of r ...
464 Questions 15.7 - 7 5.1 0: excavation principles Draw a sketch of these three effects and explain why they cause a so-called ...
Questions 16.1 -1 6.1 0: rock reinforcement and rock support Q 16. I When rockbolts are used for surface or underground excavati ...
466 Questions 16. I- 16.10: rock reinforcement and rock support IX t (a) The component of the bolt force acting parallel to the ...
Questions 16.7- 76.7 0: rock reinforcement and rock support 467 Q 1 6.6 A long underground chamber is to be constructed in a roc ...
468 Questions^7 6.7 -^7 6.7 0: rock reinforcement and rock support support Rock pressure displacement Rock displacement With ref ...
Questions 17,1-17,10: foundation and slope instability mechanisms Q 17.1 The diagram below (Serrano and Olalla, 1998) shows six ...
470 Questions 17.7- 7 7.7 0: foundation and slope instability mechanisms 417.2 Consider extending the method of equilibrium anal ...
Questions 7 7.7 - 7 7.7 0: foundation and slope instability mechanisms 471 Q 17.5 A cross-section through a rock slope is shown ...
472 Questions^7 7.7-7 7.70: foundation and slope instability mechanisms (b) Sketch the locus of constant a, for varying 8, and s ...
Questions 18,l-18,lO: design of surface excavations 418.1 A foundation is proposed on a rock mass consisting of a series of hori ...
474 Questions 7 8.7- 7 8.7 0: design of surface excavations 418.3 A quarry is to be opened in a rock mass which contains four fr ...
Questions 1 8.1- 18.10: design of surface excavations 475 (a) Using kinematic feasibility techniques, determine whether or not ( ...
476 Questions 7 8.7 - 18. IO: design of surface excavations 418.10 Using the principle of virtual work, determine the value of P ...
Questions 19.1 -1 9.1 0: underground excavation instability mechanisms 419.1 The diagram to the right shows the !jorn^5 Om cross ...
478 Questions 7 9.7 -7 9.7 0: underground excavation instability mechanisms Q19.6 For both the haunch A and the side wall B stud ...
Questions 7 9.7-7 9.70: underground excavation instability mechanisms 479 (a) compare the stress in the centre of the roof of th ...
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Questions 20,1120.1 0: design of underground excavations 420.1 A vertical shaft is to be sunk through a rock mass in which the m ...
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