Engineering Rock Mechanics
188 Testing techniques anisotropic and so an essential feature of such a device must be the ability to both apply load and measu ...
Tests on rock masses 189 5 or more per hole) MPBX sensor head Rubber sleeve over Transducer lead wire Data acquisition sys Note ...
190 Testing techniques q - quantity of water required to main- tain constant head Rest water level il Casing Constant head test ...
Standardized tests 1 9 1 1 1.6 Standardized tests Although the strategy of rock characterization is a function of the engineerin ...
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Rock mass 72 classification In earlier chapters there was discussion about the influence of the rock mass structure on the rock ...
194 Rock mass classification parameters relating to the geometry and mechanical condition of the rock mass are used. In the case ...
Q-system 195 hp 20 - 45 Table 12.1 (cont) I Suh Dsmcndisullr to Nd ui8 i C.EFFECT OF DISCONTINUITY ORIENTATIONS IN TUNNELLING Ih ...
196 Rock mass classification (a) RQD; (b) number of discontinuity sets; (c) roughness of the ’most unfavourable’ discontinuity; ...
Q-system 197 054.0 J. 2 3 4 6 9 I2 IS 20 Table 12.2 Q-system parameters Forhurxecth. we (3.0 n JJ ForpomL, WI (2.0 x JJ Q-~ystem ...
198 Rock mass classification Table 12.2 (cont) Q-vstem of ReD J, Rock Mass Classification e 7 - SRF J. s 2 m: ~~con(inuourumaorh ...
Applications of rock muss cluss;f;cafion systems 1 99 L I I I I I I 10-1 10" 10' 102 lo3 I o4 io5 I 06 Stand-up time, hrs Figure ...
200 Rock mass classification Using the rock mass parameters in each case to provide a quantitative assessment of the rock mass, ...
links between the classification systems and rock properties 201 In the same vein, extensions to the RMR and Q-classification sy ...
202 Rock mass classification potential failure mechanism is not identified within the classification system. Stress is not inclu ...
Extensions to rock mass classification techniques 203 maximum and minimum values, and the manner in which it varies between the ...
204 Rock mass classification LO[ A RQD , LO[ /y , LOI ~~ I.O[ 0.0 0.0 0.0 0.0 , 40 50 60 70 80 90 0 I 2 3 4 0 051.015 8 9 10 11 ...
Extensions to rock mass classification techniques 205 Site parameters E Rock mass 0 Discontinuity El Intact rock Figure 12.5 Rel ...
206 Rock mass classification Table 12.4 Relative importance of rock engineering parameters in three engi- eering activities In s ...
Rock dynamics 73 and time- dependent aspects In this chapter we will be discussing a variety of effects related to the different ...
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