Page 319 - Engineering Rock Mass Classification_ Tunnelling, Foundations and Landslides
P. 319
10 Rupsiabagar Khasipara Quartz biotite schist 0.99 58
11 (left bank) Quartz biotite schist — —
12 Quartzite — —
13 Rupsiabagar Khasipara Quartzite — —
14 (right bank) Quartzitic sandstones 0.35 67
15 Quartzitic sandstones 0.31 65
Vishnugad Pipalkothi
(left bank)
Vishnugad Pipalkothi
(right bank)
Kotlibhel Dam (left bank)
Kotlibhel Dam (right bank)
Hydroelectric projects in Bhutan
16 Bunakha Dam Biotite gneiss — –
0.17 60
17 Sankosh Main Dam Phyllites 0.11 38
0.37 62
18 Sankosh Lift Dam Sandstone 0.35 63
0.11–1.20 38
19 Tala Dam (right bank) Biotite gneiss 0.48 58
20 Tala Dam (left bank) Biotite gneiss
Variations in values
Average values
Source: Singh, 2009.
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