Records of the Geological Survey of India, Volume 127, Parts 3-4Government of India, 1992 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 152
... TUNNEL ALONG THE WATER CONDUCTOR FOR RATHONG CHU HYDRO ELECTRIC PROJECT , WEST SIKKIM ( Code No. EG / ER / WSA ... tunnel would be required for negotiating the water conductor from intake to the silt trap . The tunnel alignment is ...
... TUNNEL ALONG THE WATER CONDUCTOR FOR RATHONG CHU HYDRO ELECTRIC PROJECT , WEST SIKKIM ( Code No. EG / ER / WSA ... tunnel would be required for negotiating the water conductor from intake to the silt trap . The tunnel alignment is ...
Page 165
... tunnels except tunnel No. 23 has been completed . In course of construction of this tunnel , flowing ground condition and resulting col- lapse were encountered at ch . 945 m from the Rayagada portal and at ch . 367 m from the Koraput ...
... tunnels except tunnel No. 23 has been completed . In course of construction of this tunnel , flowing ground condition and resulting col- lapse were encountered at ch . 945 m from the Rayagada portal and at ch . 367 m from the Koraput ...
Page 79
... tunnel located on the left bank of the river is completed . Collapse of the intake portal slope of the diversion tunnel has been cleared . Measures to contain further destabilisation of this slope have been suggested . Test grouting ...
... tunnel located on the left bank of the river is completed . Collapse of the intake portal slope of the diversion tunnel has been cleared . Measures to contain further destabilisation of this slope have been suggested . Test grouting ...
Contents
Chhotanagpur Gneiss | 8 |
Geological mapping and geochomical survey to the south | 15 |
Singhbhum Belt and North Singhbhum Shear Zone | 22 |
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ABSTRACTS OF PROGRESS Aizawl alignment amphibolite Andaman anomaly apatite ARUNACHAL PRADESH Assam bands bank basin bed rock belt Bihar biotite block boreholes Brahmaputra carbonatite chert chlorite chromite clay conglomerate Dalma deposits depth district drilling east Engineering Geology erosion exposed EXTENDED ABSTRACTS faults field season flood plain folds foliation Formation geochemical GEOLOGICAL MAP geophysical geotechnical investigation gneiss gold grained granite gneiss grey Group of rocks GSI Rec INDEX indicated Irrigation Keonjhar LATERITE limestone lithounits located manganese Manipur Meghalaya metasedimentary mica schist mineral nala occur Orissa OVERVIEW phyllite Plate proposed Purulia quartz quartz veins quartzite Quaternary regional river samples sand sandstone scale schist sector sedimentary sequence shale Shear Zone Shillong Sikkim silt siltstone Singhbhum granite slope soil spillway sq km sq.km stage geotechnical investigation structures sulphides Supergroup surface SURVEY OF INDIA thick tion toposheet traverses trending tunnel ultramafic unconformably upto volcanics West Bengal