Records of the Geological Survey of India, Volume 139, Part 5The Survey, 2006 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 146
... spaced at 30 to 50 cms , besides bedding joints which are spaced at 10 cm to 1 m interval . A shear fault occurring transversely at ch.187 m on axis rendered slight displacement of various lithounits . It was observed to be a healed up ...
... spaced at 30 to 50 cms , besides bedding joints which are spaced at 10 cm to 1 m interval . A shear fault occurring transversely at ch.187 m on axis rendered slight displacement of various lithounits . It was observed to be a healed up ...
Page 152
... spaced at 3 m apart . The holes in each row spaced at 6 m centre to centre , in staggered fashion , drilled for a depth of 12 m . Curtain grouting ( A - holes ) was also suggested along the centre line of the dam . The ' A ' holes to be ...
... spaced at 3 m apart . The holes in each row spaced at 6 m centre to centre , in staggered fashion , drilled for a depth of 12 m . Curtain grouting ( A - holes ) was also suggested along the centre line of the dam . The ' A ' holes to be ...
Page 154
... spaced at 3 m apart . Two bolts in each row spaced at 3 m to each other in grid pattern ( 1.5 m on either side of the centre line of rock ledge ) may be driven in to rock ledge , inclined downwards , at an angle of 30 ° from horizontal ...
... spaced at 3 m apart . Two bolts in each row spaced at 3 m to each other in grid pattern ( 1.5 m on either side of the centre line of rock ledge ) may be driven in to rock ledge , inclined downwards , at an angle of 30 ° from horizontal ...
Contents
ANDHRA PRADESH | 1 |
Quaternary Geology | 9 |
Project National Geochemica Mapping NGCM | 16 |
Copyright | |
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abutment alignment amphibolite Andhra Pradesh assess bands basin bed rock biotite biotite gneiss block boreholes carried charnockite coast cut-off trench depth district dolerite drilled dunes dyke earth dam enclaves excavation exposed field season folds foliation Formation foundation fresh rock garnet Geochemical Mapping geological mapping GEOTECHNICAL INVESTIGATION gneiss gold grained granite granite gneiss granitoids granodiorite granulite gravity grouting holes hornblende indicated intrusive Item joints Karnataka Kerala Khondalite kimberlite laterite limestone lithounits located lugeons mafic metabasalt migmatite mineralisation minerals moderate mylonite NNW-SSE NW-SE occur overburden pegmatite penstock permeability tests phyllite powerhouse project authorities proposed pyroxene quartz quartz veins quartzite reservoir river samples were collected sand schist belt shale shear zone shotcrete slope soil Specialised Thematic Mapping spillway STAGE GEOTECHNICAL stream sediment samples strike structure studies sulphide surface Tamil Nadu thick toposheet traverse trending tsunami ultramafic upto values varying vertical weathered weir width