Records of the Geological Survey of India, Volume 140, Part 5The Survey, 2007 - 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 141
... joints . The joint sets , in general , are tight at the excavated level . They are close to moderately close and appear as micro- fractures at the surface of the foundation . Closely spaced and sheared joints occur generally along E - W ...
... joints . The joint sets , in general , are tight at the excavated level . They are close to moderately close and appear as micro- fractures at the surface of the foundation . Closely spaced and sheared joints occur generally along E - W ...
Page 142
... joints and ( iii ) consolidation of foundation with 6 m deep vertical grout holes placed at 6 m interval and grouting linearly the sheared and open transverse joints , have been suggested before laying foundation concrete . Earth dam ...
... joints and ( iii ) consolidation of foundation with 6 m deep vertical grout holes placed at 6 m interval and grouting linearly the sheared and open transverse joints , have been suggested before laying foundation concrete . Earth dam ...
Page 161
... joints . Fairly fresh ( Grade I ) , massive , pink / grey granite with limited joints forms the tunneling medium . As the terrain is relatively flat , sufficient lateral cover is available . Vertical rock cover over the tunnel grade ...
... joints . Fairly fresh ( Grade I ) , massive , pink / grey granite with limited joints forms the tunneling medium . As the terrain is relatively flat , sufficient lateral cover is available . Vertical rock cover over the tunnel grade ...
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Common terms and phrases
abutment Additional Item amphibolite ANDHRA PRADESH bed rock biotite block boreholes boreholes drilled carried charnockite clay CONSTRUCTION STAGE GEOTECHNICAL cover Cuddapah cut off trench cut-off depth DISTRICT dolerite dolerite dyke downstream earth dam excavated exposed field season flank foliation Formation foundation fresh rock garnet garnetiferous geological mapping GEOTECHNICAL INVESTIGATION gneiss gold granite granitoids granulite gravity grey ground level hornblende indicated intrusive joints KARNATAKA KERALA Khondalite kimberlite Kumar laterite limestone lineament located magnetite migmatite mineralisation minerals moderate monzogranite NE-SW NW-SE overburden pegmatite Peninsular Gneissic Complex penstock permeability tests powerhouse project authorities proposed Puducherry pyroxene pyroxene granulite quartz quartz veins quartzite river rock types samples schist Schist belt seismic shale shear zone slope soil Specialised Thematic Mapping spillway sq km STAGE GEOTECHNICAL INVESTIGATION strike length structure studies suggested Tamil Nadu terrain thickness toposheet traversed tunnel upto values varies vertical weir width