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 73
... trench NT - 1 is a master trench covering 60 m length with an average width of 1.75 m and average depth of 1.10 m . Twenty samples collected and analysed from this trench have given Fe ( total ) values ranging from 43.52 to 61.54 ...
... trench NT - 1 is a master trench covering 60 m length with an average width of 1.75 m and average depth of 1.10 m . Twenty samples collected and analysed from this trench have given Fe ( total ) values ranging from 43.52 to 61.54 ...
Page 160
... trench are failing at many places within the overburden soil . Seepage is also present all along the contact between overburden soils and weathered bedrock . Suggestion was made to fill the cut - off trench with clayey soil and to ...
... trench are failing at many places within the overburden soil . Seepage is also present all along the contact between overburden soils and weathered bedrock . Suggestion was made to fill the cut - off trench with clayey soil and to ...
Page 176
... trench before filling with impervious soil as per design specifications ii ) to grout the cut off trench with single row of holes drilled along the center line , spaced at 6 m center to center upto 3 m depth between ch 0.275 and 0.375 ...
... trench before filling with impervious soil as per design specifications ii ) to grout the cut off trench with single row of holes drilled along the center line , spaced at 6 m center to center upto 3 m depth between ch 0.275 and 0.375 ...
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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