Records of the Geological Survey of India, Volume 123, Part 1The Survey, 2002 - 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 128
... tunnel - 1 & II , construction of a cut and cover duct has been suggested . In tunnel - III , top heading and benching method of tun- nelling has been recommended because of the poor rock quality along the tunnel grade . D. N. ...
... tunnel - 1 & II , construction of a cut and cover duct has been suggested . In tunnel - III , top heading and benching method of tun- nelling has been recommended because of the poor rock quality along the tunnel grade . D. N. ...
Page 199
... tunnel is to be located across the Bhitri saddle in Deoland hog's back . Geotechnical mapp- ing of 20,000 sq m area ( 1 : 500 ) and logging of an aggregate depth of 18 m from trial pits reveal that the proposed dam site is occupied by ...
... tunnel is to be located across the Bhitri saddle in Deoland hog's back . Geotechnical mapp- ing of 20,000 sq m area ( 1 : 500 ) and logging of an aggregate depth of 18 m from trial pits reveal that the proposed dam site is occupied by ...
Page 399
... tunnel bay based on ' Q ' system . As per ' Q ' values , 58 % tunnel falls in unsupported category and rest required supports . Mehrotra and Sharda , have concluded that slide at RD5710m along the hydel channel is a rock slide ...
... tunnel bay based on ' Q ' system . As per ' Q ' values , 58 % tunnel falls in unsupported category and rest required supports . Mehrotra and Sharda , have concluded that slide at RD5710m along the hydel channel is a rock slide ...
Contents
CENTRAL HEADQUARTERS | 1 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 46 |
COAL WING | 72 |
Copyright | |
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Common terms and phrases
analysed anomaly assess associated bands basalt base basic basin belt Bihar block bodies boreholes carried channel clay coal Code collected completed comprises condition construction continued core covered delineated deposits depth detailed developed Director district Division drilling dykes eastern exploration exposed field flows Formation foundation geological mapping geophysical geotechnical investigation gneiss gold grade grained granite Group Headquarters holes identified indicated intrusive irrigation length lignite limestone located lower magnetic major mineral mineralisation Nagpur objective occur Orissa Pradesh prepared present processed proposed quartz quartzite range Regional reported reservoir revealed river rock samples sand sandstone scale Scheme schist seams sediments shale shear soil spillway sq km stage strike structure suggested surface surveys taken thickness thin tion Toposheet traverses trending tunnel units upto values varies various veins West zone