Instrumentation for dams

Instrumentation for dams

93A Describes the use of photogrammetry and precise levelling to measure the effects of tunnel driving beneath York Way, London, UK, on the movement ...

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93A

Describes the use of photogrammetry and precise levelling to measure the effects of tunnel driving beneath York Way, London, UK, on the movement of the ground surface and surface buildings. The grour~ properties were ~ s o determined. Grour~ surface movements were found to be small: ~J mcximum of 4mm, and movement of the buildings was measured to be 2ram ~ x i m u m vertically and lOmm maximum horizontally. Turnqel construction was found to have left the buildings skewed ~nd slightly tilted. 82k192 RECENT ,LDV/~CES IN t4ONITORING DAMS Anesa, F; Bonaldi, P; Giuseppetti, G Int Water Power Dam Constr, V33, NI0, Oct ]961, P!7-20 Describes an Italian-developed system comprising inst~lled transducers, automatic data acquisition systems and a microcomputer, with software to perform the following functions: on-line processing, identifying abnormal situations, am~lysls of likely anomaly development, off-line ar~.lysis for the interpretation of anom~ous behavlour, identification of some model constants drawing on past experience. All d~ta is stored for future reference and armlysi 6. 824193 INsTRU~4ENTATION FOR D~P'S Duscha, L A Int Water Power Im~ Constr, V33, NIO, Oct 1981, P20-22 Briefly discusses the role of various types of instruments and the general practice of the US Army Corps of Engineers. 82419~ ~ASSIRINO ROCK STRESS FOR HYDRO PROJECTS H~imson, B C Int W~.ter P ~ e r Dsml Constr, V~3, NI0, Oct 198], P~7-h~ Discusses the use of in sltu stress measurement by overcoring and hydraulic fracturing and hew this may be used in the design of large undergrour~l power plants. Refers specifically to the use of ~ o f r a c t u r l n g in the Helms pumpedstorage proJect~ C,~liforr~ia, USA, and the Bad Creek pumped-storage project, South Carolina, USA.. 824195 INTERPRETATION OF ~ HYDRAULIC FRACTURING ~
824197 EXPERIMENTAL INVESTIG/~TION OF ~ E FORCE/PENETRATION RELATIONSHIPS OF ROD P~PA~. TECHNICf~ NOTE Stelger, F Geotech Test J, V3, N4, Dec 1980, P163-166 Reports tests in which steel rods of v~trying length were struck horlzont lly with ~ reproducible hammer b i B , and force, penetr~tlon ar£ energy v~mlues determined. ~Une study relates to the determln~tion of Sl~f v~:lues ~t v rylng depths. 824198 FIELD INVESTIGATION OF BRITISH !,~COZOIC AND TERTIARY ~gJDSTONEs Gallois, R W; Horton, A 9 J Engng Oeol, V]4, N4, 19tq, P31]-323 Although at first sight rr~r~ of the thick mudstone formations that occur in Britain apse,Jr to consist of uniform lithologies that ~re deeply weathered and r~rely exposed, they can yield sufficient data for detailed str,~tigraphical and structural interpretations to be m~de~ 3uch data includes lithologic~l vari:Jtions and macrofann-~.l changes together with field ~ p p i n g %r~i geophysical borehole logging. 33 refs. 824199 BUILDING SITE ON C.@~