121A

795206 INVESTIGATION OF A DAMSITE UTILIZI~ DRILL- HOLE, DOWN-H(K~ GEOPHYSICAL AND SURFACE GEO- PHYSICAL DATA Johnson, R B; John-on, L A Bull Ass E~ Geol, VIS, N3, 1978, P'285-2~

The Imx~osed site of an earth dam for the Bur- eau of Reclamatlon's Nebraska Mid-S~ate Project presents a complex fouxrlation problem involv- img alluvial fill in a buried ch~_r~_ el cut in similar sediments of Tertiary age. Three drill holes provided control of stratigraphy, mater- ial types and ~nit thicknesses. Electric surl g~mm,-rsy logs were run to obtain geophysical data for the materials encountered. Surface geophysics was employed to determine the late- ral extent, chamges in materials and thickness, ard chamnel eomflg~atlon of the units noted in the drill-hole amd geophysical log data.

GEGLOGICAL RECONNAISANCE. TUNING - MINING - ROCK SUPPORT - PO~ PLANT CONSI~ON. CON- TRIBUTIONS TO THE 26TH GEOMECHANICAL CC~QUIL~, AUSTRIAN SOCIETY FOR GEC~ECHANICS, S~T~URG, z3-z~, OCT Z977

Muller, L (~U.tor) Rock Mech, Su~ I 7, 1978, 2691 =

795208 ENGINeeRING GEGLOGICAL INVESTIGATIONS FOR TUN- NEL LOCATION AND DESIGN

Prebble, W M Paper presented to symposium on Tumnellimg

in New Zealand, Hamilton, 1977. NZIE Proc Tech Grps, V3, N3 (G), P2.1-2.11

A review of New Zealand practice, emphasising the problems of diversity of rock anl soil structure and of high tectonic activity. 31 refs.

795209 INVEBTIGATION INTO THE USE OF STRAIN ROSETTES FOR THE MEASUR~ OF PROPAGATING CYCLIC STRAINS

squire, V A J Glaciol, V20, E~3, 1978, P~25-431

795zI0 PRODUCU~ON A~D T~.STING OF SO~ RETAINING Sm~IN- MEASURING PILES (IN RUSSIAN)

Day, Joy, G D; Gir~burg, L K Transp Stroit, NS, May 1978, I%'5

Planning, geotechnical and structural mapping

795211 ENGINeeRING RESOURCE UNIT APPROACH TO ENGINE~- ING LAND-USE PLANNING King, M J Bull Ass Emgng Geol, VIS, N3, 1978, P253-267

The approach combines the ~hysical and engineer- ing properties of lamdfcrm, unconsolidated sur- ficial materials and bedrock into simgle mapp- able units to give a three ~,~usional pers- pective of an area. The paper describes the method anl discUsses how it rosy be applied to engineering land use studies.

795212 ENGINEerING - GEGLOGIC EXPECTATION ~C~EL AS A BASIS FOR THE PROGNOSIS IN UNDERGROUND CONS~RU~ION

Helfrich, H K ROck Meah, SUppl 7, 1978, P13-26 (paper to

26th Gecmechanical Colloquium, Austrian Society for Gecmechanlcs, Salzburg, 13-I~ Oct 1977)

Presents a scheme for plan~ing investigations of emgineering geology with a via~ to m~m~ s- ing the deviation between the @.-~)%echmical pro&,- nosis ~ actual fimdlngs during excavs~ion. The i m ~ e of defining a step-wise investi- gation procedure, axrl of evaluating the level of sufficiency of the methods used, is stressed.

795213 FEASIBILITY OF STORING RADIOACTIVE WASTES IN CGLLMBIA RIVER BASALTS DeJu~ R A Prec lat Int~rr~%ional Sympositmn on Storage

in Excavated Rock Caret-- (Rockstore 77), StOCkholm, 5-8 sept 1977, V3, P747-753. Publ Oxford: Pergamon Press, 1978

• S1~ises the findings to date from this site feasibility study, including charactarisation of the basalts ard their stratification, hydro- logic tests, ard assessment of seismic stability of the Columbia River Basin.

Core recovery, logging, probing, boring and sampling

see also: 795151, 785218

795214 NGMOGRAPH FOR D ~ GE(EDGIC STRUCTURE IN HORIZORTAL DRILL HGLES AND TUNNELS Miller, C H; Msgmer, J E BUll Ass EmgDg Geol, VlS, N4, 1978, F383-386

Gives a homograph devised %o aid in %.he compu- tation of certain u:~ergrourd geologlc-structure problems. 1% employs four factors: (I) horizon- tel length of cored or mined intervals, (2) horizontal amgle between the core hole or tun- nel 8nl direction of dip, ~ ) tr~ dip, and (4) true bed thickness. Amy one of the factors may be determined if the other three are kmownj and the lengths can be in amy unit.

795215 GUIDE TO CGRE LOGGING FOR ROCK ENGINEERING Core Logging Cmmmittee, South Africa Section, AEG

Bull Ass Emgng Geol, VIS, N3, 1978, P295-328

A guide for %he logging of borehole core for rock emgineering purposes is proposed. Only those parameters which are commonly of interest in rock engimeering are described. @1-1~tative descriptions deperding only on visual inspec- tiom and simple mechanical field tests are ~u~d. Pr~,~y core descriptions include descriptions of colour I weathering a fabric, discontinuity surface spacing, hardness, rock ~me and strati- graphic horizon. This is followed by a descrip-