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THE
QUARTERLY JOURNAL OF
ENGINEERING GEOLOGY
Vol. I, no. 2 30 July x968 Price 30 shillings
Published by The Geological Society of London
~ld "ROCK" he cracked u n i t
pre.gcure _ wou M you i f were put in
$O Z l r/Ix Y "tOll r l #El~lf lt r " t#e end #iven sfueew'/~
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E.L.E. HOEK TRIAXIAL CELL A complete range of sizes for this unique design of triaxial cell is now obtainable from E.LE. together with all the essential test accessories. Assembly of the rock specimen with attachment of strain gauges is achieved simply and effectively (using a specially formed high pressure rubber mem- brane) without disturbing the hydraulic pressure system. Individual cells for unit specimen sizes within the range 1 inch to 2.125 inch diameter are available.
These cells, operating at pressures up to 10,000 Ib/sq in, provide a major "breakthrough" in both design and successful test technique. Technical appraisal and price list available on request.
~ "ELEPHANTASY'--a light hearted look at Materials Testing--is a regular cartoon feature in our quarterly news-sheet "SELECT'. Are you gettin# a copy ?/ f not, write and let us know,
' 1 |
ENGINEERING LABORATORY EQUIPMENT LIMITED Manufacturers and Designers of Materials Testing Equipment
WOODCOCK HILL . HAREFIELD ROAD �9 R ICKMANSWORTH �9 HERTS
Telephone : Rickmansworth 74251 Cables : E.L.E. Rickmansworth
IJEG i
WYKEHAM FARRANCE HIGH PRESSURE TRIAXIAL
10,000 P.S.I.
EQUIPMENT
. . . . . CONSTANT PRESSURE APPARATUS
FULLY AUTOMATIC WITH A SELF-COMPENSATING BALANCING UNIT
10" DIA TEST GAUGE
RESOLUTION BETTER THAN + 0-15% FULL SCALE READING
Oil movement only occurs when there is a volume change in cell
No pressure pulsation
No hydraulic fluid heating
TRIAXIAL CELL FOR SAMPLES UP TO 2~" DIAMETER
ALL STEEL CONSTRUCTION
PROVISION CAN BE MADE FOR DRAINAGE & PORE WATER MEASUREMENT
The unique hydraulic balancing system incorporated in the ram, eliminates the upward thrust exerted on the ram by the sample confining pressure
WESTON ROAD, SLOUGH, BUCKS. Tel: SLOUGH 23193/25905
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tIII IIIIllli ' ~!!!!i!i!~i::.. "'"" ' \ �9 1" "" / r e q u i r e d
~;~!~i~iiiii~iii~:. �9 "" ' Reinforc ~;~!!!iiiiiiiii: "" "" 7 foot ings
"~;~'!~ i i i ! : " ] " Normal e , " foot i ngs
Sub-~ri f ~= . . . . . L. ,~ p a t / outcrop
- ss' ~'~L[LIII I]11 | IL~ ~ - "~ . . . . . . . . "ULIl] I I lU,I, Boul Jer CAI RNHI LL, AI RDRIE J ~.Lu," Pyotshaw rockhead
SCALE: 1/5000
~ Areas not to be developed
",.~ ~ S t i f f r a f t foundations
~ ] Reinforced s t r i p foot ings required
~T~ Normal s t r i p foot ings s u f f i c ienl Sub-dri f t cos] outcrop
.......... Boulder c lay over
GEOLOGY APPLIED TO THE EVALUATION OF DEVELOPMENT AREAS
The plan above shows an area of proposed development near Cairnhill, Airdrie. The site is covered by a variable thickness of Drift and is crossed by the buried outcrops of several coal seams containing abandoned shallow workings in part unrecorded. The outcrop positions, geological succession and structures were defined by boreholes and trenches, and the differing hazards arising from the old workings were evaluated for separate parts of the area. This enabled the layout and foundation design to be planned with the optimum relationship to the mining and geological conditions. Successful proton magnetometer surveys were also made to locate abandoned shafts. The example is one of many similar studies undertaken by the Wimpey Central Laboratory.
C E N T R A L L A B O R A T O R Y
S P R I N G F I E L D R O A D
H A Y E S �9 M I D D L E S E X
TELEPHONE: 01-573 7744
I11
fi ne e x a m pies of R U S S I A N craftsmanship at real ist ic pr ices Russian-bui l t Microscopes are a
s t r o n g f ea tu re of specia l ised l a b o r a t o r i e s in B r i t a i n t o d a y - - f o r the bes t possible reasons . T h e y are of advanced design, t h e y are ava i l ab l e i m m e d i a t e l y and t h e y are v e r y economica l in cap i t a l expend i tu re .
THE ORTHOSCOPIC/CONOSCOPIC MIN-lO P r o b a b l y the m o s t ve r sa t i l e and bes t -equ ipped microscope of i t s t y p e ava i l ab le a n y w h e r e in the world today , the MIN-10 is designed for o r thoscopic or conoscopic obse rva t ions of t r a n s p a r e n t spec imens in t r a n s m i t t e d or po lar i sed l ight . Magni f i ca t ion range x 17.5 to x 900. F u l l y r o t a t i n g s t age g r a d u a t e d to 360 ~ The comprehens ive op t ica l out f i t inc ludes two add i t i ona l condensers (for use w i th a x 90 o i l - immers ion objec t ive and w i t h a *FYODOROV five-axial s tage) . P r ice comple te s
*Available as an extra.
THE STEREOSCOPIC POLARISIN6 MPS-1 The MPS-1 gives a b r i l l i an t , erect , t h r e e - d i m e n - s ional image of spec imens examined by t r ans - m i t t e d or inc iden t l igh t , n o r m a l or polar ised. Magni f i ca t ion range x 3.6 to • 87.5.Working d i s tance 64 mm. Circular , r o t a t i n g , divided s tage, add i t i ona l r o t a t i n g s t age t i l t e d to angle of 11 ~ Comple te w i t h colour f i l ters, f i rs t order qua r t z compen- s a t i n g p la t e and full r a n g e of op t ica l accessor ies . P r ice s
D e m o n s t r a t i o n of t h e s e a n d a n y o t h e r m o d e l in T.O.E. ' s wide r a n g e of R u s s i a n m i c r o s c o p e s can be a r r a n g e d e i t h e r in y o u r own l a b o r a t o r y or a t T .O.E. ' s s h o w r o o m - - j u s t send a p o s t c a r d a n d we wi l l c o n t a c t y o u i m m e d i a t e l y .
TECHNICAL & OPTICAL EQUIPMENT (LONDON) LTD �9 15-17 PRAED STREET" LONDON �9 W2 �9 Telephone: AMBassador 3181
iv
We have got soil analysi taped
Not long ago, the calculation of soil test results was creating a bottleneckin Foundation Engineer- ing laboratories. Now the business of soil analysis has been speeded up dramatically with the acquisition of the Group ICT 1904 computer.
The readings from consolidation and triaxial tests are programmed and fed into our computer which calculates the results automatic- a l l y - and accurately.
Naturally, clients are pleased with this new service. So are our engineers. While the computer handles laborious, time consum- ing detail, they can devote them-
selves to more valuable study of your specific problems.
Contact us at Leeds or London to find out how we can tape your particular soil analysis problem. And remember-- i f your problem is not on home ground, Founda- tion Engineering operate on a world-wide basis.
Foundation Engineering Ltd., 111 Westminster Bridge Rd. London SE1. WAT 4977 A member of the COSTAIN group of companies
Try
HUNTINGS for the complete range of survey services for Engineering Geology
Geology Geophysics Marine Geology & Geophysics Photogeology Photogrammetric mapping Surveying Volumetric computing
Details and Information Sheets
HUNTING SURVEYS & CONSULTANTS 6, Elstree Way, Boreham Wood, Herts.
Tele: 01:953-6161
LTD
vi
SOIL MECHANICS LTD. In Association with Soil Mechanics- Soletanche Ltd. Soil Mechanics - (Equipment) Ltd. Engineering Laboratory Equipment Ltd. Rock Mechanics Ltd.
Carry out
Site investgation
Ground water control
Underpinning
Grouting
Soil stabilisation
Analysis of foundation engineering problems
Remedial measures to existing foundations
Large diameter bored piles and cylinders
Cast-in-situ piles
Chemical consolidation
Corrosion surveys
Geological surveys
Geophysical services
Soil Mechanics Ltd. 65. Old Church Street. London. S.W.3. Telephone: FLAxman 8111 Telegrams: EDAPHOS, London, S.W.3. Telex 24351
vii
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TO ADVERTISE
Y O U R SERVICES?
PAGES
Details and Rates on application to"
Advertisement Department (Q.J.E.G.)
Geological Society,
Burlington House,
London, W I
o , ,
VII I
GEOLOGI President Secr~riea
Foreign Secretary Treasurer
C A L SOCIETY OF L O N D O N Professor T. N. George, D.SC. PH.D. D-~-SC. F.R.S.F.R.S.E Mr W. B. Harland, M.^. F.R.A.S. Dr H. W. Ball Mr N. L. Falcon, M.A.F.R.S.F.n~r.PEr. Dr W. Bullerwell, F.tNs'r.P.F.R.A.S.
Chairman Secretary
ENGINEERING GROUP EDITORIAL SUB-COMMITI'EE
Mr R. Glossop, B.SC. M.I.C.E.M.LM.M. Mr J. E. Farnaby, M.SC. D.LC. A.M.I.C.E.A.M.LS'rRUCr.E. Dr J. L. Knill, D.I.C.A.R.C.S.
Dr G. Lees, B.SC. A.INST.H.E.
Mr G. E. Satterthwaite, F.R.A.S.
THE QUARTERLY ENGINEERING
JOURNAL GEOLOGY
OF
The Scope of the journal, within the field of engineering geology, will be widely drawn. The journal is open to contributions from Fellows and non-Fellows of the Society, in this country and overseas. Papers will be considered which deal with any of the subjects within the field of geology as applied to civil engineering and mining practice, including rock mechanics, soft mechanics and geotechnics; applied sedimentology, pedology, mineralogy and petrology; geohydrology and hydrogeology; and engineering application of geophysics.
Case histories and review articles of a more general character will also be considered, particularly if these are of a timely nature. It will be editorial policy occasionally to group several related papers together in the same issue.
Editors:
Dr G. Lees, B.SC, A.INST.H.E. Department of Transportation &
Environmental Planning, P.O. Box 363, The University,
Birmingham 1~. Telephone Sdly Oak (o21-s~-) t3ot, ext. g89
Mr G. E. Satterthwaite, F.R.A.S,
Geological Society of London, Burlington House,
Piccadilly, London w i.
Telephone oi-734 2356
Annual subscription: s ($I7.oo), post free
~) x968 THE GEOLOGICAL SOCIETY OF L O N D O N