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'/~

s163 3 w~y

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.

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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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~;~!~i~iiiii~iii~:. �9 "" ' Reinforc ~;~!!!iiiiiiiii: "" "" 7 foot ings

"~;~'!~ i i i ! : " ] " Normal e , " foot i ngs

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- 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

W H Y NOT USE THESE

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