Dielectric constant determination of soils at L band microwave frequencies

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801064 I ~ C R E ~ T A L RHEC~0GICAL LAW FOR SOILS ARD APPLICR~ION BY THE FINITE w ~ E R ~ MEI'HCO

E~shov, E D; Shevahemko, L V; C~bschewa, I V Merzlo~mye Issled, VIT, 1978, P216-226

Boulon, M; Chambon, P4 Darye, F Rev Fr Geo~ech, N2, Oct i~77, P5-22

801059 INFI/YEN~E C~ LOADING REGIMES ON MECHANICAL m~o~s c~ m~oz~ m~USD ( ~ RUSS~W) SMmmherlma, E P; Zharc~, A A; Emelianova, L V Mer~1~%we Isal~, V17, 1978, F227-235

Surface properties

Physico-chemical properties 801065 DTI~RCVgRIC CONSTANT DET~=MIN~ION OF SOILS AT L ~ MICROWAVE FRE~A~NCIES Ckrasinki, T A; K o e r ~ , R M; L ~ , A E Geote~h Test J, Vl, N3, Sept 1978, PI3~I~O

801060 SHORE KARDhW~S C~ ROCK. TECHNICAL Rabla, H; Brook, N Int J Rock Mech MAn Sci~ vIg, N ~ Oct 1979, P335-336

Describes %he open wire t r a - ~ s s i o n line technique used t o measure dielectric constant values in soils of varying porosity, water co~e~f~, a~d at different ~,~ratures. The frequemcy ramie used is al~ieable %o the location of faults, cavities sm~ s t r u c t u r e s by groumd~robi~g radar.

Repurts en investigation of the l~luence of specimen aize a ~ moisture on the S ~ e ~ mesa Of rock. 801061 EFFECT 0Y SAND GRAIN SHAPE ON INTERPAR~ICLE FRICTION. IRDIRECT ~ S BY RGKE'S SIRESS DII2tTANCY THEORY Frosaard, E Geutechnique, V29, N3, SePt 1979, P3~I-350

Permeability and capillarity 8o~6

PERMEABILITY OF WHOLE AR) J O I ~ BARRE GRANITE Kranz, R 14 Fraz~el, A D; Em~eld~, T In% J Rock Mech Min Sci, V16, ~ , Aug 1979,

Quantitative c h ~ i z a t i o n of samd shal~ in t m of an Aslm~i~y I~rlex Is used to s~udy %he imfluemce of 8regularity on interpartlcle friction. Test results show that Hornets %h~al 1~edlc~iom of ~ ~ y is =or valid f ~ ~ romped ~alcareous particles a ~ d e v a s t a t e ~ spheTicl~y of I ~ Icles influences a s a ~ l ~ ~ n .

The permeability ~f whole a=l ~ o i ~ Berre ~ranlte was m~umred at ~ e s m ~ e s u~ to 2 Ebars. JOl~ed ~m~le8 w ~ e ac%mally s~llt c~lim:lers J o i ~ by m~faces wi~h c o n t r o l l e d surface ro~ueu. S ~ l e s wi~h i~duced ~ t o n fractures were al~o meamwed. P e a ~ e a b ~ t y w u mot a

Time dependent behaviour

t.'real co~f~ni~ 1xessu~e 8 ~

n25-23~

si~le

8o:o62 MC~EL FOR PLASTIC ~

OF RCCK-LIEE ACCOURTIR; FOR THE KINETICS C~ FRACTURE Dragon, A; Mro~, Z Int J Rock Mech Mln Sol, VI6, ~ , Aug 1979, P2~3-2~9

The cons+~n~ s~ress creep bah~vlo~ of rocks is s~u~led. A model is ~ e ~ m ~ e d m ~ S m y i ~ the ass~on that tlme-del~lem~ m:I.ez'ocz'aP.]t..i.1~ is responsible for the " ~ c r o ~ o p i c v l s c o ~ I c defcrma%lom. Irrew~slble v o l ~ c creep is ~,~'-~.ud.ed as %be main eom~e~'n l a the ma~=-tal behavlour f ~ streu-levmls over the 'dlscontlrmlty ~ lo~us which is identified wi%h %he Ini%dml yield Ixxln~. A modified fcmmali~ of plasticity %he~Ey is used w1%h a scalar eracEd~_-ity parameter. The s " ~ a d ~ s ' ~ t e am:l tertiary creep stages (u~ to failure) are deacribed by the simplified theory. Identification ~f material parameters Is ~ m s s e d ar~ an example uf creep m~ves for the case ~f h c ~ u s blaxial eum~wesslon is ~Iven %o illus%rate appl/csbil~y of the model. A~h.

~I~3

SOME EFFECTS ~F TEST CONFIGURATION ON SOIL PROPERTIES U N D ~ CYCLIC LDADI~G Pyke, oeo1~ch Test J, VI, N3, Sept 1978, P125-133 The effects on soil 1 : r o ~ i e s of d/ffere~ces between f~he s~ress ar~ defcrmatlon cor~1.itions in cyclic simple shear tests an~ cyclic %rlaxial tests are dts~ussed. Experimental data on a Monterey s e ~ are ~ e ~ n ~ e d a~i t h e ~ are shown t o ~ i v e good a ~ r e ~ e n t between r e s u l t s for t h e %'wotypes ~f test. Account i s tsken of aniso~Topy in c o m ~ shear medulua from triaxlal test resul%s.

~

of ~e

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b e t w e e n ex-

i~er~sl fluid l~es~e. The c ~ of appllc~ion of these ~ e s m = ~ s was found to be important. Permeability h~st~e~is a ~ an ult~m-te decrease in ~pecmmability in both whole a=d Jointed rock resulted when i ~ f l u i d l:'essm'e waa c y c l e d . I t i s ahown ~hat ~tress history a~i J o i n t s~face roughness have a l a r g e effect on t h e h y d r a u l i c ~ r o p e r t i e s of rock.

Compressibility, swelling and consolidation 8o~o67 SWELLING STRAIN I~"~ELO~4ERT IN ~ D ~ A R Y

ROCK IN NGRI'Hm~N ~ YCRK Harper, T R; Appel, G; Pe'~le~ome M W I ~ J Rock Mech Min Sci, %'16, ~ , Oct 1979, P'/'/1-292

U n co m f i n ~ swellimg s t r a i t s developed by sax~istones, s l l t s t o n e e , ahales, ~ y w a e k e a a~i i~erbedded rocks were monitored f ~ perlods of u~ to 150 days. S%ratlgra~, ~ a l ~ , test ~rocedure aml results of conve~iomal 'free swell' ~es~ir6 at constantly h ~ enwiromme~e.al h ~ L i t y are reported. Add/tiomal tests were corrected to investigate 'the imflummce of humid/ties of lower valuej eham@es of h~mldi%y and humidity pa%h u~on sample performance. Kmuwn ;roces~s of ~well and ~hea~es associated wi%h sample extraction ar~ %es%im~ are reviewed ; T i ~ %O I m ~ e t a t l o n of the observed swalli~ b~wlour.

80].068 P~)ICTION OF ~

HEAVE OF S~ELLIR~ SOIL Jn~aon, L D; Sne%hem~ D R Geoteah Test J1 V1, N31 S~q~ 1978, Pi17-124

Methods of charaeterisimg swell behavlour and predlc~img %o~al potential heave of f~-~=~ion