Simulation of gravitational water movement in soil

Classification

and identification &eves,

775059C!LAS?IFICXt'ION (F CHAIXUSINGAN IMPACTCRUSHING TEST IngdLdbY# RC Repute the devel~eltt of a new test at the Transported RoedResearchLab,eddescribes the test and Its application, particulsrly as itrelates to chalkedadment.13.

Geology Earthquake mechanisms

and effects

775060 ~IcALMoDELFQRLIQJEFAcrIoIv Lieu, C P; Streeter,VL; Richart,FE J Ge&&c&E~ Div, ASCE,VlO3,NQI6,1977, A nunericslmodelfcrliquefectioninlevel or nearlyhcdzontal on~dimensionalsarddeposits is canstltutedbycoupled shearwaveedpressure wave motions.Its potentialamicability is demonstrated by case studiesof the 1964 Niigata earthquake. 775061 SOILLI~ACl!IONPROCEZURES-AREVIEW Valera,JE; Donovan,NC J GeotechEw,ngDiv, ASCE,V103,NGT6,1977, m-625 Procedures used far evaluating soil liquefaction srerevlewedardccmparedwithem@asisplaced OntheequivalentunifaP‘mcycle~thec~ative &smegeamcaches. Simplified versionsof these b&o proceiures give gocd sgreementwith observedbehaviourin 41 actualcaseswhere liquefactionhas ar has not occurredin earl&quakes.

Hydrogeology Groundwater 775062 SOMEHXDRCG~ICALASPEKTSGFHILL.SIDESIN SOUTHWALES Da-ton, G; N&e, J S; Siddle,H J Proc ConPerenceonRockEx&neerillg (Newcastleupo*ryne, 4-7 April 19-l-7), -3-439 During ~epasteightyears,aplroximately120 tips andtip canplexesinSouthWsleshavebeen investigate&attherequesttithe NgtionalCoel Board.Itbecameapparentataneerlystageufthe iwestdgations,that a stuiyof thehydrcgeology wasaprerequisiteof anaccurateassessment of tipsecuri~.Thi6paperoutlinessanec&t&? hydrogedlaglcalaspecteirnralvcd,tcgetbcrwi~ the costbenefituf the investigationtechdques used;References to specificexamplesare given fruu sane c8 thegeolagicallyxrelxterestirg sites.Auth.

M J Proc Coaderence onRockEx@meri upon-Tyne, 4-7 Ap_ll l~)Pd&!ffdvcss=

Ingeolcgioaltime,aquifersbecomsinzreasingly relianton secorxlary discontinuities far tie transmission a& to a lesserextent,the dxxage ofwater.This ten%!IlcyisclesrlydezQMratai by the earlyMesozoic ani Paleeozoic aquifers of the UnitedICiz&an. Agrad deal of conventional groudwatcrflow analysis atxl well hydraulics is based ontbe conceptof horizontsllsmlxmr flow In an isotr~plc hcmogeneous aquifer.Fissured rocka tarI to be inhamgemman and anisotropic axigroudwater flov,perticulsrly ontbe scaleof most civilengineer* sites,Is oftenneither horizontelncx leminar.In& situations the appllcationadinterpretationof cowentioml enslytical techniques de-6 extrcnrcaution. The unpredictsbilityof fissureflat ona scale otherthsnregionalleadstodifficultiesinthe presentation, interpretation ard comnmicgtion ofhydrogeologicsldatafor suchaquifers.Even thenmsgredatathatis currentlyavailable can be used to provideestim3tesof the probebllity of certainspsci.fied conditionsbeingfulfllled. Dataonthehydrogeologlcalsignificance of rock discontinuities couldimprovebath me objectivity and reliability of such estimxtes. Au&. 775064 R~OFCARBO~ROCIGTIN~IFYIXEKT~EME FLowBEEiAVIwR White,EL Ph D thesis,Pennsylvania StateUniv,1975, 176~ Reportssn analysis of 62 carbonrstebesinswithin theAp@achianhighlan¶sfranPennsylvaniato Alabamawithresgectto~eir~~,bclainard kerstchsractaist1cs. Avail:University Microfilms, 18 BezLfard Rar, Loni0nWCl.R 4EJ, UK 775065 SIMUL4TIONOFGRAVI!I!A!TIONALWA!l'ERMovaiIEnr IN SOIL l&i-i, N Ph D thesis,ColaredoStateUnlv,1975,l38P An&hematicalmodelisdevelopedusi~ the transientsoilmoisturedatawhich sixdates the movementaf gravitaticnaalwater lnpsrtially saturatedsoil.Ihe timedistzlbutionofnatural groundwaterrecharge is evsluatedusirg this sinnilation model.A methodfor deterdmtion of h@raulic properties of soilfrom transientsoil molsturedataisdeveloped. lbemetbodof sinnalationutilisesthe phexunenon that the moisture content of unsaturated sollbelcn9 the 20~ of Influenceof evapotranspiration variesin the linearrelationship. Relationships of soil moirrturedFPfualvityandunsatrrratedhydraulic ccnductivityasaiun?tlonofmoisturecontent sre established. The malifiedRichsd*sequation detectsthe waterflov eventier constantsoil moistureconiitions. Avdl:UtiversityMicrofllms,l8 BeardRow, LorrQnwclR4EJ,UK