Baseline evaluation of recent EDM systems

Baseline evaluation of recent EDM systems

SI'ABILIZATIONOF~ SOILSAND 775176 ECOIKMIC GRAVELS Gilpin,A E Ph D thesis,Carnegie-Mellon Univ,19’75, 146 Reportsa studyof the application of the stab...

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SI'ABILIZATIONOF~ SOILSAND 775176 ECOIKMIC GRAVELS Gilpin,A E Ph D thesis,Carnegie-Mellon Univ,19’75, 146 Reportsa studyof the application of the stabilizingI&eriale(ceulent, lime,aniflyash) to a tropical6011;Threetypes of soilsfrcol SierraLeonewere used,laterite,non-la&rite ti lateritic; Resultsobtainedf-ran enviroxuextal ani X-raydiffraction testsdo not illdlcatetheformationaf anynevmaterisl. Pore wessureresponsedecreaseswith increase in additives: Percentof stabilizing material increases the frictional resistanceof the soil.The cohesiveresistance does not Increase appreciably. FlyashIs an effectivestabilizer for these*s of soilsani reactsm*e favakablywhen combinedwith ce.nent axl lime. The most effectiveani economicadditiveis cement. Avail:UnivereityMicrofilms, 18, BedfordRw, Loxxi0nWCl.R 4W, UK Soil compaction OF SETTLINGGROURDCCMPACTION 775177 CONSI'IIONS DURINGMOISTERING(IN RUSSIAN) D&aatov,BI Leningrad: Inzh-strait Inst NauchTr Rll2;1976 p15-18 BASE ARDBASECOURSE 775178 C@@ACTIONOF BITUMINOUS m AND ITS RELATIONTO PAVFMEIVJ! PERFORMANCE Lister,NW; Pwell, W D TrsnsportgRoad ResesrchLab reportSR 260, 1977 Reportsan Investigation of the degreeof compactioncurrentlybeing achievedby contract~sarxlits variationacrossthe road width.The influeme of void ratioani birder contenton tie dynamicmoiulusarrldeflection of exparimexrtslpavenents is al60 repartedani it is concltiedthatimproving the canpaction of densecoatedIPacsdamdoesimprovepavement perfcn?nance, lntermsofloadspreading abilityani fatigueresistance. Avail:TRRL,OldWokinghamRosd,Crcutharne, Berks,UK OF CCMPACl'ED SOILS 775179 PORE SIZEDISIRIBUTION AFTERCRITICALRIGIONDRYING Bhasin,R N Ph D thesis,PurdueUniv,1975, 242P The majorobjectiveof the researchwas to developanimprovedinsightintothesoil canpaction processin terms of the pure size distribution resulting from variations of the soil compaction variables,ani of the chaages in&is parameteraris* as aresultof exposlrgcompactedsoilsto soakinguxier a moderatebarge, thus pertlysimulating servicecorrlitions. Avail:UtiversityMicrofllms,18, BedfordRow, Lotion WClR 4EJ, UK

CC%lPACl'ION OF SCIL 775180 TtIEoRyFORVIBRATORY Yoo, T S Ph D thesis,New York StateUniv,Buffalo,

1975, P5P Reportsan investigation of the mechanism by whichvibratcoys~llooth-drum rollersachieve cctnpaction anl the factorswhich influence the results.A mathematical model was developed fcr representingthe dynamicresponseof the soil-m&&e system;Laboratoryscale-model. rollertestson soil layerswere cotiucted to investigate the relationahip betweenthe parameters of the rollerani the soil,tithe amountof compsction. Full-scale fieldtests with instrumented vibratorycompactors were performedto evaluatethe proposedtheoriessrd obtainvaluesof the systemparameters. Avsil:UnLversity Microfilms, 18, B&ford Row, Lorxl0nWCl.R 4EJ, UK

Site Investigationand Field Observation 775181BOREROLEDISPLACEMENT GAUGE.TECRNICALNOTE Golclsadth, P R; Hughes,J M 0 Geotechnique, V27, N2, 1977,P245-252 Describesa simple,inexpensive meansfor det-erminixg the pcfile of aboreholeliner (a 75nmdiamter PVC domesticdwnpipe). Movementsof the soil surrourdiag theborehole sre reflectedin distortion of the tube in the ssmemanneras slopsindicator tubes.The operation is entirelymtxhanical snddws not requireexpensiveelectronic equipment.

Planning, geotechnical

and structural mapping

775182BASELINEEVALUATIONOFRECZN.CHlMSYSFEMS Hodges.DJ; Curl,s J Univ Not&in&amKin Dept Mag, V28, 1976, p37-46 Fourteendifferent electronic distancemeasurement systemswerecanpared,anitheir accuracy was assessed.TheMekometer~CCG gaveresults very closeto themeanof sll the instruments.

Core recovery, logging, prpbing, boring and sampling OF GEOPHYSICAL WELL LCGGINGTo COAL 775183 APPLICATION MININGOPERATIONS Kwalski,J; Fertl, WH EnergySources,V3, R2, 1977,Pl33-147 Recentadvancesinthe design ofwi.relineloggiDg equi~raent (initlsllydesignsdfor the petroleum itiustry)anii~ovedccmputerizedaaalyses of theselcggingmeasurements providereliable information for coal evaluation ard associated miningoperations. Properlyappliedwell log analysisconceptssllw a continuous, in situ evaluation of coal seamsincluding thickness,