Well logging of elements Si, Al, Fe and Ca in civil engineering (in French)

77A The "mini' hydrauhc fractunng techmque ts well used to determine m smtustress. In this paper an attempt ts made to adapt the techmque for permeabdtty esumation. Preliminary results compare favourably w~th results from convenuonai transtent pressure testing and laboratory measurement of permeabdtty tn core samples under stmulated m sttu con&tions The technique would allow in sltu stress and permeability determination from one set of data

842326 Instrumentation and analysis of a deep shaft in quartzite Barton, N, Bakhtar, K Proc 24th US Symposium on Rock Mechanics, College Station, Texas, 20-23 June 1983 P371-384 Publ AEG, 1983

84233O Logging and soil mechanics field tests (In French) Bru, J, Ledoux, J L, Menard, J, WaschowskL E lnt Assoc Engng Geol Bull N26-27, Dec 1982-June 1983. P25-32 (Paper to the International Symposmm on Sod and Rock lnvesttgatwns by In Sttu Testing, Parts, 18-20 May 1983) Relates developments and modtficauons to equipment for loggang and mechamcal field tests smmultaneously Borehole parameters and natural radtoacUvtty can be recorded to enable more accurate ldenUficatlon of sod layers Nuclear loggang of densmty using a gamma-gamma device, a penetro-gammadensmmeter and a selfbonng gamma-gamma devtce msalso described

Terra Tek Enganeenng instrumented and momtored a concrete shaft hmng and the surroundmg quartzite at levels 2412ft, 4063ft, and 5191ft dunng smkmg of the Stlver Shaft at Hecla Mmmg Company's Lucky Friday Mme m Wallace, Idaho. Rock dtsplacements were momtored wtth three 50ft long multtpie positron borehole extensometers at each level Stress braidup m the concrete hnmg was momtored w~th four pressure cells at each level, and the correspondmg strams were momtored with embedded strata gauges Data from each level are compared and a detamled analysmsof rock and concrete behawour at the 5191ft level is gaven The results of the rock displacement and concrete hnlng stress momtonng have thrown hght on several tmportant aspects of deep shaft hner design, and on the behavtour of jomted ground at great depth Auth

842331 Underground cavity survey by logging methods (In French) Catlleux, J B, Toulemont, M int Assoc Engng Geol Bull N26-27, Dec 1982-June 1983, P33-42 (Paper to the Internattonal Sympostum on Sod and Rock lnvesttgatmons by In Sttu Testing, Parts, 18-20 May 1983)

842327 Characterization of Gulf Coast fignite overburden far mine planning and design Mathewson, C C Proc 24tk US Symposium on Rock Mechanics, College Station, Texas, 20-23 June 1983 P677-685 Publ AEG, 1983

842332 Density and water content logging applied to soil freezing (In French)

Planning, geotechnical and structural mapping See also 842343

842328 Phased design approach to a nuclear waste repository in hard rock Rajaram, V, Kendorskt, F S, Cummings, R A, Nataraja, M S Proc 24tk US Symposium o n Rock Mechanics, College Station, Texas, 20-23 June 1983 P829-835 Publ. AEG, 1983

Core recovery, logging, probing, boring and sampiing See also 842061, 842173, 842306, 842344

842329 Well logging of elements St, AI, Fe and Ca in civil engineering (In French) Baron, J P, Canou, J int Assoc Engng Geol Bull N26-27, Dec 1982-June 1983, P!7-23 (Paper to the lnternatwnal Symposmm on Sod and Rock Invesngatwns by In Sttu Testing, Parts, 18-20 May 1983) Using a 14 MeV neutron generator of compact destgn, a prototype probe has been developed for operations m smtu m boreholes

Investigates the mfluence of dnlhng parameters and geologmcal factors on dnlhng speed log mterpretatlon A systematmc cahbratlon of logs through cavtty stmulaUon and of correlating the drilhng logs with gamma-ray logs Is proposed An mmportant apphcauon of this slmulauon ts the order of magnitude evaluation of the grout volume necessary for sod tmprovement

Canou, J Int Assoe Engug Geol Bull N26-27, Dec 1982-June 1983. P43-47 (Paper to the Internattonal Sympostum on Sod and Rock lnvesttgattons by In Sttu Testmg. Parts. 18-20 Mat' 1983) Presents a freezing techmque for sod consohdatmon A new electromc devmcewhich provtdes densmty, water content and gamma ray logs ts used to control sod homogenemty and borehole dtameter

842333 Correlations between borehole logging and geotechnieal properties of a stiff Tertiary day (In French) Dethy, B, Neerdael, B int Assoc E n g q Geoi BM! N26-27, Dec 1982-June 1983, P49-57 (Paper to the International Symposium on Sod and Rock lnvesttgations by In Sttu Testing, Parts. 18-20 Mat' 1983) Reviews the stte mvestlgauon of an experimental laboratory at a depth of 223 metres tn a clay layer whmchmsto study the posstbdtty of &sposal of radioacttve waste tn the Boom clay formaUon The soil freezang method ts used for the laboratory and access shaft There ts good correlation between borehole logs and geotechmcal properUes measured in the laboratory for the upper part of the clay formation, but extrapolatmon of the data to greater depths in&cates that the formatton can be subdw~ded into 5 groups

842334 Instantaneous logging in water survey (In French) Deveaux, MarUn; Rech; AlessandreUo, E, Lemome, Y lnt Assoc Emgq Geoi Bull N26-27, Dec 1982-June 1983, P59-63 (Paper to the lnternauonal Symposmm on Sod and Rock lnvestigatwns by In Situ Tesnng. Parts, 18-20 May 1983) Dmscusses the contmuous loggang of mechamcal parameters used m the mvestigaUon of fractured and permeable zones m hmestone, gramte or sandstone It ms concluded that