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Effectiveness of frozen ground excavation - In Russian
244A
Vibration 2415 HAUPT, W UNIV. KARLSRUHE, D In-sltu shear w~ve velocity by cross-hole method. Discussion.2F,2R. DEUTSCHE BEIT.ZUR G~0TECHNYK,N2,1974,F38_39. 2416 HAUPT, W UNIV. KARLSRUHE, D Raylelgh w~ve in an inhomogeneous medium.IF. DEUTSCHE BEIT.ZUR G~DTECHN]}(,N2,1974,P35-37. The distortion of a plane Raylelgh.wave by an obstacle below the surface has been ana/ysed by the finite element met2~od. The distribution of the displacement a~lltudes with depth is presented.Auth. 2417 KRISENAWDORTHY,K UNIV. CALIF .B~RKELEY,USA GOLDSMITH,W UNIV .CALIF .B~qK~T ~Y, USA SACKMAN, JL UNIV. CALIF. B~KELEY, USA Measurements of wave processes in isotropic and transversely isotropic elastic rocks. 17F,IT,20R. INT .J.ROCK MECH .MIN. SC I .VII,Ng, SEPT .1974, P367-378.
Classification and identification 2418 BIENIAWSKI, ZT Engineering classification of Jointed rock n~sses. Discussions of paper by Z.T. Bienlawskl, Trans. S. Aft. Instn. Cir. Engrs .VI5, NI2, Dec .1973, and authors reply. 4F,4T,39R. TRANS. S .AFR. INSTN. C IV. ENGRS. VI6, N7, JULY, 1974, P239-
254. D.H. L ~ s c h e r r e p o r t s some ~ d i f i c a t i o n s t h a t he has made to the Bieniawski classification I to suit all mining situations, whether open pit design or the deterruination of hhe cavsbillty of ore. A support guide for underground excavations with stresses less than 30MPa is presented. L.C. Wilson comments on the general applicability to gsomechsnics claimed by the author and suggests some alterations to the scheme of classification to improve this. M.J. Mountain suggests that the classi. faction be extended to take into account studies of unconfined rock slopes. P.J. Pells oonments on some groundwater aspects of t h e Bieniawskl scheme and proposes some alterations. F. Netterberg considers the author's paper to be a significant advance in dealing with Jointed rock, but feels certain =odlflcations to be necessary. These are concerned mainly with the need for greater consideration of the weaker, more weathered, near-surface rocks most frequently encountered in the Southern Hemisphere. The contribution from the Co~mLittee on Standardization of Core logging for Civil Engineering Purposes includes several critical con~nents concerned with the difference between description and classification, compressive strength, Joint spacing, seismic characteristics and input data form. b.A. Williams comments on the al~pllcability of the classification, especially with regard to design problems in founding dams on rock or in major excavations or in large scale siopes. In reply the author lists several revisions that have been n~de to the classification since the original paper was written. He then answers the discussions individually.
Geology See abstract: 2345.
Mechanism of faulting and folding 2419C CHAPPELL, J Stress field associated with a dense fault pattern in New Guinea. 7F,IT,28R. J .G~DLOGY, 1973,12P.
Environmental effects,weathering and soil formation 2420 FRENCH, HN Mass-wastlng at Sachs harbour, Banks Island, N.W.T. Csnada. 15R. ARCTIC AND ALPINE RES.V6(1),WINT~,I974,P71-78. 2421 GIDIGASU, MD Degree of weathering in the identification of laterite materials for engineering purposes. A review. 18F, 12T,161R. ENGNG. GB01DGY, V8, N3, OCT. 1974, I>213- 266. In the first part of this review, the author summarizes information on the significant genetic characteristics which appear to underlie the devlatlon of engineering behaviour of laterite materials from the expected propertles based upon conventional soll mechanics as developed for temperate-zone soils. The second part summarlz available information on the identification of significant geotechnlcal properties of various grades and genetic groups of laterlte materials for engineering purposes. The engineering behaviour of laterlte materials forms the substance of the third part of the paper. Autr
I=arthquake mechanisms and effects 2422 WANG, CY UNIV. CALIF . B ~ K ~ , USA Earthquake prediction and oriented mlcrocracks in rocks. IF, SR. NATURE, V251,OCT I~TH,1974, P405-406.
Frost action,permafrost and frozen ground See also abstracts:
2351,2509,2517.
2423 VoLKOVA, #E Excavators for frozen ground - In Russian. N~fHANIZATS IIA TRO ITELSTVA, N6, JUNE, 1974, P21. 2424 NECHEZHELENEO, BV GOLOVACH, IP Effectiveness of frozen ground excavation - In Russian. 4R. MIN .VYSS. SRED. SPETS IAL .OBRAZ. IZVEST.VYSS.UCHEB. ZAVEDNII. STRO ITEL. ARKHIT~(. SU. N5,1974, p 58-161.
Vibration 2415 HAUPT, W UNIV. KARLSRUHE, D In-sltu shear w~ve velocity by cross-hole method. Discussion.2F,2R. DEUTSCHE BEIT.ZUR G~0TECHNYK,N2,1974,F38_39. 2416 HAUPT, W UNIV. KARLSRUHE, D Raylelgh w~ve in an inhomogeneous medium.IF. DEUTSCHE BEIT.ZUR G~DTECHN]}(,N2,1974,P35-37. The distortion of a plane Raylelgh.wave by an obstacle below the surface has been ana/ysed by the finite element met2~od. The distribution of the displacement a~lltudes with depth is presented.Auth. 2417 KRISENAWDORTHY,K UNIV. CALIF .B~RKELEY,USA GOLDSMITH,W UNIV .CALIF .B~qK~T ~Y, USA SACKMAN, JL UNIV. CALIF. B~KELEY, USA Measurements of wave processes in isotropic and transversely isotropic elastic rocks. 17F,IT,20R. INT .J.ROCK MECH .MIN. SC I .VII,Ng, SEPT .1974, P367-378.
Classification and identification 2418 BIENIAWSKI, ZT Engineering classification of Jointed rock n~sses. Discussions of paper by Z.T. Bienlawskl, Trans. S. Aft. Instn. Cir. Engrs .VI5, NI2, Dec .1973, and authors reply. 4F,4T,39R. TRANS. S .AFR. INSTN. C IV. ENGRS. VI6, N7, JULY, 1974, P239-
254. D.H. L ~ s c h e r r e p o r t s some ~ d i f i c a t i o n s t h a t he has made to the Bieniawski classification I to suit all mining situations, whether open pit design or the deterruination of hhe cavsbillty of ore. A support guide for underground excavations with stresses less than 30MPa is presented. L.C. Wilson comments on the general applicability to gsomechsnics claimed by the author and suggests some alterations to the scheme of classification to improve this. M.J. Mountain suggests that the classi. faction be extended to take into account studies of unconfined rock slopes. P.J. Pells oonments on some groundwater aspects of t h e Bieniawskl scheme and proposes some alterations. F. Netterberg considers the author's paper to be a significant advance in dealing with Jointed rock, but feels certain =odlflcations to be necessary. These are concerned mainly with the need for greater consideration of the weaker, more weathered, near-surface rocks most frequently encountered in the Southern Hemisphere. The contribution from the Co~mLittee on Standardization of Core logging for Civil Engineering Purposes includes several critical con~nents concerned with the difference between description and classification, compressive strength, Joint spacing, seismic characteristics and input data form. b.A. Williams comments on the al~pllcability of the classification, especially with regard to design problems in founding dams on rock or in major excavations or in large scale siopes. In reply the author lists several revisions that have been n~de to the classification since the original paper was written. He then answers the discussions individually.
Geology See abstract: 2345.
Mechanism of faulting and folding 2419C CHAPPELL, J Stress field associated with a dense fault pattern in New Guinea. 7F,IT,28R. J .G~DLOGY, 1973,12P.
Environmental effects,weathering and soil formation 2420 FRENCH, HN Mass-wastlng at Sachs harbour, Banks Island, N.W.T. Csnada. 15R. ARCTIC AND ALPINE RES.V6(1),WINT~,I974,P71-78. 2421 GIDIGASU, MD Degree of weathering in the identification of laterite materials for engineering purposes. A review. 18F, 12T,161R. ENGNG. GB01DGY, V8, N3, OCT. 1974, I>213- 266. In the first part of this review, the author summarizes information on the significant genetic characteristics which appear to underlie the devlatlon of engineering behaviour of laterite materials from the expected propertles based upon conventional soll mechanics as developed for temperate-zone soils. The second part summarlz available information on the identification of significant geotechnlcal properties of various grades and genetic groups of laterlte materials for engineering purposes. The engineering behaviour of laterlte materials forms the substance of the third part of the paper. Autr
I=arthquake mechanisms and effects 2422 WANG, CY UNIV. CALIF . B ~ K ~ , USA Earthquake prediction and oriented mlcrocracks in rocks. IF, SR. NATURE, V251,OCT I~TH,1974, P405-406.
Frost action,permafrost and frozen ground See also abstracts:
2351,2509,2517.
2423 VoLKOVA, #E Excavators for frozen ground - In Russian. N~fHANIZATS IIA TRO ITELSTVA, N6, JUNE, 1974, P21. 2424 NECHEZHELENEO, BV GOLOVACH, IP Effectiveness of frozen ground excavation - In Russian. 4R. MIN .VYSS. SRED. SPETS IAL .OBRAZ. IZVEST.VYSS.UCHEB. ZAVEDNII. STRO ITEL. ARKHIT~(. SU. N5,1974, p 58-161.