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Movements of articulated conduits under earth dams on compressible foundations
62A
Experimental and numerical techniques
approximately estimating extension strains at the base of low dams by utilizing the results of conventional settlement ~nq!yses.
See also abstracts: 513,514,516,517,646,651.
~6 WILLIAMS, RE Soll meltlmg-a practical trial.8F. TUNNELS AND TUNELLING, V7,N1,JAN-FEB.1975~P44-45. This paper describes an experlment comducted using the subterrene tunnelling system, in which the roof stud side walls of the tunnel were formed by melting a series of 50ram diameter horizontal holes approximately 2m deep in the loose soil fill material.
587 VOSS, EH Efficient pnetmmtic stowing by deplaceable pipelines with lateral dlscharges.-In German. 8F,12R. GLUCKAUF, Vlll, N2,JAN. 1975, I~3-66.
Surface structures See also abstract: 546.
588 SCHLOSSER, R LONG, NT SEVESTRE, F Reinforced earth structures on loose soils. In French. Conference. Session four. 9F,3R. PROC.EIGHTH INT.CONF.ON SOIL MECH.FOUND.ENGNG. MOSCOW, V2.2,1973, P201-205.
589 TROLLOPE, DH Sequential failure in strain-softenlng soils.Conference. Session four.6F, 6R. PROC.EIGHTH INT.CONF.0N SOIL MECH.FOUND.ENGNG.MOSCOW, ~r2.2,1973,P227-232. A h~esis is developed which indicates that failure in simple slopes and embankments involving strain-softenlng materials necessitates only line rupture to produce a klnesmtlcally admissible mechanism. A classifleation of such failures in terms of the number of line ruptures is proposed. The failure of a slope at Aberfan in South Wales is examined in the light of this hypothesis. The case af a granular e m b a r ~ n t on a straln-softening f o u ~ t i o n is examined and a simple design procedure to deal with a second o r d ~ mechanism involving a spreading type failt~e is presented.,
Embankments and embankment dams
SHAITAN, VS Protecting e a r t h e n slopes of hydraulic structures. Textbook.In Russian, with Emglish table of contents.
213R. MOSCOW, STROIIZDAT, 1974, 351P.
592 WILSON, SD Deformation of earth and rockfill dams. In E~smkment-dam Englmeerir~. Textbook. Eds. R.C. Hirschfeld and S.J. Poulos. JOHN WILEY AND SONS INC.,PUB.,NY,1973,52P. The paper presents a record of measur~nents of internal deformations of five major dams which occurred during and followlng construction of the dams. The data is compared and synthesized to some extent.
593 SHERA_RD,JL Embankment dam cracking. In Embankmemt-dam Engineering. Textbook. Eds. R.C. Hirschfeld and S.J. Poulos. JOHN WILEY AND SONS INC.,PUB.,NY,1973,82P. The a 1 ~ o r makes an examination of the problem of cracking of earth-fill dams, reviewing and evaluating experience during the past 15 years. Cracks have been farmed by differential settlement, by hydraulic fracturing and from grouting and other in-situ fluid pressures. Cracks have been found in dams of various designs and having a wide range of heights, in dams constructed of a wide vsriety of soils with good control of material and compaction, and in dams where there was no surface evidence of cracking, and cracks have occurred during first filling ~ also after several years of satisfactory service. The author concludes that cracking in dams is probably much more common than is now realized.
594 MOLISZ# R BARAN, L Field studies of embamkment over peat. Conference. Session four. 3F,1T, 3R. PROC .EIG}£~H INT.CONF. ON SOIL MECH. FOUND. ENGNS.MOSCOW, V2.2,1973, P139-143. Results of studies on a trial embankment, founded on a peat layer, are given. The ~nbankment was made as 100m long section of a future highway. Settlements were measured and the coefficients of long term consolidation were determined and compared against those obtained from oed~meter tests, there were significant differences in the values obtained. A preloading technique was used which resulted in a reduction of the coefficient of long-term consolidation by about fifty percent. Conclusions were also drawn concerning the safe rate of fill construction.
See also abstract: 589.
595 DI~M~, G UNIV. C IV. ENGNG, SOFIA, BG MARKOV,G NIPPLES ENER, PRO'. SOFIA, BG RUTLEDGE, PC~ ~IEVA, L NIPPIES ENER, PRAY. SOFIA, BG GOULD, JP Estimation of the consolidation pattern of waterMovsments of articulated conduits u m d ~ earth dams proof clay cores of earth dams frc~ local materials. on cum~-essible foundations. In Embarkment-dam EngConference. Session two. 5F, 1T, 4R. iueering. Textbook. Eds. R.C. Hirschfeld and S.J. PROC.EIGHI~H INT.CONF.ON SOIL MECH.FOUND.ENGN3,MOSPoulos. COW, 1973, Vl. 3,1973, B65-68. JOHN WILEY AND SONS INC.,PUB.,NY,1973,36P. A method for estimating the stress and strain pattern The paper presents the results of a parametric study of variations during the consolidation of the clay core of the problem based on the assumption of linear elastic a zoned embankment is described in brief snd referred to behaviour of soll and relates m a x ~ horizontal strain at the base of a dam with the maximmm vertical settlement a 64 metres high dam. The practical use of the results of the dam. The authors then present defc~mBtion measure- is described and the influence of the water content of ments taken at 20 dams amd in seven cases the results are the embankment material on the pore pressure values insitu is studied.Auth. given in considerable detail. Comparison of the results of the computations and measurements suggests a means of
Experimental and numerical techniques
approximately estimating extension strains at the base of low dams by utilizing the results of conventional settlement ~nq!yses.
See also abstracts: 513,514,516,517,646,651.
~6 WILLIAMS, RE Soll meltlmg-a practical trial.8F. TUNNELS AND TUNELLING, V7,N1,JAN-FEB.1975~P44-45. This paper describes an experlment comducted using the subterrene tunnelling system, in which the roof stud side walls of the tunnel were formed by melting a series of 50ram diameter horizontal holes approximately 2m deep in the loose soil fill material.
587 VOSS, EH Efficient pnetmmtic stowing by deplaceable pipelines with lateral dlscharges.-In German. 8F,12R. GLUCKAUF, Vlll, N2,JAN. 1975, I~3-66.
Surface structures See also abstract: 546.
588 SCHLOSSER, R LONG, NT SEVESTRE, F Reinforced earth structures on loose soils. In French. Conference. Session four. 9F,3R. PROC.EIGHTH INT.CONF.ON SOIL MECH.FOUND.ENGNG. MOSCOW, V2.2,1973, P201-205.
589 TROLLOPE, DH Sequential failure in strain-softenlng soils.Conference. Session four.6F, 6R. PROC.EIGHTH INT.CONF.0N SOIL MECH.FOUND.ENGNG.MOSCOW, ~r2.2,1973,P227-232. A h~esis is developed which indicates that failure in simple slopes and embankments involving strain-softenlng materials necessitates only line rupture to produce a klnesmtlcally admissible mechanism. A classifleation of such failures in terms of the number of line ruptures is proposed. The failure of a slope at Aberfan in South Wales is examined in the light of this hypothesis. The case af a granular e m b a r ~ n t on a straln-softening f o u ~ t i o n is examined and a simple design procedure to deal with a second o r d ~ mechanism involving a spreading type failt~e is presented.,
Embankments and embankment dams
SHAITAN, VS Protecting e a r t h e n slopes of hydraulic structures. Textbook.In Russian, with Emglish table of contents.
213R. MOSCOW, STROIIZDAT, 1974, 351P.
592 WILSON, SD Deformation of earth and rockfill dams. In E~smkment-dam Englmeerir~. Textbook. Eds. R.C. Hirschfeld and S.J. Poulos. JOHN WILEY AND SONS INC.,PUB.,NY,1973,52P. The paper presents a record of measur~nents of internal deformations of five major dams which occurred during and followlng construction of the dams. The data is compared and synthesized to some extent.
593 SHERA_RD,JL Embankment dam cracking. In Embankmemt-dam Engineering. Textbook. Eds. R.C. Hirschfeld and S.J. Poulos. JOHN WILEY AND SONS INC.,PUB.,NY,1973,82P. The a 1 ~ o r makes an examination of the problem of cracking of earth-fill dams, reviewing and evaluating experience during the past 15 years. Cracks have been farmed by differential settlement, by hydraulic fracturing and from grouting and other in-situ fluid pressures. Cracks have been found in dams of various designs and having a wide range of heights, in dams constructed of a wide vsriety of soils with good control of material and compaction, and in dams where there was no surface evidence of cracking, and cracks have occurred during first filling ~ also after several years of satisfactory service. The author concludes that cracking in dams is probably much more common than is now realized.
594 MOLISZ# R BARAN, L Field studies of embamkment over peat. Conference. Session four. 3F,1T, 3R. PROC .EIG}£~H INT.CONF. ON SOIL MECH. FOUND. ENGNS.MOSCOW, V2.2,1973, P139-143. Results of studies on a trial embankment, founded on a peat layer, are given. The ~nbankment was made as 100m long section of a future highway. Settlements were measured and the coefficients of long term consolidation were determined and compared against those obtained from oed~meter tests, there were significant differences in the values obtained. A preloading technique was used which resulted in a reduction of the coefficient of long-term consolidation by about fifty percent. Conclusions were also drawn concerning the safe rate of fill construction.
See also abstract: 589.
595 DI~M~, G UNIV. C IV. ENGNG, SOFIA, BG MARKOV,G NIPPLES ENER, PRO'. SOFIA, BG RUTLEDGE, PC~ ~IEVA, L NIPPIES ENER, PRAY. SOFIA, BG GOULD, JP Estimation of the consolidation pattern of waterMovsments of articulated conduits u m d ~ earth dams proof clay cores of earth dams frc~ local materials. on cum~-essible foundations. In Embarkment-dam EngConference. Session two. 5F, 1T, 4R. iueering. Textbook. Eds. R.C. Hirschfeld and S.J. PROC.EIGHI~H INT.CONF.ON SOIL MECH.FOUND.ENGN3,MOSPoulos. COW, 1973, Vl. 3,1973, B65-68. JOHN WILEY AND SONS INC.,PUB.,NY,1973,36P. A method for estimating the stress and strain pattern The paper presents the results of a parametric study of variations during the consolidation of the clay core of the problem based on the assumption of linear elastic a zoned embankment is described in brief snd referred to behaviour of soll and relates m a x ~ horizontal strain at the base of a dam with the maximmm vertical settlement a 64 metres high dam. The practical use of the results of the dam. The authors then present defc~mBtion measure- is described and the influence of the water content of ments taken at 20 dams amd in seven cases the results are the embankment material on the pore pressure values insitu is studied.Auth. given in considerable detail. Comparison of the results of the computations and measurements suggests a means of