Zobrazeno 1 - 10
of 42
pro vyhledávání: '"François Tavenas"'
A COOPERATIVE TESTING PROGRAM WAS CONDUCTED,UNDER THE SPONSORSHIP OF THE AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM), BY 41 SOIL LABORATORIES IN THE UNITED STATES AND CANADA TO DETERMINE VARIATIONS ASSOCIATED WITH GRADATION TESTS, MINIMUM AND M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1162b77fe546346c860b0c8bf4f894f0
https://doi.org/10.1520/stp37862s
https://doi.org/10.1520/stp37862s
Autor:
François Tavenas
THE RESULTS OF A COMPARATIVE TEST PROGRAM REPORTED BY TAVENAS ET AL AT THIS SYMPOSIUM HAVE SHOWN THAT THE RELATIVE DENSITY DETERMINATION IS HIGHLY VARIABLE AND NONREPRODUCIBLE.IN THIS PAPER,THE CONSEQUENCES OF THIS FACT ARE DRAWN. BECAUSE OF THE HIGH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27059e77e5eda536d525c47caa57a542
https://doi.org/10.1520/stp37890s
https://doi.org/10.1520/stp37890s
A testing program has been made on samples of sensitive cemented clays at different times after sampling. When comparing results of unconfined compression tests performed on the field immediately after sampling or in the laboratory the following week
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25aa039e82f6d40c4512079dff201f32
https://doi.org/10.1520/stp39079s
https://doi.org/10.1520/stp39079s
Autor:
François Tavenas
Numerical models, as they are applied presently in geotechnical engineering, present serious weaknesses. Basic features of natural soils behavior are presented, and the differences with the common assumptions in constitutive models are pointed out. S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb3c2054855e883ee54625a263eae3fa
https://doi.org/10.1520/stp28781s
https://doi.org/10.1520/stp28781s
A significant problem, especially in long-term tests, is leakage through the fittings and membrane. To avoid the first of these two sources of error, a cell with fittings enclosed in a back pressure chamber has been developed. To reduce leakage throu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bd9c03aa390e9c11ac5df7a3f572b22
https://doi.org/10.1520/stp29078s
https://doi.org/10.1520/stp29078s
The corrections to account for the changes in the cross-sectional area and for the restraint of the membrane during a triaxial test may vary considerably depending on the actual behavior of the soil specimen. This paper shows how observations and mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6aaa85c1d2fb55520e1f85c14833c00c
https://doi.org/10.1520/stp29110s
https://doi.org/10.1520/stp29110s
A numerical model has been developed, making use of a strain-rate-dependent compressibility law and a permeability-void ratio law, both experimentally established. The numerical program is used to simulate the behavior ofclay specimens submitted to o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa565ff985531ac88175b5e6cec46a4e
https://doi.org/10.1520/stp34624s
https://doi.org/10.1520/stp34624s
Publikováno v:
Canadian Geotechnical Journal. 27:687-692
A re-analysis of the observations and data related to the stability of excavations in clays gives a new insight into the problem. It is shown that for clays with a liquidity index greater than 0.4, the short-term stability can be estimated on the bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f67fd4c4a5d92fa0e8b6bc6feb6f5083
https://doi.org/10.1139/t90-081
https://doi.org/10.1139/t90-081
Publikováno v:
Canadian Geotechnical Journal. 27:568-579
Seven series of tests have been performed on specimens from five natural soft clay sites to determine the variation of the vertical and horizontal permeabilities when the soil is unidimensionally compressed. The results show that the permeability ani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4b9337a43d170026428feef4a73d8dd
https://doi.org/10.1139/t90-072
https://doi.org/10.1139/t90-072
Publikováno v:
Canadian Geotechnical Journal. 27:305-314
The in situ measurement of soil permeability has become an important part of geotechnical engineering. New equipment has made the execution of in situ constant-head tests simple and reliable. However, the theories used for the interpretation of const
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39d436401efbcc2b91dd23ba6a9030ce
https://doi.org/10.1139/t90-041
https://doi.org/10.1139/t90-041