Documents disponibles écrits par cet auteur

Reduced modulus action in u-section steel sheet pile retaining walls / R. W. Mawer in Journal of geotechnical and geoenvironmental engineering, Vol. 136 N° 3 (Mars 2010) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 3 (Mars 2010) . - pp. 439-444 Titre : Reduced modulus action in u-section steel sheet pile retaining walls Type de document : texte imprimé Auteurs : R. W. Mawer, Auteur ; M. P. Byfield, Auteur Article en page(s) : pp. 439-444 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Steel  piling  Retaining  walls  Design  Soil  structure  interaction  Codes  Eurocodes  Reduced  modulus  action  U-piles  Sheet  piling  Larssen  piles  Composite  action Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : U-section steel sheet piles are used for constructing retaining walls and they are connected together to form continuous walls using sliding joints located along their centerlines. Interpile movement along these joints can, in theory, reduce strength by 55% and stiffness by 70%, in comparison with the performance of piles in which no slip occurs (full composite action). This problem of interlock slippage is known as reduced modulus action (RMA). Despite the potential for this problem, it is common practice in many countries to ignore RMA in design, although the exact conditions governing when it becomes a design issue are not fully understood. This paper presents results from an investigation into this problem using experimental tests carried out using miniature piles. Unlike previous studies these tests were carried out using a similar load arrangement to that found in practice. The investigation indicates that the loading configuration affects the development of RMA and that friction between pile interlocks has the potential to mitigate much of the effect of RMA. A numerical model simulating the tests was developed and it has been used to model full-scale piles. The study indicates that many commonly occurring forms of steel sheet pile walls are unlikely to exhibit significant problems from RMA and this is relevant to pile design using Eurocode 3: Part 5. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JGGEFK&smode=strres [...] [article] Reduced modulus action in u-section steel sheet pile retaining walls [texte imprimé] / R. W. Mawer, Auteur ; M. P. Byfield, Auteur . - pp. 439-444. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 3 (Mars 2010) . - pp. 439-444 Mots-clés : Steel  piling  Retaining  walls  Design  Soil  structure  interaction  Codes  Eurocodes  Reduced  modulus  action  U-piles  Sheet  piling  Larssen  piles  Composite  action Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : U-section steel sheet piles are used for constructing retaining walls and they are connected together to form continuous walls using sliding joints located along their centerlines. Interpile movement along these joints can, in theory, reduce strength by 55% and stiffness by 70%, in comparison with the performance of piles in which no slip occurs (full composite action). This problem of interlock slippage is known as reduced modulus action (RMA). Despite the potential for this problem, it is common practice in many countries to ignore RMA in design, although the exact conditions governing when it becomes a design issue are not fully understood. This paper presents results from an investigation into this problem using experimental tests carried out using miniature piles. Unlike previous studies these tests were carried out using a similar load arrangement to that found in practice. The investigation indicates that the loading configuration affects the development of RMA and that friction between pile interlocks has the potential to mitigate much of the effect of RMA. A numerical model simulating the tests was developed and it has been used to model full-scale piles. The study indicates that many commonly occurring forms of steel sheet pile walls are unlikely to exhibit significant problems from RMA and this is relevant to pile design using Eurocode 3: Part 5. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JGGEFK&smode=strres [...]