Dépouillements

Rockfall impacts on sheltering tunnels / F. Calvetti in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 865 –876 Titre : Rockfall impacts on sheltering tunnels : Real-scale experiments Type de document : texte imprimé Auteurs : F. Calvetti, Auteur ; C. Di Prisco, Auteur Année de publication : 2012 Article en page(s) : pp. 865 –876 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Full-scale  tests  Soil/structure  interaction  Landslides  Design  Tunnels Résumé : In this paper the results of a series of rockfall impact tests on a sheltering tunnel are discussed. A reinforced-concrete (RC) sphere (mass 850 kg, diameter 0·9 m) was dropped (falling height ranging between 5 m and 45 m) on a tunnel along a road in the Dolomites. This experimental programme represents the extension of a previous one, performed at Politecnico di Milano (Campus Bovisa), when the same RC sphere was dropped on a circular pool filled with a loose sand stratum. The new programme is characterised by larger falling heights and the monitoring of the mechanical response of the shelter. A series of instruments have been employed to measure impact forces, stress propagation within the absorbing soil stratum on top of the shelter, and its deflection. The results, which are in good agreement with available literature data, are presented with the aim of highlighting the features of the complex impact event and discussing the engineering factors to be considered for conceiving a realistic and reliable design approach. The main conclusion is that the impact force is unaffected by the presence of the plate, and that the stress increment on the structure is slightly reduced by the structure deflection, which can be neglected for design purposes without unreasonable levels of conservatism being introduced. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.9.P.036 [article] Rockfall impacts on sheltering tunnels : Real-scale experiments [texte imprimé] / F. Calvetti, Auteur ; C. Di Prisco, Auteur . - 2012 . - pp. 865 –876. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 865 –876 Mots-clés : Full-scale  tests  Soil/structure  interaction  Landslides  Design  Tunnels Résumé : In this paper the results of a series of rockfall impact tests on a sheltering tunnel are discussed. A reinforced-concrete (RC) sphere (mass 850 kg, diameter 0·9 m) was dropped (falling height ranging between 5 m and 45 m) on a tunnel along a road in the Dolomites. This experimental programme represents the extension of a previous one, performed at Politecnico di Milano (Campus Bovisa), when the same RC sphere was dropped on a circular pool filled with a loose sand stratum. The new programme is characterised by larger falling heights and the monitoring of the mechanical response of the shelter. A series of instruments have been employed to measure impact forces, stress propagation within the absorbing soil stratum on top of the shelter, and its deflection. The results, which are in good agreement with available literature data, are presented with the aim of highlighting the features of the complex impact event and discussing the engineering factors to be considered for conceiving a realistic and reliable design approach. The main conclusion is that the impact force is unaffected by the presence of the plate, and that the stress increment on the structure is slightly reduced by the structure deflection, which can be neglected for design purposes without unreasonable levels of conservatism being introduced. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.9.P.036

Unified CPTu-based probabilistic model for assessing probability of liquefaction of sand and clay / C. H. Juang in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 877 –892 Titre : Unified CPTu-based probabilistic model for assessing probability of liquefaction of sand and clay Type de document : texte imprimé Auteurs : C. H. Juang, Auteur ; Ching, J., Auteur ; C. S. Ku, Auteur Année de publication : 2012 Article en page(s) : pp. 877 –892 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Earthquakes  Sands  Clays  Pore  pressures  Statistical  analysis  Liquefaction  In  situ  testing  Plasticity Résumé : In this paper, a mathematically rigorous process is adopted to derive a piezocone penetration test (CPTu)-based model for assessing the probability of liquefaction/cyclic softening. The new probabilistic model is expressed in the form of a mapping function that relates the liquefaction probability mathematically to the factor of safety obtained from a published deterministic CPTu-based model. The new model is novel because it is applicable to both sand and clay, is more direct (in terms of the usage of CPTu data), is more consistent with a mechanics framework, and allows complete liquefaction assessment (at least for initial screening) without recourse to additional sampling and laboratory testing. Possible variation of the model caused by the variability of the adopted database is investigated and reported. Finally, examples are provided to demonstrate how the proposed model is applied in a future event considering both model and parameter uncertainties. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.9.P.025 [article] Unified CPTu-based probabilistic model for assessing probability of liquefaction of sand and clay [texte imprimé] / C. H. Juang, Auteur ; Ching, J., Auteur ; C. S. Ku, Auteur . - 2012 . - pp. 877 –892. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 877 –892 Mots-clés : Earthquakes  Sands  Clays  Pore  pressures  Statistical  analysis  Liquefaction  In  situ  testing  Plasticity Résumé : In this paper, a mathematically rigorous process is adopted to derive a piezocone penetration test (CPTu)-based model for assessing the probability of liquefaction/cyclic softening. The new probabilistic model is expressed in the form of a mapping function that relates the liquefaction probability mathematically to the factor of safety obtained from a published deterministic CPTu-based model. The new model is novel because it is applicable to both sand and clay, is more direct (in terms of the usage of CPTu data), is more consistent with a mechanics framework, and allows complete liquefaction assessment (at least for initial screening) without recourse to additional sampling and laboratory testing. Possible variation of the model caused by the variability of the adopted database is investigated and reported. Finally, examples are provided to demonstrate how the proposed model is applied in a future event considering both model and parameter uncertainties. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.9.P.025

Dynamic analysis of a smooth penetrometer free-falling into uniform clay / M. Nazem in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 893 –905 Titre : Dynamic analysis of a smooth penetrometer free-falling into uniform clay Type de document : texte imprimé Auteurs : M. Nazem, Auteur ; J. P. Carter, Auteur ; D. W. Airey, Auteur Année de publication : 2012 Article en page(s) : pp. 893 –905 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Offshore  engineering  Numerical  modelling  Site  investigation  Soil/structure  interaction  Shear  strength Résumé : The finite-element analysis of free-falling objects penetrating soil deposits is one of the most sophisticated and challenging problems in geomechanics. A robust numerical method will be described here for dealing with such complex and difficult problems. The approach is based on the arbitrary Lagrangian–Eulerian (ALE) method of analysis, the main features and challenges of which are described briefly in the paper. The ALE method is then employed to perform a parametric study of a perfectly smooth penetrometer free-falling into a uniform layer of clay, which deforms under undrained conditions. The effect of the mechanical properties of the clay soil on the penetration characteristics is presented, and an approximate, closed-form expression is derived for the dynamic penetration factor, N dp. Comparisons are made between the deduced values of N dp and published values of the conventional cone factor, N c, and comparisons are made with experimental data to validate the approach. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.055 [article] Dynamic analysis of a smooth penetrometer free-falling into uniform clay [texte imprimé] / M. Nazem, Auteur ; J. P. Carter, Auteur ; D. W. Airey, Auteur . - 2012 . - pp. 893 –905. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 893 –905 Mots-clés : Offshore  engineering  Numerical  modelling  Site  investigation  Soil/structure  interaction  Shear  strength Résumé : The finite-element analysis of free-falling objects penetrating soil deposits is one of the most sophisticated and challenging problems in geomechanics. A robust numerical method will be described here for dealing with such complex and difficult problems. The approach is based on the arbitrary Lagrangian–Eulerian (ALE) method of analysis, the main features and challenges of which are described briefly in the paper. The ALE method is then employed to perform a parametric study of a perfectly smooth penetrometer free-falling into a uniform layer of clay, which deforms under undrained conditions. The effect of the mechanical properties of the clay soil on the penetration characteristics is presented, and an approximate, closed-form expression is derived for the dynamic penetration factor, N dp. Comparisons are made between the deduced values of N dp and published values of the conventional cone factor, N c, and comparisons are made with experimental data to validate the approach. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.055

Ground deformations and soil–structure interaction of a multi-propped excavation in Shanghai soft clays / C. W.W. Ng in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 907 –921 Titre : Ground deformations and soil–structure interaction of a multi-propped excavation in Shanghai soft clays Type de document : texte imprimé Auteurs : C. W.W. Ng, Auteur ; Y. Hong, Auteur ; G. B. Liu, Auteur Année de publication : 2012 Article en page(s) : pp. 907 –921 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Ground  movements  Case  history  Soil/structure  interaction  Retaining  walls  Earth  pressure  Pore  pressures  Stress  path  Clays  Field  instrumentation Résumé : Ground deformations and soil–structure interaction were monitored at a comprehensively instrumented diaphragm wall panel constructed at a greenfield site. The diaphragm wall retains a 14·5 m deep multi-propped excavation in soft clays in Shanghai, P. R. China. At this greenfield site, the maximum ground surface settlement ( δ v-max) at the end of excavation ranged from 0·25% to 0·32% of the final excavation depth (H e), and the influence zone of ground surface settlement was more than 2·5H e behind the wall. Both the measured δ v-max and the influence zone of ground settlements at this site are generally larger than for excavations in other, more densely built areas of Shanghai. Force and moment equilibrium analyses of the instrumented panel validate the reliability of the measured earth pressures and prop forces. The measured prop loads from this greenfield site are generally larger than those reported from similar excavations in Shanghai. Earth pressure measurements reveal that concreting of the diaphragm wall panel increased the lateral earth pressure coefficients at the soil/wall interface by a factor of more than 1·4. The stress paths for the retained soil within the propped region generally moved towards the passive state during the last few stages of main excavation, and soil near the formation level approached the passive failure state prior to the completion of excavation. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.072 [article] Ground deformations and soil–structure interaction of a multi-propped excavation in Shanghai soft clays [texte imprimé] / C. W.W. Ng, Auteur ; Y. Hong, Auteur ; G. B. Liu, Auteur . - 2012 . - pp. 907 –921. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 907 –921 Mots-clés : Ground  movements  Case  history  Soil/structure  interaction  Retaining  walls  Earth  pressure  Pore  pressures  Stress  path  Clays  Field  instrumentation Résumé : Ground deformations and soil–structure interaction were monitored at a comprehensively instrumented diaphragm wall panel constructed at a greenfield site. The diaphragm wall retains a 14·5 m deep multi-propped excavation in soft clays in Shanghai, P. R. China. At this greenfield site, the maximum ground surface settlement ( δ v-max) at the end of excavation ranged from 0·25% to 0·32% of the final excavation depth (H e), and the influence zone of ground surface settlement was more than 2·5H e behind the wall. Both the measured δ v-max and the influence zone of ground settlements at this site are generally larger than for excavations in other, more densely built areas of Shanghai. Force and moment equilibrium analyses of the instrumented panel validate the reliability of the measured earth pressures and prop forces. The measured prop loads from this greenfield site are generally larger than those reported from similar excavations in Shanghai. Earth pressure measurements reveal that concreting of the diaphragm wall panel increased the lateral earth pressure coefficients at the soil/wall interface by a factor of more than 1·4. The stress paths for the retained soil within the propped region generally moved towards the passive state during the last few stages of main excavation, and soil near the formation level approached the passive failure state prior to the completion of excavation. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.072

Validation experiments for lower-bound shakedown theory applied to layered pavement systems / S. F. Brown in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 923 –932 Titre : Validation experiments for lower-bound shakedown theory applied to layered pavement systems Type de document : texte imprimé Auteurs : S. F. Brown, Auteur ; H.-S. Yu, Auteur ; S. Juspi, Auteur Année de publication : 2012 Article en page(s) : pp. 923 –932 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Pavements  and  roads  Repeated  loading  Deformation Résumé : Experiments involving the application of moving-wheel loads to a series of two- and three-layered pavement systems, involving various soils and unbound granular materials, were used to determine the applied contact pressure ranges within which the structures may be assumed to have developed a ‘shakedown' condition. Shakedown implies that the pavement responds to loading in a resilient manner after some limited plastic deformation during the early load applications. The data were used to assess the validity of applying three-dimensional lower-bound shakedown theory to pavements as a basis for improving pavement design computations. The research indicated that this approach has considerable promise, and that further experimental validation work is desirable. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.050 [article] Validation experiments for lower-bound shakedown theory applied to layered pavement systems [texte imprimé] / S. F. Brown, Auteur ; H.-S. Yu, Auteur ; S. Juspi, Auteur . - 2012 . - pp. 923 –932. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 923 –932 Mots-clés : Pavements  and  roads  Repeated  loading  Deformation Résumé : Experiments involving the application of moving-wheel loads to a series of two- and three-layered pavement systems, involving various soils and unbound granular materials, were used to determine the applied contact pressure ranges within which the structures may be assumed to have developed a ‘shakedown' condition. Shakedown implies that the pavement responds to loading in a resilient manner after some limited plastic deformation during the early load applications. The data were used to assess the validity of applying three-dimensional lower-bound shakedown theory to pavements as a basis for improving pavement design computations. The research indicated that this approach has considerable promise, and that further experimental validation work is desirable. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.050

Experimental investigation of initiation of backward erosion piping in soils / K. S. Richards in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 933 –942 Titre : Experimental investigation of initiation of backward erosion piping in soils Type de document : texte imprimé Auteurs : K. S. Richards, Auteur ; K. R. Reddy, Auteur Année de publication : 2012 Article en page(s) : pp. 933 –942 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Dams  Permeability  Water  flow  Pore  pressures  Sands  Erosion  Constitutive  relations  Laboratory  tests  Embankments  Seepage Résumé : Experiments were conducted on field and laboratory-mixed soils in a new true-triaxial test apparatus to assess factors that influence initiation of piping in non-cohesive and cohesive soils. Three modes of piping behaviour were recognised: concentrated leak erosion, backward erosion, and suffusion. The amount and type of the fines present in the soils significantly influenced the initiation and mode of piping. The presence of non-plastic fines significantly reduced the required seepage velocity to initiate piping (critical seepage velocity), whereas the presence of plastic fines greatly increased the hydraulic gradient required to initiate piping. Concentrated leak erosion occurred along the soil/apparatus interface in soils with plastic fines at very low seepage velocity, but required very high hydraulic gradients. Backward erosion was the primary mode of failure in non-cohesive soils, and this mode required a seepage velocity of 0·8–1·1 cm/s to initiate piping in uniform sand. The critical seepage velocity was found to depend on the magnitude of the stress state, pore pressure, initial void ratio, and seepage direction. It is found that an increase in maximum principal stress and seepage angle and a decrease in void ratio caused an increase in the critical seepage velocity, whereas the minor and intermediate principal stresses did not have a significant influence on piping initiation. However, the influence of intermediate and minor principal stresses may be important for plastic soils prone to hydraulic fracturing. Suffusion was the primary mode of piping in soils that contain very fine non-plastic fines. Initiation of suffusion required seepage velocity an order of magnitude less than that required to induce backward erosion. Once suffusion initiated, it progressed to backward erosion of the soil skeleton at much lower seepage velocity than required for similar soils without non-plastic fines. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.058 [article] Experimental investigation of initiation of backward erosion piping in soils [texte imprimé] / K. S. Richards, Auteur ; K. R. Reddy, Auteur . - 2012 . - pp. 933 –942. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 933 –942 Mots-clés : Dams  Permeability  Water  flow  Pore  pressures  Sands  Erosion  Constitutive  relations  Laboratory  tests  Embankments  Seepage Résumé : Experiments were conducted on field and laboratory-mixed soils in a new true-triaxial test apparatus to assess factors that influence initiation of piping in non-cohesive and cohesive soils. Three modes of piping behaviour were recognised: concentrated leak erosion, backward erosion, and suffusion. The amount and type of the fines present in the soils significantly influenced the initiation and mode of piping. The presence of non-plastic fines significantly reduced the required seepage velocity to initiate piping (critical seepage velocity), whereas the presence of plastic fines greatly increased the hydraulic gradient required to initiate piping. Concentrated leak erosion occurred along the soil/apparatus interface in soils with plastic fines at very low seepage velocity, but required very high hydraulic gradients. Backward erosion was the primary mode of failure in non-cohesive soils, and this mode required a seepage velocity of 0·8–1·1 cm/s to initiate piping in uniform sand. The critical seepage velocity was found to depend on the magnitude of the stress state, pore pressure, initial void ratio, and seepage direction. It is found that an increase in maximum principal stress and seepage angle and a decrease in void ratio caused an increase in the critical seepage velocity, whereas the minor and intermediate principal stresses did not have a significant influence on piping initiation. However, the influence of intermediate and minor principal stresses may be important for plastic soils prone to hydraulic fracturing. Suffusion was the primary mode of piping in soils that contain very fine non-plastic fines. Initiation of suffusion required seepage velocity an order of magnitude less than that required to induce backward erosion. Once suffusion initiated, it progressed to backward erosion of the soil skeleton at much lower seepage velocity than required for similar soils without non-plastic fines. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.058

Small-strain behaviour of cemented soils / J. Trhlikova in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 943 –947 Titre : Small-strain behaviour of cemented soils Type de document : texte imprimé Auteurs : J. Trhlikova, Auteur ; D. Masin, Auteur ; J. Bohac, Auteur Année de publication : 2012 Article en page(s) : pp. 943 –947 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Stiffness  Fabric/structure  of  soils  Laboratory  tests  Constitutive  relations Résumé : The shear modulus of cemented soils at very small strain (G 0) was studied. For artificially cemented clay, G 0 was found to be independent of the mean effective stress until the yield stress. After yield, a significant effect of structure degradation on G 0 was observed. The experimental data were interpreted by an equation, which relates G 0 of cemented soils to mean stress, apparent overconsolidation ratio and the state of structure (sensitivity). The equation was also found to represent G 0 of cemented sands. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.9.P.100 [article] Small-strain behaviour of cemented soils [texte imprimé] / J. Trhlikova, Auteur ; D. Masin, Auteur ; J. Bohac, Auteur . - 2012 . - pp. 943 –947. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 943 –947 Mots-clés : Stiffness  Fabric/structure  of  soils  Laboratory  tests  Constitutive  relations Résumé : The shear modulus of cemented soils at very small strain (G 0) was studied. For artificially cemented clay, G 0 was found to be independent of the mean effective stress until the yield stress. After yield, a significant effect of structure degradation on G 0 was observed. The experimental data were interpreted by an equation, which relates G 0 of cemented soils to mean stress, apparent overconsolidation ratio and the state of structure (sensitivity). The equation was also found to represent G 0 of cemented sands. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.9.P.100

Small strain stiffness of salt-cemented granular media under low confinement / Q. H. Truong in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 949 –953 Titre : Small strain stiffness of salt-cemented granular media under low confinement Type de document : texte imprimé Auteurs : Q. H. Truong, Auteur ; C. Lee, Auteur ; Y. U. Kim, Auteur Année de publication : 2012 Article en page(s) : pp. 949 –953 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : FFabric/structure  of  soils  Laboratory  tests  Stiffness  Waves  and  wave  loading Résumé : The mechanical behaviour of granular soils is affected by particle bonding including natural cementation. This study addresses a simple model of small strain stiffness and salt concentration based on the wave measurements of salt-cemented particulate media. Glass beads with a median diameter of D 50 = 0·5 mm are prepared in rectangular cells using the water-pluviated method in salt water with different concentrations. Piezo disc elements and bender elements embedded in the cell are used for the measurements of the compressional and shear waves. The relationships between the elastic wave velocities and salt concentration show an exponential function. The measured small strain stiffness matches well the predicted small strain stiffness based on the micromechanics of simple cubic monosized spherical particles. This study demonstrates that the salt concentration in a salt-cemented specimen can be evaluated by using elastic wave velocities. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.T.004 [article] Small strain stiffness of salt-cemented granular media under low confinement [texte imprimé] / Q. H. Truong, Auteur ; C. Lee, Auteur ; Y. U. Kim, Auteur . - 2012 . - pp. 949 –953. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 949 –953 Mots-clés : FFabric/structure  of  soils  Laboratory  tests  Stiffness  Waves  and  wave  loading Résumé : The mechanical behaviour of granular soils is affected by particle bonding including natural cementation. This study addresses a simple model of small strain stiffness and salt concentration based on the wave measurements of salt-cemented particulate media. Glass beads with a median diameter of D 50 = 0·5 mm are prepared in rectangular cells using the water-pluviated method in salt water with different concentrations. Piezo disc elements and bender elements embedded in the cell are used for the measurements of the compressional and shear waves. The relationships between the elastic wave velocities and salt concentration show an exponential function. The measured small strain stiffness matches well the predicted small strain stiffness based on the micromechanics of simple cubic monosized spherical particles. This study demonstrates that the salt concentration in a salt-cemented specimen can be evaluated by using elastic wave velocities. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.T.004

Estimating hydraulic conductivity from piezocone soundings / J. C. Chai in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 955 –956 Titre : Estimating hydraulic conductivity from piezocone soundings Type de document : texte imprimé Auteurs : J. C. Chai, Auteur ; P. M. A. Agung, Auteur ; T. Hino, Auteur Année de publication : 2012 Article en page(s) : pp. 955 –956 Note générale : Génie Civil Langues : Anglais (eng) Note de contenu : Discussion ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.12.D.001 [article] Estimating hydraulic conductivity from piezocone soundings [texte imprimé] / J. C. Chai, Auteur ; P. M. A. Agung, Auteur ; T. Hino, Auteur . - 2012 . - pp. 955 –956. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 955 –956 Note de contenu : Discussion ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.12.D.001

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