Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils
Methane hydrate within a soil pore space may significantly modify the mechanical behavior of the sediment. Previous studies have shown that the influence of hydrate on methane-hydrate-bearing sediments (MHBS) is dilative through pore-scale kinematic constraining, which in turn affects mechanical pro...
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ASCE (American Society of Civil Engineers)
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ftoceanrep:oai:oceanrep.geomar.de:51167 2023-05-15T17:11:41+02:00 Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils Pinkert, Shmulik Nadav, Dvir 2021-01 text https://oceanrep.geomar.de/id/eprint/51167/ https://oceanrep.geomar.de/id/eprint/51167/1/Pinkert.pdf https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0002395 https://doi.org/10.1061/(ASCE)GT.1943-5606.0002395 en eng ASCE (American Society of Civil Engineers) https://oceanrep.geomar.de/id/eprint/51167/1/Pinkert.pdf Pinkert, S. and Nadav, D. (2021) Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils. Journal of Geotechnical and Geoenvironmental Engineering, 147 (1). Art.Nr. 04020148. DOI 10.1061/(ASCE)GT.1943-5606.0002395 <https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0002395>. doi:10.1061/(ASCE)GT.1943-5606.0002395 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2021 ftoceanrep https://doi.org/10.1061/%28ASCE%29GT.1943-5606.000239510.1061/(ASCE)GT.1943-5606.0002395 2023-04-07T15:53:05Z Methane hydrate within a soil pore space may significantly modify the mechanical behavior of the sediment. Previous studies have shown that the influence of hydrate on methane-hydrate-bearing sediments (MHBS) is dilative through pore-scale kinematic constraining, which in turn affects mechanical properties such as strength and stiffness. This paper presents a new analytical–empirical approach for evaluating kinematic aspects of MHBS. The suggested approach incorporates explicit experimental kinematics data of the host soil together with an analytical amplification factor. Based on known stress-dilatancy expressions, this analytical factor is found with a strong relation to stress ratios of MHBS to host soil during mechanical testing. A stress ratio model is suggested, which is developed based on a thorough study of various stress ratios from test results of both artificial and natural methane-hydrate-bearing sediments from different works. Using the suggested approach, mechanical models may consist of fewer model parameters, which may increase the model efficiency and yield a deeper understanding of fundamental mechanical characteristics of MHBS. Article in Journal/Newspaper Methane hydrate OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Methane hydrate within a soil pore space may significantly modify the mechanical behavior of the sediment. Previous studies have shown that the influence of hydrate on methane-hydrate-bearing sediments (MHBS) is dilative through pore-scale kinematic constraining, which in turn affects mechanical properties such as strength and stiffness. This paper presents a new analytical–empirical approach for evaluating kinematic aspects of MHBS. The suggested approach incorporates explicit experimental kinematics data of the host soil together with an analytical amplification factor. Based on known stress-dilatancy expressions, this analytical factor is found with a strong relation to stress ratios of MHBS to host soil during mechanical testing. A stress ratio model is suggested, which is developed based on a thorough study of various stress ratios from test results of both artificial and natural methane-hydrate-bearing sediments from different works. Using the suggested approach, mechanical models may consist of fewer model parameters, which may increase the model efficiency and yield a deeper understanding of fundamental mechanical characteristics of MHBS. |
format |
Article in Journal/Newspaper |
author |
Pinkert, Shmulik Nadav, Dvir |
spellingShingle |
Pinkert, Shmulik Nadav, Dvir Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils |
author_facet |
Pinkert, Shmulik Nadav, Dvir |
author_sort |
Pinkert, Shmulik |
title |
Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils |
title_short |
Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils |
title_full |
Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils |
title_fullStr |
Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils |
title_full_unstemmed |
Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils |
title_sort |
analytical–empirical approach for estimating kinematic-response relationships between hydrate-bearing soils and standard soils |
publisher |
ASCE (American Society of Civil Engineers) |
publishDate |
2021 |
url |
https://oceanrep.geomar.de/id/eprint/51167/ https://oceanrep.geomar.de/id/eprint/51167/1/Pinkert.pdf https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0002395 https://doi.org/10.1061/(ASCE)GT.1943-5606.0002395 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
https://oceanrep.geomar.de/id/eprint/51167/1/Pinkert.pdf Pinkert, S. and Nadav, D. (2021) Analytical–Empirical Approach for Estimating Kinematic-Response Relationships between Hydrate-Bearing Soils and Standard Soils. Journal of Geotechnical and Geoenvironmental Engineering, 147 (1). Art.Nr. 04020148. DOI 10.1061/(ASCE)GT.1943-5606.0002395 <https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0002395>. doi:10.1061/(ASCE)GT.1943-5606.0002395 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1061/%28ASCE%29GT.1943-5606.000239510.1061/(ASCE)GT.1943-5606.0002395 |
_version_ |
1766068463853371392 |