Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dynamic behavior of cement-stabilized organic-matter-disseminated sand under cyclic triaxial condition
https://orcid.org/0000-0002-2640-042X
Abstract Organic matter–disseminated sand (OMDS) is a problematic soil widely distributed in Hainan Province, China. OMDS is usually stabilized using cementitious materials to improve its bearing capacity. However, there is a lack of understanding of the dynamic characteristics of cement-stabilized OMDS. In this study, a series of unconsolidated undrained stress-controlled cyclic triaxial shear tests were conducted on OMDS samples stabilized by cement and lime. The cyclic triaxial behavior of cement-stabilized OMDS under various confining pressures, curing periods, and cement contents was studied. Through data fittings, the maximum elastic modulus (E max), normalized elastic modulus (E d/E max), and maximum dynamic damping ratio (λ max) were obtained. Then, the effects of cement content, curing time, and initial confining pressure on E max, E d/E max and λ max were systematically analyzed. Finally, the effectiveness of cement stabilization on the dynamic behavior of cement-stabilized OMDS was discussed by comparing the data with that of un-cemented OMDS.
Highlights Dynamic triaxial shear behavior of cement-stabilized organic sand is investigated. E max increases with confining pressure, cement content, and curing time. Normalized dynamic elastic modulus (E d/E max) is independent of confining pressure. λ max reduces with confining pressure, cement content, and curing time.
Dynamic behavior of cement-stabilized organic-matter-disseminated sand under cyclic triaxial condition
https://orcid.org/0000-0002-2640-042X
Abstract Organic matter–disseminated sand (OMDS) is a problematic soil widely distributed in Hainan Province, China. OMDS is usually stabilized using cementitious materials to improve its bearing capacity. However, there is a lack of understanding of the dynamic characteristics of cement-stabilized OMDS. In this study, a series of unconsolidated undrained stress-controlled cyclic triaxial shear tests were conducted on OMDS samples stabilized by cement and lime. The cyclic triaxial behavior of cement-stabilized OMDS under various confining pressures, curing periods, and cement contents was studied. Through data fittings, the maximum elastic modulus (E max), normalized elastic modulus (E d/E max), and maximum dynamic damping ratio (λ max) were obtained. Then, the effects of cement content, curing time, and initial confining pressure on E max, E d/E max and λ max were systematically analyzed. Finally, the effectiveness of cement stabilization on the dynamic behavior of cement-stabilized OMDS was discussed by comparing the data with that of un-cemented OMDS.
Highlights Dynamic triaxial shear behavior of cement-stabilized organic sand is investigated. E max increases with confining pressure, cement content, and curing time. Normalized dynamic elastic modulus (E d/E max) is independent of confining pressure. λ max reduces with confining pressure, cement content, and curing time.
Dynamic behavior of cement-stabilized organic-matter-disseminated sand under cyclic triaxial condition
https://orcid.org/0000-0002-2640-042X
Abstract Organic matter–disseminated sand (OMDS) is a problematic soil widely distributed in Hainan Province, China. OMDS is usually stabilized using cementitious materials to improve its bearing capacity. However, there is a lack of understanding of the dynamic characteristics of cement-stabilized OMDS. In this study, a series of unconsolidated undrained stress-controlled cyclic triaxial shear tests were conducted on OMDS samples stabilized by cement and lime. The cyclic triaxial behavior of cement-stabilized OMDS under various confining pressures, curing periods, and cement contents was studied. Through data fittings, the maximum elastic modulus (E max), normalized elastic modulus (E d/E max), and maximum dynamic damping ratio (λ max) were obtained. Then, the effects of cement content, curing time, and initial confining pressure on E max, E d/E max and λ max were systematically analyzed. Finally, the effectiveness of cement stabilization on the dynamic behavior of cement-stabilized OMDS was discussed by comparing the data with that of un-cemented OMDS.
Highlights Dynamic triaxial shear behavior of cement-stabilized organic sand is investigated. E max increases with confining pressure, cement content, and curing time. Normalized dynamic elastic modulus (E d/E max) is independent of confining pressure. λ max reduces with confining pressure, cement content, and curing time.
Dynamic behavior of cement-stabilized organic-matter-disseminated sand under cyclic triaxial condition
Du, Juan (Autor:in) / Liu, Bingyang (Autor:in) / Wang, Zaicheng (Autor:in) / Zheng, Gang (Autor:in) / Jiang, Ning-Jun (Autor:in) / Zhou, Mingliang (Autor:in) / Zhou, Haizuo (Autor:in)
12.04.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Triaxial behavior of cement-stabilized organic matter–disseminated sand
| Springer Verlag | 2021
Experimental Study on Stiffness Degradation of Organic Matter-Disseminated Sand under Cyclic Loading
| DOAJ | 2022
Experimental Investigation of Cement Treated Sand Behavior Under Triaxial Test
| British Library Online Contents | 2012
Experimental Investigation of Cement Treated Sand Behavior Under Triaxial Test
| Online Contents | 2011
Behavior of zeolite-cement grouted sand under triaxial compression test
| DOAJ | 2020