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Evaluation of Dynamics Properties and Liquefaction Potential of Kasai River Sand by Cyclic Triaxial Test
https://orcid.org/http://orcid.org/0000-0001-6547-036X
The present research work examines the dynamics shear modulus, cyclic pore pressure ratio and liquefaction potential of locally available Kasai river sand at medium dense state and at high strain level (>10−4) by displacement-controlled cyclic triaxial test. Kasai river is located in Paschim Medinipur district of West Bengal. This region is seismically bounded by several faults such as Garhmayna Khanda-Ghosh fault, Pingla fault and Eocene Hinge zone. Although this area is under Seismic Zone III, a good number of earthquakes of magnitude around 5.0 in Richter scale have been experienced in recent past. It is known that earthquakes destruction is largely dependent upon dynamic properties. Therefore the study is carried out to keep in mind the safety of the important structures. The dynamic shear modulus and excess pore pressure ratio of Kasai river sand at fully saturated state have been determined for different values of shear strain and confining pressure. The tested sand specimen has been prepared at relative density of 50%. In the displacement-controlled cyclic test, the axial strain amplitude is chosen to be 0.2, 0.3 and 0.5% and frequency is 1 Hz. The shear modulus is decreased and excess pore pressure ratio is increased due to an increase in number of cycles of loading. However the excess pore pressure ratio depends on the magnitude of cyclic shear strain.
Evaluation of Dynamics Properties and Liquefaction Potential of Kasai River Sand by Cyclic Triaxial Test
https://orcid.org/http://orcid.org/0000-0001-6547-036X
The present research work examines the dynamics shear modulus, cyclic pore pressure ratio and liquefaction potential of locally available Kasai river sand at medium dense state and at high strain level (>10−4) by displacement-controlled cyclic triaxial test. Kasai river is located in Paschim Medinipur district of West Bengal. This region is seismically bounded by several faults such as Garhmayna Khanda-Ghosh fault, Pingla fault and Eocene Hinge zone. Although this area is under Seismic Zone III, a good number of earthquakes of magnitude around 5.0 in Richter scale have been experienced in recent past. It is known that earthquakes destruction is largely dependent upon dynamic properties. Therefore the study is carried out to keep in mind the safety of the important structures. The dynamic shear modulus and excess pore pressure ratio of Kasai river sand at fully saturated state have been determined for different values of shear strain and confining pressure. The tested sand specimen has been prepared at relative density of 50%. In the displacement-controlled cyclic test, the axial strain amplitude is chosen to be 0.2, 0.3 and 0.5% and frequency is 1 Hz. The shear modulus is decreased and excess pore pressure ratio is increased due to an increase in number of cycles of loading. However the excess pore pressure ratio depends on the magnitude of cyclic shear strain.
Evaluation of Dynamics Properties and Liquefaction Potential of Kasai River Sand by Cyclic Triaxial Test
https://orcid.org/http://orcid.org/0000-0001-6547-036X
The present research work examines the dynamics shear modulus, cyclic pore pressure ratio and liquefaction potential of locally available Kasai river sand at medium dense state and at high strain level (>10−4) by displacement-controlled cyclic triaxial test. Kasai river is located in Paschim Medinipur district of West Bengal. This region is seismically bounded by several faults such as Garhmayna Khanda-Ghosh fault, Pingla fault and Eocene Hinge zone. Although this area is under Seismic Zone III, a good number of earthquakes of magnitude around 5.0 in Richter scale have been experienced in recent past. It is known that earthquakes destruction is largely dependent upon dynamic properties. Therefore the study is carried out to keep in mind the safety of the important structures. The dynamic shear modulus and excess pore pressure ratio of Kasai river sand at fully saturated state have been determined for different values of shear strain and confining pressure. The tested sand specimen has been prepared at relative density of 50%. In the displacement-controlled cyclic test, the axial strain amplitude is chosen to be 0.2, 0.3 and 0.5% and frequency is 1 Hz. The shear modulus is decreased and excess pore pressure ratio is increased due to an increase in number of cycles of loading. However the excess pore pressure ratio depends on the magnitude of cyclic shear strain.
Evaluation of Dynamics Properties and Liquefaction Potential of Kasai River Sand by Cyclic Triaxial Test
Lecture Notes in Civil Engineering
Dey, Ashim Kanti (Herausgeber:in) / Mandal, Jagat Jyoti (Herausgeber:in) / Manna, Bappaditya (Herausgeber:in) / Vikal, Satya Prakash (Autor:in) / Bhattacharya, Paramita (Autor:in)
Indian Young Geotechnical Engineers Conference ; 2019 ; Silchar, India
Proceedings of the 7th Indian Young Geotechnical Engineers Conference ; Kapitel: 34 ; 317-325
17.03.2022
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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