Location
San Diego, California
Presentation Date
27 May 2010, 4:30 pm - 6:20 pm
Abstract
Liquefaction is one of the major causes of damage to civil engineering structures. The shear strength of sandy soil during strong earthquakes is reduced due to exerted energy that is related to increasing of pore water pressure. The absorbed energy calculated through hysteretic stress-strain loops as compared with the exerted earthquake energy is an alternative method to study the liquefaction susceptibility of saturated sandy soil. There are several numbers of remediation methods which reduce the excess pore water pressure such as gravel drains. In the current study seven precisely performed 1-g shaking table tests are conducted. Synthetic Firouzkooh sand was used as the reference soil. The effectiveness of the gravel drains in the model against liquefaction is investigated by energy method. Energy per unit volume absorbed by the soil for every test was calculated. Three gravel drain arrangements and two input motion levels are checked in this study. The results show that absorbed energy concept is an appropriate approach in this kind of complicated problems to study the gravel drains effectiveness. The consumed energy in the different soil elements has a good conformity with the generated pore pressure.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Bahadori, Hadi and Asadzadeh, Gholi, "Evaluation of Gravel Drains Effectiveness Against Liquefaction in Shaking Table Utilizing Energy Method" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 20.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session04/20
Included in
Evaluation of Gravel Drains Effectiveness Against Liquefaction in Shaking Table Utilizing Energy Method
San Diego, California
Liquefaction is one of the major causes of damage to civil engineering structures. The shear strength of sandy soil during strong earthquakes is reduced due to exerted energy that is related to increasing of pore water pressure. The absorbed energy calculated through hysteretic stress-strain loops as compared with the exerted earthquake energy is an alternative method to study the liquefaction susceptibility of saturated sandy soil. There are several numbers of remediation methods which reduce the excess pore water pressure such as gravel drains. In the current study seven precisely performed 1-g shaking table tests are conducted. Synthetic Firouzkooh sand was used as the reference soil. The effectiveness of the gravel drains in the model against liquefaction is investigated by energy method. Energy per unit volume absorbed by the soil for every test was calculated. Three gravel drain arrangements and two input motion levels are checked in this study. The results show that absorbed energy concept is an appropriate approach in this kind of complicated problems to study the gravel drains effectiveness. The consumed energy in the different soil elements has a good conformity with the generated pore pressure.
