Location
San Diego, California
Presentation Date
30 Mar 2001, 1:30 pm - 3:30 pm
Abstract
Soils and rocks are characterized by their highly nonlinear behaviors. This makes it very difficult to ensure similarity between model and prototype for dynamic model tests of geotechnical structures. In reality, a great number of such tests were carried out qualitatively, and valuable information was missed. Based on fairly long time practice and experience of performing dynamic model tests, we get some new ideas to establish similarity relationships between model and real earth structures. It is noticed that during strongly inelastic shaking, peak crest acceleration of earth and rock-fill dams decreases with increasing base excitation, finally at near failure stage the dynamic amplification tends to the uniformly distributed along the dam height and approaches 1.0, despite the variation of inhomogeneity of the dam materials. Results of centrifuge modeling and field earthquake measurements also support such findings. Keeping these in mind, a rather simple dynamic similarity rule may be derived.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
4th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2001 University of Missouri--Rolla, 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
Lin, Gao, "Similarity Rule for Dynamic Model Tests of Geotechnical Structures" (2001). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 8.
https://scholarsmine.mst.edu/icrageesd/04icrageesd/session09/8
Included in
Similarity Rule for Dynamic Model Tests of Geotechnical Structures
San Diego, California
Soils and rocks are characterized by their highly nonlinear behaviors. This makes it very difficult to ensure similarity between model and prototype for dynamic model tests of geotechnical structures. In reality, a great number of such tests were carried out qualitatively, and valuable information was missed. Based on fairly long time practice and experience of performing dynamic model tests, we get some new ideas to establish similarity relationships between model and real earth structures. It is noticed that during strongly inelastic shaking, peak crest acceleration of earth and rock-fill dams decreases with increasing base excitation, finally at near failure stage the dynamic amplification tends to the uniformly distributed along the dam height and approaches 1.0, despite the variation of inhomogeneity of the dam materials. Results of centrifuge modeling and field earthquake measurements also support such findings. Keeping these in mind, a rather simple dynamic similarity rule may be derived.
