Shear-Displacement-Amplitude Dependent Pore-Pressure Generation in Undrained Cyclic Loading Ring Shear Tests: An Energy Approach
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 131, Issue 6
Abstract
By conducting a series of shear-torque-controlled (STC) and shear-displacement-controlled (SDC) ring shear tests under undrained conditions, the effects of cyclic loading frequency, shear displacement rate, and overconsolidation ratio (OCR) on the pore-pressure generation were examined and analyzed by means of an energy approach. Cyclic STC tests demonstrated that as the frequency of loading increased, the shear energy as well as the total shear displacement until liquefaction substantially decreased, while the number of cycles to liquefaction increased with frequency. Nevertheless, SDC tests showed that , , did not vary with frequency. This dependency of on the loading frequency in STC tests was inferred to be due to the different resultant shear displacement amplitude after shear failure but before liquefaction during cyclic shearing. The results of STC tests on samples with different OCRs showed that all these three parameters of , , increased with OCR. The SDC tests at different shear-displacement amplitude showed that there existed an optimal at which was minimum. smaller than this optimal value was probably not as effective at enforcing the grains to adjust their position, and then it was difficult for the volume shrinkage to occur and pore-water pressure to generate; while an increase in from this optimal value led to extra energy consumption probably due to grain crushing and heat transferring from grains friction, and then elevate the value of for liquefaction. These results proved that pore-pressure generation in undrained cyclic loading was strongly dependent on the shear-displacement amplitude during the shearing.
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Acknowledgments
This study is supported by the Special Coordinating Fund for Promoting Science and Technology of the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT), and also is a part of the M101 Project, “Areal Prediction of Earthquake and Rain Induced Rapid and Long-traveling Flow Phenomena” (APERITIF), of the International Programme on Landslides (IPL) supported by the International Consortium on Landslides (ICL).
References
Alarcon-Guzman, A., Leonards, G. A., and Chameau, J. L. (1988). “Undrained monotonic and cyclic strength of sands.” J. Geotech. Eng., 114(10), 1089–1109.
Annaki, M., and Lee, K. L. (1977). “Equivalent uniform cycle concept for soil dynamics.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng., 103(6), 549–564.
Berrill, J. B., and Davis, R. O. (1985). “Energy dissipation and seismic liquefaction of sands: revised model.” Soils Found., 25(2), 106–118.
Davis, R. O., and Berrill, J. B. (1982). “Energy dissipation and seismic liquefaction in sands.” Earthquake Eng. Struct. Dyn., 10, 59–68.
Dief, H. M., and Figueroa, J. L. (2000). “Evaluation of soil liquefaction by energy principles through centrifuge tests.” Proc., GeoEng2000, Melbourne, Australia.
Dobry, R., Ladd, R. S., Yokel, F. Y., Chung, R. M., and Powell, D. (1982). “Prediction of pore water pressure buildup and liquefaction of sands during earthquakes by the cyclic strain method.” Building Science Series 138, National Bureau of Standards, U.S. Department of Commerce, U.S. Governmental Printing Office, Washington, D.C.
Drnevich, V. P. (1972). “Undrained cyclic shear of saturated sand.” Soil Mech. Found. Eng. (Engl. Transl.), 98(18), 807–825.
Figueroa, J. L. (1990). “A method for evaluating soil liquefaction by energy principles.” Proc., 4th U.S. National Conf. on Earthquake Engineering, Earthquake Engineering Research Institute, Palm Springs, Calif.
Figueroa, J. L. (1993). “Unit energy level associated with pore pressure development during liquefaction.” Soil dynamics and earthquake engineering, A. S. Cakmak and C. A. Brebbia, eds., Computational Mechanics Publications, Southampton, Boston, 413–427.
Figueroa, J. L., and Dahisaria, M. N. (1991). “An energy approach in defining soil liquefaction.” Proc., 2nd International Conf. on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, Univ. of Missouri-Rolla, Rolla, Mo.
Figueroa, J. L., Saada, A. S., Liang, L., and Dahisaria, N. M. (1994). “Evaluation of soil liquefaction by energy principles.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng., 120(9), 1554–1569.
Finn, W. D. L. (1981). “Liquefaction potential: developments since 1976.” Proc., 1st International Conf. on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, St. Louis, Vol. 2, 655–681.
Ishihara, K. (1993). “Liquefaction and flow failure during earthquakes.” Geotechnique, 43(3), 349–451.
Ishihara, K., and Yasuda, S. (1972). “Sand liquefaction due to irregular excitation.” Soils Found., 12(4), 65–77.
Ishihara, K., and Yasuda, S. (1975). “Sand liquefaction in hollow cylinder torsion under irregular excitation.” Soils Found., 15(1), 45–59.
Law, K. T., Cao, Y. L., and He, G. N. (1990). “An energy approach for assessing seismic liquefaction potential.” Can. Geotech. J., 27, 320–329.
Lee, K. L., and Focht, J. A., Jr. (1975). “Liquefaction potential at Ekotisk tank in North Sea.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng., 101(1), 1–18.
Liang, L., Figueroa, L. J., and Saada, A. S. (1995). “Liquefaction under random loading: unit energy approach.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng., 121(11), 776–781.
Nemat-Nasser, S., and Shakooh, A. (1979). “A unified approach to densification and liquefaction of cohesionless sand in cyclic shearing.” Can. Geotech. J., 16(4), 659–678.
Peacock, W. H., and Seed, B. H. (1968): “Sand liquefaction under cyclic loading simple shear condition.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng., 94(3) 689–708.
Sassa, K. (1985). “The mechanism of debris flows.” Proc., 11th International Conf. on Soil Mechanics and Foundation Engineering, San Francisco, Vol. 3, 1173–1176.
Sassa, K. (1996). “Prediction of earthquake induced landslides. Landslides,” Proc., 7th International Symp. on Landslides. A. A. Balkema, Rotterdam, The Netherlands, Vol. 1, 115–132.
Sassa, K. (2000). “Mechanism of flows in granular soils.” Proc., GeoEng2000, Melbourne, Australia Vol. 1, 1671–1702.
Sassa, K, Fukuoka, H., Scarascia-Mugnozza, G., and Evans, S. (1996). “Earthquake-induced landslides: distribution, motion and mechanisms.” Soils Found., Special Issue, 53–64.
Sassa, K., Fukuoka, H., Wang, G., and Ishikawa, N. (2004). “Undrained dynamic-loading ring-shear apparatus and its application to landslide dynamics.” Landslides, 1(1), 7–19.
Sassa, K., Wang, G., and Fukuoka, H. (2003). “Performing undrained shear tests on saturated sands in a new intelligent type of ring shear apparatus.” Geotech. Test. J., 26(3), 257–265.
Seed, H. B. (1979). “Soil liquefaction and cyclic mobility evaluation for level ground during earthquakes.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng., 105(2), 201–255.
Seed, H. B., and Idriss, I. M. (1971). “Simplified procedure for evaluating soil liquefaction potential.” J. Soil Mech. Found. Div., 97(9), 1249–1273.
Seed, H. B., Idriss, I. M., Makdisi, F., and Banerjee, N. (1975). “Representation of irregular stress time histories by equivalent uniform stress series in liquefaction analysis.” Rep. No. EERC 75-29, Univ. of California, Berkeley, Calif.
Simcock, J., Davis, R. O., Berrill, J. B., and Mallenger, G. (1983). “Cyclic triaxial tests with continuous measurement of dissipated energy.” Geotech. Test. J., 6(1), 35–39.
Towhata, I., and Ishihara, K. (1985a). “Shear work and pore water pressure in undrained shear.” Soils Found., 25(3), 73–84.
Towhata, I., and Ishihara, K. (1985b). “Undrained strength of sand undergoing cyclic rotation of principal stress axes.” Soils Found., 25(2), 135–147.
Trifunac, M. D. (1995). “Empirical criteria for liquefaction in sands via standard penetration test and seismic wave energy.” Soil Dyn. Earthquake Eng., 14, 419–426.
Vankov., D. A. (1999). “Influence of loading rate and shear-displacement magnitude on the pore pressure generation at sliding surface.” PhD thesis, Kyoto Univ., Kyoto, Japan.
Voznesensky, E. A., and Nordal, S. (1999). “Dynamic instability of clays: An energy approach.” Soil Dyn. Earthquake Eng., 18, 125–133.
Wang, G., and Sassa, K. (2002). “Post-failure mobility of saturated sands in undrained load- controlled ring shear tests.” Cognition, 39(4), 821–837.
Wong, R. T., Seed, H. B., and Chan, C. K. (1975). “Cyclic loading liquefaction of gravelly soils.” Soil Mech. Found. Eng. (Engl. Transl.), 101(6), 571–583.
Yoshimi, Y., Richart, F. E., Prakash, S., Balkan, D. D., and Ilyichev, V. A. (1977). “Soil dynamics and its application to foundation engineering.” Proc., 9th International Conf. on Soil Mechanics, Vol. 2, 605–650.
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© 2005 ASCE.
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Received: Jan 29, 2004
Accepted: Oct 2, 2004
Published online: Jun 1, 2005
Published in print: Jun 2005
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