Effects of Vibration Frequency on Dynamic Properties of Undisturbed Structural Marine Soil

Abstract:

Due to influence by many factors like soil classification, viscosity property and vibration frequency, there is no common view yet about the effect of frequency on dynamic pore pressure and characteristics. In order to study the development of pore pressure, strain and dynamic strength of Hangzhou Bay undisturbed structural silty clay under different vibration frequencies, cyclic triaxial tests were performed. The test results indicate that the frequency has little influence on pore pressure and strain when they didn’t reach the threshold values, but once they exceeded the threshold values the frequency will has strong influence. There is critical cyclic stress ratio when the cyclic stress ratio has not reached that value, the frequency has no influence on dynamic strength. For the given cycles, the higher the frequency is, the bigger the dynamic strength is. And with the increment of frequency, the influence on dynamic is decreased eventually.

• Periodical: Applied Mechanics and Materials (Volumes 193-194)
• Pages: 925-930
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.193-194.925
• Online since: August 2012
• Authors: Xiao Ling Chen, Dong Li, Rui Min Liu
• Keywords: Dynamic Pore Pressure, Dynamic Strain, Dynamic Strength, Hangzhou Bay, Vibration Frequency

References

[1] Hyodo M, Yamamoto Y, Sugiyama M. Undrained cyclic shear behaviour of normally consolidated clay subjected to initial static shear stress. Soil and Foundations. Vol.4(1994),P.1-11.

DOI: 10.3208/sandf1972.34.4_1

[2] Hyde, A. F. L., Yasuhara K., and Hirao, K. Stability Criteria for Marine Clay under One-way Cyclic Loading. Journal of Geotechnical Engineering, ASCE, Vol.11(1993), P.1771-1889.

DOI: 10.1061/(asce)0733-9410(1993)119:11(1771)

[3] Zhou Jian and Gong Xiaonan. Strain Degradation of Saturated Clay under Cyclic Loading. Gan. Geotech. J.,Vol.2( 2001), P.208-212.

DOI: 10.1139/t00-062

[4] Zhang Ru, Tu Yang-ju, Fei Wen-pin, el. Effect of vibration frequency on dynamic properties of saturated cohesive soil [J]. Rock and soil mechanics. Vol.5(2006),P.699-704.

[5] Bai Bing, Zhou Jian. Some problems on behavior of saturated clay under cyclic loading [J]. Rock and soil mechanics,Vol.3(1999),P.84-90.

[6] Meng Fanli, Lu Chengyuan, Wang sansan. Experimental study on dynamic strain and strength of silt under wave load [J]. Journal of Zhejiang university of technology.Vol.6(2007),P.671-674.

[7] Ye Yincan, Lai Xianghua. Dynamic strength characteristics of silt in the Hangzhou bay[J]. Marine sciences, Vol.2(2003),P.56-59.

[8] Ansal A M, Erken A. Undrained behavior of clay under cyclic shear stresses. Journal of Geotechnical Engineering, ASCE, Vol.7(1989),P.968-983.

DOI: 10.1061/(asce)0733-9410(1989)115:7(968)

[9] Matsui T., Ohara H., and Ito T. Cyclic Stress-Strain History and Shear Characteristic of Clays. Journal of Geotechnical Engineering, ASCE, Vol.10(1980),P.1101-1120.

DOI: 10.1061/ajgeb6.0001043

[10] Qian Jiahuan, Yin Zongze. The principle and calculation of soil [M]. Beijing: China water power press. (1996), P.523-536.

[11] Yasuhra K., Yamanouchi T., and Hirao K. Cyclic Strength and Deformation of normally Consolidated Clay. Soils and Foundations, Vol.3(1982),P.77-91.

DOI: 10.3208/sandf1972.22.3_77