Characterizing the Effect of Water Content on Small-Strain Shear Modulus of Qiantang Silt

Journal of Marine Science and Engineering

Lisha Zhang¹  Shimin Zhang¹  Xin Liu²  Yinsuo Sun³ 

[1] Department of Civil Engineering, Zhejiang University City College, Hangzhou 310015, China;Key Laboratory of Western China’s Mineral Resource and Geological Engineering, Ministry of Education, Chang’an University, Xi’an 710061, China;School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China;

关键词: shear modulus;    resonant column test;    Qiantang silt;    water content;    Hardin’s equation;   

DOI  :  10.3390/jmse9121363

来源: DOAJ

【 摘 要 】

Due to the impact of natural and artificial influence, such as waves, tides, and artificial dewatering, the small-strain shear modulus of soils may vary with the water content of soil, causing deformation of excavations and other earth structures. The present study used a resonant column device to investigate the effects of water content, void ratio, and confining pressure on the small-strain shear modulus of a silt extracted from an excavation site near Qiantang River in Hangzhou, China. The test results revealed that the effects of the three factors are not coupled and can be characterized by three individual equations. In particular, the small-strain shear modulus decreases with increasing water content under otherwise similar conditions, which can be characterized by a power function. The classical Hardin’s equation is modified to consider the effect of water content by introducing an additional function of water content.

【 授权许可】

Unknown