A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A binary packing material-based method for estimating small-strain shear modulus of sandy soils
A set of creative formulation is introduced to estimating the small-strain shear modulus (Gmax) of various sandy soils through the measurement of well-controlled laboratory tests combined with the analysis of experimental data published in the literature. The influences of normalized effective confining pressure (σc0′/Pa), void ratio (e), and fines contents (FC) on the values of Gmax are revealed through a series of bender element measurements. Through introducing the equivalent skeleton void ratio (esk∗) to describe the intergranular contact state of sandy soils with FC less than a threshold value (FCth), a remarkable finding is that the stress exponent n, characterizing the increase rate of Gmax with increasing σc0′, is a soil-specific constant and a linear function of the synthesizing material parameter (CusCuf) in log-scale. Another remarkable finding is that a virtually unique form of the correlation between Gmax/(σc0′/Pa)n and esk∗ exists. An unified form of the binary packing material-based Gmax prediction formulation for different types of sandy soils is established. The three coefficients of the proposed Gmax expression in form of explicit equations can be simply determined using some basic index properties of clean sand and pure fines. In this regard, the proposed Gmax prediction formulation provides a significant advantage in the determination of Gmax and associated shear wave velocity Vs of sandy soils in practice.
A binary packing material-based method for estimating small-strain shear modulus of sandy soils
A set of creative formulation is introduced to estimating the small-strain shear modulus (Gmax) of various sandy soils through the measurement of well-controlled laboratory tests combined with the analysis of experimental data published in the literature. The influences of normalized effective confining pressure (σc0′/Pa), void ratio (e), and fines contents (FC) on the values of Gmax are revealed through a series of bender element measurements. Through introducing the equivalent skeleton void ratio (esk∗) to describe the intergranular contact state of sandy soils with FC less than a threshold value (FCth), a remarkable finding is that the stress exponent n, characterizing the increase rate of Gmax with increasing σc0′, is a soil-specific constant and a linear function of the synthesizing material parameter (CusCuf) in log-scale. Another remarkable finding is that a virtually unique form of the correlation between Gmax/(σc0′/Pa)n and esk∗ exists. An unified form of the binary packing material-based Gmax prediction formulation for different types of sandy soils is established. The three coefficients of the proposed Gmax expression in form of explicit equations can be simply determined using some basic index properties of clean sand and pure fines. In this regard, the proposed Gmax prediction formulation provides a significant advantage in the determination of Gmax and associated shear wave velocity Vs of sandy soils in practice.
A binary packing material-based method for estimating small-strain shear modulus of sandy soils
Acta Geotech.
Wu, Qi (author) / Hang, Tianzhu (author) / Jiang, Jiawei (author) / Xu, Chengshun (author) / Chen, Guoxing (author)
Acta Geotechnica ; 19 ; 6357-6373
2024-09-01
17 pages
Article (Journal)
Electronic Resource
English
Bender element measurement , Binary packing material , Sandy soil , Small-strain shear modulus Engineering , Geoengineering, Foundations, Hydraulics , Solid Mechanics , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics
A binary packing material-based method for estimating small-strain shear modulus of sandy soils
| Springer Verlag | 2024
| British Library Online Contents | 2014