Influence of Strain Rate on the Shearing Properties of Compacted Cohesive Soils

• Published in: Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering Vol. 1978; no. 78; pp. 45 - 50,a2
• Main Author: TORIYAMA, Koshi
• Format: Journal Article
• Language: English; Japanese
• Published: The Japanese Society of Irrigation, Drainage and Rural Engineering 1978
• ISSN: 0387-2335; 1884-7234
• DOI: 10.11408/jsidre1965.1978.78_45

In this paper, the results of experiments on the influence of the strain rate e on shearing properties of compacted clay (T-clay) and clayey silt (N-clay) are shown. The compressive strength (σ1-σ3) f and pore pressure at failure Δuf increase with an increment in the consolidation pressure σ3c' but the influence of the strain rate ξ on (σ1-σ3) f and Δuf is hardly detectable. The stress path of compacted soils is similar to that of overconsolidated clay.The strain rate ε has an influence on the stress path of T-clay but none on that of N-clay. The components of cohesion and internal friction on shearing resistance change with strain;namely, the component of cohesion is mainly at small strain and that of internal friction is mainly at large strain but strain rate ε has littl influence on these components. In conclusion, the strain rate e has little influence on the shearing properties of compacted cohesive soils.