A Study on shear strength of aQ13vp sand in the underground railway line Nhon - Hanoi Railway Station

Vol 59 Issue 3 [ Month 06- Year 2018]

The objective studied in this article is sand distributed in depth of ten meters to more than 30 meters from the surface. They were located in the underground railway line Nhon - Hanoi Railway Station. In the present study, a series of consolidated drained triaxial tests have been carried out to clarify the shear strength properties of sand. The test results showed that effective cohesion (C’) change from 1 to 6kPa, effective internal fiction angle (’) change from 30026’ to 38010’. The shear strength of these soils influenced by some parameters such as clay content, the relative density and types of soil. Effective cohesion increases by the increment of clay content and effective friction angle increases with increasing relative density (N value); the high values of ' for SW, SW-SM sands. The shear strengths of these soils provide parameters to calculate the stability of underground construction

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Authors
  • Nu Thi Nguyen,Faculty of Geosciences and Geoengineering, Hanoi University of Mining and Geology, Vietnam
  • Tinh Viet Nguyen,Faculty of Geosciences and Geoengineering, Hanoi University of Mining and Geology, Vietnam
Article information

Title

0

Volumn

Vol 59 Issue 3

Field

Geology

Keyword

Geology

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