TITLE:
Evaluation of Unsaturated Layer Effect on Seismic Analysis of Unbraced Sheet Pile Wall
AUTHORS:
Mohammad Hossein Jahangir, Hadis Soleymani, Saeideh Sadeghi
KEYWORDS:
Unbraced Sheet Pile, Suction Stress, Effective Stress Parameter, Lateral Earth Pressure, Embedded Depth
JOURNAL NAME:
Open Journal of Marine Science,
Vol.7 No.2,
April
30,
2017
ABSTRACT: This paper is built upon the previous developments on lateral earth pressure by providing a series of analytical expressions that may be used to evaluate vertical profiles of the effective stress and the corresponding suction stress under steady-state flow conditions. Suction stress profile is modeled for one layer sand near the ground above the water level under hydrostatic conditions. By definition, the absolute magnitude of suction stress depends on both the magnitude of the effective stress parameter and matric suction itself. Thus, by developing the Rankine’s relations in seismic state, the composing method of active and passive surfaces in sides of unbraced sheet pile is examinated and the effects of soil parameter on those surfaces are evaluated by a similar process. The relations described the quantitative evaluation of lateral earth pressure on sheet pile and the effects of unsaturated layer on bending moment and embedded depth of sheet pile in soil.