Seismic stability of gentle infinite slopes

Journal Article · Sat Jun 01 04:00:00 EDT 1985 · J. Geotech. Eng. Div., Am. Soc. Civ. Eng.; (United States)

DOI:https://doi.org/10.1061/(ASCE)0733-9410(1985)111:6(681)· OSTI ID:5010333

Hadj-Hamou, T; Kavazanjian, E

Deterministic and probabilistic analyses of the stability of gentle infinite slopes subject to seismically induced excess pore pressures and inertia forces are developed. In the deterministic analysis, classical equations for infinite slope stability are rewritten to explicitly include excess pore pressure and seismic acceleration. Equations for the factor of safety are developed that include these factors. In the probabilistic analysis, the seismic acceleration, excess pore pressure, and effective friction angle are considered random variables. Acceleration peaks are considered Rayleigh distributed. Excess pore pressure is predicted using a model that considers Rayleigh distributed shear stress peaks. The friction angle is modeled with a Beta distribution. Acceleration and pore pressure development within the gentle infinite slope are assumed the same as those in a horizontal deposit of the same average thicknesss. Finite element analyses are performed to investigate the limits of this assumption. Results from both analyses are compared to documented case histories of lateral spreading.

• Research Organization: Tulane Univ., New Orleans, LA
• OSTI ID: 5010333
• Journal Information: J. Geotech. Eng. Div., Am. Soc. Civ. Eng.; (United States), Journal Name: J. Geotech. Eng. Div., Am. Soc. Civ. Eng.; (United States) Vol. 111:6; ISSN AJGEB
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580201* -- Geophysics-- Seismology & Tectonics-- (1980-1989)
CRYSTAL STRUCTURE
FINITE ELEMENT METHOD
FRICTION
GEOLOGIC STRATA
GEOLOGIC STRUCTURES
GEOPHYSICS
INCLINED STRATA
MICROSTRUCTURE
NUMERICAL SOLUTION
POROSITY
SEISMIC EFFECTS
SEISMIC SURFACE WAVES
SEISMIC WAVES
SHEAR
SLOPE STABILITY
STABILITY