Gravitational acceleration

Crest

Quantum mechanics

Amplification factor

Engineering

Gravitation

Geotechnical engineering

Materials science

Amplifier

Classical mechanics

Geology

Lateral earth pressure

Degree Rankine

Physics

Geosynthetics

Mathematics

Optics

Geometry

Earthquake shaking table

Structural engineering

CMOS

Retaining wall

Wedge (geometry)

Optoelectronics

Geosynthetics International

A series of shaking table tests on geosynthetic-reinforced walls with a height of H = 0.6 m is performed to investigate the seismic performance of prototype walls with H = 6 m. Ground-wall resonance occurs at small values of horizontal peak ground acceleration (HPGA), namely 0.1–0.5g, with an amplification factor of A m = 1.2–2.2 at the crest of the wall. This factor decreases with increasing HPGA. For walls that attain states of maximum horizontal displacement (D max )/H &gt; 5%, the failure mechanism consists of a vertical failure surface at a distance from the facing of 0.3H for the upper half of the wall and a Rankine triangular wedge over the lower half of the wall. Mononobe-Okabe theory gives dynamic earth pressure coefficients that agree well with experimental results based on k h = η·HPGA/g, where k h and η are the horizontal seismic coefficient and an empirical constant, respectively, with values of η ranging from 1/4 to 1/3. Furthermore, the maximum tensile forces induced by shaking increase as the depth of reinforcement increases, generating a trapezoidal shape rather than the inverted trapezoidal shape proposed in the literature.

Seismic responses of vertical-faced wrap-around reinforced soil walls