Based on the limit analysis upper bound method, a new mechanism of soil slope failure has been
proposed which was consisted of plastic shear zone and rigid block zone. The different zones interface were
regarded as discontinuity lines. Two sliding blocks of the slope were also incorporated horizontal seismic force
and vertical gravity force. The velocities and forces were analyzed in two blocks, and the expression of velocity
discontinuities was derived according to the principle of incompressibility. The external force done work for the
blocks and the internal energy dissipated of the plastic shear zone and the velocity discontinuous were solved.
The stability ratios were derived for the height of two-level slope with different rates to involve seismic and no
seismic. The present stability ratios were compared to the previous study, which showed the superiority of the
mechanism and the rationality of the analysis. The critical height of the slope can provide a theoretical basis for
slope support and design.
YIN Xiaojun (尹小军), WANG Lanmin (王兰民)
. Block Limit Analysis Method for Stability of Slopes During Earthquakes[J]. Journal of Shanghai Jiaotong University(Science), 2018
, 23(6)
: 764
-769
.
DOI: 10.1007/s12204-018-1997-7
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