Newmark Sliding Block Slope Displacement Calculator
Seismic slope stability & dam engineering: Calculate the critical yield acceleration ($k_y$), critical acceleration ratio ($k_y / a_{max}$), and permanent earthquake sliding displacement ($D_N$) using the Newmark rigid block method.
Slope Stability & Seismic Hazard
Empirical Correlation Model
Slope Deformation & Performance
Yield Acceleration k_y:
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g (slip initiation threshold)
Permanent Slip D_N:
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centimeters (downslope)
Ratio k_y / a_max:
--
critical ratio
Arias Intensity I_a:
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m / s
Slope State:
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serviceability limit
USACE / FERC Dam Safety Standard
USACE Embankment Criterion ($D_N < 10\text{ cm}$):
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Slip Exceedance Probability:
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