Peck Tunnel Settlement Trough Calculator
Urban Tunnel Geotechnics: Predict surface settlement profile, trough width ($i$), ground slopes, and building damage strain risk using Peck’s Gaussian model.
Tunnel Geometry & Ground
Typical $K$ values: 0.4–0.5 for stiff clays, 0.25–0.35 for sands/gravels. Typical $V_L$: 0.5–1.5% for modern EPB/Slurry TBMs.
Settlement Profile & Distortion Results
Max Settlement ($S_{max}$)
-- mm
Trough Width ($i$)
-- m
Settlement at $x$
-- mm
Max Ground Slope
--
Subsidence Bowl Geometry
• Tunnel Excavation Volume ($V_{exc}$): -- $m^3/m$
• Settlement Volume Loss ($V_s$): -- $m^3/m$
• Inflection Point Distance ($x = i$): -- m
• Horizontal Ground Displacement at $x$: -- mm
• Lateral Tensile Strain at $x$: -- %
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