Use this engineering calculation for a transparent preliminary estimate or independent arithmetic check when geometry, materials, loads, operating conditions, and units are defined consistently.

Consolidation Coefficient Square Meters Per Second (m²/s)

Required number input.

Time Seconds (s)

Required number input.

Drainage Path Meters (m)

Required number input.

Dimensionless one-dimensional consolidation time factor Tv=cv·t/Hdr² with consistent SI units. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Time Factor

The resulting time factor returned as a number.

• Soil pressure, bearing, permeability, and consolidation results depend on stratigraphy, drainage, stress history, groundwater, sampling, laboratory method, anisotropy, construction sequence, and failure mechanism. Site investigation and code-specific factors are essential.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check assumptions against drawings, measurements, current material data, and the applicable design code. Apply required load combinations and safety factors, then obtain qualified review and testing for consequential designs.

• Consolidation Settlement

  One-dimensional primary consolidation of normally consolidated soil: S=Cc H/(1+e0) log10((σ0+Δσ)/σ0).

• Chezy Coefficient

  Chezy velocity coefficient derived from Manning roughness and hydraulic radius in SI units: C=R^(1/6)/n.

• Concrete Maturity

  Nurse–Saul concrete maturity over one constant-temperature interval: (T−Tdatum)·time; requires a mix-calibrated datum.