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Schmertmann Sand Settlement (CPT Strain Influence) Calculator

Easily calculate and compute schmertmann sand settlement (cpt strain influence) calculator with accurate equations, live formulas, and expert guidance.

Calculated Result
17.7 mm

Immediate Elastic Settlement (S_e)

Immediate Elastic Settlement (S_e)

17.7 mm

Immediate Elastic Settlement Mm

17.7

Settlement Inches

0.7

Embedment Correction C1

0.917

Creep Time Correction C2

1.34

17.7 — mm

Calculation Breakdown

  1. Applied FormulaCalculates immediate elastic settlement of shallow footings on granular sands using the Schmertmann strain influence factor Iz and cone penetration resistance qc (Es = 2.5 * qc).S_e = C_1 C_2 \Delta q \sum \frac{I_z \Delta z}{E_s}, \quad C_1 = 1 - 0.5\left(\frac{\sigma^{\prime}_{v0}}{\Delta q}\right)

Schmertmann Sand Settlement Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.04.48.81318Immediate Elastic Settlement (S_e)

What Is the Schmertmann Sand Settlement (CPT Strain Influence) Calculator?

This tool computes schmertmann sand settlement (cpt strain influence) calculator with high precision arithmetic.

How Does the Schmertmann Sand Settlement (CPT Strain Influence) Calculator Work?

Calculates immediate elastic settlement of shallow footings on granular sands using the Schmertmann strain influence factor Iz and cone penetration resistance qc (Es = 2.5 * qc).

Schmertmann Sand Settlement (CPT Strain Influence) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

Se=C1C2Δq∑IzΔzEs,C1=1−0.5(σv0′Δq)S_e = C_1 C_2 \Delta q \sum \frac{I_z \Delta z}{E_s}, \quad C_1 = 1 - 0.5\left(\frac{\sigma^{\prime}_{v0}}{\Delta q}\right)

Calculates immediate elastic settlement of shallow footings on granular sands using the Schmertmann strain influence factor Iz and cone penetration resistance qc (Es = 2.5 * qc).

How to Use the Schmertmann Sand Settlement (CPT Strain Influence) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Schmertmann Sand Settlement (CPT Strain Influence) Calculator Example

Input Values:

netFoundationPressureDeltaQKPa:180
footingWidthBMeters:2.5
averageConeResistanceQcMPa:7.5
timeAfterConstructionYears:5
overburdenStressAtBaseKPa:30
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required mm.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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