Cohesion of Soil given Mobilized Cohesion Calculator

Cohesion of Soil Formula:

\[ c = C_m \times F_c \]

Cohesion of Soil: %

1. What is Cohesion of Soil given Mobilized Cohesion?

Definition: This calculator determines the actual cohesion of soil based on the mobilized cohesion and factor of safety.

Purpose: It helps geotechnical engineers and construction professionals assess soil stability and design appropriate foundations.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ c = C_m \times F_c \]

Where:

\( c \) — Cohesion of Soil (%)
\( C_m \) — Mobilized Cohesion (%)
\( F_c \) — Factor of Safety with respect to Cohesion (%)

Explanation: The mobilized cohesion is multiplied by the factor of safety to determine the actual cohesion capacity of the soil.

3. Importance of Cohesion Calculation

Details: Proper cohesion estimation ensures stable foundations, prevents slope failures, and helps design appropriate retaining structures.

4. Using the Calculator

Tips: Enter the mobilized cohesion (%) and factor of safety (%). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is mobilized cohesion?
A: Mobilized cohesion is the portion of soil's shear strength that is actually resisting applied stresses.

Q2: Why do we need a factor of safety?
A: The factor of safety accounts for uncertainties in material properties, loading conditions, and analysis methods.

Q3: What's a typical factor of safety for cohesion?
A: Common factors range from 1.5% to 3.0%, depending on project requirements and soil conditions.

Q4: How is mobilized cohesion determined?
A: Through laboratory tests like triaxial shear tests or field vane shear tests.

Q5: Does this include long-term cohesion effects?
A: No, consider separate analysis for drained vs. undrained conditions if needed.