Submerged Unit Weight With Respect To Saturated Unit Weight Calculator

Formula Used:

\[ \text{Submerged Unit Weight in KN per Cubic Meter} = \text{Saturated Unit Weight of Soil} - \text{Unit Weight of Water} \] \[ y_S = \gamma_{\text{saturated}} - \gamma_{\text{water}} \]

Submerged Unit Weight in KN per Cubic Meter:

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1. What is Submerged Unit Weight?

Submerged Unit Weight in KN per Cubic Meter is the unit weight of a weight of soil as observed under water in a saturated condition of course. It represents the effective weight of soil particles when submerged in water.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ y_S = \gamma_{\text{saturated}} - \gamma_{\text{water}} \]

Where:

\( y_S \) — Submerged Unit Weight in KN per Cubic Meter (N/m³)
\( \gamma_{\text{saturated}} \) — Saturated Unit Weight of Soil (N/m³)
\( \gamma_{\text{water}} \) — Unit Weight of Water (N/m³)

Explanation: The formula calculates the effective unit weight of soil when it is submerged in water by subtracting the unit weight of water from the saturated unit weight of the soil.

3. Importance of Submerged Unit Weight Calculation

Details: Accurate calculation of submerged unit weight is crucial for geotechnical engineering applications, including slope stability analysis, foundation design, and earth pressure calculations for structures below water table.

4. Using the Calculator

Tips: Enter saturated unit weight of soil and unit weight of water in N/m³. Both values must be positive numbers. The calculator will compute the submerged unit weight.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical value for unit weight of water?
A: The unit weight of water is typically 9810 N/m³ or 9.81 kN/m³ at standard conditions.

Q2: How does submerged unit weight differ from saturated unit weight?
A: Submerged unit weight accounts for buoyancy effects when soil is underwater, while saturated unit weight is the total weight including water content without buoyancy consideration.

Q3: When is submerged unit weight used in engineering calculations?
A: It is used for calculating effective stresses in soil mechanics, particularly for structures below groundwater level such as basements, retaining walls, and underwater foundations.

Q4: What factors affect the saturated unit weight of soil?
A: Soil type, density, water content, and degree of saturation all affect the saturated unit weight of soil.

Q5: Can this formula be used for all soil types?
A: Yes, the formula applies to all soil types when they are fully saturated and submerged in water.