Home
Back
Formula Used:
| From: | To: |
Swell is the increase in volume that occurs when certain types of soil, particularly expansive clays, absorb water. It represents the percentage increase in volume compared to the original soil volume.
The calculator uses the formula:
Where:
Explanation: The formula calculates the percentage increase in soil volume after excavation compared to its original volume before excavation.
Details: Calculating swell is crucial in construction and excavation projects to determine the actual volume of soil that needs to be handled, transported, or disposed of. It helps in accurate project planning and cost estimation.
Tips: Enter both loaded volume and original volume of soil in cubic meters. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What causes soil to swell?
A: Soil swelling occurs primarily in expansive clays that absorb water, causing volume increase. The amount of swell depends on clay mineral content and water absorption capacity.
Q2: How is swell different from shrinkage?
A: Swell refers to volume increase when soil absorbs water, while shrinkage refers to volume decrease when soil loses water. Both are important properties of expansive soils.
Q3: What are typical swell values for different soil types?
A: Swell values vary significantly by soil type. Clay soils typically have higher swell values (10-50%) compared to sandy soils (0-10%). The exact value depends on specific soil composition.
Q4: Why is swell multiplied by 10000 in the formula?
A: The multiplication by 10000 converts the decimal result to a percentage value, making it easier to interpret and use in practical applications.
Q5: How does swell affect construction projects?
A: Swell affects material handling, transportation costs, and storage requirements. Underestimating swell can lead to insufficient truck capacity, increased trips, and higher project costs.