1. What is Constant Depending Upon Soil at Base of Well?

The constant depending upon soil at base of well (K) represents the permeability and flow characteristics of the soil at the bottom of a well. It is calculated as the product of cross-sectional area and specific capacity of the open well.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( K \) — Constant depending upon soil at base of well (m³/s)
• \( A_{cs} \) — Cross-sectional area of the well (m²)
• \( K_A \) — Specific capacity of the open well (m/s)

Explanation: This formula calculates the constant that characterizes the soil properties at the well base by multiplying the cross-sectional area with the specific capacity.

3. Importance of Constant Calculation

Details: Calculating this constant is essential for determining the flow characteristics and permeability of soil at the well base, which is crucial for well design, groundwater extraction efficiency, and hydrogeological studies.

4. Using the Calculator

Tips: Enter cross-sectional area in square meters (m²) and specific capacity in meters per second (m/s). Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What does the constant K represent?
A: The constant K represents the combined effect of cross-sectional area and specific capacity, characterizing the soil permeability and flow properties at the base of the well.

Q2: How is cross-sectional area measured?
A: Cross-sectional area is typically calculated based on the well's diameter or shape. For circular wells, it's πr² where r is the radius.

Q3: What is specific capacity?
A: Specific capacity is a measure of well productivity, defined as the discharge rate per unit drawdown (usually in m³/s per meter of drawdown).

Q4: What are typical values for this constant?
A: Values vary widely depending on soil type, well design, and hydrogeological conditions, ranging from very small values for clay soils to larger values for sandy or gravelly soils.

Q5: Can this constant be used for well design?
A: Yes, this constant is important for well design as it helps determine the optimal well dimensions and predict well performance under different extraction scenarios.