Maximum Height of Water Table Calculator

Maximum Height of Water Table Formula:

\[ h_m = \frac{L}{2} \times \sqrt{\frac{R}{K}} \]

Length between Tile Drain (L):

Natural Recharge (R):

m³/s

Coefficient of Permeability (K):

m/s

Maximum Height of Water Table (hₘ):

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1. What is the Maximum Height of Water Table?

The Maximum Height of Water Table refers to the highest level at which the water table can be found in a given area. It is an important parameter in hydrogeology and civil engineering for understanding groundwater behavior and drainage systems.

2. How Does the Calculator Work?

The calculator uses the Maximum Height of Water Table formula:

\[ h_m = \frac{L}{2} \times \sqrt{\frac{R}{K}} \]

Where:

\( h_m \) — Maximum Height of Water Table (m)
\( L \) — Length between Tile Drain (m)
\( R \) — Natural Recharge (m³/s)
\( K \) — Coefficient of Permeability (m/s)

Explanation: The formula calculates the maximum height of the water table between tile drains based on the length between drains, natural recharge rate, and soil permeability coefficient.

3. Importance of Water Table Height Calculation

Details: Calculating the maximum height of the water table is crucial for designing effective drainage systems, preventing waterlogging in agricultural areas, and managing groundwater resources in construction projects.

4. Using the Calculator

Tips: Enter the length between tile drains in meters, natural recharge rate in cubic meters per second, and coefficient of permeability in meters per second. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect the maximum height of the water table?
A: The maximum height is influenced by the spacing between drains, the rate of natural recharge from precipitation, and the permeability of the soil.

Q2: How does tile drain spacing affect water table height?
A: Closer tile drain spacing generally results in a lower maximum water table height, while wider spacing allows the water table to rise higher.

Q3: What is natural recharge in this context?
A: Natural recharge refers to the process where precipitation infiltrates the ground and replenishes groundwater, moving through soil and rock layers until it reaches the water table.

Q4: How does soil permeability affect water table height?
A: Soils with higher permeability (higher K values) allow water to drain more easily, resulting in a lower maximum water table height compared to less permeable soils.

Q5: When is this calculation most useful?
A: This calculation is particularly useful for agricultural drainage design, land reclamation projects, and any situation where controlling groundwater levels is important.