Minimum Safe Length of Travel path under Dams on Soft or Porous Foundations Calculator

Minimum Safe Length of Travel path Formula:

\[ Ln = C2 \times Hf \]

Minimum Safe Length of Travel path (m):

Definition: This calculator determines the minimum safe length of travel path for water under dams built on soft or porous foundations.

Purpose: It helps civil engineers ensure proper seepage control and foundation stability for dam projects.

The calculator uses the formula:

\[ Ln = C2 \times Hf \]

Where:

Explanation: The material coefficient is multiplied by the head under flow to determine the minimum safe path length.

Details: Proper calculation prevents piping failure, ensures structural integrity, and maintains dam safety.

Tips: Enter the New Material Coefficient C2 (%) and Head under Flow (%). All values must be > 0.

Q1: What is the typical range for C2 coefficient?
A: C2 typically ranges from 5% to 15% depending on foundation material properties.

Q2: How is Head under Flow determined?
A: It's calculated as the combination of weir crest and additional head, expressed as a percentage.

Q3: When would I need to adjust these values?
A: Adjust based on soil tests, material properties, and specific project requirements.

Q4: Does this calculation include safety factors?
A: The C2 coefficient typically includes necessary safety considerations.

Q5: How does foundation type affect the calculation?
A: Softer or more porous foundations generally require longer travel paths.