Tunnel Survey Computation

This project calculates the coordinates of tunnel points based on deflection angles, open angles, and edge lengths. It is implemented in Python.

Overview

The code performs a simple 2D tunnel alignment calculation:

1. Inputs:
   • Deflection angles (k1, k2, k3) in grads
   • Edge lengths (s1, s2, s3) in meters
2. Calculations:
   • Convert grad angles to radians
   • Compute delta X and delta Y for each tunnel segment
   • Determine cumulative coordinates of each point along the tunnel
   • Compute total delta X and delta Y
   • Calculate tunnel axis direction in radians and degrees
3. Outputs:
   • Coordinates (X, Y) of all tunnel points
   • Total ΔX and ΔY
   • Tunnel axis angle in radians and degrees

How to use

1. Open the Python script tunnel_alignment.py.
2. Adjust the input angles (k1, k2, k3) and segment lengths (s1, s2, s3) if needed.
3. Run the script. It prints:
   • Deflection and open angles
   • ΔX and ΔY for each segment
   • Cumulative coordinates
   • Tunnel axis direction

Notes

• The code uses grad units for angles, which are converted to radians for trigonometric calculations.

• Initial coordinates start at (100, 100) for demonstration purposes.

• The tunnel axis angle is computed using atan(ΔY / ΔX).

• Author

Şevval Köntek