Calculate your first and second stage damage assessment automatically. This tool uses the method put forward in the paper "Prediction of ground movements and assessment of risk of building damage
due to bored tunnelling" by Burland et al (1977).
Soil name
Thickness (m)
K
For deepest strata measure to tunnel axis. List geology shallowest to deepest. K is typically ~0.5 in clay and ~0.25 in granular.
1. Generate a settlement trough
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Geometry
Tunnel axis depthm
Tunnel axis depth > radius and < max soil depth.
Tunnel external diam
Enter number between 1 and 18.
Building heightm
Enter number between 0 & 200.
Building startm
Enter number between -40 and +40.
Building end m
Enter number between -40 and +40.
Volume loss
VL (%)
Enter number between 1 and 13.
A.I. Prediction
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2. Damage assessment results:
Settlement under building: -mm (max)
First stage assessment: -
Second stage assessment: -
Critical strain: -
Warning
The results of these tools must be verified by a qualified Civil Engineer.👷