Tunnel lateral displacement (breakthrough) error

Version 1.0.0 (1.11 KB) by Matej Varga
The standard displacement error (sigma) of a geodetic station in tunneling in a direction normal to the axis of the tunnel (lateral error).
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Updated 13 Jun 2022
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The standard displacement error (sigma) of a geodetic station in tunneling in a
direction normal to the axis of the tunnel (lateral error). This error describes tunnel
breakthrough error (offset), and can be used in tunnel geodetic network pre-analysis.
Vectorized.
Version: 13 Jun 22
Input: n - the number of the traverse legs
s - the length of the open tunnel traverse [meter]
sigma_angle- the standard deviation (uncertainty) of angle measurements [radians]
Output: sigma - standard error (sigma) of a geodetic station in the tunnel [meter]
Reference: Chrzanowski, A., 1981. Optimization of the breakthrough accuracy in tunnelling surveys. Canadian Surveyor 35 (1), 5 – 16.
Keywords: tunneling, surveying, standard accuracy, breakthrough error

Cite As

Matej Varga (2024). Tunnel lateral displacement (breakthrough) error (https://github.com/mvarga1989/tunnel_breakthrough_error/releases/tag/v1.0.0), GitHub. Retrieved .

MATLAB Release Compatibility
Created with R2022a
Compatible with any release
Platform Compatibility
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Version Published Release Notes
1.0.0

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To view or report issues in this GitHub add-on, visit the GitHub Repository.