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Sand box (civil engineering)

From Wikipedia, the free encyclopedia

A sandbox or sand jack is a device used for removing the centering of an arch. Each prop is mounted on a sand box. After the plug is removed, the sand pours from the box, causing the centering to move downwards, diminishing the pressure from the arch, and enabling to ultimately remove it.[1]

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Transcription

References

  1. ^ Ashok Kumar Jain, B.C. Punmia, Building Construction, Firewall Media, 2005, p. 435.


This page was last edited on 22 March 2024, at 00:20
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