A silenced piling rig capable of driving H-piles up to 80-ft long began work on British Railways' Southern Region last month. The rig has been developed by Sheet Piling Contractors Limited from the 'Hush' rig, which is widely used in Britain. Known as the H-rig, the new equipment was designed to meet BR's requirements for driving piles that were too long for the original 'Hush' system. Though intended mainly for H-piles, the rig will also accommodate concrete and tube piles. To help reduce noise, the rig is encased in a sound-proofing box. During a demonstration in which a 60-ft pile was driven by a 3-ton drop hammer in 15 minutes, noise measurements were taken with the sound-proofing case both open and closed. Recordings made at a distance of 50-ft showed a reduction of 18 to 20 dBA with the casing sealed compared with 88 dBA when the case was open. The rig is at present in use at a site in south London; H-piles are being driven in restricted conditions to support an embankment where an underbridge is under construction.

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  • Supplemental Notes:
    • The entire article appears here. Further information may be obtained from Sheet Piling Contractors Limited, Ferry Lane, Rainham, Essex, Great Britain. Reader Equirey form No. 102.
  • Corporate Authors:

    IPC Transport Press, Limited

    Dorset House, Stamford Street
    London SE1 9LU,   England 
  • Publication Date: 1973-3

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Filing Info

  • Accession Number: 00046357
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 4 1974 12:00AM