SLOW PILER EASES NEW HAW OUT OF A TIGHT SPOT

Stringent British rail restrictions concerning the use of tall construction equipment near the London-Southampton railway line has resulted in the use of a bored piling system for the M25 new haw viaduct. The viaduct will carry dual three-lane carriageways of the London orbital motorway on reinforced concrete piers. A shell auger bored pile casing system has been used to complete construction of piles close to the track. Conventional pile driving techniques could not be used as vibration could have caused track subsidence. In the twist-and-push piling system used, piles are augered 26 M into the gravel and clay subsoil, and temporarily cased with coupled 4 M long double skinned lengths of shell. Although the system has been used successfully it has the disadvantage that only one pile per day can be placed. (TRRL)

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 14
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00319636
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jan 19 1981 12:00AM