The successful adaptation of a dewatering technique known as Electro-osmosis in underwater pile driving at a Texas City marine terminal is described. The driven pile is made of one of the electrodes, the other is inserted into the ground a short distance away. Water is drawn to the pile wall lubricating the pile/soil interface. Skin friction is restored by reversing the current. Tightening of the soil grains also occurs at the anode. Methods of adapting the technique to operate through surface water, and removing the need for a second pile are discussed. Two methods have now been evolved, one for tubular and the other for piles of any shape. It is claimed that the method, which can also be used for concrete piles, reduces blow counts by 30 to 80 per cent. The effect makes the use of vibrating piledrivers possible in clay-type soils and it could be applied to pipe jacking. (TRRL)

Media Info

  • Features: Figures;
  • Pagination: p. 22-23
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00309316
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jun 9 1980 12:00AM