LAND DRAINS ACCELERATE SOFT SOIL CONSOLIDATION

A series of land drains, 6 M deep and approximately 3 M apart, has been laid to accelerate settlements and relieve pore water pressures across a 400 M section of Tadcaster by-pass. The drains were installed in an embankment by A b-600 track-mounted horizontal dewatering machine, designed to dig a 230 mm wide trench up to 6 M deep and insert granular porous media as back-fill in one operation. The drains were laid transversely to the line of the embankment, each 50 M long run taking about one hour to complete. The technique, adopted as an alternative to sand drains, is claimed to compare well on a cost basis and, in appropriate soil conditions, to be technically more efficient. /TRRL/

• Corporate Authors:

  IPC Building and Contract Journals Limited

  Surrey House, 1 Throwley Way
  Sutton, Surrey SM1 4QQ,   England 
• Publication Date: 1975

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 18
• Serial:
  • Highways and Road Construction
  • Volume: 44
  • Issue Number: 1792

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Alternatives analysis; Consolidation; Costs; Dewatering; Drainage; Drains; Embankments; Ground settlement; Pipe; Pore water pressures; Road construction; Soft soils; Soils
• Uncontrolled Terms: Soil consolidation
• Geographic Terms: United Kingdom
• ITRD Terms: 2937: Drainage; 2801: Embankment; 3361: Pipe; 5762: Pore water pressure; 3665: Road construction; 5792: Settlement; 8119: United Kingdom
• Subject Areas: Finance; Geotechnology; Highways; Hydraulics and Hydrology; I51: Earthworks and Soil Drainage;

Filing Info

• Accession Number: 00134248
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 4 1976 12:00AM