MOVEMENTS OF ROAD PAVEMENTS DUE TO A RISE IN GROUND WATER TABLE AND WATER INFILTRATION

An elastoplastic constitutive model for unsaturated soils has been implemented in a finite element program to simulate the drained behaviour of unsaturated soil where the suction is either constant or specified externally to suit a particular problem. This model is used to simulate the behaviour of a road pavement due to wetting of the layer of unsaturated soil beneath, either by a rise of the ground water table or by water infiltration. This may result in simultaneous swell and collapse of the soil causing differential settlement and possible cracking of the road pavement. The paper discusses this mechanism of swell and collapse due to a reduction in suction and the implications of this for the road pavement. For the covering abstract see ITRD E108441.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/84878250502
• Corporate Authors:

  Asociacion Tecnica de Carreteras

  Monte Equinza 24
  Madrid,   Spain 
• Authors:
  • NESNAS, K
  • PYRAH, I C
• Conference:
  • INTERNATIONAL SYMPOSIUM ON SUBDRAINAGE IN ROADWAY PAVEMENTS AND SUBGRADES, HELD GRANADA, SPAIN, 11-13 NOVEMBER 1998
• Publication Date: 1998

Language

• English

Media Info

• Features: References;
• Pagination: p. 179-86

Subject/Index Terms

• TRT Terms: Groundwater; Motion; Soil suction; Soils; Swelling soils
• ITRD Terms: 4383: Ground water; 5483: Movement; 4156: Soil; 5771: Suction; 5203: Swelling (soil)
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 00807313
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 84-87825-05-02
• Files: ITRD
• Created Date: Apr 4 2001 12:00AM