3D Finite Element Analysis of Geosynthetic-Reinforced and Pile-Supported Widening of Embankment over Soft Soil

To minimize the differential deformation between the widening subgrade and the existing one, geosynthetic-reinforced and pile-supported (GRPS) embankment was chosen as a typical geotechnical composite system in Shanghai A11 expressway-widening engineering. Due to the complexity of this problem, 3D finite element analysis was conducted to investigate the mechanical behavior and effect of GRPS embankment in subgrade-widening engineering over soft soil. Analysis results indicate that, GRPS embankment can reduce differential settlement and enhance the stability significantly, spacing of outer piles can be larger than that of the inner piles, and the installation of piles under the existing embankment slope combined with excavation of old filling is very necessary when the height of embankment is not less than 3 meters.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784410431
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Qian, Jinsong
  • Ling, Jianming
• Conference:
  • GeoHunan International Conference: Challenges and Recent Advances in Pavement Technologies and Transportation Geotechnics
  • Location: Changsha Hunan, China
  • Date: 2009-8-3 to 2009-8-6
• Publication Date: 2009

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 124-132
• Monograph Title: Road Pavement Material Characterization and Rehabilitation: Selected Papers From the 2009 GeoHunan International Conference

Subject/Index Terms

• TRT Terms: Embankments; Finite element method; Geosynthetics; Pavement widening; Reinforcing materials; Soft soils; Support piles
• Uncontrolled Terms: Three dimensional analysis
• Geographic Terms: China
• Subject Areas: Construction; Highways; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 01139941
• Record Type: Publication
• ISBN: 9780784410431
• Files: TRIS
• Created Date: Sep 18 2009 7:08AM