Development of a Design Technology for Ground Support for Tunnels in Soil: Vol. I. Time Dependent Response Due to Consolidation in Clays

Details

• Alternative Title:
  Development of a Design Technology for Ground Support for Tunnels in Soil: Vol. I. Time-Dependent Response Due to Consolidation in Clays
• Creators:
  Johnston, Paul R. ; Clough, Wayne
• Corporate Creators:
  Stanford University
• Corporate Contributors:
  John A. Volpe National Transportation Systems Center (U.S.) ; United States. Urban Mass Transportation Administration
• Subject/TRT Terms:
  • Tunnels
  • Tunneling
  • Soil stabilization
  • Soil mechanics
  • Silts
  • Soils
  • Tunnel lining
  • Finite element method
  • Mathematical analysis
  • Field studies
  More +
• Publication/ Report Number:
  UMTA-MA-06-0100-82-1 ; DOT-TSC-UMTA-82-54,1
• DOI:
  https://doi.org/10.21949/1526715
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Technical report; Aug 1979-Jan 1982
• Corporate Publisher:
  United States. Urban Mass Transportation Administration
• Description:
  The report presents an investigation of the phenomenon of tunnel related movements, due to consolidation in clayey or silty soils, as a result of dissipation of excess pore pressures induced during construction. A review of field data showing time dependent movements and liner load changes is provided and a finite element procedure is described to simulate this behaviour and parametric study results are discussed. It is shown that consolidation related effects lead to long term ground and liner movements and changes in liner loading patterns. Consolidation influences are greatest in cases where flexible liners or shields with large tail voids have been used in construction as this leads to greater shearing of the soil and hence excess pore pressure. Advanced pressurised face shields are shown to be capable of reducing long term consolidation movements.
• Format:
  PDF
• Funding:
  DOT-TSC-1726 ; UM248/R2650
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/10368/dot_10368_DS1.pdf
• File Type:
  [PDF - 9.38 MB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha256:95e74f214882543e9ac3c0ec0b780643d3eeeefbfd63999aaa7b8883608b23b3