Earth Pressure in a Head Chamber and Grouting Issues for EPB Tunneling in Soft Ground: A Case Study in Tianjin Area

Based on a shield tunneling project using the earth pressure balance (EPB) construction method in Tianjin, China, this paper builds a database of real monitored data which includes ground surface settlement at different phases of tunneling, chamber earth pressure, grouting pressure and volumes as well as excess pitch information. A model to determine the earth pressure in the head chamber to maintain the face stability is proposed and verified with monitored data. Moreover, grouting volumes are analyzed and compared with different considerations.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: pp 117-124
  • Monograph Title: Geo-China 2016: Emerging Technologies in Tunnel Engineering, Modeling, Design, Construction, Repair, and Rehabilitation

Subject/Index Terms

Filing Info

  • Accession Number: 01608916
  • Record Type: Publication
  • ISBN: 9780784480038
  • Files: TRIS, ASCE
  • Created Date: Jul 21 2016 3:04PM