Monitoring Analysis on Internal Action of Pile-Beam-Anchor Support System of T2 Pit of Wangjing SOHO

Based on the stress tests of soldier Piles, ring Beam and Anchor tiebacks (PBA), and the hole displacement observation on Wangjing Soho construction site, the development process of the internal force caused by spatial member interaction has been revealed. It reflects the differences from mechanic principals of the traditional design method, such as elastic foundation beam or equivalence beam of limit equilibrium state. Practical tests showed that soldier piles were under the combination state of compression and bending, and were proved safe because of low stress; while the top ring beam was under the combination state of tension and bending, and the tensile stress might come to the elastic stress limit, which has much relationship to the anchor arrangement. So, the design of the top ring beam should be regarded as one of the key controls of the construction. The actual tested tieback tensile force reached 150~220KN, only half of the design value.


  • English

Media Info

  • Media Type: Web
  • Pagination: pp 993-1004
  • Monograph Title: Tunneling and Underground Construction

Subject/Index Terms

Filing Info

  • Accession Number: 01531570
  • Record Type: Publication
  • ISBN: 9780784413449
  • Files: TRIS, ASCE
  • Created Date: Jul 25 2014 4:16PM