Ratio of Embedded Depth of Multi-Pivots Retaining Walls to Excavation Depth in Suzhou Subway Stations in China

The embedded depth ratio of multi-pivot retaining walls is a very important parameter in the design of deep excavations. Taking an excavation in the Suzhou subway as an example, the relationship between the deformation and internal forces and the embedded depth of the retaining wall was analyzed for the purpose of determining the rational embedded depth. The maximum lateral displacement of retaining walls and the maximum surface settlement does not reduce endlessly with deepening the embedded depth. It is little affected by the increase of embedded depth when the embedment reaches a certain depth. The internal forces of the retaining structure increase or decrease first and then stabilize when the embedded depth ratio reaches a certain value. Based on these analyses, the ratio of wall embedded depth to excavation depth in Suzhou City was proposed in the range of 0.7 to 0.8. This reference range not only can guarantee the stability of deep excavation, but also can reduce the construction cost.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 246-255
  • Monograph Title: Tunneling and Underground Construction

Subject/Index Terms

Filing Info

  • Accession Number: 01529176
  • Record Type: Publication
  • ISBN: 9780784413449
  • Files: TRIS, ASCE
  • Created Date: May 22 2014 3:04PM