Study on Effect of Excavation Depth on Internal Force of Retaining Structure of Arc Row Piles with Arc Ring Beam on the Pile Top

Abstract:

In order to control deformation of foundation pit effectively and guarantee safety of building around, utilizing the stress characteristics of arch, use the new spatial retaining structure of arc row piles with arc ring beam on the pile top. The arc ring beam can provide constraint to pile top, so internal force of pile body distribution is uniform, and improve the integrity stability of piles. The ring beam with compression mainly can give use of high compression capability of concrete. According to the high order statically indeterminate characteristics of the retaining structure, calculation model of ring beam and pile respectively is established by the redundant forces between beam and pile top. By using deformation compatibility to set up flexibility equation of the retaining structure, and solve the redundant forces, then calculate the internal force and displacement of ring beam and piles. Through calculating the practical engineering, research the effect of excavation depth on internal force and displacement of piles and the arc ring beam on the pile top.

• Periodical: Advanced Materials Research (Volumes 919-921)
• Pages: 762-768
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.919-921.762
• Online since: April 2014
• Authors: Zhi Wei Zhang, Rong Gui Deng, Ze Shuo Chen
• Keywords: Arc Row Piles, Displacement Constraint, Excavation Depth, Internal Force Distribution, Ring Beam

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