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Author (up) Moffat, R.; Parra, P.; Carrasco, M. pdf  doi
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  Title Monitoring a 28.5 m High Anchored Pile Wall in Gravel Using Various Methods Type Journal Article
  Year 2020 Publication Sensors Abbreviated Journal Sensors  
  Volume 20 Issue 1 Pages 14 pp  
  Keywords deep excavation; anchored wall; monitoring; pile displacement  
  Abstract Horizontal displacements of a multiple-anchor pile wall in a 28.5 m deep excavation using the top-down construction method have been monitored using optical fiber (Brillouin optical time-domain reflectometry (BOTDR)), strain gauges, inclinometers, and a topographic survey. This work presents a comparison between these different techniques to measure horizontal displacements in the pile at several stages of the soil excavation process. It was observed that displacements can be separated into two components: Rigid body motion and pile flexural deformation. Measurements using optical fiber and inclinometers are considered the most adequate and easy to install. A numerical model allows us to evaluate the influence of earth pressure on the estimated horizontal displacements. It is shown that using soil pressure on the wall given by p = 0.65Ka gamma h, on a simplified modeled wall, provides a close deduction of horizontal displacements compared to observed values on the field.  
  Address [Moffat, Ricardo; Parra, Pablo; Carrasco, Miguel] Univ Adolfo Ibanez, Fac Engn & Sci, Av Diagonal Las Torres, Santiago 7941169, Chile, Email: ricardo.moffat@uai.cl;  
  Corporate Author Thesis  
  Publisher Mdpi Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1424-8220 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000510493100080 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 1097  
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