Central artery/tunnel project excavation induced ground deformations

Youssef M.A. Hashash, Abdolreza Osouli, Camilo Marulanda

Research output: Contribution to journalArticlepeer-review

Abstract

Estimate of deformations around urban excavations is a primary concern for designers, contractors, owners, and potentially affected third parties. Significant efforts have gone into the development of empirically based methods to estimate deformations relying on a large number of case histories. The construction of the deep excavations for the central artery/tunnel project provides valuable information on observed deformations due to the construction of these excavations. Lateral deformations and surface settlements for three construction contracts are collected and summarized in a form similar to published empirical charts. The stiff support system used in these braced excavation and the embedment of the wall into stiff strata control deformations to minimal levels. The data show that surface settlements, although small, extend farther away from the excavation than previously reported.

Original languageEnglish (US)
Pages (from-to)1399-1406
Number of pages8
JournalJournal of Geotechnical and Geoenvironmental Engineering
Volume134
Issue number9
DOIs
StatePublished - Sep 1 2008

Keywords

  • Excavation
  • Soil deformation
  • Tunnels
  • Urban areas

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Environmental Science(all)

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