Integration of construction as-built data via laser scanning with geotechnical monitoring of urban excavation

Y. Y. Su, Y. M.A. Hashash, L. Y. Liu

Research output: Contribution to journalArticlepeer-review


The demand for urban underground space has been increasing in the past decades to create living space and to avoid traffic congestion. A critical concern during the design and development of the underground space is the influence of construction-related ground movements on neighboring facilities and utilities. Currently, engineers can estimate ground movements using a combination of semiempirical methods and numerical model simulation. However, these advanced analyses require accurate as-built construction staging data, which most projects lack. The traditional approach of collecting construction-staging data is both labor intensive and time consuming. This paper explores the use of three-dimensional laser scanning technology to accurately capture construction activities during development of an urban excavation. The paper describes the planning, execution, and data processing phases of collecting accurate construction as-built staging information over a period of 4 months at an urban excavation site in Evanston, Ill. The resulting data provide an unprecedented level of detail on the as-built site conditions and provide much needed information to civil engineering disciplines involved in an urban excavation including construction management and structural and geotechnical engineering.

Original languageEnglish (US)
Article number002612QCO
Pages (from-to)1234-1241
Number of pages8
JournalJournal of Construction Engineering and Management
Issue number12
StatePublished - 2006


  • Construction management
  • Data analysis
  • Data collection
  • Excavation
  • Tracking
  • Underground construction

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Industrial relations
  • Strategy and Management


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