This paper summarizes the adaptive management approach for controlling ground movements resulting from geotechnical construction activities, and presents the results of such analyses made throughout construction of the excavation for the SQBRC building in Chicago, IL, wherein attendant ground movement was a key design issue. This paper describes the support system, summarizes the performance data collected in real time, and presents the results of the optimizations made during excavation. Optimization of soil parameters based on plane strain analyses made at well-defined excavation stages resulted in reasonable predictions of computed lateral movements at the end of the excavation. Issues related modeling the support system in three dimensional analyses are discussed, and effects of past construction activities and construction operations other than the cycles of excavation and support installation are illustrated. Current limitations of the approach with respect to supported excavations are discussed.
|Original language||English (US)|
|Number of pages||28|
|Journal||Lecture Notes in Applied and Computational Mechanics|
|State||Published - 2017|
ASJC Scopus subject areas
- Mechanical Engineering
- Computational Theory and Mathematics