Location
St. Louis, Missouri
Date
02 Jun 1993, 9:00 am - 12:00 pm
Abstract
This paper presents the results of settlement and load distribution monitoring carried out during the construction of a 49 storey condominium supported on long end-bearing caissons socketed into shale bedrock. Four caissons were instrumented to determine load distribution within the rock socket. One of these caissons also was instrumented to measure actual load reaching the top and bedrock level of the shaft. As of early March 1992, with the building already topped-off for over 6 months and about 100% of anticipated dead load applied, the settlement appears to consist entirely of elastic compression of the caisson shafts. Although the estimated load to the top of the caissons appears to exceed design load by approximately 29 percent, the stress in the rock socket is computed to be well within design assumptions. About 20 percent of the computed load appears to be absorbed in the 29 m of overburden.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
3rd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1993 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Trow, W. A.; Orpwood, T. G.; and Carrington, R. L., "Monitoring of Load and Distribution in Long Caissons under 49 Story Structure" (1993). International Conference on Case Histories in Geotechnical Engineering. 44.
https://scholarsmine.mst.edu/icchge/3icchge/3icchge-session01/44
Monitoring of Load and Distribution in Long Caissons under 49 Story Structure
St. Louis, Missouri
This paper presents the results of settlement and load distribution monitoring carried out during the construction of a 49 storey condominium supported on long end-bearing caissons socketed into shale bedrock. Four caissons were instrumented to determine load distribution within the rock socket. One of these caissons also was instrumented to measure actual load reaching the top and bedrock level of the shaft. As of early March 1992, with the building already topped-off for over 6 months and about 100% of anticipated dead load applied, the settlement appears to consist entirely of elastic compression of the caisson shafts. Although the estimated load to the top of the caissons appears to exceed design load by approximately 29 percent, the stress in the rock socket is computed to be well within design assumptions. About 20 percent of the computed load appears to be absorbed in the 29 m of overburden.
