Location
Chicago, Illinois
Date
02 May 2013, 7:00 pm - 8:30 pm
Abstract
Jet grout columns are used widely in the last decade in Turkey especially in soil improvement projects. This study is intended to understand the behavior and stress distribution of jet grout columns installed in non-cohesive soils and are under vertical loads. Design capacity of jet grout column is examined by loading tests. Stress distribution was determined by strain gauges installed inside the jet grout columns. 35cm in diameter 8m long jet grout columns were constructed in silty sand. As measured by strain gages, the stress along the column extends deeper while load increases. According to the load test results, at the bottom of the column, 8% of the total test load was measured. Also the 60% of the total stress was observed at a depth of 3.5m to 4.5m below top of the jet grout columns. The loading test was modeled with a finite element program. 15m long jet grout columns was also modeled using a finite element program and it indicated about 60% of the total load occurred at a depth of 8.5m.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
7th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2013 Missouri University of Science and Technology, 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
Teymur, Berrak and Doğanışık, Kaan, "Observation of Stress Distribution on Instrumented Jet Grout Columns" (2013). International Conference on Case Histories in Geotechnical Engineering. 11.
https://scholarsmine.mst.edu/icchge/7icchge/session08/11
Observation of Stress Distribution on Instrumented Jet Grout Columns
Chicago, Illinois
Jet grout columns are used widely in the last decade in Turkey especially in soil improvement projects. This study is intended to understand the behavior and stress distribution of jet grout columns installed in non-cohesive soils and are under vertical loads. Design capacity of jet grout column is examined by loading tests. Stress distribution was determined by strain gauges installed inside the jet grout columns. 35cm in diameter 8m long jet grout columns were constructed in silty sand. As measured by strain gages, the stress along the column extends deeper while load increases. According to the load test results, at the bottom of the column, 8% of the total test load was measured. Also the 60% of the total stress was observed at a depth of 3.5m to 4.5m below top of the jet grout columns. The loading test was modeled with a finite element program. 15m long jet grout columns was also modeled using a finite element program and it indicated about 60% of the total load occurred at a depth of 8.5m.
