Location
Chicago, Illinois
Date
04 May 2013, 10:30 am - 11:30 am
Abstract
The 75 (m) high stacks of the sulfur recovery units of Khangiran Gas Refinery in Iran exhibited significant levels of vibration in winds. Field observations reported that vibration occurred in the stacks 9 times during reel years. The longest vibration duration is 8 hours and maximum tip deflection is 1 (m). In most intensive vibration occurrence much amount of water exits from around of foundation and some crack is created in the structure. Stack diameter is 4.57 (m) at the bottom and 3.43 (m) at the top and its total weight is 182.3 (Ton). The octagonal foundation diameter is 14 (m) at the beneath part and 6 (m) at the upper part. The thickness foundation is 0.9 (m) in beneath part and 2 (m) in upper part. Foundation base soil is layered compacted and due to special geotechnical condition, it is saturated during the years. The paper aim is review of applied geotechnical solutions such as improvement of the soil characteristics by eliminating saturation condition and foundation hardness improvement and changing natural frequency of foundation and stack by changing the mass of them. Also, the other popular solutions are discussed in the paper and finally, effectiveness of applied method is studied.
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
Ghodrat, Hadi; Yazdinejad, Abolfazl; Masum, Javad Hosseini; Khabbaz, Mehdi Barjini; and Ghahramani, Arsalan, "An Investigation on the Stack Vibrations and Geotechnical Rehabilitation Solutions Case-Study: Khangiran Gas Refinery" (2013). International Conference on Case Histories in Geotechnical Engineering. 13.
https://scholarsmine.mst.edu/icchge/7icchge/session04/13
An Investigation on the Stack Vibrations and Geotechnical Rehabilitation Solutions Case-Study: Khangiran Gas Refinery
Chicago, Illinois
The 75 (m) high stacks of the sulfur recovery units of Khangiran Gas Refinery in Iran exhibited significant levels of vibration in winds. Field observations reported that vibration occurred in the stacks 9 times during reel years. The longest vibration duration is 8 hours and maximum tip deflection is 1 (m). In most intensive vibration occurrence much amount of water exits from around of foundation and some crack is created in the structure. Stack diameter is 4.57 (m) at the bottom and 3.43 (m) at the top and its total weight is 182.3 (Ton). The octagonal foundation diameter is 14 (m) at the beneath part and 6 (m) at the upper part. The thickness foundation is 0.9 (m) in beneath part and 2 (m) in upper part. Foundation base soil is layered compacted and due to special geotechnical condition, it is saturated during the years. The paper aim is review of applied geotechnical solutions such as improvement of the soil characteristics by eliminating saturation condition and foundation hardness improvement and changing natural frequency of foundation and stack by changing the mass of them. Also, the other popular solutions are discussed in the paper and finally, effectiveness of applied method is studied.
