Location
New York, New York
Date
16 Apr 2004, 8:00am - 9:30am
Abstract
Jet grouting in Shanghai can date back to late 1970s but was seldom applied in constructive projects. It was not until the construction of Metro in Shanghai in 1980s that jet grouting became widely accepted. Now it has been successfully applied in the constructions of two subway lines and basic constructions of some buildings nearby. A lot of experience has been accumulated through practice in terms of suitable conditions and situations. First, it can reduce deformation caused by excavation. When the system of braced framing in a certain geological condition cannot meet the demand of deforming control and bracing path cannot be increased, the method of enhancing resistance of passive zone of enclosing structure should be taken into consideration. Soil body strengthening of passive zone is usually a reasonable method. When problems of piping or artesian water occur, jet grouting of stabilizing foundation pit bottom can be used if method of groundwater lowering is not suitable due to environmental circumstances. Jet grouting is also employed in cut-off wall of foundation pit and entrance in shield working well.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 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
Wang, Jia-Lin and Wang, Ji-Wang, "The Application of Jet Grouting in Shanghai Foundation Pit Projects" (2004). International Conference on Case Histories in Geotechnical Engineering. 20.
https://scholarsmine.mst.edu/icchge/5icchge/session05/20
The Application of Jet Grouting in Shanghai Foundation Pit Projects
New York, New York
Jet grouting in Shanghai can date back to late 1970s but was seldom applied in constructive projects. It was not until the construction of Metro in Shanghai in 1980s that jet grouting became widely accepted. Now it has been successfully applied in the constructions of two subway lines and basic constructions of some buildings nearby. A lot of experience has been accumulated through practice in terms of suitable conditions and situations. First, it can reduce deformation caused by excavation. When the system of braced framing in a certain geological condition cannot meet the demand of deforming control and bracing path cannot be increased, the method of enhancing resistance of passive zone of enclosing structure should be taken into consideration. Soil body strengthening of passive zone is usually a reasonable method. When problems of piping or artesian water occur, jet grouting of stabilizing foundation pit bottom can be used if method of groundwater lowering is not suitable due to environmental circumstances. Jet grouting is also employed in cut-off wall of foundation pit and entrance in shield working well.
