Location
Chicago, Illinois
Date
02 May 2013, 4:00 pm - 6:00 pm
Abstract
Middle-shallow layer goaf left after the excavation of small coal mines in expansive soil areas always brings much trouble to expressway construction, the section of K21 +400~K22 +550 of Nanning outer ring expressway under construction faces such a situation. Based on the grasp of geological condition of the goaf, related national technical specifications and existing technical research about treatment, the dynamic compaction with geogird reinforcement method is applied to settle the roadbed with a good result showed in the field testing. This paper introduces the geological condition and stability evaluation of the goaf, and emphatically presents the technical note, construction procedure, quality inspection of the dynamic compaction with geogird reinforcement and the filling method of the upper expansive soil subgrade, which can offer a reference for the similar treatment projects in other expansive soil areas.
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
He-ping, Yang; Bin, Zhang; Jin-tao, Yin; and Jin, Zhang, "Treating the Expansive Soil Subgrade on the Goaf of Middle-Shallow Layer by Dynamic Compaction With Geogrid Reinforcement" (2013). International Conference on Case Histories in Geotechnical Engineering. 40.
https://scholarsmine.mst.edu/icchge/7icchge/session_06/40
Treating the Expansive Soil Subgrade on the Goaf of Middle-Shallow Layer by Dynamic Compaction With Geogrid Reinforcement
Chicago, Illinois
Middle-shallow layer goaf left after the excavation of small coal mines in expansive soil areas always brings much trouble to expressway construction, the section of K21 +400~K22 +550 of Nanning outer ring expressway under construction faces such a situation. Based on the grasp of geological condition of the goaf, related national technical specifications and existing technical research about treatment, the dynamic compaction with geogird reinforcement method is applied to settle the roadbed with a good result showed in the field testing. This paper introduces the geological condition and stability evaluation of the goaf, and emphatically presents the technical note, construction procedure, quality inspection of the dynamic compaction with geogird reinforcement and the filling method of the upper expansive soil subgrade, which can offer a reference for the similar treatment projects in other expansive soil areas.
