Dynamic Behaviors of Overconsolidated Remolded Red Clay Under Cyclic Compressive Stress Paths

This paper presents a series of cyclically loading dynamic triaxial tests for remolded red clay with different overconsolidation ratios, confining pressures and dynamic stress amplitudes having been carried out using the GDS vibratory triaxial apparatus. Main target is the filling of red clay in the high-filling subgrade of CNPC Yunnan Petrochemical Railway special line. Results showed that the critical dynamic stress of overconsolidated remolded red clay increases linearly with the increase in overconsolidation ratio and confining pressure under the cyclic pure pressure dynamics, and an empirical formula for the critical dynamic stress of the region is obtained by regression analysis. Influence of overconsolidation ratio, confining pressure and vibration times on the development of cumulative dynamic strain was analyzed. Moreover, the dynamic strength of overconsolidated remolded red clay is proportional to the overconsolidation ratio and confining pressure. Number of cyclical vibrations has little effect on the dynamic internal friction angle of overconsolidated red clay but has a greater impact on the dynamic cohesion. These test results can provide certain practical value for the overconsolidation of red clay as a subgrade filling project in the area.

• Record URL:
  • https://doi.org/10.1007/978-981-15-2349-6
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9789811523489
• Supplemental Notes:
  • © Springer Nature Singapore Pte Ltd. 2020.
• Corporate Authors:

  Springer Singapore

  152 Beach Road
  Singapore,     189721
• Authors:
  • Yang, Guoyue
  • Li, Keyu
  • Xu, Yunlong
  • Li, Liangji
• Conference:
  • 8th International Symposium on Environmental Vibration and Transportation Geodynamics (ISEV2018)
  • Location: Changsha , China
  • Date: 2018-10-26 to 2018-10-28
• Publication Date: 2020-4

Language

• English

Media Info

• Media Type: Web
• Edition: 1
• Features: References;
• Pagination: pp 297-309
• Monograph Title: Advances in Environmental Vibration and Transportation Geodynamics: Proceedings of ISEV 2018
• Serial:
  • Lecture Notes in Civil Engineering
  • Volume: 66
  • Publisher: Springer Singapore
  • ISSN: 2366-2557
  • EISSN: 2366-2565
  • Serial URL: https://www.springer.com/series/15087

Subject/Index Terms

• TRT Terms: Clay; Dynamic loads; Geotechnical engineering; Load tests; Overconsolidation; Regression analysis; Vibration
• Subject Areas: Geotechnology; Railroads;

Filing Info

• Accession Number: 01900963
• Record Type: Publication
• ISBN: 9789811523489
• Files: TRIS
• Created Date: Nov 28 2023 4:10PM