Field testing of stiffened deep cement mixing piles under lateral cyclic loading

Seaside and underground wall bracing often uses stiffened deep cement mixed columns (SDCM). This research investigates methods to improve the level of bearing capacity of these SDCM when subjected to cyclic lateral loading via various types of stiffer cores. Eight piles, two deep cement mixed piles and six stiffened deep cement mixing piles with three different types of cores, H shape cross section prestressed concrete, steel pipe, and H-beam steel, were embedded though soft clay into medium-hard clay on site in Thailand. Cyclic horizontal loading was gradually applied until pile failure and the hysteresis loops of lateral load vs. lateral deformation were recorded. The lateral carrying capacities of the SDCM piles with an H-beam steel core increased by 3–4 times that of the DCM piles. This field research shows that using H-beam steel as a stiffer core for SDCM piles is the best method to improve its lateral carrying capacity, ductility and energy dissipation capacity.

• Record URL:
  https://doi.org/10.1007/s11803-013-0169-x
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/16713664
• Authors:
  • Raongjant, Werasak
  • Jing, Meng
• Publication Date: 2013-6

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 261-265
• Serial:
  • Earthquake Engineering and Engineering Vibration
  • Volume: 12
  • Issue Number: 2
  • Publisher: Springer
  • ISSN: 1671-3664
  • EISSN: 1993-503X
  • Serial URL: http://link.springer.com/journal/11803

Subject/Index Terms

• TRT Terms: Bearing capacity; Bracing; Concrete construction; Field tests; Offshore structures; Pile foundations; Repeated loads; Soil cement
• Uncontrolled Terms: Deep cement mixing
• Geographic Terms: Thailand
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Marine Transportation; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 01495032
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 16 2013 11:33AM