Browse > Article
http://dx.doi.org/10.12814/jkgss.2016.15.4.089

Behavior of Variable Cross-Section Soft Ground Reinforced Foundation in Soft Grounds  

Kim, Khi-Woong (Dept of Urban Construction Engineering, Incheon National University)
Kim, Dong-Wook (Department of Civil and Environmental Engineering Incheon National University)
Jo, Myoung-Su (EXT Co. Ltd.)
Publication Information
Journal of the Korean Geosynthetics Society / v.15, no.4, 2016 , pp. 89-96 More about this Journal
Abstract
Compressive axial behavior of the variable cross-section soft ground reinforced foundation is investigated from the field load test results at ${\bigcirc}{\bigcirc}$ construction site in Incheon city. Variable cross-section soft ground reinforced foundation is a type of partial-displacement pile formed by mixing bidding material with in situ soils to obtain a rigid and strong variable cross-section column in a relatively soft ground. The foundations are usually constructed as a group; however in this study, only single foundation was installed and tested under compressive axial load on foundation head. For the comparison of the variable cross-section soft ground reinforced foundation axial behavior, behavior of typical Pretensioned spun high strength concrete (PHC) pile constructed on a relatively soft ground near the surface was analyzed. It was concluded that variable cross-section soft ground reinforced foundation efficiently resists against axial load with sufficient stiffness and strength within a considerable range of axial load magnitude.
Keywords
Ground improvement; Partial-displacement pile; Soft ground; Load transfer analysis; Axial behavior;
Citations & Related Records
연도 인용수 순위
  • Reference
1 ASTM D 1194-94. (2014), "Standard Test Method for Bearing Capacity of Soil for Static Load and Spread Footings," American Society for Testing and Materials, West Conshohocken, PA.
2 BKGNC. (2011), Static and dynamic load test of pile at ${\bigcirc}{\bigcirc}$ construction site, Internal Report, Back Young Green, New, Change & Challenge Company.
3 KS F 2444. (2015), "Testing method for bearing capacity of soil for static load on spread footings," Korean Standards & Certifications.
4 KS F 2445. (2016), "Standard test method for piles under static axial compressive load," Korean Standards & Certifications.
5 KS F 2314. (2013), "Standard test method for unconfined compression test of soils," Korean Standards & Certifications.
6 Meyerhof, G. G. (1976), "Bearing Capacity and Settlement of Pile Foundations," Journal of the Geotechnical Engineering Division, American Society of Civil Engineers, Vol.102, No.GT3, pp.197-228.
7 Phung DL (2010) Piled raft a cost-effective foundation method for high-rises. Geotech Eng J SEAGS and AGSSEA, Vol. 41, No. 3, 1-12.
8 Randolph, M. F. and B. S. Murphy (1985), "Shaft Capacity of Driven Piles in Clay." OTC 4883, pp.[371-378.
9 Salgado, R. (2008), Engineering of Foundations, McGraw Hill, New York, 896p.
10 Patil, J. D., Vasanvala, S. A. and Solanki, C. H. (2016), "An Experimental Study on Behaviour of Piled Raft Foundation," Indian Geotechnial Journal, Vol.46, No.1, pp.16-24.   DOI