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A centrifuge investigation of the relationship between the vertical response of footings on sand and CPT end resistance
- Source :
- Géotechnique. 71:455-465
- Publication Year :
- 2021
- Publisher :
- Thomas Telford Ltd., 2021.
-
Abstract
- This paper presents results from a systematic investigation of footing response in four different types of sands placed and tested under controlled conditions in a geotechnical centrifuge. A parallel series of cone penetration tests (CPTs) was performed to examine correlations between CPT end resistance (qc) and footing bearing pressure (q). The experimental results show that there is a unique relationship between the normalised bearing stress (q/qc) and the settlement normalised by footing diameter (s/B), irrespective of footing diameter, stress level, sand grading, mineralogy and angularity. These results are shown to compare well with findings from published databases of field-scale footing tests when allowance is made for the significant effects of creep. The study enables simple and robust recommendations to be established for the ultimate capacity (defined at s/B = 0·1) and allowable bearing pressure of a footing on sand.
- Subjects :
- 021110 strategic, defence & security studies
Centrifuge
0211 other engineering and technologies
Earth and Planetary Sciences (miscellaneous)
Geotechnical engineering
02 engineering and technology
Geotechnical Engineering and Engineering Geology
Geology
021101 geological & geomatics engineering
Subjects
Details
- ISSN :
- 17517656 and 00168505
- Volume :
- 71
- Database :
- OpenAIRE
- Journal :
- Géotechnique
- Accession number :
- edsair.doi...........b6ffa80ab72928d6b4517f35cbaa4952