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Issue 1 (1) 2002 pp. 35–48

Jędrzej Wierzbicki

THE USE OF THE CONE PENETRATION TEST TO EVALUATE THE OVERCONSOLIDATION RATIO OF SOME PLEISTOCENE DEPOSITS

Keywords: soil investigations, overconsolidation ratio (OCR), cone penetration test (CPT)
Abstract: This paper presents a new procedure to obtain a continuous profile of overconsolidation ratio (OCR) by use of the cone penetration test (CPT). In the case of a cohesive soil the existing formulas described by other authors were presented and discussed. Some of them were then used to compute the OCR of a silty clay subsoil. The results were compared with the data of CRS oedometer tests carried out on undisturbed samples. In the case of non-cohesive soils a new device for CPT, a dilatocone, was used (DCPT). On the basis of the DCPT results new solutions were obtained enabling evaluation of the OCR of sand. They are based on the old formulas described by Kulhawy and Mayne and a completely new one, which gives the opportunity to evaluate the coefficient of earth pressure at rest (K0). This new approach allows one to compute the OCR of a subsoil consisting of cohesive and non-cohesive strata and to observe changes in OCR along a continuous profile.
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For citation:

MLA Wierzbicki, Jędrzej. "THE USE OF THE CONE PENETRATION TEST TO EVALUATE THE OVERCONSOLIDATION RATIO OF SOME PLEISTOCENE DEPOSITS." Acta Sci.Pol. Form. Cir. 1.1 (2002): 35–48.
APA (2002). . Acta Sci.Pol. Form. Cir. 1 (1), 35–48
ISO 690 WIERZBICKI, Jędrzej. THE USE OF THE CONE PENETRATION TEST TO EVALUATE THE OVERCONSOLIDATION RATIO OF SOME PLEISTOCENE DEPOSITS. Acta Sci.Pol. Form. Cir., 2002, 1.1: 35–48.
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