Liquid consistency of organic soils under the bridge construction

Scientific paper - Original scientific paper

• Author: Gregor Kacprzak https://orcid.org/0000-0003-0731-5761
• Author: Pavel Pietrzykowski https://orcid.org/0000-0002-9104-9541
• Author: Želimir Veinović https://orcid.org/0000-0002-1572-2191
• Author's institution: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Mining and Geotechnical Engineering)
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering

Abstract (english)

The paper presents the case study of geotechnical investigations reporting connected with expert’s opinion on undrained shear strength of organic sediments in the river valley at the north of Poland according to reinforcement methodology of c.a. 0, 7 km highway embankment. Diversification of primary results caused additional research which revealed and confirmed liquid consistency of organic soils – several meters of organic and calcareous sediments – gyttja under the thin cover of peat. The main goal of the paper is a discussion on standardization of consistency of organic soils itself and additionally to point out very rare possibility of liquid consistency, finally not pointed in International Standards ISO 14688. The application of Atterberg limits in organic sediments is moot but even organic soil with water content higher than liquid limit can’t be classified and interpreted as very soft with description as soil which exudes between the fingers when squeezed in the hand. Such identification is practically impossible when it’s hard to squeeze because of gravitationally leaking through the fingers.

• Keywords (english): gyttja; consistency; organic sediments; geotechnics; standards
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Archives of Civil Engineering
• Numbering: vol. 67, no. 2, pp. 181-194
• p-ISSN: 1230-2945
• DOI: https://doi.org/10.24425/ace.2021.137162
• URN:NBN: urn:nbn:hr:169:252567
• Publication: 2021
• Document URL: https://ace.il.pw.edu.pl/wp-content/uploads/2021/06/11.ACE-00167_B5.pdf
• Document URL: https://journals.pan.pl/dlibra/publication/137162/edition/119978/content
• Type of resource: Text
• Access conditions: Open access
• Created on: 2021-09-13 09:49:37