Geologija / Geology
 ISSN 1392-110X ISSN 2029-056X (online) |
2008 m. Nr. Priedas Consolidation parameters of Neogene green clays from Bełchatów – a study on CL test interpretation
The article presents the results of consolidation tests of Neogene green clays from the geological profile of the Bełchatów lignite mine (Central Poland). Reliable characteristics of the consolidation parameters are essential for forecasting settlements and for assessment of their insulation features. The reliability criteria of the test results for consolidation at a constant rate of loading are analysed. Quasistabilization of the cv value in the stress function σv may be used as a simple and effective criterion. Criteria based on comparisons with the theoretical course of the process indicate the key role of the steady phase of the test. In the analysed clays, a high consistence of the course of their consolidation with a theoretical solution in the steady phase was obtained. Corrections based on Wissa and Janbu suggestions or the reinterpretation of cv using theoretical rules introduced to CL tests are necessary, especially for the non-steady phase.
Keywords: consolidation CL tests, coefficient of consolidation cv, pore water pressure parameter CCL, Neogene green clays, Bełchatów lignite mine, Central Poland |
Issues:
2011 - Vol.53 No. 1, No. 2, No. 3 2010 - Vol.52 No. 1-4 2009 - Vol.51 No. 1-2, No. 3-4 2008 - Vol.50 No. 1, No. 2, No. 3, No. 4, No. Priedas 2007 No. 1, No. 2, No. 3, No. 4 2006 No. 1, No. 2, No. 3, No. 4 2005 No. 1, No. 2, No. 3, No. 4 2004 No. 1, No. 2, No. 3, No. 4 2003 No. 1, No. 2, No. 3, No. 4 2002 No. 1, No. 2, No. 3, No. 4 2001 No. 1, No. 2, No. 3, No. 4 |