Identyfikatory
Warianty tytułu
The influence of soil structure on clay soil shrinkage
Języki publikacji
Abstrakty
This paper deals with the structural factors affecting shrinkage phenomena. Seventy eight soil samples were tested, including: Neogene (Mio-Pliocene) clays, glacial tills, clayey alluvial soils, bentonite, illitic clay and kaolinite. Destructed soils (remoulded samples) were compared with undisturbed soils (NNS). Analysis of shrinkage curves showed that the most hydrophilic clays and well-graded soils have the lowest void ratio and shrinkage limit. Shrinkage curves ofsilty and sandy soils are relatively plane with poorly differentiated shrinkage stages. For Neogene clays, shrinkage curves of remoulded samples are similar to the undisturbed ones. Both series of samples yielded similar final void ratio and shrinkage limit values. For alluvial soils and glacial tills, remoulded samples yielded a lower void ratio and higher shrinkage limit values than NNS samples. The results obtained showed that the soil fabric (natural preserved versus disturbed) does not influence shrinkage of Neogene clays while affects significantly shrinkage of alluvial soils and glacial tills. The statistical analysis revealed that there was no correlation between shrinkage limit and clay content or plastic index. A linear rela¬tionship was found between shrinkage limit and void ratio for clays as well as remoulded samples.
Czasopismo
Rocznik
Tom
Strony
195--202
Opis fizyczny
Bibliogr. 13 poz., tab., wykr
Twórcy
autor
- Instytut Hydrogeologii i Geologii Inżynierskiej, Wydział Geologii, Uniwersytet Warszawski, ul. Żwirki i Wigury 93, 02-089 Warszawa
autor
- Instytut Hydrogeologii i Geologii Inżynierskiej, Wydział Geologii, Uniwersytet Warszawski, ul. Żwirki i Wigury 93, 02-089 Warszawa
Bibliografia
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- 2. British Standard 1377:1990 - Part 2. Methods of testing soils for civil engineering purposes. British Standards Institution, London.
- 3. GRABOWSKA-OLSZEWSKA B. (red.) 1998 - Geologia stosowana. Właściwości gruntów nienasyconych. PWN, Warszawa.
- 4. GROENEVELT P.H. & GRANT C.D. 2004 - Analysis of soil shrinkage data. Soil Till. Res., 79: 71-77.
- 5. HEAD K.H. 1992 - Manual of soil laboratory testing. T. 1. Soil classification and compaction tests. Pentech Press, London, s. 388.
- 6. IZDEBSKA-MUCHA D. 2003 - Polska a brytyjska metodyka badań skurczalności gruntów spoistych. [W:] Materiały konferencyjne. 45 lat geotechniki w Łodzi. Geotechnika w polskim budownictwie. Łódź- Arturówek, 24-25 kwietnia 2003 r. Kat. Geotech. Budow. Inż. Politech. Łódzkiej, Łódź: 63-78.
- 7. IZDEBSKA-MUCHA D. & WÓJCIK E. 2011 - Analiza parametrów skurczalności gruntów spoistych według różnych norm. Biul. Państw. Inst. Geol., 446: 321-328.
- 8. KUMOR M.K. 2006 - Badanie fazy skurcz-pęcznienie iłu jako możliwość przewidywania przemieszczeń podłoża ekspansywnego. Zesz. Nauk. Politech. Białostoc., Budownictwo, 28: 179-189.
- 9. MILLER D.J., DURKEE D.B., CHAO K.C. & NELSON J.D. 1995 - Simplified heave prediction for expansive soils. [W:] Alonso E.E. & Delage P. (red.) Proceedings of the First International Conference on Unsaturated Soils. Paris, France, September 1995. Balkema, Rotterdam: 891-898.
- 10. MITCHELL J.K. 1993 - Fundamentals of soil behavior. Wiley, New York, s. 436.
- 11. SRIDHARAN A. & PRAKASH K. 1998 - Mechanism controlling the shrinkage limit of soils. Geotech. Test. J., 21: 240-250.
- 12. SRIDHARAN A. & VENKATAPPA RAO G. 1971 - Effective stress theory of shrinkage phenomena. Can. Geotech. J., 8: 503-513.
- 13. ZAHN L., CHEN P. & NG C.W.W. 2007 - Effect of suction change on water content and total volume of an expansive clay. J. Zhejiang Univ., Sci. A, 8: 699-706.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-87777931-58ae-4939-b3e0-c132bf7b47ee