SASK method for testing hydraulic conductivity of soils by flat dilatometer (DMT)

• Autorzy: Garbulewski K. , Żakowicz S. , Rabarijoely S. , Łada A.
• Języki publikacji: EN

Abstrakty

EN

DMT is one of the most popular methods of determining soil parameters needed to design a safe construction. Apart from the basic outcome parameter obtained from DMT measurements hydraulic conductivity (k) can be determined, previously proposed DMTA and DMTC methods were modified. The basic idea of the method is that the return of the deformed membrane is due to soil and water pressure. In the proposed SASK method the hydraulic conductivity of the soil is determined by measuring time-varying pressures A and C. Research has been performed at the experimental site of the Department of Geotechnical Engineering, WULS. In the paper, the assumptions of the new method for determining the hydraulic conductivity k are presented. The proposed method allows us to determine a reliable value for the hydraulic conductivity of clay soils. Using this method, the value of hydraulic conductivity (k = 5,47*10_–11) is similar to the results of BAT, DMTA and laboratory measurements.

Słowa kluczowe

EN

soils research; hydraulic conductivity; soils; dilatometer; determining soil parameters

PL

badania gleby; przewodność hydrauliczna; grunty; dylatometr; oznaczanie parametrów gruntu; badania gruntu

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2012
• Tom: Vol. 34, nr 3
• Strony: 63--72
• Opis fizyczny: Bibliogr. 10 poz., rys., wykr.

Twórcy

autor

Garbulewski K.

• Warsaw University of Life Sciences, Department of Geotechnical Engineering, ul. Nowoursynowska 159, 02-776 Warsaw, Poland

autor

Żakowicz S.

• Warsaw University of Life Sciences, Department of Geotechnical Engineering, ul. Nowoursynowska 159, 02-776 Warsaw, Poland

autor

Rabarijoely S.

• Warsaw University of Life Sciences, Department of Geotechnical Engineering, ul. Nowoursynowska 159, 02-776 Warsaw, Poland

autor

Łada A.

• Warsaw University of Life Sciences, Department of Geotechnical Engineering, ul. Nowoursynowska 159, 02-776 Warsaw, Poland

Bibliografia

• [1] BARAŃSKI M., KACZYŃSKI R., BOROWCZYK M., KRAUŻLIS K., TRZCIŃSKI J., WÓJCIK E., GRANACKI W., SZCZEPAŃSKI T., ZAWRZYKRAJ P., Ocena zachowania się iłów plioceńskich ze Stegien w warunkach naprężeń efektywnych, Sprawozdanie z projektu badawczego KBN Nr 5T12B 041 22. Archiwum Wydziału Geologii, 2004.
• [2] GARBULEWSKI K., RABARIJOELY S., JABŁONOWSKI S., Bayesian approach in interpretation of CPT/DMT tests, Proc. of the 11th Baltic Sea Geotechnical Conference, Geotechnics in Maritime Engineering, Gdańsk, Poland, 2008, 391–398.
• [3] KACZYŃSKI R., GRABOWSKA-OLSZEWSKA B., BOROWCZYK M., RUSZCZYŃSKA-SZENAJCH H., KRAUZLIS K., TRZCIŃSKI J., BARAŃSKI M., GAWRIUCZENKOW I., WÓJCIK E., Litogeneza, mikrostruktury i geologiczno-inżynierskie właściwości iłów plioceńskich rejonu Warszawy, Projekt KBN Nr 9T12B 005 16. Arch. ZPG, 2000.
• [4] LECHOWICZ Z., RABARIJOELY S., Dilatometer C-reading to help determine stratigraphy of organic subsoil, Annals of Warsaw Agricultural Ann. Warsaw Agrcul. Univ. – SGGW, Land Reclam., 2000, 71–78.
• [5] LUTENEGGER A., Current status of the Marchetti dilatometer test, Proc. Int. Symp. on penetration testing ISOPT-1, Orlando, 1988, 1, 137–155.
• [6] MARCHETTI S., In Situ Tests by Flat Dilatometer, J. Geotech. Eng. Div., ASCE, 106, GT3: 299-321, 1980.
• [7] MARCHETTI S., TOTANI G., Ch evaluations from DMTA dissipation curves, Proc. 9th Int. Conf. on Soil Mech. and Foun. Eng., Rio de Janeiro, 1989, Vol. 1, 281–286.
• [8] MŁYNAREK Z., SZYMAŃSKI A., Badania in situ i ich wykorzystanie w projektowaniu, Referat generalny, Mat. X Kraj. Konf. Mech. Grunt. i Fund., Warszawa, 1993.
• [9] RABARIJOELY S., GARBULEWSKI K., RAJTAR J., JABŁONOWSKI S., Geotechnical mapping of the SGGW Campus in Warsaw applying the Bayesian approach, XV European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE 2011), Athens, Greece, Part 1, 2011, 447–452.
• [10] ROBERTSON P.K., CAMPANELLA R.G., GILLESPIE D., Excess Pore Pressures and the Flat Dilatometer Test, Proceedings, International Symposium on Penetration Testing, J.D. Ruiter (ed), A.A. Balkema, Rotterdam, The Netherlands, 1988, Vol. 2, 567–576.