Estimation of spatial variability of lignite mine dumping ground soil properties using CPTu results

• Autorzy: Bagińska I. , Kawa M. , Janecki W.

Identyfikatory

DOI

10.1515/sgem-2016-0001

• Języki publikacji: EN

Abstrakty

EN

The paper deals with application of CPTu test results for the probabilistic modeling of dumping grounds. The statistical measures use results from 42 CPT test points located in the lignite mine dumping ground from the region of Central Europe. Both the tip resistance q_c as well as local friction f_s are tested. Based on the mean values and standard deviations of measured quantities the specific zones in the dumping site profile are distinguished. For three main zones standard deviations of linearly de-trended functions, distributions of normalized de-trended values for q_c and f_s are examined. Also the vertical scales of fluctuation for both measured quantities are estimated. The obtained result shows that lignite mine dumping site can be successfully described with the Random Field Theory. Additional use of fs values introduces supplementary statistical information.

Słowa kluczowe

EN

Random Field Theory; fluctuation scale; CPTu testing; dumping ground soil

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2016
• Tom: Vol. 38, nr 1
• Strony: 3--13
• Opis fizyczny: Bibliogr. 12 poz., tab., rys.

Twórcy

autor

Bagińska I.

• Wrocław University of Science and Technology, Wrocław, Poland

autor

Kawa M.

• Wrocław University of Science and Technology, Wrocław, Poland

autor

Janecki W.

• Geosoft Sp. z o.o.

Bibliografia

• [1] BUCZKO U., GERKE H.H., HÜTTL R.F., Spatial distributions of lignite mine spoil properties for simulating 2-D variably saturated flow and transport, Ecological Engineering, 2001, 17(2), 103–114.
• [2] DMITRUK S., SUCHNICKA H., Geotechniczne zabezpieczenie wydobycia, 1976.
• [3] FENTON G.A., GRIFFITHS D.V., Bearing-capacity prediction of spatially random c φ soils, Canadian Geotechnical Journal, 2003, 40(1) , 54–65.
• [4] FENTON G.A., VANMARCKE E.H., Simulation of random fields via local average subdivision, Journal of Engineering Mechanics, 1990, 116(8) , 1733–1749.
• [5] GRIFFITHS D.V., FENTON G.A., Bearing capacity of spatially random soil: the undrained clay Prandtl problem revisited, Geotechnique, 2001, 351–359
• [6] KAWA M., ŁYDŻBA D., Evaluation of Bearing Capacity of Strip Footing Using Random Layers Concept, Studia Geotechnica et Mechanica, 2015, 37(3), 31–39.
• [7] LLORET-CABOT M., FENTON G.A., HICKS M.A., On the estimation of scale of fluctuation in geostatistics, Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards, 2014, 8(2), 129–140.
• [8] ROBERTSON P.K., Soil behaviour type from the CPT: an update, 2nd International Symposium on Cone Penetration Testing, USA, 9–11 May 2010.
• [9] ROBERTSON P.K., Soil classification using the cone penetration test, Canadian Geotechnical Journal, 1990, 27(1), 151–158.
• [10] UZIELLI M., LACASSE S., NADIM F., PHOON K.K., Soil variability analysis for geotechnical practice, Characterization and Engineering Properties of Natural Soils, 2006, 3, 1653–1752
• [11] VANMARCKE E., Random Fields: Analysis and Synthesis, MIT Press, 1983.
• [12] VESSIA G., CHERUBINI C., PIECZYŃSKA J., PUŁA W., Application of random finite element method to bearing capacity design of strip footing, Journal of GeoEngineering, 2009, 4(3), 103–112.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.