Collapse settlement of dump soils revealed by studies on soil samples of modelled lithology and lump-size distribution

• Autorzy: Woźniak H.

Identyfikatory

DOI

10.7306/gq.1196

• Języki publikacji: EN

Abstrakty

EN

The paper deals with the collapse settlement of dump soils i.e., made grounds composed of the overburden soils of mineral deposits, which were worked out with the open-pit method, transported and deposited as a dumped fill. The principal aim of the studies was the analysis of factors controlling the collapse settlement process, mostly the structural model of dump soil and external determinants: initial compaction, initial water content and history of its changes in time as well as the history of loading of studied soil before saturation. In order to reflect the natural structure of dump soils, experiments were carried out on samples of specially modelled lithology and structure. Hence, the samples represented three basic structural models of such soils: non-cohesive, cohesive and transitional, partly cohesive/partly non-cohesive. Attention was paid to diversified dynamics of collapse settlement, which results from two clearly different processes: rebuilding of soil structure and additional consolidation settlement. It was found that from the physical point of view the collapse settlement results from the release of elastic energy delivered to the sample by loading before inundation and accumulated at the contact surfaces of soil lumps.

Słowa kluczowe

EN

dump soil; dumped fill; collapse settlement; collapse potential; double porosity

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2015
• Tom: Vol. 59, No. 2
• Strony: 391--399
• Opis fizyczny: Bibliogr. 43 poz., rys., tab., wykr.

Twórcy

autor

Woźniak H.

• AGH University of Science and Technology, Department of Hydrogeology and Engineering Geology, al. A. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

• 1. Alonso, E.E., Oldencop, L.A., 2000. Fundamentals of rockfill collapse. Unsaturated soils for Asia In: Proc. of the Asian Conf. on Unsaturated Soils, Singapore: 3-13. Balkema, Rotterdam.
• 2. Barden, L., McGown, A., Collins, K., 1973. The collapse mechanism in partly saturated soil. Engineering Geology, 7: 49-60.
• 3. Blanchfield, R., Anderson, W.F., 2001. Settlement of opencast coal mine backfill in large scale laboratory tests. GREEN 3. The exploitation of natural resources and the consequences: 447-456. Thomas Telford, London.
• 4. Booth, A.R., 1977. Collapse settlement in compacted soils. CSIR Res. Report 324, Council for Scientific and Industrial Research, Pretoria, South Africa.
• 5. Brandon, T.L., Duncan, J.M., Gardner, W.S., 1990. Hydrocompression settlement of deep fills. Journal of Geotechnical Engineering, 116: 1536-1548.
• 6. Burford, D., Charles, J.A., 1991. Long-term performance of houses built on opencast ironstone mining backfill at Corby, 1975-1990. Round Movements and Structures. Proc. 4th Int. Conf. Held in Cardiff: 54-67. Pentech Press, London.
• 7. Charles, J.A., 1994. Collapse compression of fills on inundation. In: Geotechnical Engineering: Emerging Trends in Design and Practice (ed. K.R. Saxena).: 353-375. Balkema, Rotterdam.
• 8. Charles, J.A., Burford, D., 1987. Settlement and groundwater in opencast mining backfills. Proc. 9th Eur. Conf. Soil Mechanics and Found. Eng., Dublin, vol. 1: 289-292. Balkema, Rotterdam.
• 9. Charles, J.A., Burford, D., Hughes, D.B., 1993. Settlement of opencast coal mining backfill at Horsley 1973-1992. Proc. of the conf. “Engineered fills '93”, Newcastle upon Tyne: 429-439.
• 10. Clayton, C.R.I., 1980. The collapse of compacted chalk fill. Proc. Int. Conf. Compaction, 1: 119-124, Paris.
• 11. Day, R.W., 1999. Geotechnical and Foundation Engineering. Design and Construction. McGrown-Hill, New York.
• 12. Dmitruk, S., 1963. Rozważania nad cechami lessu właściwego (in Polish). Archiwum Hydrotechniki, 10: 79-92.
• 13. Dmitruk, S., 1965. Zadania mechaniki gruntów w wymiarowaniu zwałowisk (in Polish). Zeszyty Naukowe Politechniki Wrocławskiej, 116: 3-117.
• 14. Dudley, J.H., 1970. Review of collapsing soils. Journal Soil Mechanics and Foundations Division, ASCE, 96: 925-947.
• 15. El-Ehwany, M., Houston, L.S., 1990. Settlement and moisture movement in collapsible soils. Journal of Geotechnical Engineering, 116: 1521-1535.
• 16. Feda, J., 1998. Fragmentary clay - a difficult waste material. Engineering Geology, 51: 77-88.
• 17. Feda, J., Boháč, J., 1997. Collapsible behaviour of granulated clay. Proc. 14th Int. Conf. on Soil Mech. and Found. Eng., Hamburg: 287-290. Balkema, Rotterdam.
• 18. Goodwin, A.K., Holden, J.M.W., Kirkpatrick, S.W., 1993. Performance of an engineered fill at Lounge opencast coal site. Proc. of the Conf. “Engineered fill '93”, Newcastle upon Tyne: 413-428.
• 19. Hauss, K.D., Heibaum, M.H., 1990. Settlement due to saturation. 6th Inter. IAEG Congress: 3075-3081. Balkema.
• 20. Hills, C.W.W., Denby, B., 1996. The prediction of opencast backfill settlement. Proc. Inst. Civ. Engrs. Geotech. Eng., 119:167-176.
• 21. Holtz, W.G., Hilf, J.W., 1961. Settlement of soil foundations due to saturation. Proc. 5th Int. Conf. Soil Mech. and Found. Engrg., Paris, 1: 673-679. Dunod , Paris.
• 22. Houston, S.L., Houston, W.N., Spadola, D.J., 1988. Prediction of fill collapse of soils due to wetting. Journal of Geotechnical Engineering, 114: 40-58.
• 23. Houston, W.N., Houston, S.L., Walsh, K.D., 1997. Arid soil problem. Proc. 14th Int. Conf. on Soil Mech . and Found . Engrg., Hamburg: 119-122. Balkema, Rotterdam.
• 24. Jennings, J.E., Knight, K., 1957. The additional settlement of foundations due to a collapse of structure of sandy subsoils on wetting. Proc. 4th Conf. Soil Mech. and Found. Eng., London, 1: 316-319. Butterworths, London.
• 25. Justo, J.L., Saura, J., 1983. Three-dimensional analysis of Infiemillo dam during construction and filling of the reservoir. International Journal for Numerical and Analytical Methods in Geomechanics, 7: 225-243.
• 26. Lawton, E.C., Fragaszy, R.J., Hardcastle, J.H., 1989 . Collapse of compacted clayey sand. Journal of Geotechnical Engineering, ASCE, 115: 1252-1267.
• 27. Lawton, E.C., Fragaszy, R.J., Hardcastle, J.H., 1991. Stress ratio effects on collapse of compacted clayey sand. Journal of Geotechnical Engineering, 117: 714-730.
• 28. Lawton, E.C., Fragaszy, R.J., Hetherington, M.D., 1992. Review of wetting-induced collapse in compacted soil. Journal of Geotechnical Engineering, 118: 1376-1394.
• 29. Leonards, G.A., Davidson, L.W., 1984. Reconsideration of failure initiating mechanisms for Teton Dam. Proc. Int. Conf. Case Histories in Geotechnical Engineering, St. Luis, 3: 1103-1113. University of Missouri-Rolla, Missouri.
• 30. Mašin, D., Herbstová, V., Boháč, J., 2005. Properties of double porosity clayfills and suitable costitutive models. 16 ICSMGE, Osaka: 827-830.
• 31. Mitchell, J.K., 1976. Fabric, structure and property relationships. In: Fundamentals of soil behavior: 222-252. John Wiley & Sons, New York.
• 32. Reznik, Y.M., 2000. Engineering approach to interpretation of oedometer tests performed on collapsible soils. Engineering Geology, 57: 205-213.
• 33. Rozsypal, A., 1990. Determination of mechanical properties of rockfill on model samples with reduced grain size distribution curve. 6th Inter IAEG Congress: 3125-3130. Balkema, Rotterdam.
• 34. Rybicki, S., Woźniak, H., 1994. Shear strength of dump soils with references to water saturation. Proc. 7th Int. Congress IAEG, Lisboa: 2847-2851.
• 35. Rzeszut, P., 1989. Osiadanie gruntów zwałowanych (in Polish). M.Sc. thesis, AGH.
• 36. Tadepalli, R., Fredlund, D.G., 1991. The collapse behaviour of a compacted soil during inundation. Canadian Geotechnical Journal, 28: 477-488.
• 37. Terzaghi, K., 1960. Discussion on Salt Springs and Lower Bear River Dams. Transactions of the American Society of Civil Engineers, 125: 139-159.
• 38. Vilar, O.M., 1994. Collapse of compacted clay undercontrolled suction. 7th Inter. IAEG Congress: 501-506. Balkema, Rotterdam.
• 39. Woźniak, H., 2001. Zastosowanie konsolidometru hydraulicznego Rowe'a do badania odkształceń objętościowych gruntów nasypowych w wyniku zawodnienia (in Polish). Kwartalnik AGH, Geologia, 27: 513-525.
• 40. Woźniak, H.,2009a. Influence of water content on compressibility of cohesive dump soils - results of studies on samples of modeled lump size distribution. Geologija, 51: 53-58.
• 41. Woźniak, H., 2009b. The settlement of dump soils - data from modeling (in Polish with English summary). IGSMiE PAN Kraków.
• 42. Woźniak, H., 2009c. Właściwości deformacyjne i filtracyjne zwałowanych gruntów spoistych z wybranych kopalń odkrywkowych w aspekcie ich budowlanego wykorzystania (in Polish). Wyd. FALL, Kraków.
• 43. Woźniak H., Herzig J., Rzeszut P., 1997. Collapse subsidence in dump soils of unstable structure. 2nd Int. Green Symp. on Geotechnics and the Environment, Theme: Contaminated and Derelict Land., Kraków: 184-191.