New Railway at Santarém – Foundation treatment of the new railway embankment on the alluvial deposits of the River Tagus
DOI:
https://doi.org/10.14195/2184-8394_121_3Keywords:
Geological characteristics, Geotechnical characteristics, Alluvial deposits, Foundation improvement an reinforcement, Railway embankmentAbstract
This paper presents the geotechnical characterization of the alluvial deposits of the River Tagus that take place in the foundation of the new railway embankment at Santarém and the definition of a solution for the improvement and reinforcement of that foundation.The solution defined, based on the results of the geotechnical characterization, consisted on the acceleration of the consolidation process of the alluvial deposits in the foundation, by means of a network of prefabricated vertical drains, associated with preloading, and the reinforcement of the base of the railway embankment with high resistance geotextiles.
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References
Bjerrum, L. (1973). Problems of soil mechanics and construction on soft clays and structurally instable soils (colapsible, expansive and others). General Report of the VIII ICSMFE, Moscovo.
Kulhawy, F.H.; Mayne, P.W. (1990). Manual on estimating soil properties for foundation design. Report EL – 6800, Electric Power Research Institute, Palo Alto.
Jaky, J. (1948). Pressure in soils. 2nd ICSMFE, London, Vol. 1, pp. 103-107. Japanese Road Association (1980). Specifications for highway bridges.
Parkin, A. (1978). Coefficient of consolidation by the velocity method. Géotechnique, Vol. 28, No.4, pp. 472-474.
PLAXIS (2008). PLAXIS 2D Manual, version 9.
Robertson, P.K.; Campanella, R.G. (1983). Interpretation of cone penetration tests: Parts 1 and 2. Canadian Geotechnical Journal, 20, pp.718-745.
Schnaid, F. (2000). Ensaios de campo e suas aplicações à Engenharia de Fundações. Oficina de Textos. Brasil.
Stroud, M.A. Butler, F.G. (1975). The Standard Penetration Test and the Engineering Properties of Glacial Materials. Proc. Symp. On Engineering Properties of Glacial Materials, Midlands Geotechnical Society, Birmingham, pp.117-128.
