New experiences in dike construction with soil-ash composites and fine-grained dredged materials

• Autorzy: Duszyński R. , Duszyńska A. , Cantré S.

Identyfikatory

DOI

10.1515/sgem-2017-0033

• Języki publikacji: EN

Abstrakty

EN

The supporting structure inside a coastal dike is often made of dredged non-uniform sand with good compaction properties. Due to the shortage of natural construction material for both coastal and river dikes and the surplus of different processed materials, new experiments were made with sand-ash mixtures and fine-grained dredged materials to replace both dike core and dike cover materials resulting in economical, environmentally friendly and sustainable dikes. Ash from EC Gdańsk and dredged sand from the Vistula river were mixed to form an engineering material used for dike construction. The optimum sand-ash composites were applied at a field test site to build a large-scale research dike. Fine-grained dredged materials from Germany were chosen to be applied in a second full-scale research dike in Rostock. All materials were investigated according to the standards for soil mechanical analysis. This includes basic soil properties, mechanical characteristics, such as grain-size distribution, compaction parameters, compressibility, shear strength, and water permeability. In the field, the infiltration of water into the dike body as well as the erosion resistance of the cover material against overflowing water was determined. Results of both laboratory and field testing are discussed in this paper. In conclusion, the mixing of bottom ash with mineral soil, such as relatively uniform dredged sand, fairly improves the geotechnical parameters of the composite, compared to the constituents. Depending on the composite, the materials may be suitable to build a dike core or an erosion-resistant dike cover.

Słowa kluczowe

EN

dike; ash; dredged material

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2017
• Tom: Vol. 39, nr 4
• Strony: 17--24
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Duszyński R.

• Gdańsk University of Technology, Department of Geotechnics, Geology and Maritime Engineering, ul. G. Narutowicza 11/12, 80-233 Gdańsk, Poland

autor

Duszyńska A.

• Gdańsk University of Technology, Department of Geotechnics, Geology and Maritime Engineering, ul. G. Narutowicza 11/12, 80-233 Gdańsk, Poland

autor

Cantré S.

• University of Rostock, Chair of Geotechnics and Coastal Engineering, Justus-von-Liebig-Weg 6, 18059 Rostock, Germany

Bibliografia

• [1] BALACHOWSKI L., SIKORA Z., Mechanical properties of bottom ash – dredged material mixtures in laboratory tests, Studia Geotechnica et Mechanica, 2013, Vol. 35, No. 3.
• [2] CANTRÉ S. et al., Full-Scale Flume Experiments to Analyse the Surface Erosion Resistance of Dike Embankments Made of Dredged Materials, ASCE Journal of Waterway, Port, Coastal and Ocean Engineering, published online January 2017, http://dx.doi.org/10.1061/(ASCE)WW.1943-5460.0000375.
• [3] CANTRÉ S., SAATHOFF F., Installation of fine-grained organic dredged materials in combination with geosynthetics in the German DredgDikes research dike facility, Journal Engineering Structures and Technologies, 2013, Vol. 5, Issue 3.
• [4] GROSSE A.-K. et al., The application of disintegration tests for cohesive organic soils, Journal of Environmental Engineering and Landscape Management, 2014, 23(1), 1-14.
• [5] KOKUSHO T. et al., Soil investigation of fly ash deposits improved by heavy compaction method, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2012, 6, 738-746.
• [6] SAATHOFF F. et al., South Baltic Guideline for the Application of Dredged Materials, Coal Combustion Products and Geosynthetics in Dike Construction, Publisher: Published by Universität Rostock and Gdańsk University of Technology, Rostock, January 2015.
• [7] SAATHOFF F. et. al., South Baltic Guideline for the Application of Dredged Materials in Dike Construction – Annex II Scientific Background, PDF attachment to the guideline [www.dredgdikes.eu].
• [8] SIKORA Z., OSSOWSKI R., Geotechnical aspects of dike construction using soil-ash composites, Procedia Engineering, 2013, Vol. 57, 1029-1035.
• [9] WEINSTEINA M., WEISHARB L., Beneficial use of dredged material to enhance the restoration trajectories of formerly diked land, Ecological Engineering, September 2002, Vol. 19, Issue 3, 187-201.
• [10] ZABIELSKA-ADAMSKA K., Laboratory compaction of fly ash and fly ash with cement additions, Journal of Hazardous Materials, 2008, (151), 481-489.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).