Design method for geotextile tubes considering strain – Formulation and verification by laboratory tests using photogrammetry

Cantré, Stefan; Saathoff, Fokke

doi:10.1016/j.geotexmem.2010.10.009

Cited by 45 publications

(17 citation statements)

References 25 publications

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“…There is also a tradition of geosynthetics research at the department, already starting in the 1980s and still continuing, with focus on geosynthetics used in the interface of geotechnical and hydraulic engineering (Saathoff 2003;Saathoff et al 2007;Cantré, Saathoff 2011) and with respect to dike reconstruction (Saathoff 2006;.…”

Section: Scientific Backgroundmentioning

confidence: 99%

Installation of Fine-Grained Organic Dredged Materials in Combination With Geosynthetics in the German Dredgdikes Research Dike Facility

Cantré

Saathoff

2014

Engineering Structures and Technologies

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In the project DredgDikes with partners from Poland and Germany different dredged materials from the South Baltic Sea region are investigated with respect to their application in dike construction. Two large-scale experimental dikes have been built, one in Germany and one in Poland. Additionally, an extensive laboratory testing programme has been realised and a considerable monitoring test programme will be followed. Based on a short general description of the project this paper covers the issue of installation technology for the dredged materials used and a discussion of geotechnical parameters to be determined for material evaluation and quality control. Due to the high and variable natural water contents of the organic soils together with their inhomogenous composition the compactability is difficult to predict and proctor values may not be reliably determined. During the installation three different compaction technologies were compared and no extreme differences could be found, which is why the compaction with a caterpillar was chosen for efficiency on site. The critical analysis of the data, however, shows slightly better compaction results for the roller compactors. In general the degree of compaction was comparably low. Therefore, different possibilities to improve compaction are discussed in this paper, such as the homogenisation of the dredged material by simple in situ mixing technologies, which will be issues for further research.

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Section: Scientific Backgroundmentioning

confidence: 99%

Installation of Fine-Grained Organic Dredged Materials in Combination With Geosynthetics in the German Dredgdikes Research Dike Facility

Cantré

Saathoff

2014

Engineering Structures and Technologies

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“…Theoretically, it is assumed in the analysis that the geotextile strain only appears along the free perimeter L f of the tube where only elastic deformation occurs and the strains are considered to be constant (Cantré and Saathoff 2011). The free perimeter is the part of the geotextile tube's surface with no contact to the ground, that is…”

Section: Geotextile Strainmentioning

confidence: 99%

“…Brink et al (2013) has proposed a consolidation modelling method for geotextile tubes filled with fine-grained materials. Cantré and Saathoff (2011) has numerically formulated a design method for tubes considering the geotextile strain. It is particularly difficult to determine analytically the applied stresses on the skin and on the fill material due to its erratic nature of geotextile tubes during the filling and dewatering stages.…”

Section: Introductionmentioning

confidence: 99%

Stress and strain behavior investigation on a scale model geotextile tube for Saemangeum dike project

Kim¹,

Lee²,

Jo³

et al. 2014

Ocean Systems Engineering

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Geotextile tubes are basically a huge sack filled with sand or dredged soil. Geotextile tubes are made of permeable woven or non-woven synthetic fibers (i.e., polyester or PET and polypropylene or PP). The geotextile tubes' performances in strength, dewatering, retaining solid particles and stacked stability have been studied extensively in the past. However, only little research has been done in the observation of the deformation behavior of geotextile tubes. In this paper, a large-scale apparatus for geotextile tube experiment is introduced. The apparatus is equipped with a slurry mixing station, pumping and delivery station, an observation station and a data station. For this study the large-scale apparatus was utilized in the studies regarding the stresses on the geotextile and the deformation behavior of the geotextile tube. Model tests were conducted using a custom-made woven geotextile tubes. Load cells placed at the inner belly of the geotextile tube to monitor the total soil pressure. Strain gauges were also placed on the outer skin of the tube to measure the geotextile strain. The pressure and strain sensors are attached to a data logger that sends the collected data to a desktop computer. The experiment results showed that the maximum geotextile strain occurs at the sides of the tube and the soil pressure distribution varies at each geotextile tube section.

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“…The filtration applications of woven slit-film geotextiles are typically subjected to tensile strains, which can cause pore size variations (Hong and Wu, 2011;Rawal and Saraswat, 2011). For example, geotextile tubes and bags composed of woven slit-film geotextiles are often used to dewater contaminated or other types of sludge (Cantre and Saathoff, 2011;Weggel et al, 2011). Interface friction between the fill and tube cause a significant increase in the strain of geotextiles (Plaut and Stephens, 2012).…”

Section: Introductionmentioning

confidence: 99%

Prediction of pore size characteristics of woven slit-film geotextiles subjected to tensile strains

Tang

Lin

She

et al. 2013

Geotextiles and Geomembranes

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Design method for geotextile tubes considering strain – Formulation and verification by laboratory tests using photogrammetry

Cited by 45 publications

References 25 publications

Installation of Fine-Grained Organic Dredged Materials in Combination With Geosynthetics in the German Dredgdikes Research Dike Facility

Installation of Fine-Grained Organic Dredged Materials in Combination With Geosynthetics in the German Dredgdikes Research Dike Facility

Stress and strain behavior investigation on a scale model geotextile tube for Saemangeum dike project

Prediction of pore size characteristics of woven slit-film geotextiles subjected to tensile strains

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