Large scale model test investigation on wave run-up in irregular waves at slender piles

Analogue materials are widely used to simulate prototype rocks in geo-mechanical model tests. The large amounts of solid waste generated by a large-scale model test has always posed problems for studies. The re-use of analogue materials can significantly reduce the cost of geo-mechanical model tests and the resulting environmental problems. However, despite the environmental and economic benefits, there have been few reports on the re-use of analogue materials. In this work, a recycling method for a resin-based analogue material is studied experimentally. More than 300 samples were prepared and tested. By adding a certain amount of resin in solution form to the recycled material, regenerated samples with properties consistent with those of the samples prior to recycling were obtained. Based on a comparative analysis of the test data, an equation is proposed for the calculation of the appropriate amount of resin addition in the recycling process. Thus, a simple and effective recycling method is established for a resin-based analogue material. Verification was performed by independent tests on three group samples with different proportions, and the possibility of repeated recycling was also confirmed. The proposed recycling method makes the cyclic utilization of resin-based analogue material possible and is helpful for reducing the cost and pollution of geo-mechanical model tests.

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Large-scale model test on square box culvert backfilled with sand. Technical note

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts ◽

10.1016/0148-9062(91)91038-s ◽

1991 ◽

Vol 28 (4) ◽

pp. A254

Keyword(s):

Model Test ◽

Large Scale ◽

Technical Note ◽

Scale Model ◽

Large Scale Model ◽

Box Culvert ◽

Square Box

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HYDRAULIC PERFORMANCE OF ELASTOMERIC BONDED PERMEABLE REVETMENTS AND SUBSOIL RESPONSE TO WAVE LOADS

Coastal Engineering Proceedings ◽

10.9753/icce.v32.structures.22 ◽

2011 ◽

Vol 1 (32) ◽

pp. 22

Author(s):

Hocine Oumeraci ◽

Tijl Staal ◽

Saskia Pfoertner ◽

Matthias Kudella ◽

Stefan Schimmels ◽

...

Keyword(s):

Large Scale ◽

Hydraulic Performance ◽

Soil Liquefaction ◽

Scale Model ◽

Research Centre ◽

Wave Loads ◽

Large Scale Model ◽

Wide Range ◽

Physically Based ◽

Run Up

Elastomeric bonded permeable revetments, also called PBA (Polyurethane bonded aggregate) revetments, are highly porous structures made of mineral aggregates (e.g. crushed stones) which are durably and elastically bonded by polyurethane (PU). Despite their numerous advantages as compared to conventional revetments and the large experience available from more than 25 pilot projects, physically-based design formulae to predict their hydraulic performance, wave loading and response are still lacking. Therefore, the present study aims at improving the understanding of the processes involved in the interaction between wave, revetment and foundation, based on large-scale model tests performed in the Coastal Research Centre (FZK), Hannover/Germany, and to provide prediction formulae/diagrams. This paper is focused on the prediction of the hydraulic performance (wave reflection, wave run-up and run-down) and the response of the sand core (pore pressure and effective stress) beneath the revetment for a wide range of wave conditions, including the analysis of an observed failure due to transient soil liquefaction.

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