Modeling of the confining effect due to the geosynthetic wrapping of compacted soil specimens

Iizuka, Atsushi; Kawai, Katsuyuki; Kim, Eun Ra; Hirata, Masafumi

doi:10.1016/j.geotexmem.2004.01.001

Cited by 15 publications

(10 citation statements)

References 14 publications

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“…For instance, Tissières (1999) compared the boulder braking force to the embankment shearing force assuming that during the impact a section of the embankment is displaced as a rigid body. Generally speaking engineers design the structure by modelling the impact force by an equivalent static surcharge (Jaecklin, 2006). Numerical simulations, based on the finite element method or the discrete element method, appear to be more appropriate and satisfactory in attempting to account for the complexity of the impact on embankments (Burroughs et al, 1993;Hearn et al, 1995;Peila et al, 2002Peila et al, , 2007Plassiard et al, 2004;Carotti et al, 2004;Sung et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Scherbatiuk et al (2008) studied the stability of cellular structures subjected to dynamic loadings caused by blast. At the cell scale, the confinement effect of an envelope on a granular geomaterial has mainly been studied under static loadings (Bathurst and Rajagopal, 1993;Gourvès et al, 1996;Rajagopal et al, 1999;Iizuka et al, 2004). In these studies, cells were mainly filled with fine materials and had a cross-section like either a circle or honeycomb.…”

Section: Introductionmentioning

confidence: 99%

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Experimental study of the impact response of geocells as components of rockfall protection embankments

Lambert¹,

Gotteland

Nicot³

2009

Nat. Hazards Earth Syst. Sci.

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Abstract. Rockfall protection embankments are ground levees designed to stop falling boulders. This paper investigates the behaviour of geocells to be used as components of these structures. Geocells, or cellular confinement systems, are composite structures associating a manufactured envelope with a granular geomaterial. Single cubic geocells were subjected to the impact resulting from dropping a spherical boulder. The geocells were filled with fine or coarse materials and different boundary conditions were applied on the lateral faces. The response is analysed in terms of the impact force and the force transmitted by the geocell to its rigid base. The influence on the geocell response of both the fill material and the cell boundary conditions is analysed. The aim was to identify the conditions resulting in greatest reduction of the transmitted force and also to provide data for the validation of a specific numerical model.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental study of the impact response of geocells as components of rockfall protection embankments

Lambert¹,

Gotteland

Nicot³

2009

Nat. Hazards Earth Syst. Sci.

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“…Later, other types of reinforcement such as continuous filaments and randomly distributed small discrete inclusions in the form of fibers, rods, discs, shavings, meshes, and multioriented elements have been increasingly used. Numerous researchers have examined the effect of reinforcement of soil (Yang and Wang, 1999;Iizuka et al, 2004;Katarzyna, 2006;Park and Tan, 2005;Patra et al, 2005;Varuso et al, 2005;Yetimoglu et al, 2005;Fleming et al, 2006;Latha and Murthy, 2006).Studies have been performed on the conventional forms of reinforcements. For example, the planar form of reinforcement in sand using geosynthetic layers has been studied by Chandrasekaran et al (1989), Haeri et al (2000), andVenkatappa Rao et al (2005).…”

Section: Introductionmentioning

confidence: 99%

Influence of multi directional reinforcements on the pore pressure dissipation and volume change behaviour of saturated cohesionless soils

Harikumar

Sankar

Chandrakaran

2016

International Journal of Geotechnical Engineering

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“…sheet, bars and strips were used either arranged in a systematic or random manner within the soil mass. Numerous researchers have examined the effect of reinforcement of soil [1][2][3][4][5][6][7][8]. The conventional forms of reinforcements as discussed above have been a subject of great interest for researchers.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Cohesionless Soil Reinforced with Three Dimensional Inclusions Under Plane Strain Conditions

Harikumar

Sankar

Chandrakaran

2015

J. Inst. Eng. India Ser. A

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Since 1969, when the concept of earth reinforcing was brought about by Henry Vidal, a large variety of materials such as steel bars, tire shreds, polypropylene, polyester, glass fibres, coir and jute fibres etc. have been widely added to soil mass randomly or in a regular, oriented manner. The conventional reinforcements in use were two dimensional or planar, in the form of strips with negligible widths or in the form of sheets. In this investigation, a novel concept of multi oriented plastic reinforcement (hexa-pods) is discussed. Direct shear tests were conducted on unreinforced and reinforced dry fine, medium and coarse sands. Detailed parametric studies with respect to the effective grain size of soil (d 10 ), normal stress (r) and the volume ratio of hexa-pods (V r ) were performed. It was noticed that addition of hexa-pods resulted in increase in the shear strength parameters viz. peak deviatoric stresses and increased angle of internal friction. The hexapods also changed the brittle behaviour of unreinforced sand samples to ductile ones. Although the peak shear stress did not show a considerable improvement, the angle of internal friction improved noticeably. Addition of a single layer of reinforcement along the shear plane also reduced the post peak loss of strength and changed the soil behavior from brittle to a ductile one.

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Modeling of the confining effect due to the geosynthetic wrapping of compacted soil specimens

Cited by 15 publications

References 14 publications

Experimental study of the impact response of geocells as components of rockfall protection embankments

Experimental study of the impact response of geocells as components of rockfall protection embankments

Influence of multi directional reinforcements on the pore pressure dissipation and volume change behaviour of saturated cohesionless soils

Behaviour of Cohesionless Soil Reinforced with Three Dimensional Inclusions Under Plane Strain Conditions

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