Experimental evaluation of dynamic deformation characteristics of sheet pile retaining walls with fiber reinforced backfill

Jamshidi, Reihaneh; Towhata, Ikuo; Ghiassian, H.; Tabarsa, Alireza

doi:10.1016/j.soildyn.2009.12.017

Cited by 55 publications

(19 citation statements)

References 16 publications

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“…The randomly distributed fibers capture and redistribute loads through their tensile strength, mobilizing a wider mass of soil, which in turn greatly improve the mechanical response of the material. [1,17,23] Experimental results from various tests (direct shear, unconfined compression and triaxial compression) have confirmed that the efficiency of fiber treatment is highly dependent on the fiber concentration, on testing conditions (e.g., stress and strain levels, stress path and loading direction) and on a large number of variables related equally to the physical and dimensional characteristics of both fiber and sand matrix (e.g.,fiber and particle sizes and particle size distribution, particle shape and fiber surface, fiber/grain frictional properties, stiffness) as well as their spatial configuration (e.g., matrix packing and fiber orientation, fiber distribution). However,a limited number of studies have been focused on the investigation of the behavior of polypropylene fiber reinforced sand using the direct shear apparatus.…”

Section: Introductionmentioning

confidence: 93%

Effect of randomly distributed polypropylene fiber reinforcement on the shear behavior of sandy soil

Benziane

Della

Denine

et al. 2019

Studia Geotechnica Et Mechanica

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The inclusions of geosynthetic materials (fibers, geomembranes and geotextiles) is a new improvement technique that ensures uniformity in the soil during construction. The use of tension resisting discreet inclusions like polypropylene fibers has attracted a significant amount of attention these past years in the improvement of soil performance in a cost-efficient manner. A series of direct shear box tests were conducted on unreinforced and reinforced Chlef sand with different contents of fibers (0, 0.25, 0.5 and0.75%) in order to study the mechanical behavior of sand reinforced with polypropylene fibers. Samples were prepared at three different relative densities 30%, 50% and 80% representing loose, medium dense and dense states,respectively, and performed at normal stresses of 50, 100 and 200 kPa. The experimental results show that the mechanical characteristics are improved with the addition of polypropylene fibers. The inclusion of randomly distributed fibers has a significant effect on the shear strength and dilation of sandy soil. The increase in strength is a function of fiber content, where it has been shown that the mechanical characteristics improve with the increase in fiber content up to 0.75%, this improvement is more significant at a higher normal stress and relative density.

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Section: Introductionmentioning

confidence: 93%

Effect of randomly distributed polypropylene fiber reinforcement on the shear behavior of sandy soil

Benziane

Della

Denine

et al. 2019

Studia Geotechnica Et Mechanica

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“…Richards and Elms [28] proposed an analytical solution by extending the Newmark sliding block method [29] to estimate the displacement of a retaining wall during an earthquake. Many researchers like [30][31][32][33][34][35][36][37][38][39][40][41] have also provided analytical, experimental, and numerical work based on the Newmark sliding block method and thereby applying the displacement-based approach to compute the displacement and rotation of a retaining wall under seismic loading; and as such assessing the stability of retaining structures based on allowable displacement.…”

Section: Introductionmentioning

confidence: 99%

A finite element performance-based approach to correlate movement of a rigid retaining wall with seismic earth pressure

Bakr

Ahmad

2018

Soil Dynamics and Earthquake Engineering

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The paper presents a unique finite element model-based investigation and development of a relationship between the seismic active and passive earth pressure and the movement of a rigid retaining wall. A hardening soil with small strain model with consideration of the Rayleigh damping has been adopted for modelling soil. Validation of the finite element model has been carried out by using centrifuge test results already available in the literature. Unique design charts have been proposed highlighting the relationship between the seismic earth pressure and the wall movement. It is observed that the seismic active earth pressure is independent of the seismic input motion and hence does not depend upon the wall movement during an earthquake, while on the contrary the seismic passive earth pressure is significantly affected by it. Comparison of the results of the present study with the Mononobe-Okabe and pseudo-dynamic methods clearly highlights that the latter overestimates the seismic earth pressure. The proposed design charts and other results provide an important cue to the design engineers.

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“…In addition to using raw materials as fibrous reinforcement armatures, alternative materials can be utilised as added-value materials in a variety of different shapes and textures, e.g. shredded, fibrous, sheets, smooth or rough, heavy-or lightweight, brittle or ductile, natural or synthetic, etc., whilst arising at lower cost and with less environmental impact (jamshidi, 2010;Galán-Marin, 2010). To reduce the impact of natural disasters such as floods, landslides and earthquakes in susceptible areas, earth can be stabilised by fibre reinforcement to increase the shear strength of slopes as discussed in Chapter 19.…”

Section: 6mentioning

confidence: 99%

Soil stabilisation and earth construction: materials, properties and techniques

Hall

Najim

Dehdezi

2012

Modern Earth Buildings

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Experimental evaluation of dynamic deformation characteristics of sheet pile retaining walls with fiber reinforced backfill

Cited by 55 publications

References 16 publications

Effect of randomly distributed polypropylene fiber reinforcement on the shear behavior of sandy soil

Effect of randomly distributed polypropylene fiber reinforcement on the shear behavior of sandy soil

A finite element performance-based approach to correlate movement of a rigid retaining wall with seismic earth pressure

Soil stabilisation and earth construction: materials, properties and techniques

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