Failure behavior and mechanism of slopes reinforced using soil nail wall under various loading conditions

Zhang, Ga; Cao, Jie; Wang, Liping

doi:10.1016/j.sandf.2014.11.011

Cited by 28 publications

(12 citation statements)

References 21 publications

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“…The failure mechanism of the soil-nailed wall has been addressed by researchers such as Tufenkjian and Vucetic (2000) and Zhang et al (2014)). In the current study, however, the failure mechanism was compared to the limit equilibrium results for the slip surface shape and size.…”

Section: Comparison Of Failure Mechanisms and Repeatability Of Testsmentioning

confidence: 99%

“…The parameters defining a regular layout of nails were introduced by Ghalehnovi (2014). Although most studies evaluated the first and second categories (Milligan and Tei, 1998;Rotte and Viswanadham, 2012;Zhang et al, 2014;Shahraki Ghadimi et al, 2017), Ghalehnovi (2014) concluded that the third category also had a considerable effect on the performance of a soil-nailed wall. Milligan and Tei (1998) performed geotechnical centrifuge experiments on 24 models of vertically nailed walls that were 20 cm in height, prepared by dry Leighton-Bazard sand.…”

Section: Introductionmentioning

confidence: 99%

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Studying the effect of geometrical nail layout on the performance of soil-nailed walls: Physical and numerical modeling

Sabermahani¹

2021

Acta Geodynamica Et Geomaterialia

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Soil nailing is a reliable method of stabilising earth and rock slopes, but the geometrical layout of soil nails has not been well studied. The current research examined the effect of the geometrical layout of soil nails using analytical and physical modelling. The results of limit equilibrium analysis for different nail layouts are presented. The target gravity level was 50 g for centrifuge models and all models had a safety factor of 1.35 at this level. The parameters studied were base nail length, angle of nail tail extension, horizontal spacing of nails, and nail density. The limit equilibrium results showed that, when longer nails were used, the nail density could be decreased. The results of centrifuge modelling confirmed that different layouts at a similar safety factor did not show similar levels of displacement. Also, nail density was the most influential parameter affecting soil-nailed wall performance. An empirical relationship was observed between displacements of the wall crest and nail density. An interesting similarity was observed between the predicted slip surface and the slip surface that formed during physical modelling.

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Section: Comparison Of Failure Mechanisms and Repeatability Of Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Studying the effect of geometrical nail layout on the performance of soil-nailed walls: Physical and numerical modeling

Sabermahani¹

2021

Acta Geodynamica Et Geomaterialia

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“…e strength reduction method is used to solve the safety factor of the wrapped reinforced earth slope (see equations (11) and ( 12)). According to the calculation of solving FOS in the software, the safety factors of the three loading conditions are obtained, as shown in Table 3.…”

Section: Tensile Stress Of Geogridmentioning

confidence: 99%

“…In this study, a series of centrifuge model tests were conducted on slopes reinforced with a soil nail wall under three types of loading conditions. Test results showed that the soil nailing significantly reduced the deformation of the slope and accordingly delayed the occurrence of the deformation localization [11]. Ling et al analyzed both static and dynamic characteristics of the reinforced Earth retaining wall.…”

Section: Introductionmentioning

confidence: 99%

Study on the Stability of the Geogrids-Reinforced Earth Slope under the Coupling Effect of Rainfall and Earthquake

Zhang

Huang

Hou

et al. 2020

Mathematical Problems in Engineering

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This paper focuses on understanding the dynamic response problem of flexible wrapped reinforced Earth slope under the coupling effect of earthquake and rainfall; a numerical calculation model of reinforced Earth slope considering the coupling effect of earthquake and rainfall was established. The dynamic response, pore pressure, and tensile stress distribution of the reinforcement under the rainfall before earthquake, the rainfall after the earthquake, and earthquake-rainfall are studied. The results show that the coupling effect of earthquake and rainfall is an influential factor in the dynamic analysis of reinforced Earth slopes, the analysis of which should be paid attention to and researched in the future. The combination of geogrid and soil effectively improves the deformation of the slope and the overall stability, reduces the secondary disaster of the slope, and provides a reference for the seismic construction design of the reinforced Earth slope.

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“…While reference [36] investigate the failure behavior and mechanism of slopes reinforced using soil nail wall under various loading conditions. They explained that soil nailing significantly increased the stability level and restricted the tension cracks of the slopes and underlined that increasing the nail length improved the stability of reinforced slopes with deeper slip surfaces.…”

Section: State Of the Art Of Nailed Soil Slopes Researchmentioning

confidence: 99%

On the Nailed Soil Slopes Research Development

Munawir¹

2017

GEOMATE

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The slope stability was researched over the past decades, understandings the behavior of nailed soil slopes, with their properties and characteristics, have guided to development of enhanced recognizing of the variation in nailed soil slopes parameters. Failures can arise over time, hence the identification of the necessities and the restrictions of laboratory and in situ testing for evaluating nailing parameter have to be deeply understood. Many researcher have enriched and refined the knowledges of the principles of soil nailing mechanics that associate soil behavior to slope stability and factor of safety. This paper is aimed to explore some of important state of the art development of nailed soil slope and analytical techniques extended by extensive investigation of the mechanics of slope stability analyses. The most significant effective parameter that play important role in slope safety factor in almost of many works are length, nailing angle, and distance between center to center of nails. Slope angle, connection of nailed head, the distance with toe and nail diameter were also the points that cannot be neglected in their study. Choosing the proper cable or pile element in the finite element modeling and the mobilized both axial and shear forces are also reviewed in this paper.

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Failure behavior and mechanism of slopes reinforced using soil nail wall under various loading conditions

Cited by 28 publications

References 21 publications

Studying the effect of geometrical nail layout on the performance of soil-nailed walls: Physical and numerical modeling

Studying the effect of geometrical nail layout on the performance of soil-nailed walls: Physical and numerical modeling

Study on the Stability of the Geogrids-Reinforced Earth Slope under the Coupling Effect of Rainfall and Earthquake

On the Nailed Soil Slopes Research Development

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