Arching effect on lateral pressure of confined granular material: numerical and theoretical analysis

Li, Ming-Guang; Chen, Jin-Jian; Wang, Jianhua

doi:10.1007/s10035-017-0700-2

Cited by 52 publications

(23 citation statements)

References 37 publications

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“…About 9000 particles are generated to form the specimen with dimension of 0.5 m × 1.0 m for numerical simulation of biaxial compression test. This number of particles is considered to be sufficient to simulate the test, which is closely consistent with that used in previous studies . The specimens for the biaxial compression tests are prepared by the improved multi‐layer compaction method, where the gravity is absent.…”

Section: Numerical Model Of Demmentioning

confidence: 89%

“…This number of particles is considered to be sufficient to simulate the test, which is closely consistent with that used in previous studies. 41,47 The specimens for the biaxial compression tests are prepared by the improved multi-layer compaction method, 14 where the gravity is absent. Particles are generated and cycled to equilibrium layer by layer so that the porosity of assembly can be controlled throughout the preparation process.…”

Section: Materials Properties and Mechanical Behaviourmentioning

confidence: 99%

“…The objective of this paper is to study the stress redistribution in the loosening zone of a trapdoor problem with confined granular matter by numerical and theoretical analysis. A series of numerical models of trapdoor tests are established through the DEM, which has been widely used in the research of arching effect in granular matter . The stress states in the loosening zone are recorded in the process of the numerical trapdoor test.…”

Section: Introductionmentioning

confidence: 99%

“…A series of numerical models of trapdoor tests are established through the DEM, 39,40 which has been widely used in the research of arching effect in granular matter. 8,[14][15][16][41][42][43][44] The stress states in the loosening zone are recorded in the process of the numerical trapdoor test. Changes of the principal stress' direction are calculated, and the shape of major principal stress' trajectory obtained from numerical simulation is compared with other arc, catenary, and parabolic shapes.…”

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confidence: 99%

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Numerical and theoretical research on stress distribution in the loosening zone of the trapdoor problem

Liang

2019

Num Anal Meth Geomechanics

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Summary The traditional theory of soil arching effect was developed on the assumption that stress distribution in the loosening zone is uniform. However, because of the deflection of principal stress' direction, the stress distribution in the loosening zone is actually ununiform. For the evaluation of principal stress axis deflection and stress redistribution, a discrete element method numerical model of trapdoor problem is established for the simulation of soil arching effect. Based on the numerical results, an arc shape of major principal stress trajectory and uniform horizontal stress distribution at the same depth of the loosening zone are adopted. An analytical model is raised to estimate the average loosening earth pressure acting on the trapdoor and stress distribution in the loosening zone at a limit state. In addition, comparison studies are carried out between the predictions of the proposed solutions and discrete element method numerical results as well as available model test results, thereby validating the accuracy of the proposed theoretical model. Both numerical and theoretical results indicate that the vertical stress distribution in the loosening zone is obviously ununiform. The load acting in the middle of loosening zone is transferred toward two sides so that the vertical stress distribution in loosening zone is concave.

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Section: Numerical Model Of Demmentioning

confidence: 89%

Section: Materials Properties and Mechanical Behaviourmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Numerical and theoretical research on stress distribution in the loosening zone of the trapdoor problem

Liang

2019

Num Anal Meth Geomechanics

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“…For example, Dalvi et al [4] argued that the internal friction angle of the retained soil affected the load distribution on the stabilizing piles. Li et al [5] based on the theory of soil arching, concluded that the translation of the retaining wall between piles and the pile spacing affects the load distribution on the stabilizing piles. Cai et al [6] based on the theory of soil arching, proposed the calculation method of passive earth pressure behind the soil arching.…”

Section: Introductionmentioning

confidence: 99%

Study of Vertical Variation Regularity of Horizontal Soil Arching Height Along Pile Length

Li¹

2017

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Stabilizing piles are now considered one of the most effective measures of enhancing the stability of landslides, the horizontal soil arching effect has an important influence on the force of the structure between piles. Until now, the variation of the soil arching height along pile length is not considered in practice, and the variation which can affect the force of stabilizing piles and the structures between piles. This paper presents the numerical simulation to analyze the law of the variation of soil arching height along pile length. The results show that (a) the height of the soil arching decreases monotonously along pile length; (b) the position of the soil arching appears above sliding surface and under the pile-top; (c) the soil arching effect cannot be considered under the sliding surface.

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Influence of Adjacent Substructures on Deformation Behavior and Lateral Earth Pressure Development of Flexible Retaining Walls at Non-limit State

Demeijer

Chen

et al. 2018

Sustainable Civil Infrastructures

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Arching effect on lateral pressure of confined granular material: numerical and theoretical analysis

Cited by 52 publications

References 37 publications

Numerical and theoretical research on stress distribution in the loosening zone of the trapdoor problem

Numerical and theoretical research on stress distribution in the loosening zone of the trapdoor problem

Study of Vertical Variation Regularity of Horizontal Soil Arching Height Along Pile Length

Influence of Adjacent Substructures on Deformation Behavior and Lateral Earth Pressure Development of Flexible Retaining Walls at Non-limit State

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