Analytical solutions for three-dimensional stability of limited slopes

Han, C. Y.; Xia, Xing; Wang, J. H.

doi:10.1007/s12204-012-1262-4

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…6. The similar shape of this mechanism was considered by Michalowski and Drescher (2009) and Xia et al (2012). The trace of the mechanism on the symmetry plane is described by two circular arcs, AC and A9C9.…”

Section: D Overall Stabilitymentioning

confidence: 80%

Limit Analysis for Local and Overall Stability of a Slurry Trench in Cohesive Soil

et al. 2015

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This paper uses limit analysis to develop a two-dimensional (2D) and a three-dimensional (3D) analysis of slurry trench local and overall stability for cohesive soil. Formulas for the slurry trench stability analysis are obtained through theoretical derivation based on limit analysis theory, and rotational mechanisms are then presented for slurry trench stability. For 2D slurry trench local and overall stability, the failure surface has the shape of a circular arc, whereas it has the shape of spherical cap for 3D local stability, and it has the shape of a torus with an outline defined by a circle for 3D overall stability. Examples are provided to illustrate the safety factor influenced by the slurry and soil bulk density ratio, slurry level depth and trench depth ratio, thickness of the weak soil layer, cohesion, and trench width and depth ratio. The safety factor for the 3D solutions is approximately 1.1 times greater than the safety factor for the 2D solutions for local stability but 1.2 times greater (B=h 5 1) for overall stability.

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Section: D Overall Stabilitymentioning

confidence: 80%

Limit Analysis for Local and Overall Stability of a Slurry Trench in Cohesive Soil

et al. 2015

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“…2 for frictional/cohesive soil with a logarithmic helicoid surface, in which the failure surface is assumed to pass through the top and the toe of the slurry trench. The same shape of this mechanism is considered by Michalowski and Drescher (2009), Han et al (2013), and Xia et al (2012) for the evaluating safety factor of slope. Soil over the failure surface rotates about the center of rotation O.…”

Section: D Analysis Of Slurry Trench Stabilitymentioning

confidence: 99%

“…With the slope angle β=90°, expressions of the rate of internal energy dissipation (D) and the work rate of soil weight (W s ) for the 3D failure mechanism can be found in (Michalowski and Drescher, 2009;Han et al, 2013;Xia et al, 2012).…”

Section: D Analysis Of Slurry Trench Stabilitymentioning

confidence: 99%

2D and 3D stability analysis of slurry trench in frictional/cohesive soil

Han

Chen

Wang

et al. 2013

J. Zhejiang Univ. Sci. A

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A 2D and 3D kinematically admissible rotational failure mechanism is presented for homogeneous slurry trenches in frictional/cohesive soils. Analytical approaches are derived to obtain the upper bounds on slurry trench stability in the strict framework of limit analysis. It is shown that the factor of safety from a 3D analysis will be greater than that from a 2D analysis. Compared with the limit equilibrium method, the limit analysis method yields an unconservative estimate on the safety factors. A set of examples are presented in a wide range of parameters for 2D and 3D homogeneous slurry trenches. The factor of safety increases with increasing slurry and soil bulk density ratio, cohesion, friction angle, and with decreasing slurry level depth and trench depth ratio, trench width and depth ratio. It is convenient to assess the safety for the homogeneous slurry trenches in practical applications.

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“…As personalized consumption strengthen continuously, product differentiation degree improve continuously, the speed of the upgrade accelerated gradually, product life cycle shorter increasingly, a lot of product of end of life is generated in today's society.In order to save resources and make full use of the value of these EOL products,they need to be recycled [1].As the consciousness of environmental protection enhanced gradually, laws of producers are responsible for recycling regulations issued one after another, EPR(extended producer responsibility)system attracts more and more people's attention, which makes the reverse logistics become hot areas of the academic research.…”

Section: Introductionmentioning

confidence: 99%

Research on the Double Source Stock Control for a Manufacturer Based on EPR

Wan

Fan

2014

AMR

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With the widely acception of extended producer responsibility system, reverse logistics has attracted more and more attention. For manufacturers, reverse logistics activities is not inseparable to the general forward logistics, and they constitute the closed-loop supply chain. Decision makers of enterprises need to control the new products inventory and the recovered materials inventory to make the enterprises get the maximum profit.In this paper,the inventory characteristics under the closed-loop supply chain be analyzed and a inventory model for a single repair period, many production period is proposed .On condition that the number of recovery is controlled by the recycling price and is equal in different cycles,the recovered products can be sold as new.A economic production quantity and recycling price can be solved to make the total cost of a single cycle lowest ,which provides a basis for business decisions.

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Analytical solutions for three-dimensional stability of limited slopes

Cited by 7 publications

References 6 publications

Limit Analysis for Local and Overall Stability of a Slurry Trench in Cohesive Soil

Limit Analysis for Local and Overall Stability of a Slurry Trench in Cohesive Soil

2D and 3D stability analysis of slurry trench in frictional/cohesive soil

Research on the Double Source Stock Control for a Manufacturer Based on EPR

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