Analytical approach to evaluate stability of pile-stabilized slope

Hajiazizi, Mohammad; Mazaheri, Ahmadreza; Orense, Rolando P.

doi:10.24200/sci.2017.4218

Cited by 9 publications

(3 citation statements)

References 28 publications

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“…13c); soil arch between piles disappears gradually when the pile spacing increases and only a single anti-slide pile works at this moment. To sum up, the interaction between pile and soil is fully considered with the numerical simulation method and the factor of safety, internal force and deformation of piles obtained under various reinforcement options are more realistic, which is in good agreement with previous studies (Cai and Ugai 2000;Gao et al 2015;Hajiazizi et al 2017b;Jeong et al 2003;Sun et al 2016;Yang et al 2011b). Therefore, it is feasible to obtain the optimization indexes values by the numerical simulation and to optimize designs combined with the proposed multi-objective comprehensive optimization model.…”

Section: Influence Of Anti-slide Pile Spacing On Slope Reinforcementsupporting

confidence: 84%

“…The researches about pile location reveal the fact that the best slope reinforcement effect can be obtained when the anti-slide pile is located in the middle of the slope (Ausilio et al 2001;Cai and Ugai 2000;Hajiazizi et al 2017a;Li et al 2012;Li et al 2020;Zhang et al 2017b), even gave the precise pile location which is 0.2m above the middle of the slope. The studies about optimal pile spacing show that the smaller spacing of the anti-slide pile is, the better integrity of reinforced slope is, which is more conducive to the stability of the reinforced slope (Cai and Ugai 2000;Hajiazizi et al 2017b;Jeong et al 2003;Kourkoulis et al 2011;Sun et al 2016;Zhang et al 2017a), but the determination of pile spacing mainly depends on the soil arching effect between piles in practical engineering. Although these studies have a guiding significance for the optimization design of anti-slide piles, the optimization results may have some certain deviations which are because the only the factor of safety of reinforced slope is taken as the only optimization objective.…”

Section: Introductionmentioning

confidence: 99%

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A New Multi-objective Comprehensive Optimization Model for Design of Anti-slide Piles

Xue

Cui

et al. 2021

Preprint

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Landslides have posed a huge threat to the ecological environment and human society all over the world. As the most conventional reinforcement method, anti-slide piles are widely used in the reinforcement of slopes. Currently, more and more attentions have been paid to the low-cost and high-efficiency optimal design of anti-slide piles. However, limitations in the method of the optimization design for slope reinforced with piles still exist. In this paper, a new multi-objective comprehensive optimization method was proposed for the optimization of the slope reinforced with anti-slide piles. The factor of safety, internal force and deflection of piles were selected as the optimization indexes and the optimization index weight was determined by integrating the subjective and objective weight. The influence of the pile location, pile length and pile spacing on the reinforcement effect was analyzed by the numerical simulation. Through the simulation case analysis, the proposed model had achieved good effects on the optimization design of anti-slide piles, which could effectively reduce the engineering costs. The optimization results showed that the best reinforcement effect for the homogeneous slope could be obtained when the anti-slide piles with the critical pile length and small pile spacing was located in the middle of the slope. This provides a new solution for the optimization design of other types of complex slopes, and has broad application prospects.

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Section: Influence Of Anti-slide Pile Spacing On Slope Reinforcementsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

A New Multi-objective Comprehensive Optimization Model for Design of Anti-slide Piles

Xue

Cui

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…To sum up, the interaction between pile and soil is fully considered with the numerical simulation method, and the factor of safety, bending moment, shear force, and deflection of anti-slide piles obtained under various reinforcement options are more realistic, which is in good agreement with previous studies [3,18,34]. Therefore, it is feasible to obtain the optimization index values by the numerical simulation and to optimize designs combined with the proposed multi-objective comprehensive optimization model.…”

Section: Influence Of Anti-slide Pile Spacing On Slopesupporting

confidence: 75%

A New Multi-Objective Comprehensive Optimization Model for Homogeneous Slope Reinforced by Anti-Slide Piles: Insights from Numerical Simulation

Xue

Cui

et al. 2022

Lithosphere

View full text Add to dashboard Cite

Landslides have posed a huge threat to the ecological environment and human society all over the world. As the most conventional reinforcement method, anti-slide piles are widely used in the reinforcement of slopes. Currently, more and more attention has been paid to the low-cost and high-efficiency optimal design of anti-slide piles. However, limitations in the method of the optimization design for slopes reinforced with piles still exist. In this paper, a new multi-objective comprehensive optimization method was proposed for the optimization of the slope reinforced with anti-slide piles. The factor of safety, internal force, and deflection of piles were selected as the optimization indexes, and the optimization index weight was determined by integrating the subjective and objective weights. The influence of pile locations, pile lengths, and pile spacings on the reinforcement effect of a homogeneous slope was analyzed via the numerical simulation. Through the simulation case analysis, the proposed model had achieved good effects on the optimization design of anti-slide piles, which could effectively reduce the engineering costs. The optimization results showed that the best reinforcement effect for the homogeneous slope could be obtained when the anti-slide piles with the critical pile length and small pile spacing were located in the middle of the slope. This provides a new solution for the optimization design of other types of complex slopes and has broad application prospects.

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Physical model tests and numerical modeling of stabilizing mechanism of portal double-row piles in landslides with interbedded weak and hard bedrock

Xiong

Yao

et al. 2022

Bull Eng Geol Environ

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Analytical approach to evaluate stability of pile-stabilized slope

Cited by 9 publications

References 28 publications

A New Multi-objective Comprehensive Optimization Model for Design of Anti-slide Piles

A New Multi-objective Comprehensive Optimization Model for Design of Anti-slide Piles

A New Multi-Objective Comprehensive Optimization Model for Homogeneous Slope Reinforced by Anti-Slide Piles: Insights from Numerical Simulation

Physical model tests and numerical modeling of stabilizing mechanism of portal double-row piles in landslides with interbedded weak and hard bedrock

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