Limit analysis of vertical anti-pulling screw pile group under inclined loading on 3D elastic-plastic finite element strength reduction method

2014 ◽  
Vol 21 (3) ◽  
pp. 1165-1175 ◽  
Author(s):  
Tian-wen Dong ◽  
Ying-ren Zheng
Keyword(s):  
Finite Element ◽  
Limit Analysis ◽  
Reduction Method ◽  
Pile Group ◽  
Strength Reduction ◽  
Strength Reduction Method ◽  
Elastic Plastic ◽  
Screw Pile ◽  
Inclined Loading

Failure Mechanism of a Slope Anti-Sliding Pile

2013 ◽  
Vol 639-640 ◽  
pp. 593-597
Author(s):  
Lin Chen ◽  
Yong Yao ◽  
Jiong Yang ◽  
Zhao Qiang Zhang
Keyword(s):  
Finite Element ◽  
Failure Mechanism ◽  
Reduction Method ◽  
Strength Reduction ◽  
Strength Reduction Method ◽  
Analysis Method ◽  
Feasible Method ◽  
Finite Element Software ◽  
Slope Excavation ◽  
Pile Design

According to finite element strength reduction method，the article has discussed the failure mechanism of anti-sliding pile by using finite element software MIDAS /GTS ，exploration report and anti-sliding pile design data.The comparative analysis shows that the failure of anti-siding pile is contributed by the slope excavation and rainwater.The analysis method and results can provide reference significance to other anti-sliding pile design.This paper also provide a feasible method for prediction of consequence in slope excavation.

Basic Analysis of Homogenous Slope Stability by Finite Element Method Based on Plaxis

2012 ◽  
Vol 446-449 ◽  
pp. 1838-1841
Author(s):  
Jia Yu Tong Li ◽  
Ke Bin Shi ◽  
Xin Jun Yan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Slope Stability ◽  
Dynamic Simulation ◽  
Reduction Method ◽  
Reduction Factor ◽  
Strength Reduction ◽  
Strength Reduction Method ◽  
Sliding Surface ◽  
The Moment

This article analyze the slope stability by strength reduction method named Phi-c which supplied by FE software PLAXIS. The reduction factor is suggest to be the safety factor of the slope at the moment when the slope reaches instability, the numerical non-convergence occurs simultaneously. The position of sliding surface and dynamic simulation of instability can be obtain as well. This article has compared the results calculated by other methods Bishop and ABAQUS with difference between 2%-3% which attest to its accuracy and practicability in engineering.

scholarly journals Construction of 3D Creep Model of Landslide Slip-Surface Soil and Secondary Development Based on FLAC3D

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Li Wang ◽  
Shimei Wang ◽  
Gao Li ◽  
Lin Wang
Keyword(s):  
Finite Element ◽  
Rheological Properties ◽  
Reduction Method ◽  
Surface Soil ◽  
Slip Surface ◽  
Strength Reduction ◽  
Creep Model ◽  
Secondary Development ◽  
Strength Reduction Method ◽  
Finite Element Software

Landslide deformations have predictable rheological properties, but, when using finite element analysis, only the elastoplastic constitutive equation of soil is considered. Soil creep properties are not considered, often rendering inaccurate results. In this paper, the three-dimensional state equation of the extended Burgers model is derived based on the creep test results of slip-surface soil and the Mohr–Coulomb elastoplastic model. This paper uses FLAC3D, a finite-element software platform, for secondary development and to verify the accuracy of the model and program. A strength reduction method that considers rheological properties is proposed. A numerical simulation of rheological properties is conducted on a landslide and compared with conventional viscoelastic constitutive results. It can be found that the landslide displacement calculation is significantly smaller when the rheological properties are not considered. The stability coefficient of the landslide calculated by the strength reduction method, considering the rheological properties, is smaller than the coefficient calculated without considering rheological properties.

Stability Analysis of a Reinforced Soil Slope Based on the Strength Reduction Method

2012 ◽  
Vol 204-208 ◽  
pp. 3031-3034 ◽  
Author(s):  
Li Wang ◽  
Shi Mei Wang
Keyword(s):  
Plastic Deformation ◽  
Stability Analysis ◽  
Slope Stability ◽  
Reduction Method ◽  
Geotechnical Engineering ◽  
Reinforced Soil ◽  
Strength Reduction ◽  
Strength Reduction Method ◽  
Elastic Plastic ◽  
Stability Of Slopes

Apply large general-purpose finite element analysis software ABAQUS as a platform, The criterion of iteration non-convergence conventionally used for assessing the instability state of slopes,and an example is given to the following conclusions: The strength reduction method based on ABAQUS simulate anti-slide pile slope stability analysis that has a true reflection of the elastic-plastic deformation in geotechnical engineering,it can be widely used in elastic-plastic deformation problems in geotechnical engineering. The anti-slide pile can effectively improve the stability of slopes, setting up anti-slide pile egitimately in the soil plays an important role at the safety of slope stability.

Stability Analysis of Backfilled Gravel Subgrade Slope with FEM Strength Reduction

2011 ◽  
Vol 243-249 ◽  
pp. 2852-2857
Author(s):  
Kun Yong Zhang ◽  
Tu Gen Feng
Keyword(s):  
Finite Element ◽  
Reduction Method ◽  
Limit Equilibrium ◽  
Strain Analysis ◽  
Strength Reduction ◽  
Strength Reduction Method ◽  
Element Analysis ◽  
Nonlinear Constitutive Model ◽  
Strain Relationship ◽  
Relationship Of

The current study was implemented to evaluate the backfilled gravel subgrade slope stability of a highway, China. Typical crossing section in Jiling Province was evaluated by using the finite element based strength reduction method. The calculation code was developed based on BCF, which was programmed for 2D finite element analysis on soil stress-strain analysis. The Duncan-Chang nonlinear constitutive model was employed to describe the stress and strain relationship of the soils. The safety factor calculated by the strength reduction method was compared with traditional limit equilibrium slice Bishop Method.

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