The study determines the optimum location of the pile and its optimum inclination to achieve the maximum stability. The results show that using the 3D aspect gives more insight into the complicated slope stability problem. The findings of the research were compared to other findings from the literature. A parametric study was undertaken to study the effect of pile position, pile inclination, pile length and pile diameter on the factor of safety of the piled-slopes. The 3D model was verified using experimental data from the literature for a stabilized silty sand slope in a large-scale physical model. A 3D finite element model was developed using the finite element program PLAXIS. A 3 dimensional (3D) finite element study is carried out to investigate the effect of different parameters on the stability of slopes stabilized with piles. Stabilized slopes with piles are numerically studied in the current paper. Piles are commonly used to stabilize slopes or to improve slope stability. Slope stability can be achieved using different methods. Comparing the results, the limitation of 2D analysis for piled cohesive-frictional slope is highlighted. In 3D analyses, it is shown that spacing ratio beyond S/D = 4 ( S: pile spacing, D: diameter of the pile), the soil will flow between piles leading to a total vanish of the arching effect when S/D exceeds 12.
PLAXIS 2D FOR SLOPE STABILITY ANALYSIS FREE
Piles with free head contribute marginally to the increased factor of safety of cohesive-frictional slope. According to the obtained results, the fixed pile head located at the slope middle better improves the stability and reduces the optimal length of the pile. Next, more rigorous parametric studies taking account of the exact geometry was carried out using 3D analyses. First, 2D parametric studies were performed to identify both the optimal location and length of the pile as well as the effect of pile head conditions. Fluctuation of soils cohesion and angle of internal friction influencing element of FOS have been considered for slopes.In this paper, numerical computations using PLAXIS 2D and 3D have been conducted to optimize a row of piles in cohesive-frictional slope stabilization. The position of sliding surface and dynamic simulation of instability can be obtain as well. 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.
PLAXIS 2D FOR SLOPE STABILITY ANALYSIS SOFTWARE
Three illustrations are giving to assessment FOS. This article analyze the slope stability by strength reduction method named Phi-c which supplied by FE software PLAXIS. This examination additionally explored the influence of embankment height and its slopes (geometry) on strength.
For basic homogenous soil slopes, it was discovered that the outcomes from these strategies are for the most part in great assention. The FOS is found by utilizing finite element (FE), limit equilibrium (LE), Morgenston – Price ,quality decrease and other technique accessible in the utilized programming. At last, it was discovered that the Plaxisprogram was more preservationist when contrasted with Taylor's technique. The Taylor’s stability condition is utilized for finding the FOS of undrained and depleted soil slope.
The main objective of this paper is to compare the difference between the Plaxis 2D Program and Taylor's Stability Equation technique for estimation of factor of safety (FOS) of slopes under various states of soil profile.Plaxis is a fit programming and simple to utilize limited finite element package for 2D and 3D assessment of deformation and stability in geotechnical stream. Regularly, unique experts breaking down a similar issue will evaluate a extensive variety in estimated execution. Slopes Stability Analysis of regular and artificial slopes is a testing soil mechanics issue.
0 kommentar(er)
