1. bookVolume 16 (2021): Issue 1 (June 2021)
Journal Details
License
Format
Journal
eISSN
1338-7278
First Published
29 Mar 2013
Publication timeframe
2 times per year
Languages
English
access type Open Access

Techniques for Optimizing Parameters of Soil Nailed Vertical Cut

Published Online: 12 Jul 2021
Volume & Issue: Volume 16 (2021) - Issue 1 (June 2021)
Page range: 131 - 145
Journal Details
License
Format
Journal
eISSN
1338-7278
First Published
29 Mar 2013
Publication timeframe
2 times per year
Languages
English
Abstract

In this paper a finite-element analysis was carried out using Plaxis2D software to model a vertical cut reinforced by nails. Optimization of the effect of three input parameters on stability design is a key element of the analysis. We compare results obtained by three techniques of design optimization; Taguchi’s Design of Experiment (DOE), Genetic Algorithm (GA) and Particle Swarm Optimization (PSO). The effect of three input factors on stability design was considered: nail length to wall height ratio (A), nail inclination (B) and vertical spacing (C). By altering the parameter variables, the design served to build and acquire a statistically significant mathematical model for optimizing soil nailing wall parameters. The aim is to minimize a single objective function of safety factor and identify the optimal parameters of design among all possibilities. DOE method and result analysis were carried out using MINITAB 18 software, while GA and PSO algorithm analysis were implemented by coding in MATLAB. According to the results, it was found that 9m of length, 2m of vertical spacing and 10° of inclination is the optimal combination minimizing safety factor. The results produced from this study show that all three techniques arrive at the same optimal combination of minimum response.

Keywords

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