Study on the Optimization of Pile Length of Micropiles in Soil Landslides

Abstract

This study summarizes the engineering design and calculation methods of micropiles and proposes a pile length optimization model based on numerical simulation software. Based on the proposed micropile calculation method and optimization method, a specific analysis of a project example was carried out, and a series of calculations, such as micropile design calculation and pile length optimization for the project, was completed. The results show that the miniature pile length optimization model based on numerical simulation finite difference method improves the previous method by automating the optimization process through fast modeling, automatic creation of optimization commands, and output and analysis of optimization results, and realizes the optimization of pile length using numerical simulation, which improves the efficiency of the optimization of the pile length under the premise of guaranteeing accuracy, and achieves the unity of both efficiency and accuracy. The feasibility of this optimization process is proved by engineering examples. The engineering practicability of the micropile design calculation method and optimization method proposed in this study is proved through practice. It provides a reference value for the initial fast and flexible management of small landslides.

Studying the Behavior of Expansive Soil Reinforced by Micropiles

“…The results indicate that quartz and montmorillonite make up the majority of the expansive soil in the research area, accounting for 50% and 38.5% of the total dried in the air sample, respectively, while kaolinite makes up 11.5%. Cheng et al [33] looked at the mini pile design calculation method as well as the micropile length optimization approach. Because rapid modeling allows for the automation of the optimizing process, automated generation of optimizing commands, output, and examination of the optimizing outcomes, and the application of numerical modeling to pile length optimizing, the compact pile length optimizer using the numerical modeling finite difference method improves upon the previous method.…”