Work

An Analytical Method for Determining the Stress–Strain State of a Subgrade with Combined Reinforcement

Year: 2024

Type: article

Abstract: This article presents the fundamentals of an analytical method for determining the stress–strain state of a railway subgrade reinforced with geosynthetic material. The reinforcement described is a combined system where the geosynthetic material forms an open shell containing a layer of compacted crushed stone. The overall stress–strain state is proposed to be viewed as a superposition of two states of the subgrade. The stresses and displacements in the first state refer to the unreinforced subgrade (matrix), while the stress–strain state of the reinforcement element is determined using analytical constructs from composite theory. The dependencies of the overall stress–strain state are applied in a numerical analysis, which confirms the positive effect of reduced subgrade deformations. A small-scale experimental model further validates the accuracy of the analytical approach.

Source: Infrastructures

DOI: 10.3390/infrastructures9120240

Authors: Ahmad Alkhdour, Oleksii Tiutkin, Szabolcs Fischer, Dmytro Kurhan

Institutions: Al-Balqa Applied University, Ukrainian State University of Science and Technologies, Széchenyi István University

Language: English

Topic: Geotechnical Engineering and Soil Stabilization

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,046