Large-Strain Performance Research of XPS Board under Long-Term Load for Controlling Foundation Differential Settlement

Abstract:

Differential settlement may occur in structure foundations for the differences between vertical loads in different parts of the superstructures, or the differences between deformation features of the foundation soils. Then it is of great significance to develop new methods for controlling foundation differential settlement by using special materials, of which the deformation features can be controlled. Through the compression tests, settlement controllable materials can be selected by comparing the bearing capacity and deformation features of different materials experimented in the tests. According to the results of the compression tests in short term and long term, this article analyzed the bearing capacity and deformation features of different materials through the stress-strain curves. The research shows that XPS (Extruded Polystyrene) boards are of high bearing capacity, large strain property and long-term property stability, and are well suited to be used in civil engineering by controlling the differential settlement of the structure foundation.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 527-532
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.527
• Online since: January 2014
• Authors: Xiao Lei Han, Bo Kang Ma, Jia Pu Huang, Wei Mei Kong, Wei Feng Li, Wu Shi
• Keywords: Differential Settlement, Large Strain, Long-Term Compression Test, Material Properties Research

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