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Corresponding Author

于翔鹏yu xiang peng

Abstract

The physical and mechanical properties of road slope soil in the mountainous area of the middle reaches of the Bailongjiang River are prone to deterioration under the strong dry and wet environment formed by concentrated rainfall and high surface temperature in summer, resulting in deformation and instability of road slope soil. To study the degradation process of road slope soil in such drying-wetting conditions, this paper selected the Huama landslide soil as the research object. Meanwhile, it tested the indicators such as particle grading composition, density, liquid plastic limit, shear strength, and uniaxial compressive strength of the soil under multiple times of strong drying-wetting and daily drying-wetting action. The results show that the above indicators undergo significant changes after multiple different drying-wetting cycles, and the change rate in each indicator of the sample after strong drying-wetting cycles is greater than that of daily drying-wetting cycles. Under multiple times of drying-wetting action, the sand content inside the soil decreases, the clay content increases, and the pores expand, thus increasing the uniformity of the sampled particles and the porosity, and reducing roundness.

Publication Date

11-8-2022

DOI

10.14048/j.issn.1671-2579.2022.05.005

First Page

24

Last Page

29

Submission Date

April 2025

Reference

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