Numerical Analysis on the Stability of Sandstone-Covered Mudstone Cutting Slopes Considering Rainfall Infiltration-Reference-Cited by-同舟云学术

Numerical Analysis on the Stability of Sandstone-Covered Mudstone Cutting Slopes Considering Rainfall Infiltration

Published:2023-01-31 Issue:3 Volume:13 Page:1802
ISSN:2076-3417
Container-title:Applied Sciences
language:en
Short-container-title:Applied Sciences

Author:

Guo Ying¹²³,Du Yating¹,Shan Wei¹²³,Liu Mengdi¹,Zhang Chengcheng¹²³

Affiliation:

1. Institute of Cold Regions Science and Engineering, Northeast Forestry University, Harbin 150040, China

2. Ministry of Education Observation and Research Station of Permafrost Geo-Environment System in Northeast China (MEORS-PGSNEC), Harbin 150040, China

3. Collaborative Innovation Centre for Permafrost Environment and Road Construction and Maintenance in Northeast China (CIC-PERCM), Harbin 150040, China

Abstract

Landslide caused by rainfall are easily produced when excavating conduct in sandstone-covered mudstone strata. The expansion project of the Heishan Village to Jixi section of Dan-A Highway is used as an example to study the formation and damage mechanism of rainfall-induced landslide in sandstone-covered mudstone cutting slope. Finite element numerical is used to analyze the stability of the slope by using Geo-Studio and ANSYS software for the three different rainfall-influencing factors of rainfall intensity, duration and rainfall form. The study indicates that rainfall time and intensity will decrease the stability of the cutting slope, and that the effect of rainfall on the slope is lagging behind. When rainfall intensity is 80 mm, rainfall duration is 1 d, and stagnation is 5 h, the slope instability is in the critical state. The front slope toe is the first unstable part in the process of slope instability. Rock and artificial construction are important reasons for this phenomenon.

Funder

National Natural Science Foundation of China

Carbon Neutrality Fund of Northeast Forestry University

Science and Technology Project of Heilongjiang Communications Investment Group

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Link

https://www.mdpi.com/2076-3417/13/3/1802/pdf

Reference22 articles.

1. Stability of Streambanks Formed in Partially Saturated Soils and Effects of Negative Pore Water Pressures: The Sieve River (Italy);Rinaldi;Geomorphology,1999

2. Pre-estimation on variations of rainfalls with different intensities and their contributions to total rainfall under emission scenarios in China from 2006 to 2100;Kong;Water Resour. Hydropower Eng.,2017

3. The Summary of Research on the Softening and Disintegration Mechanism of Mudstone;Pan;Yunnan Water Power,2016

4. Model Experimental Research on Disintegration Behaviors of Argillaceous Rock;Zhu;Mod. Transp. Technol.,2022

5. Characteristics of a certain landslip in inter-bedded area of mudstone and argillaceous siltstone in Nanning and its control measures;Peng;Miner. Resour. Geol.,2013