Abstract
To study the influence of excav ation and rainfall on the stability of high steep road cutting slopes, relying on an actual project, the unsaturated slope seepage and stability were analyzed by a self-programmed calculation program using FLAC3D software, and the corresponding reinforcement optimization scheme was studied through the analysis of the pile spacing of anti-slip piles and the length of the anchoring section. The results indicate that:① The surface soil of the slope is greatly affected by excavation. With the decrease of the excavation slope ratio, the horizontal displacement decreases;the vertical displacement remains basically unchanged, and stress concentration exists at the toe of the slope at all step levels;② The top and toe of the slope are greatly affected after rainfall;the overall displacement increases;the instability increases, and the location of the potential sliding surface moves to the middle and lower parts;③ By comprehensively considering the slope states under rainfall and no-rainfall conditions, an excavation slope ratio of 1:1. 5 is the most appropriate;④ By comprehensively analyzing the support effects under rainfall and no-rainfall conditions, it is most suitable when the pile spacing of anti-slip piles is 8 m, and the length of the anchoring section is 13 m.
Publication Date
4-24-2026
DOI
10.14048/j.issn.1671-2579.2026.02.004
First Page
31
Last Page
38
Submission Date
April 2026
Recommended Citation
Zhenshan, CHEN and Hao, PENG
(2026)
"Study on Stability Analysis and Reinforcement Scheme of High Steep Road Cutting Slope Excavat ion under Rainfall Conditions,"
Journal of China & Foreign Highway: Vol. 46:
Iss.
2, Article 4.
DOI: 10.14048/j.issn.1671-2579.2026.02.004
Available at:
https://zwgl1980.csust.edu.cn/journal/vol46/iss2/4
Reference
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