中国地质灾害与防治学报2025，Vol.36Issue(2)：87-95,9.DOI:10.16031/j.cnki.issn.1003-8035.202412021
台风作用下植被对边坡稳定性的影响机制研究
Impacts of trees on slope stability during typhoons
摘要
Abstract
Typhoon-induced landslides in southeast coastal China are clustered in trees-covered slopes,suggesting potential interactions between trees and slope stability.Investigate the impacts of trees is crucial for slope stability analysis during typhoons.With this purpose,we conduct field tests,laboratory tests and dye tracer tests to investigate the root distribution and impacts of roots on soil properties.Results indicate that trees covered on slopes have a taproot system with a maximum rooting depth of 2 m.Tree roots enhance slope stability by providing additional cohesion to the soil but simultaneously create preferential flow paths that facilitate rapid rainwater infiltration.The contribution of preferential flow arising from root-soil gaps reaches 2 to 3 times greater than uniform shallow infiltration.These dual effects of root reinforcement and preferential infiltration significantly alter the mechanical and hydrological properties of the soil at the maximum rooting depth.During a typhoon event,the strong wind load,rainfall infiltration and trees jointly trigger landslides.The maximum rooting depth and bed-soil interface are two potential sliding surfaces within the slope.Our works provide new insights into the risk assessment of typhoon-induced landslides.关键词
台风暴雨型滑坡/植被覆盖边坡/根系力学加筋/优势渗流效应Key words
typhoon-induced landslide/trees-covered slope/root reinforcement/preferential infiltration分类
地质学引用本文复制引用
庄宇,邢爱国..台风作用下植被对边坡稳定性的影响机制研究[J].中国地质灾害与防治学报,2025,36(2):87-95,9.基金项目
国家自然科学基金项目(4217071410) （4217071410）
国家重点研发计划项目(2024YFC3012600 （）
2024YFC3012602) （）
