水道港口2023，Vol.44Issue(5)：811-818,8.
植物根系-土工垫联合加筋对土体强度影响试验研究
Experimental study on the influence of plant root-geomat joint reinforcement on soil strength
摘要
Abstract
The strength of soil mass is significantly improved by the combined reinforcement effect of the geomat and reinforced turf through their root systems,which has the effect of reducing shallow landslides and surface erosion.Direct shear tests were performed on the remolded soil samples.A quantitative analysis of the strength composition of the reinforced soil was carried out by examining the shear strength of the reinforced soil under different vertical loads and analyzing the influence of factors such as vegetation root content and morphology,geomat,water content,and others on the combined reinforcement effect.The research shows that the strength changes of the soil mass reinforced by the geotechnical pad can be significantly reduced caused by variations in water content and other factors.The effect of water content on the shear strength of the joint-reinforced soil can be fitted by an exponential function relationship.The quantitative study on the shear strength of remolded samples is concurrently conducted.A calculation formula of the shear strength of the remolded soil based on the soil's cohesion,matrix suction,and the reinforcement effect of roots and geomat is established.The good agreement between the calculated and measured values suggests a feasible approach for quantifying intensity.关键词
加筋土/剪切试验/联合加筋/强度量化Key words
reinforced soil/shear test/joint reinforcement/intensity quantization分类
交通工程引用本文复制引用
马驰骋,谭慧明,胡昕..植物根系-土工垫联合加筋对土体强度影响试验研究[J].水道港口,2023,44(5):811-818,8.基金项目
国家自然科学基金资助项目(52078187) （52078187）
西北电力设计院有限公司技术创新项目(KC-2022-001) （KC-2022-001）
