开挖速度对赣南某高速公路强风化板岩高边坡稳定性影响研究  

Stability of Highly Weathered Slate High Slopes of a Highway in Southern Jiangxi withVarying Excavation Rates

作　　者：文贤清 WEN Xian-qing(China Railway 11th Bureau Group Xi'an Construction Co.,Ltd.,Xi'an 712038,China)

机构地区：[1]中铁十一局集团西安建设有限公司,西安712038

出　　处：《价值工程》2025年第5期4-6,共3页Value Engineering

摘　　要：边坡开挖速度影响高速公路建设速度,为了分析开挖速度对边坡稳定性的影响,以赣南某高速公路强风化板岩高边坡为研究背景,通过数值模拟的方法,分析高边坡最大水平位移、最大剪应变和安全系数变化规律。结果表明,边坡同时开挖后的最大水平位移最小,其它不同开挖速度下的最大水平位移基本一致;不同开挖速度边坡的水平位移和最大剪应变分布规律基本一致,最大值位于第一级边坡;不同开挖速度边坡的安全系数一样。研究结果可为边坡快速开挖提供理论支撑。The excavation rate of slopes affects the construction speed of highways.To analyze the impact of excavation rate on slope stability,a study was conducted using a highly weathered slate high slope along a highway in southern Jiangxi as the research background.Numerical simulation methods were employed to analyze the changes in maximum horizontal displacement,maximum shear strain,and safety factor of the high slope.The results indicate that the maximum horizontal displacement is smallest when the slope is excavated simultaneously,while it remains basically consistent under other excavation rates.The distribution patterns of horizontal displacement and maximum shear strain on slopes with different excavation rates are generally consistent,with the maximum values located at the first-level slope.Additionally,the safety factors of slopes with different excavation rates are identical.The findings of this study can provide technical support for rapid slope excavation.

关 键 词：高速公路 高边坡 稳定性 强风化板岩 

分 类 号：U416[交通运输工程—道路与铁道工程]