豫西伏牛山区公路边坡岩体多场多相耦合劣化机制研究  

Study on Multi-Field Multi-Phase Coupling Deterioration Mechanism of Highway Slope Rock Mass in Funiu Mountain in Western Henan

作　　者：王珮 晁鹏川 任淼 Wang Pei;Chao Peng-chuan;Ren Miao(School of Architecture and Intelligent Construction,Zhengzhou Vocational University of Information and Technology,Zhengzhou 450046,Henan Province,China)

机构地区：[1]郑州信息科技职业学院建筑工程与智能建造学院,河南郑州450046

出　　处：《科学与信息化》2024年第22期76-78,共3页Technology and Information

基　　金：河南省高等学校重点科研项目计划支持,项目名称:豫西伏牛山区农村公路岩质边坡变质岩劣化研究,项目编号:24B580008;河南省重点研发与推广专项(科技攻关),项目名称:极端降雨条件下豫西卢氏膨胀岩边坡多场多相耦合失稳机制及加固技术研究,项目编号:242102320029;河南省高等学校重点科研项目,项目名称:堆积层滑坡亚失稳状态识别及动态协同演化特征研究,项目编号:25A170021。

摘　　要：豫西伏牛山区公路沿线边坡滑坡、崩塌等地质灾害时有发生,严重妨碍了当地群众的交通出行。选取公路沿线边坡表层岩体——千枚岩,依照赋存环境选取干湿、热湿两种条件,通过对完成不同次数水岩条件养护后的千枚岩进行应力-应变关系、单轴抗压强度测试及矿物分析,结果表明其力学性质随着会随循环次数的增加产生明显的劣化,且热湿条件下劣化程度比干湿条件下劣化程度严重,阐述了千枚岩的劣化响应行为与机理,揭示了斜坡表层千枚岩规律,为伏牛山地区公路边坡滑坡的区划评价和公路安全防治提供了有益的参考。Geological disasters such as landslides and collapses often occur along the slopes of the Funiu Mountain highway in western Henan,and seriously hinder local people's transportation.The surface rock mass of the slope along the highway–phyllite was selected,and two types of conditions,dry wet and hot wet,were selected according to the occurrence environment.The stress-strain relationship,uniaxial compressive strength testing and mineral analysis of the phyllite after different cycles of water rock maintenance was performed.The results showed that its mechanical properties would significantly deteriorate with the increase of cycle times,and the degree of degradation under hot wet conditions was more severe than that under dry wet conditions.The degradation response behavior and mechanism of the phyllite were explained,and the law of surface phyllite on the slope was revealed,which provides useful reference for the zoning evaluation of highway slope landslides and the prevention and control of highway safety in the Funiu Mountain area.

关 键 词：公路边坡 千枚岩 抗压强度 劣化机理 稳定性 

分 类 号：U41[交通运输工程—道路与铁道工程]