摘要
岩体结构面形成因素复杂,结构面的特征对岩体的力学性能有着重要影响。对岩体结构面作出定性、定量分析和评价,无论是对岩体基本力学特性的研究,还是岩体稳定性分析都具有十分重要的意义。通过对某石灰石露天矿边坡岩体开展基于回弹测试,利用JRC-JCS模型的巴顿强度公式获取的不连续结构面抗剪强度参数,利用查理兹建立的回弹值与结构面内摩擦角关系与通过室内直剪强度参数及经验法确定的不连续结构面强度参数进行对比研究,为露天矿山边坡稳定性研究提供依据。
The formation factors of rock mass structural planes are complex,and the characteristics of structural planes have a significant impact on the mechanical properties of rock masses.Qualitative and quantitative analysis and evaluation of rock mass structural planes are of great significance,whether it is the study of basic mechanical properties of rock mass or the analysis of rock mass stability.By conducting rebound testing on the rock mass of a limestone open-pit mine slope,the shear strength parameters of discontinuous structural planes were obtained using the Barton strength formula of the JRC-JCS model.The relationship between rebound value and internal friction angle of structural planes established by Charlize was compared with the strength parameters of discontinuous structural planes determined through indoor direct shear strength parameters and empirical methods,providing a basis for the stability research of open-pit mine slopes.
作者
鲁旭荣
邓爽
吴占廷
Lu Xurong;Deng Shuang;Wu Zhanting(Kaili University,Kaili,China;Guiyang Branch of Northwest Comprehensive Survey and Design Institute,Guiyang,China)
出处
《科学技术创新》
2023年第23期169-173,共5页
Scientific and Technological Innovation
基金
凯里学院2023年教学内容和课程体系改革项目(JG202323)。
