危岩体结构面抗剪强度参数反演分析  

Inverse analysis of shear strength parameters base on structural plane of dangerous rock mass

作　　者：庞磊 Pang Lei(Northwest Nonferrous Surveying Engineering Company,Xi’an 710054,China)

机构地区：[1]西北有色勘测工程公司,陕西西安710054

出　　处：《山西建筑》2021年第10期73-75,共3页Shanxi Architecture

摘　　要：以陕西彬县大佛寺石窟危岩体加固治理工程为背景,在研究大佛寺石窟岩质边坡危岩体工程地质特征的基础上,应用岩质边坡稳定性反演分析原理,对危岩体结构面抗剪强度参数进行了反演计算,并评价了相关参数对岩质边坡稳定安全系数的影响。结果表明:结构面抗剪强度参数c和φ值对危岩体的稳定性具有明显的影响,其中c值的敏感性强于φ值的敏感性。给出了彬县大佛寺石窟危岩体结构面抗剪强度指标的建议值:c=48 kPa,φ=27.67°,为危岩体的治理设计提供了参考价值。Taking the Great Buddha Temple Grottoes rock reinforcement treatment project in Shaanxi Bin County as the background,research in grotto rock slope engineering geological characteristics of the dangerous rock mass,on the basis of application of rock slope stability inversion analysis principle,the dangerous rock mass structural plane shear strength parameters for the inversion calculation,and evaluated the related parameters of rock mass slope stability safety coefficient. The results show that the influence of the dangerous rock mass structure surface shear strength parameters c and φ values of rock slope stability safety factor has significant influence,the c value sensitivity is stronger than the sensitivity of the φ. Given Bin County grottoes dangerous rock mass structural plane shear strength index of the suggested values: c = 48 kPa,φ = 27. 67°,provides a reference value for the management design of dangerous rock mass.

关 键 词：泥质砂岩 结构面 抗剪强度参数 反演分析 

分 类 号：P642[天文地球—工程地质学]