岩石边坡滑移失稳的地球物理响应特征  

The feature of the geophysical response of the rock type slope failure

作　　者：张玉池[1,2] 温佩琳[2] 张兆京[1] 

机构地区：[1]桂林矿产地质研究院,广西桂林541004 [2]中南大学,湖南长沙410083

出　　处：《矿产与地质》2010年第4期368-373,共6页Mineral Resources and Geology

摘　　要：根据边坡滑移失稳的地球物理模型,研究了岩石边坡失稳的电阻率、瑞利面波基阶模的相速度、波数等响应特征,揭示了边坡从稳定→失稳演化过程的电阻率、瑞利面波基阶模频散特征变化规律,从而实现了边坡失稳的电阻率、瑞利面波基阶模相速度、波数响应特征的提取。这些特征信息的获得为利用电法勘探方法、瑞利面波法探测岩石边坡失稳的滑动面或结构面位置提供了依据,同时为实时观测,预测预报岩石边坡失稳提供了理论支撑。According to the geophysical model of slope instability,the response characteristics of the resistivity and the velocity and Wave number of primary phase Rayleigh-wave of rock type slopes to slip have been studied systematically.The variety of resistivity and Rayleigh-wave primary frequency dispersion during evolution of slope from steady to unsteady was found,the characteristic marks of resistivity response and the phase velocity and wave number and frequency dispersion curve feature of Rayleigh-wave about slope failure was concluded.All these lead the method of Rayleigh-wave and electrical exploring method not only be used to detect the slip plane or structural plane of unsteady slope,but also to evaluate slope＇s stability and to forecast the situation of slope to slip.

关 键 词：边坡失稳 地球物理模型 电阻率响应特征 瑞利面波频散响应特征 预测预报 

分 类 号：P631.322[天文地球—地质矿产勘探]