地面摄影测量测定地质结构面产状和几何要素方法的研究

本文详细叙述了用地面摄影测量方法确定露岩地质结构面的产状和几何要素的具体方法,包括摄影、控制,象片上节理面特征点的选取和量测,节理面的拟合和产状要素的算计以及精度评定等,并提出平差计算时采用选权迭代法以剔除粗差、保证成果质量。所编制的产状要素计算软件应用于某矿区的实际计算后证明是成功的,所获结果倾向中误差:m_α0=±1.0°,倾角中误差m_β0=±1.47°,较好地满足用户提出的小于±5°的要求。

Investion of Deferming the Appearance and Geometric Elements for Geological structure Surface by Using Tenestrial Photogrammetry Method

In this paper,a procedure of determing the appearance and geometrical elements for geological structure of bare rock surface by using tenestrial photogrammetry method is described in detail,which includes ground photography、control survey,choice and measurement of special feature points along structure plane on stereoscopic photographs,determination of cleavage surface and calculation of appearance elements as well as accuracy evaluation.A robust method with variable weight is used in order to detect the blunders and to assure the quality of resalts.The corresponding software of calculation rock appearance elements has been developed.Through the practical test using the real data in some mines,the RMSE of m_γ0=±1.0~0,m_β0=±1.47°for tilt direction and tilt angle are obtained,which can satisfy the need of users very well.