METHOD FOR DETERMINING CRACK POSITION ELEMENTS Russian patent published in 2007 - IPC G01V9/00 

FIELD: mining industry, possible use for zoning quarry and mine fields on basis of qualitative and quantitative estimation of rock fracturing parameters.

SUBSTANCE: in accordance to the invention, crack outcropping section is photographed in crack extension and crack falling planes. During filming within limits of filmed frames a cross-shaped basis is positioned for further orientation and calibration of raster images of photographs, which are digitized and in that form are used for building 3D model of crack distribution in space. Measurements of azimuths, falling angles and linear parameters of cracks are performed in this 3D model, databases are formed in parallel to produce statistic-probability crack distribution models, used for predicting influence of structural composition of rock in development technology, stability of mines, spread of mineral resource in subsurface.

EFFECT: prevented large volumes of direct measurements of crack placement elements in field conditions with simultaneously increased precision and trustworthiness of crack distribution parameters in rocks, increased level of information concerning spatial positioning of cracks.

2 cl, 5 dwg