| 摘要 |
The method for evaluation of structural changes of anisotropic rocks at dynamical load on models includes well drilling, sampling rocks (core samples), and determination of physical-mechanical characteristics and deformations of rocks. First on the block of ore deposit prepared for development, in the places of laying a set of fan wells, exploration wells are bored, with selection of directed samples, in laboratory conditions sections are formed, then the model of rock massif is installed to conductor with centering it, and by the trace of the sample in the center by whole thickness blast hole is drilled, with installation to blasting chamber, space between the inner wall of the chamber and the surface of the model is filled with damper, with charging the charge of ES and blasting, at that samples of the model are destroyed as well on high-speed stand, then the destroyed sections of the model are taken out from the chamber and the high-speed stand, and through interpretation of the data of mass measurements of destroyed parts of the model by means of the method of optical microscopy granulometric characteristics of those are determined, and the structural changes that take place in the rock under effect of different types of loads are determined by the methods RSA, TGA and DTA analyses at comparison to the reference samples. |
