Abstract
The results of the analysis of the influence of settlement on the daylight of the cross-sectional shape, depth and transverse dimensions of the underground workings at different numerical values of the lateral pressure coefficient host rock. In the article the peculiarities of changes in the values of the vertical displacements of the ground points located on the symmetry axis of generation, for cross sections of workings in the form of a square, half ellipse, circle and deltoids, depending on their geometric dimensions, depth and the coefficient of lateral pressure of the containing array. Presents graphs of the magnitude of the vertical displacement of ground points lying on the axis of symmetry of workings with a cross section in the form of a square, a circle, a half ellipse and deltoids, as you increase the depth of their laying. The results are compared with the results of other authors. It is established that upon reaching certain values, depth and cross-sectional dimensions of development, the impact of these factors becomes significant and there is the problem of the optimal shape of the cross section of development that provides a minimum amount of precipitation the earth's surface.
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