Regularities of the day surface deformation during layer mining by consecutive lavas

Abstract

The main objective of this work is to find an analytical ratio, which could describe the form of a trough to simplify the forecast of deformation of a day surface during the development of underground mining operations. The interactive algorithm for finding of the defining parameters of such a ratio, which allows to expand the borders of the use of traditional approach significantly, is offered. The example of interpretation of the data, obtained within the measurement of subsidence of a day surface in the mine named after Kirov in Kuzbass during consecutive mining of two lavas is reviewed. The analytical ratio for the description of a form of a trough from one lava is received and proved to be fair for the following lava; that gives the basis to consider it fair for the subsequent mining of the layer.