ABSTRACT

The result of mining workings driving is rock mass discontinuity that implies the redistribution rocks stress and strain state and change the initial stress field in the mass. Process of continual stress redistribution in the mass is characteristic for mining workings which change the position in time and space, i.e. for operating longwalls and development faces. The artificial cavities are driven in the rock mass, cause change of stresses in any limited area of mass that leads to formation so-called zone of mining working influence on this mass that is characterized anomalous stress field in comparison with the initial one. The specified zone moves synchronous with working face advancing, i.e. in process of face advance all new, earlier virgin parts of the rock mass get to zone of mining working influence.