Bolotnikov A. Development of methods for prediction of the stability of the sides of pits and dumps on the analysis of GNSS-monitoring.

The thesis is given a new solution of actual scientific problems increase economic efficiency and safety of open pit mining, which is achieved by using the method developed resistance prediction slope of open pit and dumps on the analysis of GNSS-monitoring, which allows you to quickly determine the strain state of open mines and on that basis make a reliable forecast of stable or unstable state. On the basis of these studies are designed and proven methodology of working principles for determining the displacement frame profile lines using high-precision GNSS receivers, which can reduce the time spent on work by profiled lines in the 15-20 frames up to 1.5-2 hours, and accuracy measured parameters provide within 5 mm. In the paper we propose to extend the list of parameters characterizing the deformation process of rock slope by definition: acceleration bias frames, the displacement vectors in the proposed sliding surface, frame shift in the direction normal to the line profile, the coefficient of relative displacements. For the first time found that the factor of stability board career decreases linearly with increasing degree of violation secondary output hoppers. Defined thresholds projected violation of the array (PVA = 0.1-0.76), in which the stability of the eastern side open pit № 1 "CGOK" meet regulatory requirements. Based on these calculations recommended SE "Krivbassproekt" increase the value of general angles of slope east side open pit №1 on average 2 degrees compared to previously taken the design variables. This general increase in slope angle 35-37 degrees to allow for regulatory compliance, reduce the overburden of about 7 million m3 and gain economic benefit of around 210 million UAH. Industry - mining (engineerings sciences)