The issues of determination of stresses in rock massif at its heating by high-temperature steam are considered. The obtained dependences for determining the temperature stresses correspond to both flat and volumetric stressed state of the rock massif.
The article deals with the issues of efficiency of pipeline transportation of hardening mixtures for laying of excavated spaces for conditions of petrotitanium deposit. The methodology of determination of key parameters of pipelines for delivery of hardening mixtures to the places of their laying is developed. Schemes of the main devices and devices for controlling the work of pipelines are given.
