Construction and operation of ductless heating networks in St. Petersburg is characterized by a number of difficulties associated with a high degree of watered soil and, in particular, with the presence of buried peat bogs. Microorganisms of these peat bogs contribute to the development of corrosion processes in steel pipes of heating networks. The article gives recommendations on prevention of pipe corrosion during operation of heating mains in such conditions.
In this paper, the method developed by Professor S.T. Kuznetsov for calculating the delamination of sedimentary roof rocks with close elastic characteristics is proposed to be transferred to transversal-isotropic interlayered rocks. The issue of predicting possible patterns of delamination and detachment of interbedded rocks with elastic anisotropy is very important, since the obtained information is used in selecting and properly placing high-capacity complexes and mechanized supports, as well as in solving other important problems of mining geomechanics.
