Akademik Məlumat İdarəetmə Sistemi
SOCAR Proceedings, no.2, pp.25-32, 2018 (Scopus)
At present, in order to protect the pipeline from the permafrost effects, the option of above-ground pipeline laying is increasingly used. Though, despite preventive measures, such as the freezing of soils with the help of seasonally acting cooling devices (SACDs), the way of pipelining in the heaving soils has not proved to be a reliable method. It is shown that the rate of freezing with the generation of an ice-soil cylinder around a thermostabilization device can be determined by solving the conjugate heat transfer problem of the "atmosphere - SACD - soil" system by the method of stationary state transition. Because the rate of soil freezing depends on the temperature regime of the SCD, and, consequently, the moisture migration flow entering to the freezing zone also depends, then it seems possible to control the process of the soil heaving generation. This can be achieved by adopting special constructive solutions or by regulating the operation of the SCDs, avoiding the rates of freezing that are close to extreme, at which the generation of a pingo is possible.