In recent years, more and more work has been carried out on the introduction of rod support in stoping, capital and preparatory mine workings at mines and shafts in the Soviet Union. The rod supports are tested in various mining and geological conditions as permanent, temporary and auxiliary supports, as well as to prevent floor heave at the bottom of workings.
The application of rod support to combat rock heave in mine workings in Donbass mines has shown that conventional rod locks do not provide reliable anchoring in clayey rocks. Their pull-out forces during tests did not exceed 1–1.5 tons, which is completely insufficient for metal rods. Therefore, to combat clay heave in workings of mines in the Moscow Basin, the authors have proposed a metal tubular rod support.