| Summary: | On the account of the advantages benefited regarding the correlation of the sliding work regime with the specific characteristics of the predominant rocks from the lithostratigraphical structure of the Jiu Valley’s underground, the support of metallic elements continues to represent the most advantageous version from the technical and economical point of view. Besides a series of advantages, including the ensuring of bearing capacity expected per meter of work by applying the correct adopted support fields, the metallic support presents deficiencies generated by the irrational usage of steel for machining rolled profiles, with repercussions on imperfections recorded on element’s cold cutting and bending, including over the underground operation period of the armouring. The target of presented paper is to analyze those deficiencies with their evaluation trough analytical calculation and the presentation of counter measures
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