Safety audit of rail transport in open pit mines
In order that the industrial safety audit at hazardous operation objects becomes a source of reliable information, it is required to develop the appropriate regulations and procedures. Inasmuch as Rostekhnadzor has aimed to cancel obligatory expertise of industrial safety, the function of the approval testing, at least to a certain degree, can be given to auditing. This article discusses two auditing scenarios: in case of systematic safety expertise at hazardous production objects and in case of no such expertise undertaken. A procedure is proposed, which allows control over conformance of actual performance specifications of rail transportation stock at an open pit mine to the industrial safety requirements in the frameworks of the safety audit. The procedure includes sampling braking tests, or the comparison of the actual braking performance indices of trains in the most hazardous sections of track with the braking parameters from the dynamic calculations. The method developed at the Institute of Mining, Ural Branch RAS enables taking into account the specific type of braking equipment, is based on the actual physical values and features higher accuracy. The case-studies of the braking test procedures and modeling are given.