Nachträgliche Sicherung alter Bergbauschächte - Konkrete Richtlinie für die Planung und Ausführung erforderlich

Subsequent backup of old mining shafts - concrete guidelines for the planning and execution required

With the end of the coal industry, the focus has intensified on the associated eternity burden and the required follow-up. In addition to issues such as the use of former mining-dominated areas or the consequences of the mine water rise in the condition of many old mining shafts should be clarified. If in doubt, check whether the state of the prior art shaft corresponds or must be a subsequent backup. This is an assurance in quality and durability, as performed in the custody of younger civil engineering shafts according to the state of the art, subsequently difficult to achieve. The limited technical lifetime of the subsequent assurance in connection with eternity burden of mining shafts is a problem that needs to be particularly considered. The working circle 4.6 "abandoned mines" of the DGGT recommendations were developed for securing and safekeeping of the old mining. For NRW the "guide to the keep of days manholes" was issued by the district government of Arnsberg. According to the authors concrete and comprehensive guideline for hedging old mining shafts is required on this basis that serves the mining companies, engineering firms, government agencies and contractors as a guide. With this paper the authors provide a basis for discussion in the preparation of this Directive.