585
6 EXTENSIONS
The monitoring stations of both development stages can be flexibly extended by additional
components such as:
• Connection of a rope path receiver to measure the current depth of the shaft column in
cm/m in order to record even the smallest slow changes in the vertical position of the column. Additionally, exact depth limit values can be pre-set now: if these values are reached,
warning and alarm messages can be generated.
• LED signal light and siren in order to generate warn and alarm messages directly on the
spot if the shaft column is sinking.
The monitoring stations of both development stages have been in use at different abandoned shafts in the Ruhr area and the Saarland; they show a high level of reliability and provide optimal support to RAG in their online monitoring of surface openings of abandoned
hard-coal mining. Further areas of use, e.g. the monitoring of mine dewatering shafts, are
being planned.
6 EXTENSIONS
The monitoring stations of both development stages can be flexibly extended by additional
components such as:
• Connection of a rope path receiver to measure the current depth of the shaft column in
cm/m in order to record even the smallest slow changes in the vertical position of the column. Additionally, exact depth limit values can be pre-set now: if these values are reached,
warning and alarm messages can be generated.
• LED signal light and siren in order to generate warn and alarm messages directly on the
spot if the shaft column is sinking.
The monitoring stations of both development stages have been in use at different abandoned shafts in the Ruhr area and the Saarland; they show a high level of reliability and provide optimal support to RAG in their online monitoring of surface openings of abandoned
hard-coal mining. Further areas of use, e.g. the monitoring of mine dewatering shafts, are
being planned.