Notice of RetractionStudy on the Gob-Effect Mines and Its Risk Classification Method

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

Gob consequentially exists in those mines where open-stope method is adopted, and its area will be growing with the constantly mining. Due to lack of scientific understanding and management, the accidents of gob roof caving in large occurred sometimes, causing heavy casualties and property losses. In recent years, the typical accidents have occurred more and more frequently, and the severity and danger has initially appeared. Therefore, at the point of safe production and disaster prevention, it is necessary to make risk classification to these mines. This article puts forward the concept of gob-effect mines and the method of risk classification from the view of disaster prevention and hazard control, which helps to make risk assessment to this type of mines and develop effective preventive measures according to the classification.