Open-pit mining - WikipediaOpen-pit, open-cast or open cut mining is a surface mining technique of extracting rock or . The steps in the walls help prevent rock falls continuing down the entire face of the wall. In some instances additional ground support is required and.the steps involved in open pit mining,the steps involved in open pit mining,Open Pit Mining Techniques|Surface Mines|Rock or Mineral ExtractionOpen-pit mining, also known as opencast mining, open-cut mining, and strip . The inclined part of the wall is called the batter, and the flat part of the step is.
the steps involved in open pit mining