|
Abstract In stevenhirsch mine section of 22121 fully-mechanized caving cut large span, top-coal strength is low, the actual condition of surrounding rock stability, analyzed the thick seam fully mechanized cut rock damage reason, determine the roadway with the miners' steel shed + anchor + monomers column joint supporting technology, discusses the roadway supporting parameters, are observed at the same time, master the supporting effect, the implementation of the results showed that the supporting effect is good, laid the foundation for the smooth installation working face.
|