Proactive rockburst protection method and driving method for downhole roadway
The invention relates to the technical field of mine engineering, and provides a proactive rockburst protection method for a downhole roadway. The method comprises the following steps of S1, cutting aroadway tunnel face, and conducting pumice stone removal on surrounding rock at a top slope of the c...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of mine engineering, and provides a proactive rockburst protection method for a downhole roadway. The method comprises the following steps of S1, cutting aroadway tunnel face, and conducting pumice stone removal on surrounding rock at a top slope of the cut roadway tunnel face; S2, after pumice stone removal is completed, conducting anchor net supporting on the top slope in a timely manner, and hanging a temporary protection safety net at the upper middle portion of the dug tunnel face; and S3, after anchor net supporting is finished, adopting an anchor rod for anchoring an anchor net. The invention furthermore provides a driving method for the downhole roadway. The driving method for the downhole roadway comprises the steps of Sa, Sb, Sc and Sd. According to the proactive rockburst protection method and driving method for the downhole roadway, proactive protection is adopted, direct harm of splattered chippings generated when rockburst occurs to rock mass under ex |
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