Method for repairing large-burial-depth rock burst mine roadway

The invention relates to the technical field of coal mine roadway repairing, in particular to a method for repairing a large-burial-depth rock burst mine roadway. The method for repairing a large-burial-depth rock burst mine roadway comprises the following steps: supporting, thin-spraying sealing, d...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LIU PENG, SUN JIANGUO, SU LICHONG, WANG ZHONGMI, MENG QINGXIN, MI SHITING, ZHU HUI, YUAN RENPENG, ZHANG XIN, YUE LEI, SUN NING, WANG QIJIE, LIU WEIXIN, SONG TAO, HE YUSHOU
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to the technical field of coal mine roadway repairing, in particular to a method for repairing a large-burial-depth rock burst mine roadway. The method for repairing a large-burial-depth rock burst mine roadway comprises the following steps: supporting, thin-spraying sealing, deep-hole grouting and re-spraying; wherein the thin-spraying sealing process is mainly used for filling shallow loose and broken surrounding rock to form a shallow anchor rod compression area built-up arch; deep-hole grouting is used for cementing deep loose surrounding rock to form a deep slurry diffusion reinforcing arch; and deep-hole grouting is used for ensuring that slurry has zero permeability so as to be tightly combined with the deep loose surrounding rock and firmly bonded with a thin-spraying sealing layer. The large particles in the slurry are not easy to settle, and the stability of the grouted arch-shaped structural surface is high; thin-spraying sealing and deep-hole groutingare matched to form a dou