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Construction method for grouting reinforcement of surrounding rock fiber slurry of roadway
The invention discloses a construction method for grouting reinforcement of surrounding rock fiber slurry of a roadway. The grouted slurry is fiber slurry, and the fiber slurry is grouting-reinforced by the construction method comprises the steps of drilling holes in the surrounding rock; positioning separating pipes after hole drilling; detonating explosives which are positioned on the inner walls of the separating pipes in advance; positioning anchoring rods in the separating pipes; respectively sleeving the anchoring rods and the separating pipes with slurry stopping plugs to form a double-ring slurry stopping plug; mounting a tray; screwing a nut; grouting the fiber slurry for the first time; connecting grouting pipes with the separation pipes to enable the fiber slurry to penetrate into the surrounding rock through the separation pipes; grouting for the second time; connecting the grouting pipes with the anchoring rods to enable portland cement and sodium silicate slurry to be grouted through the anchoring rods. With the adoption of the construction method, the anchoring rods can act with high performance under a high stress state; the integrity of the anchoring rods, the slurry, the fibers and the surrounding rock can be improved, and the four parts can coordinate to act, so as to completely improve the property of the surrounding rocks, and as a result, the stability of the whole surrounding rock can be ensured.
Construction method for grouting reinforcement of surrounding rock fiber slurry of roadway
The invention discloses a construction method for grouting reinforcement of surrounding rock fiber slurry of a roadway. The grouted slurry is fiber slurry, and the fiber slurry is grouting-reinforced by the construction method comprises the steps of drilling holes in the surrounding rock; positioning separating pipes after hole drilling; detonating explosives which are positioned on the inner walls of the separating pipes in advance; positioning anchoring rods in the separating pipes; respectively sleeving the anchoring rods and the separating pipes with slurry stopping plugs to form a double-ring slurry stopping plug; mounting a tray; screwing a nut; grouting the fiber slurry for the first time; connecting grouting pipes with the separation pipes to enable the fiber slurry to penetrate into the surrounding rock through the separation pipes; grouting for the second time; connecting the grouting pipes with the anchoring rods to enable portland cement and sodium silicate slurry to be grouted through the anchoring rods. With the adoption of the construction method, the anchoring rods can act with high performance under a high stress state; the integrity of the anchoring rods, the slurry, the fibers and the surrounding rock can be improved, and the four parts can coordinate to act, so as to completely improve the property of the surrounding rocks, and as a result, the stability of the whole surrounding rock can be ensured.
Construction method for grouting reinforcement of surrounding rock fiber slurry of roadway
QIAO WEIGUO (author) / SONG WEIJIE (author) / LIN DENGGE (author)
2015-04-29
Patent
Electronic Resource
English
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