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Fig. 2 | Geoenvironmental Disasters

Fig. 2

From: Plugging efficiency of pouring aggregates through multiple boreholes into an inundated tunnel to prevent groundwater inrush disasters

Fig. 2

Experimental setup of the aggregate pouring process into an inundated mine tunnel through multiple boreholes under flowing water conditions. 1-water supply with a constant head; 2-water flow rate adjusting device; 3-water meter; 4-funnel for aggregate pouring; 5-tunnel replica; 6-inclination adjuster; 7-water cycling device; 8-camera; 9-PC; 10-data logger; 11-water pressure sensor; 12-electronical balance

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