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Geoenvironmental Disasters
Fig. 8 | Geoenvironmental Disasters

Fig. 8

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

Fig. 8

Aggregate accumulation mass in a Trial No. 6 (A = 0.5–1 mm, B = 0.75 m, C = 0, and D = 8°); b Trial No. 2 (A = 0.25–0.5 mm, B = 0.75 m, C = 1.5 × 10−2 m/s, and D = 3°); c Trial No. 10 (A = 1–2 mm, B = 0.75 m, C = 3 × 10−2 m/s, and D = 5°) and d Trial No. 14 (A = 2–5 mm, B = 0.75 m, C = 2.4 × 10−2 m/s, and D = 0°)

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