Study on Catastrophe Information Characteristics of Water Inrush in Karst Tunnel by Drilling and Blasting Method

Figure 8

Evolution characteristics of seepage pressure under different joint inclination angles.(a) t = 1 s, θ = 0°. (b) t = 1 s, θ = 15°. (c) t = 1 s, θ = 30°. (d) t = 3 s, θ = 0°. (e) t = 3 s, θ = 15°. (f) t = 3 s, θ = 30°. (g) t = 5 s, θ = 0°. (h) t = 5 s, θ = 15°. (i) t = 5 s, θ = 30°. (j) t = 7 s, θ = 0°. (k) t = 7 s, θ = 15°. (l) t = 7 s, θ = 30°.

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