Identification and Treatment of Collapse and Mud Inrush Caused by Deep Karst Trough in Tunnels

<div>Diagram of collapse and mud inrush treatment: (a) cross-section diagram of disaster treatment; (b) longitudinal section diagram of advance small pipe grouting.</div>

Geofluids

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Figure 10

Figure 10: Identification and Treatment of Collapse and Mud Inrush Caused by Deep Karst Trough in Tunnels 