Construction Technology of Tunnel Consolidation Excavation in Water-rich Soft and Broken Rock Formations

PENG Jian jun

Article ID: 2612
Vol 4, Issue 1, 2024
VIEWS - 45 (Abstract)


Combined with the example of the Junchang Tunnel of Censhui Expressway in the middle and Guangxi section of Baomao Expressway, this paper briefly introduces the four major mud and water inrush disasters that occurred, and expounds the causes of the disasters. Consolidation excavation of the tunnel has made a summary of construction technology.


Junchang tunnel; Water-rich weak broken rock formation; Curtain grouting; Consolidation excavation.

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