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《Proceedings of the International Young Scholars' Symposium on Rock Mechanics》 2008年
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Study on the key techniques of tunneling across underground river in Karst areas

【摘要】:正In karst areas,tunneling across the underground rivers may cause a big disaster,such as sudden water or mud in rush,or even stone in-rush and other unpredictable geological hazards,resulting in damage to machine and fatality.In order to avoid the hazards,the key problems are analyzed and the specific techniques are studied in this paper.The Qiyueshan highway tunnel crossing the exporting underground river is analyzed in detail,including the position forecasting of underground river,construction program,supporting measures and monitoring of the deformation of surrounding rocks.The potential geological hazards are controlled effectively on time.All those guarantee the tunnel cross the underground river with safety and success.

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