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对石林隧道开挖所揭露各类地层进行分析,探讨了沙泥岩互层隧道突水突泥的一般规律。将其隔、透水交替规律运用到该隧道相似岩性交替界面的地质预报中,取得了良好效果。为软岩隧道预报突泥突水提供了一个新思路。
The strata exposed by excavation of Shilin tunnel are analyzed, and the general rules of water inrush and mud in interbedded sand-shale tunnel are discussed. The interval and pervious to water alternately applied to the tunnel similar to the alternating lithological geological prediction, and achieved good results. It provides a new idea for prediction of muddy water bursting in soft rock tunnels.