白龙山隧道涌水地段大坍方处理

Collapse treatment in water flush section of Bailongshan Tunnel

以白龙山隧道涌水地段大坍方为例,分析了涌水造成隧道坍方的原因,阐述了坍方的处理过程,经坍方处理,该段再未发现开裂、下沉等不良现象,证明此法处理坍方有效。

Taking the collapse in water flush section in Bailongshan Tunnel as example the reasons cased the tunnel collapse are analyzed; at the same time collapse treatment process is elaborated. Through treatment there are no undesirable phenomena occurring such as crack and settlement.