This classification is exceedingly convenient to pre-estimate the medium short tunnel gushing in this area, which provided an effective guide for the design and construction of Tianchan 2 grade special purpose highway in Gansu province.

• 隧道涌水类型划分对该地区中短隧道涌水预测极为方便，为甘肃省天?f二级汽车专用公路设计与施工提供了有效指导。