Jinzhai tunnel is one of the extra large PDL tunnels we construct in China.It has the features of big cross section, high standard, tense time schedule and hard stones and so on.

• 金寨隧道是我国大规模修建快速客运专线铁路遇到的特长隧道之一,具有断面大、标准高、工期紧和岩石坚硬等特点。