Trial by water

The poor working environment has made some workers quit every month, but most workers still stick to the "hot" position. On a cold winter day, taking a cold shower in a crude shower room in the tunnel has become their most pleasant moment of the day.

Accompanied by the thunderous rumbling and vibration of the tunnel borers, the tunnel advances day by day, but what remains unchanged is that when the workers safely end their day's work by taking 20-minute tunnel car and a 30-minute bus ride, the whole crew cheers.