Water draining method for tunnel construction process of penetrating through water-rich fracture zone

The invention relates to the field of tunnel excavating, in particular to a water draining method for the tunnel construction process of penetrating through a water-rich fracture zone. A water guiding structure is arranged on an interval rock wall of a small-distance tunnel to drain water burst on a tunnel face of the water burst tunnel to the other tunnel, and the water discharging flow of the water burst tunnel is increased. According to the water draining method for the tunnel construction process of penetrating through the water-rich fracture zone, based on the surrounding rock seepage field theory, the safety distance of the left tunnel and the right tunnel is kept when the small-distance tunnel is excavated, a non-water-burst tunnel is adopted as a diversion tunnel to replace the water draining mode of arranging an independent diversion tunnel, the problem that the independent diversion tunnel needs to be arranged in tunnel construction in the situation that the water burst amount ...