Construction method of light and shade multi-arch bias tunnel

The invention discloses a construction method of a light and shade multi-arch bias tunnel. The construction method comprises the following steps that a bias resisting device is arranged at the to-be-constructed position of an open cut tunnel section; the anti-bias device comprises an L-shaped retaining wall, a pressure-bearing pile and an anchoring pile; the L-shaped retaining wall comprises an anchoring plate, a lining retaining wall body and a lining retaining side wall, the anchoring plate comprises an anti-pulling section and a pressure-bearing section which are arranged in the unsymmetrical pressure direction of the mountain, the lining retaining wall body is vertically arranged on the pressure-bearing section, and the lining retaining side wall is arranged at the top end of the lining retaining wall body; the pressure-bearing piles are distributed on the bottom surfaces of the pressure-bearing sections; the anchor pulling piles are arranged on the bottom surfaces of the anti-pulling sections; constructi