Novel supporting construction in tunnel

The utility model discloses a novel supporting construction in tunnel, including hole, the back row hole of going ahead of the rest, midboard stand, in advance the hole with back row hole interconnect, the hole sets up in advance the left side in back row hole, the filler has been pour on the surface in the hole in advance, the hole inherence is close to the vertical midboard stand that is provided with in one side in back row hole in advance, the upper end of midboard stand and lower extreme all with the filler of pouring on the surface in hole supports and connects in advance. Being providedwith the bar diameter in the midboard stand for 8mm's 20cm double -layer reinforced net, more doing benefit to and strutting the waterproof layer construction in hole in advance, guaranteed that thestructure of midboard stand is firm, the midboard stand has the material to be ligneous stull, bracing to support it, and the structure of midboard stand is further firm. 本实用新型公开了种新型隧道的支护结构，包括先行洞、后行洞，中墙立柱，所述先行洞和所述后行洞相互连接，所述先行洞