Built-up arch supporting device in tunnel

The utility model relates to a built-up arch supporting device in tunnel, strut mechanism, concrete layer and anchor at concrete layer outlying metal mesh layer including the anchor beam, the inboard at concrete layer's top is strutted the mechanism through the anchor beam and is installed the roof, and this anchor beam is strutted the mechanism and is included curved anchor beam main part, is gone up stock and U type checkpost, the both ends of anchor beam main part weld a baffle respectively, have along the radial setting of anchor beam main part several to the anchor eye, every a pair of stock of going up that passes to all corresponding in the anchor eye, a pair of stock of going up corresponds a U type checkpost, the both sides of U type checkpost be provided with a through-hole respectively, last stock pass and install the bolt behind the through-hole of anchor eye and U type checkpost. Effectively contain especially roof fall accident's the emergence of roof accident, guaranteed tunnel roof safety.