Emergency parking strip tunnel smooth blasting construction excavation rack

The utility model relates to the field of tunnel blasting construction, in particular to an excavation rack for tunnel smooth blasting construction of an emergency parking strip. Comprising a supporting main framework, a side wing telescopic operation platform, an air-water drill junction station and supporting facilities. Construction site materials are adopted for welding forming, local materials are used, and installation and transformation are convenient; the side wing telescopic rods are arranged in the belly waist of the I-shaped steel, so that space is saved; the rack uses two I-shaped steel belly waists as air pipe channels, materials are utilized to the maximum extent, and the I-shaped steel serves as a balance weight body, so that the overall stability of the excavation rack is guaranteed; the air and water pipe junction station is attached to the excavation rack, so that air and water supply drilling is more convenient; a booster pump and a small ball valve are reasonably additionally arranged, so