The invention relates to the technical field of
tunnel construction, in particular to a gravel soil accumulation body shallow-buried tunnel hole entering construction method and a supporting structure, and the construction method comprises the steps that an arch frame is installed, specifically, survey
lofting, hole digging, foundation formwork erecting and pouring and steel arch frame erecting are included; advance support construction comprises the steps of surveying and
lofting, advance small guide
pipe manufacturing, drilling, advance small guide
pipe installation and grouting, when advance small guide pipes are installed, the advance small guide pipes are arranged at equal intervals along the two sides of the
middle line of the tunnel and numbered, the advance small guide pipes of odd numbers are small in external
insertion angle, and the advance small guide pipes of even numbers are large in external
insertion angle; and lagging jack guniting is conducted, specifically, a
steel bar net rack is arranged on the periphery of the steel lagging jack, guniting concrete is hung, and after the work is completed, concrete is sprayed to the inner wall of the steel lagging jack. A brim structure without a large
pipe shed is adopted, and on the basis that zero-excavation hole entering is achieved, the
equipment requirement is low, flexibility is high, and the construction speed is high.