Protective sheds for anti-slip slopes at tunnel entrances

Abstract

The invention discloses a protective shed for a slide-prevention slope of a tunnel portal. The protective shed comprises a cublike bottom support, two ceilings installed at the top of the bottom support, and a damping device arranged between the ceilings and the bottom support. Supporting columns are vertically and fixedly arranged in the transverse middle of the bottom support. The two ceilings are arranged on the two sides of the supporting columns respectively. The transverse inner sides of the supporting columns and the ceilings are hinged to each other, so that the transverse outer sidesof the ceilings can swing up and down. The lower side of each single ceiling is provided with the damping device. The damping device is supported between the ceilings and the bottom support and is used for damping the swing movements of the ceilings. In this way, a hangar tunnel is ensured to resist a large impact force. Meanwhile, the construction cost of the hangar tunnel is effectively reduced.The construction period is shortened. The protective shed is easy to maintain and repair.

Description

technical field [0001] The invention relates to the field of slope treatment, in particular to a protective shed used for preventing landslides at tunnel entrances. Background technique [0002] Due to high mountains and steep slopes, vertical and horizontal ravines, poor geological conditions, and frequent occurrence of geological disasters, especially the rockfall and rockfall disasters caused by the collapse of dangerous rocks on the slopes of tunnel entrances are serious, posing serious challenges to traffic construction and transportation safety. In particular, the shallow surface of the tunnel entrance slope slides, and the road geological disasters such as rolling rocks and falling rocks on high and steep slopes are generally protected by setting up concrete sheds. Disadvantages: At the same time, the existing steel structure sheds at the entrance of railway tunnels have poor impact resistance, unreasonable structural systems, and low levels of industrialization. [...

AI Technical Summary

Problems solved by technology

In particular, the shallow surface of the tunnel entrance slope slides, and the road geological disasters such as rolling rocks and falling rocks on high and steep slopes are generally protected by setting up concrete sheds. At the same time, the existing steel structure sheds at the entrance of railway tunnels have poor impact resistance, unreasonable structural systems, and low levels of industrialization.

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