Empty wall drainage waterproof tunnel

Abstract

The invention discloses a hollow-wall drainage waterproof tunnel. The hollow-wall drainage waterproof tunnel can be used for a highway, a railway, a city and river crossing tunnels. The hollow-wall drainage waterproof tunnel is inseparable from geotechnical engineering and relates to the field of civil construction. The problem of drainage and waterproofing in tunnels is mainly solved. A drainageditch pipe in tunnel surrounding rock is changed into empty wall space, so that water on the surrounding rock surface can flow freely, all the water is flow out of the tunnel automatically, and pressure water turns into non-pressure water. Thick, heavy, large, nailing, welding and hanging waterproof layers of the tunnel are changed to be thin, light, soft, layer paved bonded drainage waterproof layers. According to the technical scheme points, tunnel drainage is made into an empty wall, and inflow water can be directly received and be discharged anytime and anywhere. The empty wall is composedof an anchoring and shotcreting support, a concrete cushion block and a composite drainage waterproof layer. The anchoring and shotcreting support supports a dado of the wall and provides a flow water surface. The concrete cushion block is used for manufacturing empty walls and transferring pressure of surrounding rock. The composite drainage waterproof layer is the other wall of the empty wall and also constitutes a drainage layer function. The tunnel pavement and below drainage is discharged out of the tunnel through a side wall foundation ditch, a side outlet of a ventilation load-bearingwall and underground vertical and horizontal drainage ditches, and see the drawing 4 for details.

Description

technical field [0001] The empty wall drainage and waterproof tunnel of the present invention refers to that the water in the tunnel will be discharged from the hollow wall composed of surrounding rock, shotcrete for initial lining, load-bearing concrete pad, drainage water structure, secondary lining concrete, etc., and will not penetrate into the secondary lining. within. [0002] Tunnel drainage and waterproofing works are an important part of tunnels. Tunnel diseases are mainly caused by water, especially in tunnels in seasonally frozen areas. There are problems with drainage and waterproofing in winter, resulting in water damage and freezing disasters that often occur in winter and spring. , and eventually the tunnel was destroyed due to poor durability. [0003] Tunnel waterproofing is to prevent water from seeping out of the surrounding rock and flowing to the tunnel surface through the waterproof layer and the secondary lining of the tunnel. Tunnel drainage means tha...

AI Technical Summary

Problems solved by technology

[0018] 1. Empty wall drainage and waterproof tunnel mainly solves the drainage problem of the tunnel structure all the year round, and completely eliminates the non-drainage of frozen water in the tunnel, the non-drainage of unpressurized water, and the non-drainage of blocked water.

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