Water diversion type water-stop belt

Abstract

The invention provides a water diversion type water-stop belt. The water diversion type water-stop belt mainly comprises a water-stop belt body and a geotextile fabric filtering layer, wherein the water-stop belt body is provided with a water diversion tank and fixing wings; the geotextile fabric filtering layer is located on the upstream face of the water-stop belt and above the water diversion tank, and used for filtering out gravel and making water permeate into the water diversion tank; and the water diversion tank is used for draining accumulated water on the water-stop belt in a guiding mode so that the water-stop belt can have the tensile capacity and the shear capacity. The belt body of the water diversion type water-stop belt is made of a material with high strength and seawater corrosion resistance. The fixing wings are located on the two sides of the water-stop belt body and used for being connected with a concrete lining body in firm and sealed modes. Through combination of the geotextile fabric filtering layer with the water diversion tank, a safer drainage system is formed, accumulated water on the water-stop belt can be effectively gathered in the water diversion tank to be drained in a centralized mode, the interference of the structure on the water-stop belt is avoided, and water is drained out of a tunnel in time. Geotextile fabric and the water-stop belt body are bonded through engineering glue. According to the water diversion type water-stop belt, the novel seawater corrosion resistant material is developed specific to the coastal region environment as well as rubber corrosive substances in the seawater, and the service life of tunnels in the coastal regions is prolonged.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a water-guiding waterstop. Background technique [0002] Back-adhesive waterstop is one of the commonly used materials for concrete joints in tunnel construction. It is installed on the periphery of the second lining of the tunnel and covered on the deformation joints. It can adapt to the small displacement and deformation of the deformation joints without losing the water-stop function. At present, the reasons for the failure of the back-adhesive waterstop are that the connection between the waterstop and the concrete is not strong, and the deformation joints of the tunnel will shift due to settlement and other reasons. Sometimes the waterstop will be stretched for a long time. If the waterstop is too long, the waterstop is easy to separate from the concrete; the second is that the water pressure in contact with the waterstop is too high, and the periphery of the sec...

AI Technical Summary

Problems solved by technology

At present, the reasons for the failure of the back-adhesive waterstop are that the connection between the waterstop and the concrete is not strong, and the deformation joints of the tunnel will shift due to settlement and other reasons. Sometimes the waterstop will be stretched for a long time. If the waterstop is too long, the waterstop is easy to separate from the concrete; the second is that the water pressure in contact with the waterstop is too high, and the periphery of the second lining of the tunnel is a closed environment, which can easily cause water accumulation. The increase will cause the waterstop to lose the effect of waterstop

[0003] At present, most of the back-adhesive waterstops in the prior art do not have the function of water guiding and sand filtering. If the waterstop is used for a long time, the sand above the waterstop will gradually accumulate, so that the water can be removed The speed will slow down, and slowly water will form, affecting the health of the tunnel

[0004] In coastal areas, where water resources are relatively abundant and the geology is relatively soft, it is inevitable that sand and stones will fall off above the tunnel. Because there is no water guide groove in the ordinary water stop, the water above the water stop can only be drained from the surface of the water stop. Over time, the amount of sand and stones will gradually increase. The increase of sand and stones will block the flow path of the accumulated water and slow down the drainage speed of the accumulated water. Under such circumstances, the accumulated water will gradually increase. Cause damage to the waterproofing system of the tunnel, causing safety hazards

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