Composite waterproof isolation pad and drainage structure

Abstract

The invention discloses a composite waterproof isolation pad and a drainage structure. The composite waterproof isolation pad comprises a first permeable layer, a second permeable layer and a plasticisolation layer arranged between the first permeable layer and the second permeable layer in a supported manner. A waterproof air-permeable film is arranged on the side, away from the plastic isolation layer, of the second permeable layer, the first permeable layer and the second permeable layer are made of geofabric, and the plastic isolation layer is connected with the first permeable layer andthe second permeable layer through connecting parts. The composite waterproof isolation pad has the effects of water drainage, waterproofing and permeation preventing.

Description

technical field [0001] The invention relates to the technical field of building waterproof coiled materials, in particular to a composite waterproof isolation pad and a drainage structure. Background technique [0002] The existing composite drainage net / mat is composed of three-dimensional plastic net double-sided bonding water-permeable geotextile, which can replace the traditional sand and gravel layer, and is mainly used for drainage in fields such as landfills, roadbeds and inner walls of tunnels. [0003] The Chinese patent with the notification number CN206800095U discloses a composite drainage mat with coarse denier fiber hot-melt net core, the drainage mat includes the first non-woven three-dimensional fiber web layer, the first coarse denier fiber hot-melt three-dimensional net core layer, The second non-woven three-dimensional fiber web layer; the first non-woven three-dimensional fiber web layer, the first coarse denier fiber hot-melt three-dimensional net core l...

AI Technical Summary

Problems solved by technology

However, during the use of this coarse-denier fiber hot-melt mesh core composite drainage mat, water or accumulated water or rainwater will permeate through the drainage mat and reach the foundation below, and the water flow will cause water erosion on the foundation, which will easily cause the foundation to collapse.

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