Renault pads are used for river regulation, improving the water quality of the river. At the same time, without increasing the project cost, the river can not only meet the water supply requirements, but also achieve the effect of environmental protection.

The principle of Renault pads is as follows:

1. Technical principle: Renault pad refers to a flat box structure, which has the characteristics of flexibility, water permeability and integrity. Using specially treated environmentally friendly steel wire, it is made of hexagonal twisted steel wire mesh woven continuously by machine, and filled with stones of certain specifications at the construction site. It is often used in anti-erosion projects such as bank slope protection and river bottom protection in water conservancy projects.

2. Technical parameters: Renault pads are composed of end panels, side panels and cover panels. The mesh size is 6cm*8cm, the diameter of the mesh surface is 2.2-3.2mm, and the diameter of the stranded steel wire is 2.0-3.0mm. There are several forms of steel wire surface for the production of Renault pads. Compared with ordinary hot-dip galvanized treatment, the alloy coating in Renault pad products can increase the durability by 3-4 times.

3. Steel wire standard: The low-carbon steel wire used in Renault pads has undergone high-tech anti-corrosion treatment. The tensile strength, elongation, coating weight and adhesion of the steel wire all meet the relevant national standards.

1) Tensile strength. According to national standards, the tolerance of Renault pad steel wire with a tensile strength of 350-500N is in line with international standards.

2) elongation. According to national standards, the elongation should not be lower than 10%.

3) Coating weight. According to national standards, the number of layers is shown in the table below.

4) The coating has strong adhesion. According to the national standard, the adhesion of the coating should meet the following requirements: After the steel wire is wound with 4 times the diameter of the steel wire for 6 weeks, rub the steel wire with your fingers, and the steel wire will not peel off or break.

Before water conservancy projects, block stones or prefabricated concrete blocks were mostly used to form city walls. Although this method solves the slope stability problem of the river scoured by the river, it ignores the ecological function of the river and destroys the growth conditions of the vegetation. Now the country advocates the concept of ecological environmental protection, a new material came into being, which is Renault pad.

Renault pad is a structural type that can not only ensure slope stability, but also maintain and restore river ecology. Its application in water conservancy construction projects is a new treatment method obtained through continuous research and trial and error. A water conservancy construction project is an environment that can prevent rivers from being scoured by river water and stabilize dikes and rivers without damaging vegetation. This construction method is to fill stones in the mesh cage of the Reynolds pad, and then make the Reynolds pad into a retaining wall instead of a retaining wall made of stones or prefabricated concrete blocks.

The Renault pad has a special structure, which realizes the natural convection and exchange function between the water body and the soil below the slope, and achieves ecological balance. Slope greening can increase the effect of landscape greening.

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