Introduction of river revetment project?

What is a river revetment project? What is the basic situation of the structure in the construction of river revetment project? The following are the basic contents of river slope protection:

Based on the knowledge of architectural knowledge column of this website, Zhong Da consulted and sorted out the basic situation of river slope protection as follows:

River revetment engineering is an engineering measure to protect the river bank from the influence of water flow and wind waves. According to the types of structural materials, there are mainly stone slope protection, willow slope protection, gabion slope protection, underwater slope protection, extra engineering slope protection, concrete block slope protection, geotextile slope protection, permeable pile slope protection and turf slope protection.

According to the related contents, the structures commonly used in river revetment construction are as follows:

Natural material slope protection

(1) Features and advantages. Natural vegetation slope protection mainly uses plants with developed roots for turf slope protection and soil bioengineering. On the one hand, this revetment method can effectively control the soil erosion along the river bank, reduce the erosion of the slope by rainwater and surface runoff, strengthen the soil, and play the role of soil consolidation and sand conservation. At the same time, vegetation can well purify the surface pollutants entering the river, thus purifying water quality and reducing water pollution. On the other hand, natural vegetation can be used for landscape construction, ecological environment restoration and avoiding secondary environmental pollution. In natural material slope protection, the selection and rational utilization of plants is the key. The plants we often use include shrubs, trees, grass and some aquatic plants. The specific choice of one or several plants should be based on the efficacy of plants and the needs of river regulation, as well as the local climate, soil and other conditions. For example, the roots of trees are relatively developed, and going deep into the soil layer can reinforce the soil well.

(2) shortcomings. (1) Because the growth of natural vegetation needs a process, in the initial stage of slope protection, the effect of vegetation on soil consolidation and slope protection is not obvious, and its force is relatively weak. It takes a long time to effectively prevent soil erosion and consolidate soil and sand. (2) Vegetation slope protection is not suitable for rivers with high flood control requirements, that is to say, when the flood velocity exceeds 3m/s, it is not suitable for planting grass on the shore and some important flood control sites. (3) In some rivers that need deep landslide treatment, the effect of vegetation slope protection is limited, which is due to the limited action range of natural vegetation roots.

Artificial material composite vegetation slope protection

It mainly includes civil net composite vegetation, green ecological bag, geotextile cushion soil-fixing planting base, grid reverse filtration biological slope protection and other technologies. This kind of ecological revetment is relatively erosion-resistant, which not only maintains the anchoring function of vegetation, but also makes up for the deficiency of vegetation through some artificial techniques, and is more suitable for river slopes with less erosion. For example, when the grid is used for soil consolidation and slope protection, it can realize the organic exchange of water and soil and has the function of ecological restoration. At the same time, the retaining wall and slope protection formed by cage technology have good water permeability, which can reduce the water level and groundwater pressure.

porous structure

Concrete hollow blocks and ecological bricks are mainly used to form a porous revetment structure, which is more suitable for urban ecological landscape rivers with less sediment concentration. This revetment technology can provide stable and continuous nutrient transport for vegetation, and pores can also play the role of adsorption and filtration, effectively purify water quality and degrade pollutants in water, which can meet the requirements of landscape revetment and ecological revetment at the same time.

Cage structure

Usually refers to the gabion structure, generally using some materials that can effectively prevent corrosion, such as steel wire, and gravel to form the planting base. In other words, a form of ecological revetment is formed by natural stones in wooden, iron or concrete cages. This technology has the advantages of convenient and fast construction, high comprehensive economic benefit, good integrity, good wave prevention and erosion resistance.

For more information about bid writing and improving the winning rate, click on the bottom customer service for free consultation.