Construction method of live branch frame type plane source retaining purified ecological revetment

Abstract

The invention relates to a construction method of a live branch frame type plane source retaining purified ecological revetment. The method comprises the following steps of: paving rock stones on an included angle position of a riverbank slope surface and a riverbed; bundling epicormic branches of willows, clethraceae and black poplars into live branch bunches; since the live branch bunches form a live branch frame, paving the live branch frame on the riverbank slope surface along the block stones, paving live branch layers and live branch frame layers in a staggered way layer by layer on the live branch frame layers; and paving filling in the top most layer of frame. The invention aims to solve the problems that a natural slope protection way has poor stability, hard slope protection causes adverse effects on the ecology, the environment and the landscape of a revetment, and the ecological slope protection landscape is excessively single and too high in cost. The revetment is completely constructed by natural materials, builds a fine riverbank biological habitat environment and ensures the stability of the revetment; in addition, beautiful natural landscapes are formed on a riverbank revetment, and a plant-gravel-microorganism system formed on the revetment has better retaining and purifying effects on pollutants entering into a river channel in a plane source way.

Description

technical field [0001] The invention relates to an ecological river bank revetment construction technology, in particular to an ecological bank revetment construction method in a living branch frame format area source interception and purification type applied to slope river bank slopes. Background technique [0002] Before the present invention, existing river bank revetment technology has natural type revetment, hard revetment and ecological type revetment. [0003] Natural slope protection uses plants with well-developed root systems and plants them on the slope of the river to protect the river bank, meet the needs of the ecological environment, and maintain the natural landscape effect. However, this natural slope protection method has the disadvantage of poor stability. It is easy to be washed by rainwater to form deep ditches and cause soil erosion. The interception and purification effect of pollutants is limited. [0004] The hard slope protection uses mortar or d...

AI Technical Summary

Problems solved by technology

These structures have good effects on maintaining bank slope stability, preventing soil erosion and ensuring flood control safety, but they also have adverse effects on the bank slope's ecology, environment and landscape to varying degrees: their hard materials and closed structures damage the river channel The land-water ecotone zone has caused the loss of coastal biological habitats, making it difficult for animals and plants to survive and reproduce here, seriously destroying biodiversity, causing a serious decline in the self-purification capacity of the river water body, making it difficult to remove pollutants entering the river in the form of non-point sources, and Its smooth and monotonous appearance seriously affects the landscape effect of the river channel

[0005] Ecological slope protection is currently the most commonly used bank revetment technology, such as the use of concrete planting frames, geotechnical material composite planting bases, barbed wire and crushed stone composite planting bases, geotechnical material soil-fixing planting bases, vegetation-type ecological concrete, cement ecological planting bases and soil curing agent to protect the river bank slope, which has a good effect on stabilizing the bank slope structure and improving the bank slope landscape to a certain extent, but the hard materials are still very abrupt, the landscape is too single, and the artificial traces are heavy. It is not ecologically harmonious enough, and has a very limited effect on the interception of river surface source pollution, and the cost of organic cementing materials is too high, and its promotion and use have been restricted.

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