Mudstone ecological slope protection system and slope protection method

Abstract

The invention discloses a mudstone ecological slope protection system. The system is used for a river channel with the main channel flow rate being smaller than or equal to 4.0m / s. The system comprises a layer of rock blocks laid on the slope surface of the river channel at intervals, the unit weight of the rock blocks is larger than or equal to 40kg, gaps between the rock blocks are filled with clayed soil, herbaceous plants are planted on the clayed soil, and the soil content of the slope protection system is 40%-60%. The system has the advantages of being good in safety and stability and wide in application range. The structure with the rock blocks as a framework and plant root systems interwoven has high impact resistance stability, even if local vegetation or soil body impact damage occurs, large-area damage cannot occur, and the system is suitable for slope type bank slope protection with the designed flow rate being smaller than 4m / s. Water and air permeability is achieved, andthe ecological property is good. The soil and rock combined structure is good in water and air permeability, substance and energy exchange between water and banks cannot be blocked, a good biologicalhabitat environment can be constructed, and the ecological function requirement is met.

Description

technical field [0001] The application belongs to the field of water conservancy engineering, and in particular relates to a mud-stone ecological slope protection system and a slope protection method. Background technique [0002] Status quo of river ecological slope protection [0003] There are many rivers in our country, and the history of water control has a long history. Flood control and security have always been an important task for people's livelihood in all dynasties and generations. In order to ensure the safety of the embankment under the erosion of water flow, embankment protection is a necessary engineering measure. Since modern times, with the increasing pressure from population, resources and environment, and the improvement of technological capabilities, the solidification and hardening of river embankments has become a trend for a while. Subsequently, human beings' understanding of the environment and ecology has made significant progress, the constructio...

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Problems solved by technology

However, the wicker structure is arranged horizontally, and the wicker must be submerged under water for a long time before it rots. This structure of wicker does not reflect the slope-fixing function of plants.

[0004] Chinese patent application (2014101000028) discloses a construction method for gabion ecological gabion river channel slope protection: in the slope protection construction stage, after the gabion slope protection construction is completed, refill and water with soil in the gaps between the surface layer blocks, Ensure that the soil fills the gaps between the rocks, so that a layer of cultivated soil is covered on the rock slope protection; and with this layer of cultivated soil as the base bed, aquatic plants are planted under the water surface, and lawns are planted on the river bank to realize plant slope consolidation and ecological protection. Enhanced function; the technical key point of this patent is to play the role of gabions, and connect the blocks with gabions to form a structure with a higher anti-scouring flow rate, rather than the role of plants to stabilize the slope. At the same time, the structure is economical. Considering the high investment per linear meter, it is difficult to widely promote

However, the price of geotextile bags with anti-corrosion and anti-shock characteristics is relatively high. At present, raw materials are mainly imported, and the project cost is relatively high.

At the same time, the structure requires that the rocks in the lower layer of the bagged soil should be closely arranged and built by masonry. The porosity between the rocks is relatively small. Depends on bagged soil and plants

Chinese patent application (2019108737470) discloses an ecological remodeling method and ecological remodeling structure of urban hardened revetments. The structure is to cultivate plants on the built rock layer with soil, and does not organically mix the rock and soil , only a layer of plant protection is covered on the surface of the stone, and its anti-scour ability mainly depends on the anti-scour ability of the surface plants. If the anti-scour ability of the surface plants is exceeded, the upper soil layer will be washed away by the water flow, and the ecological layer will also be damaged.

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