A kind of ecological restoration method of damaged mountain slope

Abstract

The invention relates to an ecological remediation method for a slope of a broken mountain. Ecological remediation can be conducted on a steep cliff wall slope of which the slope surface is smooth andlevel by constructing a slope remediation structure composed of a large-pore vegetation concrete layer, a substrate material layer and a small-pore vegetation concrete layer. The surface roughness ofthe slope sprayed with the large-pore vegetation concrete layer is significantly increased, a substrate material which is subsequently sprayed can not be prone to sliding down, small-pore vegetationconcrete is sprayed to the outer layer of the substrate material, therefore, through the double-layer vegetation concrete structure, it can be better guaranteed that the substrate material is attachedto the slope, and sliding and rain water scouring are avoided. In addition, the large-pore structure of the large-pore vegetation concrete layer is more beneficial for growth of a plant root system,the small-pore vegetation concrete layer can purify non-point source pollution, rotten ecological desilting sludge is added into the substrate material, and the vegetation degradation problem caused by insufficient fertility is solved.

Description

technical field [0001] The invention relates to the field of slope ecological protection, in particular to a slope ecological restoration method for damaged mountains. Background technique [0002] Human beings have been digging mountains and quarrying stones for a long time without order, and large areas of natural vegetation have been destroyed. The mountain has been damaged to form a bare slope. mountain. The acceleration of urban construction has led to a great increase in the demand for building stones. Many mountains with beautiful surroundings have become quarries during urban construction. As a result, a large number of original mountains have been severely damaged, causing such things as soil erosion and landslides. A series of natural disasters such as landslides and mudslides have seriously threatened the survival and development of human beings, and have become a common problem facing the world today. The ecological restoration of damaged mountains can help imp...

AI Technical Summary

Problems solved by technology

[0004] Although the hanging net spraying technology has been well applied in engineering practice in the past ten years, many problems have appeared in specific applications, for example: ① For rocky slopes that are too steep or relatively flat, It is difficult for the sprayed substrate to attach firmly to the slope, causing the substrate to fall off or be lost; ②The rainy season in the southern region is long, and the rainwater severely scours the sprayed substrate, which further aggravates soil erosion and non-point source pollution; ③Slope adhesion The supply of substrate fertility is not long-lasting, and the vegetation is easy to degrade, which is not conducive to the stable growth of vegetation and the succession of vegetation communities; ④ Due to the unevenness of the slope surface, it is difficult for the mesh to fit well with the slope surface, which affects the growth of slope plants in the later stage

[0005] At present, researchers have also made many improvements to the hanging net spraying technology, such as: Notification No. CN105178337B A slope ecological protection method for the combination of planting trough and hanging net spraying, which uses the combination of planting trough and hanging net spraying For the ecological protection of the slope, it improves the fit between the mesh and the slope, and increases the stability of the slope. The impact of wind and rainwater may cause the sliding and falling off of the vegetation groove, and there is a greater potential safety hazard after the construction is completed; another example is the notification number CN105113518B, which is a slope ecological protection base material construction method with grooves on the slope surface. Drilling holes on the side slope to fix anchor rods and hanging nets will cause damage to the concrete protective layer. Therefore, this invention chooses to excavate pits, place preset concrete grids in the pits and plant plants in the grids. Although this method does not require Drilling operations, but excavating pits will further increase the damage to the mountain, and it is not conducive to the stability of the mountain slope, and there are potential safety hazards

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