Organic fiber composite repairing method for high-steep slope high-strength structure

Abstract

The invention relates to an organic fiber composite restoration method for a high-steep slope high-strength structure, and belongs to the technical field of mine ecological restoration, slope greeningand riverway water and soil conservation. According to the organic fiber composite repairing method for the high-steep slope high-strength structure, a special environment-friendly soilless fiber covering material is adopted as a carrier of mixed seeds, organic fertilizer (long-acting slow-release fertilizer) and other nutrient matrixes, and a plurality of vegetation matrixes are sprayed to the high-steep slope hung with a net through special equipment to be maintained. The construction technological process is clear in gradation, the slope surface structure of the repaired high-steep slope is stable, the ecological restoration effect is achieved, and the effect of stabilizing the slope is achieved. The fiber vegetation blanket on the last layer can achieve the effects of scouring prevention and water and soil conservation, and can also provide a landing and growing hotbed for natural propagation of surrounding wild species; and after the fiber vegetation blanket is degraded, the local species completely grow and plant roots, management and protection are basically not needed, and therefore natural restoration of the high-steep slope is achieved.

Description

technical field [0001] The invention relates to a high-strength structure organic fiber composite restoration method for high and steep slopes, and belongs to the technical fields of mine ecological restoration, slope greening, and river channel water and soil conservation. Background technique [0002] In mining and excavation construction of roads, bridges, dams, tunnels, etc., the high and steep rock exposed surface formed has no soil matrix. With the existing grid and spraying technology, it is difficult to plant the matrix on the rock slope, and the matrix Thin layer, unstable, low survival rate, poor effect, or large amount of engineering, difficult construction, high cost, in order to achieve the effect of short-term greening and acceptance, the biodiversity is mainly alien species, which need long-term maintenance management, survival The treatment rate is low, the treatment effect lasts for a period of time, there are certain safety hazards, and it is impossible to ...

AI Technical Summary

Problems solved by technology

[0002] In mining and excavation construction of roads, bridges, dams, tunnels, etc., the high and steep rock exposed surface formed has no soil matrix. With the existing grid and spraying technology, it is difficult to plant the matrix on the rock slope, and the matrix Thin layer, unstable, low survival rate, poor effect, or large amount of engineering, difficult construction, high cost, in order to achieve the effect of short-term greening and acceptance, the biodiversity is mainly alien species, which need long-term maintenance management, survival The treatment rate is low, the treatment effect lasts for a period of time, there are certain safety hazards, and it is impossible to realize the transformation from artificial restoration to natural restoration

[0003] In the prior art, the method of direct spraying is the first method, and its disadvantages are that the substrate layer soil for spraying is less, the substrate layer is thin, the water retention is poor, the substrate is easy to slip, the survival rate is low, and the cost of management and maintenance in the later stage is high

The second is to use non-woven ecological bags or straw bales, which are fixed on the wire mesh with iron wire or plastic locks. The disadvantage is that the seeds in the ecological bags are not easy to germinate. Straw bales are subject to weathering and erosion for a long time, and are easy to rot and degrade, resulting in no support for the sprayed substrate. Under the action of strong wind and heavy rain, the entire sprayed substrate collapses or falls off, and requires re-investment in treatment and repair

The third is to build retaining walls, pile up a large amount of soil slopes, and plant greening on the soil slopes. The disadvantage is that the base of the slope body needs to have a large enough site area, and the land occupation is large. For super high slopes, the engineering amount Huge, large investment, difficult to implement

Fourth, the method of fixing geogrids or large grid grooves to the slope or excavating steps is mainly reflected in the difficulty of construction and high cost. The parts of the grids and grid grooves and the facade of the steps cannot be covered with soil and green, which affects the appearance

Images