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Vegetation Restoration Substrate Suitable for Collapsible Soil Slope and Its Spraying Method

A soil slope and vegetation restoration technology, applied in the field of slope greening, can solve the problems of high cost of matrix components, poor soil stability, and resistance to rain erosion, and achieve reduced structural damage of the original soil layer, low water permeability coefficient, and reduced desertification Effect

Active Publication Date: 2020-04-28
青岛冠中生态股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a vegetation recovery matrix suitable for collapsible soil slopes and a spraying method thereof that can effectively reduce the destruction of the original soil layer structure caused by excessive infiltration of rainwater, and solves the problem of high cost of matrix components and poor soil stability in the prior art. The water-fixing effect is poor, the validity period is short, and the technical problems of not being able to resist rainwater erosion

Method used

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  • Vegetation Restoration Substrate Suitable for Collapsible Soil Slope and Its Spraying Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The substrate formula suitable for vegetation restoration on collapsible soil slopes is characterized in that the raw materials in the formula include loess, adhesive, organic matter, plant fiber, stabilizer, aggregate agent and inorganic fertilizer. The bottom substrate, sprayed with a thickness of 2 cm, consists of the following volumes of materials: loess 80, binder 10, plant fiber 8.8, stabilizer 1.2. The middle layer substrate, sprayed with a thickness of 5cm, consists of the following volume ratios: loess 38, organic matter 48, plant fiber 13.5, stabilizer 0.15, aggregate agent 0.1 and inorganic fertilizer 0.25; surface substrate, sprayed with a thickness of 2cm, consists of the following volumes Specific material composition: loess 28, organic matter 52, plant fiber 19.82, stabilizer 0.1 and aggregate agent 0.08.

Embodiment 2

[0026] The substrate formula suitable for vegetation restoration on collapsible soil slopes is characterized in that the raw materials in the formula include loess, organic matter, adhesive, plant fiber, stabilizer, aggregate agent and inorganic fertilizer. The substratum, sprayed with a thickness of 2 cm, consists of the following volumes of materials: loess 76, binder 8.2, plant fiber 15, stabilizer 0.8. The middle matrix, with a spraying thickness of 3cm, is composed of materials with the following volume ratios: loess 41, organic matter 46, plant fiber 12.41, stabilizer 0.17, aggregate agent 0.16, and inorganic fertilizer 0.26. The surface matrix, with a spraying thickness of 2cm, is composed of materials with the following volume ratios: loess 29.84, organic matter 54, plant fiber 16, stabilizer 0.11, and aggregate agent 0.05.

Embodiment 3

[0028] The substrate formula suitable for vegetation restoration on collapsible soil slopes is characterized in that the raw materials in the formula include loess, adhesive, organic matter, plant fiber, stabilizer, aggregate agent and inorganic fertilizer. The bottom substrate, sprayed with a thickness of 2cm, is composed of materials with the following volume ratios: loess 82, adhesive 7, plant fiber 9.8, and stabilizer 1.2. The middle matrix, with a spraying thickness of 3cm, consists of the following volumes of materials: loess 33, organic matter 50.6, plant fiber 16, stabilizer 0.1, aggregate agent 0.08, and inorganic fertilizer 0.22. The surface matrix, with a spraying thickness of 2cm, is composed of materials with the following volume ratios: loess 31, organic matter 46.78, plant fiber 22, stabilizer 0.13, and aggregate agent 0.09.

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Abstract

The invention provides a vegetation rehabilitation matrix suitable for a collapsible soil side slope and a hydro-seeding method thereof, and relates to the technical field of vegetation greening. Thematrix comprises a bottom layer matrix, a middle layer matrix and a surface layer matrix. The thickness of the bottom layer matrix is 2-3cm, and the bottom layer matrix comprises, by volume, 76-82 ofloess, 7-10 of adhesives, 9-15 of plant fibers, and 0.8-1.2 of a stabilizer. The thickness of the middle layer matrix is 1-5cm, and the middle layer matrix comprises, by volume, 33-41 of loess, 46-54of organic matter, 11-16 of plant fibers, 0.1-0.17 of a stabilizer, 0.08-0.16 of a granule agent, and 0.21-0.26 of inorganic fertilizer. The thickness of the surface layer matrix is 1-2cm, and the surface layer matrix comprises, by volume, 28-33 of loess, 46-54 of organic matter, 16-22 of plant fibers, 0.1-0.13 of a stabilizer, and 0.05-0.09 of a granule agent. According to the vegetation rehabilitation matrix suitable for the collapsible soil side slope and the hydro-seeding method thereof, a soil culture medium has the beneficial effects that the structural strength is high, the organic matter content is high, the ability to resist rainwater scouring is strong, and the requirement for vegetation growth is met.

Description

technical field [0001] The invention relates to the technical field of slope greening, in particular to a vegetation restoration matrix suitable for collapsible soil slopes and a spraying method thereof. Background technique [0002] Collapsible loess, mainly composed of silt and weakly hydrophilic minerals, has the special properties of uniform soil quality, loose structure, many pores, most of which are large pores, and low natural water content. Collapsible loess has low compressibility and high strength when dry, but after soaking, the connection of soil particles is significantly weakened, causing soil structure damage, large additional subsidence, and collapsible deformation. [0003] Collapsible loess is mainly distributed in areas with an average annual precipitation of 200-600 mm in China. This area has the characteristics of concentrated precipitation and evaporation much greater than precipitation. Collapsible soil is very harmful to human engineering activities....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20A01G24/46
CPCE02D17/202
Inventor 李春林范小妮祁传磊曹凤娟
Owner 青岛冠中生态股份有限公司
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