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Alpine grassland mining area rock slope regreening matrix and preparation method thereof

A technology for rock slope and mining area, which is applied to the field of re-greening of rock slope in alpine grassland mining area and its preparation field, can solve the problems of increasing slope greening cost, loss of elements, environmental damage, etc., and achieves high practical value and application. Prospect, easy operation, simple process effect

Pending Publication Date: 2021-12-03
扎赉诺尔煤业有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A variety of treatment methods have been adopted for the rocky slope, but due to the constraints of technical means and climatic conditions, the engineering effect is not ideal
At present, the commonly used slope restoration technology is to continue to excavate a large amount of soil, which will bring new environmental damage and increase the cost of slope greening. In addition, there are also direct sowing techniques such as hydraulic spraying technology and thick-layer substrate spraying technology. , but it can only prevent soil erosion on the slope at the initial stage of planting. With the increase of the application period, nitrogen, phosphorus, potassium and other elements in the substrate, iron, manganese, zinc, etc. The loss of trace elements is serious. At the same time, under the scouring effect of rainwater, the base material itself will be eroded to cause water and soil loss, which cannot achieve good greening and slope protection effects, and causes waste of base material raw materials. So how to effectively Improving the ecological conditions of rocky slopes in alpine grassland mining areas while reducing the cost of ecological restoration of mine slopes is a technical problem that needs to be solved urgently

Method used

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  • Alpine grassland mining area rock slope regreening matrix and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The regreen matrix of the rocky slope in the alpine grassland mining area is prepared from the following components by mass: 100 parts of mine waste land soil, 30 parts of decomposed organic waste (decomposed activated sludge), 10 parts of straw, 20 parts of slag, pulverized coal 20 parts of ash, 3 parts of binder, 2 parts of water-retaining agent (sodium polyacrylate water-absorbing resin), 3 parts of compound microbial fertilizer, 2 parts of pH regulator (superphosphate and acetic acid).

[0044] Mix the soil from mining wasteland, decomposed organic waste, straw, slag, and fly ash into a high-speed pulverizer to pulverize into particles. After sieving, the particle size is 0.10-0.15mm. Stir for 30 min at a rotation speed of 1000 r / min, and then stand for 2 h after stirring to form a stirred product. Then add water-retaining agent, binder, compound microbial fertilizer and pH regulator, stir and mix evenly to obtain rock slope regreening matrix.

Embodiment 2

[0046] The regreen matrix of the rocky slope in the alpine grassland mining area is prepared from the following components by mass: 100 parts of mine waste land soil, 30 parts of decomposed organic waste (decomposed cow and sheep manure), 5 parts of straw, 25 parts of slag, pulverized coal 15 parts of ash, 2 parts of binder, 1 part of water-retaining agent (sodium polyacrylate water-absorbing resin), 2 parts of compound microbial fertilizer, 2 parts of pH regulator (slaked lime and plant ash).

[0047] Mix the soil from mining wasteland, decomposed organic waste, straw, slag, and fly ash into a high-speed pulverizer to pulverize into particles. After sieving, the particle size is 0.10-0.15mm. Stir for 30 min at a rotation speed of 1000 r / min, and then stand for 2 h after stirring to form a stirred product. Then add water-retaining agent, binder, compound microbial fertilizer and pH regulator, stir and mix evenly to obtain rock slope regreening matrix.

Embodiment 3

[0049] The regreen matrix of the rocky slope in the alpine grassland mining area is prepared from the following components by mass: 100 parts of mine waste land soil, decomposed organic waste (the ratio of decomposed activated sludge to decomposed cow and sheep manure is 1:1) 30 parts, 8 parts of straw, 23 parts of slag, 18 parts of fly ash, 3 parts of binder, 2 parts of water-retaining agent (sodium polyacrylate water-absorbing resin), 3 parts of compound microbial fertilizer, pH regulator (superphosphate and acetic acid) 2 parts.

[0050] Mix the soil from mining wasteland, decomposed organic waste, straw, slag, and fly ash into a high-speed pulverizer to pulverize into particles. After sieving, the particle size is 0.10-0.15mm. Stir for 30 min at a rotation speed of 1000 r / min, and then stand for 2 h after stirring to form a stirred product. Then add water-retaining agent, binder, compound microbial fertilizer and pH regulator, stir and mix evenly to obtain rock slope regr...

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Abstract

The invention discloses an alpine grassland mining area rock slope regreening matrix and a preparation method thereof, and relates to the technical field of rock slope regreening. According to the alpine grassland mining area rock slope regreening matrix and the preparation method thereof, mining area waste land soil, decomposed organic waste, straw, a binder, a water-retaining agent, a composite microbial fertilizer, a slag, fly ash and a pH regulator are mixed into the regreening matrix, the matrix components are specifically blended by utilizing the synergistic effect of the components, the problems that rock slope soil is poor in adhesive capacity, poor in water-retaining property and low in organic matter content are effectively solved, the straw, the slag, the decomposed organic waste, the fly ash and the like are used as components of the regreening matrix, waste is utilized, energy is saved, environment friendliness is achieved, and the regreening matrix has high practical value and application prospects.

Description

technical field [0001] The invention relates to the technical field of regreening of rocky slopes, in particular to a rocky slope regreening matrix in an alpine grassland mining area and a preparation method thereof. Background technique [0002] Open-pit coal mines have caused varying degrees of damage to the mining area and its surrounding ecological environment and regional groundwater during the mining process, and most coal mines have not been effectively restored and reconstructed after the pits were closed. With the increasing requirements for ecological restoration of mine slopes, ecological restoration of rocky slopes in coal mining areas is an important part of environmental protection and ecological civilization construction, which is conducive to reducing hidden dangers of mine geological disasters and improving the quality of ecological environment in mining areas. After the alpine grassland coal mine is closed, the exposed rock slopes left by mining are difficu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/12A01G24/20A01G24/22A01G24/10A01G24/35A01G24/30
CPCA01G24/12A01G24/20A01G24/22A01G24/10A01G24/35A01G24/30
Inventor 焦扬朱雪强李秋实李昂郭磊孟庆俊
Owner 扎赉诺尔煤业有限责任公司
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