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Greening method of rocky slope in cold region

A rock and slope technology, applied in the field of ecological restoration, can solve the problems of difficult seed planting, poor slope greening effect, etc., and achieve the effects of low restoration cost, improved water retention, and overcoming easy landslides

Active Publication Date: 2019-08-16
NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a greening method for rocky slopes in cold regions, aiming to solve the technical problem in the prior art that it is difficult to plant seeds in the process of greening the slopes, resulting in poor greening effects of the slopes

Method used

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  • Greening method of rocky slope in cold region
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preparation example Construction

[0051] In some technical schemes, the preparation method of water retaining agent comprises:

[0052] Grinding the dried weathered coal to 300 mesh, adding sulfuric acid whose mass is 20%-60% of the pulverized weathered coal and whose concentration is 60-70% to react for 3-5 hours to obtain a flocculent reactant, and then add the flocculent reactant adding humus whose mass is 20-40% of the flocculent reactant, stirring and mixing to obtain the first mixed polymer;

[0053] Use ethyl acetate and / or xylene as a solvent, and add crushed plastic and / or foam to it, dissolve for 24-26 hours, then add starch with a mass of 20-25% of the crushed plastic and / or foam , shearing and emulsifying for 2-3 hours at a rotating speed of 3-35,000 r / min to obtain the second mixed polymer;

[0054] Mix the first mixed polymer and the second mixed polymer with a mass ratio of 1: (0.7-0.9) and then disperse and stir for 2-5 minutes under the condition of 2-25,000 r / min, and then in 1- Dispersing ...

Embodiment 1

[0066] Embodiment 1 water retaining agent and preparation method thereof

[0067] Grinding the dried weathered coal to 300 mesh, adding sulfuric acid with a mass of 20% of the pulverized weathered coal and a concentration of 60 for 3 hours to obtain a flocculent reactant, and then adding a mass of flocculent reactant to the flocculent reactant 20% of the humic substance is stirred and mixed to obtain the first mixed polymer;

[0068] Using ethyl acetate as a solvent, add crushed plastic to it, dissolve it for 24 hours, add starch with a mass of 25% of the crushed plastic, shear and emulsify at a speed of 30,000 r / min for 2 hours, and obtain No. Dimixture;

[0069] Mix the first mixed polymer and the second mixed polymer at a mass ratio of 10:7, then disperse and stir at 20,000 r / min for 2 minutes, and then disperse and stir at 10,000 r / min 6 minutes, obtain the 3rd mixed polymer;

[0070] Mix the third mixed polymer and the inorganic salt mixture at a mass ratio of 5:1 and ...

Embodiment 4

[0093] The preparation method of embodiment 4 pellets

[0094] Mix lignin fiber, diatomaceous earth and peat soil according to the weight ratio of 1:80:40;

[0095] Add polyacrylamide twice the mass of lignin fiber to the mixture, add water at 80°C and stir until it becomes a slurry, place the slurry at a temperature of 120°C for 1 hour, and then pulverize it.

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Abstract

The invention provides a greening method of a rocky slope in the cold region, and belongs to the field of ecological restoration. The method comprises steps as follows: after the to-be-greened rocky slope is subjected to leveling treatment, slope, vegetation cover amount, rock porosity and saturated water content of the to-be-greened rocky slope are measured; borrowed soil filling base of the to-be-greened rocky slope is obtained with the slope, vegetation cover amount, rock porosity and saturated water content serving as parameters; anchor rods are arranged on the rocky slope after leveling treatment, geonets are fixed on the anchor rods, and then a vegetative substrate is applied to the surfaces of the geonets by filling according to the borrowed soil filling base; the treated rocky slope is irrigated with water volume of 10-40 kg / m<2> for 2-3 months every 10-15 days. The greening method is suitable for local conditions, the whole restoration process is more accurate, and the germination rate and the survival rate of grass seeds are increased by improving clustering characteristics, water-retaining property and air permeability of the added substrate.

Description

technical field [0001] The invention relates to the field of ecological restoration, in particular to a method for greening rock slopes in cold regions. Background technique [0002] Slope is one of the important environments for human survival, and it is also an important part of engineering construction. In the process of engineering construction, human beings will inevitably transform the surface of the lithosphere. Among them, some large-scale engineering activities of human beings, such as: open-pit mining, road construction, hydropower construction, etc. , Often a large amount of excavation will be carried out on the rock mass, and some temporary or permanent rock engineering slopes will be formed. [0003] In recent years, with the continuous promotion and implementation of engineering construction, a large number of rock slopes have been formed in my country, especially in some alpine regions, the formation speed of rock slopes is gradually increasing; thus, the gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00A01C1/06A01B79/02A01G24/15A01G24/28A01G24/25A01G24/20A01G24/00C09K17/14C09K103/00
CPCA01B79/02A01C1/06C09K17/14C09K2103/00
Inventor 冯起刘蔚郭瑞贾冰李宝峰席海洋张成琦
Owner NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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