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Road slope strengthening treatment method based on plant stem and root system grouting

A processing method and plant stem technology are applied in the field of road slope reinforcement, which can solve the problems of soil pollution, unable to continue to reinforce soil, troublesome slope care, etc., achieve low survival rate, facilitate soil and water conservation and restoration of natural environment, Enhance the effect of the wrapping effect of the net pocket

Active Publication Date: 2017-08-08
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method has obvious economic advantages and important engineering value. Compared with the traditional slope protection method, the organic grout made by injecting epoxy resin into the plant roots is beneficial to water and soil conservation and the restoration of the natural environment, especially for annuals. Herbaceous plants, after the plants dry up and die, their roots rot and cannot continue to strengthen the soil, while concrete will cause pollution to the soil and cause some trouble to the later care of the slope

Method used

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  • Road slope strengthening treatment method based on plant stem and root system grouting

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The test soil was taken from the ordinary fill of the embankment slope, and ryegrass with developed root system and strong growth ability was selected as the plant for the slope test. The test uses obliquely supported wooden boxes with a length of 2.0m, a width of 1.0m and a thickness of 0.2m to simulate an artificial slope. The test design slope 1: 0.75, 1: 1.00, 1: 1.25 vegetation coverage rate of 80% (coverage rate of more than 80% can withstand the erosion of heavy rain) 3 sets of tests, numbered 1, 2, 3, and simultaneously Root grouting comparative experiments, numbered 4, 5, and 6, a total of 6 experiments.

[0043] At the same time, the 6 groups of experiments were sowed under the same conditions, watered and fertilized until they were mature, and then allowed to wither. Cut off the upper branches and reserve 5cm~10cm stems, and adjust the density to 1.5g / cm 3 Epoxy resin E-44 (6101) mixed with polyamide resin 650, the grouting liquid is fully mixed with the epoxy ...

Embodiment 2

[0046] figure 1 It is a schematic diagram of grouting plant roots according to the present invention.

[0047] The specific implementation is as follows:

[0048] The reinforcement principle of the present invention is to inject the grouting solution into the stem and root system of the grass plant, so that the plant root system and the soil are combined with the grouting solution to form a three-dimensional network reinforced structure. The reinforcement effect of the grouting solution combined with the root system is shown to increase the cohesion of the soil layer on the one hand, and on the other hand to enhance the net bag wrapping effect on the soil particles; the increase in cohesion prevents the slope to a certain extent The shearing force of water flow and the formation of cracks in the topsoil layer; the net bag effect weakens the dissociation effect of water flow on soil particles. At the same time, the grouting fluid increases the ultimate damage ability of the root s...

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Abstract

The invention belongs to the technical field of road slope strengthening, and relates to a road slope strengthening treatment method based on plant stem and root system grouting. The method comprises the following steps that firstly, gramineae plants with the developed root systems and the powerful growth capability are sown to a slope surface of a road slope; secondly, after the gramineae plants naturally wither, the branches at the upper portions of the gramineae plants are shorn away, and gramineae plant stems are reserved; thirdly, grouting liquid is prepared, the density of the grouting liquid ranges from 1.2 g / cm<3> to 2.0 g / cm<3>, and the grouting liquid is the mixture of epoxy resin and polyamide resin; fourthly, the grouting liquid is injected into the root systems of the gramineae plants through gramineae plant conduits of the gramineae plant stems; and fifthly, the unearthed position of the gramineae plant stems on the ground serves as the circle center, and the grouting liquid is injected in the circle with the radius ranging from 5 cm to 10 cm. The provided road slope strengthening treatment method based on plant stem and root system grouting is low in cost, green, environment-friendly, high in reliability, capable of facilitating curing, high in adhering force and good in mechanical performance.

Description

Technical field [0001] The invention belongs to the technical field of road slope reinforcement, and relates to a road slope reinforcement treatment method, in particular to a road slope reinforcement treatment method based on grouting of plant stems and roots. The method can not only anchor the road slope soil, but also It can prevent shallow landslides and is mainly suitable for the protection of road slopes or fragile sliding surfaces of mountains. Background technique [0002] Slope is an important part of the road. In actual projects, natural slopes are often weak and loose and are prone to shallow landslides, and the slopes need to be reinforced. Compared with the reinforcement of trees and shrubs, using grasses to reinforce slopes has a faster growth rate and can form longer root systems in a short time to reinforce shallow soils. However, the growth cycle of trees and shrubs is long, the short-term reinforcement effect is not significant, the planting is relatively compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D3/12C09K17/18C09K103/00
CPCC09K17/18C09K2103/00E02D3/12E02D17/20
Inventor 马强库准肖衡林刘永莉叶建军李丽华陶高梁陈智裴尧尧万娟谭燕
Owner HUBEI UNIV OF TECH
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