A road slope reinforcement treatment method based on plant stem and root grouting

A treatment method and plant stem technology, applied in the field of road slope reinforcement, can solve problems such as soil pollution, troublesome slope care, and inability to continue to reinforce the soil, etc., achieve low survival rate, enhance net bag wrapping effect, and benefit water and soil conservation and The effect of restoration of the natural environment

Active Publication Date: 2019-05-10
HUBEI UNIV OF TECH
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  • 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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  • A road slope reinforcement treatment method based on plant stem and root grouting

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The soil used for the test was taken from the ordinary fill soil of the embankment slope, and ryegrass with well-developed root system and strong growth ability was selected as the plant for the slope test. In the test, a slanted wooden box with a length of 2.0m, a width of 1.0m and a thickness of 0.2m was used to simulate the artificial slope. Experimental Design Slope 1: 0.75, 1: 1.00, 1: 1.25 The vegetation coverage rate is 80% (when the coverage rate is above 80%, it can withstand the erosion of heavy rain) 3 groups of experiments, numbered 1, 2, 3 respectively, and at the same time The comparative experiments of grouting on the root system are numbered 4, 5, and 6, and there are 6 groups of experiments in total.

[0043] At the same time, the 6 groups of experiments were sown under the same conditions, watered and fertilized until they matured, and then allowed to wither. Cut off the upper branches and leave about 5cm to 10cm of stems, and adjust the density to 1....

Embodiment 2

[0046] figure 1 It is a schematic diagram of plant root system grouting in the present invention.

[0047] The specific implementation is as follows:

[0048] The reinforcement principle of the present invention is to inject the grouting liquid into the stem and root system of the grass plant, so that the plant root system and the soil are combined with the grouting liquid to form a three-dimensional network reinforced structure. The reinforcement effect of the grout combined with the root system on the one hand shows that the cohesion of the soil layer is increased, and on the other hand, it shows that the net bag wrapping effect on the soil particles is enhanced; the increase of the cohesion prevents the slope surface to a certain extent The shear force damage of water flow and the formation of tension cracks in the surface soil layer; the net pocket effect weakens the dissociation effect of water flow on soil particles. At the same time, the grouting fluid increases the u...

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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 plant stem and root system grouting, which 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] Slopes are an important part of roads. In actual engineering, natural slopes are often weak and loose and prone to shallow landslides, so slopes need to be reinforced. Compared with trees and shrubs to strengthen slopes with grasses, grasses grow faster and can form longer root systems in a short time to reinforce shallow soil. On the other hand, trees and shrubs have a long growth cycle, the short-term reinforcement effect is not significant, the planting is relatively complicated, the cost of cult...

Claims

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Application Information

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Patent Type & Authority Patents(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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