Ecological spray anchor slope protection structure and method

It is an ecological and slope technology, which is applied in the direction of infrastructure engineering, botanical equipment and methods, and excavation. It can solve the problems that it cannot be popularized and applied in a large area, the difficulty in obtaining materials such as urban sludge, and low construction efficiency. Good resistance, moderate strength and consistency, and the effect of improving construction efficiency

Active Publication Date: 2018-04-27
湖南中大园林环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, most of the existing technologies are manual pouring methods, the construction efficiency is low, and

Method used

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  • Ecological spray anchor slope protection structure and method
  • Ecological spray anchor slope protection structure and method
  • Ecological spray anchor slope protection structure and method

Examples

Experimental program
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Effect test

Embodiment 1

[0143] The embodiment of the present invention belongs to the protection of high and steep road slopes, the slope is about 75°, and the height is 20m. The construction is carried out by spraying (pumping) technology, including the following steps:

[0144] The first step is to level the slope, chisel out the protruding stones, and fill the sunken parts with soil to make the entire slope as smooth as possible.

[0145] The second step is to set up intercepting drainage ditches, and set intercepting drainage ditches at the top and foot of the slope to prevent excessive rainwater from scouring the slope. The drainage ditches can be built with concrete or mortar masonry, and the size of the drainage ditch is 500×300mm.

[0146] The third step is to drill and arrange anchor rods. The anchor rods use grade II steel bars with a diameter of 22mm and a spacing of 3m. They are arranged in a plum blossom shape, and the length of the anchor rods is 6m. The end of the anchor rod is sealed ...

Embodiment 2

[0183] The embodiment of the invention belongs to road slope protection, with a slope of about 60° and a height of 20m.

[0184] Compared with embodiment 1, the difference only lies in the following points:

[0185] The first point: the fifth step is to spray the root system through the pores. The cementing material of the concrete consists of 90 parts of cement, 5 parts of silica fume, 2 parts of fly ash, 5 parts of sand, 0.8 parts of pumping agent, 0.2 parts of slump retaining agent, and water reducing agent. 0.4 parts of agent, water-cement ratio of 0.35, the target porosity of the root penetration pore concrete is determined to be 28%, and the weight ratio of each component in the pore concrete finally determined by calculation is 450 parts of crushed stone, 63.96 parts of cement, 3.55 parts of silicon fume, 1.42 parts of fly ash, 3.55 parts of sand, 0.57 parts of pumping agent, 0.14 parts of slump retaining agent, 0.28 parts of water reducing agent, and 25.72 parts of wat...

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Abstract

The invention discloses an ecological spray anchor slope protection method. The method comprises spraying root penetrating porous concrete to form a porous concrete basement layer after slope surfacefinishing, filling the pores of the porous concrete basement layer with alkaline modified nutrient soil, spraying cement-enhanced alkaline modified composite planting soil so that a greening surface layer is formed and carrying out maintenance treatment. The root penetrating porous concrete comprises broken stones, cement, silicon powder, fly ash, sand, a pumping agent, a moisture retaining agent,a water reducing agent and water. The alkaline modified nutrient soil contains sandy loam soil, organic matters and a greening additive A. The cement-enhanced alkaline modified composite planting soil comprises sandy loam soil, cement, silica fume, gypsum powder, a binder, organic matters, plant seeds and a greening additive B. The invention also discloses the ecological spray anchor slope protection structure. Through innovation of the slope protection components and structure, slope stability and ecological greening are realized.

Description

technical field [0001] The invention relates to the field of slope protection materials, in particular to an ecological spray anchor slope protection structure and a preparation method thereof. Background technique [0002] In all kinds of engineering construction, especially in water conservancy, transportation and mining projects, due to excavation and material mining, the original topography and landform will be destroyed, resulting in various types of slopes that need to be protected. If the protection is not proper, it will cause serious water and soil damage. Environmental problems such as loss and ecological destruction. For all kinds of rock and soil slopes, the commonly used protection methods are concrete spray anchor technology or foreign soil spray technology. [0003] Root penetrating pore concrete is a kind of concrete with many connected pores, and plant roots can penetrate the concrete layer and enter the original soil layer, thereby providing sustainable nu...

Claims

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Application Information

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IPC IPC(8): C04B28/00C05G3/00C05G3/04E02D17/20A01G24/12A01G24/10A01G22/00C05G3/80
CPCC04B28/00C04B2201/50C05D3/00C05D9/00C05F11/00C05G3/00C05G3/80E02D17/20C04B14/02C04B14/06C04B18/08C04B2103/302C04B2103/308C04B2103/22C05F11/08
Inventor 罗小勇肖益许波
Owner 湖南中大园林环境科技有限公司
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