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Earthwork standard room and application of earthwork standard room to slope re-greening

A technology of geocells and slopes, applied in infrastructure engineering, excavation, non-woven fabrics, etc., can solve problems such as weak soil fixing ability, lack of water absorption, water storage, and lack of water absorption and water storage capacity. Achieve the effects of improving land resource structure, prolonging water supply time, and improving water storage capacity

Active Publication Date: 2019-06-04
JOFO GREEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The geocells involved in this invention are traditional geocells, which do not have a strong ability to fix soil and do not have the functions of water absorption and water storage.
[0007] To sum up, the prior art geocell cannot overcome the following defects at the same time:
[0010] (3) Does not have the ability to absorb and store water

Method used

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  • Earthwork standard room and application of earthwork standard room to slope re-greening
  • Earthwork standard room and application of earthwork standard room to slope re-greening
  • Earthwork standard room and application of earthwork standard room to slope re-greening

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A geocell, the geocell is made of ecological non-woven fabric;

[0039] The raw material of the ecological non-woven fabric is polypropylene staple fiber, including short fibers of two specifications, respectively 6D*65mm and 5D*70mm; the mass ratio of the two kinds of short fibers is: 30% of 6D*65mm polypropylene staple fiber, 5D*70mm polypropylene staple fiber 70%.

[0040] The breaking strength of the above-mentioned polypropylene staple fibers is >4.5cN / dtex.

[0041] The above-mentioned polypropylene staple fibers are embracing each other to form a 3-dimensional porous fiber web, and finally a non-woven fabric with certain strength and stiffness is obtained by calendering.

[0042] The above-mentioned polypropylene staple fibers are mainly gray in color, including but not limited to black, green, white or a mixture of the above;

[0043] The above-mentioned ecological non-woven fabric: multi-layer fibers are stacked, and pores are formed by curling and cohesion b...

Embodiment 2

[0055] The raw material analysis experiment of embodiment 2 ecological non-woven fabrics

Embodiment 2-10

[0056] Same as the non-woven fabric preparation method of Example 1, only change the raw material specification and proportioning used, carry out Example 2-10;

[0057] The raw material ratio of embodiment 2-10 is as follows:

[0058] Example 2:

[0059] The specifications and ratio of polypropylene staple fiber used are: 40% of 4D*60mm polypropylene staple fiber and 60% of 6D*70mm polypropylene staple fiber.

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Abstract

The invention provides an earthwork standard room and application of the earthwork standard room to slope re-greening. The earthwork standard room is made of ecological non-woven fabric. The ecological non-woven fabric is prepared from the raw material of polypropylene staple fiber. The fineness of the polypropylene staple fiber of the raw material of the ecological non-woven fabric is 4-8 D, thelength of the polypropylene staple fiber is 60-85 mm, the bending length of the polypropylene staple fiber is 15-21 cm, and the ratio of the water resistance performance to the static contact angle isgreater than or equal to 120 degrees. According to the earthwork standard room, on the basis that the soil fixation thickness reaches 30-45 cm, the good water absorption and water storage capacity isachieved, the water storage capacity of a slope is improved by 2 times or above, and the amount of water scouring the slope during rainfall is decreased; and meanwhile, water intercepted by the earthwork standard room can be slowly released, more water is provided for the growth of green plants on the slope, and the water supply time is also prolonged.

Description

technical field [0001] The invention relates to a slope protection method, in particular to a geocell and its application in regreening a slope, and belongs to the technical field of environmental protection. Background technique [0002] The traditional geocell is a grid cell structure formed by high-strength HDPE or PP copolymer wide band, which is welded or riveted by strong force. It can expand and contract freely, and can be collapsed during transportation. When used, it is opened and filled with earth, stone or concrete materials to form a structure with strong lateral restrictions and high rigidity. [0003] In slope regreening, there are currently two types of geocell vegetation slope protection that are most commonly used: one is a geocell composed of geogrid assemblies; the other is composed of high-strength strip polymers. [0004] In order to achieve better soil-fixing effect, the geocells in the prior art constantly enhance their own strength; while the strengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20D04H1/4291D04H1/46
Inventor 尤金成
Owner JOFO GREEN CO LTD
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