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Cotton straw fiber soil slope surface reinforcement system and construction method thereof

A technology of cotton stalks and construction methods, applied in waterway systems, excavation, infrastructure engineering, etc., can solve problems such as high cost, difficult degradation of plastic products, unfavorable environmental protection, etc., achieve tensile strength, bending flexibility, and reduce vegetation maintenance costs , covering the effect of short curing time

Pending Publication Date: 2018-08-10
江苏省盐城市航道管理处 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of method is relatively mature and efficient, but the cost is high and the procedure is cumbersome, requiring a large amount of foreign soil, high requirements for construction machinery, and complicated on-site treatment. Protection must be strengthened at the initial stage of construction. This method is mainly suitable for rocky or hard soils. slope
[0007] Ecological vegetation blanket has been produced in a factory, with low cost and quick construction. It can effectively prevent rainwater erosion for a certain period of time, and the effect of slope protection and vegetation growth is good; but after the straw rots, the protective effect on the slope is weakened, especially for sandy soil. For soil slopes, rainwater erosion may cause large changes in the slope body and even affect the normal growth of plants, resulting in a greatly reduced protective effect
[0008] The three-dimensional mesh method can form a whole with the mesh body and slope soil after the plants grow, and the slope protection effect is better, but the construction process is more complicated, and the filling soil in the mesh is not easy to operate and difficult to compact, and it needs to be covered and maintained after construction; in addition, Plastic products are not easy to degrade, which is not conducive to environmental protection
So far, the natural plant fibers used for slope protection are mainly rice straw, wheat straw, and coconut shreds, etc., which are in the form of straw braids used for temporary slope stabilization of slopes and embankment projects, and are used to solve temporary sedimentation of slopes Straw sticks or straw strips or straw rollers for controlling and temporary slope erosion protection, as well as coconut fiber nets for slope protection and rice straw mud skin protection, etc. No papers have been found on the use of cotton straw to form slope protection systems or report

Method used

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  • Cotton straw fiber soil slope surface reinforcement system and construction method thereof
  • Cotton straw fiber soil slope surface reinforcement system and construction method thereof
  • Cotton straw fiber soil slope surface reinforcement system and construction method thereof

Examples

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Embodiment 1

[0038] This embodiment is a cotton straw fiber soil slope reinforcement system, such as figure 1 As shown, it includes the slope drainage ditch 5 arranged longitudinally along the slope surface 2, the top drainage ditch 3 arranged transversely along the slope surface 2, and the top drainage ditch 3 laid on the slope surface by the slope surface drainage ditch 5, the slope top drainage ditch 3 and the 2 The retaining wall concrete at the bottom presses the reinforced soil prefabricated block 4 in the area surrounded by 1.

[0039] Reinforced soil prefabricated block 4 is made of upper mixed soil layer 8, lower mixed soil layer 7 and grass seed layer 9 arranged between upper mixed soil layer 8 and lower mixed soil layer 7, upper mixed soil layer 8, lower mixed soil layer Layer 7 is made of reinforced mixed soil obtained by mixing cotton straw fiber, sand, clay, mineral powder, aggregate agent and water-retaining agent. The mass ratio of each component in the reinforced mixed so...

Embodiment 2

[0055] This embodiment is the construction method of the cotton straw fiber soil slope reinforcement system in the first embodiment, including the following steps:

[0056] 1) Making cotton stalk fibers——after removing the roots of cotton stalks, put them into a screw squeezer and add water to squeeze them to make cotton stalk fibers.

[0057] 2) Making reinforced soil prefabricated blocks - mixing cotton straw fiber, sand, clay, mineral powder, agglomerate, and water-retaining agent to make reinforced mixed soil, and filling four-fifths of the reinforced mixed soil into the mold At the height, the lower mixed soil layer is formed, and then grass seeds are evenly spread on the surface of the lower mixed soil layer to form a grass seed layer. After vibration, the reinforced mixed soil is filled to the top of the mold to form an upper mixed soil layer. After the strength is set, the formwork is removed to obtain a reinforced soil prefabricated block.

[0058] Preferably, the re...

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Abstract

The invention relates to a cotton straw fiber soil slope surface reinforcement system and a construction method thereof. The system comprises a slope surface drainage ditch, a slope crest drainage ditch, and reinforced soil precast blocks paved in an area surrounded by the slope surface drainage ditch, the slope crest drainage ditch and a retaining wall concrete pressing top preset on the bottom part of a slope surface. Each reinforced soil precast block is formed by an upper mixed soil layer, a lower mixed soli layer, and a grass seed layer arranged between the upper mixed soil layer and thelower mixed soli layer; and the upper mixed soil layers and the lower mixed soli layers are prepared from reinforced mixed soil obtained through mixing and stirring cotton straw fibers, sandy soil, clay, mineral powder, aggregated agents and water-retaining agents. The construction method comprises the following steps of manufacturing the cotton straw fibers, manufacturing the reinforced soil precast blocks, and paving the reinforced soil precast blocks. The cotton straw fiber soil slope surface reinforcement system and the construction method thereof provided by the invention are good in slope surface coil reinforcement protection effect, convenient and fast to construct, low in construction cost, green, environmental-friendly, and wide in application range.

Description

technical field [0001] The invention relates to a cotton straw fiber soil slope reinforcement system and a construction method, belonging to the technical field of slope protection. Background technique [0002] Due to the influence of factors such as surface runoff, water current and ship waves, most waterway coastlines, especially sandy soil coastlines, need to take protection measures. At present, everyone is mainly concerned about the improvement measures within the range of water surface fluctuations, such as building revetments or slope protection, which can have a good protective effect. However, due to the limitation of construction costs, the top elevation of these revamped waterway slope protections is usually set at about 1m above the normal water level, and the upward range is often in the form of natural soil slopes, supplemented by simple slope consolidation methods. Many unprotected slopes suffer from serious water and soil erosion, and the collapse cannot be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/12E02D17/20E03F5/00
CPCE02B3/12E02D17/205E03F5/00
Inventor 花全刘超徐淦于小娟
Owner 江苏省盐城市航道管理处