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Ecological slope protection method for reinforcing slope soil by combining permeable retaining wall and penetration type embedded steel bar belt

A technology of ecological slope protection and slope soil accumulation, applied in soil protection, excavation, water conservancy projects, etc., can solve problems such as ineffective reinforcement of slope soil, poor drainage of drainage holes, instability of water accumulation at the foot of the slope, etc., to avoid soil Failure of arch effect, prevention of soil erosion, effect of reinforcement of shallow soil slope

Active Publication Date: 2020-05-19
SICHUAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to aim at the deficiencies of the existing slope retaining structure and ecological protection technology, and provide an ecological slope protection method that combines permeable retaining walls and penetrating type planting bar belts to reinforce slope accumulation, so as to simultaneously realize the deep and ecological protection of slopes. The reinforcement of shallow slope soil, especially the reinforcement of potential deep sliding surface, makes up for the lack of effective reinforcement of slope soil due to the short root system of general plants, and at the same time solves the failure of soil arch effect caused by the decrease of slope soil strength after rainfall and the existing stone retaining wall The drainage hole is easy to be blocked and the drainage is not smooth, which leads to the problem of water accumulation at the foot of the slope and instability

Method used

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  • Ecological slope protection method for reinforcing slope soil by combining permeable retaining wall and penetration type embedded steel bar belt
  • Ecological slope protection method for reinforcing slope soil by combining permeable retaining wall and penetration type embedded steel bar belt
  • Ecological slope protection method for reinforcing slope soil by combining permeable retaining wall and penetration type embedded steel bar belt

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Effect test

Embodiment 1

[0044] The ecological slope protection method of combining the permeable retaining wall and the penetration-type planting bar belt to reinforce the slope accumulation soil described in this implementation is as follows:

[0045] (1) Excavate the storage and drainage ditches 4 at the bottom of the slope and the slope perpendicular to the slope direction, excavate the storage and drainage ditches at both ends of the storage and drainage ditches along the slope direction, and excavate the direct drainage ditch connected with the storage and drainage ditch and directly lead to the drainage ditch at the foot of the slope;

[0046] (2) At a certain distance along the storage and drainage ditch, several holes in the vertical direction are drilled with an auger in advance, and anti-skid short piles are buried in the holes with a gravity hammer. Since it is necessary to bury the anti-sliding short piles into the hard soil or bedrock layer deep in the slope, a lengthened steel casing for...

Embodiment 2

[0055] The difference between this embodiment and Embodiment 1 is that the anti-sliding short piles are short steel tendons. The length of the five steel bars in the middle of the tendon is set to be 40 cm longer than the other steel bars in the tendon, so as to connect the falcon pile head with the steel casing, so that the steel casing thinner than the short tendon can be inserted into the tendon , so that the steel pipe sleeve can be pulled out smoothly.

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Abstract

The invention provides an ecological slope protection method for reinforcing slope soil by combining a permeable retaining wall and a penetration type embedded steel bar belt. The method is characterized in that a penetration type exploration and construction two-in-one method is utilized, anti-sliding short piles are arranged to the designed depth to reinforce a potential deep sliding surface, the embedded steel bar belt (hydrophilic reinforced belt) is connected with the anti-sliding short piles in a pulling mode, the hydrophilic reinforced belt is equivalent to increase the root length (imitation rooting) of slope plants, the defect that the slope soil cannot be effectively reinforced due to the fact that the root system of a common plant is short is overcome, and reinforcing and ecological protection of the deep slope soil and the shallow slope soil can be effectively realized by combining dense backfill soil or self-silting soil around the embedded steel bar belt. A slope water storage and drainage ditch is manufactured by laying waterproof films or concrete plates on the side surface and the bottom of the ditch, filling the ditch with permeable gravel and laying permeable concrete on the top surface of the ditch, so that rainfall can be smoothly discharged into a guide drainage ditch in the slope direction after entering the water storage and drainage ditch, and further discharged to a drainage ditch at the slope toe. The permeable retaining wall at the slope toe can replace a stone-laying retaining wall which is frequently used at present and is prone to being blocked, so that the anti-sliding force and the drainage performance of the slope soil are improved, and the problems that the soil arch effect is invalid due to the fact that the strength of the slope soilis reduced after rainfall, and the slope toe is unstable due to the fact that drainage is not smooth after a drainage hole of an existing stone-laying retaining wall is blocked are solved.

Description

technical field [0001] The invention belongs to the field of slope retaining structures and slope protection engineering, and in particular relates to a method for simultaneously reinforcing deep and shallow slope soil and ecological slope protection. Background technique [0002] In order to prevent slope damage and landslides caused by rainfall and water soaking at the foot of the slope, traditional structural forms such as slope cutting and load reduction, stone retaining walls, and anti-slide piles are often used. If these engineering measures are properly designed and constructed, they can generally prevent the damage of the slope. However, due to the failure of the soil arch effect due to the decrease in the strength of the slope soil after the rainfall, the slope protection of the anti-slide piles fails, or the drainage holes of the retaining wall are easily blocked and the slope is damaged. Poor body drainage leads to project failure. Therefore, at present, the gabi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D29/02E02D3/10E03F3/02E03F3/04
CPCE02D3/10E02D17/20E02D17/207E02D29/02E02D2300/002E02D2300/0029E02D2300/0034E03F3/02E03F3/04
Inventor 周成陈群王一冰刘恩龙陈晓红谭昌明曾红艳王琛胡刚龚震张劢捷范丽娟
Owner SICHUAN UNIV
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