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Sectored multi-step ecological buffer revetment system

A multi-step, fan-shaped technology, applied in coastline protection, biological water/sewage treatment, climate change adaptation, etc., can solve the problems of limited interception of non-point source pollutants entering rivers, high cost of organic cementing materials, and restrictions on promotion and use. Achieve stable and reliable water purification effect, strong adaptability of water quantity and water quality, and increase the effect of hydraulic retention time

Inactive Publication Date: 2013-07-24
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] There are many methods of ecological slope protection technology, such as the use of geotechnical material composite planting base, barbed wire and gravel composite base, geotechnical material soil-fixing planting base, vegetation-type ecological concrete, cement ecological planting base and soil curing agent, etc. Slope protection has a good effect on stabilizing the bank slope structure and improving the bank slope landscape to a certain extent, but it has a very limited effect on intercepting surface pollutants from entering the river, and the cost of organic cementing materials is too high, and the construction volume is relatively large. Large, promotional use is limited

Method used

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings.

[0049] figure 1 It is a schematic diagram of the fan-shaped multi-step ecological buffer revetment system structure, figure 2 yes figure 1 It can be seen from the figure that the first-level interception wall A5, the second-level interception wall B6, the third-level interception wall C7 and the fourth-level interception wall D8 of sand-free concrete are built on the bank slope. Arranged downward step by step, it is 4 levels, and multi-level interception walls can also be set according to needs, but at least 4 levels; the thickness of the wall is 10-15cm; the middle of the first-level interception wall A5 is the highest, with a height of 75~ 85cm, gradually decreasing to both sides until the wall height at both ends is 55-65cm. The two ends of the second-level interception wall B6 are the highest at 85-95cm, and gradually decrease to 55-65cm in the middle; due to t...

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Abstract

The invention discloses a sectored multi-step ecological buffer type revetment system. The revetment system is provided with at least four levels of steps, blocking walls are sequentially arranged on the outer sides of the steps, one plant planting zone is arranged in the blocking wall of each level, soil matrix is arranged in the upper layer of each plant planting zone, yellow sand, ceramsite, soft rock and zeolite are sequentially in the lower layer of the plant planting zone of each level, and emersed landscape plants and submergence-tolerant plants are arranged in the plant planting zone of each level; hydraulic drop platforms are sequentially arranged in the corresponding positions of spaced plant planting zones of the blocking walls; and one guide plate is arranged between each blocking wall and the corresponding hydraulic drop platform; the plant planting zone of the first level is connected with a farmland drainage canal and is sectored towards the downstream to form a hydraulic-drop type hierarchical structure in an open sectored shape, the sector radius is 5-8 m, and the central angle is 45 degrees-75 degrees; and the blocking wall of the last level is connected with a river channel. The sectored multi-step ecological buffer type revetment system not only has the efficacies of protecting river channel side slope, and realizing flood water drainage and water and soil conservation, but also has good purification and landscape effects.

Description

technical field [0001] The invention relates to a river revetment facility, in particular to a fan-shaped multi-step ecological buffer revetment system which has the effect of intercepting and purifying pollutants entering the river channel in the form of surface sources. Background technique [0002] In recent years, agricultural non-point source pollution has become a major water environment problem in my country. Excessive application of chemical fertilizers has led to a large loss of nutrients such as nitrogen and phosphorus, resulting in eutrophication of lakes and other water bodies, making them lose their use value for production and life. And may cause groundwater pollution and even food contamination. The pollution load of agricultural non-point sources COD, N, and P has accounted for 1 / 2-2 / 3 of the water pollution load. After the outbreak of the cyanobacteria event in Taihu Lake, the research on the ecological interception technology of non-point source runoff and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/12A01G1/00C02F3/32
CPCY02A10/30
Inventor 于海明李阳孙井梅任炳昱王晓玲
Owner TIANJIN UNIV
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