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Ecological revetment and construction method thereof

An ecological bank protection and cage technology, which is applied in chemical instruments and methods, botanical equipment and methods, coastline protection, etc. Ecological restoration is not applicable and other problems, to achieve the effect of beautiful landscape, fast construction and light weight

Active Publication Date: 2016-06-15
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using the above-mentioned technologies to carry out ecological bank revetment construction, it is necessary to destroy the original bank revetment and rebuild it. Although the bank revetment has water permeability, vegetation and firmness after completion, the entire river bank revetment is more destructive, and the project volume and investment cost are also high. Huge, not suitable for river ecological restoration of hard cement banks in cities and towns

Method used

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  • Ecological revetment and construction method thereof
  • Ecological revetment and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First, measure the water depth of the river along the river, and determine the height of 1m (or 1.5m, usually the water depth of the river is less than 1.5m, you only need to customize the height of 1m), width 0.5-1.0m, and length 1m according to the water depth of the river. -2m anti-rust metal cages made of low-carbon steel wire, plastic-coated wire, galvanized wire, and zinc-aluminum alloy wire.

[0023] At the same time, a custom-made anti-rust angle iron fixed frame with 3 installation holes, the width of the fixed frame is slightly larger than the width of the metal cage, and the installation holes are opened every 10cm in the length direction of the fixed frame, and fasteners are provided to hang the metal cage.

[0024] Purchase corn cobs with a particle size of 3-5cm and crushed limestone with a particle size of 3-5cm from the market; then, construct and install ecological revetment components at the river channel site.

[0025] The installation method is to fi...

Embodiment 2

[0029] Embodiment 2: Indoor small-scale pilot test simulation experiment

[0030] In the indoor 2×4m cement upright shore pool, firstly control the water level so that the water depth is controlled at 60±5cm, and then the anti-corrosion water tank made of corncobs with a particle size of 5cm and crushed stones with a particle size of 5cm is filled with zinc-aluminum alloy wire. Rusty metal cage. Fix the fixed metal frame on the hard cement vertical bank wall with expansion bolts at intervals of 1m, and then hang the above metal net cage on the wall with fasteners. After the metal cage is installed, fill the purchased corn cobs into the metal cage to a height of 70cm to a distance of 30cm from the top of the metal cage; then fill it with gravel with a thickness of 30cm.

[0031] Plant aquatic plants in fixed metal cages, specifically the planting density is 6 clumps of reeds / m 2 Zizania 6 clumps / m 2 , cattail 5 clumps / m 2 , Iris 4-6 plants / m 2 , Zailihua 2 plants / m 2 . T...

Embodiment 3

[0032] Example 3: Ecological revetment project for the vertical cement bank section of Mingyue River in Jiaxing City

[0033] To carry out ecological revetment on the 250m-long upright cement bank section of Mingyue River in Jiaxing City, firstly control the water level in the project area so that the water depth is controlled at 50±5cm, and then fill the low-carbon steel wire with corn cobs with a particle size of 3cm and gravel with a particle size of 3cm Made of rust-proof metal cages.

[0034] Fix the fixed metal frame on the hard cement vertical bank wall with expansion bolts at intervals of 1m, and then hang the above metal net cage on the wall with fasteners. After the metal cage is installed, fill the purchased corn cobs into the metal cage to a height of 70cm to a distance of 30cm from the top of the metal cage; then fill it with gravel with a thickness of 30cm.

[0035] Aquatic plants were planted in a fixed metal cage on March 20, 2014, and the specific planting de...

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Abstract

The invention relates to methods for urban river hard vertical bank ecologicalization, landscaping and water quality purification, in particular to an ecological revetment and a construction method thereof. Materials needed by the method comprise metal net cages, cobs, gravels, fixing frames and wetland plants. Firstly, according to the water depth of the riparian zone, the metal net cages and the angle iron fixing frames are customized; the fixing frames are fixed to a hard vertical bank wall through expansion bolts every 1 m, and then the metal net cages are hung on the wall through fasteners; the metal net cages are filled with the bought cobs, the filling cobs are 70 cm high until the cobs are away from the top of the corresponding metal net cage by 30 cm, and then the metal net cages are filled with the gravels which are 30 cm thick; and finally the selected wetland plants are planted on the surface layer of each metal net cage. The ecological revetment is easy to mount and high in construction speed, the original river bank is not damaged, and nitrogen and phosphorus elements in water bodies are well purified; the constructed revetment has beautiful landscape and is suitable for remediation of the ecological function of hard vertical banks of water bodies such as urban rivers and lakes.

Description

technical field [0001] The invention relates to ecological restoration of hard banks such as river courses, lakes and reservoirs, is an ecological revetment and a construction method thereof, and belongs to the technical fields of environmental protection, water and soil conservation, ecological and landscape restoration, and the like. Background technique [0002] Due to the need for flood control and flood control and the weak awareness of ecological environment protection in the past, a large number of hard cement dams have been built on rivers, lakes and other water bodies in my country, which not only blocked the ecological continuity between the water ecosystem and the terrestrial ecosystem, but also destroyed the waterway. The original ecological environment of the ecotone has lost various ecological functions and biodiversity such as retention and digestion of pollutants in the riverbed slope and lakeshore zone, and is not conducive to water and soil conservation, redu...

Claims

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Application Information

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IPC IPC(8): E02B3/12C02F3/32A01G9/02
CPCA01G9/02C02F3/32E02B3/12Y02A10/00Y02W10/10
Inventor 陈开宁古小治孙淑云黄蔚刘淼
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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