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Method for reducing highway noises by noise reduction forest

A highway and noise technology, applied in the field of environmental noise pollution treatment, can solve the problems of lack of universality, lack of normative and unified guidance, etc.

Inactive Publication Date: 2010-12-08
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is a lack of standardization and unified guidance for the structural design of noise-reducing forest belts to reduce highway noise at home and abroad, and most of them are designed for the local area and do not have universal applicability

Method used

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  • Method for reducing highway noises by noise reduction forest
  • Method for reducing highway noises by noise reduction forest
  • Method for reducing highway noises by noise reduction forest

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] refer to image 3 , choose Shu juniper to plant within the first 10 meters, the distance between Shu juniper is 2.5 meters, the height is 1.8 meters to 2.4 meters, a total of 5 rows, and the middle 10 meters are planted with sweet-scented osmanthus and cloves. The height is 3-5 meters, the last 10 meters is the arbor layer, planted with evergreen cedar and Italian poplar, the spacing is 5 meters, the height is 5-8 meters, and the ground cover is white clover.

Embodiment 2

[0037] refer to Figure 4 , choose oleander to plant within the first 10 meters, the distance between oleander is 1.5 meters, the height is 1.2 meters to 1.8 meters, a total of 10 rows, and the middle 10 meters are planted with heather and crape myrtle, and the distance between the two is 3 The height is 2.5 meters to 3.5 meters, and the last 10 meters is the arbor layer. Evergreen privet is planted at a distance of 5 meters, and the height is 5 meters to 8 meters. The ground cover is safflower sorrel. The planting density is 49 clumps / square meter.

Embodiment 3

[0039] refer to Figure 5 , choose Pittosporum balls for planting within the first 10 meters. The distance between Pittosporum balls is 1.5 meters, and the height is 1.2 meters to 1.5 meters. There are 5 rows in total. Osmanthus and pomegranate are planted in the middle 10 meters. meters, the height is 2.5-3.5 meters, the last 10 meters is the arbor layer, interplanted camphor and Italian poplar, the spacing is 5 meters, the height is 5-8 meters, the ground cover is white clover, the length of the whole forest belt is 100 metres.

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Abstract

The invention provides a method for reducing highway noises by a noise reduction forest. A mixed forest belt or a pure forest belt is planted on highway sides of a filling highway section and an excavating highway section to reduce the noises, the mixed forest belt or the pure forest belt is hierarchically planted from low to high along both sides of a highway, wherein broad-leaved trees accountsfor 70 percent, and evergreen trees accounts for 30 percent; the mixed forest belt is planted as the noise reduction forest to reduce the noises on the filling highway section, in the mixed forest belt, shrubs, dungarungas and arbors are hierarchically planted from low to high along both sides of the highway, wherein the plating width of the shrubs is 5m-10m, the average planting density is 25strains / m<2>, and the average crown height is 1m; the pure forest belt is planted as the noise reduction forest to reduce the noises on the excavating highway section, wherein evergreen dungarungas are planted in an area near the highway, the plating width of the dungarunga forest belt is 5-10m, the average planting density is 2m*2m, and the average crown height is 2.5m; the arbors are planted on thetop end of a side slope, the plating width of the arbor forest belt is 10m-30m, and the average planting density is 5m*5m, the average crown height is 5m; and lawns are planted on a ground cover. Themethod has obvious noise reduction effect and universality.

Description

technical field [0001] The invention relates to the technical field of environmental noise pollution treatment, in particular to a method for reducing noise around expressways. Background technique [0002] Expressways have developed rapidly in our country in recent years, which has greatly promoted the development of social economy. But while it brings convenient and fast transportation to people, the noise generated by vehicles also has a great impact on daily life. For the control of traffic noise, we mainly start from three aspects: prevention and control of sound sources, cutting off transmission channels and protection of sound receiving points. In the case of a small amount of noise reduction targets, the development of green belts to reduce ambient air and noise pollution is recognized as the most economical and affordable method. [0003] The reason why the green belt can reduce noise is that when the sound wave hits the forest belt, part of the sound energy is ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01F8/00
Inventor 李贺周伯明郑洲黄健李晓倩贾鹏毛冉
Owner SOUTHEAST UNIV