Combined greening noise barrier
Technical field
The utility model relates to a kind of Combined greening noise barrier.
Background technology
Along with the quickening of domestic city development, incity, city traffic high speed elevated road is more and more general, and such rapid transit is by the past crowded city, and the impact of its traffic noise on periphery is extremely serious.The daily life of the main harm colony Shi Yan road resident of traffic noise pollution is had a rest.Although the formation of elevated road decreases the traffic pressure of urban development, the pressure caused to environment is also quite huge.
For reducing noise pollution, generally denoising device is set on overhead.Existing denoising device is roughly divided into four kinds: (1) resistive noise barrier, and by header board, rear plate, side plate forms a closed case structure, forms a modular unit.Header board is the galvanized steel plain sheet of perforated percentage 25%, and rear plate and side plate are imperforate galvanized steel plain sheet, and fill out moistureproof centrifugally glass-wool plate between two-ply, sound absorption material polyvinyl fluoride thin film covers.(2) normal transparent noise barrier, adopts transparent polycarbonate plate, because be transparent, the view sense of noise barrier is better, than being easier to the environment incorporating surrounding.(3) microwell plate transparent sound proof barrier, microwell plate transparent sound proof barrier has 2 layers, it applies micropore sound absorption principle, 1 layer of polycarbonate plate wears the aperture that many diameters are 0.8mm, perforated percentage 1%.Another layer of polycarbonate plate is not bored a hole, and the spacing between two-ply is 100mm.It is equivalent to an individual layer microporous sound absorbing structure, solve sound absorption and transparent between contradiction.Due to the effect of sound wave, micropore can't be blocked by dust.(4) combined type noise barrier is resistive noise barrier by half, and half is that transparent sound proof barrier is composited.Above soundproof effect is limited, meanwhile, also attractive in appearance not.
Utility model content
The purpose of this utility model solves the problems of the technologies described above, and proposes a kind of Combined greening noise barrier system.
The purpose of this utility model, will be achieved by the following technical programs:
Combined greening noise barrier, for eliminating reduction noise, comprise acoustic screen, described noise barrier also comprises the greening system that is placed in acoustic screen side and the irrigation system for watering greening system, described irrigation system is placed between pouring greening system and acoustic screen, and noise to carry out after preliminary absorption again through noise reduction that acoustic screen carries out again through greening system.
Preferably, described greening system comprises the Planting board be covered on acoustic screen and the back of the body basic unit be placed on Planting board, described back of the body basic unit being evenly equipped with the planting bag for planting green plants, being filled with matrix in described planting bag.
Preferably, described acoustic screen cross section is arc or straight plate shape.
Preferably, described back of the body basic unit is connected with acoustic screen by keel shoe, and bottom and the concrete guardrail of described back of the body substrate are fixed.
Preferably, described irrigation system comprises the intake pipe connecting water source and the weep pipe arranging and be distributed on intake pipe, described weep pipe and intake pipe UNICOM, and the water side of described weep pipe is placed in above planting bag.
Preferably, described acoustic screen comprises the porous sound insulation slab that arranged by front and back and sound insulating panel forms, and form sound insulation chamber between described sound insulating panel and porous sound insulation slab, described greening system is arranged at porous sound insulation slab side.
Preferably, be bolted between described keel shoe and acoustic screen.
The beneficial effects of the utility model are mainly reflected in: three systems are organically combined, urban traffic is as noise source, conduct to vertical greening surface, through once clearing up and absorption, noise enters noise reduction cavity inside through porous sound absorbing plate, and acts on traditional sound insulating panel, sound insulating panel is as a reflecting surface, noise is returned porous sound insulation slab after one deck is cleared up, carries out the noise reduction process of repetition, and finally reach noise reduction environment protecting.
Accompanying drawing explanation
Fig. 1: Facad structure schematic diagram of the present utility model.
Fig. 2: cross-sectional view of the present utility model, does not now comprise greening system.
Fig. 3: greening system of the present utility model and irrigation system structural representation.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described:
The utility model discloses a kind of Combined greening noise barrier, for eliminating reduction noise.Shown in combination Fig. 1 to Fig. 3, consistent with prior art, included acoustic screen, described acoustic screen adopts traditional structure, namely comprises the porous sound insulation slab 4 arranged by front and back and forms with sound insulating panel 6, form sound insulation chamber between described sound insulating panel 6 and porous sound insulation slab 4.Described acoustic screen cross section is arc or straight plate shape, specifically can adopt according to actual needs.
Described porous sound insulation slab 4 can absorb noise, sound insulating panel 6 by the isolation of noise outside plate.This is prior art, does not repeat them here.
Innovative point of the present utility model is, described noise barrier also comprises and is placed in the greening system 8 of acoustic screen side and the irrigation system for watering greening system 8.Described irrigation system is placed between pouring greening system and acoustic screen, and noise to be carried out after preliminary absorption again through noise reduction that acoustic screen carries out again through greening system.Allow noise enter whole system and repeat noise reduction, reach high noise reduction.
Described greening system is specifically arranged on porous sound insulation slab 4 side, comprise the Planting board 62 be covered on acoustic screen 6 and the back of the body basic unit 63 be placed on Planting board respectively, described back of the body basic unit 63 is evenly equipped with the planting bag 61 for planting green plants 8, in described planting bag, 61 are filled with matrix 82.Based on the sound-absorbing effect of plant, generally select tiny better of intensive, branches and leaves.
Described back of the body basic unit 63 uses bolt to pass through keel shoe 2 to be connected with acoustic screen, and bottom and the concrete guardrail 1 of described back of the body substrate 63 are fixed.
Described irrigation system comprises the intake pipe (meaning not shown in the figures) connecting water source and the weep pipe 9 arranging and be distributed on intake pipe, described weep pipe 9 and intake pipe UNICOM, and the water side of described weep pipe 9 is placed in above planting bag 61.In actual use, remain state of dripping at a slow speed in weep pipe 9, moisture can be kept for a long time for green plants.
The noise barrier phase noise barrier traditional than ever of greening has profile more attractive in appearance, vehicle on overhead it seems that road both sides is exactly green vegetation bed, the urban living environment busy to people increases one brush greenery, adds the possibility of more greenings in urban space simultaneously.
Meanwhile, the greening noise barrier during this is novel, while noise reduction, more can retain original greening effect, purify air, green environment, reduces the eye strain of driver.Greening along road can also adsorb the airborne dust produced in traffic simultaneously, and purification transportation emission is to the pollution in city.
The utility model still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection domain of the present utility model.