CN110318347B - Wave combination formula snow wall - Google Patents
Wave combination formula snow wall Download PDFInfo
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- CN110318347B CN110318347B CN201910652821.6A CN201910652821A CN110318347B CN 110318347 B CN110318347 B CN 110318347B CN 201910652821 A CN201910652821 A CN 201910652821A CN 110318347 B CN110318347 B CN 110318347B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/02—Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
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Abstract
The invention discloses a wave-shaped combined snow-blocking wall, which comprises at least three groups of snow-blocking monomers arranged side by side, wherein each snow-blocking monomer comprises a high vertical type snow-blocking structure, two neutral type snow-blocking structures and two low vertical type snow-blocking structures are symmetrically arranged on two sides of the high vertical type snow-blocking structure, each neutral type snow-blocking structure is positioned between each high vertical type snow-blocking structure and each low vertical type snow-blocking structure, and the height of each neutral type snow-blocking structure is lower than that of each high vertical type snow-blocking structure and higher than that of each low vertical type snow-blocking structure; all snow blocking structures are provided with a frame, and a snow blocking net sheet is arranged in the frame. The combined snow-blocking wall is formed by a plurality of snow-blocking monomers, is of a wave-shaped structure, realizes two modes of snow blocking and snow guiding, improves snow-blocking efficiency and prolongs the service life, achieves better snow-blocking effect and reduces the manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of wind-blowing snow disaster prevention and control, and relates to a wave-shaped combined snow retaining wall with snow blocking and guiding functions.
Background
Wind blowing snow is a multi-phase flow weather phenomenon that snow particles carried by air flow are dispersed and run on the ground, and is also called wind and snow flow, namely white breeze. The wind-blowing type wind-blowing snow remover is divided into three types of low-blowing wind, high-blowing wind and storm snow according to the strength and the like. It is a more complex special fluid and has greater harmfulness.
Snow fencing fences are currently used to block the hazards of wind blowing. When the wind blows snow to pass through the snow-blocking fence, one part of the wind is blocked by the snow-blocking fence to lose wind energy, and a vortex is formed in front of the snow-blocking fence, so that the wind speed of the wind blowing snow is rapidly reduced, the energy of the air flow driving snow particles is weakened, and a large amount of wind blowing snow particles are deposited in front of and behind the snow-blocking fence to form accumulated snow.
The existing snow barrier technology mainly aims at snow resistance, accumulated snow is easily formed near the snow barrier, the snow resistance efficiency of the snow barrier is reduced, and the manufacturing cost is higher. Therefore, there is a need to develop a snow-blocking wall with low cost, environmental protection and high snow-blocking efficiency to meet the snow-blocking requirement of the wind-blown snow area.
Disclosure of Invention
The invention aims to provide the wavy combined snow retaining wall suitable for snow prevention in the road area of the wind-blown snow area, which has two snow prevention modes of snow resistance and snow guide, improves the snow prevention efficiency, prolongs the service life of the snow retaining wall, can save a large amount of construction cost and maintenance cost, and meets the snow prevention requirement in the wind-blown snow area.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a wave-shaped combined snow-blocking wall comprises at least three groups of snow-blocking monomers which are arranged side by side, wherein each snow-blocking monomer comprises a high vertical type snow-blocking structure, two neutral type snow-blocking structures are symmetrically arranged on two sides of the high vertical type snow-blocking structure, two low vertical type snow-blocking structures are symmetrically arranged on two sides of the high vertical type snow-blocking structure, the neutral type snow-blocking structures are positioned between the high vertical type snow-blocking structures and the low vertical type snow-blocking structures, the height of each high vertical type snow-blocking structure is higher than that of each neutral type snow-blocking structure, and the height of each neutral type snow-blocking structure is higher than that of each low vertical type snow-blocking; all snow blocking structures comprise a frame consisting of two stand columns and two transverse pull rods, three rows of snow blocking net pieces with the porosity sequentially reduced are arranged in the frame in the high vertical type snow blocking structure from top to bottom, two rows of snow blocking net pieces with the porosity sequentially reduced are arranged in the frame in the neutral type snow blocking structure from top to bottom, and one row of snow blocking net pieces are arranged in the frame in the low vertical type snow blocking structure.
The combined snow-blocking wall comprises a plurality of groups of snow-blocking monomers, each group of snow-blocking monomers comprises a plurality of snow-blocking structures with different heights, so that the snow-blocking wall consisting of the plurality of snow-blocking monomers forms a wave-shaped structure, snow blocking and guiding are realized, snow-blocking efficiency is improved, the service life is prolonged, a better snow-blocking effect is achieved, and the manufacturing cost is reduced.
Drawings
FIG. 1 is a schematic view of the modular snow wall of the present invention.
Fig. 2 is a schematic view of a high-vertical type snow retaining structure of the combined type snow retaining wall of the present invention.
Fig. 3 is a schematic view of a neutral snow-retaining structure in the combined snow-retaining wall of the present invention.
Fig. 4 is a schematic view of a low-vertical type snow retaining structure of the combined snow retaining wall of the present invention.
In the figure: 1. the snow protection structure comprises a high vertical type snow retaining structure, 2 a neutral type snow retaining structure, 3 a low vertical type snow retaining structure, 4 a roadbed, 5 a first upright post, 6 a first snow retaining mesh, 7 a first vertical support rod, 8 a first upper cross pull rod, 9 a first cross support rod, 10 a second upright post, 11 a second snow retaining mesh, 12 a third snow retaining mesh, 13 a first lower cross pull rod, 14 a third upright post, 15 a second upper cross pull rod, 16 a second vertical support rod, 17 a fourth upright post, 18 a second cross support rod, 19 a second lower cross pull rod, 20 a fifth upright post, 21 a third upper cross pull rod, 22 a third vertical support rod, 23 a sixth upright post and 24 a third lower cross pull rod.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the wavy combined snow-barrier wall of the present invention comprises at least three sets of snow-barrier monomers arranged side by side, wherein the snow-barrier monomers comprise high vertical snow-barrier structures 1, two middle vertical snow-barrier structures 2 are symmetrically arranged on both sides of the high vertical snow-barrier structures 1, two low vertical snow-barrier structures 3 are also symmetrically arranged on both sides of the high vertical snow-barrier structures 1, the middle vertical snow-barrier structures 2 are located between the high vertical snow-barrier structures 1 and the low vertical snow-barrier structures 3, the height of the high vertical snow-barrier structures 1 is higher than that of the middle vertical snow-barrier structures 2, and the height of the middle vertical snow-barrier structures 2 is higher than that of the low vertical snow-barrier structures 3.
The distance between the neutral snow retaining structure 2 and the low vertical snow retaining structure 3 is 5-10 times of the height h1 of the low vertical snow retaining structure 3; the distance between the high vertical snow retaining structure 1 and the middle vertical snow retaining structure 2 is 5-10 times of the height h2 of the middle vertical snow retaining structure 2. The distance between two adjacent groups of snow-blocking monomers, namely the distance L between two adjacent low vertical snow-blocking structures 3 in the two adjacent groups of snow-blocking monomers, is 10-20 m.
As shown in fig. 2, the high vertical snow retaining structure 1 in the wave-shaped combined snow retaining wall of the present invention comprises a first upright post 5 and a second upright post 10 which are vertically arranged, wherein the top end of the first upright post 5 is fixedly connected with the top end of the second upright post 10 through a first upper cross pull rod 8, the middle part of the first upright post 5 is fixedly connected with the middle part of the second upright post 10 through a first lower cross pull rod 13, two first vertical support rods 7 are arranged between the first upright post 5 and the second upright post 10 side by side, the upper ends of the first vertical support rods 7 and the upper ends of the second vertical support rods 9 are fixedly connected with the first upper cross pull rod 8, and the lower ends of the first vertical support rods 7 and the lower ends of the second vertical support rods 9 are fixedly connected with the first lower cross pull; two first cross support rods 9 are arranged between the first upper cross pull rod 8 and the first lower cross pull rod 13 side by side, one end of each first cross support rod 9 is fixedly connected with the first upright post 5, and the other end of each first cross support rod 9 is fixedly connected with the second upright post 10;
first stand 5, second stand 10, first last horizontal pull rod 8 and first horizontal pull rod 13 enclose into a frame, and two first vertical support bars 7 and two first horizontal support bars 9 that set up in this frame divide into nine spaces that the size is the same with this frame, and the three one row of constituteing in these nine spaces forms in upper, middle, lower three rows in the frame, all installs first fender snow net piece 6 in being located the three space of one row above, all installs second fender snow net piece 11 in being located the three space of one row in the middle, all installs third fender snow net piece 12 in being located the three space of one row below.
As shown in fig. 3, the neutral snow retaining structure 2 in the waved combined snow retaining wall of the present invention comprises a third upright column 14 and a fourth upright column 17 which are vertically arranged side by side, wherein the top end of the third upright column 14 is fixedly connected with the top end of the fourth upright column 17 through a second upper cross tie 15, and the middle part of the third upright column 14 is fixedly connected with the middle part of the fourth upright column 17 through a second lower cross tie 19; two second vertical support rods 16 are arranged between the third upright post 14 and the fourth upright post 17 in parallel, the upper ends of the second vertical support rods 16 are fixedly connected with a second upper transverse pull rod 15, the lower ends of the second vertical support rods 16 are fixedly connected with a second lower transverse pull rod 19, a second transverse support rod 18 is arranged between the second upper transverse pull rod 15 and the second lower transverse pull rod 19, one end of the second transverse support rod 18 is fixedly connected with the third upright post 14, and the other end of the second transverse support rod 18 is fixedly connected with the fourth upright post 17; the third upright post 14, the fourth upright post 17, the second upper transverse pull rod 15 and the second lower transverse pull rod 19 form another frame in a surrounding mode, the second transverse support rod 18 and the two second vertical support rods 16 in the other frame divide the other frame into six square spaces with the same size, the six square spaces form one row, an upper row and a lower row are formed in the other frame, the second snow blocking net piece 11 is installed in the three square spaces located in the upper row, and the third snow blocking net piece 12 is installed in the three square spaces located in the lower row.
As shown in fig. 4, the low vertical snow retaining structure 3 in the wavy combined snow retaining wall of the present invention comprises a fifth upright column 20 and a sixth upright column 23 vertically arranged side by side, wherein the top end of the fifth upright column 20 is fixedly connected with the top end of the sixth upright column 23 through a third upper cross pull rod 21, the middle part of the fifth upright column 20 is fixedly connected with the middle part of the sixth upright column 23 through a third lower cross pull rod 24, two third vertical support rods 22 are arranged side by side between the fifth upright column 20 and the sixth upright column 23, the upper ends of the third vertical support rods 22 are fixedly connected with the third upper cross pull rod 21, and the lower ends of the third vertical support rods 22 are fixedly connected with the third lower cross pull rod 24; the fifth upright post 20, the sixth upright post 23, the third upper cross pull rod 21 and the third lower cross pull rod 24 enclose a third frame, two third vertical support rods 22 in the third frame divide the third frame into three square frames which are arranged side by side, and a third snow blocking mesh 12 is installed in each square frame.
The first snow-retaining mesh 6, the second snow-retaining mesh 11 and the third snow-retaining mesh 12 are all made of PE mesh. The porosity of the first snow-retaining mesh 6 is greater than the porosity of the second snow-retaining mesh 11, and the porosity of the second snow-retaining mesh 11 is greater than the porosity of the third snow-retaining mesh 12. More specifically, the first snow barrier screen 6 has a porosity of 45%, the second snow barrier screen 11 has a porosity of 30%, and the third snow barrier screen 12 has a porosity of 20%. The width (vertical direction) of the first snow-retaining mesh 6, the width (vertical direction) of the second snow-retaining mesh 11 and the width (vertical direction) of the third snow-retaining mesh 12 are all 50-70 cm.
In order to effectively reduce the influence of wind blowing snow on road traffic safety, the wavy combined snow-blocking wall is arranged on the windward side of the road, namely 3-5 groups of snow-blocking monomers are sequentially arranged on the windward side in the direction away from a road bed 4 to form the arrangement form shown in figure 1. At this time, the lower tie rods of all the snow retaining structures are positioned on the ground and contacted with the ground, and the parts of the upright posts positioned below the lower tie rods are buried under the ground and fixedly connected in the soil. Because each group of snow-blocking monomers consists of snow-blocking structures with different heights, 3-5 groups of snow-blocking monomers form the wavy snow-blocking wall. This keep off snow wall forms and hinders snow, lead the snow mode that prevents that snow combines together, keep off the side of the wall windward along with the continuous increase of snow thickness promptly, according to the aerodynamic principle, windward side snow can be piled up in the contained angle between snow structure and the ground, and form a slope gradually, and the formation of slope can form a structural style who leads snow, make the wind blow snow take place jump and the suspension, make the nearly wind of earth's surface blow snow keep away from road bed 4, reduce the wind and blow the harm of snow to the road, the guarantee driving safety.
Meanwhile, the porosity of the snow blocking net pieces installed in the high-vertical snow blocking structure 1 is sequentially increased from bottom to top, according to the aerodynamic principle, when wind blows snow to pass through the snow blocking net, part of the wind blows the snow to climb up along the snow blocking net to form a snow guiding form, and part of the wind blows the snow to form a vortex around the snow blocking net and fall near the snow blocking net to form a snow blocking form. The porosity of the snow blocking net pieces installed in the middle-standing type snow blocking structure 2 is sequentially increased from bottom to top, when snow blows and passes through the snow blocking net, part of the snow blows and can climb up along the snow blocking net to form a snow guiding form, and part of the snow blows and forms a vortex around the snow blocking net to fall near the snow blocking net to form a snow blocking form. When wind blows snow to pass through the low-standing snow retaining structure 3, part of the wind blows the snow and can climb along with the snow retaining net to form a snow guiding form, and part of the wind blows the snow and forms vortex flow in front of and behind the snow retaining net to fall near the snow retaining net to form a snow blocking form.
The high vertical snow-blocking structure 1 in the snow-blocking monomer is provided with three PE meshes with different porosities, the neutral snow-blocking structure 2 is provided with two PE meshes with different porosities, and the low vertical snow-blocking structure 3 is provided with only the PE mesh with the lowest porosity, so that the snow-blocking monomer forms a lower-density upper-sparse type pore mesh structure. This structural design is mainly based on the aerodynamic principle, when snow blows through this pore network structure, because close the top is dredged down, the wind that is in the snow blocking monomer lower part blows snow and has partly can pass through the snow blocking net, another part can upwards climb along with the snow blocking net, partly wind blows snow with higher speed and crosses this snow blocking monomer, partly wind blows snow and forms the vortex and fall near this snow blocking monomer, form one kind and hinder the snow mode that the snow was compromise with leading the snow, improve the life who prevents snow efficiency and the snow blocking net.
The snow-blocking wall composed of a plurality of groups of snow-blocking monomers can effectively block wind and snow blowing and ensure the driving safety of roads.
All the upright columns, the transverse pull rods, the transverse support rods and the vertical support rods can effectively ensure the stability of the snow retaining wall in the snow blowing area.
Claims (5)
1. The wavy combined snow-retaining wall is characterized by comprising at least three groups of snow-retaining monomers arranged side by side, wherein each snow-retaining monomer comprises a high vertical type snow-retaining structure (1), two middle vertical type snow-retaining structures (2) are symmetrically arranged on two sides of each high vertical type snow-retaining structure (1), two low vertical type snow-retaining structures (3) are also symmetrically arranged on two sides of each high vertical type snow-retaining structure (1), each middle vertical type snow-retaining structure (2) is positioned between each high vertical type snow-retaining structure (1) and each low vertical type snow-retaining structure (3), the height of each high vertical type snow-retaining structure (1) is higher than that of each middle vertical type snow-retaining structure (2), and the height of each middle vertical type snow-retaining structure (2) is higher than that of each low vertical type snow-retaining structure (3); all snow blocking structures comprise frames formed by two upright posts and two transverse pull rods, three rows of snow blocking net pieces with the porosity sequentially reduced are arranged in the frames in the high vertical type snow blocking structure (1) from top to bottom, two rows of snow blocking net pieces with the porosity sequentially reduced are arranged in the frames in the neutral type snow blocking structure (2) from top to bottom, and one row of snow blocking net pieces are arranged in the frames in the low vertical type snow blocking structure (3);
the high vertical snow retaining structure (1) comprises a first upright post (5) and a second upright post (10) which are vertically arranged, the top end of the first upright post (5) is fixedly connected with the top end of the second upright post (10) through a first upper transverse pull rod (8), the middle part of the first upright post (5) is fixedly connected with the middle part of the second upright post (10) through a first lower transverse pull rod (13), two first vertical support rods (7) are arranged between the first upright post (5) and the second upright post (10) side by side, the upper ends of the first vertical support rods (7) and the upper ends of the second vertical support rods (9) are fixedly connected with the first upper transverse pull rod (8), the lower ends of the first vertical support rods (7) and the lower ends of the second vertical support rods (9) are fixedly connected with the first lower transverse pull rod (13), two first transverse support rods (9) are arranged between the first upper transverse pull rod (8) and the first lower transverse pull rod (13) side by side, one end of each first transverse support rod (9) is fixedly connected, the other end of the first transverse supporting rod (9) is fixedly connected with the second upright post (10); the first upright post (5), the second upright post (10), the first upper transverse pull rod (8) and the first lower transverse pull rod (13) enclose a frame, the frame is divided into six square spaces with the same size by two first vertical support rods (7) and two first transverse support rods (9) arranged in the frame, three of the six square spaces form one row, an upper row and a lower row are formed in the other frame, second snow blocking meshes (11) are arranged in the three square spaces in the upper row, and third snow blocking meshes (12) are arranged in the three square spaces in the lower row;
the neutral snow retaining structure (2) comprises a third upright column (14) and a fourth upright column (17) which are vertically arranged side by side, the top end of the third upright column (14) is fixedly connected with the top end of the fourth upright column (17) through a second upper transverse pull rod (15), and the middle part of the third upright column (14) is fixedly connected with the middle part of the fourth upright column (17) through a second lower transverse pull rod (19); two second vertical support rods (16) are arranged between the third upright column (14) and the fourth upright column (17) side by side, the upper ends of the second vertical support rods (16) are fixedly connected with a second upper transverse pull rod (15), the lower ends of the second vertical support rods (16) are fixedly connected with a second lower transverse pull rod (19), a second transverse support rod (18) is arranged between the second upper transverse pull rod (15) and the second lower transverse pull rod (19), one end of the second transverse support rod (18) is fixedly connected with the third upright column (14), and the other end of the second transverse support rod (18) is fixedly connected with the fourth upright column (17); a third upright column (14), a fourth upright column (17), a second transverse support rod (18 and two second vertical support rods (16) form an upper row and a lower row, each row of three square spaces are surrounded by three square spaces, a second snow blocking mesh sheet (11) is arranged in each of the three square spaces positioned above the upper row, and a third snow blocking mesh sheet (12) is arranged in each of the three square spaces positioned below the lower row;
the low vertical snow retaining structure (3) comprises a fifth upright post (20) and a sixth upright post (23) which are vertically arranged side by side, the top end of the fifth upright post (20) is fixedly connected with the top end of the sixth upright post (23) through a third upper transverse pull rod (21), the middle part of the fifth upright post (20) is fixedly connected with the middle part of the sixth upright post (23) through a third lower transverse pull rod (24), two third vertical support rods (22) are arranged between the fifth upright post (20) and the sixth upright post (23) side by side, the upper ends of the third vertical support rods (22) are fixedly connected with the third upper transverse pull rod (21), and the lower ends of the third vertical support rods (22) are fixedly connected with the third lower transverse pull rod (24); and a third frame is surrounded by the fifth upright post (20), the sixth upright post (23), the third upper transverse pull rod (21) and the third lower transverse pull rod (24), the third frame is divided into three square frames arranged side by two third vertical support rods (22) in the third frame, and a third snow blocking mesh (12) is arranged in each square frame.
2. The waved combined snow-barrier according to claim 1, characterized in that the porosity of the first snow-barrier meshes (6) is greater than the porosity of the second snow-barrier meshes (11), the porosity of the second snow-barrier meshes (11) being greater than the porosity of the third snow-barrier meshes (12).
3. The wave-shaped combined snow-fencing wall according to claim 1 or 2, characterised in that the first (6), the second (11) and the third (12) snow-fencing meshes are made of PE mesh.
4. The wave-shaped combined snow-fending wall as claimed in claim 1, wherein the distance between the neutral snow-fending structure (2) and the low vertical snow-fending structure (3) is 5-10 times the height of the low vertical snow-fending structure (3); the distance between the high vertical snow retaining structure (1) and the middle vertical snow retaining structure (2) is 5-10 times of the height of the middle vertical snow retaining structure (2).
5. The wave-shaped combined snow-blocking wall as claimed in claim 1, wherein the distance between two adjacent snow-blocking units is 10-20 m.
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| CN201910652821.6A CN110318347B (en) | 2019-07-19 | 2019-07-19 | Wave combination formula snow wall |
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