CN108797407B - Railway sound barrier composite material unit plate - Google Patents
Railway sound barrier composite material unit plate Download PDFInfo
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- CN108797407B CN108797407B CN201810608954.9A CN201810608954A CN108797407B CN 108797407 B CN108797407 B CN 108797407B CN 201810608954 A CN201810608954 A CN 201810608954A CN 108797407 B CN108797407 B CN 108797407B
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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
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0011—Plank-like elements
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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
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
- E01F8/0064—Perforated plate or mesh, e.g. as wall facing
- E01F8/007—Perforated plate or mesh, e.g. as wall facing with damping material
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- Civil Engineering (AREA)
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
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Abstract
A railway sound barrier composite material unit plate relates to the technical field of sound barriers. The sound barrier unit plate is designed for mainly solving the problems that the existing sound barrier unit plate is easy to deform, the sound insulation amount is small and the like. The sound absorption cotton comprises a high-performance hydraulic inorganic nonmetallic material backboard, an aluminum alloy section frame, an aluminum alloy punching panel and sound absorption cotton covered with hydrophobic non-woven fabrics. The aluminum alloy section frame consists of an upper beam, a lower beam, a left sealing plate and a right sealing plate which are connected together; two groups of I-shaped combined keels are arranged in the aluminum alloy section frame, the two I-shaped combined keels divide the frame into three blocks, and sound absorption cotton covered with hydrophobic non-woven fabrics is arranged in each of the three blocks; the upper end and the lower end of the aluminum alloy punching panel are respectively fixed on J-shaped folded plates of the upper beam and the lower beam; and a high-performance hydraulic inorganic nonmetallic material backboard is arranged in a rectangular area surrounded by rectangular concrete backboard pouring grooves of the upper beam, the lower beam, the left sealing plate and the right sealing plate. Its advantages are high sound insulation and not deforming easily.
Description
Technical Field
The utility model relates to the technical field of sound barriers, in particular to a railway sound barrier composite material unit plate.
Background
The railway sound barrier is a special facility for preventing and treating railway noise, has certain protection and landscape effects, and mainly comprises an integral type and a plugboard type, and is generally in a plugboard type.
The inserting plate type railway sound barrier is formed by combining H-shaped steel upright posts and unit plates, namely a plurality of sound barrier unit plates are inserted between the two H-shaped steel upright posts, noise is prevented and treated on two sides of a railway through sound absorption and sound insulation, the structure is firm so as to play a role in protection, and the appearance combination is attractive so as to form a landscape effect.
The existing flashboard type railway sound barrier unit board has two main types of metal and nonmetal.
1, a metal sound barrier;
the box body is generally made of aluminum alloy materials, and sound absorption cotton or other sound absorption materials are arranged in the box body. There are mainly two common forms:
(1) One or two aluminum plates are folded into a box structure, wherein one side of the box structure is an aluminum alloy panel with the perforation rate of more than 25% and faces the inner side of a railway, the other side of the box structure is a closed aluminum alloy backboard and faces the outer side of the railway, and the inside of the box structure is formed by sound absorption cotton attached to a cement thin plate and covered with hydrophobic non-woven glass fiber cloth. Such as: the utility model patent number 200920096902.4 named as 'high-speed railway metal sound barrier unit board' has the defects of complex processing technology, poor integrity, high manufacturing cost, easy deformation and short service life.
(2) The other is a box-shaped structure formed by combining an aluminum plate and a special aluminum profile, wherein the cement-free thin plate is formed by inserting a plurality of sound absorption cottons covered with hydrophobic non-woven glass fiber cloth into preset grooves of the aluminum profile. Such as: the utility model patent number is 201320395779.2 and the name is a metal sound barrier unit board for a high-speed railway; the defects are that: high cost, small sound insulation, poor integrity, easy deformation and short service life.
2, nonmetallic sound barriers, two common types:
one is a carrier and protective structure using inorganic nonmetallic materials as sound absorption materials, and mainly has three forms:
(1) One common method is to cast a box body by adopting reinforced concrete, and arrange sound absorption cotton inside, wherein one side of the box body is a panel with a penetration rate of more than 25% and faces the inner side of a railway, the other side of the box body is a closed back plate and faces the outer side of the railway, and the interior of the box body is composed of sound absorption cotton or other sound absorption materials covered with hydrophobic non-woven glass fiber cloth. The defects are that: low strength, high surface density and short service life.
(2) And pouring prestressed reinforced concrete into the external rigid sound absorption material of the backboard with the prestressed ribs to form the rib plate type sound barrier. The method has the advantages of complex process, easy damage of external sound absorption materials, poor impact resistance, high surface density, high manufacturing cost and poor low-frequency sound absorption effect. Such as: the patent number 201310578239.2 is entitled "prestressed concrete ribbed sound barrier cell plate".
(3) The prestressed reinforced concrete is adopted to pour the backboard with the cavity so as to improve the sound absorption coefficient and form the hollow plate type sound barrier, and the method has the defects that the process is very complex, the surface density is high, the manufacturing cost is higher, the external sound absorption material is easy to damage, the shock resistance is poor and the like although the sound absorption coefficient is compensated. Such as patent application 201711403581.3 entitled "hollow plate type sound barrier cell plate".
The other nonmetal sound barrier is formed by taking a Polycarbonate (PC) plate as a screen body and an aluminum alloy frame as a main material, has no sound absorption function, and can be seen through, and has the defects of poor bending fatigue strength, easy generation of stress cracking, poor heat sealing property and ultraviolet resistance, and easy aging after being placed outdoors for a long time.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the high-speed railway sound barrier composite material unit plate which has the advantages of good integrity, stable structure, low manufacturing cost, large sound insulation, difficult deformation and long service life.
The above object is achieved in that: the sound absorption cotton comprises a high-performance hydraulic inorganic nonmetallic material backboard, an aluminum alloy section frame, an aluminum alloy punching panel and sound absorption cotton covered with hydrophobic non-woven fabrics.
The aluminum alloy profile frame consists of an upper beam, a lower beam, a left sealing plate and a right sealing plate which are connected together, wherein the left sealing plate and the right sealing plate are respectively connected with the left end and the right end of the upper beam and the right end of the lower beam, and the upper beam, the lower beam, the left sealing plate and the right sealing plate are all formed by profiles; two groups of I-shaped combined keels are arranged in the aluminum alloy profile frame, the I-shaped combined keels are formed by connecting a main keel and an auxiliary keel together through pull rivets, the upper ends of the I-shaped combined keels are connected with an upper beam, the lower ends of the I-shaped combined keels are connected with a lower beam, and the two I-shaped combined keels divide the inner part of the frame into three blocks;
the upper beam and the lower beam are identical in structure and are oppositely arranged, the cross-sectional structure of the upper beam and the lower beam is a first rectangular sound absorption cotton slot with an opening facing the inner side of the frame, two sides of the first rectangular sound absorption cotton slot are respectively connected with a first rectangular slot with the slot bottom facing the inner side of the frame and the opening facing the outer side of the frame, the other side of one first rectangular slot is connected with a first rectangular concrete back plate pouring slot with the opening facing the inner side of the frame, and the opening of the first rectangular concrete back plate pouring slot and the slot bottom of the first rectangular slot are on the same horizontal plane. The opening of the other first rectangular groove is provided with a J-shaped folded plate connected with the side edge of the first rectangular groove, and the upper end and the lower end of the aluminum alloy punched panel are respectively fixed on the J-shaped folded plates of the upper beam and the lower beam; the aluminum alloy punching panel faces one side of the railway.
The left sealing plate and the right sealing plate are identical in structure and are oppositely arranged, and the cross section structure of the left sealing plate and the right sealing plate is as follows: the two sides of the second rectangular sound absorption cotton slot are connected with second rectangular slots with bottoms facing the inner side of the frame and the openings facing the outer side of the frame, and one surface of the bottom of one second rectangular slot facing the inner side of the frame is connected with a second rectangular concrete backboard pouring slot; the position of the second rectangular concrete back plate pouring groove corresponds to the position of the first rectangular concrete back plate pouring groove of the upper beam and the lower beam. And a high-performance hydraulic inorganic nonmetallic material backboard is arranged in a rectangular area surrounded by rectangular concrete backboard pouring grooves of the upper beam, the lower beam, the left sealing plate and the right sealing plate.
The I-shaped combined keel comprises a main keel and an auxiliary keel.
The main joist comprises two mutually perpendicular rectangular grooves, namely a first main groove and a second main groove, wherein the groove bottom plate of the first main groove is perpendicular to the groove bottom plate of the second main groove, and after the groove bottom plate of the first main groove is connected with the groove bottom plate of the second main groove, the groove bottom plate of the first main groove divides the groove bottom plate of the second main groove into two parts with the same length, and the side plate of the first main groove is connected with the side edge perpendicular to the side edge of the groove.
The cross section of the auxiliary keel is L-shaped and comprises a vertical side and a straight side, the straight side is divided into two sections, the first section is a straight side connected with the vertical side, the second section is connected with the first section and has a height higher than one wall thickness of the first section, the second section is consistent with the length of a side plate of the first main groove, the second section is connected with the side plate of the first main groove by a pull rivet, a first auxiliary groove with the opposite dimension with the direction of the first main groove is formed after the connection, and the second section and the first auxiliary groove have a common groove bottom plate; the auxiliary keel and the side edge of the first main groove are combined into a second auxiliary groove;
the first main groove and the first auxiliary groove are both third sound absorption cotton slots, sound absorption cotton covered with hydrophobic non-woven fabrics is arranged in three blocks divided by two pairs of combined keels in the frame, wherein the upper end of the sound absorption cotton covered with hydrophobic non-woven fabrics in the left block is inserted into the first rectangular sound absorption cotton slot of the upper beam, the lower end of the sound absorption cotton is inserted into the sound absorption cotton slot of the lower beam, the left end of the sound absorption cotton slot is inserted into the second rectangular sound absorption cotton slot of the left sealing plate, and the right end of the sound absorption cotton is inserted into the first auxiliary groove of the main keels;
the upper end of the sound absorbing cotton covered with the hydrophobic non-woven fabric in the right block is inserted into a first rectangular sound absorbing cotton slot of the upper beam, the lower end of the sound absorbing cotton slot of the lower beam is inserted into the sound absorbing cotton slot of the right sealing plate, the right end of the sound absorbing cotton slot is inserted into the sound absorbing cotton slot of the right sealing plate, and the left end of the sound absorbing cotton slot is inserted into a first main groove of the main keel;
the upper end of the sound absorption cotton which is positioned in the middle block and covered with the hydrophobic non-woven fabric is inserted into a first rectangular sound absorption cotton slot of the upper beam, the lower end of the sound absorption cotton is inserted into a sound absorption cotton slot of the lower beam, the left end and the right end of the sound absorption cotton slot are respectively propped against a slot bottom plate of a first main slot of the installed main keel, then the two auxiliary keels are connected with the main keels by using pull rivets, the main keels are connected with the upper beam and the lower beam by using tail turning screws, and the sound absorption cotton is fixed in the first auxiliary slots formed after the auxiliary keels on the two sides of the sound absorption cotton quilt are combined with the main keels.
The manufacturing process of the high-performance hydraulic inorganic nonmetallic material backboard comprises the following steps: and horizontally placing an aluminum alloy profile frame, enabling a rectangular area surrounded by pouring grooves of rectangular concrete back plates of an upper beam, a lower beam, a left sealing plate and a right sealing plate to face downwards, paving a bottom template at the bottom of the rectangular area, pouring high-performance hydraulic inorganic nonmetallic self-leveling slurry into the rectangular area, paving a plurality of layers of glass fiber nets in the rectangular area when pouring the height of 10mm, enabling the periphery of each glass fiber net to be larger than the bottom template, inserting the edges of each glass fiber net into the pouring grooves of the aluminum alloy profile, continuously pouring the high-performance inorganic nonmetallic self-leveling slurry to fully fill and level the pouring grooves of the back plates, and obtaining the high-performance hydraulic inorganic nonmetallic material back plate after the slurry is coagulated and hardened.
The high-performance hydraulic inorganic nonmetallic self-leveling slurry comprises the following materials in parts by weight:
and (3) cement: (0.315-1.25) mm graded sand: HT-S type sand reinforcing plasticizing stabilizer: water = 1:1: (0.01-0.02): (0.27-0.29); the HT-S type mortar reinforcing plasticizing stabilizer is provided for Liaoyang constant passage new material Co.
When the concrete is poured, the needed patterns and characters can be preset on the bottom template. The structure of the aluminum alloy punching panel is that a plurality of holes are formed on the aluminum alloy panel.
The utility model has the advantages that: the backboard is formed by pouring high-performance hydraulic inorganic nonmetallic slurry, and a plurality of layers of glass fiber net are adopted for reinforcement during pouring, so that the backboard has the advantages of low cost, good integrity, large sound insulation, difficult deformation and long service life. The second groove of the combined keel is of a split structure, so that the installation of the sound absorption cotton in the middle frame is facilitated. Because the required patterns and characters can be preset on the bottom template when the concrete is poured, the expected landscape effect and the advertising and propaganda function can be formed.
Drawings
FIG. 1 is a schematic top view of the present utility model;
FIG. 2 is a schematic side elevational view of the present utility model;
FIG. 3 is a schematic view of the structure of the upper beam in the present utility model;
FIG. 4 is a schematic view of the left seal plate of the present utility model;
FIG. 5 is a schematic view of the structure of the composite keel in the form of an "I" in the present utility model;
FIG. 6 is a schematic view of the structure of the main runner of the "I" shaped composite runner of the present utility model;
fig. 7 is a schematic view of the structure of the cross runners of the "i" shaped composite runner of the present utility model.
Detailed Description
Referring to fig. 1 and 2, it comprises a high-performance hydraulic inorganic nonmetallic material back plate 1, an aluminum alloy section frame, an aluminum alloy punching panel 2, and sound-absorbing cotton 3 covered with hydrophobic non-woven fabrics.
The aluminum alloy profile frame consists of an upper beam 4, a lower beam 5, a left sealing plate 6 and a right sealing plate 7 which are connected together, wherein the left sealing plate and the right sealing plate are respectively connected with the left end and the right end of the upper beam and the right end of the lower beam, and the upper beam, the lower beam, the left sealing plate and the right sealing plate are all formed by profiles;
referring to fig. 3, the upper beam and the lower beam are identical in structure and are oppositely arranged, the cross-section structure of the upper beam and the lower beam is a first rectangular sound absorption cotton slot 41 with an opening facing the inner side of the frame, two sides of the first rectangular sound absorption cotton slot are respectively connected with a first rectangular slot 42 with a slot bottom facing the inner side of the frame and an opening facing the outer side of the frame, the other side of one first rectangular slot is connected with a first rectangular concrete back plate pouring slot 43 with an opening facing the inner side of the frame, and the opening of the first rectangular concrete back plate pouring slot and the slot bottom of the first rectangular slot are on the same horizontal plane. The opening of the other first rectangular groove is provided with a J-shaped folded plate 44 connected with the side edge of the first rectangular groove, and the upper end and the lower end of the aluminum alloy punched panel 2 are respectively fixed on the J-shaped folded plates of the upper beam and the lower beam; the aluminum alloy punching panel faces one side of the railway.
Referring to fig. 4, the left sealing plate and the right sealing plate have the same structure and are oppositely arranged, and the cross section structure is as follows: the two sides of the second rectangular sound absorption cotton slot are connected with a second rectangular slot 62 with the slot bottom facing the inner side of the frame and the opening facing the outer side of the frame, and one surface of the slot bottom of one second rectangular slot facing the inner side of the frame is connected with a second rectangular concrete back plate pouring slot 63; the position of the second rectangular concrete back plate pouring groove corresponds to the position of the first rectangular concrete back plate pouring groove of the upper beam and the lower beam. And a high-performance hydraulic inorganic nonmetallic material backboard is arranged in a rectangular area surrounded by rectangular concrete backboard pouring grooves of the upper beam, the lower beam, the left sealing plate and the right sealing plate.
Referring to fig. 5, two groups of h-shaped combined keels 8 are arranged in the aluminum alloy profile frame, each h-shaped combined keel is formed by connecting a main keel and an auxiliary keel together through a pull rivet, the upper ends of the h-shaped combined keels are connected with an upper beam, the lower ends of the h-shaped combined keels are connected with a lower beam, and the two h-shaped combined keels divide the inner part of the frame into three blocks.
The I-shaped combined keel 8 comprises a main keel 81 and an auxiliary keel 82.
Referring to fig. 6, the main runner is composed of two rectangular grooves perpendicular to each other, namely, a first main groove 811 and a second main groove 812, the groove bottom plate 8111 of the first main groove is perpendicular to the groove bottom plate of the second main groove, and after the groove bottom plate of the first main groove is connected with the groove bottom plate of the second main groove, the groove bottom plate of the first main groove divides the groove bottom plate of the second main groove into two parts with the same length, and the side plate 8112 of the first main groove is connected with the side edge 8113 perpendicular thereto.
Referring to fig. 7, the cross section of the auxiliary keel 82 is in an "L" shape, and includes a vertical edge 821 and a straight edge, the straight edge is divided into two sections, the first section is a straight edge 822 connected with the vertical edge, the second section straight edge 823 is connected with the first section but has a height higher than a wall thickness of the first section, the second section straight edge is consistent with the edge plate length of the first main groove, the second section straight edge 823 is connected with the edge plate 8112 of the first main groove by a blind rivet, a first auxiliary groove 813 with a size consistent with the opposite direction of the first main groove 811 is formed after the connection, and the first auxiliary groove 813 and the second auxiliary groove have a common groove bottom 8111; the secondary keel is combined with the side 8113 of the first primary recess into a second secondary recess 814;
the first main groove and the first auxiliary groove are sound absorption cotton slots, sound absorption cotton covered with hydrophobic non-woven fabrics is arranged in three blocks divided by two pairs of combined keels in the frame, the upper end of the sound absorption cotton covered with hydrophobic non-woven fabrics in the left block is inserted into the first rectangular sound absorption cotton slot of the upper beam, the lower end is inserted into the sound absorption cotton slot of the lower beam, the left end is inserted into the second rectangular sound absorption cotton slot of the left sealing plate, and the right end is inserted into the first auxiliary groove of the main keels;
the upper end of the sound absorption cotton covered with the hydrophobic non-woven fabric in the right block is inserted into a first rectangular sound absorption cotton slot of the upper beam, the lower end of the sound absorption cotton slot of the lower beam is inserted into a second rectangular sound absorption cotton slot of the right sealing plate, and the left end of the sound absorption cotton slot is inserted into a first main groove of the main keel;
the upper end of the sound absorption cotton which is positioned in the middle block and covered with the hydrophobic non-woven fabric is inserted into a first rectangular sound absorption cotton slot of the upper beam, the lower end of the sound absorption cotton is inserted into a sound absorption cotton slot of the lower beam, the left end and the right end of the sound absorption cotton slot are respectively propped against a slot bottom plate of a first main slot of the installed main keel, then the two auxiliary keels are connected with the main keels by using pull rivets, the main keels are connected with the upper beam and the lower beam by using tail turning screws, and the sound absorption cotton is fixed in the first auxiliary slots formed after the auxiliary keels on the two sides of the sound absorption cotton quilt are combined with the main keels.
The manufacturing process of the high-performance hydraulic inorganic nonmetallic material backboard comprises the following steps: and horizontally placing an aluminum alloy profile frame, enabling a rectangular area surrounded by pouring grooves of rectangular concrete back plates of an upper beam, a lower beam, a left sealing plate and a right sealing plate to face downwards, paving a bottom template at the bottom of the rectangular area, pouring high-performance hydraulic inorganic nonmetallic self-leveling slurry into the rectangular area, paving a plurality of layers of glass fiber nets in the rectangular area when pouring the height of 10mm, enabling the periphery of each glass fiber net to be larger than the bottom template, inserting the edges of each glass fiber net into the pouring grooves of the aluminum alloy profile, continuously pouring the high-performance inorganic nonmetallic self-leveling slurry to fully fill and level the pouring grooves of the back plates, and obtaining the high-performance hydraulic inorganic nonmetallic material back plate after the slurry is coagulated and hardened.
The high-performance hydraulic inorganic nonmetallic self-leveling slurry comprises the following materials in parts by weight:
and (3) cement: (0.315-1.25) mm graded sand: HT-S type sand reinforcing plasticizing stabilizer: water = 1:1: (0.01 or 0.02): (0.27 or 0.28 or 0.29); the HT-S type mortar reinforcing plasticizing stabilizer is provided for Liaoyang constant passage new material Co.
When the concrete is poured, the needed patterns and characters can be preset on the bottom template. The structure of the aluminum alloy punching panel is that a plurality of holes are formed on the aluminum alloy panel.
Claims (5)
1. A railway sound barrier composite material unit plate is characterized in that: the sound absorption cotton comprises a high-performance hydraulic inorganic nonmetallic material backboard (1), an aluminum alloy section frame, an aluminum alloy punching panel (2) and sound absorption cotton (3) covered with hydrophobic non-woven fabrics;
the aluminum alloy profile frame consists of an upper beam (4), a lower beam (5), a left sealing plate (6) and a right sealing plate (7) which are connected together, wherein the left sealing plate (6) and the right sealing plate (7) are respectively connected with the left end and the right end of the upper beam (4) and the right end of the lower beam (5), and the upper beam (4), the lower beam (5), the left sealing plate (6) and the right sealing plate (7) are all formed by profiles; the upper beam (4) and the lower beam (5) are identical in structure and are oppositely arranged, the cross-section structure of the upper beam is a first rectangular sound absorption cotton slot (41) with an opening facing the inner side of the frame, two sides of the first rectangular sound absorption cotton slot (41) are respectively connected with a first rectangular slot (42) with the slot bottom facing the inner side of the frame and the opening facing the outer side of the frame, the other side of one first rectangular slot (42) is connected with a first rectangular concrete back plate pouring slot (43) with the opening facing the inner side of the frame, and the opening of the first rectangular concrete back plate pouring slot (43) and the slot bottom of the first rectangular slot (42) are on the same horizontal plane; the opening of the other first rectangular groove (42) is provided with a J-shaped folded plate (44) connected with the side edge of the first rectangular groove, and the upper end and the lower end of the aluminum alloy punching panel (2) are respectively fixed on the J-shaped folded plate (44) of the upper beam (4) and the lower beam (5);
the left sealing plate (6) and the right sealing plate (7) are identical in structure and are oppositely arranged, and the cross section structure is as follows: the concrete back plate pouring device comprises a second rectangular sound absorption cotton slot (61) with an opening facing the inner side of the frame, wherein both sides of the second rectangular sound absorption cotton slot (61) are connected with a second rectangular slot (62) with the slot bottom facing the inner side of the frame and the opening facing the outer side of the frame, and one side of the slot bottom of one second rectangular slot (62) facing the inner side of the frame is connected with a second rectangular concrete back plate pouring slot (63); a rectangular area surrounded by rectangular concrete backboard pouring grooves of an upper beam (4), a lower beam (5), a left sealing plate (6) and a right sealing plate (7) is provided with a high-performance hydraulic inorganic nonmetallic material backboard (1);
the manufacturing process of the high-performance hydraulic inorganic nonmetallic material backboard (1) comprises the following steps: horizontally placing an aluminum alloy profile frame, enabling a rectangular area surrounded by rectangular concrete backboard pouring grooves of an upper beam (4), a lower beam (5), a left sealing plate (6) and a right sealing plate (7) to face downwards, paving a bottom template at the bottom of the rectangular area, pouring high-performance hydraulic inorganic nonmetallic self-leveling slurry into the rectangular area, paving a plurality of layers of glass fiber nets in the rectangular area when pouring is performed for 10mm in height, inserting the edges of the glass fiber nets into the pouring grooves of the aluminum alloy profile, continuously pouring the high-performance hydraulic inorganic nonmetallic self-leveling slurry to fully fill and level the backboard pouring grooves, and obtaining the high-performance hydraulic inorganic nonmetallic material backboard (1) after the slurry is coagulated and hardened;
the high-performance hydraulic inorganic nonmetallic self-leveling slurry comprises the following materials in parts by weight:
and (3) cement: (0.315-1.25) mm graded sand: HT-S type sand reinforcing plasticizing stabilizer: water = 1:1: (0.01-0.02): (0.27-0.29).
2. The railway sound barrier composite unit panel of claim 1, wherein: two groups of I-shaped combined keels (8) are arranged in the aluminum alloy profile frame, the upper ends of the I-shaped combined keels (8) are connected with the upper beam (4), the lower ends of the I-shaped combined keels (8) are connected with the lower beam (5), and the two I-shaped combined keels (8) divide the inner part of the frame into three blocks; the I-shaped combined keel (8) comprises a main keel (81) and an auxiliary keel (82).
3. The railway sound barrier composite unit panel of claim 2, wherein: the main joist (81) is composed of two mutually perpendicular rectangular grooves, namely a first main groove (811) and a second main groove (812), the groove bottom plate (8111) of the first main groove (811) is perpendicular to the groove bottom plate of the second main groove (812), after the groove bottom plate (8111) of the first main groove (811) is connected with the groove bottom plate of the second main groove (812), the groove bottom plate (8111) of the first main groove (811) divides the groove bottom plate of the second main groove (812) into two parts with the same length, and the side plate (8112) of the first main groove (811) is connected with the side edge (8113) perpendicular to the side edge.
4. The railway sound barrier composite unit panel of claim 2, wherein: the cross section of the auxiliary keel (82) is L-shaped and comprises a vertical edge (821) and a straight edge, the straight edge is divided into two sections, the first section is a straight edge (822) connected with the vertical edge (821) and a second section straight edge (823) connected with the first section, the second section straight edge (823) is connected with an edge plate (8112) of a first main groove (811) by a pull rivet, and a first auxiliary groove (813) opposite to the first main groove (811) in direction is formed after the connection, and the two sections are provided with a common groove bottom plate (8111); the auxiliary keel (82) and the side edge (8113) of the first main groove (811) are combined into a second auxiliary groove (814);
the first main groove (811) and the first auxiliary groove (813) are sound absorption cotton slots, sound absorption cotton (3) covered with hydrophobic non-woven fabrics is arranged in three blocks divided by two pairs of combined keels in the frame, the upper end of the sound absorption cotton (3) covered with hydrophobic non-woven fabrics in the left block is inserted into the first rectangular sound absorption cotton slot (41) of the upper beam (4), the lower end is inserted into the sound absorption cotton slot of the lower beam (5), the left end is inserted into the second rectangular sound absorption cotton slot (61) of the left sealing plate (6), and the right end is inserted into the first auxiliary groove (813) of the main keel (81);
the upper end of the sound absorbing cotton (3) which is positioned in the right block and covered with the hydrophobic non-woven fabric is inserted into a first rectangular sound absorbing cotton slot (41) of the upper beam (4), the lower end of the sound absorbing cotton slot is inserted into a sound absorbing cotton slot of the lower beam (5), the right end of the sound absorbing cotton slot is inserted into a second rectangular sound absorbing cotton slot of the right sealing plate (7), and the left end of the sound absorbing cotton slot is inserted into a first main groove (811) of the main keel (81);
the upper end of the sound absorbing cotton (3) which is positioned in the middle block and covered with hydrophobic non-woven fabric is inserted into a first rectangular sound absorbing cotton slot (41) of the upper beam (4), the lower end of the sound absorbing cotton is inserted into a sound absorbing cotton slot of the lower beam (5), the left end and the right end of the sound absorbing cotton are respectively propped against a groove bottom plate (8111) of a first main groove (811) of the installed main keel (81), then the two auxiliary keels (82) are connected with the main keel (81) by using a pull rivet, the main keel (81) is connected with the upper beam and the lower beam by using tail turning screws, and the sound absorbing cotton is fixed in the first auxiliary groove (813) formed after the auxiliary keels (82) on two sides of the sound absorbing cotton are combined with the main keel (81).
5. The railway sound barrier composite unit panel of claim 1, wherein: the required patterns and characters are preset on the bottom template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608954.9A CN108797407B (en) | 2018-06-13 | 2018-06-13 | Railway sound barrier composite material unit plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608954.9A CN108797407B (en) | 2018-06-13 | 2018-06-13 | Railway sound barrier composite material unit plate |
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| CN108797407A CN108797407A (en) | 2018-11-13 |
| CN108797407B true CN108797407B (en) | 2023-08-18 |
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| CN110258373B (en) * | 2019-07-17 | 2024-02-02 | 辽阳沈铁小屯轨枕水泥有限公司 | High-speed railway sound barrier metal composite high-efficiency sound absorption and insulation plate |
| CN111705686B (en) * | 2020-06-01 | 2022-09-16 | 中国铁路经济规划研究院有限公司 | Folded plate buckling type railway metal sound barrier unit plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5426267A (en) * | 1992-11-05 | 1995-06-20 | Underhill; George R. | Highway and airport sound barriers |
| CN106468045A (en) * | 2016-04-29 | 2017-03-01 | 中国铁道科学研究院节能环保劳卫研究所 | A kind of elastic damping formula railway metal sound barrier and combinations thereof device |
| CN106758900A (en) * | 2016-12-27 | 2017-05-31 | 中国铁道科学研究院节能环保劳卫研究所 | Damping system of damping type railway metal sound barrier |
| CN208346665U (en) * | 2018-06-13 | 2019-01-08 | 中国铁路设计集团有限公司 | A kind of railway sound barrier composite material cell board |
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2018
- 2018-06-13 CN CN201810608954.9A patent/CN108797407B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5426267A (en) * | 1992-11-05 | 1995-06-20 | Underhill; George R. | Highway and airport sound barriers |
| CN106468045A (en) * | 2016-04-29 | 2017-03-01 | 中国铁道科学研究院节能环保劳卫研究所 | A kind of elastic damping formula railway metal sound barrier and combinations thereof device |
| CN106758900A (en) * | 2016-12-27 | 2017-05-31 | 中国铁道科学研究院节能环保劳卫研究所 | Damping system of damping type railway metal sound barrier |
| CN208346665U (en) * | 2018-06-13 | 2019-01-08 | 中国铁路设计集团有限公司 | A kind of railway sound barrier composite material cell board |
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