CN212052398U - Novel stacked series-type prestressed sound barrier - Google Patents
Novel stacked series-type prestressed sound barrier Download PDFInfo
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- CN212052398U CN212052398U CN201922103857.7U CN201922103857U CN212052398U CN 212052398 U CN212052398 U CN 212052398U CN 201922103857 U CN201922103857 U CN 201922103857U CN 212052398 U CN212052398 U CN 212052398U
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Abstract
The utility model relates to a novel series connection prestressed sound protective screen superposes, the bottom plate is fixed on pre-buried base member through pre-buried bolt and leveling subassembly, be equipped with the prestressing force subassembly on the bottom plate, a plurality of sound cell boards of folding are piled up vertically pass through prestressing force subassembly series connection is in the same place and apply the stretch-draw prestressing force and press from both sides tightly, controls simultaneously and realizes sealing the seam between the adjacent sound cell board of inhaling about through the I shape gap seal section bar that inserts aluminium matter between the adjacent sound cell board gap, adjacent about sound cell board gap department top sets up the top buckle and fixes through the bolt. The welding device is simple in structure, light and flexible in field installation, steel is saved, the process of welding the bottom plate by the H-shaped steel stand column is cancelled, the environment-friendly idea of green manufacturing of enterprises is met, the safety problem of uneven welding quality of I-level welding seams of the H-shaped steel stand column is solved, meanwhile, the material supply period can be greatly shortened, and the practical problem of tight material supply period of sound barrier products is solved.
Description
Technical Field
The utility model relates to a road sound barrier technical field especially relates to a novel series connection formula prestressing force sound barrier superposes.
Background
The sound barrier is mainly used for sound insulation and noise reduction of highways, expressways, overhead composite roads and other noise sources. Traditional picture peg formula sound barrier uses H shaped steel stand as the intermediate junction skeleton, through the pre-buried bolted connection H shaped steel stand in ground, adopts the rubber strip to seal between sound barrier board and the H shaped steel stand. The process of welding the base plate by the H-shaped steel stand column has the safety problem of uneven welding quality of I-level welding seams, consumes a large amount of steel, is not in accordance with the environment-friendly idea of green manufacturing of enterprises, and wastes time and labor in field installation. In view of the above problem, the utility model provides a novel stack serial-type prestressing force sound barrier, simple structure, the installation is light, nimble, has cancelled traditional H shaped steel stand, has not only saved steel and has cancelled the technology of H shaped steel stand welded bottom plate, accords with the environmental protection theory of green manufacturing of enterprise, has still solved the uneven safety problem of H shaped steel stand I level welding seam welding quality, can shorten the supply of material cycle greatly simultaneously, has solved the tight realistic problem of sound barrier product supply of material cycle.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a novel superpose serial-type prestressing force sound barrier is provided, moreover, the steam generator is simple in structure, the installation is light, in a flexible way, traditional H shaped steel stand has been cancelled, not only save steel but also the technology of H shaped steel stand welding bottom plate has been cancelled, accord with the environmental protection theory of green manufacturing of enterprise, still solved the uneven safety problem of H shaped steel stand I level welding seam welding quality, can shorten the supply of material cycle greatly simultaneously, solved the tight realistic problem of sound barrier product supply of material cycle.
In order to solve the above problems, the utility model adopts the following technical proposal:
a novel superposed series type prestressed sound barrier comprises a pre-buried base body, a bottom plate fixedly arranged above the pre-buried base body through pre-buried bolts and leveling assemblies, and a plurality of sound absorption unit plates connected above the bottom plate in series through the prestressed assemblies, wherein grooves corresponding to the bottom plate are formed in the upper surface of the pre-buried base body, the bottom plate is positioned right below a gap between two adjacent groups of sound absorption unit plates on the left and right, and vertical stop blocks are arranged on the bottom plate on two sides of the sound absorption unit plates;
the left side and the right side of the bottom plate are respectively provided with at least one group of the prestress assemblies, each prestress assembly comprises a prestress connecting rod, the two ends of each prestress connecting rod are provided with external threads, the left side and the right side of the bottom plate are provided with stepped holes, the lower ends of the prestress connecting rods are fixed in the stepped holes through pre-tightening upper nuts arranged above the stepped holes and pre-tightening lower nuts arranged below the stepped holes, the sound-absorbing unit plates are provided with vertical through holes corresponding to the prestress connecting rods, and a plurality of the sound-absorbing unit plates are serially arranged on the prestress connecting rods through the vertical through holes and are tensioned and then screwed through anchor nuts arranged at the upper ends of the prestress connecting rods;
an I-shaped joint sealing section bar is arranged between two adjacent groups of the sound absorption unit plates on the left and right, and two bolt groups are arranged on the joint sealing section bar;
it is adjacent two sets of control inhale the top buckle that the sound cell board gap department was equipped with the U type directly over, prestressing force connecting rod upper end is followed pass through after passing on the buckle the anchor nut carries out the tensioning back and screws up, the top buckle passes through two with seam seal profile the bolt group links together.
As a further improvement of the present invention, the embedded bolt is a U-shaped bolt, two parallel U-shaped bolts are disposed on the left and right sides of the bottom plate, a U-shaped section of the U-shaped bolt is vertically fixed on the embedded base body, and a vertical section of the U-shaped bolt passes through the bottom plate; the leveling component comprises a leveling nut and a locking nut which are arranged on the vertical section of the U-shaped bolt, the leveling nut is arranged below the bottom plate, and the locking nut is arranged above the bottom plate.
As a further improvement of the present invention, two linear portions of the seam sealing profile are respectively located at two sides of the gaps between the two adjacent groups of the sound absorbing unit plates, one linear portion of the seam sealing profile is located at the gap between the two adjacent groups of the sound absorbing unit plates, two bolt groups are located between the two linear portions of the seam sealing profile, and the two bolt groups are respectively located at two sides of the one linear portion of the seam sealing profile; and two side edges of the top buckle plate are connected with two straight bolts of the seam sealing section bar through two bolt groups.
As a further improvement, the sound absorption unit plate with be equipped with P type or R type sealing strip between two word portions of seam sealing profile, the sealing strip is vertical to be glued and to be established sound absorption unit plate both sides.
As the utility model discloses a further improvement, it is adjacent from top to bottom inhale between the sound cell board, the below inhale and all be equipped with sealed the pad between sound cell board and the pre-buried base member.
As a further improvement, the sound absorption unit plate is provided with vertical through holes corresponding to the prestressed connecting rods, and the vertical through holes are waist-shaped holes or round holes, and the length direction of the waist-shaped holes is consistent with the length direction of the sound absorption unit plate.
As a further improvement, when the sound absorption unit board strides the expansion joint, sound absorption unit board one end is passed through pretension is fixed, the other end behind anchor nut and the prestressing force connecting rod stretch-draw vertical through-hole is waist type hole, relative movement can take place between waist type hole and the prestressing force connecting rod.
As a further improvement, the pre-buried base member upper surface with bottom plate upper surface looks parallel and level, pour the base member in the recess of seting up on the pre-buried base member.
As a further improvement of the utility model, the shoulder hole is a square hole or an arc hole, and extends outwards the bottom plate.
As a further improvement of the present invention, the locking nut and the anchoring nut are double nuts or check nuts.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the utility model provides a novel superpose serial-type prestressing force sound barrier, the bottom plate is fixed on pre-buried base member through buried bolt in advance and leveling subassembly, be equipped with the prestressing force subassembly on the bottom plate, vertical pile is folded a plurality of inhale the sound cell board passes through prestressing force subassembly series connection is in the same place and applys the stretch-draw prestressing force and press from both sides tightly, controls adjacently simultaneously inhale and realize sealing up controlling the seam between the adjacent sound cell board of inhaling through the I shape gap seal section that inserts aluminium matter between the sound cell board gap, control adjacently inhale sound cell board gap department top and set up the top buckle and fix through the bolt. The novel welding machine is simple in structure, light and flexible in field installation, and capable of saving steel and canceling the process of welding the bottom plate by the H-shaped steel stand column, meeting the environment-friendly idea of green manufacturing of enterprises, solving the safety problem of uneven welding quality of I-level welding seams of the H-shaped steel stand column, greatly shortening the material supply period and solving the practical problem of tight material supply period of sound barrier products.
The pre-buried base member can be provided with an expansion joint at every certain distance, works as when sound absorption unit board strides the expansion joint, sound absorption unit board one end is passed through anchor nut and prestressing force connecting rod pretension are fixed, the other end waist type hole with relative movement can take place between the prestressing force connecting rod, promptly anchor nut does not screw up, works as when pre-buried base member receives external influence emergence type to change, sound absorption unit board can follow the prestressing force connecting rod through waist type hole and carries out automatically regulated at the certain limit.
The leveling component comprises a leveling nut 8 and a locking nut 9 which are arranged on the vertical section of the U-shaped bolt 7, the leveling nut 8 is arranged below the bottom plate 11, the locking nut 9 is arranged above the bottom plate 11, and the leveling nut can level the bottom plate through four parts below the bottom plate. After the bottom plate is leveled, a pouring base body is arranged in the groove of the embedded base body, the U-shaped bolt and the bottom plate are reinforced, and the bearing capacity of the U-shaped bolt and the bottom plate is greatly enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is another angle structure diagram of the present invention.
Fig. 3 is a partially enlarged schematic view at a in fig. 1.
Fig. 4 is a schematic view of the internal structure of fig. 3.
Fig. 5 is a partially enlarged schematic view at B in fig. 4.
Fig. 6 is a partially enlarged schematic view at C in fig. 2.
Fig. 7 is a schematic view of the internal structure of fig. 6.
Fig. 8 is a partially enlarged schematic view at D in fig. 7.
Wherein: the sealing structure comprises a pre-buried base body 1, a pouring base body 2, a sound absorption unit plate 3, a rubber pad 4, a seam sealing section 5, a top buckle plate 6, a U-shaped bolt 7, a leveling nut 8, a locking nut 9, a bottom plate 11, a stop block 12, a stepped hole 13, a prestressed connecting rod 14, a pre-tightening lower nut 15, a pre-tightening upper nut 16, an anchoring nut 17, a fastening bolt 18, a fastening nut 19 and a sealing strip 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following description of the present invention with reference to the accompanying drawings and specific embodiments is provided for clarity and completeness.
As shown in fig. 1-8, a novel stacked tandem type prestressed sound barrier includes a pre-buried base body 1, a bottom plate 11 fixed above the pre-buried base body 1 through a pre-buried bolt and a leveling component, and a plurality of sound absorption unit plates 3 connected in series through the pre-buried bolt and the leveling component above the bottom plate 11, a groove corresponding to the bottom plate 11 is provided on the upper surface of the pre-buried base body 1, the bottom plate 11 is located right below a gap between the sound absorption unit plates 3, two adjacent sets of sound absorption unit plates 3 are provided on the bottom plate 11, vertical stoppers 12 are provided on two sides of the sound absorption unit plates 3, each of the bottom plate 11 is provided with four stoppers 12, which are respectively located on two sides of the sound absorption unit plates 3, the stoppers 12 are in close contact with the sound absorption unit plates 3, and a gasket can be provided between the stoppers 12 and the. The number of the stoppers 12 on each bottom plate 11 may be only two, and the stoppers 12 are respectively located on both sides of the sound-absorbing unit plates 3, and each of the stoppers 12 corresponds to two of the sound-absorbing unit plates 3.
11 left and right sides of bottom plate respectively are equipped with at least a set ofly the prestressing force subassembly, the prestressing force subassembly includes that both ends are equipped with the prestressing force connecting rod 14 of external screw thread, shoulder hole 13 has been seted up to the 11 left and right sides of bottom plate, prestressing force connecting rod 14 lower extreme is through locating the pretension upper nut 16 of shoulder hole 13 top is with locating nut 15 is fixed under the pretension of shoulder hole 13 below in the shoulder hole 13, sound absorption unit board 3 on seted up with the corresponding vertical through-hole of prestressing force connecting rod 14, it is a plurality of sound absorption unit board 3 passes through vertical through-hole cluster is established on the prestressing force connecting rod 14 to through locating the anchor nut 17 of prestressing force connecting rod 14 upper end carries out stretch-draw back and screws up. And external threads arranged at two ends of the prestressed connecting rod 14 are respectively matched with the pre-tightening lower nut 15, the pre-tightening upper nut 16 and the anchoring nut 17. In this embodiment, the prestressing force subassembly is in the bottom plate 11 left and right sides respectively is equipped with two sets ofly, shoulder hole 13 is square hole or circular arc hole, and extends to the lateral extension bottom plate 11, is located promptly the bottom plate 11 left side opening on the left side of shoulder hole 13 is located the bottom plate 11 right side opening on the right side of shoulder hole 13, and is convenient prestressing force connecting rod 14's setting. The stepped hole 13 is provided to ensure that the pre-tightening upper nut 16 is completely located in the stepped hole 13, thereby preventing interference with the placement of the sound absorbing unit plate 3. In this embodiment, the prestressed connecting rod 14 is a high-strength low-relaxation prestressed tendon.
The embedded bolts are U-shaped bolts 7, two U-shaped bolts 7 which are parallel to each other are arranged on the left side and the right side of the base plate 11, U-shaped sections of the U-shaped bolts 7 are vertically and fixedly arranged on the embedded base body 1, and the vertical sections of the U-shaped bolts 7 penetrate through the base plate 11; the leveling component comprises a leveling nut 8 and a locking nut 9 which are arranged on the vertical section of the U-shaped bolt 7, the leveling nut 8 is arranged below the bottom plate 11, and the locking nut 9 is arranged above the bottom plate 11. The U-shaped bolt 7 is provided with leveling nuts 8, and the bottom plate 11 can be leveled horizontally through the four leveling nuts 8 below the bottom plate 11. The upper surface of the embedded base body 1 is parallel and level to the upper surface of the base plate 11, a pouring base body 2 is poured in a groove formed in the embedded base body 1 after the lower ends of the base plate 11 and the prestressed connecting rods 14 are installed, the U-shaped bolts 7 and the base plate 11 are reinforced, and the bearing capacity of the U-shaped bolts is enhanced. An elastic washer can be arranged between the leveling nut 8 and the bottom plate 11, and an anti-loosening washer can be arranged between the locking nut 9 and the bottom plate 11.
And the left and right adjacent two groups of sound absorption unit plates 3 are provided with I-shaped joint sealing section bars 5, and the joint sealing section bars 5 are provided with two bolt groups. Two word portions of seam seal section bar 5 are located adjacent two sets of about respectively inhale the both sides of sound cell board 3 gap department, adjacent two sets of about being located of one word portion of seam seal section bar 5 inhale the gap department of sound cell board 3, two the bolt group is located between two word portions of seam seal section bar 5, and two the bolt group is located respectively one word portion both sides of seam seal section bar 5. The bolt set includes a fastening bolt 18 and a fastening nut 19.
It is adjacent two sets of control inhale sound unit board 3 gaps and be equipped with the top buckle 6 of U type directly over, follow prestressing force connecting rod 14 upper end pass after passing on the top buckle 6 the anchor nut 17 carries out the tensioning back and screws up, top buckle 6 passes through two with seam seal section bar 5 the bolt group links together. Two side edges of the top buckle 6 are connected with two straight bolts of the seam sealing section bar 5 through two bolt groups.
Inhale sound cell board 3 with be equipped with P type or R type sealing strip 20 between two word portions of seam sealing profile 5, in this embodiment, sealing strip 20 is vertical to be glued and is established inhale sound cell board 3 both sides.
It is adjacent from top to bottom inhale between the sound cell board 3, the below inhale and be equipped with sealed pad 4 between sound cell board 3 and the pre-buried base member 1, sealed pad 4 shape with inhale the upper and lower terminal surface looks adaptation of sound cell board 3.
The vertical through holes which are formed in the sound absorption unit plates 3 and correspond to the prestress connecting rods 14 are waist-shaped holes or round holes, and the length directions of the waist-shaped holes are consistent with the length directions of the sound absorption unit plates 3. The embedded matrix 1 is provided with an expansion joint at intervals, when the sound absorption unit plate 3 spans the expansion joint, one end of the sound absorption unit plate 3 is tensioned through the anchoring nut 17 and the prestressed connecting rod 14 and then is fixed in a pre-tightening manner, namely the anchoring nut 17 is completely tightened, and an anti-loosening gasket can be arranged between the sound absorption unit plate 3 and the top buckle plate 6 to prevent the sound absorption unit plate 3 from moving relative to the bottom plate 11 and the top buckle plate 6; the other end vertical through-hole is waist type hole, relative movement can take place between waist type hole and the prestressing force connecting rod 14, promptly anchor nut 17 does not screw up, leave the clearance or be provided with elastomeric element (spring or rubber circle etc.) between top buckle 6 and the anchor nut 17, when pre-buried base member 1 takes place deformation, inhale sound cell board 3 and can follow prestressing force connecting rod 14 through waist type hole and carry out automatically regulated at the certain limit.
The locking nut 9 and the anchoring nut 17 are both double nuts or locknuts, and the nuts are prevented from loosening. The rubber pad 4 and the sealing strip 20 are made of ethylene propylene diene monomer.
The bottom plate is fixed on pre-buried base member through buried bolt in advance and leveling subassembly, be equipped with the prestressing force subassembly on the bottom plate, it is vertical a plurality of pile is folded inhale the sound cell board and pass through prestressing force subassembly series connection is in the same place and is applyed the stretch-draw prestressing force and press from both sides tightly, adjacent about inhale and be provided with the I shape gap seal section bar of aluminium matter between the sound cell board gap, it is adjacent to control inhale sound cell board gap department top and set up the top buckle and fix through bolt group. The novel welding machine is simple in structure, light and flexible in field installation, and capable of saving steel and canceling the process of welding the bottom plate by the H-shaped steel stand column, meeting the environment-friendly idea of green manufacturing of enterprises, solving the safety problem of uneven welding quality of I-level welding seams of the H-shaped steel stand column, greatly shortening the material supply period and solving the practical problem of tight material supply period of sound barrier products.
The specific installation mode is as follows:
the embedded base body 1 is formed by pouring concrete, and the U-shaped bolts 7 are uniformly arranged along the length direction of the embedded base body 1 during pouring;
a through hole matched with the vertical section of the U-shaped bolt 7 is formed in the bottom plate 11, the bottom plate 11 is arranged on the U-shaped bolt 7 and is leveled through the leveling nut 8, and then the bottom plate is locked through the locking nut 9;
fixing the lower end of the prestressed connecting rod 14 to the stepped hole 13 through the pre-tightening lower nut 15 and the pre-tightening upper nut 16; pouring concrete into the grooves on the embedded base body 1 to form a pouring base body 2; then, a plurality of sound-absorbing unit plates 3 are arranged on the prestressed connecting rods 14 in a penetrating way through waist-shaped holes on the sound-absorbing unit plates 3, and two prestressed connecting rods 14 are arranged at two ends of each sound-absorbing unit plate 3 in a penetrating way;
adjacent about inhale sound cell board 3's gap department sets up gap seal section bar 5 upper end sets up top buckle 6, 6 both sides of top buckle be equipped with 18 assorted via holes of fastening bolt, the top be equipped with 14 assorted via holes of prestressing force connecting rod, through bolt group will two word portions of seam seal section bar 5 with the both sides limit of top buckle 6 carries out the bolt coupling 4 is served and is twisted on the prestressing force connecting rod anchor nut 17. When the sound-absorbing unit plate 3 spans the expansion joint, the anchor nuts 17 at both ends of the sound-absorbing unit plate 3 are screwed down at one end and not screwed down at the other end.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. A novel stacked series type prestressed sound barrier is characterized by comprising a pre-buried base body (1), a bottom plate (11) fixedly arranged above the pre-buried base body (1) through pre-buried bolts and leveling assemblies, and a plurality of sound absorption unit plates (3) connected in series above the bottom plate (11) through the pre-buried base body, wherein grooves corresponding to the bottom plate (11) are formed in the upper surface of the pre-buried base body (1), the bottom plate (11) is positioned right below a gap between two adjacent groups of the sound absorption unit plates (3), and vertical stop blocks (12) are arranged on the bottom plate (11) and on two sides of the sound absorption unit plates (3);
the left side and the right side of the bottom plate (11) are respectively provided with at least one group of the prestress assemblies, each prestress assembly comprises a prestress connecting rod (14) with external threads at two ends, stepped holes (13) are formed in the left side and the right side of the bottom plate (11), the lower ends of the prestress connecting rods (14) are fixed in the stepped holes (13) through pretightening upper nuts (16) arranged above the stepped holes (13) and pretightening lower nuts (15) arranged below the stepped holes (13), the sound-absorbing unit plates (3) are provided with vertical through holes corresponding to the prestress connecting rods (14), and a plurality of sound-absorbing unit plates (3) are serially arranged on the prestress connecting rods (14) through the vertical through holes and are tensioned and then screwed through anchoring nuts (17) arranged at the upper ends of the prestress connecting rods (14);
an I-shaped joint sealing section bar (5) is arranged between two groups of sound absorption unit plates (3) which are adjacent left and right, and two bolt groups are arranged on the joint sealing section bar (5);
control adjacent two sets of inhale sound unit board (3) gap department directly over be equipped with the top buckle (6) of U type, prestressing force connecting rod (14) upper end is followed pass the back on top buckle (6) and pass through anchor nut (17) are carried out the tensioning back and are screwed up, top buckle (6) and seam sealing profile (5) are through two bolt group links together.
2. The novel stacked tandem type prestressed sound barrier according to claim 1, wherein the embedded bolts are U-shaped bolts (7), two U-shaped bolts (7) parallel to each other are arranged on the left side and the right side of the base plate (11), U-shaped sections of the U-shaped bolts (7) are vertically fixed on the embedded base body (1), and the vertical sections of the U-shaped bolts (7) pass through the base plate (11); the leveling component comprises a leveling nut (8) and a locking nut (9) which are arranged on the vertical section of the U-shaped bolt (7), the leveling nut (8) is arranged below the bottom plate (11), and the locking nut (9) is arranged above the bottom plate (11).
3. The novel superimposed tandem prestressed sound barrier according to claim 1, wherein two linear portions of said seam sealing profile (5) are respectively located at two sides of the gap between two left and right adjacent sets of said sound-absorbing unit plates (3), a linear portion of said seam sealing profile (5) is located at the gap between two left and right adjacent sets of said sound-absorbing unit plates (3), two bolt sets are arranged between the two linear portions of said seam sealing profile (5), and two bolt sets are respectively located at two sides of the linear portion of said seam sealing profile (5); two side edges of the top buckle plate (6) are connected with two straight bolts of the seam sealing section bar (5) through two bolt groups.
4. A new type of stacked series prestressed sound barrier according to claim 3, characterized in that between two straight portions of said sound-absorbing unit panel (3) and said seam sealing profile (5) is provided a P-type or R-type sealing strip (20), said sealing strip (20) being vertically adhered on both sides of said sound-absorbing unit panel (3).
5. The novel stacked series prestressed sound barrier according to claim 1, characterized in that a sealing gasket (4) is arranged between the sound-absorbing unit plates (3) adjacent to each other up and down, and between the lowest sound-absorbing unit plate (3) and the pre-buried base body (1).
6. The novel stacked series prestressed sound barrier according to claim 1, characterized in that the vertical through holes corresponding to the prestressed connecting rods (14) formed on the sound-absorbing unit plates (3) are waist-shaped holes or round holes, and the length direction of the waist-shaped holes is consistent with the length direction of the sound-absorbing unit plates (3).
7. The novel stacked series prestressed sound barrier according to claim 6, characterized in that when said sound-absorbing unit panel (3) crosses the expansion joint, one end of said sound-absorbing unit panel (3) is fixed by pre-tightening after being tensioned by said anchor nut (17) and said prestressed connecting rod (14), and said vertical through hole of the other end is a kidney-shaped hole, and said kidney-shaped hole and said prestressed connecting rod (14) can be relatively moved.
8. A novel stacked tandem type prestressed sound barrier according to any one of claims 1-7, characterized in that the upper surface of said pre-buried base (1) is flush with the upper surface of said bottom plate (11), and a casting base (2) is cast in a groove formed in said pre-buried base (1).
9. A new type of stacked series prestressed sound barrier according to any one of claims 1-7, characterized by that said stepped hole (13) is a square hole or a circular hole, and extends outwards from said bottom plate (11).
10. A new type of superimposed series prestressed sound barrier according to claim 2, characterized in that said locking nut (9) and anchoring nut (17) are both double nuts or locknuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922103857.7U CN212052398U (en) | 2019-11-29 | 2019-11-29 | Novel stacked series-type prestressed sound barrier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922103857.7U CN212052398U (en) | 2019-11-29 | 2019-11-29 | Novel stacked series-type prestressed sound barrier |
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| CN212052398U true CN212052398U (en) | 2020-12-01 |
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| CN201922103857.7U Active CN212052398U (en) | 2019-11-29 | 2019-11-29 | Novel stacked series-type prestressed sound barrier |
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