Fabricated totally-closed sound barrier structure for U-shaped groove of subway line
By installing prefabricated reinforced concrete roof panels and vertical walls on the U-shaped groove of the subway line, the door-shaped structure is formed and the connection is quickly solved, and the existing upright sound barrier noise reduction effect is achieved, and efficient installation and good noise reduction effect are achieved.
Patent Information
- Application Number
- CN202421419810.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The vertical sound barrier in the open section of the U-shaped groove exit range of the existing subway line has limited height and is open at the top, resulting in poor noise reduction effect on surrounding high-rise buildings.
The prefabricated fully enclosed acoustic barrier structure is adopted, including prefabricated reinforced concrete roof panels and vertical walls, forming a door-shaped structure, quickly connecting the connecting plates and bolts, and using cement mortar to fill the gaps to achieve a fully enclosed effect.
It improves installation efficiency and noise reduction effect, can effectively isolate subway noise to the surrounding high-rise buildings, and improves the overall performance of the sound barrier.
Smart Images
Figure CN222730392U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of subway engineering, and in particular to an assembled fully enclosed sound barrier structure for a U-shaped groove of a subway line. Background Art
[0002] At present, the main noise reduction technology for the open section of the U-shaped slot exit of the subway operating line is the vertical sound barrier. The height of the vertical sound barrier is generally only 3-5m, and the top is open, which has limited noise reduction effect on high-rise buildings around the U-shaped slot. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides an assembled fully enclosed sound barrier structure for a U-shaped groove of a subway line, which has the characteristics of high installation efficiency and good noise reduction effect.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an assembled fully enclosed sound barrier structure for a U-shaped groove of a subway line, including a U-shaped groove, characterized in that it also includes a prefabricated reinforced concrete top plate and a prefabricated reinforced concrete vertical wall, the prefabricated reinforced concrete vertical walls are respectively connected to the tops of the left and right sides of the U-shaped groove, the two ends of the prefabricated reinforced concrete top plate are respectively connected to the tops of the prefabricated reinforced concrete vertical walls on the left and right sides, and a door-shaped structure is formed between the prefabricated reinforced concrete top plate and the prefabricated reinforced concrete vertical walls.
[0005] As a further improvement of the utility model, it also includes a connecting plate, which is a C-shaped structure with an opening on one side, the prefabricated reinforced concrete vertical wall is provided with steel bars, the connecting plate is embedded in the bottom of the prefabricated reinforced concrete vertical wall and welded to the steel bars, the top of the U-shaped groove is provided with a connecting bolt, the bottom of the connecting plate is provided with a screw hole, the connecting bolt is inserted into the connecting plate through the screw hole and is fixed by a nut.
[0006] As a further improvement of the present invention, after the connecting bolts are inserted into the connecting plate and fixed, the openings of the connecting plate are filled with cement mortar.
[0007] As a further improvement of the utility model, a gap is provided at the connection between the prefabricated reinforced concrete vertical wall and the top of the U-shaped groove, and the gap is filled with cement mortar.
[0008] As a further improvement of the present invention, the prefabricated reinforced concrete vertical wall and the prefabricated reinforced concrete top plate are connected together by bolts.
[0009] As a further improvement of the utility model, a gap is provided at the connection between the prefabricated reinforced concrete vertical wall and the prefabricated reinforced concrete top plate, and the gap is filled with cement mortar.
[0010] As a further improvement of the utility model, the prefabricated reinforced concrete top plate is provided with a slope surface for facilitating drainage.
[0011] The beneficial effects of the utility model are as follows: the structure adopts prefabricated reinforced concrete top plate and prefabricated reinforced concrete vertical walls. The prefabricated parts can be produced in a factory and then transported to the site for construction and installation. It has the characteristics of high installation efficiency and can be installed and formed in a short time during the skylight period of the subway operation line. A door-shaped structure is formed between the prefabricated reinforced concrete top plate and the prefabricated reinforced concrete vertical walls, which has a good noise reduction effect and can better isolate the subway noise from being transmitted to the surrounding area. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the connection structure between the prefabricated reinforced concrete vertical wall and the U-shaped groove of the utility model;
[0014] Marking description: U-shaped groove 1, precast reinforced concrete vertical wall 2, steel bar 21, precast reinforced concrete top plate 3, connecting plate 4, connecting bolt 5, nut 51, bolt 6. DETAILED DESCRIPTION
[0015] The utility model is further described below in conjunction with specific embodiments and drawings.
[0016] like Figure 1 , 2 As shown, an assembled fully enclosed sound barrier structure for a U-shaped groove 1 of a subway line includes a U-shaped groove 1, on which a fully enclosed sound barrier consisting of a prefabricated reinforced concrete top plate 3 and a prefabricated reinforced concrete vertical wall 2 is installed along the longitudinal direction of the subway line. The prefabricated reinforced concrete top plate 3 and the prefabricated reinforced concrete vertical wall 2 are both produced in a factory and then transported to the site for installation. The sound barrier is made of reinforced concrete, which can solve the problem of poor durability of metal sound insulation boards and reduce the workload of later maintenance or replacement.
[0017] The precast reinforced concrete vertical walls 2 are respectively connected to the tops of the left and right sides of the U-shaped groove 1, and the two ends of the precast reinforced concrete top plate 3 are respectively connected to the tops of the precast reinforced concrete vertical walls 2 on the left and right sides, so that a door-shaped structure is formed between the precast reinforced concrete top plate 3 and the precast reinforced concrete vertical walls 2 on the left and right sides. A fully enclosed sound barrier is formed by the door-shaped structure, which can effectively isolate the subway noise from being transmitted to the surrounding area.
[0018] Specifically, a connection plate 4 is embedded in the bottom of the precast reinforced concrete vertical wall 2. The connection plate 4 is welded to the steel bars 21 in the precast reinforced concrete vertical wall 2. The connection plate 4 is a C-shaped structure with an opening on one side, and a screw hole is provided at the bottom of the connection plate 4. A connection bolt 5 is provided at the top of the U-shaped groove 1. During installation, the precast reinforced concrete vertical wall 2 is hoisted to the top of the U-shaped groove 1, and the connection bolt 5 is inserted into the connection plate 4 through the screw hole, and then fixed by the nut 51. Finally, cement mortar is filled in the opening of the connection plate 4 and the gap at the connection between the precast reinforced concrete vertical wall 2 and the top of the U-shaped groove 1 to achieve the connection between the precast reinforced concrete vertical wall 2 and the top of the U-shaped groove 1. The precast reinforced concrete top plate 3 is hoisted to the precast reinforced concrete vertical walls 2 on the left and right sides and connected together by bolts 6, and at the same time, the gap at the connection between the precast reinforced concrete vertical wall 2 and the precast reinforced concrete top plate 3 is filled with cement mortar. The structure adopts the method of lifting piece by piece and quick connection with bolts to achieve the rapid installation of the fully enclosed sound barrier. After the prefabricated reinforced concrete vertical walls 2 on the left and right sides are connected, the vertical walls can be fully upright and stressed, and there is no need to spend time setting up columns and diagonal braces to support the vertical walls, thereby improving the installation efficiency and enabling the structure to be installed and formed in a short time during the skylight period of the subway operation line.
[0019] Furthermore, the prefabricated reinforced concrete top plate 3 is provided with a slope surface (not shown in the figure) for facilitating drainage. When it rains, rainwater can be drained along the slope surface and fall onto the ground, thus preventing rainwater from accumulating.
[0020] The above embodiments do not limit the present invention in any form. Any person with ordinary knowledge in the technical field can make equivalent embodiments by making partial changes or modifications to the technical contents disclosed in the present invention without departing from the scope of the technical features of the present invention, and they are still within the scope of the technical features of the present invention without departing from the technical features of the present invention.
Claims
1. An assembled fully enclosed sound barrier structure for a U-shaped groove of a subway line, comprising a U-shaped groove, characterized in that: It also includes a precast reinforced concrete top plate and a precast reinforced concrete vertical wall. The precast reinforced concrete vertical walls are respectively connected to the tops of the left and right sides of the U-shaped groove, and the two ends of the precast reinforced concrete top plate are respectively connected to the tops of the precast reinforced concrete vertical walls on the left and right sides, forming a door-shaped structure between the precast reinforced concrete top plate and the precast reinforced concrete vertical walls.
2. The assembled fully enclosed sound barrier structure for a U-shaped trough of a subway line according to claim 1 is characterized by: It also includes a connecting plate, which is a C-shaped structure with an opening on one side. The prefabricated reinforced concrete vertical wall is provided with steel bars. The connecting plate is embedded in the bottom of the prefabricated reinforced concrete vertical wall and welded to the steel bars. The top of the U-shaped groove is provided with a connecting bolt, and the bottom of the connecting plate is provided with a screw hole. The connecting bolt is inserted into the connecting plate through the screw hole and is fixed by a nut.
3. The assembled fully enclosed sound barrier structure for a U-shaped trough of a subway line according to claim 2 is characterized by: After the connecting bolts are inserted into the connecting plate and fixed, the opening of the connecting plate is filled with cement mortar.
4. The assembled fully enclosed sound barrier structure for a U-shaped trough of a subway line according to claim 1 is characterized by: A gap is provided at the connection between the prefabricated reinforced concrete vertical wall and the top of the U-shaped groove, and the gap is filled with cement mortar.
5. The assembled fully enclosed sound barrier structure for a U-shaped trough of a subway line according to claim 1 is characterized by: The prefabricated reinforced concrete vertical wall and the prefabricated reinforced concrete top plate are connected together by bolts.
6. The assembled fully enclosed sound barrier structure for a U-shaped trough of a subway line according to claim 1, characterized in that: A gap is provided at the connection between the prefabricated reinforced concrete vertical wall and the prefabricated reinforced concrete top plate, and the gap is filled with cement mortar.
7. The assembled fully enclosed sound barrier structure for a U-shaped trough of a subway line according to claim 1 is characterized by: The prefabricated reinforced concrete top plate is provided with a slope surface for facilitating drainage.