Silencing and noise reduction device and method for subway construction

Abstract

Relates to the field of building construction, and discloses a metro construction sound attenuation and noise reduction device which comprises a sound insulation shed arranged on the outer side of a well mouth and a cover plate fixed to the upper end of the well mouth and further comprises a fixing unit arranged on the outer side of the well mouth; the fixing unit comprises a bottom plate fixed to the outer side of the well mouth; the connecting piece is adjustably arranged at the upper end of the bottom plate; the fixing device is arranged on the connecting piece; by arranging the sound insulation shed and the cover plate, an effective sound insulation barrier can be formed at key positions such as a well mouth, noise and vibration transmission is remarkably reduced, interference to resident life is reduced, and after the well mouth sound attenuation cover plate, the sound insulation and noise reduction closed sound insulation shed and the sound absorption cotton are adopted, the sound insulation and noise reduction effects are improved. 24-hour uninterrupted construction can be guaranteed, 10-hour construction is increased at night, the construction production progress is accelerated, and the life quality of residents around construction is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a noise reduction device and method for subway construction. Background Art

[0002] During subway construction, especially when it involves blasting and other operations, huge noise and vibration will be generated. This noise and vibration not only interferes with the surrounding environment and residents' lives of the construction site, but may also pose a threat to the safety of the construction site. In order to reduce this interference and threat, a series of noise reduction measures are usually taken at the construction site.

[0003] Traditional noise reduction methods may include setting up noise barriers around the construction site or using noise reduction equipment to reduce the spread of noise. However, these methods are often limited in effectiveness, especially during high-intensity operations such as blasting, where traditional sound insulation measures may be difficult to effectively reduce the spread of noise and vibration.

[0004] The existing equipment has the following shortcomings: at key locations such as subway shaft openings, due to the need for frequent operations, the subway shaft openings are relatively close to surrounding residential areas, and the noise generated by conventional shaft excavation and support construction, including blasting operations, has seriously affected the quality of life of residents in the community. Complaints about noise nuisance are frequent, and construction cannot be carried out from 20:00 at night to 6:00 in the morning of the next day, which seriously affects the progress of on-site shaft excavation construction.

[0005] Therefore, the present application proposes a subway construction noise reduction device and method to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a subway construction silencing and noise reduction device and method to solve the problem that the noise generated by the above-mentioned blasting operations and other processes seriously affects the quality of life of community residents, frequent complaints about noise nuisance, construction cannot be carried out from 20:00 at night to 6:00 in the morning of the next day, and the progress of on-site shaft excavation is seriously affected.

[0007] To achieve the above object, the present invention provides the following technical solution: a subway construction noise reduction device, comprising a soundproof shed arranged outside a wellhead and a cover plate fixed at the upper end of the wellhead, and also comprising:

[0008] A fixing unit, arranged on the outside of the wellhead, for fixing the cover plate;

[0009] The fixing unit comprises:

[0010] A bottom plate fixed on the outside of the wellhead;

[0011] A connecting piece, adjustably arranged at the upper end of the bottom plate;

[0012] A fixing device, arranged on the connecting member, for fixing the cover plate;

[0013] A protective member is arranged on the connecting member and connected to the fixing device, and is used for protecting the cover plate.

[0014] Wherein, the connecting member includes a column threadedly connected to the upper end of the base plate, a screw threadedly connected to the upper end of the column, a fixing ring sleeved on the screw, a rotating frame rotatably arranged on the fixing ring, a side plate fixed on the rotating frame away from the fixing ring and a fixed shaft fixed between the side plates, and the rotating frame is connected to the fixing device through a transmission member.

[0015] Wherein, the fixing device includes a first fixing plate and a second fixing plate, a lifting rod is fixed to the upper end of the second fixing plate, a squeezing rod is fixed to the upper end of the second fixing plate, the lifting rod and the squeezing rod are both passed through the rotating frame, a guide rod is fixed to the upper end of the first fixing plate, the guide rod is passed through the second fixing plate, and a limiting block is fixed to the upper end of the guide rod.

[0016] Wherein, the lifting rod and the extrusion rod are located between the second fixing plate and the rotating frame and are sleeved with elastic members.

[0017] Among them, the transmission member includes a vertical plate fixed on the upper end of the first fixed plate and passing through the rotating frame, a first rack fixed on the vertical plate, a connecting plate fixed on the upper end of the extrusion rod, a gear rotatably arranged on the upper end of the connecting plate and meshing with the first rack, and a second rack slidably arranged on the connecting plate and meshing with the gear, a baffle is arranged on the side of the second rack close to the protective member, and a through hole for the vertical plate to move is opened on the rotating frame.

[0018] Among them, the protective member includes a horizontal plate passed through the fixed shaft, an inclined plate arranged on the side of the horizontal plate away from the rotating frame and inclined, and a protective rod fixed at the lower end of the inclined plate, the horizontal plate abuts against the lifting rod, and the limit plate abuts against the upper end of the horizontal plate.

[0019] Wherein, a limiting plate is arranged at the position where the second rack is connected to the connecting plate, and a sliding groove for the limiting plate to move is provided on the connecting plate.

[0020] Wherein, the cover plate includes a steel plate, a silencer plate fixed under the steel plate and a protective plate fixed at the lower end of the silencer plate, and the first fixing plate is fixed at the upper end of the steel plate.

[0021] The soundproof shed comprises a frame and a soundproof board arranged outside the frame, a door is arranged on one side of the soundproof shed, and a roof is arranged at the upper end of the soundproof shed.

[0022] A subway construction silencing and noise reduction method, used for operating the above-mentioned subway construction silencing and noise reduction device, comprises the following steps:

[0023] S1. Pre-embed high-strength bolts on the outside of the wellhead, install the frame of the soundproof shed on the pre-embedded bolts, and finally install the soundproof board on the frame to complete the installation and fixation of the soundproof shed.

[0024] S2. When blasting, fix the cover plate at the upper end of the wellhead, then rotate the connecting piece to move the fixing device to the upper end of the cover plate, and then fix the fixing device to the upper end of the cover plate to complete the fixing of the cover plate, so as to prevent the cover plate from breaking off from the upper end of the wellhead after being subjected to the impact force of the blasting.

[0025] S3. When the cover plate is subjected to impact force, it will move upward, and then drive the first fixed plate to move upward, and then the first fixed plate drives the transmission member to move, releasing the restriction of the transmission member on the protective member, and then when the first fixed plate drives the second fixed plate to move upward, the second fixed plate drives the protective member to move downward to knock on the cover plate, driving the cover plate to move downward, and the upward movement distance of the cover plate can be limited.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] When blasting operations are carried out and the cover plate moves upward due to impact force, the fixing device of the present invention can limit the cover plate, effectively preventing the cover plate from collapsing, thereby improving the safety of the construction site; the protective member can also knock the cover plate when it is subjected to excessive impact force, thereby limiting its upward movement distance, further enhancing safety; by arranging a soundproof shed and a cover plate, an effective soundproof barrier can be formed at key locations such as the wellhead, significantly reducing the propagation of noise and vibration, helping to protect the surrounding environment of the construction site, and reducing interference with residents' lives; after adopting a wellhead soundproof cover plate + a soundproof and noise-reducing closed soundproof shed + a sound-absorbing cotton, 24-hour uninterrupted construction can be guaranteed, with an additional 10 hours at night for construction, thereby accelerating the progress of construction production and ensuring the quality of life of residents around the construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the main structure in one embodiment of the present invention;

[0029] Figure 2 It is a schematic diagram of a cross-section structure in one embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure inside the soundproof booth in one embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the connection between the cover plate and the wellhead in one embodiment of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a fixing unit in one embodiment of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the explosion of a transmission part in one embodiment of the present invention;

[0034] Figure 7 It is a structural schematic diagram of a fixing unit in front view according to an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of a cover plate in one embodiment of the present invention;

[0036] Fig. 9 for Figure 4 The enlarged structural diagram of the middle A part;

[0037] Fig.10 for Figure 4 The enlarged structural diagram of the middle B part;

[0038] Fig.11 for Figure 6 The enlarged structural diagram of the middle C part;

[0039] Fig.12 This is a schematic diagram of the structure of the connection between the bottom plate and the screw rod in one embodiment of the present invention;

[0040] Fig.13 It is a schematic diagram of the structure of the explosion of the fixing unit in one embodiment of the present invention.

[0041] In the figure: 1, soundproof shed; 101, wellhead; 11, door; 12, frame; 13, soundproof board; 14, roof; 2, cover plate; 21, steel plate; 22, muffler; 23, protective plate; 3, fixing unit; 31, bottom plate; 32, column; 33, connecting piece; 331, fixing ring; 332, rotating frame; 3321, through hole; 3322, moving hole; 3323, rotating hole; 333, side plate; 334, fixing shaft; 34, screw; 35, fixing device; 35 1. First fixed plate; 3511. Guide rod; 3512. Limit block; 3513. Vertical plate; 3514. First rack; 352. Second fixed plate; 3521. Lifting rod; 3522. Elastic member; 3523. Extrusion rod; 3524. Connecting plate; 35241. Slide; 36. Transmission member; 361. Gear; 362. Second rack; 363. Limit plate; 364. Baffle; 37. Protective member; 371. Horizontal plate; 372. Inclined plate; 373. Protective rod. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-13 The present invention provides a technical solution: a subway construction noise reduction device, comprising a soundproof shed 1 arranged outside a wellhead 101 and a cover plate 2 fixed on the upper end of the wellhead 101, and also comprising:

[0044] A fixing unit 3, arranged outside the wellhead 101, for fixing the cover plate 2;

[0045] The fixing unit 3 comprises:

[0046] A bottom plate 31 is fixed to the outside of the wellhead 101;

[0047] A connecting member 33 is adjustably arranged at the upper end of the bottom plate 31;

[0048] A fixing device 35, provided on the connecting member 33, for fixing the cover plate 2;

[0049] The protective member 37 is disposed on the connecting member 33 and connected to the fixing device 35 , and is used for protecting the cover plate 2 .

[0050] It should be noted that, during operation, the cover plate 2 is fixed to the upper end of the wellhead 101, and then the connecting piece 33 is rotated to move the fixing device 35 to the upper end of the cover plate 2, and then the fixing device 35 is fixed to the upper end of the cover plate 2. When blasting operations are performed and the cover plate 2 moves upward due to impact force, the fixing device 35 can limit the cover plate 2, effectively preventing the cover plate 2 from collapsing, thereby improving the safety of the construction site. The protective piece 37 can also knock the cover plate 2 when it is subjected to excessive impact force, thereby limiting its upward movement distance, further enhancing safety. By setting up a soundproof shed 1 and a cover plate 2, an effective soundproof barrier can be formed at key locations such as the wellhead 101, significantly reducing the spread of noise and vibration, helping to protect the surrounding environment of the construction site, and reducing interference with residents' lives. After using the wellhead 101 soundproof cover plate 2 + soundproof and noise-reducing closed soundproof shed 1 + sound-absorbing cotton, 24-hour uninterrupted construction can be guaranteed, with an additional 10 hours at night for construction, speeding up the construction production progress, and ensuring the quality of life of residents around the construction.

[0051] In one embodiment, the connecting member 33 includes a column 32 threadedly connected to the upper end of the base plate 31, a screw 34 threadedly connected to the upper end of the column 32, a fixing ring 331 sleeved on the screw 34, a rotating frame 332 rotatably arranged on the fixing ring 331, a side plate 333 fixed to the side of the rotating frame 332 away from the fixing ring 331, and a fixed shaft 334 fixed between the side plates 333, and the rotating frame 332 is connected to the fixing device 35 through a transmission member 36.

[0052] This design, see Figure 5-7 , Figure 8-9 ,as well as Fig.13 The rotating frame 332 can rotate relative to the fixing ring 331. This design provides greater flexibility and allows the user to adjust the position and angle of the rotating frame 332 as needed, thereby changing the installation position of the fixing device 35, thereby facilitating the installation and fixing of the cover plate 2. The screw 34 is threadedly connected to the column 32, driving the fixing ring 331 to move downward, and the rotating frame 332 is movably sleeved on the fixing ring 331, so that the rotating frame 332 can move downward with the fixing ring 331, thereby making the fixing device 35 move downward and abut against the cover plate 2 and be connected to the fixing device 35 through a transmission member 36. The connecting member 33 can be effectively linked with other equipment or structures, thereby expanding its use function and scope. A rotating hole 3323 for the fixing ring 331 to move is provided on the rotating frame 332, and a moving hole 3322 for the lifting rod 3521 and the extrusion rod 3523 to move is provided on the rotating frame 332.

[0053] In one embodiment, the fixing device 35 includes a first fixing plate 351 and a second fixing plate 352, a lifting rod 3521 is fixed to the upper end of the second fixing plate 352, an extrusion rod 3523 is fixed to the upper end of the second fixing plate 352, the lifting rod 3521 and the extrusion rod 3523 are both passed through the rotating frame 332, a guide rod 3511 is fixed to the upper end of the first fixing plate 351, the guide rod 3511 is passed through the second fixing plate 352, and a limiting block 3512 is fixed to the upper end of the guide rod 3511.

[0054] This design, see Figure 5-7 , Figure 8-9 ,as well as Fig.13 When the screw 34 drives the first fixing plate 351 to move downward and abut against the cover plate 2, the fixing work of the cover plate 2 is completed. When the cover plate 2 moves upward due to the impact, it drives the first fixing plate 351 to move upward, thereby causing the transmission member 36 to move, and releasing the restriction of the transmission member 36 on the protective member 37. When the first fixing plate 351 moves upward and contacts the second fixing plate 352, it drives the second fixing plate 352 to move upward, so that the second fixing plate 352 drives the lifting rod 3521 to move upward, pushing the protective member 37 to rotate, and knocking the upper end of the cover plate 2, thereby enhancing the stability and reliability of the fixation of the cover plate 2, and effectively preventing the cover plate 2 from being broken open when it is impacted by an explosion.

[0055] In one embodiment, the lifting rod 3521 and the squeezing rod 3523 are located between the second fixing plate 352 and the rotating frame 332 and are sleeved with an elastic member 3522 , and the elastic member 3522 is made of a damped spring or an elastic pad.

[0056] This design, see Figure 5-7 ,as well as Fig.13 During the upward movement of the second fixing plate 352, the elastic member 3522 is squeezed. When the cover plate 2 is no longer impacted, the elastic member 3522 can drive the second fixing plate 352 to move downward. The elastic member 3522 can absorb part of the impact force and reduce direct collision between components, thereby protecting related components from damage.

[0057] In one embodiment, the transmission member 36 includes a vertical plate 3513 fixed to the upper end of the first fixed plate 351 and passing through the rotating frame 332, a first rack 3514 fixed on the vertical plate 3513, a connecting plate 3524 fixed to the upper end of the extrusion rod 3523, a gear 361 rotatably set on the upper end of the connecting plate 3524 and meshingly connected to the first rack 3514, and a second rack 362 slidably set on the connecting plate 3524 and meshingly connected to the gear 361. A baffle 364 is set on the side of the second rack 362 close to the protective member 37, and a through hole 3321 is opened on the rotating frame 332 for the vertical plate 3513 to move.

[0058] This design, see Fig.11 ,as well as Fig.13 When the first fixed plate 351 drives the vertical plate 3513 to move upward, the first rack 3514 is meshed with the gear 361, and then the second rack 362 slides inside the connecting plate 3524, and then the baffle 364 is pulled away from the upper end of the protective member 37. The opening of the through hole 3321 also provides stable guidance and support for the movement of the vertical plate 3513, further improving the safety and stability of the operation.

[0059] In one embodiment, the protective member 37 includes a horizontal plate 371 passed through the fixed shaft 334, an inclined plate 372 arranged on the side of the horizontal plate 371 away from the rotating frame 332 and inclined, and a protective rod 373 fixed to the lower end of the inclined plate 372. The horizontal plate 371 abuts against the lifting rod 3521, and the limit plate 363 abuts against the upper end of the horizontal plate 371.

[0060] This design, see Figure 5-7 ,as well as Fig.13, the baffle 364 is pulled away from the upper end of the horizontal plate 371, and then when the lifting rod 3521 moves upward, it drives the horizontal plate 371 to rotate clockwise along the fixed axis 334, and then the inclined plate 372 drives the protective rod 373 to knock the cover plate 2 downward, limiting the upward movement distance of the cover plate 2, further enhancing safety, thereby reducing the probability of accidents and ensuring the safety of operators.

[0061] In one embodiment, a limiting plate 363 is disposed at the position where the second rack 362 and the connecting plate 3524 are connected, and a sliding groove 35241 for the limiting plate 363 to move is formed on the connecting plate 3524 .

[0062] This design, see Fig.11 The slide groove 35241 provides a clear moving path for the limit plate 363, ensuring that the second rack 362 can slide smoothly along the predetermined direction. The limit plate 363 can effectively limit the moving range of the second rack 362 and prevent it from deviating from the predetermined motion track, thereby ensuring the stability and reliability of the transmission system and avoiding failure or damage caused by excessive movement of the second rack 362.

[0063] In one embodiment, the cover plate 2 includes a steel plate 21 , a silencer plate 22 fixed to the lower side of the steel plate 21 , and a protective plate 23 fixed to the lower end of the silencer plate 22 , and the first fixing plate 351 is fixed to the upper end of the steel plate 21 .

[0064] This design, see Figure 8 The steel plate 21, as the main structural material of the cover plate 2, has good strength and rigidity, ensuring the stability and bearing capacity of the entire cover plate 2. The first fixing plate 351 is fixed to the upper end of the steel plate 21, further enhancing the stability and installation firmness of the cover plate 2, and preventing the cover plate 2 from breaking apart from the upper end of the wellhead 101 when impacted by an explosion. The setting of the silencer plate 22 effectively absorbs the noise generated during the blasting process.

[0065] In one embodiment, the soundproof shed 1 includes a frame 12 and a soundproof board 13 arranged outside the frame 12 , a door 11 is arranged on one side of the soundproof shed 1 , and a roof 14 is arranged on the upper end of the soundproof shed 1 .

[0066] This design, see Figure 1-4 The sound insulation board 13 adopts professional sound insulation materials, such as high-density fiberboard or composite sound insulation materials, which can effectively absorb, reflect or isolate sound waves, thereby achieving excellent sound insulation effect. The frame 12 serves as the skeleton of the sound insulation shed 1 and provides a stable supporting structure, ensuring the overall stability and durability of the sound insulation shed 1.

[0067] A subway construction silencing and noise reduction method, used for operating a subway construction silencing and noise reduction device according to any one of claims 1 to 9, comprising the following steps:

[0068] S1. Pre-embed high-strength bolts on the outside of the wellhead 101, install the frame 12 of the soundproof shed 1 on the pre-embedded bolts, and finally install the soundproof board 13 on the frame 12 to complete the installation and fixing of the soundproof shed 1.

[0069] S2. When blasting, fix the cover plate 2 at the upper end of the wellhead 101, then rotate the connecting piece 33 to move the fixing device 35 to the upper end of the cover plate 2, and then fix the fixing device 35 to the upper end of the cover plate 2 to complete the fixing of the cover plate 2, so as to prevent the cover plate 2 from breaking off from the upper end of the wellhead 101 after being subjected to the impact force of the blasting.

[0070] S3. When the cover plate 2 is impacted, it will move upward, and then drive the first fixed plate 351 upward, and then the first fixed plate 351 drives the transmission member 36 to move, releasing the restriction of the transmission member 36 on the protective member 37, and then when the first fixed plate 351 drives the second fixed plate 352 upward, the second fixed plate 352 drives the protective member 37 downward to knock on the cover plate 2, driving the cover plate 2 downward, so as to limit the upward movement distance of the cover plate 2.

[0071] In addition, if there are descriptions involving "first", "second", etc. in the embodiments, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying the importance of the relative description or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

Claims

1. A subway construction noise reduction device, comprising a soundproof shed (1) arranged outside a wellhead (101) and a cover plate (2) fixed on the upper end of the wellhead (101), characterized in that: Also includes: A fixing unit (3), arranged on the outside of the wellhead (101), and used for fixing the cover plate (2); The fixing unit (3) comprises: A bottom plate (31) fixed on the outside of the wellhead (101); A connecting member (33) is adjustably arranged on the upper end of the bottom plate (31); A fixing device (35), arranged on the connecting member (33) and used for fixing the cover plate (2); A protective member (37) is arranged on the connecting member (33) and connected to the fixing device (35), and is used to protect the cover plate (2).

2. A subway construction noise reduction device according to claim 1, characterized in that: The connecting member (33) comprises a column (32) threadedly connected to the upper end of the base plate (31), a screw rod (34) threadedly connected to the upper end of the column (32), a fixing ring (331) sleeved on the screw rod (34), a rotating frame (332) rotatably arranged on the fixing ring (331), a side plate (333) fixed to a side of the rotating frame (332) away from the fixing ring (331), and a fixing shaft (334) fixed between the side plates (333), and the rotating frame (332) is connected to the fixing device (35) via a transmission member (36).

3. A subway construction noise reduction device according to claim 2, characterized in that: The fixing device (35) comprises a first fixing plate (351) and a second fixing plate (352), a lifting rod (3521) being fixed to the upper end of the second fixing plate (352), a squeezing rod (3523) being fixed to the upper end of the second fixing plate (352), the lifting rod (3521) and the squeezing rod (3523) being both passed through the rotating frame (332), a guiding rod (3511) being fixed to the upper end of the first fixing plate (351), the guiding rod (3511) being passed through the second fixing plate (352), and a limiting block (3512) being fixed to the upper end of the guiding rod (3511).

4. A subway construction noise reduction device according to claim 3, characterized in that: The lifting rod (3521) and the squeezing rod (3523) are located between the second fixing plate (352) and the rotating frame (332), and an elastic member (3522) is sleeved thereon.

5. The subway construction noise reduction device according to claim 3 is characterized by: The transmission member (36) includes a vertical plate (3513) fixed to the upper end of the first fixed plate (351) and passing through the rotating frame (332), a first rack (3514) fixed on the vertical plate (3513), a connecting plate (3524) fixed to the upper end of the extrusion rod (3523), a gear (361) rotatably arranged on the upper end of the connecting plate (3524) and meshingly connected to the first rack (3514), and a second rack (362) slidably arranged on the connecting plate (3524) and meshingly connected to the gear (361), a baffle (364) is arranged on one side of the second rack (362) close to the protective member (37), and a through hole (3321) is opened on the rotating frame (332) for the vertical plate (3513) to move.

6. A subway construction noise reduction device according to claim 4, characterized in that: The protective member (37) comprises a transverse plate (371) passing through the fixed shaft (334), an inclined plate (372) arranged on the side of the transverse plate (371) away from the rotating frame (332) and inclined, and a protective rod (373) fixed to the lower end of the inclined plate (372), the transverse plate (371) abuts against the lifting rod (3521), and the limiting plate (363) abuts against the upper end of the transverse plate (371).

7. The subway construction noise reduction device according to claim 5, characterized in that: A limiting plate (363) is provided at the position where the second rack (362) is connected to the connecting plate (3524), and a sliding groove (35241) for the limiting plate (363) to move is provided on the connecting plate (3524).

8. The subway construction noise reduction device according to claim 3 is characterized by: The cover plate (2) comprises a steel plate (21), a silencer plate (22) fixed to the lower end of the steel plate (21), and a protective plate (23) fixed to the lower end of the silencer plate (22), and the first fixing plate (351) is fixed to the upper end of the steel plate (21).

9. The subway construction noise reduction device according to claim 1, characterized in that: The soundproof shed (1) comprises a frame (12) and a soundproof board (13) arranged outside the frame (12); a door (11) is arranged on one side of the soundproof shed (1); and a roof (14) is arranged at the upper end of the soundproof shed (1).

10. A subway construction silencing and noise reduction method according to claim 1, used to operate a subway construction silencing and noise reduction device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Pre-embed high-strength bolts on the outside of the wellhead (101), install the frame (12) of the soundproof shed (1) on the pre-embedded bolts, and finally install the soundproof board (13) on the frame (12), thereby completing the installation and fixing work of the soundproof shed (1). S2. When blasting, the cover plate (2) is fixed to the upper end of the wellhead (101), and then the connecting piece (33) is rotated to move the fixing device (35) to the upper end of the cover plate (2), and then the fixing device (35) is fixed to the upper end of the cover plate (2), thereby completing the fixing work of the cover plate (2) and preventing the cover plate (2) from breaking off from the upper end of the wellhead (101) after being subjected to the impact force of blasting. S3. When the cover plate (2) is subjected to an impact force, it moves upward, and then drives the first fixed plate (351) to move upward. Then, the first fixed plate (351) drives the transmission member (36) to move, thereby releasing the restriction of the transmission member (36) on the protective member (37). Then, when the first fixed plate (351) drives the second fixed plate (352) to move upward, the second fixed plate (352) drives the protective member (37) to move downward to strike the cover plate (2), thereby driving the cover plate (2) to move downward, thereby limiting the upward movement distance of the cover plate (2).

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