Sound insulation sealing construction method for pipeline crossing structure wall body

Abstract

The invention discloses a sound insulation sealing construction method for a pipeline crossing structure wall body, which comprises the following construction steps of: firstly, capturing the distribution of reinforcing steel bars in the wall body and the position of a pre-embedded pipeline by adopting a laser scanner, synchronizing scanning data to a BIM platform, generating a three-dimensional model and automatically marking a safe drilling area; the pipeline wall penetrating position, the hole diameter and the sleeve size are determined, and the wall penetrating center point is marked. And then, according to the BIM model parameters and the drilling points, drilling machine equipment is started for drilling. Next, the sleeve is embedded into a hole formed in the wall body; an outer sound insulation layer is arranged on the contact face of a sleeve and a hole of a wall, gluing is conducted in the circumferential direction of the sleeve, the surface of the outer sound insulation layer and the edge of a pipeline are covered, the outer edge of the hole of the wall is coated with an arc-shaped sealing face in a blade coating mode, the arc-shaped vertex is higher than the interface of the sleeve and the wall, and a continuous drainage slope is formed. And finally, a galvanized steel wire mesh is installed on the sound insulation layer, the sound insulation layer is fixed to the wall through fixing pieces, an anti-rust layer is arranged on the galvanized steel wire mesh, and cement mortar is smeared on the galvanized steel wire mesh.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a sound insulation and sealing construction method for pipes passing through structural walls. Background Art

[0002] In the building mechanical and electrical installation project, the acoustic sealing treatment of the pipe wall-penetrating structure is a key technical link to ensure the quality of the building sound environment. In the prior art, when pipes such as water pipes and air ducts pass through concrete walls, the construction method of directly plugging the holes with cement mortar is usually adopted. The following technical defects exist in this traditional process:

[0003] (1) Acoustic performance defect: The density of ordinary Portland cement is 2000-2200 kg / m 3 , and its inherent sound insulation amount is only 45-50 dB, which cannot meet the air-borne sound insulation requirements of more than 50 dB in places such as hotels and residences. The vibration sound energy generated by the medium flow in the pipe is directly transmitted through the rigid material, forming a sound bridge effect.

[0004] (2) Structural defect: The difference in the linear expansion coefficient between the single-layer rigid plugging layer and the outer wall of the pipe reaches 1.5×10 -5 / ℃. When the temperature changes or the medium pressure fluctuates, shear stress is generated at the interface, resulting in cracking of the plugging layer. Experimental data show that under the working pressure of the pipe of 0.6 MPa and the temperature difference of 30℃, the cracking rate of the conventional plugging layer reaches 82% within 3 months.

[0005] (3) Lack of seismic performance: The current construction specification does not set a flexible transition layer. When the pipe system generates vibrations with an amplitude of ±3 mm, stress concentration occurs at the bonding surface between the plugging layer and the pipe, accelerating the fatigue failure of the material. Engineering cases show that the effective sealing life of the plugging structure without flexible materials does not exceed 2 years.

[0006] The above technical defects lead to problems such as excessive noise and shedding of the plugging layer after the building is put into use, seriously affecting the use function of the building.

[0007] Therefore, there is an urgent need for a sound insulation and sealing construction method for pipes passing through structural walls, which has good sound insulation effect and can solve problems such as cracking and shedding caused by pipe vibration. Summary of the Invention

[0008] In view of this, the present invention provides a sound insulation and sealing construction method for pipes passing through structural walls, which has the advantages of improving the sound insulation effect, enhancing the structural stability, improving the seismic performance, extending the service life, improving the construction accuracy and efficiency, and realizing intelligent monitoring and adjustment.

[0009] The sound insulation and sealing construction method for pipes passing through structural walls provided by the present invention adopts the following technical solutions:

[0010] A sound insulation and sealing construction method for a pipeline passing through a structural wall, comprising the following construction steps:

[0011] Step 1, 3D scanning and modeling: Using a laser scanner, capture the distribution of internal steel bars in the wall and the position of embedded pipelines. Synchronize the scanned data to the BIM platform, generate a 3D model, automatically mark the safe drilling areas, determine the pipeline wall-piercing position, hole diameter and casing size, and mark the wall-piercing center point;

[0012] Step 2, wall hole opening: According to the BIM model parameters and drilling points, start the drilling rig equipment to drill holes;

[0013] Step 3, casing installation, embed the casing into the hole opened in the wall;

[0014] Step 4, external sound insulation layer construction:

[0015] Step 41, set an external sound insulation layer on the contact surface between the casing and the hole in the wall;

[0016] Step 42, apply sealant along the circumferential direction of the casing to cover the surface of the external sound insulation layer and the edge of the pipeline, and scrape an arc-shaped sealing surface on the outer edge of the hole in the wall. The arc apex is higher than the interface between the casing and the wall, forming a continuous drainage slope;

[0017] Step 5, protective layer construction;

[0018] Step 51, install a galvanized wire mesh on the sound insulation layer and fix it to the wall through fasteners;

[0019] Step 52, set an anti-rust layer on the galvanized wire mesh;

[0020] Step 53, apply cement mortar on the galvanized wire mesh.

[0021] Optionally, the casing includes an inner pipe and an outer pipe. A vibration damping module and an inner sound insulation layer are arranged between the inner pipe and the outer pipe. The outer pipe is installed in the hole, and the inner pipe is a functional pipeline.

[0022] Optionally, vibration sensors and noise sensors are embedded in the inner sound insulation layer and connected to the control platform.

[0023] Optionally, the vibration damping module includes a spring shock absorber and an airbag shock absorber. The airbag shock absorber can be inflated or deflated, and the spring shock absorber is internally provided with an adjustable damping valve. The control platform controls the spring shock absorber and the airbag shock absorber.

[0024] Optionally, triaxial acceleration sensors are installed at the support frame and the end of the outer pipe to identify the resonance frequency through FFT spectrum analysis.

[0025] Optionally, a sound pressure sensor is installed at the seal of the casing and the wall, and a dynamic working condition model is established through Kalman filter algorithm fusion.

[0026] Optionally, the construction steps of the inner sound insulation layer are as follows:

[0027] Step 31: Lay sound insulation cotton on the outer wall of the inner pipe;

[0028] Step 32: Wrap an aluminum film outside the sound insulation cotton.

[0029] Optionally, in Step 31, a support frame is installed on the outer wall of the inner pipe, and the support frame is used to support the sound insulation cotton.

[0030] Optionally, Step 2: Drilling holes in the wall, including the following construction steps:

[0031] Step 21: Set a reinforcement layer at the edge of the hole in the wall,

[0032] Step 22: Use a drilling rig equipment to drill holes. The drilling rig equipment includes an outer adjustable diameter sheath and an inner spiral drill rod. The outer adjustable diameter sheath matches the outer diameter of the pipeline. The outer adjustable diameter sheath is placed at the designated position according to the position determined in Step 1. The diameter of the sheath is adjusted through a hydraulic mechanism to form a guiding channel. The inner spiral drill rod rotates and advances inside the sheath, and the spiral blades transport the cuttings to the ground surface. At the same time, the slurry or concrete for protecting the wall is pumped through the hollow pipeline.

[0033] Optionally, a debris collection bin is arranged in the area where the outer adjustable diameter sheath is located at the spiral blade to export the debris drilling area, and is used to adsorb the debris to the debris collection bin in real time.

[0034] In summary, the present invention includes at least one of the following beneficial technical effects: including steps such as three-dimensional scanning and modeling, wall hole drilling, casing installation, outer sound insulation layer construction, and surface protection layer construction. By adopting a multi-layer sound insulation structure, vibration damping modules, and an intelligent monitoring system, the problems of poor sound insulation effect, unstable structure, and poor seismic performance in the traditional technology are effectively solved, and it has the advantages of improving the sound insulation effect, enhancing the structural stability, improving the seismic performance, extending the service life, improving the construction accuracy and efficiency, and realizing intelligent monitoring and adjustment. Description of the Drawings

[0035] Figure 1 is a schematic structural diagram of the airbag shock absorber and the spring shock absorber of the embodiment of the present invention and the inner pipe and the outer pipe.

[0036] Description of the reference numerals: 1. Outer pipe; 2. Inner pipe; 3. Airbag shock absorber; 4. Spring shock absorber. Detailed Embodiments

[0037] The following is a further detailed description of the present invention in conjunction with the attached Figure 1 to the present invention.

[0038] The embodiment of the present invention discloses a sound insulation and sealing construction method for a pipeline to penetrate a wall structure.

[0039] Reference Figure 1 , a sound insulation and sealing construction method for a pipeline passing through a structural wall of a building, comprising the following construction steps:

[0040] Step 1, 3D scanning and modeling: Using a laser scanner, capture the distribution of internal steel bars in the wall and the position of embedded pipelines. Synchronize the scanned data to the BIM platform, generate a 3D model, automatically mark the safe drilling area, determine the pipeline wall-piercing position, hole diameter, and sleeve size, and mark the center point of the wall-piercing;

[0041] Step 2, wall hole opening: According to the BIM model parameters and drilling points, start the drilling rig equipment to drill holes;

[0042] Step 3, sleeve installation, embed the sleeve into the hole opened in the wall;

[0043] Step 4, external sound insulation layer construction:

[0044] Step 41, set an external sound insulation layer on the contact surface between the sleeve and the hole in the wall;

[0045] Step 42, apply sealant along the circumferential direction of the sleeve to cover the surface of the external sound insulation layer and the edge of the pipeline, and scrape an arc-shaped sealing surface on the outer edge of the hole in the wall. The arc vertex is higher than the interface between the sleeve and the wall, forming a continuous drainage slope;

[0046] Step 5, protective layer construction;

[0047] Step 51, install a galvanized steel wire mesh on the sound insulation layer and fix it to the wall through fasteners;

[0048] Step 52, set an anti-rust layer on the galvanized steel wire mesh;

[0049] Step 53, apply cement mortar on the galvanized steel wire mesh.

[0050] It can effectively solve the acoustic sealing problem of the pipeline wall-piercing structure. Specifically, the 3D scanning and modeling step can accurately capture the internal structure of the wall, ensuring the accuracy of the drilling position. The wall hole opening step drills holes by using the drilling rig equipment, ensuring the dimensional and positional accuracy of the holes. The sleeve installation step forms the basis for sound insulation and sealing by embedding the sleeve into the hole. The external sound insulation layer construction step further improves the sound insulation effect by setting the external sound insulation layer and applying sealant, and forms a continuous drainage slope by scraping the arc-shaped sealing surface to prevent water infiltration. The protective layer construction step increases the stability and durability of the sealing structure by installing the galvanized steel wire mesh, anti-rust layer, and cement mortar.

[0051] The three-dimensional scanning and modeling steps capture the distribution of internal steel bars in the wall and the positions of embedded pipelines through a laser scanner, generate a three-dimensional model, automatically label the safe drilling areas, determine the pipeline penetration positions, hole diameters, and casing sizes, and mark the center points of penetration. The BIM platform is used to generate a three-dimensional model and label the safe drilling areas to ensure the accuracy and safety of the construction process. The laser scanner is used to capture the distribution of internal steel bars in the wall and the positions of embedded pipelines, providing accurate construction data.

[0052] The wall opening steps drill holes by starting the drilling rig equipment to ensure the dimensional and positional accuracy of the holes. The casing installation steps form a sound-insulating and closed foundation by embedding the casing into the holes opened in the wall. The external sound-insulating layer construction steps further improve the sound-insulating effect by setting the external sound-insulating layer and caulking, and form a continuous drainage slope by scraping an arc-shaped sealing surface to prevent water infiltration. The drilling rig equipment drills holes through the outer adjustable-diameter sheath and the inner spiral drill rod to ensure the dimensional and positional accuracy of the holes. The casing is used to be embedded into the holes to form a sound-insulating and closed foundation.

[0053] The facing layer construction steps increase the stability and durability of the closed structure by installing galvanized wire mesh, anti-rust layer, and cement mortar. The external sound-insulating layer, galvanized wire mesh, anti-rust layer, and cement mortar are respectively used to improve the sound-insulating effect and increase the stability and durability of the structure.

[0054] Compared with the prior art, the advantages and innovations of the present invention lie in that it comprehensively considers the acoustic performance, structural stability, and seismic performance, providing a comprehensive solution. In the prior art, the construction method of directly plugging holes with cement mortar has problems such as acoustic performance defects, structural defects, and lack of seismic performance. However, the present invention solves these problems by adopting steps such as three-dimensional scanning and modeling, wall opening, casing installation, external sound-insulating layer construction, and facing layer construction, improving the sound-insulating effect and enhancing the stability and durability of the structure.

[0055] The present invention ensures the accuracy of the drilling position by using a laser scanner to capture the distribution of internal steel bars in the wall and the positions of embedded pipelines, generating a three-dimensional model, and labeling the safe drilling areas. The dimensional and positional accuracy of the holes is guaranteed by starting the drilling rig equipment to drill holes. A sound-insulating and closed foundation is formed by embedding the casing into the holes. The sound-insulating effect is further improved by setting the external sound-insulating layer and caulking, and a continuous drainage slope is formed by scraping an arc-shaped sealing surface to prevent water infiltration. The stability and durability of the closed structure are increased by installing galvanized wire mesh, anti-rust layer, and cement mortar.

[0056] In this embodiment, the casing includes an inner tube 2 and an outer tube 1, a vibration reduction module and an inner sound insulation layer are arranged between the inner tube 2 and the outer tube 1, the outer tube 1 is installed in the hole, and the inner tube 2 is a functional pipe. A vibration reduction module and an inner sound insulation layer are arranged between the inner tube 2 and the outer tube 1. The outer tube 1 is installed in the hole of the wall, and the inner tube 2 is used as a functional pipe, such as a water pipe. This structure solves the problems of poor acoustic performance, poor structural stability and insufficient seismic performance in the traditional pipe through the wall structure.

[0057] The vibration reduction module is used to reduce the transmission of pipeline vibration to the wall, and the inner sound insulation layer is used to improve the overall sound insulation effect. The vibration reduction module adopts spring shock absorber 4 and airbag shock absorber 3, and the inner sound insulation layer adopts sound insulation cotton, which effectively solves the problems of sound bridge effect, cracking of sealing layer and insufficient seismic performance in traditional construction methods. By setting up the vibration reduction module, the transmission of pipeline vibration to the wall can be greatly reduced, and the generation of sound bridge effect can be avoided. The application of the inner sound insulation layer improves the overall sound insulation effect and can meet higher sound insulation requirements. In addition, the combined design of the vibration reduction module and the inner sound insulation layer also enhances the stability and seismic performance of the structure, and solves the problems of easy cracking of the sealing layer and poor seismic performance in traditional construction methods.

[0058] Vibration sensors and noise sensors are embedded in the inner sound insulation layer and connected to the control platform, which solves the shortcomings of traditional pipeline crossing structures in terms of sound insulation and earthquake resistance. By embedding vibration sensors and noise sensors in the inner sound insulation layer, the vibration and noise of the pipeline can be monitored in real time, and the data can be transmitted to the control platform for analysis and processing. In this way, effective control of pipeline vibration and noise can be achieved, the sound insulation effect can be improved, and the problem of structural cracking and falling off caused by vibration can be avoided.

[0059] Specifically, the pre-buried positions of vibration sensors and noise sensors are determined according to the actual situation of the pipeline to ensure that the vibration and noise signals of the pipeline can be accurately captured. The control platform needs to have data collection, analysis and feedback functions, and can perform real-time adjustment and control based on the data provided by the sensor, thereby realizing dynamic management of the pipeline system.

[0060] In this embodiment, the vibration sensor uses a three-axis acceleration sensor, and the noise sensor selects a high-precision sound pressure sensor. The above sensors are connected to the control platform by wireless means, and the control platform signal processing algorithm, such as fast Fourier transform (FFT) and Kalman filter, analyzes and processes the collected data, identifies the vibration frequency and noise characteristics of the pipeline system, and takes corresponding control measures according to the analysis results.

[0061] Thus, by embedding vibration sensors and noise sensors in the inner sound insulation layer and connecting them to the control platform, the present invention realizes the real-time monitoring and control of pipeline vibration and noise, effectively improving the sound insulation effect and seismic performance of the pipeline crossing structure. Compared with the prior art, the technical solution of the present invention can not only meet the high sound insulation requirements, but also prevent the problems of structural cracking and peeling caused by vibration, having significant practical application value.

[0062] Install triaxial acceleration sensors at the support frame and the end of the outer pipe 1, and identify the resonance frequency through FFT spectrum analysis.

[0063] In the sound insulation and enclosure construction method for the pipeline crossing the structure wall, install triaxial acceleration sensors at the support frame and the end of the outer pipe 1 to monitor the vibration of the pipeline and the wall. Through FFT (Fast Fourier Transform) spectrum analysis, FFT can identify the resonance frequency of the system, thereby providing data support for subsequent vibration reduction and sound insulation measures, and being able to convert the time-domain signal into a frequency-domain signal for easy analysis and identification of vibration characteristics.

[0064] The triaxial acceleration sensor can simultaneously measure the acceleration components in the X, Y, and Z directions, providing comprehensive vibration data. Installing the sensor at the support frame and the end of the outer pipe 1 can accurately capture the vibration information of the pipeline and the wall in different directions. Through real-time monitoring and data analysis, resonance problems can be detected and processed in a timely manner, avoiding structural damage and noise problems caused by resonance.

[0065] In this embodiment, firmly install the triaxial acceleration sensor at the support frame and the end of the outer pipe 1 through a fixing device. The vibration data collected by the sensor is transmitted to the data processing platform through a data cable or wireless transmission method. The data processing platform uses the FFT spectrum analysis algorithm to process the vibration signal, identify the resonance frequency, and generate a vibration characteristic report. According to the analysis results, corresponding vibration reduction measures can be taken, such as adjusting the parameters of the shock absorber, adding shock absorption devices, etc., to optimize the sound insulation effect.

[0066] By installing triaxial acceleration sensors at the support frame and the end of the outer pipe 1 and combining with FFT spectrum analysis technology, resonance problems can be effectively identified and processed, improving the sound insulation effect of the pipeline crossing the structure wall. Compared with the prior art, this method can more accurately monitor and analyze the vibration situation, providing a scientific basis, thereby improving the construction quality and sound insulation performance.

[0067] In addition, a sound pressure sensor is installed at the sealing of the casing and the wall, and through the Kalman filtering algorithm for fusion, a dynamic working condition model is established. The installation of the sound pressure sensor aims to monitor the sound pressure changes at the pipe penetration through the wall in real time. Through the Kalman filtering algorithm, the data collected by the sound pressure sensor can be processed and fused, thereby establishing a dynamic working condition model that can reflect the changes in the acoustic environment at the pipe penetration through the wall in real time, helping to detect and solve noise problems in a timely manner.

[0068] The installation position of the sound pressure sensor is selected at the sealing of the casing and the wall, so that the sound pressure changes around the pipe penetrating through the wall can be captured more accurately. The Kalman filtering algorithm is an effective data processing method that can extract useful signals in a noisy environment, predict and update real-time data, and thus establish a dynamic working condition model. This model can be continuously updated and optimized over time to reflect the actual operating conditions.

[0069] In this way, the present invention can effectively monitor and analyze the acoustic characteristics at the pipe penetration through the wall, detect potential noise problems in a timely manner, and take corresponding measures for treatment. This dynamic monitoring and analysis method is more flexible and accurate compared with traditional static detection means, and can better guarantee the acoustic environment quality of the building.

[0070] The vibration damping module includes a spring shock absorber 4 and an airbag shock absorber 3. The airbag shock absorber 3 can be inflated and expanded or deflated and contracted. The spring shock absorber 4 is internally provided with an adjustable damping valve. The control platform controls the spring shock absorber 4 and the airbag shock absorber 3. By adopting the combination of the spring shock absorber 4 and the airbag shock absorber 3, the noise and structural damage caused by pipe vibration can be effectively alleviated. The airbag shock absorber 3 adjusts the vibration damping effect by inflating and expanding or deflating and contracting, while the adjustable damping valve built in the spring shock absorber 4 can further finely adjust the vibration damping performance and is controlled by the control platform to ensure the real-time adjustment and optimization of the vibration damping effect.

[0071] The airbag shock absorber 3 realizes the vibration damping effect through the charging and discharging of gas and is suitable for vibration control at lower frequencies. The spring shock absorber 4, through the coordinated action of the spring and the damping valve, is suitable for vibration control in a wider frequency range. The introduction of the control platform makes the coordinated work of the two more efficient, and can adjust the vibration damping parameters in real time according to the actual working conditions to ensure the best vibration damping effect.

[0072] Specifically, the spring shock absorber 4 can change the damping coefficient by adjusting the built-in damping valve to meet the requirements of different vibration frequencies and amplitudes. The airbag shock absorber 3 realizes the changes in volume and stiffness through the charging and discharging of gas to meet the vibration damping requirements under different working conditions. The control platform obtains the vibration data through sensors and adjusts the parameters of the spring shock absorber 4 and the airbag shock absorber 3 in real time according to the preset algorithm to ensure the optimization of the vibration damping effect.

[0073] Specifically, a triaxial acceleration sensor is installed at the end of the outer pipe 1 and the support frame to monitor the vibration acceleration of the pipeline in the X / Y / Z three axial directions in real time and capture low-frequency (50 - 500 Hz) mechanical vibration signals. A sound pressure sensor is deployed at the sealing position between the casing and the wall to identify high-frequency noise (>500 Hz) and airborne sound waves.

[0074] According to the resonance frequency identified by FFT, the opening degree of the adjustable damping valve of the spring shock absorber 4 is adjusted through the control platform. For example:

[0075] High-frequency vibration (acquired information > 200 Hz): Increase the opening degree of the damping valve to enhance the damping force for rapid energy consumption;

[0076] Low-frequency vibration (acquired information < 100 Hz): Decrease the opening degree of the damping valve to reduce rigid transmission.

[0077] The airbag shock absorber 3 is adjusted based on the sound pressure level and vibration energy distribution output by the Kalman filter model to control the inflation / deflation of the airbag. In high-noise scenarios (sound pressure level > 90 dB): Inflate to increase the airbag stiffness and block the structure-borne sound path; In scenarios dominated by low-frequency vibration: Deflate to reduce the stiffness and enhance the flexible vibration isolation effect.

[0078] In this embodiment, the sensor data sampling period ≤ 10 ms, and the control platform updates the shock absorption parameters every 100 ms. The vibration propagation trend is predicted through the dynamic working condition model, and the state of the shock absorber is adjusted in advance (such as pre-inflation or pre-pressurization).

[0079] Thus, by adopting the combination of the spring shock absorber 4 and the airbag shock absorber 3 and performing real-time adjustment through the control platform, the present invention not only improves the sound insulation effect but also effectively solves the problems of structural cracking and shedding caused by pipeline vibration. Compared with the prior art, the solution of the present invention has significant advantages in terms of sound insulation and shock absorption effects, can better meet the requirements of the building sound environment quality, and at the same time extends the service life of the construction structure.

[0080] In this embodiment, the construction steps of the inner sound insulation layer are as follows: Sound insulation cotton is laid on the outer wall of the inner pipe 2, and an aluminum film is wrapped outside the sound insulation cotton.

[0081] Sound insulation cotton is laid on the outer wall of the inner pipe 2, and an aluminum film is wrapped outside the sound insulation cotton. By laying sound insulation cotton on the outer wall of the inner pipe 2, the vibration sound energy generated by the flow of the medium inside the pipeline can be effectively isolated, avoiding the direct transmission of the vibration sound energy through rigid materials and forming a sound bridge effect. Further, by wrapping an aluminum film outside the sound insulation cotton, the sound insulation effect can be enhanced, and an additional protective layer can be provided to prevent the sound insulation cotton from being affected by the external environment.

[0082] The inner sound insulation layer selects fiberglass sound-absorbing cotton or rubber and plastic sponge as the core material. Its flexible characteristics can avoid applying additional rigid constraints to the shock absorber, ensuring the free deformation of the spring shock absorber 4 (low frequency) and the airbag shock absorber 3 (high frequency).

[0083] Wrap an aluminum film layer outside the sound-absorbing cotton to block the transmission of airborne sound. At the same time, the ductility of the aluminum film will not limit the dynamic adjustment of the shock absorber.

[0084] Set a buffer gap around the spring shock absorber 4 and the airbag shock absorber 3 to prevent the sound insulation material from directly contacting the surface of the shock absorber and prevent friction loss or vibration transmission interference.

[0085] By laying sound-absorbing cotton on the outer wall of the inner tube 2, the vibration sound energy can be effectively isolated, avoiding the formation of the sound bridge effect and significantly improving the sound insulation effect. Secondly, by wrapping an aluminum film outside the sound-absorbing cotton, the sound insulation effect can be enhanced, and an additional protective layer can be provided, extending the service life of the sound insulation layer. It can significantly improve the sound insulation effect of the pipeline passing through the structural wall, and at the same time solve the problems of cracking and falling off caused by pipeline vibration, which has important practical application value.

[0086] In step 31, a support frame is installed on the outer wall of the inner tube 2. The support frame is used to support the sound-absorbing cotton. In the present invention, by installing a support frame on the outer wall of the inner tube 2 to support the sound-absorbing cotton, the sound insulation effect and structural stability are further improved. The setting of the support frame effectively prevents the sound-absorbing cotton from being displaced or deformed due to gravity or other external forces, ensuring that the sound-absorbing cotton can be closely attached to the outer wall of the inner tube 2, thereby improving the sound insulation effect. In addition, the support frame can also provide additional support force for the sound-absorbing cotton, avoiding the failure of the sound-absorbing cotton due to fatigue or aging during long-term use.

[0087] There are various ways to implement the support frame. For example, the support frame can be made of metal materials, having high rigidity and durability; it can also be made of high-strength plastic materials, having good corrosion resistance and lightness. The shape and structure of the support frame can be designed according to actual needs. For example, it can be in a ring shape, a grid shape or other shapes to ensure that the sound-absorbing cotton can be evenly stressed and closely attached to the outer wall of the inner tube 2. The installation method of the support frame can also be diversified. For example, it can be installed by welding, bolt fixing or snap-fastening, etc., to ensure the stability and reliability of the support frame.

[0088] In the present invention, by installing a support frame on the outer wall of the inner tube 2 to support the sound-absorbing cotton, the problems of easy displacement, deformation and failure of the sound-absorbing cotton in the prior art are effectively solved, and the sound insulation effect and structural stability are improved. Compared with the prior art, the solution of the present invention can not only significantly improve the sound insulation performance, but also extend the service life of the sound insulation enclosure structure, having high practical value.

[0089] The installation sequence is as follows:

[0090] First, fix the spring shock absorber 4 and the airbag shock absorber 3, and complete the initial parameter calibration through the control platform;

[0091] Then, install a support frame (such as a snap-type metal bracket) on the outer wall of the inner tube 2 to ensure that the sound insulation cotton has no physical contact with the shock absorber;

[0092] Finally, lay the sound insulation cotton in layers and wrap it with an aluminum film, and fix it with tape or straps to prevent the material from loosening and squeezing the shock absorption module.

[0093] In order to further improve the vibration isolation, an elastic isolation layer is provided between the shock absorber and the sound insulation layer. The elastic isolation layer can be made of a silicone gasket or a rubber strip, which blocks the vibration from being transmitted to the wall through the sound insulation material and allows the shock absorption module to expand and contract freely.

[0094] In this embodiment, for the wall opening, the following construction steps are included: a reinforcement layer is provided at the edge of the hole in the wall, and a drilling machine is used for opening the hole. The drilling machine includes an outer adjustable-diameter sheath and an inner spiral drill rod. The outer adjustable-diameter sheath matches the outer diameter of the pipeline. The outer adjustable-diameter sheath is placed at the specified position according to the position determined by the three-dimensional model, and the diameter of the sheath is adjusted by a hydraulic mechanism to form a guiding channel. The inner spiral drill rod rotates and advances inside the sheath, and the spiral blades transport the cuttings to the ground surface. At the same time, slurry or concrete for protecting the wall is pumped through the hollow pipeline; this solves the problems such as acoustic performance defects, structural defects, and lack of seismic performance in the traditional construction method. By providing a reinforcement layer at the edge of the hole in the wall, the structural strength around the hole can be enhanced, preventing cracking caused by vibration or temperature changes. Using a drilling machine including an outer adjustable-diameter sheath and an inner spiral drill rod can accurately position and stably perform the drilling operation, ensuring that the hole size matches the outer diameter of the pipeline. At the same time, the design of the spiral drill rod enables the drill cuttings to be effectively transported to the ground surface, avoiding the problem of debris accumulation during the construction process. By pumping slurry or concrete for protecting the wall through the hollow pipeline, the stability and tightness of the hole can be further improved.

[0095] The outer adjustable-diameter sheath adopts a multi-segment structure, and the diameter of each segment of the sheath is adjusted by a hydraulic mechanism to adapt to the outer diameters of different pipelines.

[0096] Compared with the prior art, by adopting a reinforcement layer and an adjustable-diameter sheath structure during the wall opening process, the present invention can effectively solve the problems of poor acoustic performance, easy cracking of the structure, and insufficient seismic performance in the traditional construction method. Thereby, the sound insulation effect and the overall stability of the pipeline passing through the structural wall are improved, and the service life of the closed construction is extended.

[0097] The outer adjustable-diameter sheath is provided with a debris collection bin in the area where the spiral blade exports debris for drilling, which is used to adsorb debris to the debris collection bin in real time, solving the problem of debris handling during drilling. By setting up a debris collection bin in the area where the spiral blade of the outer adjustable-diameter sheath exports debris for drilling, it can effectively adsorb and collect the debris generated during drilling in real time, preventing the debris from scattering and affecting the construction environment and drilling quality.

[0098] During the drilling process of the outer adjustable-diameter sheath, the spiral blade will export the debris, and the debris collection bin set in the export area will adsorb and collect it in real time. This design not only improves the cleanliness and safety of the construction, but also effectively prevents the debris from damaging the drilling equipment and pipelines.

[0099] In this embodiment, the debris collection bin can achieve real-time adsorption of debris through a vacuum adsorption system to ensure that the debris does not scatter at the construction site. At the same time, the material of the collection bin can be made of wear-resistant alloy materials to extend its service life.

[0100] Thus, the present invention effectively solves the problem of debris handling during drilling by setting up a debris collection bin, improves the construction quality and efficiency, avoids the damage of debris to equipment and pipelines, and has significant practical value.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A sound insulation and sealing construction method for a pipeline passing through a structural wall, characterized in that: The construction steps include: Step 1, 3D scanning and modeling: Use a laser scanner to capture the distribution of steel bars and the location of embedded pipelines inside the wall, synchronize the scan data to the BIM platform, generate a 3D model and automatically mark the safe drilling area, determine the location, hole diameter and casing size of the pipeline through the wall, and mark the center point of the wall; Step 2: Drill holes in the wall: start the drilling rig to drill holes according to the BIM model parameters and drilling points; Step 3: Install the casing by inserting the casing into the hole opened in the wall; Step 4, construction of external sound insulation layer: Step 41, providing an external sound insulation layer on the contact surface between the casing and the hole of the wall; Step 42, applying glue along the circumference of the casing and covering the surface of the outer sound insulation layer and the edge of the pipe, scraping and applying an arc-shaped sealing surface on the outer edge of the hole in the wall, with the arc vertex higher than the interface between the casing and the wall, forming a continuous drainage slope; Step 5, construction of the protective layer; Step 51, installing a galvanized steel wire mesh on the sound insulation layer and fixing it to the wall through a fixing piece; Step 52, providing an anti-rust layer on the galvanized steel wire mesh; Step 53, apply cement mortar on the zinc steel wire mesh.

2. The sound insulation and sealing construction method for a pipeline passing through a structural wall according to claim 2, characterized in that: The casing includes an inner tube and an outer tube, a vibration reduction module and an inner sound insulation layer are arranged between the inner tube and the outer tube, the outer tube is installed in the hole, and the inner tube is a functional pipe.

3. The sound insulation and sealing construction method for a pipeline passing through a structural wall according to claim 2, characterized in that: Vibration sensors and noise sensors are embedded in the inner sound insulation layer and connected to the control platform.

4. The sound insulation and sealing construction method for a pipeline passing through a structural wall according to claim 3, characterized in that: The vibration reduction module includes a spring vibration reduction device and an air bag vibration reduction device. The air bag vibration reduction device can be inflated and expanded or deflated. The spring vibration reduction device is equipped with an adjustable damping valve. The control platform controls the spring vibration reduction device and the air bag vibration reduction device.

5. The sound insulation and sealing construction method for a pipeline passing through a structural wall according to claim 4, characterized in that: Three-axis acceleration sensors are installed on the support frame and the end of the outer tube, and the resonant frequency is identified through FFT spectrum analysis.

6. The sound insulation and sealing construction method for a pipeline passing through a structural wall according to claim 5, characterized in that: A sound pressure sensor is installed at the seal between the casing and the wall, and a dynamic working condition model is established through fusion through the Kalman filter algorithm.

7. The sound insulation and sealing construction method for a pipeline passing through a structural wall according to claim 2, characterized in that: The construction steps of the inner sound insulation layer are as follows: Step 31, laying sound insulation cotton on the outer wall of the inner tube; Step 32: Wrap the sound insulation cotton with aluminum film.

8. The sound insulation and sealing construction method for a pipeline passing through a structural wall according to claim 7, characterized in that: In step 31, a support frame is installed on the outer wall of the inner tube, and the support frame is used to support the sound insulation cotton.

9. The sound insulation and sealing construction method for a pipeline passing through a structural wall according to claim 1, characterized in that: Step 2, wall opening, includes the following construction steps: Step 21: Set a reinforcement layer at the edge of the hole in the wall. Step 22, use a drilling rig to drill a hole. The drilling rig includes an outer adjustable diameter sleeve and an inner spiral drill rod. The outer adjustable diameter sleeve matches the outer diameter of the pipeline. The outer adjustable diameter sleeve is placed at a designated position according to the position determined in step 1. The diameter of the sleeve is adjusted by a hydraulic mechanism to form a guide channel. The inner spiral drill rod rotates and advances in the sleeve. The spiral blades transport the cuttings to the surface, and at the same time, the wall protection mud or concrete is pumped through the hollow pipe.

10. The sound insulation and sealing construction method for a pipeline passing through a structural wall according to claim 9, characterized in that: The outer layer adjustable diameter sheath is located in the debris drilling area where the spiral blades lead out debris, and is provided with a debris collection bin for real-time adsorption of debris to the debris collection bin.

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