Blasting vibration reduction structure close to vibration sensitive building and construction method

Abstract

The invention discloses an adjacent vibration sensitive building blasting vibration reduction structure which comprises a vibration reduction wall, vibration reduction material layers are arranged on the two sides of the vibration reduction wall correspondingly, reflection holes are formed in one sides of the vibration reduction material layers, the reflection holes are in a hemispherical shape, and a plurality of sets of reflection holes are formed; each set of reflection holes are evenly distributed in the horizontal direction of the vibration reduction wall, a reflection layer is arranged on the inner wall of each reflection hole, a damping system is arranged in the center of each reflection layer, a dynamic monitoring system is arranged on one side of each damping system, vibration isolation grooves are formed in the two sides of the vibration reduction wall, and the vibration isolation grooves are communicated with the vibration reduction wall. The stability of the vibration reduction wall is enhanced through the pre-stressed anchor rods and the protruding rods, and the influence of blasting vibration waves on sensitive buildings is effectively weakened. The vibration isolation grooves are filled with foamed aluminum materials, the energy absorption efficiency and durability are improved, the dynamic monitoring system monitors data in real time, the central control system evaluates and optimizes the vibration reduction effect, and the long-term stable vibration reduction effect is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of building blasting, and more particularly to a vibration reduction structure for blasting near a vibration-sensitive building and a construction method thereof. Background Art

[0002] In modern urban construction and infrastructure renovation projects, blasting is a common construction method used to demolish old structures or open up space for new projects. However, the vibration waves generated by blasting will not only affect objects in the direct operation area, but are also likely to affect distant surrounding areas, especially those sensitive buildings that are not designed to resist external vibrations, posing a potential threat. These sensitive buildings include but are not limited to historic buildings, laboratories containing precision equipment or instruments, hospitals, schools, and places of special cultural or historical value; After searching, the existing patent (publication number: CN118326988A) discloses a vibration reduction structure and construction method suitable for deep foundation pit blasting construction in complex environments, including: foundation pit excavation contour line, vibration reduction hole and blasting hole; wherein the vibration reduction hole is set downward along the foundation pit excavation contour line; the vibration reduction hole is filled with blasting vibration transmission isolation material; the blasting hole is filled with waterproof rock emulsion explosive, and the bottom of the blasting hole is provided with a weak cushion layer; the waterproof rock emulsion explosive is provided with a non-electric detonator millisecond delay detonator. In the process of realizing the present invention, the inventor found that the prior art has the following problems: Existing vibration reduction measures often focus on increasing the distance between the blasting point and sensitive buildings, or using more sophisticated blasting technology to reduce the energy released by a single blast. However, in urban environments, space is limited and it is difficult to significantly increase the distance between the blasting point and sensitive buildings. Second, although over-reliance on sophisticated blasting technology can reduce vibration intensity, it also increases operational difficulty and cost, and cannot completely eliminate the impact of vibration. Therefore, in order to solve the above problems, a blasting vibration reduction structure and construction method near vibration-sensitive buildings are proposed. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a blasting vibration reduction structure and a construction method near a vibration-sensitive building to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a blasting vibration reduction structure near a vibration-sensitive building, comprising a vibration reduction wall, vibration reduction material layers are arranged on both sides of the vibration reduction wall, reflective holes are arranged on one side of the vibration reduction material layer, the reflective holes are in a hemispherical shape, and the reflective holes are arranged in a plurality of groups, each group of the reflective holes is evenly arranged along the horizontal direction of the vibration reduction wall, a reflective layer is arranged on the inner wall of the reflective holes, a damping system is arranged at the center of the reflective layer, a dynamic monitoring system is arranged on one side of the damping system, and vibration isolation grooves are arranged on both sides of the vibration reduction wall.

[0005] Preferably, prestressed anchor rods are provided at the bottom of the vibration-damping wall, and the prestressed anchor rods are provided in several groups, and each group of the prestressed anchor rods is evenly arranged along the horizontal direction of the vibration-damping wall. The prestressed anchor rods include a rod body and an anchor head, and the bottom of the rod body is provided with an anchor head, and the anchor head is arranged in the surrounding rock layer, and the anchor head applies pre-compression stress to the surrounding rock layer.

[0006] Preferably, the vibration-damping material layer includes a rubber shock-absorbing pad, a mounting plate and a reflective plate, a mounting plate is provided on one side of the rubber shock-absorbing pad, a reflective plate is provided on a side of the rubber shock-absorbing pad away from the mounting plate, the reflective plate faces the location of the blasting building, and the reflective hole is provided on the reflective plate.

[0007] Preferably, the damping system includes piezoelectric ceramics and connecting wires, the piezoelectric ceramics are cylindrical, and the piezoelectric ceramics are arranged at the center of the reflective layer, a connecting wire is arranged on one side of the piezoelectric ceramics, and the piezoelectric ceramics are connected to the dynamic monitoring system through the connecting wires.

[0008] Preferably, raised rods are provided on both sides of the vibration-damping wall, and the raised rods are provided in several groups, and each group of the raised rods is evenly arranged along the horizontal direction of the vibration-damping wall, and connecting holes are provided on the outer walls of the mounting plate and the reflecting plate, and bolts are provided inside the connecting holes, and the mounting plate and the reflecting plate are connected to the raised rods through the bolts.

[0009] Preferably, the dynamic monitoring system includes a sensor, a processing unit and a power supply, wherein the processing unit is disposed on one side of the sensor, the power supply is disposed on one side of the processing unit, and the other side of the processing unit is connected to the connecting line.

[0010] Preferably, the sensor detects the blasting vibration wave, and changes the voltage of the power supply through the processing unit, thereby changing the damping value of the piezoelectric ceramic through the connecting wire.

[0011] Preferably, a wireless communication unit is provided on one side of the dynamic monitoring system, a central control system is provided on one side of the wireless communication unit, the central control system includes a memory and a transmitter, a transmitter is provided on one side of the memory, the memory receives data from the dynamic monitoring system through the wireless communication unit, and the memory transmits the data to the staff through the transmitter.

[0012] Preferably, a construction method of a blasting vibration reduction structure near a vibration-sensitive building, the processing method comprises the following steps: S1. Determine a suitable location between the blasting area and the vibration-sensitive building, dig and lay the prestressed anchor rods, and then cast to form a vibration-damping wall. During the casting process, bury the raised rods into the vibration-damping wall for fixation; S2, assembling the shock-absorbing material layer onto the vibration-absorbing wall by connecting the bolts and the raised rods, and then digging the vibration-isolating groove according to the size and shape of the blasting area, and filling the vibration-absorbing material in the vibration-isolating groove; S3, installing the dynamic monitoring system on the side of the vibration-damping wall facing the blasting area, and then connecting the dynamic monitoring system and the piezoelectric ceramic through the connecting line; S4, connecting the dynamic monitoring system to the central control system via the wireless communication unit, and the staff debugs and calibrates the dynamic monitoring system; S5. After the blasting operation is completed, the monitoring data is collected through the central control system, the vibration reduction effect is evaluated, and the system is adjusted and optimized.

[0013] Preferably, in step S2, the vibration absorbing material filled inside the vibration isolation groove is foamed aluminum, and the depth of the vibration isolation groove is 5 meters.

[0014] Technical effects and advantages of the present invention: 1. Compared with the prior art, the vibration reduction structure and construction method for blasting near vibration-sensitive buildings effectively reduce the impact of blasting vibration on nearby sensitive buildings by setting up vibration reduction walls and vibration reduction material layers, as well as reflective holes and damping systems. The vibration isolation grooves on both sides of the vibration reduction wall further isolate the propagation of vibration waves.

[0015] 2. Compared with the prior art, this vibration reduction structure and construction method for blasting near vibration-sensitive buildings increases the stability of the structure by using prestressed anchor rods at the bottom of the vibration reduction wall, and improves the vibration resistance of the overall structure by applying pre-compression stress to the surrounding rock layer.

[0016] 3. Compared with the prior art, the blasting vibration reduction structure and construction method near vibration-sensitive buildings can monitor the blasting vibration wave in real time through an integrated dynamic monitoring system, and adjust the power supply voltage through a processing unit, thereby changing the damping value of the piezoelectric ceramic to adapt to different vibration conditions. In addition, the addition of a wireless communication unit and a central control system enables the staff to remotely monitor and adjust the system to ensure the optimization of the vibration reduction effect.

[0017] 4. Compared with the prior art, the construction method proposed in this article not only includes the construction of the vibration reduction structure, but also involves the installation and commissioning of the dynamic monitoring system, as well as subsequent data collection and system optimization. This method ensures the effective implementation of the vibration reduction measures and allows adjustments based on actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 The present invention is a flow chart of a construction method of a blasting vibration reduction structure near a vibration-sensitive building.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the partial explosion of the vibration-damping wall of the present invention.

[0021] Figure 4 It is a schematic diagram of the arrangement structure of the prestressed anchor rods of the present invention.

[0022] Figure 5 It is a partial cross-sectional structural schematic diagram of the dynamic monitoring system of the present invention.

[0023] Figure 6 It is a working schematic diagram of the dynamic monitoring system and central control system of the present invention.

[0024] The accompanying drawings are marked as follows: 1. Vibration-damping wall; 2. Vibration-damping material layer; 201. Rubber shock-absorbing pad; 202. Mounting plate; 203. Reflecting plate; 3. Reflecting hole; 4. Reflecting layer; 5. Damping system; 501. Piezoelectric ceramics; 502. Connecting wire; 6. Dynamic monitoring system; 601. Sensor; 602. Processing unit; 603. Power supply; 7. Vibration isolation groove; 8. Prestressed anchor rod; 801. Rod body; 802. Anchor head; 9. Raised rod; 10. Connecting hole; 11. Bolt; 12. Wireless communication unit; 13. Central control system; 14. Memory; 15. Transmitter. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1 As attached Figures 1 to 6 A blasting vibration reduction structure adjacent to a vibration-sensitive building is shown, comprising a vibration reduction wall 1. A suitable position is determined between the blasting area and the vibration-sensitive building, prestressed anchor rods 8 are excavated and laid, and then the vibration reduction wall 1 is cast. During the casting process, raised rods 9 are buried in the vibration reduction wall 1 for fixation. The vibration reduction wall 1 serves as a physical barrier to block and absorb vibration waves generated by the blasting, reduce the impact of vibration on the surrounding environment, effectively reduce the impact of vibration waves on adjacent buildings, and improve the safety of vibration-sensitive buildings. Vibration reduction material layers 2 are provided on both sides of the vibration reduction wall 1. The vibration reduction material layer 2 is assembled to the vibration reduction wall 1 through the connection of bolts 11 and the raised rods 9. The vibration reduction material layer 2 consists of a rubber shock-absorbing pad 201, a mounting plate 202 and a reflecting plate 203. These materials can absorb and weaken vibration waves passing through the vibration reduction wall 1, enhance the vibration reduction ability of the vibration reduction wall 1, and further protect the vibration-sensitive building.

[0027] A reflective hole 3 is arranged on one side of the vibration-damping material layer 2. The reflective hole 3 is in a hemispherical shape, and there are several groups of reflective holes 3. Each group of reflective holes 3 is evenly arranged along the horizontal direction of the vibration-damping wall 1. The reflective holes 3 disrupt the propagation path of the vibration wave through their specific shape and arrangement, thereby reducing the energy of the vibration wave, effectively disrupting the propagation of the vibration wave, and reducing the impact of vibration on sensitive buildings. A reflective layer 4 is arranged on the inner wall of the reflective hole 3. The reflective layer 4 uses a highly reflective material to further reflect and scatter the vibration wave to reduce its impact on surrounding buildings. Usually, a porous material such as acoustic foam is used, which can reflect or absorb vibration waves. A damping system 5 is arranged at the center of the reflective layer 4. The damping system 5 includes a piezoelectric ceramic 501 and a connecting line 502. The piezoelectric ceramic 501 is arranged at the center of the reflective layer 4 and is connected to the dynamic monitoring system 6 through the connecting line 502. The damping system 5 absorbs vibration energy through the damping characteristics of the piezoelectric ceramic 501, and can be adjusted according to the feedback of the dynamic monitoring system 6 The damping effect is improved, the intelligent adjustment ability of the vibration reduction structure is improved, and effective vibration reduction protection can be provided under different blasting conditions. A dynamic monitoring system 6 is arranged on one side of the damping system 5. The dynamic monitoring system 6 is composed of electronic components such as a sensor 601, a processing unit 602 and a power supply 603, and is integrated through a circuit board and related software. After the sensor 601 detects the vibration wave, it transmits the data to the processing unit 602. The processing unit 602 analyzes and processes the data, and adjusts the damping value of the damping system 5 through the power supply 603, thereby realizing real-time monitoring and data analysis of the blasting vibration wave, providing a basis for the adjustment of the damping system 5, and improving the vibration reduction effect. Vibration isolation grooves 7 are arranged on both sides of the vibration reduction wall 1. The vibration isolation grooves 7 are made by digging grooves on the ground and filling them with vibration absorbing materials. The vibration isolation grooves 7 absorb and isolate vibration waves through the filled vibration absorbing materials, reduce the propagation of vibration waves, effectively reduce the impact of vibration waves on vibration-sensitive buildings, and improve the safety of vibration-sensitive buildings.

[0028] Example 2 Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working method. Figures 1 to 6 As shown, see the following description for details: As a preferred embodiment, a prestressed anchor rod 8 is provided at the bottom of the vibration-damping wall 1. The prestressed anchor rod 8 is provided with a plurality of groups, and each group of prestressed anchor rods 8 is evenly arranged along the horizontal direction of the vibration-damping wall 1. The prestressed anchor rod 8 is made of high-strength steel and is prestressed to improve its bearing capacity. The prestressed anchor rod 8 enhances the stability and vibration resistance of the vibration-damping wall 1 by applying pre-compression stress, thereby improving the overall stability and vibration resistance of the vibration-damping wall 1 and ensuring the performance of the vibration-damping structure under blasting vibration. The prestressed anchor rod 8 includes a rod body 801 and an anchor head 802. The rod body 801 is generally made of high-strength steel and is precision machined and heat treated to enhance its mechanical properties. The rod body 801 is used as It is the main body of the prestressed anchor rod 8 and is responsible for transmitting prestress, thereby ensuring the strength and stability of the prestressed anchor rod 8, thereby improving the overall vibration resistance of the vibration-damping wall 1. An anchor head 802 is arranged at the bottom of the rod body 801. The anchor head 802 is arranged in the surrounding rock layer, and the anchor head 802 applies prestress to the surrounding rock layer. The anchor head 802 is a key component of the prestressed anchor rod 8, which is usually made by forging or casting technology and is firmly connected to the rod body 801. The anchor head 802 is used to fix the prestressed anchor rod 8 in the surrounding rock layer, and enhances the stability of the vibration-damping wall 1 by applying prestress, thereby improving the anchoring effect of the prestressed anchor rod 8 and ensuring the stability of the vibration-damping wall 1 when subjected to blasting vibration.

[0029] As a preferred embodiment, the vibration-damping material layer 2 includes a rubber vibration-damping pad 201, a mounting plate 202 and a reflective plate 203. The rubber vibration-damping pad 201 is arranged on one side of the mounting plate 202. The rubber vibration-damping pad 201 absorbs vibration energy by using its elasticity and damping characteristics, effectively absorbs the vibration transmitted through the vibration-damping wall 1, and reduces the impact of vibration on sensitive buildings. A mounting plate 202 is arranged on one side of the rubber vibration-damping pad 201. The mounting plate 202 is made of steel plate material. The mounting plate 202 is used to fix the rubber vibration-damping pad 201. The mounting plate 202 02 provides a stable structural foundation to ensure that the shock-absorbing material is correctly installed and functions properly. A reflective plate 203 is arranged on the side of the rubber shock-absorbing pad 201 away from the mounting plate 202. The reflective plate 203 faces the location of the blasting building, and a reflective hole 3 is arranged on the reflective plate 203. The reflective plate 203 is made of aluminum plate material. The combined design of the reflective plate 203 and the reflective hole 3 helps to disperse and reflect vibration waves, reduce the direct propagation of vibration waves, enhance the ability of the vibration-absorbing wall 1 to weaken vibration waves, and further protect vibration-sensitive buildings.

[0030] As a preferred embodiment, the damping system 5 includes a piezoelectric ceramic 501 and a connecting wire 502. The piezoelectric ceramic 501 is cylindrical and is arranged at the center of the reflective layer 4. The piezoelectric ceramic 501 is usually made by high-temperature sintering and other processes. It has a piezoelectric effect, that is, it can generate voltage when subjected to external force. The piezoelectric ceramic 501 will generate an electric charge when subjected to vibration, and this electric signal will be transmitted to the dynamic monitoring system 6 through the connecting wire 502. At the same time, under the adjustment of the dynamic monitoring system 6, its own damping value can be changed to adapt to vibration waves of different intensities. A connecting wire 502 is provided on one side of the piezoelectric ceramic 501. The connecting wire 502 is usually an electric wire made of conductive material for transmitting electric signals. The piezoelectric ceramic 501 is connected to the dynamic monitoring system 6 through the connecting wire 502. The connecting wire 502 ensures the effective transmission of the electric signal, so that the dynamic monitoring system 6 can accurately receive vibration data.

[0031] As a preferred embodiment, both sides of the vibration-damping wall 1 are provided with raised rods 9, and the raised rods 9 are provided with a plurality of groups, and each group of raised rods 9 is evenly arranged in the horizontal direction of the vibration-damping wall 1. The raised rods 9 are made of metal or a solid synthetic material, and have raised portions on their surfaces to increase the friction with the vibration-damping material. The raised rods 9 are combined with the connecting holes 10 and the bolts 11 in the vibration-damping material layer 2 through their raised portions to provide additional fixing points, thereby enhancing the connection stability between the vibration-damping material layer 2 and the vibration-damping wall 1 and preventing displacement during blasting vibration. The outer walls of the mounting plate 202 and the reflector plate 203 are provided with raised portions. Both are provided with connecting holes 10, which are holes precisely machined in the mounting plate 202 and the reflecting plate 203 for inserting bolts 11. The connecting holes 10 provide channels for inserting the bolts 11, so that the raised rods 9 can be firmly connected to the shock-absorbing material layer 2. Bolts 11 are provided inside the connecting holes 10. The bolts 11 are usually made of metal and are precisely machined to meet specific size and strength requirements. The bolts 11 are inserted into the connecting holes 10 and tightened to fix the shock-absorbing material layer 2 on the raised rods 9. The mounting plate 202 and the reflecting plate 203 are connected to the raised rods 9 by the bolts 11.

[0032] As a preferred embodiment, the dynamic monitoring system 6 includes a sensor 601, a processing unit 602 and a power supply 603. The model of the sensor 601 is Endeveco 2221-000, which is a precision electronic component that can sense and convert physical signals into electrical signals. The sensor 601 senses the blasting vibration wave and converts it into an electrical signal, providing accurate vibration data for the dynamic monitoring system 6, so that the system can respond to vibration changes in a timely manner. A processing unit 602 is provided on one side of the sensor 601, and the model of the processing unit 602 is National Instruments' cRIO-9074 is a high-performance real-time controller with powerful processing capabilities and rich input / output interfaces. The processing unit 602 receives data from the sensor 601, analyzes and processes it, and adjusts the parameters of the damping system if necessary, ensuring real-time processing of vibration data and intelligent adjustment of the damping system 5, thereby improving the adaptive ability of the vibration reduction structure. A power supply 603 is provided on one side of the processing unit 602. The power supply 603 is usually a battery or a grid-powered device, which can provide stable power for the dynamic monitoring system 6. The power supply 603 provides the required power for electronic components such as the sensor 601 and the processing unit 602, thereby ensuring the stable operation of the dynamic monitoring system 6 and providing a guarantee for real-time monitoring and adjustment of the vibration reduction structure. The other side of the processing unit 602 is connected to the connecting line 502.

[0033] As a preferred embodiment, the sensor 601 monitors the blasting vibration wave, and changes the voltage of the power supply 603 through the processing unit 602, thereby changing the damping value of the piezoelectric ceramic 501 through the connecting line 502. Further, the sensor 601 monitors the blasting vibration wave, and changes the voltage of the power supply 603 through the processing unit 602, thereby changing the damping value of the piezoelectric ceramic 501 through the connecting line 502. The processing unit 602 analyzes the data of the sensor and automatically adjusts the voltage of the power supply 603 according to a preset algorithm or threshold. This intelligent adjustment The mechanism enables the system to quickly adjust the damping value of the piezoelectric ceramic 501 according to the actual vibration conditions. The damping value of the piezoelectric ceramic 501 changes with the voltage of the power supply 603, which means that the vibration reduction effect of the system can be adjusted as needed. When the blasting vibration is large, the damping value is increased to more effectively reduce the vibration; when the vibration is small, the damping value is reduced to save energy. Since the system can automatically adjust the damping according to real-time monitoring data, it has a strong adaptive ability. Whether facing blasting vibrations of different intensities or coping with the impact of environmental changes, the system can maintain effective vibration reduction performance.

[0034] As a preferred embodiment, a wireless communication unit 12 is provided on one side of the dynamic monitoring system 6. The wireless communication unit 12 adopts the XBee series module of Digi International. The wireless communication unit 12 is responsible for transmitting data between the dynamic monitoring system 6 and the central control system 13, realizing remote data transmission and communication, and facilitating the staff to monitor and adjust the vibration reduction system in real time. A central control system 13 is provided on one side of the wireless communication unit 12. The central control system 13 is an electronic device including a processor, a memory 14 and a user interface, which is realized through software development and hardware assembly. The central control system 13 receives data from the dynamic monitoring system 6, analyzes and processes it, and provides feedback to the staff, realizing centralized control and management of the vibration reduction system and improving the intelligence level of the vibration reduction operation. The central control system 13 includes a memory 14 and a transmitter 15. The memory 14 is an electronic storage device using SanDisk Ultra 64GB The microSDXC card has a high storage capacity and a fast data transmission rate and is produced through an electronic manufacturing process. The memory 14 is responsible for storing the vibration data from the dynamic monitoring system, ensuring the recording and storage of the vibration data, and providing an important basis for subsequent analysis and optimization. A transmitter 15 is provided on one side of the memory 14. The transmitter 15 is a radio transmitting device and uses Siemens' Sitrans LR460 radar sensor. It integrates a wireless transmission function and is suitable for industrial automation environments. The transmitter 15 is responsible for sending the data in the memory 14 to the staff for remote monitoring and evaluation, realizing remote data transmission, and facilitating the staff's real-time evaluation of the vibration reduction effect and system adjustment. The memory 14 receives the data of the dynamic monitoring system 6 through the wireless communication unit 12, and the memory 14 transmits the data to the staff through the transmitter 15.

[0035] As a preferred embodiment, a construction method of a blasting vibration reduction structure near a vibration-sensitive building, the processing method comprises the following steps: S1. Determine a suitable position between the blasting area and the vibration-sensitive building, dig and lay the prestressed anchor rods 8, and then cast to form the vibration-damping wall 1. During the casting process, bury the raised rods 9 into the vibration-damping wall 1 for fixing. Wherein, between the blasting area and the vibration-sensitive building, determine a suitable position to construct the vibration-damping wall 1 according to the terrain, geological conditions and vibration propagation characteristics, dig at the position to form a groove or borehole for placing the prestressed anchor rods 8, insert the prestressed anchor rods 8 into the groove or borehole, and ensure that the depth and angle meet the design requirements, tension the prestressed anchor rods 8 to apply prestress, and fix them in the groove or borehole, usually using cement mortar or other fixing materials for filling and sealing. At the same time, during the casting of the vibration-damping wall 1, bury the raised rods 9 in the wall at a predetermined position and spacing to ensure its connection with the vibration-damping material layer, cast concrete or other wall materials to form the vibration-damping wall 1, and during the casting process, ensure that the thickness, strength and flatness of the wall meet the design specifications; S2. Assemble the shock-absorbing material layer 2 to the vibration-absorbing wall 1 by connecting it with the protruding rod 9 through the bolt 11, and then dig the vibration-absorbing groove 7 according to the size and shape of the blasting area, and fill the vibration-absorbing material in the vibration-absorbing groove 7, wherein, after waiting for the concrete to solidify and reach sufficient strength, the shock-absorbing material layer 2 is fixedly connected to the vibration-absorbing wall 1 through the protruding rod 9 to complete the construction of the overall structure, ensuring that the installation position of the shock-absorbing material layer 2 is accurate, the connection is firm, and there is no gap or misalignment. According to the size and shape of the blasting area, dig the vibration-absorbing groove 7, the depth and width of the vibration-absorbing groove 7 are determined according to the design requirements, and the depth is usually about 5 meters, and fill the vibration-absorbing material in the vibration-absorbing groove 7, such as foamed aluminum or other high-efficiency vibration-absorbing materials, to ensure that the vibration-absorbing material is densely filled without holes or gaps; S3. Install the dynamic monitoring system 6 on the side of the vibration-damping wall 1 facing the blasting area, and then connect the dynamic monitoring system 6 with the piezoelectric ceramic 501 through the connecting line 502. Determine the installation position of the dynamic monitoring system 6 on the side of the vibration-damping wall facing the blasting area, fix the sensor 601 part of the dynamic monitoring system 6 at a predetermined position, ensure that it is in close contact with the surface of the vibration-damping wall 1, connect the sensor 601, the processing unit 602 and the power supply 603, ensure that all electronic components are firmly and reliably connected, protect the sensor 601 from damage during installation, and prevent dust and debris from entering the equipment. Connect the dynamic monitoring system 6 with the piezoelectric ceramic 501 damping system 5 through the connecting line 502, ensure that the wiring of the connecting line 502 is reasonable, and avoid excessive bending or stretching to avoid affecting the signal transmission quality; S4, connecting the dynamic monitoring system 6 to the central control system 13 through the wireless communication unit 12, and the staff debugs and calibrates the dynamic monitoring system 6, wherein it is ensured that the dynamic monitoring system 6, the wireless communication unit 12 and the central control system 13 are all in good condition, the wireless communication unit 12 is installed on one side of the dynamic monitoring system 6, the antenna direction is ensured to be correct, and the wireless signal test is performed to ensure that the stability of the communication and the transmission distance meet the design requirements, the data of the dynamic monitoring system 6 is received through the wireless communication unit 12, and it is transmitted to the central control system 13, and the staff can monitor the operation status and data collection of the dynamic monitoring system 6 in real time through the central control system 13; S5. After the blasting operation is completed, the monitoring data is collected through the central control system 13, the vibration reduction effect is evaluated, and the system is adjusted and optimized. The monitoring data are collected through the central control system 13. These data include parameters such as frequency, amplitude, speed of vibration waves, and the vibration reduction effect of the vibration reduction wall 1. The wireless communication unit 12 is ensured to work normally, and the data of the dynamic monitoring system 6 is transmitted to the central control system 13. At the same time, the collected data is stored in the storage 14 for subsequent analysis and evaluation. According to the results of the data analysis, the vibration reduction effect is evaluated, mainly examining the degree of attenuation of the vibration wave by the vibration reduction wall 1 and its protective effect on surrounding buildings and facilities. If the vibration reduction effect reaches the expected goal, the existing system settings can continue to be used; if the expected effect is not achieved, adjustment and optimization are required.

[0036] As a preferred embodiment, in step S2, the vibration-absorbing material filled in the vibration isolation groove 7 is foamed aluminum, and the depth of the vibration isolation groove 7 is 5 meters. Furthermore, foamed aluminum, as a high-efficiency energy-absorbing material, can quickly absorb energy when impacted. This material can effectively reduce the propagation speed and intensity of vibration waves, thereby reducing the impact on the surrounding environment. At the same time, using foamed aluminum to fill the vibration isolation groove 7 can increase the overall stability of the vibration isolation wall 1. Foamed aluminum has good compression performance and deformation resistance, and can withstand greater pressure without deformation or rupture.

[0037] The working process of the present invention is as follows: first, between the blasting area and the vibration-sensitive building, determine a suitable location to construct a vibration-damping wall 1 according to the terrain, geological conditions and vibration propagation characteristics, dig a trench or drill a hole at the determined location for placing a prestressed anchor rod 8, insert the prestressed anchor rod 8 into the trench or drill hole, apply prestress, and fix it in the trench or drill hole. During the casting of the vibration-damping wall 1, bury the protruding rod 9 in the wall at a predetermined position and spacing, and combine the vibration-damping material layer 2 composed of a rubber shock-absorbing pad 201, a mounting plate 202 and a reflecting plate 203 with the protruding rod 9 through bolts 11 to the vibration-damping wall 1. According to the size and shape of the blasting area, dig a vibration-isolating trench 7, and fill the vibration-absorbing material, such as foamed aluminum, in the vibration-damping trench 7. On the side of the vibration-damping wall 1 facing the blasting area, fix the sensor 601 part of the dynamic monitoring system 6 at a predetermined position to ensure that it is in close contact with the surface of the vibration-damping wall 1, and install a wireless communication device on one side of the dynamic monitoring system 6. Unit 12 ensures that the antenna direction is correct, receives data from the dynamic monitoring system 6 through the wireless communication unit 12, and transmits it to the central control system 13. The staff can monitor the operating status and data collection of the dynamic monitoring system 6 in real time through the central control system 13. After the blasting operation is completed, the safety of the blasting area is ensured, and subsequent work can be carried out. The monitoring data, including the frequency, amplitude, speed and other parameters of the vibration wave, are collected through the central control system 13. At the same time, the collected data is stored in the memory 14, and the collected monitoring data is analyzed to extract the characteristics of the vibration wave. According to the results of the effect evaluation, the system is adjusted and optimized, which may include adjusting the tension of the prestressed anchor rod 8, changing the position or number of the protruding rod 9, replacing the shock-absorbing material, etc. The purpose of the adjustment is to enhance the vibration reduction capacity of the vibration-absorbing wall 1 and improve its attenuation effect on the blasting vibration wave. The above is the working principle of the blasting vibration reduction structure and construction method near the vibration-sensitive building.

Claims

1. A blasting vibration reduction structure near a vibration-sensitive building, comprising a vibration reduction wall (1), characterized in that: A vibration-damping material layer (2) is provided on both sides of the vibration-damping wall (1); a reflective hole (3) is provided on one side of the vibration-damping material layer (2); the reflective hole (3) is in a hemispherical shape, and the reflective holes (3) are provided in a plurality of groups, each group of the reflective holes (3) being evenly arranged along the horizontal direction of the vibration-damping wall (1); a reflective layer (4) is provided on the inner wall of the reflective hole (3); a damping system (5) is provided at the center of the reflective layer (4); a dynamic monitoring system (6) is provided on one side of the damping system (5); and vibration isolation grooves (7) are provided on both sides of the vibration-damping wall (1).

2. The blasting vibration reduction structure near a vibration-sensitive building according to claim 1, characterized in that: Prestressed anchor rods (8) are arranged at the bottom of the vibration-damping wall (1); the prestressed anchor rods (8) are arranged in a plurality of groups, and each group of the prestressed anchor rods (8) is evenly arranged along the horizontal direction of the vibration-damping wall (1); the prestressed anchor rods (8) comprise a rod body (801) and an anchor head (802); the bottom of the rod body (801) is provided with an anchor head (802); the anchor head (802) is arranged in a surrounding rock layer, and the anchor head (802) applies pre-compression stress to the surrounding rock layer.

3. The blasting vibration reduction structure near a vibration-sensitive building according to claim 1, characterized in that: The vibration-damping material layer (2) comprises a rubber vibration-damping pad (201), a mounting plate (202) and a reflecting plate (203); the mounting plate (202) is arranged on one side of the rubber vibration-damping pad (201); the reflecting plate (203) is arranged on the side of the rubber vibration-damping pad (201) away from the mounting plate (202); the reflecting plate (203) faces the location of the blasting building, and the reflecting hole (3) is arranged on the reflecting plate (203).

4. The blasting vibration reduction structure near a vibration-sensitive building according to claim 1, characterized in that: The damping system (5) comprises a piezoelectric ceramic (501) and a connecting wire (502); the piezoelectric ceramic (501) is cylindrical and arranged at the center of the reflective layer (4); a connecting wire (502) is arranged on one side of the piezoelectric ceramic (501); and the piezoelectric ceramic (501) is connected to the dynamic monitoring system (6) via the connecting wire (502).

5. The blasting vibration reduction structure near a vibration-sensitive building according to claim 3 is characterized by: Protruding rods (9) are provided on both sides of the vibration-damping wall (1); the protruding rods (9) are provided in a plurality of groups, and each group of the protruding rods (9) is evenly arranged in the horizontal direction of the vibration-damping wall (1); connecting holes (10) are provided on the outer walls of the mounting plate (202) and the reflecting plate (203); bolts (11) are provided inside the connecting holes (10); and the mounting plate (202) and the reflecting plate (203) are connected to the protruding rods (9) via the bolts (11).

6. The blasting vibration reduction structure near a vibration-sensitive building according to claim 4, characterized in that: The dynamic monitoring system (6) comprises a sensor (601), a processing unit (602) and a power supply (603); one side of the sensor (601) is provided with the processing unit (602); one side of the processing unit (602) is provided with the power supply (603); and the other side of the processing unit (602) is connected to the connection line (502).

7. The blasting vibration reduction structure near a vibration-sensitive building according to claim 6, characterized in that: The sensor (601) detects the explosion vibration wave and changes the voltage of the power supply (603) through the processing unit (602), thereby changing the damping value of the piezoelectric ceramic (501) through the connecting line (502).

8. The blasting vibration reduction structure near a vibration-sensitive building according to claim 1, characterized in that: A wireless communication unit (12) is provided on one side of the dynamic monitoring system (6), a central control system (13) is provided on one side of the wireless communication unit (12), the central control system (13) comprises a memory (14) and a transmitter (15), a transmitter (15) is provided on one side of the memory (14), the memory (14) receives data from the dynamic monitoring system (6) through the wireless communication unit (12), and the memory (14) transmits the data to a staff member through the transmitter (15).

9. The blasting vibration reduction structure and construction method for a building near vibration-sensitive buildings according to claim 1, wherein the blasting vibration reduction structure for a building near vibration-sensitive buildings according to any one of claims 1 to 8 is applied, and is characterized in that: The processing method comprises the following steps: S1. Determine a suitable location between the blasting area and the vibration-sensitive building, dig and lay the prestressed anchor rod (8), and then cast to form a vibration-damping wall (1). During the casting process, bury the raised rod (9) into the vibration-damping wall (1) for fixation; S2, assembling the vibration-absorbing material layer (2) onto the vibration-absorbing wall (1) by connecting the bolts (11) and the protruding rods (9), and then digging the vibration-isolating groove (7) according to the size and shape of the blasting area, and filling the vibration-absorbing material in the vibration-isolating groove (7); S3, installing the dynamic monitoring system (3) on the side of the vibration-damping wall (1) facing the blasting area, and then connecting the dynamic monitoring system (6) and the piezoelectric ceramic (501) via the connecting line (502); S4, connecting the dynamic monitoring system (6) to the central control system (13) via the wireless communication unit (12), and the staff debugs and calibrates the dynamic monitoring system (6); S5. After the blasting operation is completed, the monitoring data is collected through the central control system (13), the vibration reduction effect is evaluated, and the system is adjusted and optimized.

10. The blasting vibration reduction structure and construction method near a vibration-sensitive building according to claim 9, characterized in that: In step S2, the vibration absorbing material filled inside the vibration isolation groove (7) is foamed aluminum, and the depth of the vibration isolation groove (7) is 5 meters.

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