An intelligent blasting monitoring system for tunnel construction

Abstract

The present application relates to the field of tunnel construction equipment, and specifically discloses an intelligent blasting monitoring system for tunnel construction, which includes a shell, a support mechanism and a detector, the shell is provided with a shock absorbing component, the shock absorbing component includes a honeycomb panel and a buffer medium, the honeycomb panel is connected to the shell, the buffer medium is arranged in the honeycomb panel, the support mechanism includes a buffer component and a support frame, the support frame is connected to the shell, the buffer component is arranged between the support frame and the shell, the detector includes a monitoring element and a sensor, the monitoring element is connected to the shell, and the sensor is electrically connected to the monitoring element through a wire. The present application has the effect of improving the problem that the existing intelligent blasting monitoring system for tunnel construction is not adaptable to the construction environment.

Description

Technical Field

[0001] The present application relates to the field of tunnel construction equipment, and in particular to an intelligent blasting monitoring system for tunnel construction. Background Art

[0002] In tunnel excavation, the tunnel is constructed by single-head excavation, and the entrance construction method adopts open excavation. When excavating harder rocks, blasting is required. During the blasting process, attention should be paid to the disturbance of the construction blasting of the subsequent tunnel to the leading tunnel to prevent the leading tunnel from cracking due to blasting vibration. Especially for the construction of bridge tunnels with a tunnel body geological structure of gently inclined rock, high difficulty of temporary support, and great safety hazards, it is necessary to adjust the blasting parameters in time according to the surrounding rock conditions. Therefore, detailed blasting vibration monitoring is required for tunnel construction.

[0003] The existing intelligent blasting monitoring system for tunnel construction includes sensors and monitoring elements. The sensors are usually set at key locations of the tunnel chamber, tunnel entrance and construction impact area. The monitoring elements are usually set at locations that are convenient for collecting sensor signals to ensure accurate transmission and processing of data, that is, the monitoring elements are usually set near the blasting area.

[0004] However, in the existing intelligent blasting monitoring system for tunnel construction, the monitoring elements are usually simply placed on the ground. During the tunnel blasting construction process, they are easily disturbed by the environment and thus damaged, and have poor adaptability to the construction environment. Utility Model Content

[0005] In order to improve the problem that the existing intelligent blasting monitoring system for tunnel construction has poor adaptability to the construction environment, the present application provides an intelligent blasting monitoring system for tunnel construction.

[0006] The intelligent blasting monitoring system for tunnel construction provided in this application adopts the following technical solution:

[0007] An intelligent blasting monitoring system for tunnel construction, comprising:

[0008] The shell is provided with a shock absorbing component, the shock absorbing component includes a honeycomb panel and a buffer medium, the honeycomb panel is connected to the shell, and the buffer medium is arranged in the honeycomb panel;

[0009] The supporting mechanism comprises a buffer assembly and a supporting frame, wherein the supporting frame is connected to the outer shell, and the buffer assembly is arranged between the supporting frame and the outer shell;

[0010] The detector comprises a monitoring element and a sensor. The monitoring element is connected to the housing, and the sensor is electrically connected to the monitoring element through an electric wire.

[0011] By adopting the above technical solution, the shell is provided with a honeycomb panel and a buffer medium, which can effectively absorb and disperse the shock waves generated during the tunnel blasting process, avoid physical damage to the monitoring elements inside the shell, and improve the problem that the existing intelligent blasting monitoring system for tunnel construction is not adaptable to the construction environment; the supporting mechanism enables the shell to be deployed in various terrains and conditions, and can perform preliminary shock absorption before the blasting vibration is transmitted to the monitoring element, thereby protecting the monitoring element from damage, further improving the problem that the existing intelligent blasting monitoring system for tunnel construction is not adaptable to the construction environment; the detector can realize real-time monitoring and data analysis of the blasting process, so that the construction team can understand the blasting effect in time, adjust the construction plan, and ensure construction safety.

[0012] Preferably, a shock-absorbing pad is provided on a side of the honeycomb panel away from the inner wall of the shell, and the middle part of the shock-absorbing pad is concave.

[0013] By adopting the above technical solution, the shock-absorbing pad can further absorb and attenuate the impact energy before the shock wave generated by the blasting is transmitted to the monitoring element; the recessed part is used to ensure the spatial stability of the monitoring element, prevent displacement due to vibration, and reduce possible damage to the monitoring element due to direct contact with the hard surface, thereby further improving the problem that the existing intelligent blasting monitoring system for tunnel construction has poor adaptability to the construction environment.

[0014] Preferably, the housing is further provided with a bracket, the bracket is connected to the housing, the bracket is provided with a groove for connecting to the sensor, a through hole for the power supply line to pass through is opened on one side of the housing close to the bracket, and the through hole is provided with a sealing ring.

[0015] By adopting the above technical solution, the sensor can be set on the outside of the shell through the bracket and connected to the monitoring element through the wire passing through the through hole, so that the operator can arrange the sensor without opening the shell, thereby preventing the intelligent blasting monitoring system for tunnel construction from being polluted by the environment. The intelligent blasting monitoring system for tunnel construction can be used in complex environments, which further improves the problem that the existing intelligent blasting monitoring system for tunnel construction has poor adaptability to the construction environment.

[0016] Preferably, the outer wall of the housing is provided with a shielding layer for reducing external electromagnetic interference.

[0017] By adopting the above technical solution, electromagnetic interference can be reduced through the shielding layer, which can reduce the interference of external electromagnetic waves on the monitoring elements, thereby ensuring the stability of the intelligent blasting monitoring system for tunnel construction in an environment with high electromagnetic interference, and further improving the problem that the existing intelligent blasting monitoring system for tunnel construction has poor adaptability to the construction environment.

[0018] Preferably, the support frame is in an isosceles trapezoidal shape, the upper base of the support frame is connected to the buffer assembly, the lower base of the support frame protrudes from the shell, and a rubber pad is provided on one side of the support frame away from the buffer assembly.

[0019] By adopting the above technical solution, the isosceles trapezoidal support frame provides a lower center of gravity and a larger supporting area, thereby enhancing the stability of the entire monitoring system, enabling it to be firmly installed in an uneven or dynamically changing tunnel construction environment, and further improving the problem that the existing intelligent blasting monitoring system for tunnel construction is not well adaptable to the construction environment; the rubber pad can provide additional cushioning and shock absorption effects, reduce the direct impact of vibration on the outer casing, and increase the friction coefficient between the support frame and the ground.

[0020] Preferably, the lower bottom of the support frame is bent to form a wave shape.

[0021] By adopting the above technical solution, the wavy bent lower bottom can adapt to the unevenness of the ground, provide a wider contact area, increase friction, and thus improve the grip and stability of the support frame on irregular surfaces.

[0022] Preferably, the buffer assembly includes a ball joint and a damper, the fixed portion of the ball joint is connected to the housing, the movable portion of the ball joint is connected to the fixed end of the damper, and the movable end of the damper is connected to the support frame.

[0023] By adopting the above technical solution, through the combination of ball joints and dampers, the buffer assembly can achieve a more complex shock absorbing path and better shock absorbing effect; the ball joint allows multi-directional movement, while the damper controls and slows down, and the two work together to improve the shock absorbing performance of the buffer assembly.

[0024] Preferably, the buffer assembly is further provided with an elastic member, one end of the elastic member is connected to the housing, and the other end of the elastic member is connected to the movable part of the ball joint.

[0025] By adopting the above technical solution, the elastic part serves as a flexible connection, which can absorb and mitigate the vibration and impact caused by the explosion, and reduce the direct transmission of these external forces to the outer shell; the elastic part is respectively connected to the outer shell and the movable part of the ball joint, which can limit the excessive rotation of the ball joint and avoid the support frame connected to the ball joint from excessive tilting and causing collapse.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The shell is provided with honeycomb panels and buffer media, which can effectively absorb and disperse the shock waves generated during tunnel blasting, avoid physical damage to the monitoring elements inside the shell, and improve the problem that the existing intelligent blasting monitoring system for tunnel construction is not adaptable to the construction environment; the support mechanism enables the shell to be deployed in various terrains and conditions, and can perform preliminary shock absorption before the blasting vibration is transmitted to the monitoring element, thereby protecting the monitoring element from damage, further improving the problem that the existing intelligent blasting monitoring system for tunnel construction is not adaptable to the construction environment; the detector can realize real-time monitoring and data analysis of the blasting process, so that the construction team can understand the blasting effect in time, adjust the construction plan, and ensure construction safety;

[0028] 2. The shock-absorbing pad can further absorb and attenuate the impact energy before the shock wave generated by the blasting is transmitted to the monitoring element; the concave part ensures the spatial stability of the monitoring element, prevents displacement due to vibration, reduces the damage that may occur to the monitoring element due to direct contact with the hard surface, and further improves the problem that the existing intelligent blasting monitoring system for tunnel construction is not well adaptable to the construction environment;

[0029] 3. The sensor can be set on the outside of the shell through the bracket and connected to the monitoring element through the wire passing through the through hole, so that the operator can arrange the sensor without opening the shell, thereby preventing the intelligent blasting monitoring system for tunnel construction from being polluted by the environment, allowing the intelligent blasting monitoring system for tunnel construction to be applied to complex environments, and further improving the problem that the existing intelligent blasting monitoring system for tunnel construction has poor adaptability to the construction environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an intelligent blasting monitoring system for tunnel construction in an embodiment of the present application;

[0031] Figure 2 is a front view of an intelligent blasting monitoring system for tunnel construction in an embodiment of the present application;

[0032] Figure 3 It is a schematic diagram of the cross-sectional structure of the intelligent blasting monitoring system for tunnel construction in an embodiment of the present application.

[0033] Explanation of the reference numerals: 1. outer shell; 11. shock absorbing assembly; 111. honeycomb panel; 112. buffer medium; 113. shock absorbing pad; 12. shielding layer; 2. detector; 21. monitoring element; 22. sensor; 23. wire; 3. bracket; 4. supporting mechanism; 41. buffer assembly; 411. ball joint; 412. damper; 42. supporting frame; 43. elastic member; 5. rubber pad; 6. sealing ring. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] The present application embodiment discloses an intelligent blasting monitoring system for tunnel construction (hereinafter referred to as the monitoring system). Figure 1 The monitoring system includes a housing 1, a detector 2, a bracket 3 and a supporting mechanism 4.

[0036] like Figure 2 and Figure 3 As shown, the shell 1 is provided with a shock absorbing component 11, and the shock absorbing component 11 includes a honeycomb panel 111 and a buffer medium 112. The honeycomb panel 111 is connected to the shell 1, and the buffer medium 112 is arranged in the honeycomb panel 111. A shock absorbing pad 113 is arranged on a side of the honeycomb panel 111 away from the inner wall of the shell 1, and the middle part of the shock absorbing pad 113 is recessed for placing the monitoring element 21.

[0037] In the embodiment of the present application, the buffer medium 112 is specifically aerogel, and a number of aerogels are filled in the honeycombs of the honeycomb panel 111. Through the honeycomb panel 111 and the buffer medium 112, the shock waves generated during the tunnel blasting construction can be effectively absorbed and dispersed, thereby avoiding physical damage to the monitoring element 21 inside the outer shell 1, and improving the problem that the existing intelligent blasting monitoring system for tunnel construction has poor adaptability to the construction environment.

[0038] The shock-absorbing pad 113 is specifically a rubber pad 5. The shock-absorbing pad 113 is provided with a plurality of shock-absorbing pads 113, and the plurality of shock-absorbing pads 113 are integrally formed. The shock-absorbing pad 113 can further absorb and attenuate the impact energy before the shock wave generated by the blasting is transmitted to the monitoring element 21; the recess ensures the spatial stability of the monitoring element 21, prevents displacement due to vibration, reduces possible damage to the monitoring element 21 due to direct contact with the hard surface, and further improves the problem that the existing intelligent blasting monitoring system for tunnel construction has poor adaptability to the construction environment.

[0039] Please refer to Figure 1 and Figure 3 The outer wall of the shell 1 is provided with a shielding layer 12 for reducing external electromagnetic interference. The shielding layer 12 reduces electromagnetic interference, which can reduce the interference of external electromagnetic waves on the monitoring element 21, thereby ensuring the stability of the intelligent blasting monitoring system for tunnel construction in an environment with high electromagnetic interference, and further improving the problem that the existing intelligent blasting monitoring system for tunnel construction has poor adaptability to the construction environment.

[0040] A bracket 3 is arranged on the outer wall of the shielding layer 12, and the bracket 3 is provided with a groove for connecting with the sensor 22. A through hole for passing the power supply line 23 is opened on the side of the outer shell 1 close to the bracket 3, and the through hole is provided with a sealing ring 6. The sensor 22 can be arranged on the outside of the outer shell 1 through the bracket 3, and connected with the monitoring element 21 through the wire 23 passing through the through hole, so that the operator can arrange the sensor 22 without opening the outer shell 1, thereby preventing the intelligent blasting monitoring system for tunnel construction from being polluted by the environment, allowing the intelligent blasting monitoring system for tunnel construction to be applied to complex environments, and further improving the problem that the existing intelligent blasting monitoring system for tunnel construction has poor adaptability to the construction environment.

[0041] Optionally, the detector 2 includes a monitoring element 21 and a sensor 22. The monitoring element 21 is arranged in the housing 1 through the recesses of several shock-absorbing pads 113, and is connected to the sensor 22 through a wire 23 passing through a through hole. The sensor 22 can accurately capture the vibration signal generated by the blasting during tunnel construction. The detector 2 can monitor and analyze the data of the blasting process in real time based on the vibration signal, so that the construction team can understand the blasting effect in time, adjust the construction plan, and ensure construction safety.

[0042] In the embodiment of the present application, the monitoring element 21 is specifically a monitor, and the sensor 22 needs to be set according to the actual situation. The sensor 22 includes but is not limited to a vibration velocity sensor 22 or a strain gauge. In the embodiment of the present application, the type of the sensor 22 is specifically limited; the number of sensors 22 and the number of brackets 3 also need to be set according to the actual operation requirements. This application does not specifically limit the number of sensors 22 and the number of brackets 3. In the embodiment of the present application. Two sensors 22 and two brackets 3 are provided. The sensor 22 is movably plugged into the corresponding bracket 3, and the wires 23 connected to the sensor 22 are stored in the corresponding bracket 3.

[0043] like Figure 2 and Figure 3 As shown, the support mechanism 4 includes a buffer assembly 41 and a support frame 42, the support frame 42 is connected to the outer shell 1, and the buffer assembly 41 is arranged between the support frame 42 and the outer shell 1; the buffer assembly 41 includes a ball joint 411 and a damper 412, the fixed part of the ball joint 411 is connected to the outer shell 1, the movable part of the ball joint 411 is connected to the fixed end of the damper 412, and the movable end of the damper 412 is connected to the support frame 42.

[0044] like Figure 2 and Figure 3As shown, the combination of the ball joint 411 and the damper 412 can achieve a more complex shock-absorbing path and a better shock-absorbing effect, especially reducing vibration in the vertical direction; the ball joint 411 allows multi-directional movement, while the damper 412 controls and slows down the movement, and the two work together to improve the shock-absorbing performance of the buffer assembly 41; one end of the elastic member 43 is connected to the outer wall of the shield, and the other end of the elastic member 43 is connected to the movable part of the ball joint 411. The elastic member 43, as a flexible connection, can absorb and slow down the vibration and impact caused by the blasting, especially the vibration and impact in the horizontal direction, and reduce the vibration and impact in the horizontal direction from being directly transmitted to the housing 1.

[0045] At the same time, the elastic member 43 is respectively connected to the outer shell 1 and the movable part of the ball joint 411, which can limit the excessive rotation of the ball joint 411 and prevent the support frame 42 connected to the ball joint 411 from excessive tilting and causing collapse; the elastic member 43 is specifically a thermoplastic elastomer, one end of the thermoplastic elastomer is fixedly connected to the shielding layer 12, and the other end of the thermoplastic elastomer is ring-shaped, and the movable part of the ball joint 411 is penetrated on the thermoplastic elastomer through the ring of the thermoplastic elastomer.

[0046] In the embodiment of the present application, the support frame 42 is formed into an isosceles trapezoid by bending a metal strip, the upper base of the support frame 42 is connected to the buffer assembly 41, the lower base of the support frame 42 protrudes from the outer shell 1, a rubber pad 5 is provided on the side of the support frame 42 away from the buffer assembly 41, and the lower base of the support frame 42 is bent to form a wave shape.

[0047] The isosceles trapezoidal support frame 42 provides a lower center of gravity and a larger support area, which enhances the stability of the entire monitoring system and enables it to be firmly installed in an uneven or dynamically changing tunnel construction environment, further improving the problem that the existing intelligent blasting monitoring system for tunnel construction is not well adaptable to the construction environment; the rubber pad 5 can provide additional cushioning and shock absorption effects, reduce the direct impact of vibration on the outer shell 1, and increase the friction coefficient between the support frame 42 and the ground. The wavy bent bottom can adapt to the unevenness of the ground, provide a wider contact area, and increase friction, thereby improving the grip and stability of the support frame 42 on irregular surfaces.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An intelligent blasting monitoring system for tunnel construction, characterized in that: include: A housing (1) is provided with a shock absorbing component (11), wherein the shock absorbing component (11) comprises a honeycomb panel (111) and a buffer medium (112), wherein the honeycomb panel (111) is connected to the housing (1), and the buffer medium (112) is arranged in the honeycomb panel (111); A support mechanism (4) comprising a buffer component (41) and a support frame (42), wherein the support frame (42) is connected to the housing (1), and the buffer component (41) is arranged between the support frame (42) and the housing (1); The detector (2) comprises a monitoring element (21) and a sensor (22), wherein the monitoring element (21) is connected to the housing (1), and the sensor (22) is electrically connected to the monitoring element (21) via an electric wire (23).

2. The intelligent blasting monitoring system for tunnel construction according to claim 1 is characterized in that: A shock-absorbing pad (113) is provided on a side of the honeycomb panel (111) away from the inner wall of the outer shell (1), and the middle part of the shock-absorbing pad (113) is concave.

3. The intelligent blasting monitoring system for tunnel construction according to claim 2 is characterized in that: A bracket (3) is also provided on the outer wall of the housing (1), and the bracket (3) is provided with a groove for connecting to the sensor (22). A through hole for the wire (23) to pass through is provided on a side of the housing (1) close to the bracket (3), and the through hole is provided with a sealing ring (6).

4. The intelligent blasting monitoring system for tunnel construction according to claim 3 is characterized in that: The outer wall of the housing (1) is provided with a shielding layer (12) for reducing external electromagnetic interference.

5. The intelligent blasting monitoring system for tunnel construction according to claim 1 is characterized in that: The support frame (42) is in the shape of an isosceles trapezoid; the upper base of the support frame (42) is connected to the buffer assembly (41); the lower base of the support frame (42) protrudes from the housing (1); and a rubber pad (5) is provided on a side of the support frame (42) away from the buffer assembly (41).

6. The intelligent blasting monitoring system for tunnel construction according to claim 5 is characterized in that: The lower bottom of the support frame (42) is bent into a wave shape.

7. The intelligent blasting monitoring system for tunnel construction according to claim 1 is characterized by: The buffer assembly (41) comprises a ball joint (411) and a damper (412), wherein the fixed portion of the ball joint (411) is connected to the housing (1), the movable portion of the ball joint (411) is connected to the fixed end of the damper (412), and the movable end of the damper (412) is connected to the support frame (42).

8. The intelligent blasting monitoring system for tunnel construction according to claim 7 is characterized in that: The buffer assembly (41) is further provided with an elastic member (43), one end of the elastic member (43) is connected to the housing (1), and the other end of the elastic member (43) is connected to the movable part of the ball joint (411).

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