Vibration monitoring system and monitoring method applied to rock fracturing

Abstract

The invention provides a vibration monitoring system and monitoring method applied to rock fracturing, and belongs to the field of vibration monitoring. The vibration monitoring system comprises a plurality of sensors, an intermediate adaptive amplifier and a recording, storing, analyzing and processing instrument; the intermediate adaptive amplifier is electrically connected with the plurality of sensors, and the recording, storing, analyzing and processing instrument is connected with the intermediate adaptive amplifier; a plurality of sensors are arranged on the rock surface between the rock fracturing area and the foundation pit diaphragm wall, the horizontal surface of the foundation pit diaphragm wall and the vertical support in the foundation pit. The invention aims to solve the problem that a vibration monitoring system applied to rock cracking in the prior art cannot monitor an underground diaphragm wall or a vertical support. The technical effect is that reliable and comprehensive monitoring of the diaphragm wall and the vertical support is realized.

Description

Technical Field

[0001] The present invention relates to the field of vibration monitoring technology, in particular to a vibration monitoring system applied to rock fracturing, and also to a vibration monitoring method applied to rock fracturing. Background Art

[0002] The rock inside the foundation pit, adjacent to the surrounding diaphragm walls, and the central vertical support all need to be broken and excavated. Although the vibration effect generated by phase change cracking is much lower than that of explosive blasting, it may still affect safety. Therefore, it is necessary to monitor the vibration generated by phase change cracking of the rock.

[0003] However, existing phase change rock cracking vibration monitoring devices mainly monitor the vibration of rocks between adjacent blastholes, rocks around the cracking center, and the free surface of rocks, and are unable to monitor ground-connected walls or vertical supports. This will undoubtedly affect the mechanical stability of ground-connected walls or vertical supports, and thus affect subsequent construction. Summary of the Invention

[0004] The present invention provides a vibration monitoring system and a monitoring method for rock fracturing, which are used to solve the defect that the vibration monitoring system for rock fracturing in the prior art cannot monitor the ground-connected wall or vertical support, and realize reliable and comprehensive monitoring of the ground-connected wall and vertical support.

[0005] A first embodiment of the present invention provides a vibration monitoring system for rock fracturing, comprising a plurality of sensors, an intermediate adaptation amplifier, and a recording, storage, analysis, and processing instrument; The intermediate adapter amplifier is electrically connected to the plurality of sensors, and the recording, storage, analysis and processing instrument is connected to the intermediate adapter amplifier; Multiple sensors are arranged on the rock surface between the rock fracture area and the foundation pit diaphragm wall, the horizontal surface of the foundation pit diaphragm wall, and the vertical support inside the foundation pit.

[0006] In addition, the vibration monitoring system for rock fracturing according to the present invention may also have the following additional technical features: In some embodiments of the present invention, the intermediate adaptation amplifier includes a signal modulation amplifier; The plurality of sensors are electrically connected to the signal modulation amplifier.

[0007] In some embodiments of the present invention, a computer, a recording, storage, analysis and processing instrument and / or an intermediate adaptation amplifier are also included and are connected to the computer for communication. In some embodiments of the present invention, the intermediate adaptation amplifier further comprises a portable amplified recorder; The plurality of sensors are electrically connected to a portable amplified recorder; The portable amplified recorder is connected in parallel with the signal modulation amplifier; The portable amplified recorder is connected to the computer for communication.

[0008] In some embodiments of the present invention, the recording, storage, analysis and processing instrument includes an oscilloscope, a tape recorder and a data acquisition instrument; The oscilloscope, the tape recorder and the data acquisition instrument are all electrically connected to the signal modulation amplifier; The oscilloscope, tape recorder and data acquisition instrument are connected in parallel; The tape recorder is connected to the computer for communication.

[0009] In some embodiments of the present invention, further comprising a power supply; The computer, the plurality of sensors, the signal modulation amplifier, the portable amplifying recorder, the oscilloscope, the tape recorder and the data acquisition instrument are all electrically connected to the power supply.

[0010] In some embodiments of the present invention, sensors are provided at different horizontal distances from the crack center of the cracking area on the horizontal surface of the foundation pit ground connection wall; Sensors are installed at different heights of the vertical supports in the foundation pit.

[0011] In some embodiments of the present invention, the number of sensors arranged is gradually increased from the horizontal surface of the foundation pit ground connection wall to the crack center of the crack area.

[0012] In some embodiments of the present invention, the distance between two adjacent sensors in the plurality of sensors is distributed in a logarithmic pattern.

[0013] According to an embodiment of the second aspect of the present invention, a vibration monitoring method for rock fracturing is provided, comprising all the technical features of the vibration monitoring system for rock fracturing according to the embodiment of the first aspect of the present invention, and further comprising the following steps: Step S100: Arrange multiple sensors before rock fracturing; Step S200: connecting multiple sensors, a signal modulation amplifier, a portable amplifier recorder, an oscilloscope, a tape recorder, a data acquisition instrument, and a computer in sequence; Step S300: protecting multiple sensors; Step S400: Power on and test the connected multiple sensors, signal modulation amplifier, portable amplifier recorder, oscilloscope, tape recorder, data acquisition instrument, and computer; Step S500: rock fracturing begins, and multiple sensors work to monitor the vibration data of rock fracturing in real time; Step S600: recording vibration data after each rock fracturing is completed; Step S700: performing a comprehensive comparative analysis of the vibration data with the displacement of retaining piles, support axial force, groundwater level, ground settlement, and horizontal displacement polarity of deep soil; Step S800: Monitoring is completed.

[0014] In summary, the present application includes the following beneficial technical effects: by arranging multiple sensors on the rock surface between the rock fracture area and the foundation pit ground connection wall, the horizontal surface of the foundation pit ground connection wall, and the vertical support inside the foundation pit, real-time monitoring of the ground connection wall and the vertical support inside the foundation pit can be achieved, thereby ensuring the mechanical stability of the ground connection wall and the vertical support, and ensuring the normal progress of subsequent construction.

[0015] In addition, the original vibration information is converted into the required information through multiple sensors. The intermediate adapter amplifier filters the weak signal converted by the sensor, performs impedance transformation processing, amplifies it, and inputs it into the recording, storage, analysis and processing instrument to process and analyze the vibration situation, so as to achieve reliable monitoring of the vibration information and ensure the smooth progress of subsequent construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings: Figure 1 The overall schematic diagram of a vibration monitoring system applied to rock fracturing according to some embodiments of the present invention is schematically shown.

[0017] Figure 2 Schematically illustrating a sub-schematic diagram of a vibration monitoring system applied to rock fracturing according to some embodiments of the present invention.

[0018] Reference numerals: 1. Sensor, 2. Intermediate adapter amplifier, 21. Signal modulation amplifier, 22. Portable amplifier recorder, 3. Recording, storage, analysis and processing instrument, 31. Oscilloscope, 32. Tape recorder, 33. Data acquisition instrument, 4. Computer, 5. Power supply. DETAILED DESCRIPTION

[0019] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0020] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an", and "" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of the stated features, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0021] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0022] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" may include both above and below orientations. The device may be otherwise oriented rotated 90 degrees or in other orientations and the spatially relative descriptors used herein are interpreted accordingly.

[0023] like Figure 1 and Figure 2 As shown, according to an embodiment of the first aspect of the present invention, a vibration monitoring system for rock fracturing is proposed, comprising a plurality of sensors 1, an intermediate adaptation amplifier 2, and a recording, storage, analysis and processing instrument 3; The intermediate adaptation amplifier 2 is electrically connected to the plurality of sensors 1, and the recording, storage, analysis and processing instrument 3 is electrically connected to the intermediate adaptation amplifier 2; A plurality of sensors 1 are arranged on the rock surface between the rock fracture area and the foundation pit diaphragm wall, the horizontal surface of the foundation pit diaphragm wall and the vertical support inside the foundation pit.

[0024] In the above embodiment, it should be noted that the multiple sensors 1 are all vibration sensors.

[0025] The foundation pit diaphragm wall is the side wall around the foundation pit.

[0026] The vertical support inside the foundation pit is the vertical support of the existing technology, which is mainly used to bear the force transmitted from the horizontal support of the foundation pit and the loads such as soil pressure and water pressure on the side walls of the foundation pit transmitted through the horizontal support, and transfer these loads to the foundation to ensure the stability of the foundation pit support structure and prevent deformation and collapse of the side walls of the foundation pit.

[0027] The foundation pit diaphragm wall is the underground continuous wall of the foundation pit, which is used to withstand the soil pressure and water pressure outside the foundation pit, provide a stable support structure for the foundation pit excavation, prevent the collapse of the foundation pit side wall, and ensure the safety of construction in the foundation pit.

[0028] The technical effect achieved by the above embodiment is: by arranging multiple sensors 1 on the rock surface between the rock fracture area and the foundation pit ground connection wall, the horizontal surface of the foundation pit ground connection wall and the vertical support inside the foundation pit, real-time monitoring of the ground connection wall and the vertical support inside the foundation pit can be achieved, thereby ensuring the mechanical stability of the ground connection wall and the vertical support, and ensuring the normal progress of subsequent construction.

[0029] In addition, the original vibration information is converted into the required information through multiple sensors 1. The intermediate adaptation amplifier filters the weak signal converted by the sensor, performs impedance transformation processing, amplifies it, and inputs it into the recording, storage, analysis and processing instrument to process and analyze the vibration situation, so as to realize the reliable monitoring of the vibration information and ensure the smooth progress of subsequent construction.

[0030] Optional, such as Figure 1 and Figure 2 As shown, the intermediate adaptation amplifier 2 includes a signal modulation amplifier 21; The multiple sensors 1 are all electrically connected to the signal modulation amplifier 21 .

[0031] In the above optional embodiments, it should be noted that the signal modulation amplifier 21 adopts the signal modulation amplifier 21 in the prior art; there are multiple signal modulation amplifiers 21, and each signal modulation amplifier 21 is a multi-channel integrated modular signal modulation amplifier; one signal modulation amplifier 21 can be electrically connected to at least one sensor 1, and can also be electrically connected to multiple sensors 1; multiple signal modulation amplifiers 21 are all electrically connected to the recording, storage, analysis and processing instrument 3.

[0032] The beneficial effect of the above optional embodiment is: the signal of the sensor 1 can be amplified by the setting of the signal modulation amplifier 21, and converted into a signal that is more suitable for transmission through its unique modulation technology, thereby ensuring that the vibration conditions monitored by the sensor 1 are transmitted to the recording, storage, analysis and processing instrument 3 in real time, accurately and quickly.

[0033] Optional, such as Figure 1 and Figure 2 As shown, a computer 4 is also included, and the recording, storage, analysis and processing device 3 and / or the intermediate adaptation amplifier 2 are communicatively connected to the computer 4 .

[0034] In the above optional embodiment, it should be noted that multiple computers 4 can be provided to ensure reliable data processing.

[0035] The beneficial effect of the above optional embodiment is that the information transmitted by the recording, storage, analysis and processing instrument 3 or the intermediate adaptation amplifier 2 can be processed and recorded through the setting of the computer 4 for real-time viewing by staff, which is relatively convenient and quick.

[0036] Optional, such as Figure 1 and Figure 2 As shown, the intermediate adaptation amplifier 2 further includes a portable amplification recorder 22; The plurality of sensors 1 are all electrically connected to the portable amplifying recorder 22; The portable amplifying recorder 22 is connected in parallel with the signal modulating amplifier 21; The portable amplifying recorder 22 is communicatively connected to the computer 4 .

[0037] In the above optional embodiment, it should be noted that the number of portable amplifying recorders 22 is the same as the number of signal modulation amplifiers 21. They can be used in conjunction with the signal modulation amplifier 21 to achieve one backup and one use, or they can be used in conjunction with the signal modulation amplifier 21; the portable amplifying recorder 22 also adopts a multi-channel portable amplifying recorder.

[0038] The beneficial effect of the above optional embodiment is: by using the portable amplifying recorder 22 in conjunction with the signal modulation amplifier 21, the respective advantages are brought into play in the signal acquisition, transmission and analysis process, thereby improving the performance and applicability of the intermediate adaptation amplifier 2 to ensure the accuracy of rock fracturing on-site monitoring.

[0039] Specifically, first, the weak signal collected by sensor 1 is amplified and modulated by signal modulation amplifier 21, making it suitable for transmission or subsequent processing. The modulated signal is then collected and recorded with high precision using portable amplifier recorder 22. This increases the amplitude and signal-to-noise ratio (SNR) of the weak signal using signal modulation amplifier 21, ensuring that portable amplifier recorder 22 can capture high-quality signals.

[0040] Second, the modulation technology of the signal modulation amplifier 21 can be used to convert the vibration signal monitored by the sensor 1 into a form suitable for transmission, reducing attenuation and interference during the transmission process. Then, a portable amplifier recorder is used to receive the modulated signal and demodulate and record it, thereby achieving a stronger anti-interference ability of the modulated signal during transmission, which is suitable for transmission over long distances or in complex environments, and meets the use requirements of rock fracturing sites.

[0041] Optional, such as Figure 1 and Figure 2 As shown, the recording, storage, analysis and processing instrument 3 includes an oscilloscope 31, a tape recorder 32 and a data acquisition device 33; The oscilloscope 31, the tape recorder 32 and the data acquisition device 33 are all electrically connected to the signal modulation amplifier 21; The oscilloscope 31, the tape recorder 32 and the data acquisition device 33 are connected in parallel with each other; The tape recorder 32 is communicatively connected to the computer 4 .

[0042] In the above optional embodiments, it should be noted that the number of oscilloscopes 31, tape recorders 32 and data acquisition devices 33 is multiple and the number of the three is the same; each tape recorder 32, each oscilloscope 31 and each data acquisition device 33 needs to have multiple channels to meet the signal transmission with multiple signal modulation amplifiers 21.

[0043] The beneficial effects of the above optional embodiments are: since the oscilloscope 31 can quickly capture transient changes in the signal, the tape recorder can save the signal for a long time, and the data acquisition instrument can digitally process and analyze the signal, the coordinated setting of the oscilloscope 31, the tape recorder 32 and the data acquisition instrument 33 can cover the entire process from signal capture, storage to analysis.

[0044] In addition, the signal is monitored in real time by an oscilloscope 31 to ensure signal quality; the tape recorder 32 backs up the original analog signal to prevent data loss; and the data acquisition instrument 33 provides high-precision digitized data to improve the integrity and reliability of the data transmitted to the computer 4.

[0045] Furthermore, the oscilloscope 31 is used to quickly locate the problem, the tape recorder 32 saves the original data for subsequent in-depth analysis, and the data acquisition device 33 provides a comprehensive analysis tool, thereby enabling a comprehensive analysis of the vibration conditions monitored by the sensor 1.

[0046] Finally, the sensor signal from the sensor 1 is quickly checked through the oscilloscope 31, the tape recorder 32 records environmental data such as temperature and humidity for a long time, and the data acquisition instrument 33 is used to generate statistical reports, which makes it convenient for staff to view data in real time and find related data, which is very convenient and fast.

[0047] In summary, by using an oscilloscope, tape recorder, and data acquisition instrument together, the entire process from signal capture, storage, to analysis can be optimized, significantly improving the performance and applicability of the system and meeting the needs of more complex scenarios.

[0048] Optional, such as Figure 1 and Figure 2 As shown, a power supply 5 is also included; The computer 4 , the multiple sensors 1 , the signal modulation amplifier 21 , the portable amplifier recorder 22 , the oscilloscope 31 , the tape recorder 32 and the data acquisition device 33 are all electrically connected to the power supply 5 .

[0049] The beneficial effect of the above optional embodiment is that the power supply 5 can be set to provide real-time power to the computer 4, multiple sensors 1, signal modulation amplifier 21, portable amplifying recorder 22, oscilloscope 31, tape recorder 32 and data acquisition instrument 33 to ensure the reliable operation of the computer 4, multiple sensors 1, signal modulation amplifier 21, portable amplifying recorder 22, oscilloscope 31, tape recorder 32 and data acquisition instrument 33.

[0050] Optional, such as Figure 1 and Figure 2 As shown, sensors 1 are provided at different horizontal distances from the crack center of the cracking area on the horizontal surface of the foundation pit diaphragm wall; Sensors 1 are provided at different height positions of the vertical supports in the foundation pit.

[0051] In the above optional embodiment, it should be noted that at least two sensors 1 are arranged at each height position where a sensor 1 is arranged on each vertical support arrangement in the foundation pit.

[0052] At least two sensors 1 are arranged at each of the different horizontal distances from the crack center of the crack area on the horizontal plane of the foundation pit ground connection wall, and the closer to the crack center of the crack area, the more sensors 1 are arranged.

[0053] The beneficial effect of the above optional embodiment is: by arranging sensors 1 at different horizontal distances from the fracture center of the fracture area on the horizontal plane of the foundation pit ground connection wall and arranging sensors 1 at different height positions of the vertical support in the foundation pit, comprehensive monitoring of the areas that may be affected by rock fracture is achieved to ensure safety.

[0054] Optional, such as Figure 1 and Figure 2 As shown, the number of sensors 1 arranged gradually increases from the horizontal surface of the foundation pit ground connection wall to the crack center of the crack area.

[0055] The beneficial effect of the above optional embodiment is that the number of sensors 1 arranged gradually increases from the horizontal surface of the foundation pit ground connection wall to the crack center of the crack area, and the arrangement facilitates the determination of the area with strong vibration and the change law of vibration intensity with the crack center.

[0056] Optional, such as Figure 1 and Figure 2 As shown, the distance between two adjacent sensors 1 among the multiple sensors 1 is distributed in a logarithmic pattern.

[0057] In the above optional embodiment, it should be noted that, specifically, the distance between two adjacent sensors 1 presents a logarithmic law means that in a series of sensors 1 , the distance between two adjacent sensors 1 changes in accordance with the law of a logarithmic function.

[0058] In addition, each sensor 1 needs to be installed firmly and protected. The specific installation method is: if the sensor 1 is installed on hard rock, a platform is modified on the rock surface and a concrete pier is cast; if the rock is weathered, the weathered rock layer is removed and a concrete pier is cast; if the sensor 1 happens to be installed on soil, the soil surface needs to be loosened and compacted, covered with sand or gravel, and then a concrete pier is cast.

[0059] Then install the sensor 1 on the concrete pier. The specific installation methods can be as follows: First, epoxy mortar, epoxy resin or other strong adhesives can be used. In dry conditions, gypsum, water glass and other materials can also be used to fix the sensor 1 on the corresponding concrete pier.

[0060] Second, when pouring the concrete pier, first embed the fixing bolts, and then use the pressure plate to fasten the sensor 1 base plate to the embedded bolts.

[0061] Third, if the sensor 1 used has a bolt and is located on the surface of sand, the long screw on the sensor 1 needs to be fully inserted into the sand to be measured so that the sensor 1 is tightly connected to the sand.

[0062] After the sensor 1 is installed, it is protected by a prefabricated concrete or metal box to ensure its performance.

[0063] The beneficial effect of the above optional embodiment is that by arranging the distances between two adjacent sensors 1 in a logarithmic distribution, complete data of the vibration waves generated by rock fracturing at different distances can be effectively obtained, which provides more accurate and comprehensive data support for analyzing the propagation mechanism of the vibration waves generated by rock fracturing, evaluating the impact of the vibration waves generated by fracturing on different areas, etc., and helps the staff to make corresponding adjustments to the construction methods to ensure construction safety and efficiency.

[0064] According to an embodiment of the second aspect of the present invention, a vibration monitoring method for rock fracturing is provided, which includes all the technical features of the vibration monitoring system for rock fracturing according to the embodiment of the first aspect of the present invention, and further includes the following steps: Step S100: Arrange multiple sensors 1 before rock fracturing; Step S200: connecting the plurality of sensors 1, the signal modulation amplifier 21, the portable amplifier recorder 22, the oscilloscope 31, the tape recorder 32, the data acquisition device 33 and the computer 4 in sequence; Step S300: protecting multiple sensors 1; Step S400: Power on and test the connected multiple sensors 1, signal modulation amplifier 21, portable amplifier recorder 22, oscilloscope 31, tape recorder 32, data acquisition instrument 33 and computer 4; Step S500: rock fracturing begins, and multiple sensors 1 work to monitor the vibration data of rock fracturing in real time; Step S600: recording vibration data after each rock fracturing is completed; Step S700: performing a comprehensive comparative analysis of the vibration data with the displacement of retaining piles, support axial force, groundwater level, ground settlement, and horizontal displacement polarity of deep soil; Step S800: Monitoring is completed.

[0065] In the above optional embodiment, it should be noted that in step S600: after each test, the vibration data should be promptly compiled to determine the vibration level caused by phase change cracking on the diaphragm wall and vertical supports in the foundation pit. This data should be promptly compared and analyzed with other monitoring system data, such as retaining pile displacement, support axial force, groundwater level, ground subsidence, and horizontal displacement of deep soil, to comprehensively determine the substantial impact of phase change cracking vibration on the diaphragm wall and other targets. If an indicator in the linkage monitoring system reaches a warning value, the protective layer thickness should be increased or the phase change cracking construction hole layout plan should be adjusted. In serious cases, the phase change cracking construction work should be immediately stopped.

[0066] The beneficial effect of the above optional embodiment is that the above monitoring method can reliably, accurately and comprehensively monitor the impact of rock fracturing vibration on the surrounding environment to ensure construction safety.

[0067] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A vibration monitoring system for rock fracturing, characterized in that: It includes a plurality of sensors (1), an intermediate adapting amplifier (2), and a recording, storage, analysis and processing instrument (3); The intermediate adaptation amplifier (2) is electrically connected to the plurality of sensors (1), and the recording, storage, analysis and processing instrument (3) is electrically connected to the intermediate adaptation amplifier (2); A plurality of sensors (1) are arranged on the rock surface between the rock fracture area and the foundation pit ground connection wall, the horizontal surface of the foundation pit ground connection wall, and the vertical support inside the foundation pit.

2. The vibration monitoring system for rock fracturing according to claim 1, characterized in that: The intermediate adaptation amplifier (2) includes a signal modulation amplifier (21); The plurality of sensors (1) are all electrically connected to the signal modulation amplifier (21).

3. The vibration monitoring system for rock fracturing according to claim 2, characterized in that: It also includes a computer (4), and the recording, storage, analysis and processing instrument (3) and / or the intermediate adaptation amplifier (2) are communicatively connected to the computer (4).

4. The vibration monitoring system for rock fracturing according to claim 3, characterized in that: The intermediate adaptation amplifier (2) further includes a portable amplification recorder (22); The plurality of sensors (1) are all electrically connected to the portable amplifying recorder (22); The portable amplifying recorder (22) is connected in parallel with the signal modulating amplifier (21); The portable amplifying recorder (22) is communicatively connected to the computer (4).

5. The vibration monitoring system for rock fracturing according to claim 4, characterized in that: The recording, storage, analysis and processing instrument (3) includes an oscilloscope (31), a tape recorder (32) and a data acquisition instrument (33); The oscilloscope (31), the tape recorder (32) and the data acquisition device (33) are all electrically connected to the signal modulation amplifier (21); The oscilloscope (31), the tape recorder (32) and the data acquisition device (33) are connected in parallel with each other; The tape recorder (32) is communicatively connected to the computer (4).

6. The vibration monitoring system for rock fracturing according to claim 5, characterized in that: Also includes a power supply (5); The computer (4), the plurality of sensors (1), the signal modulation amplifier (21), the portable amplifier recorder (22), the oscilloscope (31), the tape recorder (32) and the data acquisition instrument (33) are all electrically connected to the power supply (5).

7. The vibration monitoring system for rock fracturing according to any one of claims 1 to 6, characterized in that: The sensors (1) are arranged on the horizontal surface of the foundation pit ground connection wall at different horizontal distances from the crack center of the cracking area; The sensors (1) are arranged at different height positions of the vertical supports in the foundation pit.

8. The vibration monitoring system for rock fracturing according to claim 7, characterized in that: The number of the sensors (1) arranged is gradually increased from the horizontal surface of the foundation pit ground connection wall to the crack center of the crack area.

9. The vibration monitoring system for rock fracturing according to claim 7, characterized in that: The distance between two adjacent sensors (1) in the plurality of sensors (1) is distributed in a logarithmic pattern.

10. A vibration monitoring method for rock fracturing, characterized in that: The vibration monitoring system for rock fracturing according to any one of claims 1 to 9 further comprises the following steps: Step S100: Arrange multiple sensors (1) before rock fracturing; Step S200: connecting a plurality of sensors (1), a signal modulation amplifier (21), a portable amplifier recorder (22), an oscilloscope (31), a tape recorder (32), a data acquisition device (33), and a computer (4) in sequence; Step S300: protecting the plurality of sensors (1); Step S400: Power on the connected multiple sensors (1), signal modulation amplifier (21), portable amplifier recorder (22), oscilloscope (31), tape recorder (32), data acquisition instrument (33) and computer (4) for testing; Step S500: rock fracturing begins, and multiple sensors (1) work to monitor the vibration data of rock fracturing in real time; Step S600: recording vibration data after each rock fracturing is completed; Step S600: performing a comprehensive comparative analysis of the vibration data with the displacement of retaining piles, support axial force, groundwater level, ground settlement, and horizontal displacement polarity of deep soil; Step S700: Monitoring is completed.

Images