Device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering
By designing a multi-module device for blasting engineering, simultaneous monitoring of internal vibration and dynamic strain of rock mass is achieved, and the problem that the existing technology cannot fully understand rock mass damage mechanism and predict geological disasters is solved, providing a more comprehensive data analysis and economic monitoring effects.
Patent Information
- Application Number
- CN202411332213.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2024-12-27
AI Technical Summary
In blasting engineering, it is difficult for the existing technology to simultaneously monitor vibration and dynamic strain inside the rock mass, and traditional methods cannot fully understand the rock mass damage mechanism and predict geological disaster risks.
A device including a dynamic strain monitoring module, a vibration monitoring module, a Pogo Pin connection module and a data storage module was designed. By combining multiple cylinders, strain gauges, sensors, data transmission lines and data storage units, the internal vibration of the rock body and Simultaneous monitoring and data acquisition of dynamic strains.
It realizes simultaneous monitoring of internal vibration and dynamic strain of rock mass, provides more comprehensive data analysis, helps to evaluate blasting effect and rock mass stability, and is economical and easy to recover.
Smart Images
Figure CN119197746A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of blasting engineering, in particular to a device for monitoring internal vibration and dynamic strain of a rock mass in blasting engineering. Background Art
[0002] In the field of blasting engineering, especially in large-scale mining, tunneling and earthwork excavation, blasting technology has been widely used due to its high efficiency and economy. However, the powerful energy released during the blasting process not only directly acts on the target rock mass, but also has a significant impact on the surrounding rock mass. Measuring the vibration and dynamic strain of the surrounding rock mass is crucial for evaluating the blasting effect, predicting the scope of rock mass damage, ensuring the stability of the construction area and the smooth progress of subsequent projects. At present, the monitoring of blasting vibration and dynamic strain at the engineering site is not only in a relatively independent state, but also has a single monitoring range and application scenarios. For example, traditional blasting vibration monitoring methods mainly focus on the measurement of ground vibration velocity, and capture the vibration waves generated by blasting through sensors arranged on the surface. Although this method can reflect a certain impact of blasting on the external environment, it cannot directly and accurately monitor the vibration inside the surrounding rock mass. The testing technology of rock mass dynamic strain mainly focuses on laboratory scenarios, and direct monitoring of rock mass dynamic strain at the engineering site is still relatively scarce. The vibration and dynamic strain inside the rock mass contain complex and critical information. By linking them, we can have a more comprehensive understanding of the rock mass failure mechanism and assess possible geological disasters. Therefore, in order to have a more comprehensive and in-depth understanding of the response characteristics of the surrounding rock mass during blasting, it is particularly important to develop a device that can directly monitor the vibration and dynamic strain inside the rock mass. Summary of the invention
[0003] In view of the deficiencies of the prior art, the present invention provides a device for monitoring the internal vibration and dynamic strain of rock mass in blasting engineering, which solves the above problems.
[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:
[0005] A device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering, specifically comprising:
[0006] M1, dynamic strain monitoring module, composed of multiple cylinders, strain wiring panels, round rubber connectors and bottom covers. A single cylinder includes a round cylinder, a base, a strain gauge, a strain data transmission line, a positioning groove, a wiring hole, a wiring groove, a square mortise and tenon jack, and a mortise and tenon female groove;
[0007] M2, vibration monitoring module, composed of multiple cylinders, vibration wiring panels and square rubber connectors. A single cylinder includes a square cylinder with mortise and tenon male heads, a three-axis vibration sensor, vibration sensor fixing screws, and a vibration data transmission line;
[0008] M3, Pogo Pin connection module, including square cover, front contact panel, concave Pogo Pin female socket, round socket, rear wiring panel, terminal post, and positioning post;
[0009] M4, data storage module, including shell, power switch, USB3.0 interface, charging port, Pogo Pin body, PCB circuit board, data acquisition unit, data storage unit, power supply unit, and strong magnet.
[0010] Furthermore, the circular cylinder and the base in the M1 are fixed by arc welding, and the material is 45 steel.
[0011] Furthermore, the strain gauge in M1 is a resistance strain gauge, model BF120-5BA (11).
[0012] Furthermore, the strain gauge in M1 is pasted to the outer wall of the cylinder by HY-303 glue, and the pasting section is the cross-sectional circle in the middle part of a single cylinder. The pasting position starts from the 12 o'clock direction of the cross-sectional circle, and each 90° clockwise around the center of the circle is a pasting point, with a total of 4 pasting points, and 4 strain gauges are pasted.
[0013] Furthermore, the strain data transmission line in M1 is a copper core RVVSP twisted pair shielded line.
[0014] Furthermore, the strain gauge in the M1 is connected to the strain data transmission line by soldering, and the welded strain data transmission line passes through the wiring hole to the wiring groove, and then is connected to the strain wiring panel.
[0015] Furthermore, the positioning groove in M1 serves to position and insert the terminal in M3.
[0016] Furthermore, the mortise and tenon female groove in M1 is used to be tightly connected with the mortise and tenon male square cylinder in M2 to fix the mortise and tenon male square cylinder.
[0017] Furthermore, the strain wiring panel in the M1 is fixed to the circular cylinder by silicone sealant, is made of PC plastic, and includes a strain wiring jack and a square mortise and tenon socket.
[0018] Furthermore, the strain wiring panel in the M1 has a wiring metal sleeve attached to the inner wall of the strain wiring jack for connecting with the strain data transmission line extending from the cylinder.
[0019] Furthermore, the strain wiring panel in M1 has a strain wiring jack which is used to be inserted into the main wiring panel terminal in M3, thereby serving as a connection with the strain data transmission line.
[0020] Furthermore, the square mortise and tenon socket of the strain wiring panel in M1 serves as the jack entrance of the vibration monitoring module.
[0021] Furthermore, the bottom cover in the M1 is located on the last section of the circular cylinder and is used to seal the circular cylinder to prevent foreign objects from entering the circular cylinder.
[0022] Furthermore, the circular rubber connector in M1 is glued to the surface of the circular cylinder using JL-480 glue, which plays the role of connecting and sealing the two adjacent circular cylinders. At the same time, the rubber has a vibration isolation effect, avoiding the mutual vibration influence of the two adjacent circular cylinders.
[0023] Furthermore, the square cylinder of the mortise and tenon male head in the M2 is made of No. 45 steel, and each of the upper, lower, left and right sides thereof includes a strip-shaped mortise and tenon male head.
[0024] Furthermore, the three-axis vibration sensor in M2 is a piezoelectric IEPE square acceleration sensor, each of the top, bottom, left and right sides of which contains 1 screw hole, and each of the front and back sides contains 1 data connection hole, for a total of 4 screw holes and 2 data connection holes.
[0025] Furthermore, the three-axis vibration sensor in M2 needs to be fixed to the square cylinder of the mortise and tenon male head. The fixing method is: put the three-axis vibration sensor into the inside of the square cylinder of the mortise and tenon male head, make the four screw holes of the three-axis vibration sensor correspond to the four screw holes on the square cylinder of the mortise and tenon male head, and fix it with the vibration sensor fixing screws.
[0026] Furthermore, the vibration data transmission line in M2 is a copper core RVVSP twisted pair shielded line.
[0027] Furthermore, the vibration wiring panel in the M2 is fixed to the circular cylinder by a mortise and tenon structure, and fixed to the square cylinder with a mortise and tenon male head by a silicone sealant. It is made of PC plastic and includes a vibration wiring jack and a hook hole.
[0028] Furthermore, the vibration wiring panel in the M2 has a wiring metal sleeve attached to the inner wall of the vibration wiring jack for connecting to the vibration data transmission line extending from the cylinder.
[0029] Furthermore, the vibration wiring panel in M2 has a vibration wiring jack which is used to insert into the main wiring panel terminal in M3, thereby serving as a connection with the vibration data transmission line.
[0030] Furthermore, the hook hole of the vibration wiring panel in M2 is used to hang a hanging rope to facilitate the removal of the vibration monitoring module after the monitoring is completed.
[0031] Furthermore, the square rubber connector in M2 is glued to the inner surface of the mortise and tenon male square cylinder using JL-480 glue, which plays the role of connecting and sealing the two adjacent mortise and tenon male square cylinders. At the same time, the rubber has a vibration isolation effect, avoiding the mutual vibration influence of the two adjacent mortise and tenon male square cylinders.
[0032] Furthermore, the square cover and the round socket in the M3 are an integral whole and are made of No. 45 steel.
[0033] Furthermore, the Pogo Pin female socket in the M3 is embedded in the front contact panel of the square cover by punching.
[0034] Furthermore, the terminal posts in the M3 are welded to the front and rear sides of the rear wiring panel by arc welding, the front side is connected to the bottom of the Pogo Pin mother seat by connecting the transmission line, and the rear side is inserted into the strain wiring panel and vibration wiring panel jack for connecting the strain gauge and the three-axis vibration sensor.
[0035] Furthermore, the positioning posts in M3 are located on both sides of the circular socket and are used in conjunction with the positioning grooves in M1 to position and insert the terminal posts in M3.
[0036] Furthermore, the shell of the M4 includes a front panel and a rear shell, the front panel includes a power switch, a USB3.0 interface, and a charging port, and the rear shell includes a Pogo Pin needle body.
[0037] Furthermore, the USB 3.0 interface in the M4 is used for extracting storage data.
[0038] Furthermore, the maximum charging wattage of the charging port in the M4 is 67W.
[0039] Furthermore, the Pogo Pin body in the M4 includes a needle head and a pin.
[0040] Furthermore, the Pogo Pin needle body in the M4 is embedded in the rear cover of the shell by punching, with the needle head facing the outside of the shell and the pin foot connected to the data acquisition unit.
[0041] Furthermore, the PCB circuit board in the M4 is used to realize signal transmission and circuit connection of the data storage module.
[0042] Furthermore, the data acquisition unit in the M4 adopts a high-density channel PCI Express data acquisition card.
[0043] Furthermore, the data storage unit in the M4 adopts a high-speed solid-state hard drive with NVME2.0 protocol and PCIE4.0 interface.
[0044] Furthermore, the power supply unit in the M4 adopts a 18650 lithium-ion battery.
[0045] Furthermore, the powerful magnet in the M4 is made of neodymium iron boron magnet, which is located inside the rear cover and surrounds the rear cover, and is used to position and adsorb the square cover body in the M3, so that the needle tip of the Pogo Pin is in close contact with the concave Pogo Pin socket on the square cover body, forming a data transmission path.
[0046] A method for using a device for monitoring internal vibration and dynamic strain of a rock mass in a blasting project, the specific steps of which include:
[0047] S1. Determine the number of single cylinders of M1 and M2 according to the number of points required to be monitored inside the monitoring hole, and assemble M1 and M2 respectively;
[0048] S2, insert the assembled M2 into M1 along the mortise and tenon groove, and then push the whole into the monitoring hole, then inject grout along the hole wall, so that the grout wraps the M1 pipe wall, and wait for the grout to solidify;
[0049] S3, after the grouting solidifies, insert the circular socket of M3 into the circular cylinder of M1 along the positioning groove of M1. At this time, the terminal of M3 has also been inserted into the strain wiring panel of M1 and the vibration wiring panel of M2 by using the positioning groove to form a transmission connection;
[0050] S4, adsorb M4 on the square cover of M3, at this time, the needle tip of the Pogo Pin is in close contact with the concave Pogo Pin female seat on the square cover, forming a transmission path;
[0051] S5. Before blasting, turn on the power switch in M4 to start the monitoring device;
[0052] S6. After the monitoring is completed, turn off the power switch in M4, remove M4, pull out M3, and then use the hook hole of the vibration wiring panel in M2 to take out M2;
[0053] S7. Use the USB3.0 interface in M4 to export the stored data for subsequent analysis.
[0054] Compared with the prior art, the present invention has the following beneficial effects:
[0055] 1. It is difficult to realize the joint monitoring of on-site vibration and dynamic strain in the prior art. The present invention can simultaneously monitor the vibration and dynamic strain of the same position of the rock mass;
[0056] 2. It is difficult to realize the joint monitoring of the vibration and dynamic strain inside the rock mass on site with the existing technology. The present invention can simultaneously measure the vibration and dynamic strain inside the rock mass;
[0057] 3. In the prior art for measuring the internal vibration of the rock mass, the vibration sensor is difficult to recover after grouting. The present invention can recover the relatively expensive vibration sensor, leaving only the relatively cheap dynamic strain monitoring module, which has obvious economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0058] Figure 1 It is a schematic diagram of the overall combination of a device for monitoring the internal vibration and dynamic strain of a rock mass in a blasting project;
[0059] Figure 2 A schematic diagram of the splicing of a dynamic strain monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0060] Figure 3 A schematic diagram of a single cylinder of a dynamic strain monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0061] Figure 4 This is a front view of a single cylinder of a dynamic strain monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0062] Figure 5 This is a left view of a single cylinder of a dynamic strain monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0063] Figure 6 A top view of a single cylinder of a dynamic strain monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0064] Figure 7 A schematic diagram of the splicing of vibration monitoring modules of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0065] Figure 8 A schematic diagram of a single cylinder of a vibration monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0066] Fig. 9 A schematic diagram of a three-axis vibration sensor of a vibration monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0067] Fig.10 This is a front view of a single cylinder of a vibration monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0068] Fig.11This is a left view of a single cylinder of a vibration monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0069] Fig.12 A top view of a single cylinder of a vibration monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0070] Fig.13 It is a schematic diagram of a device for monitoring the internal vibration and dynamic strain of rock mass in blasting engineering, a combination of a vibration monitoring module, a dynamic strain monitoring module and a vibration monitoring module;
[0071] Fig.14 This is a combined cross-sectional diagram of a vibration monitoring module, a dynamic strain monitoring module and a vibration monitoring module for a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0072] Fig.15 This is a left view of a device for monitoring the internal vibration and dynamic strain of rock mass in blasting engineering, a vibration monitoring module, a dynamic strain monitoring module and a vibration monitoring module;
[0073] Fig.16 A schematic diagram of a strain wiring panel and a vibration wiring panel of a vibration monitoring module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0074] Fig.17 This is a schematic diagram of the Pogo Pin connection module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0075] Fig.18 This is a front view of the Pogo Pin connection module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0076] Fig.19 This is a left view of the Pogo Pin connection module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0077] Fig. 20 A top view of the Pogo Pin connection module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0078] Fig.21 A schematic diagram of a data storage module for a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0079] Fig. 22 This is a front view of a data storage module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0080] Fig.23This is a left view of a data storage module of a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering;
[0081] Fig.24 A top view of a data storage module for a device used to monitor internal vibration and dynamic strain of rock mass during blasting engineering.
[0082] In the figure: 100—dynamic strain monitoring module; 200—vibration monitoring module; 300—Pogo Pin connection module; 400—data storage module; 101—strain wiring panel; 102—round rubber connector; 103—bottom cover; 104—round cylinder; 105—base; 106—strain gauge; 107—strain data transmission line; 108—positioning slot; 109—wiring hole; 110—wiring slot; 111—square mortise and tenon jack; 112—mortise and tenon female slot; 113—strain wiring jack; 114—square mortise and tenon jack; 201—vibration wiring panel; 202—square rubber connector; 203—mortise and tenon male square cylinder; 204—three-axis vibration sensor; 205—screw hole; 206—data connection hole; 207—vibration sensor fixing screw; 208—vibration data transmission line; 209—vibration wiring jack; 210—hook hole; 301—square cover; 302—front contact panel; 303—concave Pogo Pin socket; 304—round socket; 305—rear wiring panel; 306—wiring post; 307—positioning post; 401—housing; 402—power switch; 403—USB3.0 interface; 404—charging port; 405—Pogo Pin body; 406—PCB circuit board; 407—data acquisition unit; 408—data storage unit; 409—power supply unit; 410—strong magnet. DETAILED DESCRIPTION
[0083] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. The specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.
[0084] Example:
[0085] Before the blasting operation, according to the number of points required to be monitored inside the designed monitoring hole, first determine and customize the number of cylinder components required for the dynamic strain monitoring module 100 and the vibration monitoring module 200 respectively to ensure that they can fully cover all key points in the preset monitoring hole. Subsequently, the two modules are precisely combined to ensure close cooperation between the components, laying the foundation for accurate data collection. Next, use drilling equipment to accurately drill a monitoring hole at a predetermined depth and position. Subsequently, the assembled dynamic strain monitoring module 100 and vibration monitoring module 200 are pushed into the hole as a whole, and high-strength grouting material is immediately injected along the hole wall to ensure that the pipe wall of the dynamic strain monitoring module 100 is completely wrapped and firmly fixed in the rock mass in the hole, waiting for the grouting material to completely solidify to form a stable monitoring environment. After the grouting solidifies, the circular socket 304 of the Pogo Pin connection module 300 is inserted along the positioning groove 108 of the dynamic strain monitoring module 100, and at the same time, its positioning mechanism is used to ensure that the terminal 306 of the Pogo Pin connection module 300 is accurately inserted into the strain wiring panel 101 of the dynamic strain monitoring module 100 and the vibration wiring panel 201 of the vibration monitoring module 200, so as to build a stable data transmission link. Subsequently, the data storage module 400 is firmly adsorbed on the square cover 301 of the Pogo Pin connection module 300 by magnetic attraction. At this time, the Pogo Pin needle body 405 inside the data storage module 400 is tightly fitted with the concave Pogo Pin female seat 303 on the square cover 301, forming an uninterrupted data transmission path, ensuring that the monitoring data can be accurately transmitted to the data storage module 400. Before the blasting operation is about to begin, turn on the power switch 402 in the data storage module 400 to activate the entire monitoring device so that it starts to record the dynamic strain and vibration data inside the rock body during the blasting process. After the blasting operation is completed, the power switch 402 of the data storage module 400 is immediately turned off to save power and protect the safety of the equipment. Then, according to the established procedure, the data storage module 400 is first removed, and then the Pogo Pin connection module 300 is gently pulled out, and finally the vibration monitoring module 200 is safely removed using the preset hook hole 210 on the vibration wiring panel 201 in the vibration monitoring module 200. Finally, the USB3.0 interface 403 equipped with the data storage module 400 is used to quickly export the monitoring data stored in the data storage unit 408 to a computer or professional analysis equipment, so as to carry out in-depth data processing and analysis in the future, and provide a scientific basis for blasting effect evaluation, rock mass stability research, etc.
[0086] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it should be understood that although this specification is described in accordance with the implementation mode, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering, characterized in that: It includes dynamic strain monitoring module, vibration monitoring module, Pogo Pin connection module and data storage module.
2. According to a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering in claim 1, the dynamic strain monitoring module is characterized in that the module is composed of multiple cylinders, strain wiring panels, circular rubber connectors and bottom covers, and a single cylinder specifically includes a circular cylinder, a base, a strain gauge, a strain data transmission line, a positioning groove, a wiring hole, a wiring groove, a square mortise and tenon jack and a mortise and tenon female groove.
3. According to claim 1, a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering, the circular cylinder and the base in the dynamic strain monitoring module are fixed by arc welding, and the material is 45 steel; the strain gauge is a resistance strain gauge, model BF120-5BA (11), and is pasted on the outer wall of the cylinder by HY-303 glue; the strain data transmission line is a copper core RVVSP twisted pair shielded line, which is connected to the strain gauge by soldering, and then leads to the wiring groove through the wiring hole, and then connected to the strain wiring panel; the strain wiring panel and the circular cylinder are fixed by silicone sealant, and include a strain wiring jack and a square mortise and tenon socket; the bottom cover is located on the last section of the circular cylinder, which is used to block the circular cylinder; the circular rubber connector is pasted on the surface of the circular cylinder using JL-480 glue, which plays the role of connecting and sealing two adjacent circular cylinders and has a vibration isolation effect.
4. According to a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering in claim 1, the vibration monitoring module is characterized in that the module is composed of a plurality of cylinders, a vibration wiring panel and a square rubber connector, and a single cylinder includes a square cylinder with a mortise and tenon male head, a three-axis vibration sensor, a vibration sensor fixing screw and a vibration data transmission line.
5. According to the device for monitoring the internal vibration and dynamic strain of rock mass in a blasting engineering described in claim 1, the material of the square cylinder of the mortise and tenon male head in the vibration monitoring module is 45 steel, which includes 4 strip-shaped mortise and tenon male heads; the three-axis vibration sensor is a piezoelectric IEPE square acceleration sensor, which is fixed inside the square cylinder of the mortise and tenon male head by a vibration sensor fixing screw; the vibration data transmission line is a copper core RVVSP twisted pair shielded line; the vibration wiring panel is fixed to the circular cylinder by a mortise and tenon structure, and is fixed to the square cylinder of the mortise and tenon male head by a silicone sealant, and includes a vibration wiring jack and a hook hole; the square rubber connector is pasted on the inner surface of the square cylinder of the mortise and tenon male head using JL-480 glue, which connects and seals the two adjacent square cylinders of the mortise and tenon male heads, and has a vibration isolation effect.
6. According to a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering in claim 1, the Pogo Pin connection module is characterized in that it includes a square cover, a front contact panel, a concave Pogo Pin female socket, a circular socket, a rear wiring panel, a wiring post and a positioning post.
7. According to a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering according to claim 1, the square cover body and the circular socket in the Pogo Pin connection module are an integral whole, and the material is 45 steel; the Pogo Pin mother seat is embedded in the front contact panel of the square cover body by punching; the terminal is welded to the front and rear sides of the rear wiring panel by arc welding, the front side is connected to the bottom of the Pogo Pin mother seat by connecting the transmission line, and the rear side is inserted into the strain wiring panel of the dynamic strain monitoring module and the vibration wiring panel jack of the vibration monitoring module; the positioning columns are located on both sides of the circular socket and are used in conjunction with the positioning grooves in the dynamic strain monitoring module.
8. According to the device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering in claim 1, the data storage module is characterized in that it includes a shell, a power switch, a USB3.0 interface, a charging port, a Pogo Pin body, a PCB circuit board, a data acquisition unit, a data storage unit, a power supply unit and a strong magnet.
9. According to a device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering described in claim 1, the shell in the data storage module includes a front panel and a rear shell, the front panel includes a power switch, a USB3.0 interface and a charging port, and the rear shell includes a Pogo Pin needle body; the USB3.0 interface is used for extracting stored data; the maximum charging wattage of the charging port is 67W; the Pogo Pin needle body includes a needle head and a pin, which is embedded in the rear cover plate of the shell by punching, the needle head part faces the outside of the shell, and the pin part is connected to the data acquisition unit; the PCB circuit board realizes the signal transmission and circuit connection of the data storage module; the data acquisition unit adopts a high-density channel PCI Express data acquisition card; the data storage unit adopts NVME2.0 protocol, PCIE4.0 interface high-speed solid-state hard disk; the power supply unit adopts 18650 lithium-ion battery; the strong magnet is located inside the rear cover plate and surrounds the rear cover plate for positioning and adsorbing with the square cover body in the Pogo Pin connection module, so that the needle head part of the Pogo Pin needle body is in close contact with the concave Pogo Pin female seat on the square cover body to form a data transmission path.
10. The device for monitoring internal vibration and dynamic strain of rock mass in blasting engineering according to claim 1, characterized in that: The method of use includes the following steps: 1) according to the number of points to be monitored inside the monitoring hole, determine the number of single cylinders of the dynamic strain monitoring module and the vibration monitoring module, and assemble the dynamic strain monitoring module and the vibration monitoring module respectively; 2) align the assembled vibration monitoring module with the square mortise and tenon socket, insert the dynamic strain monitoring module along the mortise and tenon groove, and then push the whole into the monitoring hole, then inject grout along the hole wall, so that the grout wraps the tube wall of the dynamic strain monitoring module, and wait for the grout to solidify; 3) after the grouting solidifies, insert the circular socket of the Pogo Pin connection module into the circular cylinder of the dynamic strain monitoring module along the positioning groove of the dynamic strain monitoring module, at this time, the terminal of the Pogo Pin connection module has also been inserted into the strain wiring panel of the dynamic strain monitoring module and the vibration wiring panel of the vibration monitoring module by using the positioning groove, so as to form a transmission connection; 4) adsorb the data storage module on the square cover of the Pogo Pin connection module, at this time, the needle head of the Pogo Pin needle body is aligned with the concave Pogo on the square cover. The Pin mother socket is in close contact to form a transmission path; 5) Before blasting, turn on the power switch in the data storage module to start the monitoring device; 6) After the monitoring is completed, turn off the power switch in the data storage module, remove the data storage module, unplug the Pogo Pin connection module, and then use the hook hole of the vibration wiring panel in the vibration monitoring module to take out the vibration monitoring module; 7) Use the USB3.0 interface in the data storage module to export the stored data for subsequent analysis.