Micro-seismic sensor guided wave rod mounting device
By combining the waveguide rod installation device with the reinforcement pier, the problems of poor stability and signal quality in traditional waveguide rod installation are solved, achieving high stability and low cost in microseismic monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional waveguide installation methods suffer from insufficient coupling stability, limited reinforcement methods, poor signal quality, and poor adaptability, resulting in insufficient accuracy and reliability of microseismic monitoring data.
The waveguide rod adopts a combined structure of installation device and reinforcement pier. Through bolt connection, multiple sets of flat-head screws for fixing and cement concrete reinforcement pier design, the connection stability between the waveguide rod and the rock mass is enhanced, and a rigid connection is formed with the rock mass, thus optimizing signal transmission.
It improves the connection stability between the waveguide rod and the rock mass, reduces signal attenuation and distortion, enhances the data quality and adaptability of microseismic monitoring, and reduces costs.
Smart Images
Figure CN224081824U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of microseismic monitoring technology, and in particular to a microseismic sensor waveguide rod mounting device. Background Technology
[0002] In the field of microseismic monitoring in rock engineering, the waveguide serves as the signal transmission medium between the sensor and the rock mass, and its installation quality directly affects the accuracy of the monitoring data. Traditional waveguide installation methods have significant drawbacks:
[0003] Insufficient coupling stability: Conventional waveguide installation devices often use simple snap-fit or single bolt connections with the waveguide, resulting in low coupling tightness. They are prone to loosening due to long-term rock vibration, leading to signal attenuation or distortion.
[0004] The reinforcement method is limited: the waveguide rod is fixed to the rock mass only by the anchoring agent, lacking mechanical reinforcement measures. Under dynamic loads (such as blasting and mechanical vibration), it is prone to debonding and has a high probability of coupling failure.
[0005] Poor signal quality: Traditional installation methods result in significant signal amplification (waveform distortion rate >15%) and excessively long tail waves (tail wave ratio ≥30%) due to loose waveguide rods or interface impedance mismatch, which seriously affects the accuracy of energy calculation and event location.
[0006] Poor adaptability: Custom-made waveguide rods are required, which are costly and incompatible with common anchor rods used in engineering sites, thus limiting the promotion and application of the technology.
[0007] Therefore, there is an urgent need for a waveguide rod installation scheme that is highly stable, low-cost, and adaptable to improve the reliability and data quality of microseismic monitoring systems. Utility Model Content
[0008] To address the aforementioned issues, this application provides a waveguide rod mounting device for a microseismic sensor, which improves the accuracy of subsequent microseismic data analysis and thus achieves better monitoring results. The technical solution is as follows:
[0009] This application provides a waveguide rod mounting device for a microseismic sensor, including a waveguide rod mounting device, a waveguide rod, and a waveguide rod reinforcement block. The waveguide rod mounting device has a connecting component at its top for detachable connection to the bottom of the microseismic sensor. The waveguide rod is fixedly connected to the waveguide rod mounting device by fasteners. The waveguide rod reinforcement block is cast from a hardened material and embedded inside the rock mass. The waveguide rod passes through the reinforcement block and couples with the rock mass. The reinforcement block is partially embedded in the rock mass to enhance the connection stability between the waveguide rod and the rock mass.
[0010] For example, in one embodiment of the micro-vibration sensor waveguide rod mounting device, the connecting component is a bolt, and the bottom of the micro-vibration sensor is provided with a corresponding threaded hole. The bolt and the threaded hole adopt a reverse thread anti-loosening design.
[0011] For example, in one embodiment of the micro-vibration sensor waveguide rod mounting device, the fasteners are multiple sets of flathead screws symmetrically distributed around the waveguide rod.
[0012] For example, in one embodiment of the microseismic sensor waveguide mounting device, the waveguide reinforcement pier is a cuboid structure, and the waveguide vertically penetrates its geometric center.
[0013] For example, in one embodiment of the microseismic sensor waveguide rod installation device, the hardening material is cement concrete with a compressive strength ≥25MPa and a mix proportion that matches the mechanical properties of the rock mass.
[0014] For example, in one embodiment of the microseismic sensor waveguide mounting device, the diameter of the waveguide is matched with the interface of the waveguide mounting device.
[0015] For example, in one embodiment of the microseismic sensor waveguide rod installation device, the lower end of the waveguide rod is coupled to the rock mass through an anchoring agent, and the thickness of the anchoring agent is 5-15mm.
[0016] For example, in one embodiment of the microseismic sensor waveguide rod installation device, the pouring depth of the waveguide rod reinforcement pier is 10-30 cm below the rock surface.
[0017] The beneficial effects of the micro-vibration sensor waveguide mounting device provided in some embodiments of this application are as follows:
[0018] (1) Rigid connection and double reinforcement: The waveguide rod installation device is rigidly connected to the micro-vibration sensor through the top bolt. The waveguide rod is symmetrically locked by 8 sets of flat-head screws, which improves the anti-loosening ability under vibration environment and optimizes the signal transmission stability. The semi-buried reinforcement pier is made of cement concrete that matches the mechanical properties of the rock mass. Half of the reinforcement pier is pre-embedded in the rock mass, and the waveguide rod penetrates vertically through its center. The interface stress is evenly distributed, and the probability of coupling failure is reduced.
[0019] (2) Significantly improved signal quality: the tail wave is shortened, signal reflection and scattering are reduced by rigid connection, the proportion of the tail wave is reduced, and the energy calculation error is reduced.
[0020] (3) Breakthrough in cost and adaptability, universal anchor rod modification: the waveguide rod can be directly adopted from the anchor rod on the engineering site, without the need for customization, thus reducing costs.
[0021] (4) Enhanced long-term stability: Material compressive strength of reinforced pier concrete ≥30MPa, matching the elastic modulus of rock mass, reducing interface stress differences; Mechanical interlocking optimization: The embedded surface of the reinforced pier is designed with concave and convex textures, combined with cement bonding, which increases tensile strength by 35% and extends service life.
[0022] (5) Improved anti-interference capability: Anti-loosening design with reverse thread: The bottom threaded hole of the micro-vibration sensor adopts reverse thread to prevent high-frequency vibration from causing loosening and improve installation reliability.
[0023] This invention solves the core pain points of traditional waveguide rod installation through structural innovation and material optimization, providing a high-precision, low-cost microseismic monitoring solution for rock engineering such as mines and tunnels, and has significant engineering application value. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the overall structure of the micro-vibration sensor waveguide mounting device of this application;
[0026] Figure 2 This is a cross-sectional view of the waveguide mounting device structure of this application;
[0027] Figure 3 This is a front view of the waveguide mounting device structure of this application;
[0028] Figure 4 A schematic diagram of the waveforms received by the sensor installed for borehole grouting;
[0029] Figure 5 A schematic diagram of the waveform received by a sensor mounted on a conventional waveguide.
[0030] Figure 6 This is a schematic diagram of the waveform received by the sensor installed using the method described in this application. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.
[0033] This application provides a micro-vibration sensor waveguide rod mounting device, such as... Figure 1-3 As shown, the device includes a waveguide rod mounting device 2, a waveguide rod 3, and a waveguide rod reinforcing pier 4. The waveguide rod mounting device 2 has a connecting component at its top for detachable connection to the bottom of the microseismic sensor 1. The waveguide rod 3 is fixedly connected to the waveguide rod mounting device 2 by fasteners. The waveguide rod reinforcing pier 4 is made of hardened material and embedded in the rock mass. The waveguide rod 3 passes through the reinforcing pier and couples with the rock mass. The waveguide rod reinforcing pier 4 is partially pre-embedded in the rock mass to enhance the connection stability between the waveguide rod 3 and the rock mass.
[0034] The microseismic sensor is the signal receiving device of the microseismic monitoring system. Its main function is to sense vibration signals and convert them into electrical signals for transmission to the acquisition equipment. The microseismic sensor used in this application is cylindrical with a threaded hole at its bottom.
[0035] This application achieves stable installation of the waveguide rod through modular connection and reinforced pier structure, adapting to different engineering scenarios and improving signal transmission reliability.
[0036] For example, in one embodiment of the microseismic sensor waveguide mounting device, such as Figure 1-3 As shown, the connecting component is bolt 7, and the bottom of the micro-vibration sensor 1 has a corresponding threaded hole 5. Bolt 7 and threaded hole 5 adopt a reverse thread anti-loosening design. This prevents the sensor from loosening due to high-frequency vibration and improves installation reliability.
[0037] For example, in one embodiment of the microseismic sensor waveguide mounting device, such as Figure 1-3 As shown, the fasteners consist of multiple sets of flat-head screws 8, symmetrically distributed around the waveguide rod 3, with several corresponding threaded grooves 6 on the circumference of the waveguide rod 3. The symmetrical fixing with multiple screws enhances the connection rigidity and improves resistance to vibration and loosening.
[0038] For example, in one embodiment of the microseismic sensor waveguide mounting device, such as Figure 1-2 As shown, the waveguide rod reinforcement pier 4 is a cuboid structure, and the waveguide rod 3 penetrates its geometric center vertically.
[0039] For example, in one embodiment of the microseismic sensor waveguide mounting device, the hardening material is cement concrete with a compressive strength ≥25MPa, and its mix proportion matches the mechanical properties of the rock mass. This reduces interfacial stress differences and lowers the probability of coupling failure.
[0040] For example, in one embodiment of the microseismic sensor waveguide mounting device, the diameter of the waveguide 3 matches the interface of the waveguide mounting device 2. This eliminates the need for custom-made waveguides, reducing costs and providing strong adaptability.
[0041] For example, in one embodiment of the microseismic sensor waveguide mounting device, the waveguide reinforcement pier 4 is bonded to the rock mass with cement. This enhances the mechanical interlocking force and improves tensile strength.
[0042] Specifically, the reinforcement pier is half-buried in the rock mass. That is, before pouring, a rectangular pit the size of half a reinforcement pier needs to be dug in the rock mass. Then, the waveguide rod is vertically installed in the center of the rectangular pit before the waveguide rod reinforcement pier is poured. After pouring, the reinforcement pier and the rock mass become one.
[0043] For example, in one embodiment of the microseismic sensor waveguide rod installation device, the lower end of the waveguide rod 3 is coupled to the rock mass via an anchoring agent, the thickness of which is 5-15 mm. This optimizes the interface stress distribution and improves long-term stability.
[0044] For example, in one embodiment of the microseismic sensor waveguide installation device, the pouring depth of the waveguide reinforcement pier 4 is 10-30 cm below the rock surface. This prevents external loads from directly impacting the reinforcement pier and improves its durability.
[0045] Figure 4 This is a schematic diagram of the waveform received by the sensor installed for the borehole grouting method. This waveform signal is a standard reference waveform. Figure 5 A schematic diagram of the waveforms received by a sensor installed in a conventional waveguide mounting system. Figure 4 and Figure 5 The comparison shows that when using a waveguide rod for mounting, the waveform acquired by the sensor exhibits an amplification effect, resulting in poorer waveform signal quality and a longer tailwave. Through... Figure 6 and Figure 5The comparison shows that when the micro-vibration sensor waveguide rod mounting device of this application is used, the waveform amplification effect acquired by the sensor is relatively smaller, the waveform signal quality is relatively better, the wake wave is relatively shorter, and the energy calculation is more accurate. The mounting method of this application can effectively improve the problems of waveform amplification, signal quality degradation, and excessively long wake waves caused by waveguide rod mounting devices.
[0046] The microseismic sensor waveguide installation device of this application does not require a specially made waveguide and can use existing anchor rods or other materials on the engineering site as waveguides for installation. Compared with conventional waveguide installation devices, it has stronger adaptability. The waveguide installation device of this application can effectively reduce the loosening of the coupling between the exposed end of the waveguide and the rock mass caused by conventional installation methods. Moreover, compared with conventional installation methods, the received waveform signal has a smaller amplification effect, better waveform quality, and shorter wake.
[0047] Although the embodiments of this application have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this application. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this application is not limited to the specific details and the illustrations shown and described herein.
Claims
1. A microseismic sensor waveguide mounting device, characterized by, The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring. The utility model discloses a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring. The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring. The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring.
2. The microseismic sensor guided wave rod mounting apparatus of claim 1, wherein, The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring.
3. The microseismic sensor guided wave rod mounting apparatus of claim 1, wherein, The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring.
4. The microseismic sensor guided wave rod mounting apparatus of claim 1, wherein, The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring.
5. The microseismic sensor guided wave rod mounting apparatus of claim 1, wherein, The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring.
6. The microseismic sensor guided wave rod mounting apparatus of claim 1, wherein, The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring.
7. The microseismic sensor guided wave rod mounting apparatus of claim 1, wherein, The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring.
8. The microseismic sensor guided wave rod mounting apparatus of claim 1, wherein, The utility model relates to a microseismic sensor installation device and a microseismic sensor installation method, and relates to the technical field of microseismic monitoring.