Monitoring platform and monitoring method thereof

Abstract

The invention provides a monitoring platform and a monitoring method thereof, and the monitoring platform is used for monitoring the power process of a large-scale mountain disaster water tank experiment device, and comprises a plurality of monitoring mechanisms which are sequentially arranged from the upstream to the downstream of the large-scale mountain disaster water tank experiment device, each monitoring mechanism comprises a top observation tower, a side observation well corresponding to the top observation tower and data acquisition equipment; the bottom monitoring modules are distributed in a multi-row array mode from the upstream to the downstream of the bottom of the large-scale mountain disaster water tank experimental device, and at least one bottom monitoring module is arranged in each monitoring mechanism. The method can overcome adverse conditions of a large-scale mountain disaster dynamics simulation experiment on dynamic process monitoring, accurately reflects the spatio-temporal evolution process of various dynamics parameters in the movement process of a disaster body, is clear in principle, clear in construction and high in construction operability, can be suitable for the large-scale mountain disaster dynamics simulation experiment, and has a wide application prospect. And a foundation is laid for kinetic research of complex media.

Description

Technical Field

[0001] The invention relates to the technical field of physical experiment dynamic process monitoring, and in particular to a monitoring platform and a monitoring method thereof. Background Art

[0002] Mountain disasters such as landslides, mountain torrents, and mud-rock flows are extremely risky and harmful. One of the most conventional and common research methods for the prevention and control of mountain disasters is the water tank physical model experiment. One of the keys to understanding the movement laws of mountain disasters through physical model experiments lies in the dynamic monitoring of the dynamic process and accurate data collection. Existing physical experimental technology has been widely used in small and medium-scale physical model experiments. When the scale of the experimental device is small, it can meet the needs of easy installation of monitoring equipment in various locations; however, the dynamic process monitoring platform that can be deployed and operated in large-scale experimental water tank devices is still scarce. Summary of the invention

[0003] The embodiments of the present invention provide a monitoring platform and a monitoring method thereof, which can solve the problem that there is currently no dynamic process monitoring platform for the deployment and operation of large-scale experimental flume devices.

[0004] In a first aspect, an embodiment of the present invention provides a monitoring platform for monitoring the dynamic process of a large-scale mountain disaster flume experimental device, including:

[0005] A plurality of monitoring mechanisms are arranged in sequence from upstream to downstream of the large-scale mountain disaster flume experimental device, each of the monitoring mechanisms comprising a top observation tower, a side observation well corresponding to the top observation tower, and a data acquisition device;

[0006] The bottom monitoring modules are distributed in multiple rows along the bottom of the large-scale mountain disaster flume experimental device from upstream to downstream, and each monitoring mechanism is provided with at least one bottom monitoring module.

[0007] In one embodiment, the plurality of monitoring mechanisms include an upstream monitoring mechanism, a midstream monitoring mechanism, and a downstream monitoring mechanism.

[0008] In one embodiment, the top observation tower comprises

[0009] The columns are located on both sides of the large-scale mountain hazard flume experimental device;

[0010] A climbing frame is located outside the column on one side, and a cage-shaped guardrail is arranged outside the climbing frame (to ensure the safety of workers climbing);

[0011] The operating platform is located on the upper part of the column, and guardrails a are provided on both sides of the operating platform (it can be understood that the operating platform spans the sky above the large-scale mountain disaster flume experimental device, and guardrails a are installed on both sides to ensure safe operation of the staff).

[0012] Exemplarily, two columns are provided on both sides of the large-scale mountain disaster flume experimental device, and the two columns on each side are reinforced by multiple cross bars.

[0013] It can be understood that the upstream monitoring agencies, midstream monitoring agencies and downstream monitoring agencies are all equipped with top observation towers to monitor the dynamic time-space evolution of the top bird's-eye view and the front view of the disaster body.

[0014] In one embodiment, the operating platform is provided with a laser sensor, a first camera and an ultrasonic sensor; the guardrail a is provided with a micro monitoring radar, a second camera and a thermal infrared imager.

[0015] In one embodiment, the side observation well corresponds one-to-one with the top observation tower, and the side observation well is located on a side wall a of the large-scale mountain disaster water tank experimental device. A transparent tempered glass window is arranged on the side wall a. A third camera and a floodlight are arranged at the bottom of the side observation well. The lens of the third camera faces the transparent tempered glass window (to realize the shooting of the dynamic process of the disaster body from the side perspective). A broadband seismograph is also arranged at the bottom of the side observation well (it can be understood that after the third camera is set up, the broadband seismograph is fixed by concrete pouring in the remaining space at the bottom of the side observation well to realize the acquisition of environmental seismic signals), and a ladder is arranged on one side of the side observation well (for operators to enter and exit).

[0016] It will be appreciated that the third camera, floodlight and broadband seismograph are powered by sockets located at the bottom of the side observation well.

[0017] It can be understood that the side observation well is a vertical well outside the side wall of the large-scale mountain disaster flume experimental device, which is integrated with the concrete structure of the large-scale mountain disaster flume experimental device and shares a side with the large-scale mountain disaster flume experimental device.

[0018] Exemplarily, there are two transparent tempered glass windows, both located on a side wall shared by the side observation well and the large-scale mountain disaster water tank experimental device.

[0019] It can be understood that side observation wells are set up in the upstream monitoring agencies, midstream monitoring agencies and downstream monitoring agencies to monitor the temporal and spatial evolution of the lateral visual dynamic process of the disaster body and the environmental seismic signals.

[0020] 7. In one embodiment, the data acquisition device includes a collection box, a central server and a collection system. The collection box is connected to the central server through an optical fiber cascade to collect signals, and the data collected by the collection box is stored, analyzed and displayed through the collection system.

[0021] It can be understood that the collection box is a portable and integrated setting, which integrates and packages the hardware devices required by the data collection end in a sturdy box-type casing, and the collection box can be carried to any location.

[0022] It can be understood that collection boxes are provided in the upstream monitoring agency, the midstream monitoring agency and the downstream monitoring agency. When in use, the collection box is first carried and placed on the outside of the side wall of the large-scale mountain disaster flume experimental device of the upstream monitoring agency, the midstream monitoring agency and the downstream monitoring agency, connected to the power input, the optical fiber network, and the sensor cable.

[0023] In one embodiment, each of the bottom monitoring modules comprises an outer shell box body, a surface cover is arranged on the top of the outer shell box body, one side of the outer shell box body is an opening, and a monitoring device assembly is arranged in the outer shell box body.

[0024] In one embodiment, the monitoring equipment assembly includes a pore pressure sensor, a normal stress sensor, and a broadband seismometer.

[0025] In one embodiment, an installation pit is reserved at the bottom of the large-scale mountain disaster water tank experimental device for installing a bottom monitoring module, the outer shell box is located inside the installation pit and below the bottom surface of the large-scale mountain disaster water tank experimental device, and the surface cover is flush with the bottom surface of the large-scale mountain disaster water tank experimental device.

[0026] Exemplarily, the outer shell box is a metal rectangular block with a hollow interior. The outer shell box is connected to the surface cover plate by bolts. The surface cover plate is a square metal plate. A square hole is opened in the center of the surface cover plate for setting the force (sensitive) element of the positive stress sensor; the surface cover plate is provided with a circular threaded hole in the middle of the outer side of the square hole for connecting the pore pressure sensor; the conversion element and the outer shell of the positive stress sensor are fixed by bolts, and the broadband seismograph is fixed by tape for easy removal.

[0027] Exemplarily, a square installation pit is reserved at the bottom of the large-scale mountain disaster water tank experimental device for installing the bottom monitoring module. The outer shell box is located inside the installation pit and below the bottom surface of the large-scale mountain disaster water tank experimental device, while the surface cover is flush with the bottom surface of the large-scale mountain disaster water tank experimental device; the surface cover is connected to the embedded parts cast in the concrete of the installation pit at the edge by 8 bolts, thereby fixing the entire bottom monitoring module to the bottom of the large-scale mountain disaster water tank experimental device

[0028] It can be understood that the bottom monitoring modules are distributed in multiple rows of arrays from upstream to downstream along the bottom of the large-scale mountain hazard water tank experimental device, with the aim of monitoring the dynamic time-space evolution process of the bottom of the large-scale mountain hazard water tank experimental device.

[0029] It can be understood that among the four sides of the metal cuboid, three sides are closed and the other side is open, which is convenient for installing and removing pore pressure sensors, normal stress sensors and broadband seismometers, laying cables and quickly draining water to avoid internal water accumulation.

[0030] In a second aspect, an embodiment of the present invention provides a monitoring method, including: using a top observation tower to collect fluid depth and record a first motion process;

[0031] The second movement process is recorded by using the side observation well to collect the first ground motion signal;

[0032] The bottom monitoring module is used to collect the normal stress, pore water pressure and second ground motion signal at the bottom of the large-scale mountain disaster flume experimental device;

[0033] Data acquisition equipment is used to collect and store real-time data.

[0034] Beneficial effects of the embodiments of the present invention:

[0035] In the present invention, multiple monitoring mechanisms are sequentially arranged from upstream to downstream of the large-scale mountain disaster flume experimental device, and each monitoring mechanism is coupled with multidisciplinary parameter monitoring equipment such as sound, light, force, heat, electromagnetic, and earthquake, so as to realize the comprehensive acquisition of multi-source information of mountain disaster dynamics experimental data; each monitoring mechanism installs various data monitoring equipment on three structures of bottom monitoring module, top observation tower and side observation well, so as to realize multi-perspective dynamic process monitoring from bottom, top, front and side; multiple monitoring mechanisms are arranged in a large-scale experimental site, so as to realize multi-section coordinated monitoring of the dynamic process of the disaster body. The present invention can overcome the unfavorable conditions of large-scale mountain disaster dynamics simulation experiment for dynamic process monitoring, accurately reflect the spatiotemporal evolution process of various dynamic parameters in the movement process of the disaster body, and has clear principles, clear construction, and strong construction operability. It can be applied to large-scale mountain disaster dynamics simulation experiment, and lay a foundation for the dynamics research of complex media. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 It is the overall layout diagram of the dynamic process monitoring platform of the large-scale mountain disaster flume experimental device of the present invention;

[0038] Figure 2 It is a right view of the top observation tower frame of the large-scale mountain disaster flume experimental device of the present invention from upstream to downstream;

[0039] Figure 3 is a side view of the top observation tower of the present invention;

[0040] Figure 4 is a top view of the side observation well of the present invention;

[0041] Figure 5 It is a right view of the side observation well along the upstream to downstream direction of the large-scale mountain disaster flume experimental device of the present invention;

[0042] Figure 6 is a side view of the side observation well of the present invention;

[0043] Figure 7 It is a schematic diagram of the power process monitoring mechanism (monitoring section) of the present invention;

[0044] Figure 8 is a top view of the bottom monitoring module of the present invention;

[0045] Fig. 9 is a side view of the outer shell box of the present invention;

[0046] Fig.10 is another side view of the outer shell box body of the present invention;

[0047] Fig.11 It is an internal sectional view of the outer shell box body of the present invention. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the drawings; while "inside" and "outside" refer to the outline of the device.

[0049] See also Figure 1In a first aspect, an embodiment of the present application provides a monitoring platform for monitoring the dynamic process of a large-scale mountain disaster flume experimental device, including:

[0050] A plurality of monitoring mechanisms are arranged in sequence from upstream to downstream of the large-scale mountain disaster flume experimental device, each of the monitoring mechanisms comprising a top observation tower, a side observation well corresponding to the top observation tower, and a data acquisition device;

[0051] The bottom monitoring modules are arranged in multiple rows along the bottom of the large-scale mountain disaster flume experimental device from upstream to downstream, and each monitoring mechanism is provided with at least one bottom monitoring module.

[0052] In this application, multiple monitoring mechanisms are arranged in sequence from upstream to downstream of the large-scale mountain disaster flume experimental device, and each monitoring mechanism is coupled with multidisciplinary parameter monitoring equipment such as sound, light, force, heat, electromagnetic, and earthquake, so as to realize the comprehensive acquisition of multi-source information of mountain disaster dynamics experimental data; each monitoring mechanism installs various data monitoring equipment on three structures of bottom monitoring module, top observation tower and side observation well, so as to realize multi-perspective dynamic process monitoring from bottom, top, front and side; multiple monitoring mechanisms are arranged in a large-scale experimental site, so as to realize multi-section coordinated monitoring of the dynamic process of the disaster body. The present invention can overcome the unfavorable conditions of large-scale mountain disaster dynamics simulation experiment for dynamic process monitoring, accurately reflect the spatiotemporal evolution process of various dynamic parameters in the movement process of the disaster body, and has clear principles, clear construction, and strong construction operability. It can be applied to large-scale mountain disaster dynamics simulation experiment, and lay the foundation for the dynamics research of complex media.

[0053] Before the experiment of this application, the data acquisition system needs to be tested to check whether the sensor signal transmission is normal. After confirming that the sensor signal is normal, the installed sensor needs to be tested in situ. Operators need to be divided into two groups. One group goes to various monitoring agencies (monitoring sections) to load the normal stress sensor and pore pressure sensor on the bottom monitoring module of the large-scale mountain disaster flume experimental device, and shield the laser sensor and ultrasonic sensor on the top observation tower at a certain distance; the other group operates the data acquisition system, turns on data acquisition, and observes whether the signal fluctuation matches the actual measurement of loading and shielding. Before the experiment begins, the bottom monitoring module needs to be cleaned, especially the threaded hole for connecting the pore pressure sensor. It should be rinsed before water injection and internal dust and fine particles should be removed as much as possible.

[0054] After the preparation work is completed, the formal experiment can begin. The operator only needs to operate the data acquisition system and send a start acquisition signal to the data acquisition box. The data monitoring equipment located upstream, midstream and downstream will then start real-time data acquisition according to the experimental template configuration. The collected data is sent to the central server through the optical fiber link, and the program on the server receives, displays and stores the data. The operator can observe the data acquisition waveforms of each sensor in the data acquisition system. After the experiment is over, the operator stops collecting data, and the experimental results are automatically stored in the server; the operator can export, view and download the experimental data files from the server.

[0055] In some embodiments, the plurality of monitoring mechanisms include an upstream monitoring mechanism, a midstream monitoring mechanism, and a downstream monitoring mechanism.

[0056] It can be understood that in order to monitor the spatial propagation of the dynamic parameters of the disaster body, three monitoring agencies are arranged along the upstream, midstream and downstream of the large-scale mountain disaster flume experimental device, and synchronous data collection is achieved in each section.

[0057] See also Figure 1 , for example, the length of the large-scale mountain disaster flume experimental device is 140 meters. Three monitoring mechanisms, namely the upstream monitoring mechanism, the midstream monitoring mechanism and the downstream monitoring mechanism, are arranged in sequence from upstream to downstream of the large-scale mountain disaster flume experimental device, and are located at 16 meters, 60 meters and 110 meters from the outlet of the material box, respectively. 8 rows of bottom monitoring module installation pits are reserved along the bottom of the large-scale mountain disaster flume experimental device. Each row is arranged with 3 installation pits on the center line and both sides of the large-scale mountain disaster flume experimental device. A total of 8×3=24 installation pits are arranged along the bottom of the large-scale mountain disaster flume experimental device, and embedded parts are poured in the installation pits with concrete.

[0058] See also Figure 2 and Figure 3 In some embodiments, the top observation tower includes

[0059] The columns are located on both sides of the large-scale mountain hazard flume experimental device;

[0060] A climbing frame is located outside the column on one side, and a cage-shaped guardrail is arranged outside the climbing frame to ensure the safety of workers climbing;

[0061] The operating platform is located on the upper part of the column, and guardrails a are arranged on both sides of the operating platform. It can be understood that the operating platform spans over the large-scale mountain disaster flume experimental device, and guardrails a are installed on both sides to ensure safe operation of the staff.

[0062] Exemplarily, two columns are provided on both sides of the large-scale mountain disaster flume experimental device, and the two columns on each side are reinforced by multiple cross bars.

[0063] It can be understood that the upstream monitoring agencies, midstream monitoring agencies and downstream monitoring agencies are all equipped with top observation towers to monitor the dynamic time-space evolution of the top bird's-eye view and the front view of the disaster body.

[0064] Furthermore, the operating platform is provided with a laser sensor, a first camera and an ultrasonic sensor; the guardrail a is provided with a micro monitoring radar, a second camera and a thermal infrared imager.

[0065] Exemplarily, the ultrasonic sensor, the laser sensor and the first camera for shooting a bird's-eye view of the disaster body are fixed with brackets at the crossbar of the operating platform, and the measuring probe or lens is vertically aligned with the bottom of the large-scale mountain disaster water tank experimental device; the thermal infrared imager, the micro-monitoring radar and the second camera for shooting a frontal view are each fixed with brackets at the guardrail a, so that the measuring probe or lens is facing the upstream direction of the large-scale mountain disaster water tank experimental device; the cables of each monitoring device are pulled from the PVC pipe to the outside of the side wall of the large-scale mountain disaster water tank experimental device, and the sensor cables are left in the collection box position.

[0066] See also Figures 4 to 7 Furthermore, the side observation well corresponds to the top observation tower one by one, the side observation well is located on the side wall a of the large-scale mountain disaster water tank experimental device, and the side wall a is provided with a transparent tempered glass window. A third camera and a floodlight are provided at the bottom of the side observation well, and the lens of the third camera is facing the transparent tempered glass window to realize the shooting of the dynamic process of the disaster body from the side perspective. A broadband seismograph is also provided at the bottom of the side observation well, and a ladder is provided on one side of the side observation well for operators to enter and exit.

[0067] It can be understood that the third camera is placed at the bottom of the side observation well through a tripod bracket, and the lens is facing the tempered glass. After the third camera is set up, the broadband seismograph is fixed in the remaining space at the bottom of the side observation well by pouring concrete to obtain environmental seismic signals.

[0068] It will be appreciated that the third camera, floodlight and broadband seismograph are powered by sockets located at the bottom of the side observation well.

[0069] It can be understood that the side observation well is a vertical well outside the side wall of the large-scale mountain disaster flume experimental device, which is integrated with the concrete structure of the large-scale mountain disaster flume experimental device and shares a side with the large-scale mountain disaster flume experimental device.

[0070] Exemplarily, there are two transparent tempered glass windows, both located on a side wall shared by the side observation well and the large-scale mountain disaster water tank experimental device.

[0071] It can be understood that side observation wells are set up in the upstream monitoring agencies, midstream monitoring agencies and downstream monitoring agencies to monitor the temporal and spatial evolution of the lateral visual dynamic process of the disaster body and the environmental seismic signals.

[0072] In some embodiments, the data acquisition device includes a collection box, a central server and a collection system. The collection box is connected to the central server via an optical fiber cascade to collect signals, and the data collected by the collection box is stored, analyzed and displayed through the collection system.

[0073] It can be understood that the collection box is a portable and integrated setting, which integrates and packages the hardware devices required by the data collection end in a sturdy box-type casing, and the collection box can be carried to any location.

[0074] It can be understood that collection boxes are provided in the upstream monitoring agency, the midstream monitoring agency and the downstream monitoring agency. When in use, the collection box is first carried and placed on the outside of the side wall of the large-scale mountain disaster flume experimental device of the upstream monitoring agency, the midstream monitoring agency and the downstream monitoring agency, connected to the power input, the optical fiber network, and the sensor cable.

[0075] See also Figures 8 to 11 In some embodiments, an installation pit for installing a bottom monitoring module is reserved at the bottom of the large-scale mountain disaster water tank experimental device, the outer shell box is located inside the installation pit and below the bottom surface of the large-scale mountain disaster water tank experimental device, and the surface cover is flush with the bottom surface of the large-scale mountain disaster water tank experimental device.

[0076] Exemplarily, the outer shell box is a metal rectangular block with a hollow interior. The outer shell box is connected to the surface cover plate by bolts. The surface cover plate is a square metal plate. A square hole is opened in the center of the surface cover plate for setting the force (sensitive) element of the positive stress sensor; the surface cover plate is provided with a circular threaded hole in the middle of the outer side of the square hole for connecting the pore pressure sensor. The pore pressure sensor is screwed into the circular threaded hole of the surface cover plate from the inside of the outer shell box, and a metal filter is pasted on the outer surface of the threaded hole; the conversion element and the outer shell of the positive stress sensor are fixed by bolts, and the broadband seismograph is fixed by tape for easy removal.

[0077] Exemplarily, a square installation pit is reserved at the bottom of the large-scale mountain disaster water tank experimental device for installing a bottom monitoring module. The outer shell box is located inside the installation pit and below the bottom surface of the large-scale mountain disaster water tank experimental device, while the surface cover is flush with the bottom surface of the large-scale mountain disaster water tank experimental device; the surface cover is connected to the embedded parts cast in the concrete of the installation pit at the edge by 8 bolts, thereby fixing the entire bottom monitoring module to the bottom of the large-scale mountain disaster water tank experimental device.

[0078] It can be understood that the bottom monitoring modules are distributed in multiple rows of arrays from upstream to downstream along the bottom of the large-scale mountain hazard water tank experimental device, with the aim of monitoring the dynamic time-space evolution process of the bottom of the large-scale mountain hazard water tank experimental device.

[0079] It can be understood that among the four sides of the metal cuboid, three sides are closed and the other side is open, which is convenient for installing and removing pore pressure sensors, normal stress sensors and broadband seismometers, laying cables and quickly draining water to avoid internal water accumulation.

[0080] It can be understood that one side of the outer shell box is left empty and no panels are installed. After the bottom monitoring module is configured, it is first moved to the installation pit at the bottom of the large-scale mountain disaster water tank experimental device, and all sensor cables are uniformly led out from the empty side of the outer shell box, and then inserted into the pre-buried pipes at the bottom of the large-scale mountain disaster water tank experimental device. Subsequently, the bottom monitoring module is placed in the installation pit, and 8 bolts are passed through the 8 bolt holes of the surface cover plate and screwed into the threaded holes of the embedded parts to fix the bottom monitoring module to the bottom of the large-scale mountain disaster water tank experimental device. The sensor cables need to pass through the pre-buried pipes and be pulled to the collection box placement position on the outside of the side wall of the large-scale mountain disaster water tank experimental device.

[0081] It can be understood that there are steps on both sides of the large-scale mountain disaster water tank experimental device of the present application, and handrails are also provided on the outside of the steps.

[0082] In a first aspect, an embodiment of the present application provides a monitoring method, comprising:

[0083] S01, using the top observation tower to collect the fluid depth and record the first movement process;

[0084] S02, using the side observation well to record the second movement process and collect the first seismic signal;

[0085] S03, using the bottom monitoring module to collect the normal stress, pore water pressure and second ground motion signal at the bottom of the large-scale mountain disaster flume experimental device;

[0086] S04. Use data acquisition equipment to collect and store real-time data.

[0087] It can be understood that through the experimental videos of the first camera, the second camera and the third camera, the macroscopic phenomena of the whole process of the disaster body starting-movement-accumulation can be intuitively observed from a global perspective, the movement process of the top and sides of the disaster body can be recorded from a local perspective, and microscopic kinematic information such as flow velocity and velocity profile can be read therefrom.

[0088] It can be understood that the macroscopic stress state of the disaster body and the microscopic solid particle stress state are obtained through the normal stress sensor and pore water pressure sensor set in the bottom monitoring module, and the density of the disaster body is estimated in combination with the flow depth data.

[0089] It can be understood that by installing the laser sensor and ultrasonic sensor on the top observation tower, the height / depth changes of the disaster body are monitored, and the steady-state stress of the fluid is calculated and compared with the actual stress state.

[0090] It can be understood that flow velocity, flow depth and stress state, as basic dynamic surface characteristics of fluid, are important indicators for simulating the real movement process of mountain hazards and measuring whether the experimental physical model is consistent with the theoretical model. They are also important indicators for further calculating flow parameters and revealing the microscopic dynamic characteristics and movement mechanism of fluid.

[0091] It can be understood that by setting up broadband seismometers in the bottom monitoring module and the side observation wells, the environmental vibration information caused by the movement of the disaster body can be obtained, the intensity of particle collision movement can be calculated, and compared with information such as normal stress and flow depth, the technical method of using vibration signals to quantify fluid dynamic characteristics can be verified.

[0092] The present invention combines multiple perspectives, such as top, bottom and side, to obtain all-round dynamic information; spatially, multiple monitoring mechanisms (monitoring sections) are arranged along the length direction of the large-scale mountain disaster flume experimental device (i.e., the direction of fluid movement) to obtain the spatial evolution law of each monitoring indicator during the movement of the disaster body (i.e., when the fluid passes through each monitoring section from upstream to downstream in sequence, the monitoring indicators of different sections are compared); temporally, the entire experiment is connected to obtain the temporal evolution law of each monitoring indicator during the entire movement of the disaster body (i.e., when the fluid passes through a monitoring section from beginning to end, the changes in the monitoring indicators continuously collected on the section).

[0093] The present application is aimed at simulating experiments on high-speed moving disaster bodies, and can perform high-speed data acquisition up to 100fps; sensor data is centrally transmitted to the processor and stored locally, and monitoring camera video data is centrally transmitted to the matching recorder and stored locally. The processor and recorder are both located in the control room, which is convenient for operators to uniformly display, export and download all monitoring data; during the experiment, the monitoring signal waves of all sensors and the camera monitoring screen can be displayed in real time in the control room, and each sensor data is recorded in a time series and saved separately as an Excel spreadsheet file for export, and each camera monitoring video is also saved separately as a video file for export (sensor data filtering, noise reduction, and calculation of other physical parameters through monitoring indicators, etc., belong to the basic processing and analysis methods and general processes of experimental data, which are not repeated here), and the monitoring video data reads the fluid velocity information through image processing technology.

[0094] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A monitoring platform, characterized in that: The dynamic process of the large-scale mountain hazard flume experimental device is used to monitor: A plurality of monitoring mechanisms are arranged in sequence from upstream to downstream of the large-scale mountain disaster flume experimental device, each of the monitoring mechanisms comprising a top observation tower, a side observation well corresponding to the top observation tower, and a data acquisition device; The bottom monitoring modules are distributed in multiple rows along the bottom of the large-scale mountain disaster flume experimental device from upstream to downstream, and each monitoring mechanism is provided with at least one bottom monitoring module.

2. The monitoring platform according to claim 1, characterized in that: The multiple monitoring agencies include an upstream monitoring agency, a midstream monitoring agency and a downstream monitoring agency.

3. The monitoring platform according to claim 1, characterized in that: The top observation tower includes columns located on both sides of the large-scale mountain disaster flume experimental device; A climbing frame is located outside the column on one side, and a cage-shaped guardrail is arranged outside the climbing frame; An operating platform is located on the upper part of the column, and guardrails a are arranged on both sides of the operating platform.

4. The monitoring platform according to claim 3, characterized in that: The operating platform is provided with a laser sensor, a first camera and an ultrasonic sensor; the guardrail a is provided with a micro monitoring radar, a second camera and a thermal infrared imager.

5. The monitoring platform according to claim 4, characterized in that: The side observation well corresponds one-to-one with the top observation tower. The side observation well is located on the side wall a of the large-scale mountain disaster water tank experimental device. A transparent tempered glass window is arranged on the side wall a. A third camera and a floodlight are arranged at the bottom of the side observation well. The lens of the third camera faces the transparent tempered glass window. A broadband seismograph is also arranged at the bottom of the side observation well. A ladder is arranged on one side of the side observation well.

6. The monitoring platform according to claim 1, characterized in that: The data acquisition equipment includes a collection box, a central server and a collection system. The collection box is connected to the central server through an optical fiber cascade to collect signals, and the data collected by the collection box is stored, analyzed and displayed through the collection system.

7. The monitoring platform according to claim 1, characterized in that: Each of the bottom monitoring modules comprises an outer shell box body, a surface cover plate is arranged on the top of the outer shell box body, one side of the outer shell box body is an opening, and a monitoring device assembly is arranged in the outer shell box body.

8. The monitoring platform according to claim 7, characterized in that: The monitoring equipment assembly includes a pore pressure sensor, a normal stress sensor and a broadband seismometer.

9. The monitoring platform according to claim 7, characterized in that: An installation pit for installing a bottom monitoring module is reserved at the bottom of the large-scale mountain disaster water tank experimental device. The outer shell box is located inside the installation pit and below the bottom surface of the large-scale mountain disaster water tank experimental device. The surface cover is flush with the bottom surface of the large-scale mountain disaster water tank experimental device.

10. A monitoring method, characterized in that: include: The top observation tower was used to collect the fluid depth and to record the first motion process; The second movement process is recorded by using the side observation well to collect the first ground motion signal; The bottom monitoring module is used to collect the normal stress, pore water pressure and second ground motion signal at the bottom of the large-scale mountain disaster flume experimental device; Data acquisition equipment is used to collect and store real-time data.

Images