Experiment box for three-dimensional mining seepage simulation experiment
By designing a three-dimensional mining-induced seepage simulation experimental chamber, and using a servo computer and a CCD camera combined with a fluorescent tracer, three-dimensional visualization monitoring of the mining-induced fracture field and seepage field was achieved. This solved the problem that existing technologies could not achieve three-dimensional seepage field visualization, and realized a realistic simulation of the changes in the groundwater seepage field.
Patent Information
- Application Number
- CN202423033013.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing technologies cannot achieve visualized monitoring of three-dimensional seepage fields, especially in the study of seepage characteristics in mining-induced overburden fissures, and cannot effectively reflect the changing process of groundwater seepage fields.
A three-dimensional mining-induced seepage simulation test chamber was designed, which includes a seepage simulation component and a mining component. A servo motor is used to simulate formation pressure, and a CCD camera and laser are used to record changes in the seepage field. Nile red fluorescent tracer is used to mark the seepage path to achieve visualization and monitoring of the three-dimensional model.
It enables three-dimensional visualization monitoring of mining-induced fracture fields and seepage fields, and can realistically simulate the changing process of groundwater seepage fields, solving the problem that existing technologies cannot achieve three-dimensional visualization of seepage fields.
Smart Images
Figure CN223565520U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydrogeological condition evolution simulation technical field, concretely is a three -dimensional mining seepage simulation experiment experimental box. BACKGROUND
[0002] Mining seepage refers to the phenomenon that the fissure and pore in rock mass deform and move under the action of water, which is particularly important in mining engineering, especially in deep mining. Water damage problem is increasingly serious and the mechanism is complex. Mining seepage has important influence on mine safety and resource development. With the shift of coal development main battlefield to deep and west, roof water damage is more and more serious, and the form of roof water damage is complex and diverse, which causes some mines to have difficulty in production and even stop production. The essential reason for the complex and diverse form of roof water outflow is closely related to the mining fissure seepage of overburden rock. The research on the characteristics of mining overburden fissure seepage is mainly through laboratory experiment and simulation.
[0003] At present, the indoor material simulation part of mining seepage is two-dimensional, which mainly uses camera or infrared image to monitor the overburden damage process under the condition of no water. A few researches bury the flow guide pipe in the model to simulate seepage, which cannot reflect the real water-conducting fissure and underground water seepage field change process. The main problem is that it is difficult to effectively realize the visualization monitoring of three-dimensional seepage field. Therefore, a test box capable of intelligently monitoring mining and crack closure process and analyzing mining crack field and seepage field is needed. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a three -dimensional mining seepage simulation experiment experimental box to solve the problem of unable to realize three -dimensional seepage field visualization monitoring.
[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a three -dimensional mining seepage simulation experiment experimental box, including support platform, still including:
[0006] The mounting bracket is arranged above the support platform, and the top end of the mounting bracket is fixedly connected with a servo motor;
[0007] The box body is arranged above the support platform, and the box body is internally provided with a seepage simulation assembly, the seepage simulation assembly comprises a coal pillar arranged at the bottom of the box body, a first seepage layer is arranged above the coal pillar, a second seepage layer is connected above the first seepage layer, a third seepage layer is connected above the second seepage layer, and a water storage pool is arranged in the third seepage layer;
[0008] The mining assembly arranged below the box body is used for simulating coal mining, the mining assembly comprises a plurality of distributed steel plates connected below the first seepage layer, a hinged seat is fixedly connected below the distributed steel plates, a cylindrical joint is rotationally connected in the hinged seat, a threaded rod is rotationally connected in the cylindrical joint, and a handle is fixedly connected to the bottom of the threaded rod.
[0009] Preferably, the servo machine output end is fixedly connected with a pressing plate, and the pressing plate is arranged directly above the water storage pool.
[0010] Preferably, a water supply warehouse is fixedly connected above the mounting bracket on one side of the servo machine, a dyeing agent is added to water in the water supply warehouse, the dyeing agent material is a Nile red fluorescent tracer, a water guide pipe is fixedly connected on one side below the water supply warehouse, the water guide pipe is a rubber telescopic hose, and the water guide pipe penetrates the mounting bracket and the pressing plate.
[0011] Preferably, the box body bottom material is a high-strength steel plate, the box wall material is a transparent organic panel, the coal column is replaced by an iron block, and the coal column is arranged at the bottom of the box body.
[0012] Preferably, the first seepage layer, the second seepage layer and the third seepage layer are made of ordinary glass sand as aggregate and epoxy resin, curing agent and saturated rosin alcohol solution as cementing agent, and the first seepage layer, the second seepage layer and the third seepage layer are prepared by adjusting the proportion of the cementing agent to prepare similar rock layers with different flexural properties.
[0013] Preferably, a water outlet pipe is arranged at the bottom of the box body, a recovered water warehouse is arranged below the water outlet pipe, and handles are arranged at both ends of the recovered water warehouse.
[0014] Preferably, the number of the distributed steel plates is ten, the top end of the distributed steel plate abuts against the bottom of the first seepage layer, the box body is provided with screw holes matched with the external threads of the threaded rod, the threaded rod is connected with the box body through threads, and the hinged seat, the cylindrical joint, the threaded rod and the handle are respectively and symmetrically arranged below the distributed steel plates.
[0015] Preferably, a computer is arranged on one side of the center of the support platform, a CCD camera is arranged on one side above the support platform, a laser is arranged on one side above the support platform and away from the CCD camera, and the output ends of the CCD camera and the laser are electrically connected with the input end of the computer through wires.
[0016] Compared with the prior art, the utility model has the advantages that:
[0017] The utility model discloses a seepage simulation component and mining component are set up, and mining component can adjust the support force simulation coal seam mining of distributed steel plate to first seepage layer through rotating threaded rod, and the deformation of overburden is increased, seepage simulation component can simulate the seepage of water in various levels of strata, and through CCD camera and laser recording the speckle image under laser irradiation before and after deformation and the dynamic laser surface formed by tracer (nile red fluorescence tracer is orange under laser excitation in indoor natural light condition, and is bright fluorescence reaction under the special filter of PIV system) mark of the seepage field to be measured, the data recorded by CCD camera and laser are handled through computer to obtain the mining fissure field and seepage field on the same slice, establish three -dimensional model, realize the non -embedded visual observation in model, can simulate experiment and monitor the change process of water -conducting fracture and underground water seepage field in the true sense, and effectively realize the visualization monitoring of three -dimensional seepage field. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The structure diagram of a preferred embodiment of the experimental box for three-dimensional mining seepage simulation experiment provided by the utility model is shown in the figure.
[0019] Figure 2 The bottom view of the pressing plate provided by the utility model is shown in the figure.
[0020] Figure 3 The structure diagram of the seepage simulation component provided by the utility model is shown in the figure.
[0021] Figure 4 The structure diagram of the mining component provided by the utility model is shown in the figure.
[0022] In the figure: 1, support platform; 2, mounting bracket; 3, servo; 4, box; 5, seepage simulation component; 51, coal column; 52, first seepage layer; 53, second seepage layer; 54, third seepage layer; 55, water storage pool; 6, mining component; 61, distributed steel plate; 62, hinged seat; 63, cylindrical joint; 64, threaded rod; 65, handle; 7, pressing plate; 8, water supply warehouse; 9, water guide pipe; 10, water outlet pipe; 11, recycled water warehouse; 12, computer; 13, CCD camera; 14, laser. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.
[0024] Please refer to Figures 1-4As shown, a three-dimensional mining seepage simulation experiment box, including support platform 1, by setting support platform 1, can be convenient for installing support 2, box 4 installation and support, installation support 2 is arranged above support platform 1, by setting installation support 2, can be convenient for installing servo 3, installation support 2 top fixedly connected with servo 3, by setting servo 3, can be convenient for driving the pressing plate 7 to move downwards and press on the third seepage layer 54 above the simulation formation pressure;Box 4 is arranged above support platform 1, by setting box 4, can be convenient for installing seepage simulation assembly 5 and mining assembly 6, box 4 is provided with seepage simulation assembly 5, seepage simulation assembly 5 includes coal pillar 51 arranged at the bottom of box 4, by setting coal pillar 51, can be convenient for supporting the first seepage layer 52, coal pillar 51 is provided with the first seepage layer 52 above, by setting the first seepage layer 52, can be convenient for simulating the rock stratum in the formation, the second seepage layer 53 is connected above the first seepage layer 52, by setting the second seepage layer 53, can be convenient for simulating the rock stratum in the formation, the third seepage layer 54 is connected above the second seepage layer 53, by setting the third seepage layer 54, can be convenient for simulating the rock stratum in the formation while opening the water storage pool 55 to hold the seepage water for simulation, the third seepage layer 54 is provided with water storage pool 55, by setting water storage pool 55, can be convenient for holding the seepage water for simulation experiment;Mining assembly 6 is arranged below box 4 for simulating mining, mining assembly 6 includes a plurality of distributed steel plates 61 connected below the first seepage layer 52, by setting distributed steel plate 61, can be convenient for supporting the bottom of the first seepage layer 52, and when moving the distributed steel plate 61 downwards, the coal seam mining can be simulated, the hinge seat 62 is fixedly connected below the distributed steel plate 61, by setting hinge seat 62, can be convenient for connecting the bottom of distributed steel plate 61 on cylindrical joint 63, hinge seat 62 is rotatably connected with cylindrical joint 63 inside, by setting cylindrical joint 63, can be convenient for connecting threaded rod 64, cylindrical joint 63 is rotatably connected with threaded rod 64 inside, by setting threaded rod 64, can be convenient for driving the distributed steel plate 61 one end to move up and down, the handle 65 is fixedly connected at the bottom of threaded rod 64, by setting handle 65, can be convenient for rotating threaded rod 64.
[0025] Reference Figure 1 And Figure 2As shown, the servo 3 output end is fixedly connected with the pressing plate 7, through the setting of the pressing plate 7, the vertical load can be applied to the third seepage layer 54 to simulate the ground pressure, the pressing plate 7 is arranged directly above the water storage pool 55, and the water supply bin 8 is fixedly connected above the mounting bracket 2 on the side adjacent to the servo 3, through the setting of the water supply bin 8, the seepage water used for simulation experiment can be stored, and the water in the water supply bin 8 is added with a dyeing agent, the material of the dyeing agent is a Nile red fluorescent tracer, and the water guide pipe 9 is fixedly connected on one side below the water supply bin 8, through the setting of the water guide pipe 9, the water in the water supply bin 8 can be guided to the water storage pool 55, and the water guide pipe 9 is a rubber telescopic hose and penetrates the mounting bracket 2 and the pressing plate 7.
[0026] Referring to Figure 1 and Figure 3 As shown, the bottom of the box body 4 is made of a high-strength steel plate, the wall of the box body 4 is made of a transparent organic panel, the coal pillar 51 is replaced by an iron block, the coal pillar 51 is arranged on the bottom of the box body 4, the first seepage layer 52, the second seepage layer 53 and the third seepage layer 54 are made of ordinary glass sand as aggregate and epoxy resin, curing agent and saturated rosin alcohol solution as cementing agent, and the first seepage layer 52, the second seepage layer 53 and the third seepage layer 54 are prepared by adjusting the proportion of the cementing agent to simulate different flexural properties of similar rock layers, the water outlet pipe 10 is arranged on the bottom of the box body 4, through the setting of the water outlet pipe 10, the water seeping to the bottom of the box body 4 can be guided out of the box body 4, the water recovery bin 11 is arranged below the water outlet pipe 10, through the setting of the water recovery bin 11, the water guided out of the box body 4 can be collected, and handles are arranged at both ends of the water recovery bin 11, through the setting of the handles, the water recovery bin 11 can be pulled to move.
[0027] Referring to Figure 3 and Figure 4 As shown, the number of the distributed steel plates 61 is ten, the top ends of the distributed steel plates 61 abut against the bottom of the first seepage layer 52, the box body 4 is provided with screw holes matched with the external threads of the threaded rods 64, the threaded rods 64 are connected with the box body 4 through threads, and the hinge seats 62, the cylindrical joints 63, the threaded rods 64 and the handles 65 are respectively arranged in two groups below the distributed steel plates 61, when the threaded rods 64 are rotated, the threaded pipes can drive the distributed steel plates 61 to move downwards for multiple times, so that the coal seam mining can be simulated, and then the change process of the water flowing fractured zone and the underground water seepage field can be simulated.
[0028] Referring to Figure 1As shown, the support platform 1 is provided with a computer 12 on one side of the center, through the setting of the computer 12, the data recorded by the CCD camera 13 and the laser 14 can be processed and a three-dimensional model can be established, the support platform 1 is provided with a CCD camera 13 on one side of the top, through the setting of the CCD camera 13, the speckle image under the laser irradiation before and after deformation and the dynamic laser surface formed by the tracer marked to-be-measured seepage field can be recorded, the support platform 1 is provided with a laser 14 on one side of the top far from the CCD camera 13, through the setting of the laser 14, the to-be-measured seepage field marked by the tracer and the speckle image can be irradiated, the output ends of the CCD camera 13 and the laser 14 are electrically connected to the input end of the computer 12 through wires.
[0029] Working principle: when the simulation experiment is carried out, the water in the water supply bin 8 is guided in the water storage pool 55 through the water guide pipe 9, then the servo motor 3 is started, the servo motor 3 drives the pressing plate 7 to move downwards, when the pressing plate 7 presses on the third seepage layer 54, each handle 65 and threaded rod 64 are sequentially rotated, when the threaded rod 64 rotates, the cylindrical joint 63 and hinged seat 62 are driven to move downwards, so that the distributed steel plate 61 can be driven to move downwards, at this time, the distributed steel plate 61 is first adjusted downwards by 10mm, after a period of time, the distributed steel plate 61 is gradually increased in the amount of downward movement (maximum adjustment 50mm), so as to simulate coal mining and increase the deformation amount of overburden rock, when the water in the water storage pool 55 seeps into the third seepage layer 54, the second seepage layer 53 and the first seepage layer 52 in sequence, the laser 14 can irradiate the to-be-measured seepage field marked by the tracer and the speckle image, the CCD camera 13 records and transmits the to-be-measured seepage field marked by the tracer and the speckle image irradiated by the laser 14 in the computer 12, the computer 12 processes each frame of image obtained, obtains the mining fissure field and seepage field on each slice, establishes a three-dimensional model, and realizes non-embedded visualization observation of the model.
[0030] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.
[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An experimental box for simulating three-dimensional mining seepage, comprising a support platform (1), characterized in that, Also includes: A mounting bracket (2) is set above the support platform (1), and a servo motor (3) is fixedly connected to the top of the mounting bracket (2); A box (4) is set above the support platform (1). Inside the box (4) is a seepage simulation component (5). The seepage simulation component (5) includes a coal pillar (51) set at the bottom of the box (4). A first seepage layer (52) is set above the coal pillar (51). A second seepage layer (53) is connected above the first seepage layer (52). A third seepage layer (54) is connected above the second seepage layer (53). A water storage tank (55) is opened inside the third seepage layer (54). A mining assembly (6) for simulating coal mining is set below the box (4). The mining assembly (6) includes multiple distributed steel plates (61) connected below the first seepage layer (52). A hinge seat (62) is fixedly connected below the distributed steel plates (61). A cylindrical joint (63) is rotatably connected inside the hinge seat (62). A threaded rod (64) is rotatably connected inside the cylindrical joint (63). A handle (65) is fixedly connected to the bottom of the threaded rod (64).
2. The experimental chamber for three-dimensional mining-induced seepage simulation experiment according to claim 1, characterized in that: The output end of the servo machine (3) is fixedly connected to a pressure plate (7), which is located directly above the water storage tank (55).
3. The experimental chamber for three-dimensional mining-induced seepage simulation experiment according to claim 2, characterized in that: A water supply tank (8) is fixedly connected to the side of the servo machine (3) above the mounting bracket (2). The water in the water supply tank (8) contains a dyeing agent, which is Nile Red fluorescent tracer. A water guide pipe (9) is fixedly connected to the side below the water supply tank (8). The water guide pipe (9) is a rubber telescopic hose. The water guide pipe (9) passes through the mounting bracket (2) and the pressure plate (7).
4. The experimental chamber for three-dimensional mining-induced seepage simulation experiment according to claim 1, characterized in that: The bottom material of the box (4) is high-strength steel plate, and the surrounding box wall material is transparent organic panel. The coal pillar (51) is replaced by iron block, and the coal pillar (51) is set around the bottom of the box (4).
5. The experimental chamber for three-dimensional mining-induced seepage simulation experiment according to claim 1, characterized in that: The first seepage layer (52), the second seepage layer (53) and the third seepage layer (54) are prepared using ordinary glass sand as aggregate and epoxy resin, curing agent and saturated rosin alcohol solution as binder. The first seepage layer (52), the second seepage layer (53) and the third seepage layer (54) are prepared by adjusting the proportion of binder to form rock layers with similar flexural properties.
6. The experimental chamber for three-dimensional mining-induced seepage simulation experiment according to claim 1, characterized in that: The bottom of the box (4) is provided with a water outlet pipe (10), and a water recovery tank (11) is provided below the water outlet pipe (10). Both ends of the water recovery tank (11) are provided with handles.
7. The experimental chamber for three-dimensional mining-induced seepage simulation experiment according to claim 1, characterized in that: The number of distributed steel plates (61) is ten, and the top of the distributed steel plates (61) abuts against the bottom of the first seepage layer (52). The box body (4) is provided with a screw hole that matches the external thread of the threaded rod (64). The threaded rod (64) is connected to the box body (4) by a thread. The hinge seat (62), the cylindrical joint (63), the threaded rod (64) and the handle (65) are respectively provided in two sets symmetrically below the distributed steel plates (61).
8. The experimental chamber for three-dimensional mining-induced seepage simulation experiment according to claim 1, characterized in that: A computer (12) is provided on one side of the center of the support platform (1), a CCD camera (13) is provided on one side above the support platform (1), and a laser (14) is provided on the side of the support platform (1) away from the CCD camera (13). The output terminals of the CCD camera (13) and the laser (14) are electrically connected to the input terminal of the computer (12) through wires.