CN111964932B - Mine shaft deformation simulation experiment device - Google Patents
Mine shaft deformation simulation experiment device Download PDFInfo
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- CN111964932B CN111964932B CN202010816562.9A CN202010816562A CN111964932B CN 111964932 B CN111964932 B CN 111964932B CN 202010816562 A CN202010816562 A CN 202010816562A CN 111964932 B CN111964932 B CN 111964932B
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Abstract
The invention discloses a mine shaft deformation simulation experiment device, which comprises: the water storage barrel (1) is connected with a high-pressure water pump (4) through a water inlet pipe (3) of the water pump, and the high-pressure water pump (4) is connected with a water inlet (6) of a pressure pipe through a water outlet pipe (5) of the water pump; a pressurizing pipe (15) and a pressure relief pipe (16) are arranged on the base (14), and electromagnetic valve water valves (17) are respectively arranged on the pressurizing pipe (15) and the pressure relief pipe (16); a shaft (7) is detachably fixedly connected with a base (14), a telescopic high-pressure water hose (10) is installed on the shaft (7) and is respectively connected with a pressure pipe (15) and a pressure relief pipe (16), and an operating platform (2) controls the opening and closing of an electromagnetic valve (17) and the starting and stopping of a high-pressure water pump (4) to realize the pressure regulation in the telescopic high-pressure water hose (10). The invention can simulate the shaft stress of different stratum dividing layers and different geological conditions, realizes the arbitrary adjustment of the pressure in the telescopic high-pressure water belt, and has more accurate simulation effect.
Description
Technical Field
The invention relates to a mine shaft deformation simulation experiment device, and belongs to the technical field of mine shaft deformation.
Background
With the continuous development and trend of the shallow mineral resources to be exhausted, the exploration and exploitation of the deep mineral resources become the strategic direction of the mineral industry development in China at present. With the rapid increase of the mining depth and the lifting load, the geological conditions are more complex, the mine pressure is continuously increased, so that the shaft bears increasingly higher pressure, and the risk of shaft deformation is aggravated. According to incomplete statistics, more than one hundred mineshafts are damaged in succession in a plurality of mining areas such as Huainan, Huaibei, Datun, Xuzhou, Yanzhou, Jining and the like in China in different degrees since the 80 s of the last century. One common feature of these deformed wellbores is that the wellbore depth is large, with a overburden thickness of several hundred meters. Shaft deformation is extremely great to lifting safety hazard, can blocking and rope loosening are caused by the possibility of damaging the normal state of a cage guide, shaft facilities and lifting equipment are damaged slightly, a cage falling accident is caused seriously, and serious casualties are caused, and the shaft deformation of a mine brings great potential safety hazards to coal mine production.
The deformation of the shaft is mainly tensile and compressive deformation of the shaft along the axial direction, deflection and bending of the center line of the shaft, well wall dislocation and horizontal extrusion damage of the well wall. Due to the fact that deformation of the well barrel is difficult to measure in actual production, workload is large, the time for occupying the well barrel is long, coal mine production is delayed, and real-time state monitoring cannot be achieved. But the deformation of the shaft causes the change of the state of the cage guide, the change of the state of the cage guide can reflect the deformation of the shaft to a certain extent, the monitoring of the state of the cage guide is much simpler than the deformation of the shaft, and the monitoring of the state of the shaft through the change of the state of the cage guide has great significance for improving the production efficiency and the safety production. The form and mechanism of the change of the state of the cage guide caused by the deformation of the shaft are mastered by monitoring the deformation of the shaft through the state of the cage guide, and the on-site experiment cannot be implemented due to the restriction of the safety and production conditions of a coal mine site, so the mechanism of the change of the state of the cage guide caused by the deformation of the shaft is researched through an experimental device. However, the existing experimental device only studies the deformation of the shaft caused by geological conditions, the change of the state of the cage guide caused by the deformation of the shaft is not considered, the mechanism of action of the change of the state of the cage guide caused by the deformation of the shaft cannot be studied, the adjustment of the acting force applied by the deformation of the shaft is difficult, certain error exists between the acting force applied by the deformation of the shaft and the stress of the shaft under the actual condition, and the mechanism of action and the state of the deformation of the shaft and the deformation of the cage guide cannot be accurately reflected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a mine shaft deformation simulation experiment device which can accurately simulate the stress and deformation of a mine shaft and reflect the action mechanism of the state change of a cage guide caused by shaft deformation.
The invention specifically adopts the following technical scheme to solve the technical problems:
a mine shaft deformation simulation experiment device comprises: the water storage device comprises a water storage barrel, an operation platform, a water pump water inlet pipe, a high-pressure water pump, a water pump water outlet pipe, a shaft, a shell, a telescopic high-pressure water hose, a water hose joint, a base, a pressurization pipe, a pressure relief pipe and an electromagnetic valve water valve, wherein the water storage barrel is connected with the high-pressure water pump through the water pump water inlet pipe, and the high-pressure water pump is connected with a water inlet of the pressurization pipe through the water pump water outlet pipe; a pressure pipe and a pressure relief pipe are arranged on the base, and electromagnetic valve water valves are respectively arranged on the pressure pipe and the pressure relief pipe; the shaft is detachably and fixedly connected with the base, a telescopic high-pressure water belt is arranged on the shaft, the telescopic high-pressure water belt is connected with the pressurizing pipe and the pressure relief pipe through a water belt joint respectively, and a cage guide beam and a cage guide are arranged in the shaft; the shaft is sleeved in the shell, and the bottom of the shell is detachably and fixedly connected with the base; the water inlet of the pressure pipe is connected with the pressure pipe, and the pressure relief pipe is connected with the water outlet of the pressure relief pipe; the operation panel is electrically connected with the high-pressure water pump and the electromagnetic valve water valve respectively to control the opening and closing of the electromagnetic valve water valve and the starting and stopping of the high-pressure water pump, and pressure adjustment in the telescopic high-pressure water belt is achieved.
Further, as a preferred technical solution of the present invention: the shaft is fixedly connected with the base in a mode that a bolt is matched with a threaded hole.
Further, as a preferred technical solution of the present invention: the bottom of the shell is fixedly connected with the base in a mode of matching the bolt with the threaded hole.
Further, as a preferable technical solution of the present invention: the telescopic high-pressure water belt is installed on the shaft in sections.
Further, as a preferable technical solution of the present invention: the shell adopts a split type.
Further, as a preferred technical solution of the present invention: a baffle plate is arranged in the shell.
Further, as a preferred technical solution of the present invention: the partition board is provided with a rubber pad.
By adopting the technical scheme, the invention can produce the following technical effects:
according to the device, the acting force of the shaft is applied by adopting the telescopic high-pressure water belt, the shaft stress of different stratum dividing layers and different geological conditions can be simulated, the telescopic high-pressure water belt is connected with the pressure relief pipe and the pressurizing pipe through the water belt connector, the arbitrary regulation of the pressure in the telescopic high-pressure water belt is realized by controlling the electromagnetic valve water valves on the pressurizing pipe and the pressure relief pipe, and the regulation of the horizontal pressure borne by the shaft is realized; the sectional type telescopic high-pressure water belt can apply different preset pressures to achieve preset deformation, so that the simulation effect is more accurate; moreover, the shell adopts a split type, so that the installation is convenient; and the partition plate is arranged in the shell, so that the telescopic high-pressure water hoses in the whole section or different sections exert acting force independently without influencing each other, and rubber pads with different thicknesses can be arranged on the partition plate, so that the vertical additional force of different sizes can be adjusted on the shaft, and the stress of the shaft is more similar to the actual working condition. The experimental device can accurately simulate the action mechanism of the change of the state of the cage guide caused by the deformation of the shaft and the deformation form of the cage guide caused by the deformation of shafts of different types, provides a theoretical basis for monitoring the deformation of the shaft through the cage guide, and improves the safety of coal mine production.
Drawings
Fig. 1 is a schematic overall structure diagram of the mine shaft deformation simulation experiment device.
FIG. 2 is a schematic diagram of a wellbore and water bank configuration of the present invention.
FIG. 3 is a cross-sectional view of a wellbore and water bank of the present invention.
Fig. 4 is a schematic view of the base structure of the present invention.
Fig. 5 is a top view of the base structure of the present invention.
Fig. 6 is a schematic view of the overall structure of the housing of the present invention.
Fig. 7 is a schematic view of a side structure of the housing of the present invention.
The reference numbers in the drawings illustrate: 1. a water storage barrel; 2. an operation table; 3. a water inlet pipe of a water pump; 4. a high pressure water pump; 5. a water outlet pipe of the water pump; 6. a water inlet of the pressure pipe; 7. a wellbore; 8. a housing; 9. a pressure relief pipe water outlet; 10. a telescopic high-pressure water band; 11. a water hose coupling; 12. a cage guide beam; 13. a cage guide; 14. a base; 15. a pressurizing pipe; 16. a pressure relief pipe; 17. a solenoid valve water valve; 18. a threaded hole 1; 19. a threaded hole 2; 20. a threaded hole 3; 21. a separator.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 4, the invention provides a mine shaft deformation simulation experiment device, which mainly comprises: the water storage device comprises a water storage barrel 1, an operation platform 2, a water pump inlet pipe 3, a high-pressure water pump 4, a water pump outlet pipe 5, a pressure pipe water inlet 6, a shaft 7, a shell 8, a pressure relief pipe water outlet 9, a telescopic high-pressure water hose 10, a water hose joint 11, a tank guide beam 12, a tank guide 13, a base 14, a pressure pipe 15, a pressure relief pipe 16 and an electromagnetic valve water valve 17.
The water storage barrel 1 is connected with a high-pressure water pump 4 through a water inlet pipe 3 of the water pump, and the high-pressure water pump 4 is connected with a water inlet 6 of the pressurizing pipe through a water outlet pipe 5 of the water pump; a pressurizing pipe 15 and a pressure relief pipe 16 are arranged on the base 14, and electromagnetic valve water valves 17 are respectively arranged on the pressurizing pipe 15 and the pressure relief pipe 16, as shown in fig. 4; the shaft 7 is detachably and fixedly connected with a base 14, as shown in fig. 2, a telescopic high-pressure water belt 10 is installed on the shaft 7, the telescopic high-pressure water belt 10 is respectively connected with a pressurizing pipe 15 and a pressure relief pipe 16 through a water belt joint 11, and a tank guide beam 12 and a tank guide 13 are installed inside the shaft 7, as shown in fig. 3; the casing 8 is used for sleeving the shaft 7, and the bottom of the casing 8 is detachably and fixedly connected with the base 14; the pressurizing pipe water inlet 6 is connected with the pressurizing pipe 15, and the pressure relief pipe 16 is connected with the pressure relief pipe water outlet 9; the operation table 2 is electrically connected with the high-pressure water pump 4 and the electromagnetic valve water valve 17 respectively to control the opening and closing of the electromagnetic valve water valve 17 and the starting and stopping of the high-pressure water pump 4, the high-pressure water pump 4 can be used for pressurizing the telescopic high-pressure water hose 10, and pressure adjustment in the telescopic high-pressure water hose 10 is achieved.
In this embodiment, preferably, the shaft 7 is fixedly connected to the base 14 in a manner that a bolt is engaged with a threaded hole, as shown in fig. 5, a threaded hole 118 and a threaded hole 219 are provided on the base 14, a bolt is provided on the shaft 7, and the bolt is inserted into the threaded hole 1 through the shaft 7 and then fixed to the base 14 through thread engagement; and, the bottom of shell 8 adopts bolt and screw hole complex mode and base 14 fixed connection equally, namely sets up the bolt equally through shell 8 bottom, and the bolt passes shell 8 bottom and inserts behind the screw hole 2 and fixes at base 14 through the screw-thread fit realization.
In the invention, the telescopic high-pressure water belt 10 can be installed in the shaft 7 in sections, and can simulate the pressure on each section of the shaft 7 under different geological conditions.
As shown in fig. 6, the housing 8 of the present invention is split and matched with the screw hole 320 through a bolt to achieve locking, and is convenient to install; further, as shown in fig. 7, a partition plate 21 is arranged in the housing 8, so that the whole or different segments of the telescopic high-pressure water hose can independently apply acting force without mutual influence; and the rubber pads with different thicknesses can be arranged on the partition plate 21, so that the buffering effect of applying vertical additional forces with different sizes to the shaft can be realized.
The working principle of the device is as follows: under the normal working state of the shaft 7, the shaft 7 is only under the action of the ground pressure stress, the ground pressure stress on each section of the shaft can be calculated through a Qin's formula and a heavy hydraulic pressure formula, the operating console 2 opens the high-pressure water pump 4 and the electromagnetic valve 17 on the pressure pipe 15 to supply water to the telescopic high-pressure water belt 10, and when the corresponding telescopic high-pressure water belt 10 reaches the preset pressure, the electromagnetic valve 17 is closed. When all the telescopic high-pressure water hoses 10 reach the preset pressure, the high-pressure water pump 4 stops working. When the telescopic high-pressure water hose 10 needs to be decompressed, the operating platform 2 opens the pressure relief pipe 16 and the electromagnetic valve water valve 17 of the pressure relief pipe water outlet 9, and water of the telescopic high-pressure water hose 10 is discharged to reach a preset pressure. When simulating different types of wellbore 7 deformation, the operation platform 2 achieves the effect of simulating the corresponding wellbore deformation type by applying different predetermined pressures to the whole or each section of the telescopic high-pressure water band 10 to achieve the predetermined deformation, and causes the state of the corresponding cage guide 13 to change.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (6)
1. A mine shaft deformation simulation experiment device is characterized by comprising: the water storage device comprises a water storage barrel (1), an operation table (2), a water pump water inlet pipe (3), a high-pressure water pump (4), a water pump water outlet pipe (5), a shaft (7), a shell (8), a telescopic high-pressure water belt (10), a water belt joint (11), a base (14), a pressure pipe (15), a pressure relief pipe (16) and a solenoid valve water valve (17), wherein the water storage barrel (1) is connected with the high-pressure water pump (4) through the water pump water inlet pipe (3), and the high-pressure water pump (4) is connected with a pressure pipe water inlet (6) through the water pump water outlet pipe (5); a pressurizing pipe (15) and a pressure relief pipe (16) are arranged on the base (14), and electromagnetic valve water valves (17) are respectively arranged on the pressurizing pipe (15) and the pressure relief pipe (16); the shaft (7) is detachably and fixedly connected with a base (14), a telescopic high-pressure water belt (10) is installed on the shaft (7) in a segmented mode, the telescopic high-pressure water belt (10) is respectively connected with a pressurizing pipe (15) and a pressure relief pipe (16) through a water belt joint (11), and a cage guide beam (12) and a cage guide (13) are installed inside the shaft (7); the shell (8) is used for sleeving the shaft (7) and the bottom of the shell (8) is detachably and fixedly connected with the base (14); the water inlet (6) of the pressure pipe is connected with the pressure pipe (15), and the pressure relief pipe (16) is connected with the pressure relief pipe water outlet (9); the operating platform (2) is electrically connected with the high-pressure water pump (4) and the electromagnetic valve water valve (17) respectively to control the opening and closing of the electromagnetic valve water valve (17) and the starting and stopping of the high-pressure water pump (4), and pressure adjustment in the telescopic high-pressure water hose (10) is achieved.
2. The mine shaft deformation simulation experiment device of claim 1, wherein: the shaft (7) is fixedly connected with the base (14) in a mode that bolts are matched with the threaded holes.
3. The mine shaft deformation simulation experiment device of claim 1, wherein: the bottom of the shell (8) is fixedly connected with the base (14) in a mode of matching bolts with threaded holes.
4. The mine shaft deformation simulation experiment device of claim 1, wherein: the shell (8) adopts a split type.
5. The mine shaft deformation simulation experiment device of claim 1, wherein: a clapboard (21) is arranged in the shell (8).
6. The mine shaft deformation simulation experiment device of claim 5, wherein: the partition plate (21) is provided with a rubber pad.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010816562.9A CN111964932B (en) | 2020-08-14 | 2020-08-14 | Mine shaft deformation simulation experiment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010816562.9A CN111964932B (en) | 2020-08-14 | 2020-08-14 | Mine shaft deformation simulation experiment device |
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| CN111964932A CN111964932A (en) | 2020-11-20 |
| CN111964932B true CN111964932B (en) | 2022-09-06 |
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