CN210464853U - Experimental table for simulating roadway loading - Google Patents
Experimental table for simulating roadway loading Download PDFInfo
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- CN210464853U CN210464853U CN201920797679.XU CN201920797679U CN210464853U CN 210464853 U CN210464853 U CN 210464853U CN 201920797679 U CN201920797679 U CN 201920797679U CN 210464853 U CN210464853 U CN 210464853U
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Abstract
A simulation tunnel load laboratory bench includes: the supporting shell is internally provided with an accommodating space; and the dynamic load pressurizing mechanism is arranged around the supporting shell and can apply vibration force to the material to be tested in the accommodating space. The utility model discloses in the use, place the similar material in tunnel in the accommodation space, exert the shaking force through the similar material of dynamic load loading mechanism in to the accommodation space, realize the simulation of the shaking force that receives similar material, and then realize the simulation of the various vibrations that receive in the tunnel.
Description
Technical Field
The utility model relates to a load experimental apparatus especially relates to a simulation tunnel receives load laboratory bench.
Background
At present, along with the mining of mines and the construction of large underground engineering in China, the dynamic disaster problem of various mines and tunnels is more and more emphasized, particularly in the coal mine industry, the coal mining in China has been deeply buried for kilometers, and in such a high confining pressure underground space, the dynamic disaster happens more and more frequently, which causes great attention of a plurality of researchers, and the dynamic disaster has great harm to the mines, thereby not only influencing normal production activities, but also endangering the safety of personnel and equipment. The engineering conditions for mine mining and tunnel excavation are complex, and experiments in relevant aspects are not easy to perform, and particularly, the experiments are difficult to perform under the conditions in a laboratory, so that the research in the aspect mainly uses a method for simulating experiments by using similar materials. At present, similar material experiment platform is implemented mainly to be concentrated on two-dimentional static load, and two-dimentional dynamic load, three-dimensional static load is in the aspect of, and can the tunnel receive various vibrations among the actual exploitation process, therefore current experimental apparatus can not satisfy the demand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned problem that exists among the prior art, provide a simulation tunnel loaded experiment platform that can simulate tunnel vibrations.
In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:
a simulation tunnel load laboratory bench includes:
the supporting shell is internally provided with an accommodating space;
and the dynamic load pressurizing mechanism is arranged around the supporting shell and can apply vibration force to the material to be tested in the accommodating space.
Simulation tunnel load laboratory bench, wherein, include:
a base table;
the lower end of the bearing bottom beam is fixedly connected with the base platform;
the bottom of the bottom plate is fixedly connected with the bearing bottom beam, and the upper end of the bottom plate is fixedly connected with the supporting shell.
Simulation tunnel load laboratory bench, wherein, support the casing and include:
a plurality of shelf subblocks, the shelf subblock is constituteed support shell lateral wall and roof, include:
a support plate;
the support frames are arranged around the support plate, and the two adjacent shelf sub-blocks are fixedly connected through the respective support frames.
Simulation tunnel load laboratory bench, wherein, include:
and the static load applying mechanism is arranged on the supporting plate and is used for applying static pressure to the inside of the accommodating space.
Simulation tunnel loaded experiment platform, wherein, the mechanism is applyed to the static load includes:
the first hydraulic telescopic device is arranged on the supporting plate and is provided with a hydraulic shaft, and the hydraulic shaft movably penetrates through the supporting plate;
and the first pressurizing plate is connected with the hydraulic shaft and is arranged in the accommodating space.
Simulation tunnel load laboratory bench, wherein, include:
the excavation port is arranged on one side of the supporting shell;
one end of the roadway excavation device extends into the accommodating space through the excavation opening;
and the second hydraulic telescopic device is provided with a hydraulic telescopic shaft, and the outer end of the hydraulic telescopic shaft is connected with the roadway excavation device.
Simulation tunnel load laboratory bench, wherein, the backup pad of excavation mouth one side is transparent material.
Simulation tunnel loaded experiment platform, wherein, dynamic load loading system includes:
the dynamic load shell is provided with a second accommodating space;
the upper part of the power shaft is provided with a third accommodating space;
the loading plate is arranged in the accommodating space, and one side of the loading plate is connected with the power shaft;
a magnetic force mechanism comprising:
the first permanent magnet is arranged in the third accommodating space;
the second permanent magnet is arranged in the third accommodating space and is arranged above the first permanent magnet;
the third permanent magnet is arranged in the third accommodating space and is arranged below the first permanent magnet;
the coil is arranged in the second accommodating space and is arranged outside the power shaft;
the power shaft limiter is arranged in the second accommodating part, arranged at the upper end and the lower end of the power shaft and used for limiting the power shaft;
the top buffer spring is arranged at the upper end of the first permanent magnet, and the upper end of the top buffer spring is connected with the top of the second accommodating space;
the lower buffer spring is arranged at the lower end of the power shaft and is connected with the bottom of the second accommodating space;
and the first permanent magnet limiter is arranged in the third accommodating space and used for limiting the first permanent magnet.
Simulation tunnel loaded experiment platform, wherein, dynamic load loading system includes:
and the coil fixer is arranged in the second accommodating space and used for fixing the coil.
Simulation tunnel load laboratory bench, wherein, include:
and the shooting device is arranged on one transparent side of the supporting shell and used for shooting the inside of the accommodating space.
Simulation tunnel load laboratory bench, wherein, include:
the movable load supporting frame is arranged in the movable load supporting frame, the movable load supporting frame is connected with one end, far away from the supporting shell, of the movable load pressurizing mechanism, and the lower end of the movable load pressurizing mechanism is slidably arranged on the base platform.
Simulation tunnel loaded experiment platform, wherein, dynamic load loading system includes:
and one end of the transmission shaft is in contact with the power shaft, and the other end of the transmission shaft is connected with the loading plate.
Simulation tunnel load laboratory bench, wherein, the power shaft with the connection can be dismantled to the transmission shaft.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses in the use, place the similar material in tunnel in the accommodation space, exert the shaking force through the similar material of dynamic load loading mechanism in to the accommodation space, realize the simulation of the shaking force that receives similar material, and then realize the simulation of the various vibrations that receive in the tunnel.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a side view of the utility model during a bow simulation experiment;
FIG. 3 is an enlarged view taken at A in FIG. 1;
FIG. 4 is an enlarged view of FIG. 1 at B;
FIG. 5 is a schematic view of the detachable connection between the power shaft and the transmission shaft of the present invention;
FIG. 6 is an enlarged view at C of FIG. 5;
FIG. 7 is a view of the dynamic load pressurizing mechanism of the present invention;
FIG. 8 is a view of the connection of the hydraulic shaft to the first compression plate;
figure 9 is a cross-sectional view of a material to be tested according to the present invention;
Detailed Description
Referring to fig. 1-9, it should be understood by those skilled in the art that the terms "upper", "bottom", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms should not be construed as limiting the present invention.
It should be noted that, in the course of excavation of a roadway, the roadway can extend deep into the bottom kilometer, dynamic disasters are more and more frequent in such a high confining pressure underground space, in order to better study the influence of pressure in the roadway on roadway operation, researchers are required to simulate a mine, when the existing pressure is simulated, a two-dimensional static load or a three-dimensional static load is usually applied to a similar material, but the roadway can be subjected to various vibrations in the course of excavation, and the existing experimental device cannot meet the existing simulation, therefore,
this embodiment is a simulation tunnel load laboratory bench, includes:
a supporting housing 100 having an accommodating space 110 therein;
the dynamic loading pressurizing mechanism 200 is disposed around the supporting housing 100 and can apply a vibration force to the material to be tested in the accommodating space 110.
In the using process of the embodiment, the roadway similar material is placed in the accommodating space 110, and the dynamic loading pressurizing mechanism 200 applies a vibration force to the similar material in the accommodating space 110, so that the simulation of the vibration force applied to the similar material is realized, and further the simulation of various vibrations applied to the roadway is realized;
it should be noted that, the similar material can adopt stone sand or a mixture thereof as required in the place of simulation during tunnel simulation, and specifically when testing the pressure that receives in the tunnel, can pre-buried pressure sensor in the similar material, and then can measure the vibrations pressure that the similar material received, and then realize the measurement to material pressure.
The simulation tunnel load laboratory bench that this embodiment provided includes:
a base table 300;
a load-bearing bottom beam 400, the lower end of which is fixedly connected with the base platform 300;
the bottom of the bottom plate 500 is fixedly connected with the load-bearing bottom beam 400, and the upper end of the bottom plate 500 is fixedly connected with the support shell 100.
When in use, the base platform 300 supports the bearing bottom beam 400, the bearing bottom beam 400 supports the bottom plate 500, and the bottom plate 500 supports the support shell 100, so that the base platform 300 supports the whole device;
it should be noted that the load-bearing bottom beam 400 and the base platform 300 may be connected by welding or bolts, the load-bearing bottom beam 400 and the bottom plate 500 may also be connected by welding or bolts, when the bottom plate 500 is connected with the supporting housing 100, the bottom plate 500 may be connected by bolts, when there is a need to put a material to be tested into the accommodating space as the bottom wall of the supporting housing 100, the material to be tested may be put into the accommodating space 110 from the lower part by detaching the bottom plate 500, it should be noted that the periphery of the base platform may be further provided with a support frame, the support frame is arranged around the supporting housing for supporting the dynamic load pressurizing device, the specific structure of the support frame may not be limited, and the supporting housing 100 may be supported;
the simulation tunnel load laboratory bench that this embodiment provided supports casing 100 and includes:
the shelf sub-blocks 120, the plurality of shelf sub-blocks 120 constitute the support housing 100 side walls and the top wall, including:
a support plate 121;
the support frames 122 are arranged around the shelf sub-blocks 120, and two adjacent shelf sub-blocks 120 are fixedly connected through the respective support frames 122;
the shelf sub-blocks 120 are composed of a supporting plate 121 and a supporting frame 122, the two adjacent shelf sub-blocks 120 are connected through the supporting frame 122, exemplarily, the shelf sub-blocks 120 and the supporting frame 122 can be connected through welding, one end of the shelf sub-blocks 120 is flush with the supporting plate 121, the other end of the shelf sub-blocks is higher than the supporting plate 121, the higher portions can be used for connecting the two adjacent shelf sub-blocks 120, and during specific connection, the two adjacent supporting frames 122 can be connected through screws and can also be welded.
This implementation provides a simulation tunnel load laboratory bench includes:
the static load applying mechanism 600 is arranged on the support plate 121 and used for applying static pressure to the inside of the accommodating space 110, and the static pressure is applied to the inside of the accommodating space 110 through the static load applying mechanism 600, so that the static pressure applied to a roadway can be simulated; illustratively, the static load applying mechanism includes,
the first hydraulic telescopic device 610 is arranged on the support plate 121 and is provided with a hydraulic shaft 611, and the hydraulic shaft 611 movably penetrates through the support plate 121;
the first pressing plate 620 is connected to the hydraulic shaft 611 and disposed inside the accommodating space 110.
When the device is used, the first hydraulic telescopic device 610 pressurizes the pressurizing plate 620 through the hydraulic shaft, the pressurizing plate 620 pressurizes a material to be measured in the accommodating space 110, and finally, a sensor embedded in the material to be measured determines the static load pressure; it should be noted that the first hydraulic telescopic device 610 may be implemented by using a hydraulic jack, and a hydraulic telescopic shaft of the jack may be fixedly connected to the pressing plate 620 by welding or screws.
The experimental bench for simulating roadway loading provided by the embodiment comprises,
an excavation 700 provided at one side of the support case 100;
one end of the roadway excavation device 800 extends into the accommodating space through the excavation port 700;
the second hydraulic telescopic device 900 is provided with a hydraulic telescopic shaft, and the outer end of the hydraulic telescopic shaft is connected with the roadway excavation device 800;
and the second support frame 1000 is connected with the hydraulic telescopic device and used for supporting the hydraulic telescopic device.
The utility model discloses during the use, in order to simulate the tunnel excavation process, the support frame supports the second hydraulic stretching device, the second hydraulic stretching device is through making a round trip to stretch out and draw back, pulling tunnel excavation device 800, in filling with the accommodation space 110 of the volume material of awaiting measuring, specific second hydraulic stretching device drives tunnel excavation device 800 and makes a round trip to move in accommodation space 110, because tunnel completion device stretches into accommodation space 110 through excavation mouth 700, can transport the material to be tested out through excavation mouth 700, in the simulation tunnel excavation process, the transport of material, therefore, the sensor in the material to be tested can be better the simulation tunnel excavation process received power, it needs to explain, the excavation device can set up into the hollow stainless steel pipe of a rectangle or tunnel shape, put him in similar material, through further returning back and advancing, simulating one-time excavation;
illustratively, the supporting plate on one side of the excavation port 700 is made of a transparent material, illustratively, toughened glass can be adopted, when the toughened glass is connected with the supporting frame 122, the toughened glass is connected through bolts, and the supporting plate on one side of the excavation port is made of a transparent material, so that the change of a roadway during roadway excavation can be observed more directly;
exemplarily, still included the shooting device, set up in the transparent one side of support shell for shoot in the accommodation space, shoot and be the change that can better observe inside similar material.
The simulation tunnel loaded laboratory bench that this embodiment provided, dynamic load loading mechanism includes:
the dynamic loading housing 210 has a second accommodating space;
a power shaft 220 having a third accommodating space at the upper part thereof;
a loading plate disposed in the accommodating space 110, one side of the loading plate being connected to the power shaft 220;
a magnetic force mechanism 230, comprising:
a first permanent magnet 231 disposed in the third accommodation space;
a second permanent magnet 232 disposed in the third receiving space and above the first permanent magnet 231;
a third magnet 233 disposed in the third receiving space and below the first permanent magnet 231;
the coil 240 is arranged in the second accommodating space and is arranged outside the power shaft;
the power shaft limiter 250 is arranged in the second accommodating chamber, arranged at the upper end and the lower end of the power shaft 220 and used for limiting the power shaft 220;
a top buffer spring 260 disposed at the upper end of the first permanent magnet, the upper end being connected to the top of the second accommodating space;
the lower buffer spring 270 is arranged at the lower end of the power shaft and is connected with the bottom of the second accommodating space;
and the first permanent magnet limiter 280 is arranged in the third accommodating space and used for limiting the first permanent magnet 231.
During the use, after coil 240 lets in the alternating current, first permanent magnet 231 can reciprocate under the effect of magnetic force, and then drives power shaft 220 and reciprocates, realizes reciprocating of loading plate 221, and then simulates the process of vibrations, and similar material receives the power take off of dynamic load, receives vibrations in the tunnel equivalently, simulates the vibrations effect that the tunnel received in the pit, is denoted by 620 in the figure.
It should be noted that the power shaft 220 is made of a high-strength non-magnetic material, such as an aluminum alloy.
In an exemplary embodiment, the dynamic load pressing mechanism 200 includes a coil holder 290 disposed in the second accommodating space for fixing the coil 240, and the coil holder 290 for fixing the coil 240.
The simulation tunnel loaded experiment table provided by the embodiment comprises a dynamic load support frame 130, wherein a support shell 100 is arranged in the dynamic load support frame 130, the dynamic load support frame 130 and a dynamic load pressurizing mechanism 200 are far away from one end of the support shell 100 and connected, the lower end of the support shell is slidably arranged on a base platform 300, and the lower end of the support shell is connected with a third hydraulic telescopic device 131.
The dynamic load support frame 130 is used for supporting dynamic load, the dynamic load can apply dynamic pressure, the lower end of the dynamic load support frame is slidably arranged on the base platform 300, specifically, an I-shaped track can be arranged on the base platform 300, and meanwhile, the lower end of the dynamic load support frame is arranged in a matched shape, so that the movement of the dynamic load support frame 130 is ensured;
an exemplary dynamic load pressurization mechanism comprises: one end of the transmission shaft 220a is in contact with the power shaft 220, and the other end of the transmission shaft is connected with the loading plate, as shown in fig. 1 and 3, when similar materials are required to be loaded into the supporting shell 100, the shelf sub-blocks need to be disassembled, in order to facilitate the disassembly, the transmission shaft 220a is pressed into one side of the accommodating space after a certain pressure is applied through the power shaft, the power shaft 220 and the transmission shaft 220a form a gap, the movable load supporting frame 130 can be moved away through the extension and retraction of the third hydraulic telescopic device, the shelf sub-blocks are convenient to disassemble, the reverse operation is performed during the installation, one end, far away from the base table 300, of the third hydraulic telescopic device is connected with the second supporting frame, and the second supporting frame supports.
For example, as shown in fig. 5 and 6, the power shaft 220 and the transmission shaft 220a are detachably connected, and before the above steps are performed, only the power shaft 220 and the transmission shaft 220a need to be detached, so that the detachment is convenient, and during the specific connection, bolt plates can be respectively connected to the power shaft and the transmission shaft 220a, and then the power shaft and the transmission shaft can be detachably connected through bolts and screws.
The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (10)
1. The utility model provides a simulation tunnel load laboratory bench which characterized in that includes:
a supporting housing (100) having an accommodating space (110) therein;
the dynamic load pressurizing mechanism (200) is arranged around the supporting shell (100) and can apply vibration force to the material to be tested in the accommodating space (110).
2. The simulated roadway loaded experiment table of claim 1, comprising:
a base table (300);
the lower end of the bearing bottom beam (400) is fixedly connected with the base platform (300);
the bottom of the bottom plate (500) is fixedly connected with the bearing bottom beam (400), and the upper end of the bottom plate (500) is fixedly connected with the support shell (100).
3. A simulated roadway loaded experiment table according to claim 2, wherein the support housing (100) comprises:
a plurality of shelf sub-blocks (120), a plurality of the shelf sub-blocks (120) constituting the side walls and the top wall of the support case (100), comprising:
a support plate (121);
the support frames (122) are arranged on the periphery of the support plate (121), and the two adjacent shelf sub-blocks (120) are fixedly connected through the respective support frames (122).
4. The simulated roadway loaded experiment table of claim 3, comprising: a static load applying mechanism (600) provided on the support plate (121) for applying a static pressure to the inside of the accommodating space, the static load applying mechanism (600) comprising:
the first hydraulic telescopic device (610) is arranged on the supporting plate (121) and is provided with a hydraulic shaft (611), and the hydraulic shaft (611) movably penetrates through the supporting plate (121);
and a first pressurizing plate (620) connected to the hydraulic shaft (611) and disposed inside the accommodating space (110).
5. The simulated roadway loaded experiment table of claim 4, comprising:
an excavation (700) provided on one side of the support case (100);
one end of the roadway excavation device (800) extends into the accommodating space through the excavation opening (700);
and the second hydraulic telescopic device (900) is provided with a hydraulic telescopic shaft, and the outer end of the hydraulic telescopic shaft is connected with the roadway excavation device (800).
6. The simulated roadway loading experiment table according to claim 5, wherein the supporting plate on one side of the excavation opening (700) is made of transparent materials.
7. The simulated roadway loaded experiment table according to claim 6, wherein the dynamic loading pressurizing mechanism (200) comprises:
the dynamic load shell (210) is provided with a second accommodating space;
the upper part of the power shaft (220) is provided with a third accommodating space;
the loading plate is arranged in the accommodating space (110), and one side of the loading plate is connected with the power shaft (220);
a magnetic force mechanism (230) comprising:
a first permanent magnet (231) disposed in the third accommodation space;
a second permanent magnet (232) disposed in the third accommodating space and above the first permanent magnet (231);
a third permanent magnet (233) disposed in the third accommodating space and below the first permanent magnet (231);
a coil (240) arranged in the second accommodating space and arranged outside the power shaft;
the power shaft limiter (250) is arranged in the second accommodating cavity, arranged at the upper end and the lower end of the power shaft (220) and used for limiting the power shaft (220);
the top buffer spring (260) is arranged at the upper end of the first permanent magnet, and the upper end of the top buffer spring is connected with the top of the second accommodating space;
the lower buffer spring (270) is arranged at the lower end of the power shaft and is connected with the bottom of the second accommodating space;
and the first permanent magnet limiter (280) is arranged in the third accommodating space and used for limiting the first permanent magnet (231).
8. The simulated roadway loaded experiment table of claim 7, comprising:
the movable load supporting frame (130), the supporting shell (100) is arranged in the movable load supporting frame (130), the movable load supporting frame (130) is connected with one end, far away from the supporting shell (100), of the movable load pressurizing mechanism (200), the lower end of the movable load supporting frame is slidably arranged on the base platform (300), and the lower end of the movable load supporting frame is connected with a third hydraulic telescopic device (131).
9. The simulated roadway loaded experiment table according to claim 8, wherein the dynamic loading pressurizing mechanism (200) comprises:
and one end of the transmission shaft (220a) is in contact with the power shaft (220), and the other end of the transmission shaft is connected with the loading plate.
10. The simulated roadway loaded experiment table of claim 9, wherein the power shaft (220) is detachably connected with the transmission shaft (220 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920797679.XU CN210464853U (en) | 2019-05-30 | 2019-05-30 | Experimental table for simulating roadway loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920797679.XU CN210464853U (en) | 2019-05-30 | 2019-05-30 | Experimental table for simulating roadway loading |
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| Publication Number | Publication Date |
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| CN210464853U true CN210464853U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920797679.XU Expired - Fee Related CN210464853U (en) | 2019-05-30 | 2019-05-30 | Experimental table for simulating roadway loading |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057526A (en) * | 2019-05-30 | 2019-07-26 | 安徽理工大学 | Simulate tunnel experimental bench loaded |
| CN111764888A (en) * | 2020-07-01 | 2020-10-13 | 中国科学院地质与地球物理研究所 | Visual device for simulating tunnel excavation |
-
2019
- 2019-05-30 CN CN201920797679.XU patent/CN210464853U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057526A (en) * | 2019-05-30 | 2019-07-26 | 安徽理工大学 | Simulate tunnel experimental bench loaded |
| CN110057526B (en) * | 2019-05-30 | 2024-02-13 | 安徽理工大学 | Experiment table for simulating loading of roadway |
| CN111764888A (en) * | 2020-07-01 | 2020-10-13 | 中国科学院地质与地球物理研究所 | Visual device for simulating tunnel excavation |
| CN111764888B (en) * | 2020-07-01 | 2021-03-16 | 中国科学院地质与地球物理研究所 | Visual device for simulating tunnel excavation |
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Granted publication date: 20200505 Termination date: 20210530 |