CN211453618U - Experimental device for be used for simulating underground rock laser tunnelling - Google Patents
Experimental device for be used for simulating underground rock laser tunnelling Download PDFInfo
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- CN211453618U CN211453618U CN202020082008.8U CN202020082008U CN211453618U CN 211453618 U CN211453618 U CN 211453618U CN 202020082008 U CN202020082008 U CN 202020082008U CN 211453618 U CN211453618 U CN 211453618U
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- 239000011435 rock Substances 0.000 title claims abstract description 100
- 230000005641 tunneling Effects 0.000 claims abstract description 61
- 238000004088 simulation Methods 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims description 17
- 238000002474 experimental method Methods 0.000 claims description 15
- 230000005284 excitation Effects 0.000 claims description 13
- 238000009412 basement excavation Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 24
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000001174 ascending effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model discloses an experimental device for simulating laser tunneling of underground rock, which comprises a rock stress simulation device and a laser tunneling device, wherein a rock body with the same property as the underground rock stratum to be simulated is selected, and then the rock body is placed in the rock stress simulation device to apply stress to the rock body, so as to simulate the actual stress condition of the underground rock stratum; then, simulating tunneling work of the rock body through a laser tunneling device, transmitting the detected stress value to a computer by each stress sensor in real time in the tunneling process, finally obtaining the stress distribution and the change condition of the rock body in the tunneling process by the computer according to the stress change data detected by each stress sensor, determining a required supporting scheme by a worker according to the obtained stress distribution and the change condition, and finally providing data support for the supporting work in the actual tunneling process by adopting a laser rock breaking technology; in addition, the device has no indoor environmental pollution, and is a green and environment-friendly experimental device.
Description
Technical Field
The utility model relates to an experimental apparatus specifically is an experimental apparatus for be used for simulating underground rock laser tunnelling.
Background
Because shallow coal resources in China are almost used up, more and more coal mines are mined towards the deep part. In addition, along with the strategic advance of our country to the western development, the challenges of tunnel engineering of high-speed railway and tibetan railway at high altitude are more and more severe. Due to the fact that the hardness degree of the rock is large and the working environment is severe, the engineering has many limitations in the tunneling process and has many engineering dangers. The tunneling of deep surrounding rock is not only that the excavation difficulty is large, the temperature and the underground pressure intensity are gradually increased along with the tunneling depth, the shallow tunneling engineering is greatly limited, and particularly the tunneling of western highlands faces the surrounding rock formed by perennial frozen soil, and the problems of unpredictable performance in the tunneling and supporting engineering are faced. The simulation of underground rock engineering excavation and excavation under complex working conditions is carried out under the condition of artificial control of a laboratory, and the simulation method is an important way for researching efficient and safe excavation and supporting of underground engineering. Therefore, the research on the underground engineering tunneling physical model experimental device which is strong in rock breaking capacity, safe and reliable has important practical significance.
With the development of the high-energy laser rock breaking technology, the method can be applied to the deep surrounding rock tunneling engineering to greatly improve the engineering quality. The laser rock breaking technology is a non-mechanical contact type physical rock breaking method, high-energy laser emitted by a laser is utilized to irradiate the surface of a rock, light energy is converted into heat energy to be transmitted to the interior of the rock, the rock is broken under the action of heat, and the laser rock breaking technology has great application potential in roadway tunneling and tunnel engineering. The existing laser rock breaking technology mainly adopts an auxiliary mode and is matched with a TBM (full-face hard rock tunnel boring machine) to carry out tunneling work. However, the current underground engineering excavation indoor simulation is mainly used for researching the excavation situation of the TBM, and the following defects generally exist: firstly, the degree of automation is not high, manual cooperation is still needed, severe working environment cannot be effectively coped with, and the tunneling efficiency is low; secondly, the machine is huge, the machine is not easy to be disassembled and assembled before and after working, the impact on the vibration of surrounding rocks is large in the tunneling process, and the noise pollution and the dust pollution are serious; thirdly, the stress change of the surrounding rock cannot be researched, the post-tunneling protection work cannot be suggested, the research on the deformation of the surrounding rock is difficult to carry out, and the analysis and the research on data are not facilitated; at present, a device for simulating in a tunneling chamber for laser rock breaking does not exist, so that the stress condition of the required underground surrounding rock can be simulated, the change condition of the underground surrounding rock in the laser rock breaking process can be monitored in real time, and finally data support is provided for supporting work in the tunneling process by adopting a laser rock breaking technology.
Disclosure of Invention
The problem to above-mentioned prior art exists, the utility model provides an experimental apparatus for be used for simulating underground rock laser tunnelling can not only simulate the stress condition of required underground surrounding rock to can carry out real-time supervision to the stress distribution and the situation of change of the broken rock in-process underground surrounding rock of laser, finally provide data support for the work of strutting that actually adopts the broken rock technique of laser to tunnel the in-process.
In order to realize the purpose, the utility model discloses a technical scheme is: an experimental device for simulating laser tunneling of underground rock comprises a rock stress simulation device and a laser tunneling device,
the rock stress simulation device comprises an experiment platform, a left baffle, a right baffle, a top beam plate, a left stress bearing plate, a right stress bearing plate and a top stress bearing plate, wherein the left baffle and the right baffle are respectively and vertically fixed at two sides of the experiment platform; the left stress bearing plate is connected with the left baffle through a plurality of stress loading oil cylinders and is parallel to the left baffle; the right stress bearing plate is connected with the right baffle plate through a plurality of stress loading oil cylinders and is parallel to the right baffle plate; the top stress bearing plate is arranged in parallel right above the experiment platform between the left stress bearing plate and the right stress bearing plate and is connected with the lower part of the top beam plate through a plurality of stress loading oil cylinders; the left stress bearing plate, the right stress bearing plate, the top stress bearing plate and the experiment platform enclose a simulated rock placing space; a stress sensor is arranged at the joint of each stress loading oil cylinder, which is connected with the left stress bearing plate, the right stress bearing plate and the top stress bearing plate;
the laser tunneling device comprises a laser excitation device, a propeller, a transverse moving and lifting device, a tunneling head and a vacuum slag suction machine;
the tunneling head comprises a rotating mechanism, a laser head, an electric shock hammer, a slag suction head and a camera, the rotating mechanism comprises a fixed shaft and a rotating disc, the rotating disc is arranged on the fixed shaft and can rotate relative to the fixed shaft, the electric shock hammer, the slag suction head and the camera are arranged at one end of the fixed shaft, the laser head is arranged on the rotating disc, and the orientation of the laser head is the same as that of the camera; the laser head is connected with the laser excitation device through a line, and the slag suction head is connected with the vacuum slag suction machine through a pipeline; the camera, each stress loading oil cylinder and each stress sensor are all connected with the computer;
the propeller is arranged on the transverse moving and lifting device and comprises a first-stage propulsion outer frame, a second-stage propulsion outer frame, a third-stage propulsion outer frame, a fourth-stage propulsion outer frame, a first-stage driving device, a second-stage driving device, a third-stage driving device, a tension wire and a winding machine, wherein the first-stage propulsion outer frame, the second-stage propulsion outer frame, the third-stage propulsion outer frame and the fourth-stage propulsion outer frame are sequentially nested from inside to outside, the extending end of the first-stage propulsion outer frame is connected with the other end of the fixed shaft, the first-stage driving device, the second-stage driving device and the third-stage driving device are respectively arranged in the first-stage propulsion; the primary driving device comprises a movable pulley I and a spring fixing seat I, the movable pulley I is arranged at one end of the spring fixing seat I, the other end of the spring fixing seat I is fixedly connected with the inner wall of the primary propelling outer frame, the secondary driving device comprises a directional pulley I, a movable pulley II and a spring fixing seat II, the movable pulley II is arranged at one end of the spring fixing seat II, the other end of the spring fixing seat II is fixedly connected with the inner wall of the secondary propelling outer frame, the directional pulley I is arranged on the inner wall of the secondary propelling outer frame, the tertiary driving device comprises a directional pulley II, a directional pulley III, a movable pulley III and a spring fixing seat III, the movable pulley III is arranged at one end of the spring fixing seat III, the other end of the spring fixing seat III is fixedly connected with the inner wall of the tertiary propelling outer frame, the directional pulley II and the directional pulley III are, the other end of the tension line sequentially passes through a movable pulley I, a directional pulley I, a movable pulley II, a directional pulley III and a movable pulley III and then is wound on a winding machine;
the laser excitation device is provided with a starting key and a gear adjusting key.
Further, the top stress bearing plate comprises a primary bearing plate and a secondary bearing plate, a groove is formed in the side portion of the primary bearing plate, and the secondary bearing plate is arranged in the groove and can extend out of the groove. The structure can adapt to rock bodies with different widths, and the secondary bearing plate extends out of the groove of the primary bearing plate if top stress loading is required to be carried out on the wider rock body, so that stress loading on the rock body is realized; if top stress loading needs to be carried out on the narrower rock body, the secondary bearing plate is retracted into the groove, and therefore stress loading on the rock body is achieved.
Compared with the prior art, the utility model adopts the mode of combining the rock stress simulator and the laser tunneling device, selects the rock body with the same property as the underground rock stratum to be simulated, then places the rock body in the rock stress simulator, applies stress to the rock body through the rock stress simulator, and simulates the actual stress condition of the underground rock stratum; and then, simulating tunneling work of the rock body through the laser tunneling device, transmitting the detected stress value to the computer by each stress sensor in real time in the whole tunneling process, finally obtaining the stress distribution and the change condition of the rock body in the tunneling process by the computer according to the stress change data detected by each stress sensor, and determining a required supporting scheme by a worker according to the obtained stress distribution and the change condition so as to effectively ensure the safety in the tunneling process. Therefore, the utility model can not only simulate the stress condition of the underground surrounding rock, but also monitor the stress distribution and change condition of the underground surrounding rock in the laser rock breaking process in real time, and finally provide data support for the support work in the tunneling process by actually adopting the laser rock breaking technology; in addition the utility model discloses do not have indoor environmental pollution, compare in mechanical tunnelling, artifical excavation do not have noise pollution, dust pollution, be an indoor tunnelling experimental apparatus of green, environment-friendly type.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the structure of the tunneling head and the propeller of the present invention;
FIG. 3 is a left side view of FIG. 2;
fig. 4 is a schematic structural diagram of a laser excitation device according to the present invention;
FIG. 5 is a schematic structural view of a vacuum ballast suction machine according to the present invention;
fig. 6 is an internal perspective view of the propeller of the present invention;
fig. 7 is a schematic diagram of a tunneling process according to an embodiment of the present invention.
In the figure: 1. stress loading oil cylinder, 2, laser excitation device, 3, vacuum slag suction machine, 4, propeller, 5, tunneling head, 6, left baffle, 7, right baffle, 8, left stress bearing plate, 9, right stress bearing plate, 10, top beam plate, 11, top stress bearing plate, 12, secondary bearing plate, 21, start key, 22, gear adjusting key, 41, primary driving device, 42, secondary driving device, 43, tertiary driving device, 44, directional pulley II, 45, winding machine, 46, primary propulsion frame, 51, laser head, 52, wheel rotation mechanism, 53, electric shock hammer, 54, slag suction head, 55 and camera.
Detailed Description
The present invention will be further explained below.
Example (b):
as shown in fig. 1 to 6, an experimental device for simulating underground rock laser tunneling comprises a rock stress simulation device and a laser tunneling device,
the rock stress simulation device comprises an experiment platform, a left baffle 6, a right baffle 7, a top beam plate 10, a left stress bearing plate 8, a right stress bearing plate 9 and a top stress bearing plate 11, wherein the left baffle 6 and the right baffle 7 are respectively and vertically fixed on two sides of the experiment platform, two ends of the top beam plate 10 are respectively and fixedly connected with the top of the left baffle 6 and the top of the right baffle 7, the left stress bearing plate 8 and the right stress bearing plate 9 are placed on the experiment platform between the left baffle 6 and the right baffle 7, and the bottom of the left stress bearing plate 8, the bottom of the right stress bearing plate 9 and the surface of the experiment platform are smooth surfaces; the left stress bearing plate 8 is connected with the left baffle 6 through the stress loading oil cylinders 1, and the left stress bearing plate 8 is parallel to the left baffle 6; the right stress bearing plate 9 is connected with the right baffle 7 through the stress loading oil cylinders 1, and the right stress bearing plate 9 is parallel to the right baffle 7; the top stress bearing plate 11 is arranged in parallel right above the experiment platform between the left stress bearing plate 8 and the right stress bearing plate 9 and is connected with the lower part of the top beam plate 10 through a plurality of stress loading oil cylinders 11; the left stress bearing plate 8, the right stress bearing plate 9, the top stress bearing plate 11 and the experiment platform enclose a simulated rock placing space; a stress sensor is arranged at the joint of each stress loading oil cylinder 1, which is respectively connected with the left stress bearing plate 8, the right stress bearing plate 9 and the top stress bearing plate 11;
the laser tunneling device comprises a laser excitation device 2, a propeller 4, a transverse moving and lifting device, a tunneling head 5 and a vacuum slag suction machine 3;
the tunneling head 5 comprises a rotating mechanism 52, a laser head 51, an electric shock hammer 53, a slag suction head 54 and a camera 55, the rotating mechanism 52 comprises a fixed shaft and a rotating disc, the rotating disc is arranged on the fixed shaft and can rotate relative to the fixed shaft, the electric shock hammer 53, the slag suction head 54 and the camera 55 are arranged at one end of the fixed shaft, the laser head 51 is arranged on the rotating disc, and the orientation of the laser head 51 is the same as that of the camera 55; the laser head 51 is connected with the laser excitation device 2 through a line, and the slag suction head 54 is connected with the vacuum slag suction machine 3 through a pipeline; the camera 55, each stress loading oil cylinder 1 and each stress sensor are all connected with a computer;
the propeller 4 is arranged on the transverse moving and lifting device, the propeller 4 comprises a first-stage propulsion outer frame 46, a second-stage propulsion outer frame, a third-stage propulsion outer frame, a fourth-stage propulsion outer frame, a first-stage driving device 41, a second-stage driving device 42, a third-stage driving device 43, a tension line and a coiler 45, the first-stage propulsion outer frame 46, the second-stage propulsion outer frame, the third-stage propulsion outer frame and the fourth-stage propulsion outer frame are sequentially nested from inside to outside, the extending end of the first-stage propulsion outer frame 46 is connected with the other end of the fixed shaft, the first-stage driving device 41, the second-stage driving device 42 and the third-stage driving device 43 are respectively arranged in the first-stage propulsion outer frame; the primary driving device 41 comprises a movable pulley I and a spring fixing seat I, the movable pulley I is arranged at one end of the spring fixing seat I, the other end of the spring fixing seat I is fixedly connected with the inner wall of a primary propelling outer frame 46, the secondary driving device comprises a directional pulley I, a movable pulley II and a spring fixing seat II, the movable pulley II is arranged at one end of the spring fixing seat II, the other end of the spring fixing seat II is fixedly connected with the inner wall of a secondary propelling outer frame, the directional pulley I is arranged on the inner wall of the secondary propelling outer frame, the tertiary driving device comprises a directional pulley II 44, a directional pulley III, a movable pulley III and a spring fixing seat III, the movable pulley III is arranged at one end of the spring fixing seat III, the other end of the spring fixing seat III is fixedly connected with the inner wall of the tertiary propelling outer frame, the directional pulley II 44 and the directional pulley III are, the other end of the tension line passes through a movable pulley I, a directional pulley I, a movable pulley II, a directional pulley III and a movable pulley III in sequence and then is wound on a winding machine 45;
the laser exciter 2 is provided with a start key 21 and a gear adjustment key 22.
The laser excitation device 2, the transverse moving and lifting device, the tunneling head 5 and the vacuum ballast suction machine 3 are all existing equipment.
The top stress bearing plate 11 comprises a primary bearing plate and a secondary bearing plate 12, a groove is formed in the side of the primary bearing plate, and the secondary bearing plate 12 is arranged in the groove and can extend out of the groove. The structure can adapt to rock bodies with different widths, and when top stress loading is required to be carried out on a wider rock body, the secondary bearing plate 12 extends out of the groove of the primary bearing plate, so that stress loading on the rock body is realized; when top stress loading needs to be carried out on the narrower rock body, the secondary bearing plate 12 is retracted into the groove, so that stress loading on the rock body is realized.
As shown in fig. 7, the experimental method of the present invention comprises the following specific steps:
the method comprises the following steps: determining the rock properties of the underground rock stratum to be simulated, selecting rock bodies with the same properties to be placed in the simulated rock placing space, and enabling the left stress bearing plate 8, the right stress bearing plate 9 and the top stress bearing plate 11 to be in contact with the left part, the right part and the top of the rock bodies respectively;
step two: according to the detected stress distribution condition of the underground rock stratum, controlling each stress loading oil cylinder 1 to respectively apply stress loading to a left stress bearing plate 8, a right stress bearing plate 9 and a top stress bearing plate 11 through a computer, and further applying simulated stress loading to a rock body by the left stress bearing plate 8, the right stress bearing plate 9 and the top stress bearing plate 11; the stress sensors on the stress loading oil cylinders 1 transmit the detected pressure values to the computer in real time, and the computer controls the stress loading oil cylinders 1 to keep the respective stress loading values when the required simulated stress loading is achieved, so that the simulation of the stress distribution condition of the underground rock stratum is completed;
step three: the thruster 4 is completely retracted, at the moment, the wire winder 45 enables the tension wire to be at the maximum tension value, the first-stage propulsion outer frame 46 is positioned in the second-stage propulsion outer frame, the second-stage propulsion outer frame is positioned in the third-stage propulsion outer frame, the third-stage propulsion outer frame is positioned in the fourth-stage propulsion outer frame, and the spring fixing seat I, the spring fixing seat II and the spring fixing seat III are all at the maximum compression amount; setting a starting point A on a rock body and setting the cross section shape of a tunneling tunnel to be an arch formed by connecting ABCD, controlling the lifting of the transverse moving and lifting device and the rotation of the transverse moving and rotating disc to enable the tunneling head 5 to be close to the rock body, observing the moving condition of the tunneling head 5 through a camera 55 to enable a laser head 51 to be aligned with the starting point A, and finishing the alignment process of the tunneling head 5;
step four: starting the laser excitation device 2 through the starting key 21, controlling the gear adjusting key 22 to adjust the intensity of laser according to the intensity of the rock body, and enabling the laser to reach the starting point A from the laser head 54 to crack the rock at the starting point A; then, according to the section shape of the tunneling tunnel, firstly, the rotation of the rotary disk is adjusted, so that the laser head 51 moves at a constant speed from the starting point A along the AB arc section, and the rotary disk stops working after aligning to the point B; controlling the transverse moving and lifting device to descend to enable the laser head 51 to move at a constant speed along the straight line segment of the BD, and stopping the transverse moving and lifting device from descending after aligning with the D point; controlling the transverse movement and the transverse movement of the lifting device to enable the laser head 51 to move at a constant speed along the DC straight line segment, and stopping the transverse movement and the transverse movement of the lifting device after aligning to the point C; finally, controlling the transverse moving and lifting device to ascend, enabling the laser head 51 to move at a constant speed along the CA straight line segment, aligning the laser head with the starting point A again, stopping the transverse moving and lifting device from ascending, and completing the fracturing process of the section shape of the primary tunneling tunnel; then, continuously enabling the laser head 51 to move at a constant speed along the contour of the arch ABCD, and stopping the laser excitation device 2 from generating laser after circulating for multiple times; starting the electric shock hammer 53 to shock the rock body, so that the rock in the arch ABCD profile falls off from the rock body, starting the vacuum mucking machine 3, sucking the fallen rock into the vacuum mucking machine 3 through the mucking head 54 through a pipeline for subsequent analysis treatment of the fallen rock; at the moment, the tunneling work of the rock body is completed for one time;
step five: controlling the wire coiling machine 45 to release partial length tension lines, wherein at the moment, because the tension values of the tension lines are smaller than the spring strain forces of the spring fixing seats I, the spring fixing seats II and the spring fixing seats III, the spring fixing seats are partially extended, so that the primary propulsion outer frame 46, the secondary propulsion outer frame and the tertiary propulsion outer frame are driven to extend out towards the tunneling direction, and the tunneling head is close to a rock body completing one-time tunneling; repeating the step four once, and completing the tunneling work of the rock body once again;
step six: repeating the step five for multiple times until the tunneling work of the whole tunnel is completed;
step seven: in the whole tunneling process, each stress sensor transmits the detected stress value to the computer in real time, and finally the computer obtains the stress distribution and the change condition of the rock body in the tunneling process according to the stress change data detected by each stress sensor.
Claims (2)
1. An experimental device for simulating underground rock laser tunneling is characterized by comprising a rock stress simulation device and a laser tunneling device,
the rock stress simulation device comprises an experiment platform, a left baffle, a right baffle, a top beam plate, a left stress bearing plate, a right stress bearing plate and a top stress bearing plate, wherein the left baffle and the right baffle are respectively and vertically fixed at two sides of the experiment platform; the left stress bearing plate is connected with the left baffle through a plurality of stress loading oil cylinders and is parallel to the left baffle; the right stress bearing plate is connected with the right baffle plate through a plurality of stress loading oil cylinders and is parallel to the right baffle plate; the top stress bearing plate is arranged in parallel right above the experiment platform between the left stress bearing plate and the right stress bearing plate and is connected with the lower part of the top beam plate through a plurality of stress loading oil cylinders; the left stress bearing plate, the right stress bearing plate, the top stress bearing plate and the experiment platform enclose a simulated rock placing space; a stress sensor is arranged at the joint of each stress loading oil cylinder, which is connected with the left stress bearing plate, the right stress bearing plate and the top stress bearing plate;
the laser tunneling device comprises a laser excitation device, a propeller, a transverse moving and lifting device, a tunneling head and a vacuum slag suction machine;
the tunneling head comprises a rotating mechanism, a laser head, an electric shock hammer, a slag suction head and a camera, the rotating mechanism comprises a fixed shaft and a rotating disc, the rotating disc is arranged on the fixed shaft and can rotate relative to the fixed shaft, the electric shock hammer, the slag suction head and the camera are arranged at one end of the fixed shaft, the laser head is arranged on the rotating disc, and the orientation of the laser head is the same as that of the camera; the laser head is connected with the laser excitation device through a line, and the slag suction head is connected with the vacuum slag suction machine through a pipeline; the camera, each stress loading oil cylinder and each stress sensor are all connected with the computer;
the propeller is arranged on the transverse moving and lifting device and comprises a first-stage propulsion outer frame, a second-stage propulsion outer frame, a third-stage propulsion outer frame, a fourth-stage propulsion outer frame, a first-stage driving device, a second-stage driving device, a third-stage driving device, a tension wire and a winding machine, wherein the first-stage propulsion outer frame, the second-stage propulsion outer frame, the third-stage propulsion outer frame and the fourth-stage propulsion outer frame are sequentially nested from inside to outside, the extending end of the first-stage propulsion outer frame is connected with the other end of the fixed shaft, the first-stage driving device, the second-stage driving device and the third-stage driving device are respectively arranged in the first-stage propulsion; the primary driving device comprises a movable pulley I and a spring fixing seat I, the movable pulley I is arranged at one end of the spring fixing seat I, the other end of the spring fixing seat I is fixedly connected with the inner wall of the primary propelling outer frame, the secondary driving device comprises a directional pulley I, a movable pulley II and a spring fixing seat II, the movable pulley II is arranged at one end of the spring fixing seat II, the other end of the spring fixing seat II is fixedly connected with the inner wall of the secondary propelling outer frame, the directional pulley I is arranged on the inner wall of the secondary propelling outer frame, the tertiary driving device comprises a directional pulley II, a directional pulley III, a movable pulley III and a spring fixing seat III, the movable pulley III is arranged at one end of the spring fixing seat III, the other end of the spring fixing seat III is fixedly connected with the inner wall of the tertiary propelling outer frame, the directional pulley II and the directional pulley III are, the other end of the tension line sequentially passes through a movable pulley I, a directional pulley I, a movable pulley II, a directional pulley III and a movable pulley III and then is wound on a winding machine;
the laser excitation device is provided with a starting key and a gear adjusting key.
2. The experimental device for simulating laser excavation of underground rocks according to claim 1, wherein the top stress bearing plate comprises a primary bearing plate and a secondary bearing plate, a groove is formed in the side of the primary bearing plate, and the secondary bearing plate is arranged in the groove and can extend out of the groove.
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| CN202020082008.8U CN211453618U (en) | 2020-01-15 | 2020-01-15 | Experimental device for be used for simulating underground rock laser tunnelling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060676A (en) * | 2020-01-15 | 2020-04-24 | 湖南科技大学 | Experimental device and method for simulating laser tunneling of underground rock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060676A (en) * | 2020-01-15 | 2020-04-24 | 湖南科技大学 | Experimental device and method for simulating laser tunneling of underground rock |
| CN111060676B (en) * | 2020-01-15 | 2024-09-24 | 湖南科技大学 | Experimental device and method for simulating underground rock laser tunneling |
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