CN210269423U - Fault dislocation test device for simulating multi-angle crossing fault of deep-buried tunnel - Google Patents
Fault dislocation test device for simulating multi-angle crossing fault of deep-buried tunnel Download PDFInfo
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- CN210269423U CN210269423U CN201921282459.XU CN201921282459U CN210269423U CN 210269423 U CN210269423 U CN 210269423U CN 201921282459 U CN201921282459 U CN 201921282459U CN 210269423 U CN210269423 U CN 210269423U
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Abstract
The utility model provides a simulation buries fault slippage test device that tunnel multi-angle passed through fault deeply relates to tunnel mechanics analysis analogue test device technical field, and it is fixed with the inclination guide rail including the box that is provided with the observation window in the lower part of box, sliding connection has the soil cabin side wall on the inclination guide rail, and the top of inclination guide rail is fixed with the soil cabin bottom plate. A first vertical guide rail is fixed on the soil cabin side wall, a first arc-shaped guide rail is vertically and slidably connected onto the first vertical guide rail, a second vertical guide rail is fixed onto the box body, a second arc-shaped guide rail is vertically and slidably connected onto the second vertical guide rail, and the second arc-shaped guide rail and the first arc-shaped guide rail are arranged oppositely at intervals. Sleeve pipe supports are respectively connected to the first arc-shaped guide rail and the second arc-shaped guide rail in a sliding mode. The top ends of the first vertical guide rail and the second vertical guide rail are tiled and fixed with air bags capable of being inflated and deflated. The problem of test device among the prior art can't simulate two factors of big buried depth, multi-angle crossing fault to the influence of tunnel mechanics response is solved.
Description
Technical Field
The utility model relates to a tunnel mechanics analysis analogue test device technical field especially relates to a simulation buries fault dislocation test device that tunnel multi-angle passed through fault deeply.
Background
The seismic active zone in China is widely distributed. With the mass construction of the traffic tunnel engineering in China, the traffic tunnel passes through the active fault and is difficult to avoid because a large number of faults are not yet discovered and the span of the tunnel structure is long. Past post-earthquake observation shows that tunnel damage caused by fault dislocation is more serious than damage caused by vibration. Under the action of fault dislocation, the tunnel is easy to generate disasters such as shearing damage, distortion deformation, water inrush and mud inrush. Because the fault dislocation generation is accidental, the fault dislocation generation cannot be researched by a field test means. In addition, the mechanical response of the tunnel structure under the fault dislocation action is researched by adopting a numerical simulation means, and a large amount of test data verification is also required. Therefore, it is necessary to research the mechanical characteristics of the tunnel under the action of fault dislocation through an indoor model test.
Different traffic tunnels have different tunnel burial depths and cross fault planes through different angles. The tunnel burial depth and the crossing angle are important influence factors of the mechanical response of the tunnel under the action of fault dislocation. However, the existing fault dislocation test device in China cannot realize the characteristics of large burial depth, multi-angle crossing and the like. Therefore, the design of the test device which can simulate large burial depth and realize multi-angle fault crossing has great significance for researching the mechanical mechanism of the tunnel under the fault dislocation action. In the field, the large burial depth means that the depth of the tunnel is 2-3 times larger than the diameter of the tunnel.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem among the prior art, the utility model provides a simulation buries tunnel multi-angle and passes through fault dislocation test device of fault deeply, it has solved the problem that test device among the prior art can't simulate different depths of burial, multi-angle and pass through the influence of two factors of fault to the tunnel mechanics response.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
the utility model provides a simulation deeply buried tunnel multi-angle passes through fault slippage test device of fault, its is fixed with the inclination guide rail including the box that is provided with the observation window in the lower part in the box, sliding connection has the soil cabin side wall on the inclination guide rail, and the top of inclination guide rail is fixed with the soil cabin bottom plate. A first vertical guide rail is fixed on the soil cabin side wall, a first arc-shaped guide rail is vertically and slidably connected onto the first vertical guide rail, a second vertical guide rail is fixed onto the box body, a second arc-shaped guide rail is vertically and slidably connected onto the second vertical guide rail, and the second arc-shaped guide rail and the first arc-shaped guide rail are arranged oppositely at intervals. Sleeve pipe supports are respectively connected to the first arc-shaped guide rail and the second arc-shaped guide rail in a sliding mode. The top ends of the first vertical guide rail and the second vertical guide rail are tiled and fixed with air bags capable of being inflated and deflated.
Furthermore, the top surface of the side wall of the soil cabin is flush with the top surface of the air bag, and the air bag is separated from the side wall of the soil cabin through an L-shaped baffle. The soil cabin side wall is separated from the air bag through the L-shaped baffle plate, so that the air bag is prevented from being damaged in the sliding process of the soil cabin side wall along the inclination angle guide rail.
Furthermore, the top end of the air bag is fixed with an air charging and discharging joint which penetrates through a top plate of the box body and extends outwards. The inflation and deflation joint extending to the outer side of the box body is convenient for connecting an inflation and deflation device so as to accurately control the inflation and deflation amount in the air bag and further accurately simulate the buried depth of the tunnel.
Furthermore, the bottom end of the side wall of the soil cabin is supported on the box body through a sliding driving device. The sliding driving device drives the side wall of the soil cabin to move, so that the stability and the moving precision during moving can be improved.
Furthermore, one side of the side wall of the soil cabin, which is far away from the first arc-shaped guide rail, is integrally formed with inclined saw teeth, the inclined saw teeth are inserted into inclined saw grooves correspondingly arranged on the box body, and the inclined saw teeth are parallel to the inclined angle guide rail. The soil cabin side wall prevents the top end of the soil cabin side wall from inclining in the moving process through the splicing and matching of the inclined saw teeth and the inclined saw grooves, and the accuracy of test data is influenced.
Furthermore, the sliding driving device is a plurality of jacks uniformly arranged between the side wall of the soil cabin and the box body. The plurality of jacks which are uniformly arranged simultaneously act on the side wall of the soil cabin, so that the moving stability of the side wall of the soil cabin is improved; the jack is the standard component that the technique is mature, has a lot of types and specifications, is convenient for carry out the lectotype according to test device's actual demand, improves experimental control accuracy.
Furthermore, the first vertical guide rail has the same structure as the second vertical guide rail, and the first arc-shaped guide rail has the same structure as the second arc-shaped guide rail, so that the processing and the manufacturing are convenient, and the convenience of operation is improved.
Further, first arc guide rail or second arc guide rail are fixed as an organic whole including last arc piece and the lower arc piece that is vertical parallel arrangement, go up arc piece and lower arc piece through evenly distributed's many pillars, go up the inboard of arc piece and lower arc piece and all be provided with the arc recess. Through two arc bosss grafting that correspond on two spaced arc recesses and the sleeve support, play spacing guide's effect to the sleeve support, make the sleeve support can only remove along the arc recess, improve experimental accuracy.
Furthermore, the outer side of the first arc-shaped guide rail or the outer side of the second arc-shaped guide rail are vertically provided with rectangular bosses, the number of which is not less than two, and the rectangular bosses are correspondingly arranged on the first vertical guide rail or the second vertical guide rail in a sliding insertion mode through rectangular grooves. The rectangular bosses not lower than two in quantity are matched with the rectangular grooves to realize sliding connection of the arc-shaped guide rails and the corresponding vertical guide rails, the rectangular bosses are arranged at intervals, a limiting effect can be achieved, the arc-shaped guide rails can only vertically move along the vertical guide rails corresponding to the rectangular bosses, and the accuracy of tests is improved.
Further, a camera support is fixed on the outer side of the box body and is arranged close to the observation window. A camera can be installed and fixed on the camera support, and the change process of the soil fault in the whole test process can be continuously shot and recorded through the camera.
The utility model has the advantages that: the side plates of the box body, the bottom plate of the soil cabin, the side walls of the soil cabin and the air bags are encircled to form the soil cabin for containing a test soil body and placing a tunnel model, the sleeve pipe supports are used for fixing two ends of the tunnel model, the upper covering load of the soil body is controlled by controlling the air charging and discharging in the air bags, and the movement of the sleeve pipe supports along the vertical guide rail is used for simulating the tunnel stress in a large burial depth state; the soil cabin side wall is driven by the sliding driving device to slide along the inclined angle guide rail to the inclined upper side or the inclined lower side so as to simulate a tunnel reverse fault or a tunnel normal fault; the sleeve pipe support can slide in an arc shape within a certain angle range along the first arc-shaped guide rail or the second arc-shaped guide rail at the corresponding position, so that the tunnel multi-angle crossing fault is simulated; and then can simulate the tunnel under big buried depth state, the mechanical response data when the multi-angle passes through normal fault or reverse fault through this test device, improve numerical simulation analysis's accuracy.
Drawings
FIG. 1 is a perspective view of a fault dislocation test device for simulating multi-angle fault crossing of a deep-buried tunnel.
FIG. 2 is a front view of the inside of a fault dislocation test device for simulating multi-angle fault crossing of a deep-buried tunnel.
Fig. 3 is a sectional view taken along a-a in fig. 2.
Fig. 4 is an exploded view of the first arcuate rail and sleeve support assembly.
Wherein, 1, a box body; 101. an observation window; 102. a miter saw slot; 2. an inclination guide rail; 21. folding the plate; 3. a soil chamber side wall; 31. oblique saw teeth; 32. a triangular base; 33. erecting a wall; 4. a first vertical guide rail; 5. a first arcuate guide rail; 51. an upper arc-shaped block; 52. a lower arc-shaped block; 53. a pillar; 54. an arc-shaped groove; 55. a rectangular boss; 6. a second vertical guide rail; 7. a second arcuate guide rail; 8. a sleeve support; 9. an air bag; 91. an air inflation and deflation joint; 10. an L-shaped baffle plate; 11. a soil bin floor; 12. a slide driving device; 13. a camera support.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.
As shown in figure 1, the fault dislocation test device for simulating the multi-angle crossing fault of the deep-buried tunnel comprises a box body 1 provided with an observation window 101. Box 1 is the rectangle case that splices into through 6 plates, including front bezel, back plate, left board, right board, roof and bottom plate, left board, right board and bottom plate fixed connection, and front bezel, back plate and roof pass through threaded fastener and can dismantle the connection to the spare part of 1 inside of convenient installation box. The observation window 101 is a rectangular window formed in the front plate, and organic glass is embedded in the rectangular window.
The camera support 13 is fixed on the outer side of the box body 1, the camera support 13 comprises two supports which are in triangular support and fixed on the front plate and camera fixing seats fixed at the cross points of the supports, and the camera fixing seats are used for fixing the digital cameras, so that the lenses of the digital cameras are aligned to soil in the soil cabin and can collect all images of the soil in the soil cabin.
As shown in fig. 1 and 2, an inclined angle guide rail 2 is fixed at the lower part in the box body 1, a soil cabin side wall 3 is connected on the inclined angle guide rail 2 in a sliding way, a soil cabin bottom plate 11 is fixed at the top end of the inclined angle guide rail 2, and the soil cabin bottom plate 11 is parallel to the bottom plate of the box body 1. The soil cabin side wall 3 comprises a triangular base 32 with a triangular section, the top surface of the triangular base 32 is horizontally arranged, a vertical wall 33 is integrally formed on one side of the top surface of the triangular base 32, the right side surface of the triangular base 32 is abutted against the inclined surface of the inclination angle guide rail 2, the left side surface of the triangular base 32 is fixed on the driving end of the sliding driving device 12, and the sliding driving device 12 is fixed on a folded plate 21 parallel to the left side surface. One end of the folded plate 21 is connected with the bottom end of the inclined angle guide rail 2, and the other end is fixed on the left plate of the box body 1. Preferably, the slide driving means 12 is a plurality of jacks uniformly supported on the triangular base 32.
The vertical wall 33 is disposed vertically, i.e., in parallel with the left plate of the cabinet 1. The side of the vertical wall 33 adjacent to the left plate is integrally formed with a miter saw tooth 31, the miter saw tooth 31 is inserted into a miter saw slot 102 correspondingly formed in the left plate of the box body 1, and the miter saw tooth 31 is parallel to the tilt angle guide rail 2, i.e. the tilt angles of the miter saw tooth 31 and the tilt angle guide rail 2 are the same.
A first vertical guide rail 4 is fixed to a side (i.e., a right side) of the vertical wall 33 away from the slanted saw teeth 31, and a bottom end of the first vertical guide rail 4 is inserted into a groove on a top surface of the triangular base 32. The right side of the first vertical guide rail 4 is vertically connected with a first arc-shaped guide rail 5 in a sliding manner. A second vertical guide rail 6 is fixed on the right plate of the box body 1, a second arc-shaped guide rail 7 is vertically and slidably connected onto the second vertical guide rail 6, and the second arc-shaped guide rail 7 and the first arc-shaped guide rail 5 are oppositely arranged at intervals as shown in fig. 3. The first vertical guide rail 4 and the second vertical guide rail 6 have the same structure, and the first arc-shaped guide rail 5 and the second arc-shaped guide rail 7 have the same structure.
The outer side of the first arc-shaped guide rail 5 or the second arc-shaped guide rail 7 is vertically provided with not less than two rectangular bosses 55, in the figure, three rectangular bosses 55 are shown, and are respectively positioned in the middle and two sides of the outer side of the first arc-shaped guide rail 5 or the second arc-shaped guide rail 7. The rectangular boss 55 is inserted into the rectangular groove correspondingly formed on the first vertical guide rail 4 or the second vertical guide rail 6 in a sliding manner.
As shown in fig. 4, the first arc-shaped guide rail 5 or the second arc-shaped guide rail 7 includes an upper arc-shaped block 51 and a lower arc-shaped block 52 which are vertically and parallelly arranged, the upper arc-shaped block 51 and the lower arc-shaped block 52 are fixed into a whole by a plurality of uniformly distributed pillars 53, and arc-shaped grooves 54 are respectively formed on the inner sides of the upper arc-shaped block 51 and the lower arc-shaped block 52. The first arc-shaped guide rail 5 and the second arc-shaped guide rail 7 are respectively connected with a sleeve pipe support 8 in a sliding way. The sleeve pipe support 8 comprises a circular pipe and an arc-shaped connecting block fixed at one end of the circular pipe, an arc-shaped boss which is simultaneously inserted into the arc-shaped groove 54 on the upper arc-shaped block 51 and the lower arc-shaped block 52 is arranged on the outer side of the arc-shaped connecting block, and the circular pipe is used for fixing the end part of the tunnel model.
The top ends of the first vertical guide rail 4 and the second vertical guide rail 6 are flatly paved and fixed with air bags 9 which can be inflated and deflated. The top surface of the side wall 3 of the soil chamber is flush with the top surface of the air bag 9, namely, the top surface of the vertical wall 33 is flush with the top surface of the air bag 9 and is averagely abutted against the top plate of the box body 1. The air bag 9 and the soil cabin side wall 3 are separated by an L-shaped baffle 10, and the end part of the L-shaped baffle 10 is fixed on the rear plate of the box body 1. An inflation and deflation joint 91 is fixed at the top end of the air bag 9 in a sealing way, and the inflation and deflation joint 91 penetrates through the top plate of the box body 1 and extends outwards. The air bag 9 is a rubber air bag, the inflation and deflation connector 91 corresponds to a matched inflation and deflation device, and the inflation and deflation connector 91 is fixed on the air bag 9 by adopting a heat sealing technology.
When the test device is used for a test for simulating the multi-angle crossing of a fault of a deeply buried tunnel, two ends of a tunnel model are respectively fixed on the sleeve pipe supports 8 on the first arc-shaped guide rail 5 and the second arc-shaped guide rail 7. The relative positions of the two sleeve supports 8 in the vertical direction can be adjusted by adjusting the positions of the two sleeve supports 8 on the first arc-shaped guide rail 5 and the second arc-shaped guide rail 7 through adjusting the first vertical guide rail 4 and the second vertical guide rail 6, the relative positions of the two ends of the tunnel model in the horizontal direction can be adjusted, the positions of the two ends of the tunnel model are adjusted according to test requirements, then test soil is filled in a cavity enclosed by the soil cabin bottom plate 11, the front plate, the rear plate, the vertical wall 33 and the right plate, compressed gas is filled in the air bag 9 through the inflating device, the soil is extruded through the pressure generated by the compressed gas, and the pressure in the air bag 9 is matched with the pressure received by an actual tunnel under a certain burial depth. The dislocation process of the normal fault and the reverse fault is simulated by starting the sliding driving device 12 to push or pull the side wall 3 of the soil cabin to move along the inclined angle guide rail 2, and images of the process are collected by a digital camera.
Claims (10)
1. The fault slippage test device for simulating the multi-angle crossing fault of the deep-buried tunnel is characterized by comprising a box body (1) provided with an observation window (101), wherein an inclination guide rail (2) is fixed at the lower part in the box body (1), a soil cabin side wall (3) is connected onto the inclination guide rail (2) in a sliding manner, and a soil cabin bottom plate (11) is fixed at the top end of the inclination guide rail (2);
a first vertical guide rail (4) is fixed on the side wall (3) of the soil cabin, a first arc-shaped guide rail (5) is vertically and slidably connected onto the first vertical guide rail (4), a second vertical guide rail (6) is fixed on the box body (1), a second arc-shaped guide rail (7) is vertically and slidably connected onto the second vertical guide rail (6), and the second arc-shaped guide rail (7) and the first arc-shaped guide rail (5) are oppositely arranged at intervals;
the first arc-shaped guide rail (5) and the second arc-shaped guide rail (7) are respectively connected with a sleeve pipe support (8) in a sliding manner;
the top ends of the first vertical guide rail (4) and the second vertical guide rail (6) are flatly laid and fixed with air bags (9) capable of being inflated and deflated.
2. The fault dislocation test device for simulating the multi-angle crossing fault of the deep-buried tunnel according to claim 1, wherein the top surface of the soil cabin side wall (3) is flush with the top surface of the air bag (9), and the air bag (9) is separated from the soil cabin side wall (3) through an L-shaped baffle (10).
3. The fault dislocation test device for simulating the multi-angle crossing fault of the deep-buried tunnel according to claim 1, wherein an inflation and deflation joint (91) is fixed at the top end of the air bag (9), and the inflation and deflation joint (91) penetrates through the top plate of the box body (1) and extends outwards.
4. The fault dislocation test device for simulating the multi-angle crossing fault of the deep-buried tunnel according to claim 1, wherein the bottom end of the side wall (3) of the soil cabin is supported on the box body (1) through a sliding driving device (12).
5. The fault dislocation test device for simulating the multi-angle crossing fault of the deep-buried tunnel according to claim 1 or 4, wherein one side of the soil cabin side wall (3) far away from the first arc-shaped guide rail (5) is integrally formed with inclined saw teeth (31), the inclined saw teeth (31) are inserted into inclined saw grooves (102) correspondingly arranged on the box body (1), and the inclined saw teeth (31) are parallel to the inclined angle guide rail (2).
6. The fault dislocation test device for simulating the multi-angle crossing fault of the deep-buried tunnel according to claim 4, wherein the sliding driving device (12) is a plurality of jacks uniformly arranged between the side wall (3) of the soil cabin and the box body (1).
7. The fault dislocation test device for simulating the multi-angle crossing fault of the deep-buried tunnel according to claim 1, wherein the first vertical guide rail (4) and the second vertical guide rail (6) have the same structure, and the first arc-shaped guide rail (5) and the second arc-shaped guide rail (7) have the same structure.
8. The fault dislocation test device for simulating the multi-angle crossing fault of the deep-buried tunnel according to claim 1, wherein the first arc-shaped guide rail (5) or the second arc-shaped guide rail (7) comprises an upper arc-shaped block (51) and a lower arc-shaped block (52) which are vertically arranged in parallel, the upper arc-shaped block (51) and the lower arc-shaped block (52) are fixed into a whole through a plurality of uniformly distributed supporting columns (53), and arc-shaped grooves (54) are formed in the inner sides of the upper arc-shaped block (51) and the lower arc-shaped block (52).
9. The fault dislocation test device for simulating the multi-angle crossing fault of the deeply buried tunnel according to claim 1 or 8, wherein at least two rectangular bosses (55) are vertically arranged on the outer side of the first arc-shaped guide rail (5) or the second arc-shaped guide rail (7), and the rectangular bosses (55) are in sliding insertion connection with rectangular grooves correspondingly arranged on the first vertical guide rail (4) or the second vertical guide rail (6).
10. The fault dislocation test device for simulating the multi-angle crossing fault of the deep-buried tunnel according to claim 1, wherein a camera support (13) is fixed on the outer side of the box body (1), and the camera support (13) is arranged adjacent to the observation window (101).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921282459.XU CN210269423U (en) | 2019-08-08 | 2019-08-08 | Fault dislocation test device for simulating multi-angle crossing fault of deep-buried tunnel |
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| CN201921282459.XU CN210269423U (en) | 2019-08-08 | 2019-08-08 | Fault dislocation test device for simulating multi-angle crossing fault of deep-buried tunnel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333136A (en) * | 2019-08-08 | 2019-10-15 | 西南交通大学 | A kind of simulation deep tunnel multi-angle passes through the fault movement experimental rig of tomography |
| CN112362479A (en) * | 2021-01-14 | 2021-02-12 | 中国科学院地质与地球物理研究所 | Experimental system and method for simulating influence of fracture stick-slip dislocation on tunnel engineering |
| CN114136793A (en) * | 2021-10-19 | 2022-03-04 | 中国铁路设计集团有限公司 | Experimental method and experimental device for tunnel crossing double fault |
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2019
- 2019-08-08 CN CN201921282459.XU patent/CN210269423U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333136A (en) * | 2019-08-08 | 2019-10-15 | 西南交通大学 | A kind of simulation deep tunnel multi-angle passes through the fault movement experimental rig of tomography |
| CN110333136B (en) * | 2019-08-08 | 2024-03-29 | 西南交通大学 | Fault dislocation test device for simulating multi-angle crossing fault of deep buried tunnel |
| CN112362479A (en) * | 2021-01-14 | 2021-02-12 | 中国科学院地质与地球物理研究所 | Experimental system and method for simulating influence of fracture stick-slip dislocation on tunnel engineering |
| CN112362479B (en) * | 2021-01-14 | 2021-04-02 | 中国科学院地质与地球物理研究所 | Experimental system and method for simulating influence of fracture stick-slip dislocation on tunnel engineering |
| US11085859B1 (en) | 2021-01-14 | 2021-08-10 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Experimental system and method for simulating effect of fault stick-slip displacement on tunnel engineering |
| CN114136793A (en) * | 2021-10-19 | 2022-03-04 | 中国铁路设计集团有限公司 | Experimental method and experimental device for tunnel crossing double fault |
| CN114136793B (en) * | 2021-10-19 | 2024-01-12 | 中国铁路设计集团有限公司 | Experimental method and experimental device for tunnel crossing double faults |
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