CN214224477U - Horizontal tunnel lining structure device for anti-seismic test - Google Patents
Horizontal tunnel lining structure device for anti-seismic test Download PDFInfo
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- CN214224477U CN214224477U CN202120568642.7U CN202120568642U CN214224477U CN 214224477 U CN214224477 U CN 214224477U CN 202120568642 U CN202120568642 U CN 202120568642U CN 214224477 U CN214224477 U CN 214224477U
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Abstract
The utility model relates to a horizontal tunnel lining structure device for anti-seismic test, which comprises a counter-force mechanism, a horseshoe-shaped lining test piece, a lining test piece supporting mechanism, a lining test piece fixing mechanism, a lining test piece loading mechanism and a simulation vibration generating mechanism; the reaction mechanism comprises two reaction walls which are symmetrically arranged, and the tops of the two reaction walls are fixedly connected with a cross beam; the lining test piece supporting mechanism comprises a supporting plate fixed between the bottoms of the two reaction walls, and the lining test piece is fixed on the supporting plate; the simulation vibration generating mechanism comprises first vibration motors arranged on two sides of the lining test piece and second vibration motors arranged above the lining test piece. The utility model discloses all added the vibrations structure in lining cutting test piece level and vertical direction, simulated real vibrations scene to the anti-seismic performance who obtains the lining cutting test piece with the structural failure form, the structural style that adopts horizontal tunnel lining cutting U-shaped accords with the scene that actual tunnel lining participated in work more.
Description
Technical Field
The utility model relates to a tunnel engineering antidetonation test equipment field, concretely relates to horizontal tunnel lining constructional device for antidetonation test.
Background
The Chinese geographic location is just between the two most active seismic zones in the world, the Pacific seismic zone and the Himalayan Mediterranean seismic zone. From ancient times to present, the phenomenon of earthquake disasters occurs in China, and the occurrence frequency is high and the harmfulness is high. Great earthquake in Tang mountain and Wenchuan are the most striking examples, and cause great damage to life safety and property loss of people. During earthquakes, it has been increasingly found that underground works, such as tunnels, are not as strong as imaginable, and that tunnel locations are more severely damaged during earthquakes. Subsequently, people pay attention to the research on the earthquake resistance of underground engineering structures, and with the development of many years, researches on the earthquake-resistant failure mechanism and the occurrence mechanism of tunnels and the like gradually become hot spots. At present, the mode such as numerical simulation, indoor test have been had in research tunnel antidetonation, indoor test has obtained progressive application with its true objective, but among the current indoor test research, it is square test piece of lining concrete or adoption vertical bent beam structure to center on tunnel lining component antidetonation performance research mostly, in real engineering background, tunnel lining often is horizontal state and oval or horseshoe-shaped, and the device that research tunnel lining structure antidetonation was tested now is whole more complicated, be unfavorable for operation and the cost is bigger, it is less to horizontal tunnel lining structure antidetonation test device, so need propose simple and practical, the device of cost in controllable within range, in order to satisfy needs such as scientific research.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a horizontal tunnel lining constructional device for shock-proof test is provided, its simple structure is practical, satisfies horizontal state and be oval or the tunnel lining's of shape of a hoof test demand.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a horizontal tunnel lining structure device for an anti-seismic test comprises a counter-force mechanism, a horseshoe-shaped lining test piece, a lining test piece supporting mechanism, a lining test piece fixing mechanism, a lining test piece loading mechanism and a simulated vibration generating mechanism; the reaction mechanism comprises two reaction walls which are symmetrically arranged, and the tops of the two reaction walls are fixedly connected with a cross beam; the lining test piece supporting mechanism comprises a supporting plate fixed between the bottoms of the two reaction walls, and the lining test piece is fixed on the supporting plate; the lining test piece fixing mechanism comprises a vertical fixing mechanism and a horizontal fixing mechanism which are arranged on the outer side of the lining test piece; lining cutting test piece loading mechanism is including setting up vertical loading mechanism and the horizontal loading mechanism in the lining cutting test piece outside, the mechanism takes place including setting up the first vibrating motor in lining cutting test piece both sides and setting up the second vibrating motor in the lining cutting test piece top, and the output shaft of first vibrating motor and second vibrating motor all laminates with the outer wall of lining cutting test piece, first vibrating motor fixes in the backup pad, and the second vibrating motor is fixed on vertical fixed establishment.
Vertical fixed establishment is including setting up the vertical arc steelframe in lining cutting test piece periphery, the both ends of vertical arc steelframe and the bottom inside wall fixed connection of two counter-force walls, vertical arc steelframe top and crossbeam fixed connection, horizontal fixed establishment is including setting up the horizontal arc steelframe in lining cutting test piece periphery, the both ends of horizontal arc steelframe and the bottom inside wall fixed connection of two counter-force walls, horizontal arc steelframe is fixed in the backup pad, the second vibrating motor is fixed on vertical arc steelframe.
The second vibrating motor is fixed on the vertical arc-shaped steel frame through the motor mounting frame, the second vibrating motor is fixed on the motor mounting frame through bolts, and the motor mounting frame is fixed on the vertical arc-shaped steel frame through bolts.
The vertical arc-shaped steel frame and the horizontal arc-shaped steel frame are both stainless steel frames.
The vertical arc-shaped steel frame is formed by sequentially splicing arc-shaped plates, and the adjacent arc-shaped plates are fixedly connected through bolts.
The vertical loading mechanism comprises first hydraulic cylinders which are uniformly distributed on the inner side wall of the vertical arc-shaped steel frame and stretch out and draw back along the radial direction, first pressure springs are fixed at the piston rod ends of the first hydraulic cylinders, the first pressure springs are connected with the outer side wall of the lining test piece, the horizontal loading mechanism comprises second hydraulic cylinders which are uniformly distributed on the inner side wall of the horizontal arc-shaped steel frame and stretch out and draw back along the radial direction, second pressure springs are fixed at the piston rod ends of the second hydraulic cylinders, and the second pressure springs are connected with the outer side wall of the lining test piece.
And the piston rod end of the first hydraulic cylinder and the piston rod end of the second hydraulic cylinder are both fixed with loading heads, and the first pressure spring and the second pressure spring are respectively fixed on the corresponding loading heads.
And one ends of the first pressure spring and the second pressure spring, which are connected with the lining test piece, are respectively fixed with a base plate, and the base plates are attached to the outer side wall of the lining test piece.
The output shafts of the first vibration motor and the second vibration motor are connected with a transmission shaft through a coupler, the end parts of the transmission shaft are fixed with annular vibration blocks, and the annular vibration blocks are attached to the outer wall of the lining test piece.
The inner side and the outer side of the arch foot of the lining test piece are both provided with limiting blocks, and the limiting blocks are fixed on the supporting plate.
The utility model discloses all added the vibrations structure in lining cutting test piece level and vertical direction, simulated true vibrations scene to the anti-seismic performance that obtains the lining cutting test piece can show and the configuration is destroyed to the structure form that adopts horizontal tunnel lining cutting U-shaped accords with the scene that actual tunnel lining participated in work more, and overall structure is simple, and convenient operation saves the cost.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, a horizontal tunnel lining structure device for an earthquake-proof test comprises a counterforce mechanism, a horseshoe-shaped lining test piece 17, a lining test piece supporting mechanism, a lining test piece fixing mechanism, a lining test piece loading mechanism and a simulated vibration generating mechanism. The reaction mechanism comprises two reaction walls 1 which are symmetrically arranged, the top parts of the two reaction walls 1 are fixedly connected with a cross beam 2, and the reaction walls are required to be used as supporting structures in an anti-seismic performance test of a large-scale member or a structural model so as to solve the problem of horizontal reverse thrust of a lining member in the anti-seismic test. The lining test piece supporting mechanism comprises a supporting plate 16 fixed between the bottoms of the two reaction walls, and a lining test piece 17 is fixed on the supporting plate 16. The lining test piece fixing mechanism comprises a vertical fixing mechanism and a horizontal fixing mechanism which are arranged on the outer side of the lining test piece. The lining test piece loading mechanism comprises a vertical loading mechanism and a horizontal loading mechanism which are arranged on the outer side of the lining test piece. The simulation vibration generating mechanism comprises a first vibration motor 10 arranged on two sides of a lining test piece and a second vibration motor 18 arranged above the lining test piece, output shafts of the first vibration motor 10 and the second vibration motor 18 are attached to the outer wall of the lining test piece, the first vibration motor 10 is fixed on a supporting plate 16, and the second vibration motor 18 is fixed on a vertical fixing mechanism.
Vertical fixed establishment is including setting up the vertical arc steelframe 3 in lining cutting test piece periphery, the both ends of vertical arc steelframe 3 and the bottom inside wall fixed connection of two counterforce walls 1, 3 tops of vertical arc steelframe and 2 fixed connection of crossbeam, horizontal fixed establishment is including setting up the horizontal arc steelframe 20 in lining cutting test piece periphery, the both ends of horizontal arc steelframe 20 and the bottom inside wall fixed connection of two counterforce walls, horizontal arc steelframe 20 is fixed in backup pad 16, second vibrating motor 18 is fixed on vertical arc steelframe 3.
Second vibrating motor 18 passes through motor mounting bracket 15 to be fixed on vertical arc steelframe 3, and second vibrating motor 18 passes through the bolt fastening on motor mounting bracket 15, and motor mounting bracket 15 passes through the bolt fastening on vertical arc steelframe 3, convenient to detach and transportation like this.
The vertical arc-shaped steel frame and the horizontal arc-shaped steel frame are stainless steel frames, the stainless steel frames are mainly made of stainless steel, durability tests can be conducted to prevent corrosion of the stainless steel frames, for example, performance of lining test pieces in simulated salt environments changes, chloride ions can corrode common reinforcing steel bars, and the stainless steel is superior in performance in resisting corrosion of chloride salts.
Vertical arc steelframe is formed by the arc concatenation in proper order, and adjacent arc passes through bolt fixed connection, convenient to detach and transportation.
The vertical loading mechanism comprises first hydraulic cylinders 6 which are uniformly distributed on the inner side wall of a vertical arc-shaped steel frame and stretch out and draw back along the radial direction, piston rod ends of the first hydraulic cylinders 6 are respectively fixed with first pressure springs 8, the first pressure springs 8 are connected with the outer side wall of a lining test piece, the horizontal loading mechanism comprises second hydraulic cylinders 4 which are uniformly distributed on the inner side wall of a horizontal arc-shaped steel frame and stretch out and draw back along the radial direction, piston rod ends of the second hydraulic cylinders 4 are respectively fixed with second pressure springs 5, the second pressure springs 5 are connected with the outer side wall of a lining test piece 17, and the loading force on the lining test piece 17 can be adjusted by adjusting the first hydraulic cylinders 6 and the second hydraulic cylinders 4.
And the piston rod end of the first hydraulic cylinder and the piston rod end of the second hydraulic cylinder are both fixed with loading heads 7, and the first pressure spring and the second pressure spring are respectively fixed on the corresponding loading heads 7.
One end that first pressure spring, second pressure spring and lining cutting test piece meet all is fixed with backing plate 9, and the backing plate is laminated with the lateral wall of lining cutting test piece, and the backing plate can prevent stress concentration.
The inboard and the outside of the hunch foot of lining cutting test piece all are equipped with stopper 19, and stopper 19 is fixed in the backup pad, prevents that lining cutting test piece from sliding in the horizontal direction.
The utility model discloses during the specific use, the operating procedure as follows:
(1) firstly, according to test requirements, a tunnel lining structure to be researched is subjected to 1: 5-1: 10 or other similar proportions to manufacture a concrete lining test piece 17 with a U-shaped structure corresponding to the cross-sectional area and the diameter, curing is carried out after the concrete lining test piece 17 is formed, and form removal is carried out after a certain time of curing age. If the durability of the lining test piece under the salt environment is simulated, the test piece can be soaked in the chloride environment or sprayed with salt mist at the later stage.
(2) The lining test piece is transported to a test field, the lining is fixed by the aid of the limiting blocks, the bottom of the lining test piece is fixedly supported by the aid of the second hydraulic cylinder, the second pressure spring, the base plate and the supporting plate, the bottom of the lining test piece is supported by the supporting plate and is tightly fixed, and the left arch springing and the right arch springing of the lining test piece move in the horizontal direction limited by the limiting blocks. Then, the outer surface of the lining test piece is attached to the surface of the lining test piece through a first hydraulic cylinder, a first pressure spring and a base plate, vertical arc-shaped steel frames are formed after the arc-shaped steel plates are spliced and connected, and then the cylinder body end of the first hydraulic cylinder is fixed on the vertical arc-shaped steel frames. The counterforce wall horizontal separation of building by laying bricks or stones under the general condition has fixed dimension, and the steelframe should in time make the adjustment, finally contacts the bottom at steelframe both ends with the counterforce wall, and corresponding length adjustment is made to other part sizes, finally adjusts through first pneumatic cylinder stroke, makes the lining test piece tightly stand experimental position on, is fixed and is supported with steelframe, backup pad, counterforce wall at the whole surface of lining test piece like this.
(3) After the completion of the work, simulate the installation that vibrations take place the mechanism, fix first vibrating motor in the backup pad, the second vibrating motor passes through the motor mounting frame to be fixed on vertical arc steelframe, the laminating of annular vibrations piece is on the lateral wall of lining cutting test piece, here on the horizontal direction, the vibrations structure has all been arranged in the vertical direction, with transverse wave during the simulation earthquake, the propagation of longitudinal wave, to the concrete influence of lining cutting test piece during the research earthquake, then gather the anti-seismic test data, observe the destruction form on lining cutting test piece surface, the anti-seismic performance of the lining cutting test piece that the evaluation designed.
(4) And in order to simulate the restriction effect of surrounding rocks on the lining, the soil pressure, the lateral pressure and the like, the tunnel surrounding rock condition and the force borne by the tunnel surrounding rocks are simulated by adjusting the types of the springs and the hydraulic cylinders, the rigidity of the springs and the number of the springs. The lining member is in an eccentric compression state, and the stress condition of the lining test piece can be simulated by changing the position of the hydraulic cylinder.
The utility model discloses device structural style is simple, and subassembly such as pneumatic cylinder and spring can simulate the effect to the lining test piece such as different country rock environment and soil pressure that tunnel lining located. A vibration structure is added in the horizontal direction and the vertical direction of the lining test piece to simulate a real vibration scene so as to obtain the anti-seismic performance expression and the structural damage form of the lining test piece, and the horizontal tunnel lining horseshoe-shaped structural form is adopted to better accord with the working scene of tunnel lining under the actual engineering background.
Claims (10)
1. The utility model provides a horizontal tunnel lining constructional device for shock resistance test which characterized in that: the device comprises a counter-force mechanism, a horseshoe-shaped lining test piece, a lining test piece supporting mechanism, a lining test piece fixing mechanism, a lining test piece loading mechanism and a simulated vibration generating mechanism; the reaction mechanism comprises two reaction walls which are symmetrically arranged, and the tops of the two reaction walls are fixedly connected with a cross beam; the lining test piece supporting mechanism comprises a supporting plate fixed between the bottoms of the two reaction walls, and the lining test piece is fixed on the supporting plate; the lining test piece fixing mechanism comprises a vertical fixing mechanism and a horizontal fixing mechanism which are arranged on the outer side of the lining test piece; lining cutting test piece loading mechanism is including setting up vertical loading mechanism and the horizontal loading mechanism in the lining cutting test piece outside, the mechanism takes place including setting up the first vibrating motor in lining cutting test piece both sides and setting up the second vibrating motor in the lining cutting test piece top, and the output shaft of first vibrating motor and second vibrating motor all laminates with the outer wall of lining cutting test piece, first vibrating motor fixes in the backup pad, and the second vibrating motor is fixed on vertical fixed establishment.
2. The horizontal tunnel lining structure device for the earthquake-proof test according to claim 1, wherein: vertical fixed establishment is including setting up the vertical arc steelframe in lining cutting test piece periphery, the both ends of vertical arc steelframe and the bottom inside wall fixed connection of two counter-force walls, vertical arc steelframe top and crossbeam fixed connection, horizontal fixed establishment is including setting up the horizontal arc steelframe in lining cutting test piece periphery, the both ends of horizontal arc steelframe and the bottom inside wall fixed connection of two counter-force walls, horizontal arc steelframe is fixed in the backup pad, the second vibrating motor is fixed on vertical arc steelframe.
3. The horizontal tunnel lining structure device for the earthquake-proof test according to claim 2, wherein: the second vibrating motor is fixed on the vertical arc-shaped steel frame through the motor mounting frame, the second vibrating motor is fixed on the motor mounting frame through bolts, and the motor mounting frame is fixed on the vertical arc-shaped steel frame through bolts.
4. The horizontal tunnel lining structure device for the earthquake-proof test according to claim 2, wherein: the vertical arc-shaped steel frame and the horizontal arc-shaped steel frame are both stainless steel frames.
5. The horizontal tunnel lining structure device for the earthquake-proof test according to claim 2, wherein: the vertical arc-shaped steel frame is formed by sequentially splicing arc-shaped plates, and the adjacent arc-shaped plates are fixedly connected through bolts.
6. The horizontal tunnel lining structure device for the earthquake-proof test according to claim 2, wherein: the vertical loading mechanism comprises first hydraulic cylinders which are uniformly distributed on the inner side wall of the vertical arc-shaped steel frame and stretch out and draw back along the radial direction, first pressure springs are fixed at the piston rod ends of the first hydraulic cylinders, the first pressure springs are connected with the outer side wall of the lining test piece, the horizontal loading mechanism comprises second hydraulic cylinders which are uniformly distributed on the inner side wall of the horizontal arc-shaped steel frame and stretch out and draw back along the radial direction, second pressure springs are fixed at the piston rod ends of the second hydraulic cylinders, and the second pressure springs are connected with the outer side wall of the lining test piece.
7. The horizontal tunnel lining structure device for the earthquake-proof test according to claim 6, wherein: and the piston rod end of the first hydraulic cylinder and the piston rod end of the second hydraulic cylinder are both fixed with loading heads, and the first pressure spring and the second pressure spring are respectively fixed on the corresponding loading heads.
8. The horizontal tunnel lining structure device for the earthquake-proof test according to claim 6, wherein: and one ends of the first pressure spring and the second pressure spring, which are connected with the lining test piece, are respectively fixed with a base plate, and the base plates are attached to the outer side wall of the lining test piece.
9. The horizontal tunnel lining structure device for the earthquake-proof test according to claim 1, wherein: the output shafts of the first vibration motor and the second vibration motor are connected with a transmission shaft through a coupler, the end parts of the transmission shaft are fixed with annular vibration blocks, and the annular vibration blocks are attached to the outer wall of the lining test piece.
10. The horizontal tunnel lining structure device for the earthquake-proof test according to claim 1, wherein: the inner side and the outer side of the arch foot of the lining test piece are both provided with limiting blocks, and the limiting blocks are fixed on the supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120568642.7U CN214224477U (en) | 2021-03-19 | 2021-03-19 | Horizontal tunnel lining structure device for anti-seismic test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120568642.7U CN214224477U (en) | 2021-03-19 | 2021-03-19 | Horizontal tunnel lining structure device for anti-seismic test |
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| Publication Number | Publication Date |
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| CN214224477U true CN214224477U (en) | 2021-09-17 |
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| CN202120568642.7U Expired - Fee Related CN214224477U (en) | 2021-03-19 | 2021-03-19 | Horizontal tunnel lining structure device for anti-seismic test |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486140A (en) * | 2022-02-09 | 2022-05-13 | 广州大学 | Can simulate no soil box tunnel shaking table test device on quiet border of moving |
| CN114705386A (en) * | 2022-02-25 | 2022-07-05 | 河海大学 | Pseudo-static anti-seismic testing device and method for long and large tunnel structure |
| CN115541158A (en) * | 2022-09-20 | 2022-12-30 | 广州大学 | Loading device suitable for large-scale vibration table test penetrating through tunnels with various stratums |
| CN115597804A (en) * | 2022-09-20 | 2023-01-13 | 广州大学（Cn） | Device and method suitable for vibration array test of ultra-long tunnel |
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2021
- 2021-03-19 CN CN202120568642.7U patent/CN214224477U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486140A (en) * | 2022-02-09 | 2022-05-13 | 广州大学 | Can simulate no soil box tunnel shaking table test device on quiet border of moving |
| CN114486140B (en) * | 2022-02-09 | 2023-08-04 | 广州大学 | Can simulate no soil box tunnel shaking table test device of quiet dynamic boundary |
| CN114705386A (en) * | 2022-02-25 | 2022-07-05 | 河海大学 | Pseudo-static anti-seismic testing device and method for long and large tunnel structure |
| CN114705386B (en) * | 2022-02-25 | 2024-03-01 | 河海大学 | Quasi-static force anti-seismic test device and test method for long tunnel structure |
| CN115541158A (en) * | 2022-09-20 | 2022-12-30 | 广州大学 | Loading device suitable for large-scale vibration table test penetrating through tunnels with various stratums |
| CN115597804A (en) * | 2022-09-20 | 2023-01-13 | 广州大学（Cn） | Device and method suitable for vibration array test of ultra-long tunnel |
| CN115597804B (en) * | 2022-09-20 | 2023-09-19 | 广州大学 | Device and method suitable for ultra-long tunnel vibration table array test |
| CN115541158B (en) * | 2022-09-20 | 2023-10-31 | 广州大学 | Loading device suitable for large-scale vibration table test penetrating through various stratum tunnels |
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Granted publication date: 20210917 |