CN108731641B - Tunnel multi-section and multi-angle measurement structure convergence device - Google Patents
Tunnel multi-section and multi-angle measurement structure convergence device Download PDFInfo
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- CN108731641B CN108731641B CN201810395324.8A CN201810395324A CN108731641B CN 108731641 B CN108731641 B CN 108731641B CN 201810395324 A CN201810395324 A CN 201810395324A CN 108731641 B CN108731641 B CN 108731641B
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- 238000005259 measurement Methods 0.000 title claims description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 49
- 230000033228 biological regulation Effects 0.000 claims description 12
- 125000004122 cyclic group Chemical group 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000003827 upregulation Effects 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 2
- 239000011435 rock Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C7/00—Tracing profiles
- G01C7/06—Tracing profiles of cavities, e.g. tunnels
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a tunnel multi-section multi-angle measuring structure convergence device, which is characterized in that a lifter main body, a lower adjusting rod, an upper adjusting rod, a bracket ring main body and an electronic displacement meter are arranged, the height of the instrument is adjusted by utilizing a hand-operated screw rod, the electronic displacement meter can measure any position and any angle in a tunnel and the like through adjusting the position and the angle of the bracket ring on the upper screw rod, the number of measuring sections can be measured by adding the bracket ring, the traditional mechanical measuring instrument is improved into an electronic type, a time device is arranged on the measuring instrument, the position change of an elastic rod is converted into an electric signal, the electric signal is transmitted to the instrument device through a lead, the data display instrument converts the electric signal into a reading, and the reading is directly displayed on a display screen, so that a tester is not required to observe the data by the instrument, the time is saved, and the efficiency is improved. Therefore, the invention has the characteristics of simple structure, convenient operation, wide application range, high reading speed and high measuring precision.
Description
Technical Field
The invention relates to a device and a method for measuring structure convergence in tunnel model experiments, in particular to a device for measuring structure convergence of multiple sections and angles of a tunnel, and belongs to the field of geotechnical test instruments.
Background
The deformation of points around the tunnel towards the center of the tunnel is called convergence. The convergence measurement is an important measurement item in a tunnel indoor model test, is the most basic measurement data, and is used for grasping the change rule of the surrounding rock along with time by observing the clearance convergence quantity around the surrounding rock and the speed of the clearance convergence quantity, so that the deformation quantity of the surrounding rock is judged, the basis is provided for the secondary support time, and the deformation quantity of the structure is ensured to be within the total deformation quantity, so that the construction is guided.
The current instruments for measuring the convergence displacement of the indoor tunnel model structure mainly comprise two types: ① Mechanical, e.g. dial, gauges; ② Electronic, such as a laser rangefinder. The main problem with mechanical systems is that they do not have a timing device and do not read quickly and accurately. The electronic type main problem is that the instrument is complex to use, the environmental condition requirement is high, the manufacturing cost is high, and the electronic type instrument cannot be popularized and used in a large area in a model test.
Disclosure of Invention
The invention aims to provide a convergence device of a tunnel multi-section and multi-angle measurement structure, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a tunnel multi-section, multi-angle measurement structure convergence device, including the lift main part, lower regulation pole, go up regulation pole, support ring main part and electron displacement meter, lower regulation pole lower extreme is fixed on the elevating gear of lift main part, go up regulation pole one end and lower regulation pole upper end fixed connection, support ring main part is the cyclic annular body, all be equipped with a plurality of mounting holes around the cyclic annular body of support ring main part, electron displacement meter (demountable installation is in the mounting hole around the cyclic annular body of support ring main part, electron displacement meter is connected with data display through the signal transmission line, data display is used for gathering detection signal display through electron displacement meter.
Further, a plurality of bracket ring bodies are arranged on the upper adjusting rod.
Further, the lifter main body comprises a fixed base and a hand-operated screw lifter, and the hand-operated screw lifter is fixedly connected with the fixed base through a welding bracket.
Further, the bracket ring main body comprises an outer sleeve and an inner sleeve sleeved on the upper adjusting rod, the outer sleeve is sleeved on the outer side of the inner sleeve, screw holes are formed in the side walls of the outer sleeve and the inner sleeve, and the outer sleeve and the inner sleeve are fixed on the upper adjusting rod through screws; the outer side of the outer sleeve is provided with a sleeve guide rail, the electronic displacement meter is further provided with a support ring sleeve, the support ring sleeve is provided with an inner sleeve guide rail through hole, the support ring sleeve is sleeved on the outer sleeve, the outer side of the support ring sleeve is provided with a plurality of connecting rods, and the electronic displacement meter is fixedly connected with the connecting rods through threads.
Further, the lower adjusting rod and the upper adjusting rod are screw rods, the lower adjusting rod is connected with the lifting rod of the hand-operated screw rod lifter through threads, and the lower adjusting rod is connected with the upper adjusting rod through a two-way threaded sleeve.
Further, the inner sleeve is provided with an internal thread, and the inner sleeve is connected with the upper adjusting rod through a threaded sleeve.
Further, one end of the electronic displacement meter is provided with a threaded sleeve which is used for being connected with the connecting rod, the other end of the electronic displacement meter is provided with an elastic rod, the electronic displacement meter is connected with a measuring body in the electronic displacement meter through the elastic rod, and the measuring body is connected to the data display instrument through a signal output lead.
Further, the data display instrument comprises a data acquisition controller, the data acquisition controller is connected with the signal output wire through a data input wire, the data display instrument further comprises a data display screen and a timing screen which are arranged on the data display instrument, the data display instrument is further provided with a switch button, and the data display screen and the timing screen are both connected with the data acquisition instrument.
Compared with the prior art, the invention has the following beneficial technical effects:
The invention relates to a tunnel multi-section multi-angle measurement structure convergence device which comprises a lifter main body, a lower adjusting rod, an upper adjusting rod, a support ring main body and an electronic displacement meter, wherein the lower end of the lower adjusting rod is fixed on a lifting device of the lifter main body, one end of the upper adjusting rod is fixedly connected with the upper end of the lower adjusting rod, the support ring main body is fixedly arranged on the upper adjusting rod, the support ring main body is an annular body, a plurality of mounting holes are formed in the periphery of the annular body of the support ring main body, the electronic displacement meter is connected with a data display instrument through a signal transmission line, the data display instrument is used for collecting detection signals through the electronic displacement meter, the height of the instrument is adjusted through a hand-operated screw rod, the electronic displacement meter can be used for measuring any position and any angle in a tunnel or roadway through the adjustment position and angle of the upper screw rod of the support ring, and the support ring can be additionally arranged according to the requirement of the number of measurement sections. The mechanical measuring instrument in the past is improved into the electronic type, a time device is arranged on the measuring instrument, the position change of the elastic rod is converted into an electric signal, the electric signal is transmitted to the data display instrument through a lead, the data display instrument converts the electric signal into a reading, and the reading is directly displayed on a display screen, so that the time is saved, and the efficiency is improved. Therefore, the invention has the characteristics of simple structure, convenient operation, wide application range, high reading speed and high measuring precision.
Furthermore, through the fixation of a plurality of support rings on an upper screw rod, an electronic displacement meter can be placed on a plurality of test sections, and convergence deformation of a plurality of angle positions such as a measuring vault, a vault bottom, a left side arch waist, a right side arch waist and the like can be achieved, so that the measurement of a plurality of sections of a tunnel model is realized.
Furthermore, the connection and fixation mode of the bracket ring adopts the modes of bolt connection, inner hexagonal set screw fixation and embedding fixation, so that the electronic displacement meter is more stable in measurement in the tunnel, and the accuracy is higher.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the fixing bracket of the present invention.
Fig. 3 is a schematic view of the hand-operated screw lifter of the present invention.
Fig. 4 is a schematic diagram of the internal worm gear structure of the screw rod lifter.
Fig. 5 is a schematic view of the circular ring structure of the bracket of the present invention.
FIG. 6 is a schematic diagram of the electronic displacement meter structure of the present invention.
FIG. 7 is a schematic diagram of the installation of the electronic displacement meter structure of the present invention.
FIG. 8 is a schematic diagram of a data display screen of the present invention.
FIG. 9 is a schematic view of the structure of the hexagon socket set screw of the present invention.
1, An elevator main body; 2. a lower adjusting rod; 3. a two-way threaded sleeve; 4. an upper adjusting rod; 5. an inner sleeve; 6. an outer sleeve; 7. a bracket ring sleeve; 8. a signal output wire; 9. an elastic rod; 10. a threaded sleeve; 11. a threaded rod; 12. a data input wire; 13. a data display; 14. a data display screen; 15. a timing screen; 16. a switch button; 17. surrounding rock of the tunnel; 18. an electronic displacement meter; 19. a fixing bracket main body; 20. a bracket ring body; 21. a connecting rod; 22. a hand rocker; 23. a fixed base; 24. welding a bracket; 25. a hand screw rod lifter; 26. a worm wheel; 27. a worm; 29. an inner hexagon screw.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
As shown in fig. 1 to 9, a tunnel multi-section multi-angle measurement structure convergence device comprises a lifter main body 1, a lower adjusting rod 2, an upper adjusting rod 4, a support ring main body 20 and an electronic displacement meter 18, wherein the lower end of the lower adjusting rod 2 is fixed on the lifter of the lifter main body 1, one end of the upper adjusting rod 4 is fixedly connected with the upper end of the lower adjusting rod 2, the support ring main body 20 is fixedly arranged on the upper adjusting rod 4, the support ring main body 20 is a ring body, a plurality of mounting holes are formed in the periphery of the ring body of the support ring main body 20, the electronic displacement meter 18 is detachably arranged in the mounting holes in the periphery of the ring body of the support ring main body 20, and the electronic displacement meter 18 is connected with a data display through a signal transmission line 8 and is used for acquiring detection signals through the electronic displacement meter 18 for display.
Specifically, the upper adjusting rod 4 is provided with a plurality of bracket ring bodies 20;
The lifter main body 1 comprises a fixed base 23 and a hand-operated screw lifter 25, the hand-operated screw lifter 25 is fixedly connected with the fixed base 23 through a welding bracket 24, the hand-operated screw lifter 25 is a turbine worm transmission mechanism, as shown in fig. 4, a worm 27 in the hand-operated screw lifter 25 is connected through a hand lever 22 to drive a worm wheel 26 to transmit, so that lifting of a lifting rod of the hand-operated screw lifter 25 is realized;
The lower adjusting rod 2 and the upper adjusting rod 4 are both threaded rods, the lower adjusting rod 2 is connected with the lifting rod of the hand-operated screw rod lifter 25 through threads, and the lower adjusting rod 2 is connected with the upper adjusting rod 4 through a two-way threaded sleeve 3;
The bracket ring main body 20 comprises an outer sleeve 6 and an inner sleeve 5 sleeved on the upper adjusting rod 4, the outer sleeve 6 is sleeved on the outer side of the inner sleeve 5, screw holes are formed in the side walls of the outer sleeve 6 and the inner sleeve 5, and the outer sleeve 6 and the inner sleeve 5 are fixed on the upper adjusting rod 4 through screws; the outer side of the outer sleeve 6 is provided with a sleeve guide rail, and the electronic displacement meter comprises a bracket circular sleeve 7, wherein the bracket circular sleeve 7 is sleeved on the outer sleeve 6, a plurality of connecting rods 21 are uniformly arranged on the outer side of the bracket circular sleeve 7, and the electronic displacement meter 18 is fixedly connected with the connecting rods 21 through threads; the outer sleeve 6 and the inner sleeve 5 are both fixed on the connecting rod 21 through socket head cap screws 29;
One end of the electronic displacement meter 18 is provided with a threaded sleeve 10 for connecting with a connecting rod 21, the other end is provided with an elastic rod 9, the elastic rod 9 is connected with a measuring body in the electronic displacement meter 18, and the measuring body is connected with a data display instrument through a signal output lead 8;
Specifically, the connecting rod 21 and the electronic displacement meter 18 are connected through the threaded rod 11; the two ends of the threaded rod 11 are respectively in threaded connection with the connecting rod 21 and the electronic displacement meter 18;
the connecting rod 21 is provided with an inner hexagon nut which is fixedly connected with the threaded sleeve 10 at one end of the electronic displacement meter 18, so that the angle of the electronic displacement meter 18 can be conveniently adjusted;
specifically, the inner sleeve 5 is provided with an internal thread, the inner sleeve 5 is connected with the upper adjusting rod 4 through a threaded sleeve, and the fixed position of the inner sleeve 5 is adjusted according to the detection position;
the data display instrument 13 comprises a data acquisition controller, the data acquisition controller is connected with the signal output wire 8 through a data input wire 12, the data display instrument 13 further comprises a data display screen 14 and a timing screen 15 which are arranged on the data display instrument 13, the data display instrument 13 is further provided with a switch button 16, and the data display screen 14 and the timing screen 15 are both connected with the data acquisition instrument;
The fixed support body is characterized in that a lower adjusting rod 2 is subjected to height adjustment through a hand-operated screw rod lifter 25, the lower adjusting rod and an upper adjusting rod 4 are bolted through a two-way threaded sleeve 3, the length of the lower adjusting rod and the length of the upper adjusting rod can be adjusted according to the depth of a tunnel model, after an inner sleeve 5 is fixed at a certain position of the upper adjusting rod 4 through two M10 inner hexagonal set screws 29, an outer sleeve 6 is sleeved into a small steel pipe, the inner sleeve 5 and the upper adjusting rod 4 are fixed through two M8 inner hexagonal set screws 29, the support ring sleeve 7 is embedded into the support ring body 20 for fixation, the connecting rod 21 of the support ring sleeve 7 and an inner threaded cylinder at the lower end of an electronic displacement meter body 18 are bolted through threaded short rods, the length and the number of required measuring sections of the support ring body 20 are set according to the size requirement of a tunnel surrounding rock 17 and the test requirement, the switch button 16 of a data display 13 is opened, data is transmitted to a data input wire 12 through a signal output wire 8 of the electronic displacement meter body 18 to a data display screen 14, and the data display screen 14 and a time display screen 15 are clocked on the display screen;
The screw rod lifter main body 1 at the proper position outside the excavated tunnel portal is connected with the lower adjusting rod 2 to a proper height through the hand rocker, the two-way threaded sleeve 3 and the upper adjusting rod 4 are bolted, the support ring main body 20 is adjusted to reach the position to be measured at the upper adjusting rod 4, the measuring angle is adjusted, the number of the measured sections is determined according to the requirement, then the electronic displacement meter main body 18 is installed, the hole is measured, the switch button 16 is opened at the moment to observe the data display screen 14, the data reaches proper initial data through the fine adjustment of the lower adjusting rod 2 and the upper adjusting rod 4, and the displacement data at different moments can be recorded according to the moment of the timing screen 15 after the installation is completed.
The internal structure of the hand-operated screw rod lifter mainly comprises a worm wheel, a worm and a nut with an iron arc, wherein the diameter of the worm wheel is 90mm, the pitch of the gear and the pitch of the worm are 4mm, and the external structure comprises a fixed die and a hand-operated rod. The worm is driven to rotate by the hand crank, so that the worm wheel is driven to rotate, the nut is driven by the rotation of the worm wheel, and the lower screw rod can move up and down to adjust the height. The bottom of the hand-operated screw rod lifter is reserved with the caliber as large as the diameter of the lower screw rod, so that the height adjustment is facilitated;
The height of the instrument is adjusted through the hand-operated screw rod, and the position and the angle of the electronic displacement meter can be adjusted through the support ring on the upper screw rod, so that any position and any angle inside a tunnel, a roadway and the like can be measured, and the support ring can be additionally arranged for measurement according to the number of measured sections. The prior mechanical measuring instrument is improved to an electronic type, and the measuring instrument is provided with a time device. The position change of the elastic rod is converted into an electric signal, the electric signal is transmitted to the instrument device through a lead, and the data display instrument converts the electric signal into a reading and directly displays the reading on the display screen. Time is saved, and efficiency is improved. Therefore, the invention has the characteristics of simple structure, convenient operation, wide application range, high reading speed and high measuring precision.
Through the fixation of a plurality of support rings on an upper screw rod, simultaneously, a plurality of test sections can be provided with electronic displacement meters, and convergence deformation of a plurality of angle positions such as a measuring vault, a vault bottom, a left side arch waist, a right side arch waist and the like can be realized, so that the measurement of a plurality of sections of a tunnel model is realized.
The connection and fixation mode of the bracket ring adopts the mode of bolt connection, inner hexagon set screw fixation and embedding fixation, so that the electronic displacement meter is more stable in measurement in the tunnel, and the accuracy is higher.
Claims (2)
1. The utility model provides a tunnel multi-section, multi-angle measurement structure convergence device, a serial communication port, including lift main part (1), lower regulation pole (2), go up regulation pole (4), support ring main part (20) and electronic displacement meter (18), lower regulation pole (2) lower extreme is fixed on the elevating gear of lift main part (1), go up regulation pole (4) one end and lower regulation pole (2) upper end fixed connection, support ring main part (20) fixed mounting is on last regulation pole (4), support ring main part (20) are the cyclic annular body, support ring main part (20) all are equipped with a plurality of mounting holes all around, electronic displacement meter (18) demountable installation is in the mounting hole around support ring main part (20) cyclic annular body, electronic displacement meter (18) are connected with the data display appearance through signal transmission line (8), the data display appearance is used for electronic displacement meter (18) to gather the detection signal and shows, upward install a plurality of support ring main parts (20) on regulation pole (4), lift main part (1) include unable adjustment base (23) and lead screw elevator (25), support ring main part (25) are fixed with hand crank carrier (4) are fixed on hand crank carrier (4) are connected through fixed ring (24) and are fixed sleeve (5), the outer sleeve (6) is sleeved on the outer side of the inner sleeve (5), screw holes are formed in the side walls of the outer sleeve (6) and the inner sleeve (5), and the outer sleeve is fixed on the upper adjusting rod (4) through screws; the outside of outer tube (6) is equipped with the sleeve pipe guide rail, still include support ring sleeve (7), support ring sleeve (7) are equipped with interior sleeve pipe guide rail through-hole, support ring sleeve (7) cover is established on outer tube (6), support ring sleeve (7) outside all is equipped with a plurality of connecting rods (21), electron displacement meter (18) are fixed through threaded connection with connecting rod (21), be equipped with hexagon socket head cap on connecting rod (21), screw sleeve (10) fixed connection through hexagon socket head cap and electron displacement meter (18) one end, interior sleeve pipe (5) are equipped with the internal thread, interior sleeve pipe (5) are connected through the thread bush with last regulation pole (4), and with hexagon socket head cap screw is fixed, lower regulation pole (2) and last regulation pole (4) are the screw rod, down adjust the lifter through threaded connection between pole (2) and the last regulation pole (4) through two lead screw sleeve (3) being connected, electron displacement meter (18) one end is equipped with and is used for being connected with connecting rod (21) screw sleeve (10), the other end is equipped with elastic rod (9), through electronic elastic rod (9) connection body (18) through measuring signal gauge measuring line measuring instrument in the measuring instrument, the displacement body through showing signal connection body (8).
2. The tunnel multi-section multi-angle measurement structure convergence device according to claim 1, wherein the data display (13) comprises a data acquisition controller, the data acquisition controller is connected with the signal transmission line (8) through a data input wire (12), the data display (13) further comprises a data display screen (14) and a timing screen (15) which are arranged on the data display (13), the data display (13) is further provided with a switch button (16), and the data display screen (14) and the timing screen (15) are both connected to the data acquisition device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810395324.8A CN108731641B (en) | 2018-04-27 | 2018-04-27 | Tunnel multi-section and multi-angle measurement structure convergence device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810395324.8A CN108731641B (en) | 2018-04-27 | 2018-04-27 | Tunnel multi-section and multi-angle measurement structure convergence device |
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| Publication Number | Publication Date |
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| CN108731641A CN108731641A (en) | 2018-11-02 |
| CN108731641B true CN108731641B (en) | 2024-05-07 |
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| CN113432979B (en) * | 2021-06-22 | 2022-08-05 | 浙江创新工程检测有限公司 | Bearing capacity detection equipment for reinforced concrete structure and reinforced concrete detection method |
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| JPS62153706A (en) * | 1985-12-27 | 1987-07-08 | Shimizu Constr Co Ltd | Method for measuring inner cavity displacement using high frequency modulated light waves |
| CN201745588U (en) * | 2010-08-16 | 2011-02-16 | 上海地铁盾构设备工程有限公司 | Special rail car for tunnel cross section scanning system |
| JP2016044431A (en) * | 2014-08-21 | 2016-04-04 | 五洋建設株式会社 | Ground displacement measuring device and ground displacement measuring method |
| CN205228375U (en) * | 2015-12-19 | 2016-05-11 | 长安大学 | Experimental lining deformation monitoring devices of tunnel model |
| CN206479154U (en) * | 2017-03-06 | 2017-09-08 | 重庆大学 | A kind of displacement meter lifting support frame |
| CN208206111U (en) * | 2018-04-27 | 2018-12-07 | 长安大学 | A kind of multibreak face in tunnel, multiangular measurement structure restrain device |
-
2018
- 2018-04-27 CN CN201810395324.8A patent/CN108731641B/en active Active
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|---|---|---|---|---|
| JPS62153706A (en) * | 1985-12-27 | 1987-07-08 | Shimizu Constr Co Ltd | Method for measuring inner cavity displacement using high frequency modulated light waves |
| CN201745588U (en) * | 2010-08-16 | 2011-02-16 | 上海地铁盾构设备工程有限公司 | Special rail car for tunnel cross section scanning system |
| JP2016044431A (en) * | 2014-08-21 | 2016-04-04 | 五洋建設株式会社 | Ground displacement measuring device and ground displacement measuring method |
| CN205228375U (en) * | 2015-12-19 | 2016-05-11 | 长安大学 | Experimental lining deformation monitoring devices of tunnel model |
| CN206479154U (en) * | 2017-03-06 | 2017-09-08 | 重庆大学 | A kind of displacement meter lifting support frame |
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| Title |
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| 新型套管式同轴多点位移计及其在隧道围岩变形监测中的应用;陈义军;刘长武;徐进;方延强;;岩土工程学报;20080715(第07期);全文 * |
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