CN218994285U - Shield tunnel segment staggering monitoring device based on sliding resistor principle - Google Patents
Shield tunnel segment staggering monitoring device based on sliding resistor principle Download PDFInfo
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- CN218994285U CN218994285U CN202223497192.0U CN202223497192U CN218994285U CN 218994285 U CN218994285 U CN 218994285U CN 202223497192 U CN202223497192 U CN 202223497192U CN 218994285 U CN218994285 U CN 218994285U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a shield tunnel segment dislocation monitoring device based on a sliding resistor principle, and belongs to the technical field of tunnels. The device comprises a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are respectively mounted on different duct pieces, a sliding rod is fixedly arranged on one surface of the first mounting plate, a sliding sheet is arranged at one end, far away from the first mounting plate, of the sliding rod, and the sliding sheet is connected with a first binding post; a sliding resistance wire is arranged on the second mounting plate, one end of the sliding resistance wire is provided with a second binding post, and the sliding sheet can slide on the sliding resistance wire; simultaneously still be equipped with ampere meter and power, ampere meter and power pass through first terminal and second terminal and slip resistance wire series arrangement. According to the utility model, the first mounting plate, the second mounting plate, the sliding vane, the sliding resistance wire, the ammeter and the power supply are arranged, so that the dislocation condition of the segment to be measured can still be accurately measured under the condition of simpler structure, the cost is lower, and the application range is greatly increased.
Description
Technical Field
The utility model belongs to the technical field of tunnels, and particularly relates to a shield tunnel segment dislocation monitoring device based on a sliding resistor principle.
Background
The shield construction method is a main method of urban rail transit subway tunnels, but in the construction process of the shield tunnels, the phenomenon of dislocation easily occurs in segment assembly, the appearance of the tunnels is affected, the local part of the segment is damaged or leaked due to overlarge stress, the distance between the shield tails is too small, and the brush at the shield tails is extruded and damaged, so that grease and slurry are wasted, the ground subsides overrun, the bottom pushing oil cylinder of the shield machine is damaged, and the like.
At present, a steel rule, a tape measure, a triangle and the like are generally adopted for segment dislocation monitoring of the shield tunnel, and manual measurement, recording and analysis are carried out by constructors, so that the workload is huge and the measurement accuracy is low. Because the inside visual angle condition of tunnel is poor, only need with the help of the flashlight can the reading during the measurement, in addition, the manual work is very inconvenient to the measurement of tunnel vault, spandrel position, is unfavorable for carrying out continuous tracking monitoring to shield tunnel section of jurisdiction dislocation volume. In order to facilitate monitoring, the prior art tries to develop some automatic monitoring devices, for example, chinese patent CN202111256547.4 proposes a device and a method for measuring the deformation of a tunnel segment joint of a shield tunnel, which combines various components to measure the deformation of a staggered platform of a segment, and although a certain result can be obtained, the structure is complex, the manufacturing cost is relatively high, and the condition inside the tunnel is complex, so that the applicability of the device is greatly reduced.
Disclosure of Invention
In order to solve at least one of the problems, the utility model provides a shield tunnel segment dislocation monitoring device based on a sliding resistor principle, which has lower cost and higher accuracy.
The technical scheme of the utility model is as follows: the shield tunnel segment staggering monitoring device based on the principle of a sliding resistor comprises a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are respectively mounted on different segments, a sliding rod is fixedly arranged on one surface of the first mounting plate, a sliding sheet is arranged at one end, far away from the first mounting plate, of the sliding rod, and the sliding sheet is connected with a first binding post; the sliding resistance wire is arranged on the second mounting plate, a second binding post is arranged at one end of the sliding resistance wire, and the sliding sheet can slide on the sliding resistance wire; simultaneously still be equipped with ampere meter and power, ampere meter and power pass through first terminal and second terminal with the series arrangement of sliding resistance wire.
The second mounting plate is further provided with a waterproof box, and the ammeter, the power supply and the sliding resistance wire are all arranged inside the waterproof box.
In one embodiment of the present utility model, the slide bar is an L-shaped slide bar.
One embodiment of the utility model is that the serial circuit formed by the ammeter, the power supply and the sliding resistance wire further comprises at least one protection resistor.
In one embodiment of the present utility model, an insulation column is provided on the second mounting plate, and the sliding resistance wire is wound around the insulation column.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the first mounting plate, the second mounting plate, the sliding vane, the sliding resistance wire, the ammeter and the power supply are arranged, so that the dislocation condition of the segment to be measured can still be accurately measured under the condition of simpler structure, the cost is lower, and the application range is greatly increased.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and should not be construed as limiting the present utility model.
The deep hole in this embodiment refers to a hole with a length of the hole for mounting the bolt/screw greater than 5 cm.
Referring to fig. 1, a shield tunnel segment dislocation monitoring device based on a sliding resistor principle comprises a first mounting plate 1 and a second mounting plate 2, wherein the first mounting plate 1 and the second mounting plate 2 are respectively mounted on different segments, a sliding rod 3 is fixedly arranged on one surface of the first mounting plate 1, a sliding sheet 4 is arranged at one end, away from the first mounting plate 1, of the sliding rod 3, and the sliding sheet 4 is connected with a first binding post 5; a sliding resistance wire 6 is arranged on the second mounting plate 2, a second binding post 8 is arranged at one end of the sliding resistance wire 6, and the sliding sheet 4 can slide on the sliding resistance wire 6; simultaneously, an ammeter 11 and a power supply 10 are also arranged, and the ammeter 11 and the power supply 10 are connected in series with the sliding resistance wire 6 through the first binding post 5 and the second binding post 8.
Specifically, the first mounting plate 1 and the second mounting plate 2 are used for being directly connected with the segment to be tested, when the segment to be tested is staggered, one of the mounting plates moves along with the segment to be tested, and finally, other parts are driven to move. Meanwhile, for the first mounting plate 1 and the second mounting plate 2, various connection modes can be adopted between the first mounting plate and the segment to be tested, such as glue adhesion, bolt fixing connection and the like.
A sliding resistance wire 6 is arranged on the second mounting plate 2, a sliding sheet 4 is arranged on the sliding rod 3, the sliding sheet 4 is matched with the sliding resistance wire 6, when the sliding sheet 4 and the sliding resistance wire 6 are combined, a sliding rheostat is formed, and as is clear to a person skilled in the art, the resistance of the whole rheostat changes along with the sliding of the sliding sheet 4. In order to facilitate the subsequent electrical connection, a first terminal 5 is provided on the slide and a second terminal 8 is provided at one end of the sliding resistor 6 wire. Although in theory, the second binding post 8 is arranged at any position of the sliding resistance wire 6 to meet the corresponding use requirement, because the further the distance between the first binding post 5 and the second binding post 8 is, the smaller the resistance value of the whole sliding rheostat is, if the second binding post 8 is arranged at the middle part of the sliding resistance wire 6, the smaller the resistance value variation range of the whole sliding rheostat is caused, and the fact that the segment to be detected floats upwards or sinks is difficult to find.
Meanwhile, in order to facilitate quantitative measurement of the moving distance of the segment to be measured, it is preferable that the resistance of each part on the sliding resistance wire 6 is uniform, that is, the material and the size of any part of the whole sliding resistance wire 6 are completely the same, so that the resistance change of the sliding resistance wire 6 is in direct proportion to the moving distance of the segment to be measured, so that the moving distance of the segment to be measured is quantitatively monitored.
Meanwhile, similarly to the conventional sliding varistors, in this embodiment, the sliding resistance wire 6 is wound around an insulating column 7, and then the sliding piece 4 is in contact with the sliding resistance wire 6, which is more mature, and therefore has a relatively lower cost, and at the same time makes the sliding resistance wire 6 relatively firm.
Meanwhile, for the sliding rod 3, the main function is to connect the sliding sheet 4 and the first mounting plate 1, preferably in the shape of an L, one end of which is connected with the first mounting plate 1 and the other end of which is connected with the sliding sheet 4. It will be readily appreciated by those skilled in the art that the sliding rod 3 should be of an insulating material, at least at one end thereof adjacent to the slide 4.
After the resistance value is changed, the change of the moving distance of the segment to be measured is obtained according to the change of the resistance value, and the resistance value is difficult to directly measure at present, so in the embodiment, the power supply 10 and the ammeter 11 which are connected in series with the sliding resistance wire 6 indirectly reflect the change of the resistance value, and further reflect the change of the moving distance of the segment to be measured.
In some cases, when the distance between the first binding post 5 and the second binding post 8 is very close to even 0 due to the movement of the tube piece, the resistance value of the whole circuit is small, so that the current of the circuit is easily overlarge to be burnt out, and in order to prevent the situation, the utility model is also provided with a protection resistor 9 on the whole series circuit, and the protection resistor 9 is also connected in series, so that the resistance of the whole circuit is not lower than the resistance value of the protection resistor at the lowest, and the possibility of burning out the circuit is greatly reduced.
In order to prevent the circuit from being in contact with water and causing a short circuit, a waterproof box 12 is further provided on the second mounting plate 2 in this embodiment, and the ammeter 11, the power supply 10, the sliding resistance wire 6 and the protection resistor 9 are all disposed in the waterproof box. It will be readily appreciated by those skilled in the art that for the waterproof box 12 to be formed with a channel for the sliding rod 7 to move toward one end of the sliding rod 3.
As is clear from the above, the device of this embodiment has a simple structure, uses fewer parts, and therefore has a relatively low cost, and according to the current cost, only tens of yuan is needed, and if mass production is performed, the cost is lower.
The principle of the device is as follows: according to ohm's law u=ir, when the voltage is constant, the current and the resistance are inversely proportional, but in this embodiment, the power supply voltage is generally stable, so when the value of the ammeter changes, the resistance changes, and the resistance changes are relatively related to the floating or sinking of the segment to be measured, so when the voltage and the initial resistance of the whole circuit are known, the change value of the resistance can be obtained according to the change condition of the current; for the sliding resistance wire, the resistance and the moving distance are in a direct proportion relation, so that the moving distance can be easily obtained according to the change of the resistance, and finally the moving direction and the moving distance of the segment to be measured can be calculated.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model disclosed in the embodiments of the present utility model should be covered by the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (5)
1. The shield tunnel segment staggering monitoring device based on the principle of a sliding resistor is characterized by comprising a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are respectively mounted on different segments, a sliding rod is fixedly arranged on one surface of the first mounting plate, a sliding sheet is arranged at one end, far away from the first mounting plate, of the sliding rod, and the sliding sheet is connected with a first binding post; the sliding resistance wire is arranged on the second mounting plate, a second binding post is arranged at one end of the sliding resistance wire, and the sliding sheet can slide on the sliding resistance wire; simultaneously still be equipped with ampere meter and power, ampere meter and power pass through first terminal and second terminal with the series arrangement of sliding resistance wire.
2. The shield tunnel segment dislocation monitoring device based on the sliding resistor principle according to claim 1, wherein a waterproof box is further arranged on the second mounting plate, and the ammeter, the power supply and the sliding resistance wire are all arranged inside the waterproof box.
3. The shield tunnel segment dislocation monitoring device based on the principle of a sliding resistor as claimed in claim 1, wherein the sliding rod is an L-shaped sliding rod.
4. The shield tunnel segment fault detection device based on the sliding resistor principle according to claim 1, wherein the serial circuit formed by the ammeter, the power supply and the sliding resistance wire further comprises at least one protection resistor.
5. The shield tunnel segment dislocation monitoring device based on the sliding resistor principle according to claim 1, wherein an insulation column is arranged on the second mounting plate, and the sliding resistor wire is wound on the insulation column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223497192.0U CN218994285U (en) | 2022-12-27 | 2022-12-27 | Shield tunnel segment staggering monitoring device based on sliding resistor principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223497192.0U CN218994285U (en) | 2022-12-27 | 2022-12-27 | Shield tunnel segment staggering monitoring device based on sliding resistor principle |
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| CN218994285U true CN218994285U (en) | 2023-05-09 |
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| CN202223497192.0U Active CN218994285U (en) | 2022-12-27 | 2022-12-27 | Shield tunnel segment staggering monitoring device based on sliding resistor principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118268417A (en) * | 2024-05-30 | 2024-07-02 | 哈尔滨商业大学 | Straightening machine for metal tube processing |
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2022
- 2022-12-27 CN CN202223497192.0U patent/CN218994285U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118268417A (en) * | 2024-05-30 | 2024-07-02 | 哈尔滨商业大学 | Straightening machine for metal tube processing |
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