CN214310888U - Device for measuring tunnel peripheral convergence and vault settlement - Google Patents
Device for measuring tunnel peripheral convergence and vault settlement Download PDFInfo
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- CN214310888U CN214310888U CN202022735288.0U CN202022735288U CN214310888U CN 214310888 U CN214310888 U CN 214310888U CN 202022735288 U CN202022735288 U CN 202022735288U CN 214310888 U CN214310888 U CN 214310888U
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Abstract
A device for measuring the peripheral convergence and vault settlement of a tunnel comprises a reflecting device and a laser emitting device, wherein the reflecting device is as follows: the reflecting plate is arranged on an expansion bolt through a connecting rod, and the expansion bolt is arranged on the inner wall of the tunnel; the laser emitting device is as follows: one side of the protection box is fixed on a road surface, an angle adjusting device is arranged in the protection box, a laser ranging sensor is arranged at the central position of the angle adjusting device, a display screen is arranged at the lower part in the protection box and is electrically connected with the laser ranging sensor, and a protection box cover is arranged at the opposite side of the protection box; the utility model discloses use the accurate distance of measuring the reflecting plate of laser rangefinder sensor, the reflecting plate passes through expansion bolts fixed, has avoided not hard up because of the trip in the construction, and factors such as temperature influence and bad construction environment arouse the coarse problem of measured value, can popularize and apply to measure the peripheral convergence of tunnel and vault subside technical field.
Description
Technical Field
The utility model belongs to the technical field of tunnel convergence and settlement measuring device or equipment, concretely relates to a device for measuring peripheral convergence of tunnel and vault subside.
Background
In the tunnel construction process, surrounding rock stress redistribution is caused by mountain excavation, and surrounding rocks around the tunnel deform, namely vault settlement, surrounding convergence and the like occur. In order to ensure the safety of tunnel construction and operation, various instruments are needed to monitor and measure the surrounding rocks and the supporting structure in the construction process so as to observe the stability and the supporting condition of the tunnel. If the surrounding rock or support exceeds a value within a safe range, further measures are required to limit the deformation. On one hand, the operation steps are complex and tedious, the measurement requires large manpower, and the complex construction environment has potential safety hazards; on the other hand, the field conditions have adverse effects, such as loosening of the anchored hooks leading to inaccurate peripheral convergence measurement, and the limitation of field space is not favorable for determining the horizontal reference point to influence the measurement of dome settlement.
Based on the above situation, it is necessary to design a device for measuring the convergence of the periphery and the vault settlement of a tunnel to solve the problems in the prior art.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide a reasonable in design, simple structure, accurate, the low cost's of measured data device that is used for measuring peripheral convergence of tunnel and vault subside.
The technical scheme for solving the technical problems is as follows: the device comprises a reflecting device and a laser emitting device, wherein the reflecting device is fixed on the inner wall of the tunnel, and the laser emitting device is fixed at the center of the road surface in the width direction of the tunnel;
the reflection device is as follows: the reflecting plate is arranged on an expansion bolt through a connecting rod, and the expansion bolt is arranged on the inner wall of the tunnel;
the laser emitting device is as follows: on guard box one side was fixed in the road surface, the inside angle adjusting device that is provided with of guard box, angle adjusting device central point put and are provided with laser ranging sensor, and the lower part is provided with the display screen in the guard box, and the display screen is connected with laser ranging sensor electricity, and the relative one side of guard box is provided with the protection case lid.
The utility model discloses a protection incasement portion is provided with the bubble spirit level.
The utility model discloses an outside four corners of guard box is provided with the fixed plate, is provided with the through-hole on the fixed plate.
The utility model discloses a hinge between reflecting plate and the expansion bolts.
The utility model discloses a reflect meter is provided with 3 groups, and 1 group reflect meter sets up in the tunnel vault, and 2 group reflect meter symmetries set up in tunnel hunch waist department in addition.
The utility model discloses a contained angle theta between the reflect meter of tunnel vault and the peripheral reflect meter in tunnel is 45.
Compared with the prior art, the utility model has the following advantages;
1. the utility model discloses simple structure, easy to operate can reduce the input of manpower in a large number to practice thrift the cost.
2. The utility model discloses use the accurate distance of measuring the reflecting plate of laser rangefinder sensor, the reflecting plate passes through expansion bolts fixed, has avoided not hard up because of the trip in the construction, and factors such as temperature influence and bad construction environment arouse the coarse problem of measured value.
3. The utility model discloses can survey the displacement volume of controlling hunch waist (or side wall) respectively, when observing that one side wall warp great, can take special measures, and the measured value that adopts traditional mode to obtain can not embody this result.
Drawings
Fig. 1 is a schematic structural diagram of the laser emitting device of the present invention.
Fig. 2 is a schematic structural diagram of the reflecting device of the present invention.
Fig. 3 is a schematic structural view of the expansion bolt 2 of fig. 2.
Fig. 4 is a schematic structural view of the reflection plate 1 in fig. 2.
Fig. 5 is a distance measuring schematic diagram of the present invention.
In the figure: 1. a reflective plate; 2. an expansion bolt; 3. a connecting rod; 4. a protection box; 5. a fixing plate; 6. a bubble level; 7. a laser ranging sensor; 8. an angle adjusting device; 9. a display screen; 10. and a box cover is protected.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the present invention is not limited to these examples.
Example 1
In fig. 1 ~ 4, the utility model relates to a device for measuring peripheral convergence of tunnel and vault subside comprises reflect meter and laser emitter, reflect meter is fixed in on the tunnel inner wall, laser emitter is fixed in tunnel width direction ascending road surface central point and puts, reflect meter is provided with 3 groups in this embodiment, 1 reflect meter of group sets up in the tunnel vault, 2 reflect meter symmetries of group set up in tunnel bow department in addition, contained angle theta between the reflect meter of tunnel vault and the peripheral reflect meter of tunnel is 45, contained angle theta is measured and is confirmed in the practical application.
The reflecting device by reflecting plate 1, expansion bolts 2, connecting rod 3 connect and constitute, reflecting plate 1 is the rectangle structure, the lower part of rectangle structure is provided with two connecting plates perpendicularly, connecting plate central point puts and is provided with the through-hole, 2 one ends of expansion bolts set up on the tunnel inner wall, other end parallel arrangement has the connecting plate, connecting plate central point puts and processes there is the through-hole, reflecting plate 1 and expansion bolts 2 are connected through installing connecting rod 3 in the through-hole, it is articulated between reflecting plate 1 and the expansion bolts 2, during the measurement, rotate reflecting plate 1 to the laser vertically position and fixed with laser range finding sensor 7 outgoing.
The laser emitting device is formed by connecting a protection box 4, a fixing plate 5, a bubble level meter 6, a laser ranging sensor 7, an angle adjusting device 8, a display screen 9 and a protection box cover 10, wherein the fixing plate 5 is welded at four corners outside one side of the protection box 4, a through hole is processed on the fixing plate 5, the protection box 4 is fixed on the road surface through a threaded fastener arranged in the through hole, the angle adjusting device 8 is arranged inside the protection box 4, the laser ranging sensor 7 is arranged at the central position of the angle adjusting device 8, the angle adjusting device 8 can rotate to adjust the angle so that the light emitted by the laser ranging sensor 7 irradiates the reflecting plate 1, the display screen 9 is arranged at the lower part inside the protection box 4, the display screen 9 is electrically connected with the laser ranging sensor 7, the display screen 9 displays the distance from the laser emitted by the laser ranging sensor 7 to the reflecting plate 1, the protection box cover 10 is arranged at one side, which is opposite to the protection box 4, through a hinge, bubble level meter 6 is installed to guard box 4 internally mounted, and bubble level meter 6 guarantees guard box 4 horizontal installation on subaerial.
As can be seen from fig. 5, the steps of measuring and calculating the tunnel peripheral convergence and the vault settlement by using the above device are as follows:
1) when the laser irradiates the reflecting plate 1 at the D point, namely the vault, the laser is reflected back, the distance is read from the display screen 9, the average value is repeatedly obtained for a plurality of times, and the distance l between the AD two points is calculatedAD。
2) By operating the angle adjusting device 8, the laser is irradiated to the reflecting plate 1 at the point B, and the distance l between the point AB and the point AB is obtained in the same wayABAverage value, angle theta between vault D point and peripheral B point is fixed, and l is calculatedBE＝lABSin θ; repeating the steps to obtainCETo find out lBC＝lBE+lCE。
3) According to the tunnelMonitoring measurement requirements, and repeating the steps 1) and 2) at intervals to obtain l'ADAnd l'BC. Then Δ l1＝lAD-l’ADAs value of the crown settlement deformation of the tunnel,. DELTA.l2＝lBC-l’BCAnd the convergence deformation value of the periphery of the tunnel is obtained.
Claims (6)
1. A device for measuring tunnel perimeter convergence and vault settlement, characterized by: the device comprises a reflecting device and a laser emitting device, wherein the reflecting device is fixed on the inner wall of the tunnel, and the laser emitting device is fixed at the center of the road surface in the width direction of the tunnel;
the reflection device is as follows: the reflecting plate (1) is arranged on the expansion bolt (2) through the connecting rod (3), and the expansion bolt (2) is arranged on the inner wall of the tunnel;
the laser emitting device is as follows: on guard box (4) one side was fixed in the road surface, inside angle adjusting device (8) of being provided with of guard box (4), angle adjusting device (8) central point put and are provided with laser range finding sensor (7), and the lower part is provided with display screen (9) in guard box (4), and display screen (9) are connected with laser range finding sensor (7) electricity, and the relative one side of guard box (4) is provided with protection case lid (10).
2. The apparatus for measuring tunnel perimeter convergence and vault settlement of claim 1 wherein: and a bubble level meter (6) is arranged in the protection box (4).
3. The apparatus for measuring tunnel perimeter convergence and vault settlement of claim 1 wherein: the protective box is characterized in that fixing plates (5) are arranged at four outer corners of the protective box (4), and through holes are formed in the fixing plates (5).
4. The apparatus for measuring tunnel perimeter convergence and vault settlement of claim 1 wherein: the reflecting plate (1) is hinged with the expansion bolt (2).
5. The apparatus for measuring tunnel perimeter convergence and vault settlement of claim 1 wherein: the reflection device be provided with 3 groups, 1 group of reflection device sets up in the tunnel vault, 2 groups of reflection device symmetries set up in tunnel bow-tie in addition.
6. The apparatus for measuring tunnel perimeter convergence and vault settlement of claim 5 wherein: the included angle theta between the reflecting device of the tunnel vault and the reflecting device on the periphery of the tunnel is 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022735288.0U CN214310888U (en) | 2020-11-23 | 2020-11-23 | Device for measuring tunnel peripheral convergence and vault settlement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022735288.0U CN214310888U (en) | 2020-11-23 | 2020-11-23 | Device for measuring tunnel peripheral convergence and vault settlement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214310888U true CN214310888U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022735288.0U Active CN214310888U (en) | 2020-11-23 | 2020-11-23 | Device for measuring tunnel peripheral convergence and vault settlement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214310888U (en) |
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2020
- 2020-11-23 CN CN202022735288.0U patent/CN214310888U/en active Active
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Address after: 510080 No. 146, huangbian North Road, Baiyun District, Guangzhou, Guangdong Patentee after: Guangdong transportation planning and Design Institute Group Co.,Ltd. Address before: 510080 No. 146, huangbian North Road, Baiyun District, Guangzhou, Guangdong Patentee before: GUANGDONG PROVINCE COMMUNICATIONS PLANNING & DESIGN INSTITUTE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |