CN115031684B - Tunnel settlement alarm system and method based on lens group - Google Patents
Tunnel settlement alarm system and method based on lens group Download PDFInfo
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- CN115031684B CN115031684B CN202210442229.5A CN202210442229A CN115031684B CN 115031684 B CN115031684 B CN 115031684B CN 202210442229 A CN202210442229 A CN 202210442229A CN 115031684 B CN115031684 B CN 115031684B
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- lens
- settlement
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Communication System (AREA)
Abstract
The invention relates to a tunnel settlement alarm system and a method based on a lens group, wherein the tunnel settlement alarm system is arranged on the inner wall of a tunnel and is used for monitoring tunnel settlement and comprises the following steps: a transmitting device for transmitting the laser signal and the wireless signal at intervals; the lens group comprises a concave lens and a convex lens which are adjacently arranged, and the laser signal passes through the concave lens and the convex lens; a receiving device for receiving the laser signal and the wireless signal; and calibrating and recording the position of the lens group by the total station. According to the technical scheme, the transmitting device, the lens group and the receiving device are sequentially arranged and installed, and the total station is used for calibrating and recording the position of the lens group for the first time. If the tunnel subsides, the receiving device cannot receive the laser signal, the receiving device alarms, the total station calibrates the position of the lens group for the second time, and the settlement amount is calculated. The tunnel settlement alarm system can monitor tunnel settlement in real time, calculate specific settlement amount and has good practicability.
Description
Technical Field
The invention relates to the technical field of tunnel settlement detection, in particular to a tunnel settlement alarm system and method based on a lens group.
Background
With the development of economy, more cities and areas are newly built with tunnels. Tunnels are commonly built in soft soil zones with complex geology, partial subway tunnels pass through urban downtown areas, and vehicle staff flow frequently. In practical engineering, different properties of the underlying soil layer longitudinally distributed along the tunnel can cause different degrees of disturbance, rebound quantity, consolidation and secondary consolidation settlement quantity, settlement rate, settlement reaching stabilization time and the like of the soil layer, so that the settlement of the tunnel can be caused. Due to engineering limitations, the ground above the tunnel is subjected to a large load, and sedimentation can also occur under the action of additional stress. And part of subway tunnels are also affected by adjacent peripheral construction, and the deep foundation pit excavation causes lateral displacement of the enclosure and the tunnel settlement caused by the bulge in the pit. The settlement of the tunnel can cause the tunnel to generate deflection deformation, further can cause tunnel lining cracks, the strength of a tunnel supporting structure is reduced, and the excessive settlement of the tunnel can cause serious problems such as water inflow, collapse and the like of a tunnel line, so that the safety of personnel and the social and economic development are endangered.
Traditional tunnel subsidence monitoring relies on artifical optical equipment such as periodic usage total powerstation to patrol and examine, can not monitor the tunnel subsidence in real time to unable accurate measurement tunnel's settlement volume, the practicality is relatively poor.
Disclosure of Invention
The invention aims to provide a tunnel settlement alarm system based on a lens group, which has the characteristics of monitoring tunnel settlement in real time and the like and has better applicability.
In order to achieve the above purpose, the invention adopts the following technical scheme:
tunnel subsidence alarm system based on lens group sets up on the inner wall of tunnel for monitor tunnel subsidence, include: a transmitting device for transmitting the laser signal and the wireless signal at intervals; the lens group comprises a concave lens and a convex lens which are adjacently arranged, and the laser signal passes through the concave lens and the convex lens; a receiving device for receiving the laser signal and the wireless signal; and calibrating and recording the position of the lens group by the total station.
Preferably, the concave lens and the convex lens are provided in plurality, and each concave lens and each convex lens are sequentially and adjacently arranged.
Preferably, the concave lens and the convex lens are sequentially arranged along the same straight line or sequentially arranged along a plurality of straight lines.
Preferably, the number of the concave lenses and the number of the convex lenses are the same.
Preferably, the lens group fixing device further comprises a fixing rod, wherein the fixing rod comprises a first rod and a second rod which are connected in a telescopic mode, the first rod is fixed with the inner wall of the tunnel, and the second rod is connected with the lens group in a rotating mode.
Preferably, the receiving device is electrically connected with the total station, the receiving device alarms, the total station secondarily calibrates the position of the lens group, and the settlement amount of the lens group is calculated.
Preferably, the device further comprises a power supply module, wherein the power supply module supplies power to the transmitting device and the receiving device.
The invention also provides a tunnel settlement alarm method based on the lens group, which comprises the tunnel settlement alarm system, and the tunnel settlement alarm method comprises the following steps:
firstly, sequentially installing a transmitting device, a lens group and a receiving device, calibrating the position of the lens group for the first time by a total station, and recording;
a second step, the transmitting device transmits a laser signal and a wireless signal, wherein the laser signal passes through the concave lens and the convex lens to the receiving device;
thirdly, if the receiving device receives the laser signal and the wireless signal, the receiving device does not alarm; if the receiving device only receives the wireless signal, the receiving device alarms, and the total station calibrates the position of the lens group for the second time and calculates the settlement of the lens group;
and step four, the receiving device uploads the alarm signal and the settlement amount to a system.
Compared with the prior art, the invention has the beneficial effects that:
according to the tunnel settlement alarm system based on the lens group, which is provided by the technical scheme, the lens group and the receiving device are sequentially arranged and installed, and the total station is used for calibrating and recording the position of the lens group for the first time. The lens group comprises a concave lens and a convex lens which are adjacently arranged, the transmitting device transmits laser signals and wireless signals, and the laser signals pass through the concave lens and the convex lens to the receiving device. If the tunnel subsides, the settlement of the concave lens and the convex lens at different positions is different, so that the laser signal cannot pass through the concave lens and the convex lens to the receiving device, the receiving device can only receive the wireless signal, the receiving device alarms at the moment, the total station calibrates the position of the lens group for the second time, and the settlement is calculated. The tunnel settlement alarm system can monitor tunnel settlement in real time, calculate specific settlement amount and has good practicability.
Drawings
Fig. 1 is a schematic diagram of a tunnel settlement alarm system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating divergence and convergence of laser signals according to an embodiment of the present invention.
1. A transmitting device; 11. a laser signal; 2. a lens group; 21. a concave lens; 22. a convex lens; 3. a receiving device; 4. a fixed rod; 41. a first lever; 42. a second rod.
Detailed Description
The invention will now be described in more detail with reference to the accompanying drawings, to which it should be noted that the description is given by way of illustration only and not by way of limitation. Various embodiments may be combined with one another to form further embodiments not shown in the following description.
Referring to fig. 1, in an embodiment of the present invention, a tunnel settlement alarm system based on a lens group is provided, including: a transmitting device 1, a lens group 2, a receiving device 3 and a fixing rod 4.
In a preferred embodiment, the transmitting device 1, the lens group 2 and the receiving device 3 are arranged in sequence on the inner wall of the tunnel, the lens group 2 being located between the transmitting device 1 and the receiving device 3.
The transmitting device 1 can transmit a laser signal 11 and a wireless signal, the receiving device 3 is a laser receiver, the laser signal 11 can pass through the lens group 2 to the receiving device 3, and the receiving device 3 receives the laser signal 11 and the wireless signal.
Of course, in other embodiments, the receiving device 3 may also be a CCD image sensor, and the laser signal 11 may pass through the lens group 2 to the CCD image sensor, where the CCD image sensor receives the laser signal 11 and converts the laser signal 11 into a digital signal, and the remaining devices are unchanged.
Specifically, the lens group 2 includes a concave lens 21 and a convex lens 22, and the concave lens 21 and the convex lens 22 are sequentially mounted adjacently at intervals, that is, the first mounted is the concave lens 21, and then sequentially mounted is the convex lens 22, the concave lens 21, the convex lens 22, and so on. Alternatively, the first lens may be a convex lens 22, and then a concave lens 21, a convex lens 22, a concave lens 21, and the like are sequentially mounted. The number of concave lenses 21 and convex lenses 22 needs to be the same.
The concave lens 21 may diverge the laser signal 11, and the convex lens 22 may converge the laser signal 11, so that the distance between adjacent concave lens 21 and convex lens 22 needs to be controlled, and when the tunnel is not settled, the laser signal 11 emitted by the emitting device 1 may reach the receiving device 3 through the lens group 2.
Note that the number and types of the concave lenses 21 and the convex lenses 22 are not limited. The number of concave lenses 21 and convex lenses 22 may be one, two, or the like each. The concave lens 21 may be concave on one side or concave on both sides, and the convex lens 22 may be convex on one side or convex on both sides, so long as it is ensured that the laser signal 11 can pass through the lens group 2 to the receiving device 3 when no settlement occurs in the tunnel.
Referring to fig. 2, the laser signal 11 emitted by the emitting device 1 includes a plurality of lasers each extending in a horizontal direction, and the laser signal 11 located in the middle can pass through the middle portions of the concave lens 21 and the convex lens 22 and move to the receiving device 3 in the horizontal direction. The rest of the laser signals 11 are first diverged by the first concave lens 21, moved to the convex lens 22 in a direction at an angle to the horizontal direction, then converged by the convex lens 22, moved to the second concave lens 21 in a direction at an angle to the horizontal direction, and the above-mentioned divergence and convergence actions are repeated, and the rest of the laser signals 11 can be moved to the receiving device 3.
It is conceivable that, if the tunnel is settled, since the concave lens 21 and the convex lens 22 are adjacently disposed at a distance, the settlement amounts occurring at the installation sites of the concave lens 21 and the convex lens 22 at different positions are also different, and therefore, when the settlement amounts are larger than the preset value, the laser signal 11 cannot reach the receiving device 3 after passing through the divergence and convergence of the concave lens 21 and the convex lens 22. The wireless signal is not affected by the ground, and the receiving device 3 can still receive the wireless signal even if the tunnel is settled. Therefore, the receiving device 3 can only receive the wireless signal at this time, but cannot receive the laser signal 11, and the receiving device 3 gives an alarm.
The transmitting device 1 can simultaneously transmit the laser signal 11 and the wireless signal, which has the advantages that: if the transmitting device 1 is damaged, the transmitting device 1 cannot transmit the laser signal 11 and the wireless signal, so that the receiving device 3 cannot receive the laser signal 11 and the wireless signal, and the receiving device 3 can send out information to remind a worker to repair the transmitting device, thereby preventing false alarm. If the transmitting device 1 can only transmit the laser signal 11, and if the transmitting device 1 is damaged, the receiving device 3 cannot receive the laser signal 11, and the receiving device 3 alarms, but the tunnel does not actually subside, so that the transmitting device 1 is damaged to cause false alarm, and the transmitting device 1 provided by the invention can prevent the occurrence of the situation.
In a preferred embodiment, the lens group 2 may be fixedly connected to the tunnel inner wall by a fixing rod 4. The number of the fixing bars 4 is the same as the sum of the numbers of the concave lenses 21 and the convex lenses 22, that is, one concave lens 21 or convex lens 22 corresponds to one fixing bar 4. The fixing rod 4 can be made of stainless steel, and the service life is long.
Specifically, the fixing rod 4 includes a first rod 41 and a second rod 42 that are telescopically connected, one end of the first rod 41 is fixedly connected with the inner wall of the tunnel, and one end of the second rod 42 is rotatably connected with the concave lens 21 or the convex lens 22.
In practical installation, the inner wall of the tunnel is not necessarily flat, so that the telescopic fixing rod 4 can ensure that the concave lens 21 and the convex lens 22 are positioned at the same height, and the laser signal 11 can pass through the concave lens 21 and the convex lens 22 to reach the receiving device 3.
It should be noted that, one end of the second rod 42 is rotatably connected to the concave lens 21 or the convex lens 22, so that each concave lens 21 and each convex lens 22 may not be disposed on the same straight line, and only the concave lens 21 or the convex lens 22 needs to be rotated when in use, so that the laser signal 11 can sequentially pass through the concave lens 21 and the convex lens 22 to reach the receiving device 3. Therefore, the concave lens 21 and the convex lens 22 which are not positioned on the same straight line can monitor the settlement of the tunnel which is not positioned on the straight line, the detection range is wider, and meanwhile, the selection range of the installation position of the receiving device 3 is larger, thereby being beneficial to the on-site installation.
In a preferred embodiment, both the transmitting device 1 and the receiving device 3 can be provided with power supply modules, and in order to increase the service time of the power supply modules, the transmitting device 1 can adopt a mode of interval transmission, and the specific interval time can be determined according to practical situations, so that the number of manual maintenance is reduced.
In a preferred embodiment, the total station can perform position calibration and registration of the lens group 2. Specifically, when the lens group 2 is installed, the total station can perform the first position calibration and recording for all the concave lenses 21 and the convex lenses 22. After the receiving device 3 alarms, the total station performs a second position calibration on all the concave lenses 21 and the convex lenses 22, and compares the second position calibration with the first position calibration, so as to find that a specific concave lens 21 or a specific convex lens 22 is settled at the installation position, calculate a specific settlement amount, and finally the receiving device 3 uploads the settlement amount and an alarm signal to a system or a staff through wireless, optical fiber, ethernet, a field bus and the like.
In conclusion, the tunnel settlement alarm system provided by the invention has the advantages of simple structure, less wiring, convenience in installation, lower subsequent maintenance cost and better popularization significance. And the tunnel settlement alarm system can monitor tunnel settlement in real time, so that danger is greatly prevented, and better practicability is realized.
The invention also provides a tunnel settlement alarm method based on the lens group, which comprises the following steps:
firstly, sequentially installing a transmitting device 1, a lens group 2 and a receiving device 3, calibrating and recording the position of the lens group 2 for the first time by a total station;
a second step in which the transmitting device 1 transmits a laser signal 1 and a wireless signal, the laser signal 11 passing through the concave lens 21 and the convex lens 22 to the receiving device 3;
thirdly, if the receiving device 3 receives the laser signal 11 and the wireless signal, the receiving device 3 does not alarm; if the receiving device 3 only receives the wireless signal, the receiving device 3 alarms, and the total station calibrates the position of the lens group 2 for the second time and calculates the settlement amount of the lens group 2;
and step four, the receiving device 3 uploads the alarm signal and the settlement amount to a system.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (7)
1. Tunnel subsides alarm system based on lens group sets up on the inner wall of tunnel for monitor tunnel subsides, its characterized in that includes:
a transmitting device (1) for transmitting a laser signal (11) and a wireless signal at intervals;
a lens group (2) including a concave lens (21) and a convex lens (22) disposed adjacently, and the laser signal (11) passes through the concave lens (21) and the convex lens (22);
a receiving device (3) for receiving the laser signal (11) and the wireless signal;
the total station is used for calibrating and recording the position of the lens group (2);
the receiving device (3) is electrically connected with the total station, and if the receiving device (3) receives the laser signal (11) and the wireless signal, the receiving device (3) does not alarm; and if the receiving device (3) only receives the wireless signal, the receiving device (3) alarms, and the total station secondarily calibrates the position of the lens group (2) and calculates the settlement amount of the lens group (2).
2. Tunnel settlement warning system according to claim 1, characterized in that the number of the concave lenses (21) and the convex lenses (22) is plural, and that the concave lenses (21) and the convex lenses (22) are arranged adjacently in order.
3. Tunnel settlement warning system according to claim 1, characterized in that the concave lens (21) and the convex lens (22) are arranged in sequence along the same straight line or arranged in sequence along a plurality of straight lines.
4. Tunnel settlement warning system according to claim 1, characterized in that the number of concave lenses (21) and convex lenses (22) is the same.
5. Tunnel settlement warning system according to claim 1, characterized in that it further comprises a fixed rod (4), the fixed rod (4) comprising a first rod (41) and a second rod (42) telescopically connected, the first rod (41) being fixed to the tunnel inner wall and the second rod (42) being rotatably connected to the lens group (2).
6. Tunnel settlement warning system according to claim 1, characterized in that it further comprises a power supply module which supplies the transmitting device (1) and the receiving device (3).
7. A tunnel settlement warning method based on a lens group, characterized by comprising the tunnel settlement warning system according to any one of claims 1 to 6, the tunnel settlement warning method comprising the steps of:
firstly, sequentially installing a transmitting device (1), a lens group (2) and a receiving device (3), and calibrating and recording the position of the lens group (2) for the first time by a total station;
a second step, the transmitting device (1) transmits a laser signal (11) and a wireless signal, wherein the laser signal (11) passes through the concave lens (21) and the convex lens (22) to the receiving device (3);
thirdly, if the receiving device (3) receives the laser signal (11) and the wireless signal, the receiving device (3) does not alarm; if the receiving device (3) only receives the wireless signal, the receiving device (3) alarms, and the total station calibrates the position of the lens group (2) for the second time and calculates the settlement amount of the lens group (2);
and step four, the receiving device (3) uploads the alarm signal and the settlement amount to a system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442229.5A CN115031684B (en) | 2022-04-25 | 2022-04-25 | Tunnel settlement alarm system and method based on lens group |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210442229.5A CN115031684B (en) | 2022-04-25 | 2022-04-25 | Tunnel settlement alarm system and method based on lens group |
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| CN115031684A CN115031684A (en) | 2022-09-09 |
| CN115031684B true CN115031684B (en) | 2024-04-09 |
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| CN108387211A (en) * | 2018-02-22 | 2018-08-10 | 广州市城市建设工程监理公司 | Supporting vault sinking monitoring device and method |
| CN111220121A (en) * | 2019-11-20 | 2020-06-02 | 南京航空航天大学 | Railway roadbed settlement multipoint monitoring device and method based on LED imaging |
| CN210893096U (en) * | 2019-12-29 | 2020-06-30 | 辽宁科技学院 | Tunnel vault monitoring devices that sinks |
| CN214621146U (en) * | 2021-03-25 | 2021-11-05 | 西安建工绿色建筑安装有限公司 | Building slope warning device for building monitoring |
| CN112985353A (en) * | 2021-05-20 | 2021-06-18 | 浙江图维科技股份有限公司 | Cable anti-settlement displacement monitoring method and system based on electromagnetic detection |
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