CN214173423U - Tunnel safety on-line monitoring system - Google Patents
Tunnel safety on-line monitoring system Download PDFInfo
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- CN214173423U CN214173423U CN202021824979.1U CN202021824979U CN214173423U CN 214173423 U CN214173423 U CN 214173423U CN 202021824979 U CN202021824979 U CN 202021824979U CN 214173423 U CN214173423 U CN 214173423U
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Abstract
A tunnel safety on-line monitoring system comprises a central control and data processing system and a sensor system, wherein the sensor system is connected with the central control and data processing system and is mainly responsible for data acquisition and monitoring; the sensor system comprises a linear displacement sensor, a strain sensor, an anchor force sensor, an inclinometer and a soil pressure sensor, and through monitoring and evaluating the structural condition parameters of the tunnel, the sensor system sends out early warning signals for the tunnel under special climates and traffic conditions or when the operation condition of the tunnel is abnormal and serious, and can provide basis and guidance for maintenance and management decisions of the tunnel.
Description
Technical Field
The utility model belongs to the technical field of environmental monitoring, concretely relates to tunnel safety on-line monitoring system.
Background
In the process of building and using the tunnel, due to the erosion of environment and harmful substances, the effects of vehicles, earthquakes, fatigue, human factors and the like and the continuous degradation of the performance of the material, various parts of the structure are damaged and degraded to different degrees before the design life is not reached. If the damage can not be detected and maintained in time, the driving safety is affected and the service life of the tunnel is shortened, and the tunnel is suddenly damaged and collapsed. However, the conventional tunnel detection depends on the experience of managers and technicians to a great extent, a scientific system method is lacked, the conditions of the tunnel, particularly a large tunnel, are often lacked of comprehensive understanding and understanding, and information cannot be fed back in time. If the damage estimation on the tunnel is insufficient, the best maintenance time is probably lost, the tunnel damage process is accelerated, and the service life of the tunnel is shortened.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a tunnel safety on-line monitoring system.
The utility model discloses a following technical scheme can realize.
The utility model provides a tunnel safety on-line monitoring system, including well accuse and data processing system and sensor system, the sensor system is connected with well accuse and data processing system, mainly is responsible for data acquisition and monitoring, well accuse and data processing system carry out sensing data processing and analysis and graphical display;
the sensor system comprises a linear displacement sensor, a strain gauge sensor, an anchor force sensor, an inclinometer and a soil pressure sensor;
the linear displacement sensors are arranged on the upper part and two sides of the inner wall of the tunnel; the strain sensor is arranged between the outer wall and the inner wall of the tunnel; the anchor force sensors are arranged on the upper part and two sides of the inner wall of the tunnel and penetrate through the outer wall of the tunnel to soil on the outer side of the outer wall; the inclinometers are arranged in the soil on two sides of the tunnel and symmetrically arranged; the soil pressure sensor is arranged in the soil on the upper part and two sides of the outer wall of the tunnel.
Further, the sensor system further comprises an accelerometer, and the accelerometer is installed in the tunnel and used for detecting deformation vibration acceleration of the tunnel.
Furthermore, the linear displacement sensors are uniformly distributed on the upper part and two sides of the inner wall of the whole tunnel and are connected with the central control and data processing system.
Furthermore, the strain sensors are uniformly distributed between the outer wall and the inner wall of the whole tunnel and are connected with the central control and data processing system.
Furthermore, the anchor force sensors are uniformly distributed on the upper part and two sides of the inner wall of the whole tunnel and are connected with the central control and data processing system.
Furthermore, the inclinometers are uniformly distributed in soil on two sides of the whole tunnel and connected with the central control and data processing system.
Furthermore, the soil pressure sensors are uniformly distributed in the soil on the upper part and two sides of the outer wall of the whole tunnel and are connected with the central control and data processing system.
The system further comprises a router, wherein the router communicates with the sensor system by using a wireless channel, is connected with the central control and data processing system by a cable, and transmits data information related to the sensor system to the central control and data processing system.
Further, the sensor system further comprises a temperature sensor, a humidity sensor and an air speed sensor, wherein the temperature sensor, the humidity sensor and the air speed sensor are arranged around the tunnel and are connected with the central control and data processing system.
The beneficial effects of the utility model reside in that: the utility model provides a tunnel safety structure monitoring system is through the control and the aassessment to tunnel structure situation parameter, sends early warning signal for the tunnel under special weather, traffic conditions or tunnel operation situation when unusual serious, can provide the foundation and guide for the maintenance and the management decision-making in tunnel.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, an online tunnel safety monitoring system includes a central control and data processing system 8 and a sensor system, the sensor system is connected to the central control and data processing system 8 and mainly responsible for data acquisition and monitoring, and the central control and data processing system 8 performs sensing data processing and analysis and graphic display;
the sensor system comprises a linear displacement sensor 1, a strain gauge sensor 2, an anchor force sensor 3, an inclinometer and a soil pressure sensor 4;
wherein, the linear displacement sensor 1 is arranged at the upper part and two sides of the inner wall of the tunnel; the strain sensor 2 is arranged between the outer wall and the inner wall of the tunnel; the anchor force sensors 3 are arranged on the upper part and two sides of the inner wall of the tunnel and penetrate through the outer wall of the tunnel to soil on the outer side of the outer wall; the inclinometers are arranged in the soil on two sides of the tunnel and symmetrically arranged; the soil pressure sensor 4 is installed in the soil on the upper portion and the two sides of the outer wall of the tunnel.
Further, the sensor system further comprises an accelerometer, and the accelerometer is installed in the tunnel and used for detecting deformation vibration acceleration of the tunnel.
Furthermore, the linear displacement sensors 1 are uniformly distributed on the upper part and two sides of the inner wall of the whole tunnel and are connected with the central control and data processing system 8.
Furthermore, strain gauge sensors 2 are a plurality of, and the equipartition is between the outer wall and the inner wall in whole tunnel, all is connected with well accuse and data processing system 8.
Furthermore, a plurality of anchor force sensors 3 are uniformly distributed on the upper part and two sides of the inner wall of the whole tunnel and are connected with a central control and data processing system 8.
Furthermore, the inclinometers are uniformly distributed in the soil on two sides of the whole tunnel and connected with the central control and data processing system 8.
Furthermore, a plurality of soil pressure sensors 4 are uniformly distributed in the soil on the upper part and two sides of the outer wall of the whole tunnel and are connected with a central control and data processing system 8.
Further, the system also comprises a router which communicates with the sensor system by using a wireless channel, is connected with the central control and data processing system 8 by a cable and transmits data information related to the sensor system to the central control and data processing system 8.
Further, the sensor system further comprises a temperature sensor, a humidity sensor and an air speed sensor, wherein the temperature sensor, the humidity sensor and the air speed sensor are arranged around the tunnel and are connected with the central control and data processing system 8.
During specific implementation, the system can realize real-time online monitoring of a plurality of safety parameters of the tunnel through cooperation of a plurality of sensors, and the parameters comprise load monitoring, deformation monitoring, strain monitoring and vibration monitoring. The monitoring items comprise temperature, humidity, wind speed and wind direction around the tunnel, vehicle load, structural settlement, inclination, deformation, strain and the like.
The sensors may include linear displacement sensors 1, accelerometers, strain gauge sensors 2, anchor force sensors 3, inclinometers, soil pressure sensors 4, and the like.
The central control and data processing system 8 is used for collecting and processing data about the detected object item output by the placed sensor from the network, and supports data exchange in a standard open interface.
Temperature, humidity, wind speed, wind direction data, etc. may also be provided by the microclimate station.
The inclinometer is specially used for detecting deformation deviation in geometric building design and building construction and work and is arranged in a core block of a monitoring system. So that the sensor network of the configuration structure can detect the inclination angle and display the data on the interface installation project. The inclinometer is implemented in two ways for network association or wireless channel association.
The multi-tap string allows multiple vibrating wire pressure gauges to be connected to a single cable to facilitate installation of multiple pressure sensors throughout the process. A single core cable is used to prevent vertical voids. Polyurethane boots, kevlar, non-tensile cables to ensure complete water blocking and reduce leakage. The common conductor is used to maximize the reliability of each sensor independently.
Vibrating wire gauges are used to provide reliable readings of high accuracy over long periods of time under severe geotechnical conditions. The frequency output of the vibrating wire device of the electric pressure gauge of the vibrating wire pressure gauge is not interfered by external electric noise, and the vibrating wire device can work under the wet cloth wire environment of geotechnical engineering.
The stress sensor is made of a full-bridge circuit sensitive element on a polyimide substrate, and the stress on the structure is measured based on the impedance change degree of the bridge after calibration.
The interface module is designed to operate as a strain gauge sensor 2. When the circuit is a microprocessor unit with a dual-channel mode and information processing, the information processing of a dual-channel scheme of the circuit module and the microprocessor unit is executed; allowing simultaneous attachment of a two-axis strain gauge sensor or two single-axis strain gauges. The scheme adopted provides high noise immunity, reduces the stability problem brought to the output signal by time length and temperature change so as to transmit the output signal to the remote equipment to collect and process information.
The design features of the strain gauge sensor allow it to be easily integrated into the weighing system ensuring high reliability of incorporation. The sensor may operate in any environment. The compressive strain gauge sensor 2 (thin film) covers a wide range, with loads from hundreds of kilograms up to as high as 50 tons.
The wind speed sensor measures the temperature and the wind speed and the wind direction through an ultrasonic technology and has no moving part. Each sensor has a digital serial number that identifies the individual units in the network. These sensors are connected by cables to the central control and data processing system 8.
The router is used for controlling communication with the sensor of the monitoring system, and data communication is carried out by using a wireless channel. The router is used for information acquisition and processing and is arranged in a core block of the monitoring system, and the router is connected with the central control and data processing system 8 through a cable.
The soil pressure sensor 4 is designed to measure the stress acting on a plane. A stress sensor: the stress gauge is designed to measure tensile compressive strain over time as part of automated monitoring. The stress sensor is made of a full bridge circuit sensitive element on a polyimide substrate, and the impedance change degree of the full bridge is calibrated to measure the stress on the structure.
Vertical borehole inclinometer 5: vertical inclinometer systems can measure lateral movement of rocks and soil or man-made structures such as piles, retaining walls in response to the need for continuous detection. The inclinometer includes one or more inclination sensors housed in a 31.75mm (1.25 inch) diameter waterproof stainless steel housing. Each sensor and wheel assembly was separated from under a stainless steel bar. The length of the rod is adjustable to accommodate the meter, and the sensors can be focused on the desired area of motion. Wheel assembly size was 70 mm (2.75 inches) or 85 mm (3.34 inches) outside diameter inclinometer. Each sensor can be automatically detected and read remotely after finding motion and inclinometer deformation. If necessary, an alarm may be triggered when the motion reaches a critical speed or amplitude.
The anchor force sensor 3 is mainly used for a weighing container and a water tank.
The high reliability of incorporation is ensured by the design features of the strain gauge sensor which allows it to be easily integrated into the weighing system. The sensor may operate in any environment. The compressive strain gauge sensor 2 (thin film) covers a wide range, with loads from hundreds of kilograms up to as high as 50 tons.
An inclinometer: the inclinometer is specially used for detecting deformation deviation in geometric building design and building construction and work and is arranged in a core block of a monitoring system. So that the sensor network of the configuration structure can detect the inclination angle and display the data on the interface installation project. The inclinometer is implemented in two ways for network association or wireless channel association.
An accelerometer: the accelerometer is used for deformation vibration acceleration scales of houses and buildings and executes the work of a base station monitoring system. Providing high stability target parameters over a comparable temperature humidity range.
Soil pressure sensor 4: the soil pressure sensor 4 is designed to measure the stress acting on a plane. The stainless steel plate is formed by welding two circular stainless steel plates together around the periphery. The annular space between the plates is filled with the required glycol. Each unit is connected to a transducer through stainless steel tubing to form a closed hydraulic system. The stress is then converted into a signal that can be remotely read by various portable readers or data loggers. Different types of sensors can be used depending on the field requirements.
Linear displacement sensor 1: the primary purpose of the sensor is to control the relative displacement between various structural elements, including hydraulic structures such as dams, steel and concrete structures, crack opening control on portions of the wall. The sensor is designed to be installed indoors/outdoors; the power for the sensors is supplied by an external power supply from a central monitoring system power line or from a 24 volt dc voltage onboard. The maximum distance between the sensor and the base station should not exceed 150 meters. If this range is exceeded, 24 volts or an external supply voltage repeater C-SLP-x is required.
A router (modem) router is used for sensor control communication with a monitoring system, using a wireless channel for data communication. The router is used for information acquisition and processing and is arranged in a core block of the monitoring system, and the router is connected with the central unit through a cable.
The temperature and humidity sensor, the humidity sensor is used for measuring the relative humidity of the place, and is arranged in the core block of the monitoring system, so that reliable and accurate measurement data of the relative humidity and the ambient temperature in the long-term place where the sensor is installed is provided, and the measurement is carried out without the need of preventive and repair work. The sensor-controlled sensing element is supplied by a micro-filter to provide protection against external contamination.
A wind speed sensor: the wind speed sensor is connected, and the temperature, the wind speed and the wind direction are measured through an ultrasonic technology. Each sensor has a digital serial number that identifies the individual units in the network. These sensors are connected to the central unit by cables. The sensor network connects the central unit of the system, CMC-100-GE, for storage and displays the results as a graph to show each sensor on site. The central control and data processing system 8 can be connected to a remote monitoring service via ethernet or GPRS, using a potential free input/output feature automation system.
Claims (9)
1. The utility model provides a tunnel safety on-line monitoring system which characterized in that: the system comprises a central control and data processing system and a sensor system, wherein the sensor system is connected with the central control and data processing system and is responsible for data acquisition and monitoring;
the sensor system comprises a linear displacement sensor, a strain gauge sensor, an anchor force sensor, an inclinometer and a soil pressure sensor;
the linear displacement sensors are arranged on the upper part and two sides of the inner wall of the tunnel; the strain sensor is arranged between the outer wall and the inner wall of the tunnel; the anchor force sensors are arranged on the upper part and two sides of the inner wall of the tunnel and penetrate through the outer wall of the tunnel to soil on the outer side of the outer wall; the inclinometers are arranged in the soil on two sides of the tunnel and symmetrically arranged; the soil pressure sensor is arranged in the soil on the upper part and two sides of the outer wall of the tunnel.
2. The tunnel safety on-line monitoring system of claim 1, characterized in that: the sensor system further comprises an accelerometer, wherein the accelerometer is installed in the tunnel and used for detecting the deformation vibration acceleration of the tunnel.
3. The tunnel safety on-line monitoring system of claim 1, characterized in that: the linear displacement sensors are uniformly distributed on the upper part and two sides of the inner wall of the whole tunnel and are connected with the central control and data processing system.
4. The tunnel safety on-line monitoring system of claim 1, characterized in that: the strain sensors are uniformly distributed between the outer wall and the inner wall of the whole tunnel and are connected with the central control and data processing system.
5. The tunnel safety on-line monitoring system of claim 1, characterized in that: the anchor force sensors are uniformly distributed on the upper part and two sides of the inner wall of the whole tunnel and are connected with the central control and data processing system.
6. The tunnel safety on-line monitoring system of claim 1, characterized in that: the inclinometers are uniformly distributed in the soil on two sides of the whole tunnel and connected with the central control and data processing system.
7. The tunnel safety on-line monitoring system of claim 1, characterized in that: the soil pressure sensors are uniformly distributed in the soil on the upper part and two sides of the outer wall of the whole tunnel and are connected with the central control and data processing system.
8. The tunnel safety on-line monitoring system of claim 1, characterized in that: the router is communicated with the sensor system by using a wireless channel, is connected with the central control and data processing system by a cable, and transmits data information related to the sensor system to the central control and data processing system.
9. The tunnel safety on-line monitoring system of claim 1, characterized in that: the sensor system further comprises a temperature sensor, a humidity sensor and a wind speed sensor, wherein the temperature sensor, the humidity sensor and the wind speed sensor are arranged around the tunnel and are connected with the central control and data processing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021824979.1U CN214173423U (en) | 2020-08-27 | 2020-08-27 | Tunnel safety on-line monitoring system |
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| CN202021824979.1U CN214173423U (en) | 2020-08-27 | 2020-08-27 | Tunnel safety on-line monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914906A (en) * | 2021-11-11 | 2022-01-11 | 中国铁建大桥工程局集团有限公司 | Supporting structure for preventing tunnel collapse |
| CN115876257A (en) * | 2023-02-10 | 2023-03-31 | 南京城建隧桥智慧管理有限公司 | Dynamic determination method for early warning value of tunnel structure health monitoring sensor |
-
2020
- 2020-08-27 CN CN202021824979.1U patent/CN214173423U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914906A (en) * | 2021-11-11 | 2022-01-11 | 中国铁建大桥工程局集团有限公司 | Supporting structure for preventing tunnel collapse |
| CN115876257A (en) * | 2023-02-10 | 2023-03-31 | 南京城建隧桥智慧管理有限公司 | Dynamic determination method for early warning value of tunnel structure health monitoring sensor |
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