CN113280788A - Roadbed settlement monitoring device and system - Google Patents
Roadbed settlement monitoring device and system Download PDFInfo
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- CN113280788A CN113280788A CN202110608767.2A CN202110608767A CN113280788A CN 113280788 A CN113280788 A CN 113280788A CN 202110608767 A CN202110608767 A CN 202110608767A CN 113280788 A CN113280788 A CN 113280788A
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The roadbed settlement monitoring device and the roadbed settlement monitoring system comprise a processor, a roadbed settlement monitoring module and a roadbed pressure and displacement testing module, wherein the roadbed settlement monitoring module comprises a first standard rod, a second standard rod and a plurality of measuring rods; the first standard rod and the second standard rod are used for emitting laser signals, the measuring rod receives the laser signals to generate receiving position information of the laser signals, and the receiving position information is sent to the processor; the settlement or the deflection of road bed is confirmed to the laser position information of treater according to standard pole and measuring stick, can carry out settlement monitoring to road beds such as loess accurately, for road planning design, maintenance etc. provide corresponding reference data, can set up in coordination that road bed settlement monitoring device and road have speed sensor, road sign etc. solve power supply, data transmission scheduling problem reduce cost simultaneously, and in addition, the monitoring data that obtain can provide technical parameter for with regional road bed design.
Description
Technical Field
The invention relates to the technical field of roadbed settlement monitoring, in particular to a roadbed settlement monitoring device and a roadbed settlement monitoring system.
Background
The collapsibility is one of the typical characteristics of loess, and along with the continuous promotion of loess distribution district engineering construction, the loess collapsibility causes serious threat to loess road bed, loess foundation etc. to the loess foundation, because the scope of engineering construction is less relatively, can adopt the method of changing the packing to handle collapsible loess, but to linear engineering such as highway and railway that the loess distributes, because its span is longer, when meetting the collapsibility problem of loess, must solve, wholly change the packing processing cost too high, can only adopt traditional approach to administer. Besides the collapsibility of the original loess, a lot of large filling projects often exist when roads and railways are built in loess hilly areas, and the collapsibility problem of the built high filling roadbed also restricts the improvement work of the loess area infrastructure.
The main influence of loess collapsibility on roads in loess areas is reflected in subgrade settlement, pavement cracking, settlement, dislocation and the like caused by subgrade settlement are serious damage to the pavement and the rails of railways, and therefore the settlement amount of the road subgrade needs to be monitored.
Disclosure of Invention
Objects of the present invention include, for example, providing a subgrade settlement monitoring device and system that is capable of monitoring the settlement of a roadway subgrade.
Embodiments of the invention may be implemented as follows:
in a first aspect, the invention provides a roadbed settlement monitoring device, which comprises a roadbed settlement monitoring module and a processor;
the roadbed settlement monitoring module comprises a first standard rod, a second standard rod and a plurality of measuring rods;
the first standard rod and the second standard rod are respectively arranged at two ends of a roadbed section to be measured, the plurality of measuring rods are distributed between the first standard rod and the second standard rod, and the first standard rod, the second standard rod and the plurality of measuring rods are all arranged on the same straight line;
the first standard rod and the second standard rod are used for transmitting laser signals to the measuring rod and sending transmitting position information of the laser signals to the processor;
the measuring rod is provided with a laser receiving dot matrix and is used for receiving the laser signal, generating receiving position information of the laser signal and sending the receiving position information to the processor;
and the processor determines the settlement or deformation of the roadbed according to the receiving position information of the laser signal and the transmitting position information of the laser signal.
In an alternative embodiment, the first and second masts each include a laser emitter, wherein the laser emitter of the first mast is disposed at the top of the first mast and the laser emitter of the second mast is disposed at the bottom of the second mast.
In an optional embodiment, the measuring rod includes a prism and a laser gain unit, where the prism is configured to divide a received laser signal into two beams, where one beam is refracted to the laser receiving lattice; and the other beam is processed by the laser gain unit and then transmitted to the next measuring rod.
In an optional embodiment, the roadbed settlement monitoring device further comprises a roadbed pressure and displacement testing module;
the roadbed pressure and displacement testing module comprises a plurality of monitoring units, the monitoring units are distributed in the roadbed along the horizontal direction, and the monitoring units are used for monitoring the compression amount and the bearing of the roadbed and sending the compression amount and the bearing of the roadbed to the processor.
In an alternative embodiment, at least one monitoring unit is arranged between every two measuring rods.
In an optional embodiment, each monitoring unit comprises a plurality of data acquisition boxes, and the data acquisition boxes are distributed in the vertical direction inside the roadbed;
the pressure monitoring element is arranged in the data acquisition box, and the data acquisition boxes are distributed in the roadbed along the vertical direction and are used for monitoring vertical bearing at different positions of the roadbed.
In an alternative embodiment, each of the data acquisition boxes is provided with a sound wave transmitting/receiving system so as to determine the compression amount of the soil layer between two adjacent data acquisition boxes through the transmission and the reception of sound waves.
In an optional embodiment, the roadbed settlement monitoring device comprises a data acquisition module and a communication module, wherein the roadbed settlement monitoring module and the roadbed pressure and displacement testing module are connected with the data acquisition module so as to send monitored or acquired data to the data acquisition module;
the communication module is connected with the data acquisition module, the communication module is also connected with the processor, and the communication module is used for sending the data acquired by the data acquisition module to the processor.
In an optional embodiment, the roadbed settlement monitoring device comprises a power supply module, wherein the power supply module is connected with the data acquisition module, the communication module, the roadbed pressure and displacement testing module and the roadbed settlement monitoring module to supply power to the data acquisition module, the communication module, the roadbed pressure and displacement testing module and the roadbed settlement monitoring module.
In a second aspect, the present invention provides a subgrade settlement monitoring system comprising a central controller and a plurality of subgrade settlement monitoring devices according to any one of the preceding embodiments.
Compared with the prior art, the roadbed settlement monitoring device and the roadbed settlement monitoring system at least comprise the following beneficial effects:
the roadbed settlement monitoring device and the roadbed settlement monitoring system comprise a roadbed settlement monitoring module and a processor; the roadbed settlement monitoring module comprises a first standard rod, a second standard rod and a plurality of measuring rods; the first standard rod and the second standard rod are respectively arranged at two ends of a roadbed section to be measured, the plurality of measuring rods are distributed between the first standard rod and the second standard rod, and the first standard rod, the second standard rod and the plurality of measuring rods are all arranged on the same straight line; the first standard rod and the second standard rod are used for transmitting laser signals to the measuring rod and sending transmitting position information of the laser signals to the processor; the measuring rod is provided with a laser receiving dot matrix and is used for receiving the laser signal, generating receiving position information of the laser signal and sending the receiving position information to the processor; the treater foundation laser signal's receipt positional information and laser signal's transmission positional information confirms the settlement or the deflection of road bed can carry out settlement monitoring to road beds such as loess accurately, for road planning design, maintenance etc. provide corresponding reference data, can set up in coordination such as speed sensor, road sign in road with road bed settlement monitoring device and system simultaneously, solved power supply, data transmission scheduling problem among the road monitoring system, practiced thrift the cost greatly simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a subgrade settlement monitoring device provided by the present application;
fig. 2 is a schematic diagram of a subgrade settlement monitoring module provided by the present application;
fig. 3 is a schematic diagram of a subgrade settlement monitoring module provided by the present application;
fig. 4 is a schematic diagram of a roadbed pressure and displacement testing module provided by the present application.
Icon: 100-roadbed settlement monitoring device; 110-roadbed settlement monitoring module; 111-a first standard bar; 112-a second modular pole; 1110-a laser emitter; 113-measuring rod; 1131, laser receiving dot matrix; 1132-prism; 1133, a laser gain unit; 120-roadbed pressure and displacement test module; 121-a monitoring unit; 122-a data collection box; 130-a processor; 140-a data acquisition module; 150-a communication module; 161-solar panel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The collapsibility is one of the typical characteristics of loess, and along with the continuous promotion of loess distribution district engineering construction, the loess collapsibility causes serious threat to loess road bed, loess foundation etc. to the loess foundation, because the scope of engineering construction is less relatively, can adopt the method of changing the packing to handle collapsible loess, but to linear engineering such as highway and railway that the loess distributes, because its span is longer, when meetting the collapsibility problem of loess, must solve, wholly change the packing processing cost too high, can only adopt traditional approach to administer. Besides the collapsibility of the original loess, a lot of large filling projects often exist when roads and railways are built in loess hilly areas, and the collapsibility problem of the built high filling roadbed also restricts the improvement work of the loess area infrastructure.
At present, a plurality of monitoring devices are used on roads, including a device for monitoring through an inSAR technology, a device for monitoring through a sensor, a monitoring device established based on a pressure tank, an air bag and the like, and a suggested U-shaped pipe type field monitoring device.
In the prior art, a sensor, an air bag, a pressure tank, a resistance strain measuring device, a monitoring plate, a U-shaped pipe and the like can be used for monitoring the settlement of the road foundation, but the monitoring mode is lack of standard rod arrangement, and when the overall settlement of the road in a monitoring section is carried out, the problem of data distortion can be caused.
Based on the above problem, an embodiment of the present application provides a subgrade settlement monitoring device, please refer to fig. 1, and fig. 1 shows a schematic diagram of the subgrade settlement monitoring device provided in the embodiment.
As shown in fig. 1, the subgrade settlement monitoring device 100 includes a subgrade settlement monitoring module 110, a subgrade pressure and displacement testing module 120, and a processor 130. The subgrade and subgrade settlement monitoring module 110 and the subgrade pressure and displacement testing module 120 are used for monitoring subgrade parameters, sending the monitored subgrade parameters to the processor 130, and processing the subgrade parameters by the processor 130 to determine the settlement of the subgrade.
Referring to fig. 1 and 2 in combination, fig. 2 is a simplified schematic diagram of the subgrade settlement monitoring module 110, and the subgrade settlement monitoring module 110 includes a first standard rod 111, a second standard rod 112 and a plurality of measuring rods 113. The first standard rod 111 and the second standard rod 112 are respectively arranged at two ends of the roadbed section to be measured, the plurality of measuring rods 113 are distributed between the first standard rod 111 and the second standard rod 112, and the first standard rod 111, the second standard rod 112 and the plurality of measuring rods 113 are all arranged on the same straight line.
For example, when roadbed settlement monitoring is performed on a roadbed of a certain road section, the first standard rod 111 is arranged at the starting point of the road section to be monitored, the second standard rod 112 is arranged at the end point of the road section to be monitored, and the plurality of measuring rods 113 are distributed and arranged between the starting point and the end point, for example, in a possible embodiment, the plurality of measuring rods 113 may be distributed at equal intervals, but the invention is not limited thereto, and the intervals between the measuring rods 113 may also be different, for example, in an area where settlement is likely to occur, the arrangement density of the measuring rods 113 may be smaller; in other regions, the arrangement density of the measuring rod 113 may be increased as appropriate.
In a possible embodiment, the first standard rod 111, the second standard rod 112 and the plurality of measuring rods 113 should be disposed on the same side of the road, so as to avoid affecting the normal traffic of the road.
The first standard rod 111 and the second standard rod 112 are used as monitoring references, are in communication connection with a GPS, and determine the accuracy of the absolute position of the standard rods through satellite positioning. The first standard rod 111 and the second standard rod 112 are used for emitting laser signals to the measuring rod 113 and sending emission position information of the laser signals to the processor 130; the measuring rod 113 is mainly used for receiving the laser signal sent by the first standard rod 111 or the second standard rod 112 and monitoring the subgrade settlement amount.
In an alternative embodiment, the first and second canopies 111 and 112 each include a laser emitter 1110, and the positions of the laser emitters 1110 on the first and second canopies 111 and 112 are relatively fixed, so that the laser emitters 1110 of the first and second canopies 111 and 112 can be located while the first and second canopies 111 and 112 are located based on GPS, that is, the first and second canopies 111 and 112 can determine the emitting position information of the laser signal based on GPS location and send the emitting position information of the laser signal to the processor 130.
In a possible implementation manner, the measuring rod 113 is provided with a laser receiving lattice 1131 for receiving laser signals, the laser receiving lattice 1131 is a panel on which a plurality of laser collecting points are distributed, and collecting laser signals at different positions of the whole panel means different subgrade settlement amounts. When the laser receiving dot matrix 1131 receives the laser signal, the position of the laser collecting point receiving the laser signal is the position of receiving the laser signal, and the receiving position information of the laser signal is generated according to the position of the laser collecting point.
For example, the laser emitter 1110 of the first measuring stick 111 at the position a1 emits a laser signal, and the laser collecting point of the first measuring stick 113 at the position a2 receives the laser signal, the processor 130 receives the emission position information of the laser signal: a1, reception position information of the laser signal a 2; the processor 130 may determine the subgrade settlement amount of | a2-a1| generated at the first measuring stick 113 according to the transmitting position information of the laser signal and the receiving position information of the laser signal, and the subgrade settlement amount of | a2-a1| generated at the second measuring stick 113 assuming that the laser signal is received at the A3 height by the second measuring stick 113.
In some possible embodiments, the settlement amount of the roadbed can be determined by comparing the position information of the measuring rod 113 receiving the laser signal with the position information of the standard rod emitting the laser signal, and the settlement amount of the roadbed can be determined based on the receiving position information of the laser signal generated by the same measuring rod 113 at different times, and since the position of the standard rod is relatively fixed, the emitting position of the laser signal is relatively fixed, if a certain measuring rod 113 receives the laser signal at the position of a1 at the time of T1, and receives the laser signal at the position of a2 at the time of T2, the roadbed at the measuring rod 113 generates the settlement amount of the roadbed of | a2-a1| from the time of T1 to the time of T2.
In one possible implementation, the laser transmitter 1110 of the first standard pole 111 is disposed at the top of the first standard pole 111, and the laser transmitter 1110 of the second standard pole 112 is disposed at the bottom of the second standard pole 112, so that the monitoring of subgrade settlement can be achieved by using laser signals of two different heights. When the laser receiving dot matrix 1131 on the measuring rod 113 receives the laser signal, the receiving position information of the laser signal is generated according to the specific position of the laser receiving dot matrix 1131 of the receiving signal, and the receiving position information is sent to the processor 130; the processor 130 determines the settlement or deformation amount of the roadbed according to the receiving position information of the laser signal and the transmitting position information of the laser signal.
Since there are two laser signals emitted by the etalon, in some possible implementations, the laser signals emitted by the first etalon 111 and the second etalon 112 have different parameters, such as a certain difference in frequency or wavelength.
In addition, since the first standard bar 111, the second standard bar 112, and the plurality of measuring bars 113 are all arranged on the same straight line, in order to ensure that the measuring bar 113 not adjacent to the first standard bar 111 or the second standard bar 112 can also normally receive the laser signals sent by the first standard bar 111 and the second standard bar 112, in an optional embodiment, please refer to fig. 3, a prism 1132 and a laser gain unit 1133 are arranged on the measuring bar 113, wherein the prism 1132 is configured to divide the received laser signals into two beams, and one of the two beams is refracted to the laser receiving lattice 1131; the other beam is processed by the laser gain unit 1133 and transmitted to the next measurement rod 113.
It can be understood that, since the laser emitter 1110 of the first etalon 111 is disposed at the top of the first etalon 111, and the laser emitter 1110 of the second etalon 112 is disposed at the bottom of the second etalon 112, the top and the bottom of each measurement bar 113 are provided with the laser receiving lattice 1131, the prism 1132 and the laser gain unit 1133.
In order to facilitate collection of laser signal emitting position information or laser signal receiving position information sent by the first standard rod 111, the second standard rod 112, and the plurality of measuring rods 113, the roadbed settlement monitoring device 100 provided in this embodiment is further provided with a data acquisition module 140, where the data acquisition module 140 includes a plurality of data acquisition ports, each data acquisition port is connected with one standard rod or measuring rod 113, and meanwhile, the data acquisition module 140 is further in communication connection with the processor 130 to send corresponding information sent by the standard rod or measuring rod 113 to the processor 130.
In the above embodiment, the settlement amount of the roadbed is monitored by the first standard rod 111, the second standard rod 112 and the plurality of measuring rods 113, and in an optional embodiment, the roadbed settlement monitoring device 100 further comprises a roadbed pressure and displacement testing module 120 for monitoring the load and compression deformation borne by the roadbed at different levels.
Referring to fig. 1 and 4, the roadbed pressure and displacement testing module 120 includes a plurality of monitoring units 121, the monitoring units 121 are distributed in the roadbed along a horizontal direction, and the monitoring units 121 are configured to monitor the compression amount and the load of the roadbed and send the compression amount and the load of the roadbed to the processor 130. In an alternative embodiment, at least one monitoring unit 121 is arranged between every two measuring rods 113.
In an alternative embodiment, each data acquisition box 122 is provided with an acoustic transmission/reception system to determine the amount of compression of the soil layer between two adjacent data acquisition boxes 122 by transmission and reception of acoustic waves. For example, the monitoring unit 121 includes four data collection boxes (but not limited thereto, and a greater or lesser number may be provided), represented by a first data collection box, a second data collection box, a third data collection box, and a fourth data collection box, respectively. The first data acquisition box, the second data acquisition box, the third data acquisition box and the fourth data acquisition box are arranged from top to bottom in sequence. The first data acquisition box, the second data acquisition box, the third data acquisition box and the fourth data acquisition box are all provided with sound wave transmitting/receiving systems. By using the sound wave distance measuring mode, the distance between the first data acquisition box and the second data acquisition box, the distance between the second data acquisition box and the third data acquisition box and the distance between the third data acquisition box and the fourth data acquisition box can be monitored, and when the compression amount of different layers of the roadbed is changed, the distance between the data acquisition boxes 122 can be changed, so that the compression amounts of different layers of the roadbed can be monitored through the data acquisition boxes 122.
The first data acquisition cartridge 122, the second data acquisition cartridge 122, the third data acquisition cartridge 122, and the fourth data acquisition cartridge 122 are provided with pressure monitoring elements that monitor the pressure experienced by the data acquisition cartridge 122 at the location at which it is located. On one hand, the load of vehicles running on the road can be monitored, and on the other hand, the pressure borne by the road at different levels can be monitored.
It will be appreciated that each data collection box 122 is connected to the data collection module 140 such that collected data is transmitted to the processor 130 via the data collection module 140, and the processor 130 processes the data collected by the data collection box 122.
In an alternative embodiment, the subgrade settlement monitoring device 100 includes a communication module 150, and the subgrade settlement monitoring module 110 and the subgrade pressure and displacement testing module 120 are connected with the data acquisition module 140 to transmit the monitored or acquired data to the data acquisition module 140; the communication module 150 is connected to the data acquisition module 140, the communication module 150 is further connected to the processor 130, and the communication module 150 is configured to send the data acquired by the data acquisition module 140 to the processor 130.
The communication module 150 may be a wireless communication module 150 or a wired communication module 150, and the communication module 150 is used to transmit data, so as to realize remote roadbed settlement monitoring.
In an alternative embodiment, the subgrade settlement monitoring device 100 includes a power module (not shown), and the power module is connected to the data acquisition module 140, the communication module 150, the subgrade pressure and displacement testing module 120 and the subgrade settlement monitoring module 110 to supply power to the data acquisition module 140, the communication module 150, the subgrade pressure and displacement testing module 120 and the subgrade settlement monitoring module 110.
Generally, be provided with devices such as speed sensor and sign in the road, the road bed settlement monitoring device 100 that this application provided can with shared power module such as current speed sensor and sign device, communication module 150 etc to reduce system cost. For example, the roadbed settlement monitoring device 100 can be provided with a solar panel 161, and the solar panel 161 can supply power to devices such as a speed measuring device and an indication board in a road, in addition to the roadbed settlement monitoring device 100.
Through with speed sensor and sign etc. collaborative settings in the road, practiced thrift the cost in the aspect of the monitoring of whole road bed, and better solution monitoring devices power supply and line connection and data acquisition scheduling problem, after being incorporated into the power networks with whole road monitoring system, can carry out data sharing based on the software platform of traffic department, make different ground body road bed deformation data obtain the sharing.
Based on the subgrade settlement monitoring device 100 provided in the above embodiment, the present invention further provides a subgrade settlement monitoring system (not shown), which includes a central controller and a plurality of subgrade settlement monitoring devices as described in any one of the foregoing embodiments.
In practical application, a plurality of subgrade settlement monitoring devices 100 can be distributed and arranged on the basis of different road sections in a certain area, the monitored data are sent to a central controller by the plurality of subgrade settlement monitoring devices 100 to be summarized and processed, and the full coverage of the certain area or the certain road section is realized, so that the monitored data can become reliable technical parameters in later-stage road maintenance and repair.
The central controller can be connected with a data system of a traffic management department so that the traffic management department can manage traffic according to the settlement condition of the road subgrade and guarantee smooth traffic and road safety.
In summary, the roadbed settlement monitoring device and the roadbed settlement monitoring system provided by the application comprise a roadbed settlement monitoring module and a processor; the roadbed settlement monitoring module comprises a first standard rod, a second standard rod and a plurality of measuring rods; the first standard rod and the second standard rod are respectively arranged at two ends of the roadbed section to be measured, the plurality of measuring rods are distributed between the first standard rod and the second standard rod, and the first standard rod, the second standard rod and the plurality of measuring rods are all arranged on the same straight line; the first standard rod and the second standard rod are used for transmitting laser signals to the measuring rod and transmitting the transmitting position information of the laser signals to the processor; the measuring rod is provided with a laser receiving dot matrix and is used for receiving laser signals, generating receiving position information of the laser signals and sending the receiving position information to the processor; the processor determines the settlement or deformation of the roadbed according to the receiving position information of the laser signal and the transmitting position information of the laser signal, can accurately monitor the settlement of the roadbed such as loess and the like, provides corresponding reference data for road planning design, maintenance and the like, and can cooperatively set a roadbed settlement monitoring device, a speed measuring device of a road, a road sign and the like, thereby solving the problems of power supply, data transmission and the like in a road monitoring system, greatly saving the cost, simultaneously determining the lower limit of the depth of the influence of vehicle load on the roadbed by the obtained monitoring data, and providing technical parameters for the design of the roadbed of the same-region road.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A roadbed settlement monitoring device is characterized by comprising a roadbed settlement monitoring module and a processor;
the roadbed settlement monitoring module comprises a first standard rod, a second standard rod and a plurality of measuring rods;
the first standard rod and the second standard rod are respectively arranged at two ends of a roadbed section to be measured, the plurality of measuring rods are distributed between the first standard rod and the second standard rod, and the first standard rod, the second standard rod and the plurality of measuring rods are all arranged on the same straight line;
the first standard rod and the second standard rod are used for transmitting laser signals to the measuring rod and sending transmitting position information of the laser signals to the processor;
the measuring rod is provided with a laser receiving dot matrix and is used for receiving the laser signal, generating receiving position information of the laser signal and sending the receiving position information to the processor;
and the processor determines the settlement or deformation of the roadbed according to the receiving position information of the laser signal and the transmitting position information of the laser signal.
2. The subgrade settlement monitoring device of claim 1, wherein the first and second standard poles each comprise a laser emitter, wherein the laser emitter of the first standard pole is disposed on the top of the first standard pole, and the laser emitter of the second standard pole is disposed on the bottom of the second standard pole.
3. The subgrade settlement monitoring device of claim 1, wherein the measuring rod comprises a prism and a laser gain unit, wherein the prism is used for dividing the received laser signal into two beams, and one beam is refracted to the laser receiving lattice; and the other beam is processed by the laser gain unit and then transmitted to the next measuring rod.
4. The subgrade settlement monitoring device of claim 1, further comprising a subgrade pressure and displacement testing module;
the roadbed pressure and displacement testing module comprises a plurality of monitoring units, the monitoring units are distributed in the roadbed along the horizontal direction, and the monitoring units are used for monitoring the compression amount and the bearing of the roadbed and sending the compression amount and the bearing of the roadbed to the processor.
5. The subgrade settlement monitoring device of claim 4, wherein at least one monitoring unit is arranged between every two measuring rods.
6. The subgrade settlement monitoring device according to claim 4, wherein each monitoring unit comprises a plurality of data acquisition boxes which are distributed in a vertical direction inside the subgrade;
the pressure monitoring element is arranged in the data acquisition box, and the data acquisition boxes are distributed in the roadbed along the vertical direction and are used for monitoring vertical bearing at different positions of the roadbed.
7. The subgrade settlement monitoring device of claim 6, wherein each data acquisition box is provided with a sound wave transmitting/receiving system to determine the compression amount of the soil layer between two adjacent data acquisition boxes through the transmission and the reception of sound waves.
8. The subgrade settlement monitoring device according to claim 4, comprising a data acquisition module and a communication module, wherein the subgrade settlement monitoring module, the subgrade pressure and displacement testing module are connected with the data acquisition module to send monitored or collected data to the data acquisition module;
the communication module is connected with the data acquisition module, the communication module is also connected with the processor, and the communication module is used for sending the data acquired by the data acquisition module to the processor.
9. The subgrade settlement monitoring device of claim 8, comprising a power module connected with the data acquisition module, the communication module, the subgrade pressure and displacement testing module, and the subgrade settlement monitoring module to power the data acquisition module, the communication module, the subgrade pressure and displacement testing module, and the subgrade settlement monitoring module.
10. A subgrade settlement monitoring system comprising a central controller and a plurality of subgrade settlement monitoring devices according to any one of claims 1 to 9.
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