CN208269844U - Grid protects the monitoring device of side slope surface stress strain - Google Patents
Grid protects the monitoring device of side slope surface stress strain Download PDFInfo
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- CN208269844U CN208269844U CN201821025153.1U CN201821025153U CN208269844U CN 208269844 U CN208269844 U CN 208269844U CN 201821025153 U CN201821025153 U CN 201821025153U CN 208269844 U CN208269844 U CN 208269844U
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Abstract
The utility model discloses a kind of monitoring devices of grid protection side slope surface stress strain, including grid lines, CCD monitoring box, power supply device, signal condition and transferring device, radio transmitting device and data processing and display device；The grid lines is preset in grid surface, and the CCD monitoring box is fixed on the grid, and is located at right above the grid lines, and the power supply device provides power supply for the signal condition and transferring device；The CCD monitoring box obtains the real-time image signal of the grid lines, and it is sent to signal condition and transferring device, after the signal condition and transferring device carry out de-noising, amplification, signal normalization processing to described image signal, data processing is sent to by radio transmitting device and display device is stored, the picture signal of the grid lines of the data processing simultaneously and display device comparison different moments, obtains the deflection of the grid and assesses slope stability.
Description
Technical field
The utility model relates to slope project technology for deformation monitoring field, in particular to a kind of grid protection side slope surface is answered
The monitoring device of stress-strain.
Background technique
It with modernization promotes, the south water to north, Midwest exploitation and a band implementation all the way are met in engineering
To a large amount of slope project problem, slope instability is as a kind of geological disaster, and commonplace in all kinds of engineering constructions, side slope is lost
Steady disaster drastically influences job facilities design, construction and operation, threatens the people's lives and property safety.Slope project stability
One of important directions as geotechnical study, side slope is unstable will influence whether the feasibility of engineering construction, safety and
Economy.In order to guarantee that the safety of engineering construction and operation, side slope carry out long-term, effective, accurately monitoring, predicts side in advance
The state on slope provides foundation for Decision Evaluation, reduces slope instability harm, is slope project urgent problem.
Existing slope monitoring means are divided into side slope surface deformation monitoring means, side slope internal modification monitoring means and ground
Sound monitoring means etc., wherein side slope surface deformation monitoring means are more typical, different in the unstable region of main side slope surface
Point carries out position detection, can intuitively understand the development of deformation on side slope surface by being displaced delta data in different time points, sentence
Cut edge slope security and stability.Surface deformation monitoring means in slope mainly has artificial joint measurement method, up short method and geodesic method
Deng.
Artificial joint measurement method has many advantages, such as that investment is fast, precision is high, ranging is adjustable and method Simple visual, but scene is artificial
It is severe to measure working environment, worker safety ensures low, heavy workload, and measurement visibility requires height and there are biggish people
For error, it is big etc. that difficulty is monitored in bad weather.
Up short method (theodolite is taken the photograph on road) has many advantages, such as that big monitoring information amount, human-saving, investment are fast, safe but right
Equipment and technology is more demanding and precision is lower, and climate is affected, and there are range is limited and precision when equipment practical application
The problems such as insufficient.
The advantages that geodesic method investment is fast, monitoring range is big, intuitive, safe, but exist and regarded logical and weather shadow by landform
It rings, the deficiencies of positioning accuracy is not high and heavy workload, it is also difficult to which continuous side slope is monitored for a long time.
Nowadays the supporting measure of practical slope project mainly includes building armored concrete supporting construction (as built antiskid
Stake, Gravity Retaining Wall, suspension roof support, build concrete grating etc.), to improve the skid resistance of slip mass.Wherein most side
Slope slope surface is mainly based on grid supporting, and grid supporting can not only protect side slope and grid restores also very later period slope greening
Favorably, meet the requirement in engineering construction at present to environmental protection.
In slope monitoring system technology practical engineering application, the method that does not still solve very well so far.For current
Side slope surface deformation monitoring method there are the shortcomings that, being monitored in conjunction with slope retaining structure side slope surface deformation is that have very much must
It wants.
Utility model content
The purpose of the utility model is to overcome the above-mentioned deficiencies in the presence of the prior art, provide a kind of grid protection edge
The monitoring device of slope surface stress strain, direct side slope grid supporting construction are monitored.
In order to achieve the above-mentioned object of the invention, the utility model provides following technical scheme:
A kind of monitoring device of grid protection side slope surface stress strain, including grid lines, CCD monitoring box, power supply dress
It sets, signal condition and transferring device, radio transmitting device and data processing and display device；
The grid lines is preset in grid surface modes such as () being portrayed by image, and the CCD monitoring box is fixed on
On the grid, and it is located at right above the grid lines, the power supply device provides electricity for the signal condition and transferring device
Source；
The CCD monitoring box obtains the real-time image signal of the grid lines, and is sent to signal condition and transfer dress
It sets, after the signal condition and transferring device carry out de-noising, amplification, signal normalization processing to described image signal, passes through nothing
Line transmitting device is sent to data processing and display device is stored, while the data processing and display device comparison are different
The picture signal of the grid lines at moment obtains the deflection of the grid and assesses slope stability.
CCD is a kind of photoelectricity dress parallel operation part, has signal output noise low, dynamic range is big, quantum effect and charge
The advantages that transfer efficiency is high has highly sensitive and high accuracy to information representation.The working principle of CCD, so that the monitoring fills
Setting has the function of automatic sweeping, high stability, and measurement accuracy is high, and sensitivity is good, can be realized uninterrupted monitoring, and the whole series are set
Standby price is low, easy to loading and unloading.The operation of personnel's field condition is not needed in monitoring process, is solved while using manpower and material resources sparingly yet
The safety problem of personnel, while also solving the problems, such as bad weather side slope safety hidden danger but monitoring difficulty is big greatly.
A whole set of monitoring device is only mounted in grid protection without slope soil of directly nuzzling, different by comparison
The picture signal of the grid lines at moment, the small deformation from microcosmic angle monitoring concrete grating, monitoring accuracy is high, can be indirect
Side slope soil pressure force data is obtained, and judgment basis can be provided for slope stability and construction feasibility, reduces side slope
Structure causes a possibility that local failure, is especially advantageous for constructing again.
The data-signal of collection is subjected to the processing such as de-noising, amplification, signal normalization using radio transmitting device, and will be adjusted
Signal after whole is transmitted to data processing and display device, realizes the safe transmission of the real-time long range of data.
Preferably, the CCD monitor box attached bag includes CCD camera, box interior power, light source and signal extraction and transmission device,
At the source emissioning light beam to the grid lines, the CCD camera receives the reflected beams of the grid lines, and the signal mentions
It takes and transmission device converts electric signal for the optical signal of the reflected beams and transmitted, stored to electric signal, it is electric in the box
Source then provides electric energy for the CCD camera, light source and signal extraction and transmission device.
Preferably, the CCD monitoring box is mounted on the grid by fixed bracket, and the fixed bracket and institute
Grid detachable connection is stated, it is easy for assemble or unload, easy to operate.
Preferably, the fixed bracket is adapted with the reserved connector of the grid, avoids installing CCD monitor box in the later period
The period of the day from 11 p.m. to 1 a.m destroys prop.When being not provided with reserved connector on grid, bracket and the grid can also will be fixed by expansion bolt
It is connected to a fixed.
Preferably, the fixed bracket is equipped with connection guide rail, and chain is connected to spring pad respectively at the both ends of the connection guide rail,
It is equipped with the CCD in the middle part of the connection guide rail and monitors box.Spring pad is set on fixed bracket, on the one hand can prevent coagulation
Native stress deformation causes bracket destruction or mobile, and CCD monitoring box is on the other hand also allow to cooperate with change with concrete grating
Shape reduces measurement error.
Preferably, the signal condition filters the picture signal received using narrow band filter with transferring device
Wave, combining adaptive algorithm carry out intersymbol interference inhibition, the optimization of spread spectrum communication are realized, conducive to data processing and display is relayed to
Device.
Preferably, the data processing and display device conclude collected real time data, press to anticipatory data
It is predicted according to algorithm, form the database with look-ahead function, to can determine whether side slope, there are also how long can
Unstability occurs, Slope Stability analysis provides reliable prediction data with the safety of side slope protection body.
Preferably, the power supply device includes device of solar generating, and environmentally protective and sustainability is good, to realize field
Uninterrupted monitoring provides the foundation.
It is including any described the invention also discloses a kind of monitoring method of grid protection side slope surface stress strain
Grid protection side slope surface stress strain monitoring device, monitoring method are as follows:
Step 1: the surface programming grid lines of the grid in slope surface；
Step 2: CCD monitoring box is mounted on the grid, and is located at the surface of the grid lines；
Step 3: the CCD monitoring box obtains the real-time image signal of the grid lines；
Step 4: collected described image signal is sent to signal condition and transferring device by the CCD monitoring box；
Step 5: the signal condition and transferring device carry out de-noising, amplification to described image signal, at signal normalization
Reason；
Step 6: described image signal passes through radio transmitting device hair by treated for the signal condition and transferring device
Give data processing and display device；
Step 7: the picture signal of the grid lines of the data processing and display device comparison different moments obtains
The deflection of the grid, according to the deflection of the grid, in conjunction with concrete stress strain stress relation, to the stabilization of the side slope
Property is assessed.
The monitoring method is by CCD technical application on slope monitoring, and monitoring data accuracy is good, high sensitivity, precision are good,
Data processing and display device combination concrete stress strain stress relation, related slope stability computational theory or method side slope are steady
It is qualitative to be judged, it can be predicted and judge whether side slope is stable.Structure installing and dismounting used by the monitoring method is simple, monitoring
Step is few, greatly reduces slope monitoring difficulty.
Preferably, it in the step 7, is assessed by stability of the Side Slope Safety Coefficient K to the side slope, wherein
The calculating process of the Side Slope Safety Coefficient K are as follows:
It is obtained suffered by the grid according to the deflection of the obtained grid in conjunction with concrete stress strain stress relation
Moment of flexure are as follows:
In formula, MqFor grid institute bending moment, h0For grid effective depth of section, AsFor longitudinal reinforcement area of section, w is lattice
Grid deflection, EsFor reinforcing bar elasticity modulus, ρteFor effective reinforcement rate, λ is that concrete assists reinforcing bar tension system between reflection crack
Number, csDistance for outermost layer longitudinal tensile reinforcing bar outer edge to tension bottom edge, deqFor the equivalent diameter of tensile region longitudinal reinforcement；
Then, Distribution Principles are evenly distributed with according to simplified soil pressure, calculate that side slope acts on the soil pressure of the grid are as follows:
In formula, q is that side slope acts on the soil pressure on grid, and l is grid single span length；
Finally, judged in conjunction with slope stability computational theory using Side Slope Safety Coefficient K Slope Stability,
The Non-linear function expression of middle Side Slope Safety Coefficient K are as follows:
K=f (G, c, L, θ, ψ, q)
In formula, G is side slope self weight, and c is slopes cohesion, and L is sliding surface length, and θ is sliding surface inclination angle, and ψ is interior friction
Angle.
It, can also be according to grid relative deformation increment percentage when carrying out slope stability estimationTo the side of middle or short term
Slope deflection is predicted.With reference to " geotechnical engineering monitoring specification " and " Technique Code for Building Slope Engineering ", grid is defined
Incremental deformation is Δ w=wn-wn-1(in formula, w indicates that grid deflection, n indicate the numerical value of n-th acquisition), then grid is opposite becomes
Shape increment percentageIt, can be according to grid in a period of time that previous monitoring obtains when calculating analysis
Accumulated deformation total amount mean value and real-time deformation increment percentage, by real-time trend of proportion centering short period
Slope deforming amount predicted, is set different increment percentage sections and is divided into slope stability and stablizes, is secondary stabilization, compacted
Dynamic, 5 kinds of sliding, unstability states, according to monitoring and warning mode criterion, real-time judge monitors region slope stability state.Finally
Risk assessment and decision are carried out according to relevant information, and by the formal intuition of image slope surface state is showed.
Generally speaking, there are two types of methods for judgement of stability: first is that according to the whether stable progress of Side Slope Safety Coefficient K side slope
Judgement；Second is that according to grid relative deformation increment percentageCarry out Analysis of Slope Stability.Two methods mutually verify, not only
It can prevent early warning system from judging by accident, also further improve the reliability of monitoring.
Compared with prior art, the utility model has the beneficial effects that
(1) it is monitored using the deformation of CCD technology side slope grid, not only data are accurate and reliable and have measurement accuracy high
The good feature of sensitivity.(2) it is monitored using CCD technology side slope, the round-the-clock real-time side slope of energy is monitored.(3) it supervises
The operation of personnel's field condition is not needed during surveying, and solves the safety problem of personnel while using manpower and material resources sparingly, together yet
When also solves the problems, such as bad weather side slope safety hidden danger, and but monitoring difficulty is big greatly.(4) monitoring device is without side of directly nuzzling
The slope soil body, can obtain side slope soil pressure force data indirectly, and can be provided for slope stability and construction feasibility judge according to
According to conducive to constructing again.(5) steel connector is reserved on concrete grating or beats expansion bolt and is monitored equipment and is fixed, and installation is torn open
Unload conveniently, it is easy to operate.(6) scene is signal processing using device of solar generating and transmits and provide electric energy, it is environmentally protective and
Sustainability is good.(7) spring pad is set on rigid support, makes CCD monitoring device and concrete grating cooperative transformation, reduces and surveys
Measure error.(8) data-signal of collection is subjected to the processing such as de-noising, amplification, signal normalization using radio transmitting device and incited somebody to action
Signal adjusted is transmitted to data processing and display device, realizes the safe transmission of the real-time long range of data.(9) at data
Reason and display device are by monitoring data combination concrete stress strain stress relation, correlation slope stability computational theory or method opposite side
Slope stability is judged, be can be predicted and is judged whether side slope is stable.
Detailed description of the invention:
Fig. 1 is a kind of schematic diagram of the monitoring device of grid protection side slope surface stress strain described in the utility model.
Fig. 2 is the partial enlarged view of dashed region A in Fig. 1.
Fig. 3 is the schematic diagram of CCD monitoring box described in the utility model.
Marked in the figure: 1- side slope, 11- slope surface, 2- grid, 21- grid lines, 22- reserve connector, 3-CCD monitors box,
31-CCD camera, 32- box interior power, 33- light source, 34- signal extraction and transmission device, 4- power supply device, 5- signal condition with
Transferring device, 6- radio transmitting device, 7- data processing and display device, 71- database, 72- assessment and decision-making module, 8- are solid
Fixed rack, 81- connection guide rail, 82- spring pad.
Specific embodiment
The utility model is described in further detail below with reference to test example and specific embodiment.But it should not be by this
The range for being interpreted as the above-mentioned theme of the utility model is only limitted to embodiment below, all to be realized based on the content of the present invention
Technology belongs to the scope of the utility model.
Embodiment 1
As shown in Figure 1-Figure 3, a kind of monitoring device of grid protection side slope surface stress strain, including grid lines 21, CCD
Monitor box 3, power supply device 4, signal condition and transferring device 5, radio transmitting device 6 and data processing and display device 7.
The CCD monitoring box 3 obtains the real-time image signal of the grid lines 21, and is sent to signal condition and transfer
After device 5, the signal condition and transferring device 5 carry out de-noising, amplification, signal normalization processing to described image signal, lead to
Cross that radio transmitting device 6 is sent to data processing and display device 7 is stored, while the data processing and display device 7
The picture signal for comparing the grid lines 21 of different moments, obtains the deflection of the grid 2 and assesses slope stability.
The grid lines 21 is portrayed in advance on 2 surface of grid, and the power supply device 4 includes device of solar generating, described
Power supply device 4 is that the signal condition and transferring device 5 provide power supply.
The CCD monitoring box 3 includes CCD camera 31, box interior power 32, light source 33 and signal extraction and transmission device
34, the light source 33 emits at light beam to the grid lines 21, and the CCD camera 31 receives the reflected light of the grid lines 21
Beam, the signal extraction and transmission device 34 convert electric signal for the optical signal of the reflected beams and transmitted to electric signal,
Storage, the box interior power 32 then provide electric energy for the CCD camera 31, light source 33 and signal extraction and transmission device 34.
CCD monitoring box 3 passes through fixed bracket 8 and is mounted on the grid 2, and be located at the grid lines 21 just on
Side, and the fixed bracket 8 is adapted with the reserved connector 22 of the grid 2.The fixed bracket 8 is equipped with connection guide rail
81, chain is connected to spring pad 82 respectively at the both ends of the connection guide rail 81, is equipped with the CCD monitor box in the middle part of the connection guide rail 81
Son 3.
The soil body of a whole set of monitoring device without side slope 1 of directly nuzzling, is only mounted on the grid 2 of slope surface 11, passes through
The picture signal for comparing the grid lines 21 of different moments, can obtain 1 soil pressure force data of side slope, and can be side slope 1 indirectly
Stability and construction feasibility provide judgment basis, reduce a possibility that 1 structure of side slope causes local failure, are especially advantageous for
It constructs again.On the other hand, spring pad 82 is set on fixed bracket 9, makes CCD monitoring device and 2 cooperative transformation of concrete grating,
Reduce measurement error.
When carrying out 1 deformation monitoring of side slope, several CCD monitoring box 3 can be installed on side slope grid 2, it is specific to pacify
Number and spacing interval are filled, can be determined according to required measurement accuracy.CCD monitor box 3 installation site and clipping room away from
Simple change does not play substantive decisive action to the implementation of this programme.
Embodiment 2
A kind of monitoring method of grid protection side slope surface stress strain, monitoring method are as follows:
Step 1: the surface programming grid lines 21 of the grid 2 in slope surface 11；
Step 2: CCD monitoring box 3 is mounted on the grid 2, and is located at the surface of the grid lines 21；
Step 3: the CCD monitoring box 3 obtains the real-time image signal of the grid lines 21；
Step 4: collected described image signal is sent to signal condition and transferring device by the CCD monitoring box 3
5；
Step 5: the signal condition and transferring device 5 carry out de-noising, amplification, signal normalization to described image signal
Processing, specifically, being filtered using narrow band filter to the picture signal received, it is dry that combining adaptive algorithm carries out intersymbol
Inhibition is disturbed, realizes the optimization of spread spectrum communication；
Step 6: described image signal passes through radio transmitting device 6 by treated for the signal condition and transferring device 5
It is sent to data processing and display device 7；
Step 7: the picture signal of the grid lines 21 of the data processing and the comparison different moments of display device 7 obtains
To the deflection of the grid 2, according to the deflection of the grid 2, in conjunction with concrete stress strain stress relation, to the side slope 1
Stability assessed；
Specifically, the data processing and the assessment of display device 7 and decision-making module 72, according to the obtained grid 2
Deflection obtain moment of flexure suffered by the grid 2 in conjunction with concrete stress strain stress relation are as follows:
In formula, MqFor grid institute bending moment, h0For grid effective depth of section, AsFor longitudinal reinforcement area of section, w is lattice
Grid deflection, EsFor reinforcing bar elasticity modulus, ρteFor effective reinforcement rate, λ is that concrete assists reinforcing bar tension system between reflection crack
Number, csDistance for outermost layer longitudinal tensile reinforcing bar outer edge to tension bottom edge, deqFor the equivalent diameter of tensile region longitudinal reinforcement；
Then, Distribution Principles are evenly distributed with according to simplified soil pressure, calculate that side slope 1 acts on the soil pressure of the grid 2 are as follows:
In formula, q is that side slope acts on the soil pressure on grid, and l is grid single span length；
Finally, judged in conjunction with slope stability computational theory using Side Slope Safety Coefficient K Slope Stability,
The Non-linear function expression of middle Side Slope Safety Coefficient K are as follows:
K=f (G, c, L, θ, ψ, q)
In formula, G is side slope self weight, and c is slopes cohesion, and L is sliding surface length, and θ is sliding surface inclination angle, and ψ is interior friction
Angle.
It, can also be according to grid relative deformation increment percentage when carrying out slope stability estimationTo the side of middle or short term
Slope deflection is predicted.With reference to " geotechnical engineering monitoring specification " and " Technique Code for Building Slope Engineering ", grid is defined
Incremental deformation is Δ w=wn-wn-1(in formula, w indicates that grid deflection, n indicate the numerical value of n-th acquisition), then grid is opposite becomes
Shape increment percentageIt, can be according to grid in a period of time that previous monitoring obtains when calculating analysis
Accumulated deformation total amount mean value and real-time deformation increment percentage, by real-time trend of proportion centering short period
Slope deforming amount predicted, is set different increment percentage sections and is divided into slope stability and stablizes, is secondary stabilization, compacted
Dynamic, 5 kinds of sliding, unstability states, according to monitoring and warning mode criterion, real-time judge monitors region slope stability state.Finally
Risk assessment and decision are carried out according to relevant information, and by the formal intuition of image slope surface state is showed.
Generally speaking, there are two types of methods for judgement of stability: first is that according to the whether stable progress of Side Slope Safety Coefficient K side slope
Judgement；Second is that according to grid relative deformation increment percentageCarry out Analysis of Slope Stability.Two methods mutually verify, not only
It can prevent early warning system from judging by accident, also further improve the reliability of monitoring.
Finally, the data processing and display device 7 also conclude collected real time data, anticipatory data is pressed
It is predicted according to algorithm, forms the database 71 with look-ahead function, to can determine whether side slope also how long
Unstability can occur, Slope Stability analysis provides reliable prediction data with the safety of side slope protection body.
Above embodiments are only to illustrate the utility model and not limit technical solution described in the utility model, to the greatest extent
Pipe this specification has been carried out detailed description to the utility model referring to above-mentioned each embodiment, but the utility model not office
It is limited to above-mentioned specific embodiment, therefore any pair of the utility model is modified or equivalent replacement；And all do not depart from it is practical
The technical solution and its improvement of novel spirit and scope, should all cover in the scope of the claims of the utility model.
Claims (9)
1. a kind of monitoring device of grid protection side slope surface stress strain, which is characterized in that supervised including grid lines (21), CCD
Box (3), power supply device (4), signal condition and transferring device (5), radio transmitting device (6) and data processing and display is surveyed to fill
Set (7)；
The grid lines (21) is preset in grid (2) surface, and CCD monitoring box (3) is fixed on the grid (2), and
Right above the grid lines (21), the power supply device (4) is that the signal condition and transferring device (5) provide power supply；
CCD monitoring box (3) obtains the real-time image signal of the grid lines (21), and is sent to signal condition and transfer
Device (5), the signal condition and transferring device (5) carry out de-noising, amplification, signal normalization processing to described image signal
Afterwards, data processing is sent to by radio transmitting device (6) and display device (7) is stored, at the same the data processing and
Display device (7) compares the picture signal of the grid lines (21) of different moments, obtains the deflection of the grid (2) and comments
Estimate slope stability.
2. the monitoring device of grid protection side slope surface stress strain according to claim 1, which is characterized in that described
CCD monitoring box (3) includes CCD camera (31), box interior power (32), light source (33) and signal extraction and transmission device (34),
At light source (33) the transmitting light beam to the grid lines (21), the CCD camera (31) receives the anti-of the grid lines (21)
Irradiating light beam, the signal extraction and transmission device (34) convert electric signal for the optical signal of the reflected beams and carry out to electric signal
Transmission, storage, the box interior power (32) are then the CCD camera (31), light source (33) and signal extraction and transmission device
(34) electric energy is provided.
3. the monitoring device of grid protection side slope surface stress strain according to claim 1, which is characterized in that described
CCD monitoring box (3) passes through fixed bracket (8) and is mounted on the grid (2), and the fixed bracket (8) and the grid
(2) detachable connection.
4. the monitoring device of grid protection side slope surface stress strain according to claim 3, which is characterized in that described solid
Fixed rack (8) is adapted with the reserved connector (22) of the grid (2).
5. the monitoring device of grid protection side slope surface stress strain according to claim 3, which is characterized in that described solid
Fixed rack (8) is connected to a fixed by expansion bolt with the grid (2).
6. the monitoring device of grid protection side slope surface stress strain according to claim 3, which is characterized in that described solid
Fixed rack (8) is equipped with connection guide rail (81), and chain is connected to spring pad (82), the company respectively at the both ends of connection guide rail (81)
It connects and is equipped with CCD monitoring box (3) in the middle part of guide rail (81).
7. the monitoring device of grid protection side slope surface stress strain according to claim 1, which is characterized in that the letter
Number conditioning with transferring device (5) use narrow band filter the picture signal received is filtered, combining adaptive algorithm into
Row intersymbol interference inhibits, and realizes the optimization of spread spectrum communication.
8. the monitoring device of grid protection side slope surface stress strain according to claim 1, which is characterized in that the number
Collected real time data is concluded according to processing and display device (7), anticipatory data is predicted according to algorithm, is formed
One database with look-ahead function.
9. the monitoring device of -8 any grid protection side slope surface stress strains according to claim 1, which is characterized in that
The power supply device (4) includes device of solar generating.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029278A (en) * | 2018-06-29 | 2018-12-18 | 广西大学 | Grid protects the monitoring device and monitoring method of side slope surface stress strain |
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2018
- 2018-06-29 CN CN201821025153.1U patent/CN208269844U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029278A (en) * | 2018-06-29 | 2018-12-18 | 广西大学 | Grid protects the monitoring device and monitoring method of side slope surface stress strain |
| CN109029278B (en) * | 2018-06-29 | 2023-06-27 | 广西大学 | Device and method for monitoring surface stress strain of grille protection side slope |
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