CN110487910A - Face dam face slab dislocation and position finding and detection method based on vibrating sensing technology - Google Patents
Face dam face slab dislocation and position finding and detection method based on vibrating sensing technology Download PDFInfo
- Publication number
- CN110487910A CN110487910A CN201910682263.8A CN201910682263A CN110487910A CN 110487910 A CN110487910 A CN 110487910A CN 201910682263 A CN201910682263 A CN 201910682263A CN 110487910 A CN110487910 A CN 110487910A
- Authority
- CN
- China
- Prior art keywords
- nothing
- detection
- panel
- come
- acceleration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0232—Glass, ceramics, concrete or stone
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention relates to a kind of face dam face slab dislocations and position finding and detection method based on vibrating sensing technology, come to nothing first, it is determined that lower panels whether there is；The position then, it is determined that lower panels come to nothing；When panel, which exists, comes to nothing position, by comparing the difference of each detection zone measuring point vibration signal, position of coming to nothing is judged, final detection result is intuitively shown with image.Have the characteristics that light-duty, install convenient, it is easily operated and can be realized face slab dislocation positioning.
Description
Technical field
The present invention relates to face dam face slab dislocations and position finding and detection method based on vibrating sensing technology, belong to face dam safety
Detection technique field.
Background technique
During constantly building and run with concrete face rockfill dam, also there are some problems in some dams, influence
The operational safety of dam is arrived.Such as, domestic North-West Exit rock, dam is also constantly deforming after using 7 years；Australia
The dam Sai Shana of big Leah is also constantly being deformed after using 10 years, and the panel deformation at certain elevation is after water storage for a period of time
118mm, until 140mm after 9 years；There is structural crack in TianshengqiaoⅠdam and external some face dams,
The separation of panel and bed course may will affect the force-bearing situation of panel, and so as to cause the cracking of panel, this may cause dam production
Raw leak.
Since the material property of rockfill and bed course and panel is different, the above two are all noncontinuity, non-elastic material,
The latter is linear elastic materials.The elasticity modulus of the two is not of uniform size, causes deformation of the two under various operating conditions that cannot coordinate
Unanimously, there is situation of coming to nothing so as to cause panel bottom.And coming to nothing for concrete slab will lead to the stress shape of concrete slab
Condition changes, and under the variation of reservoir level, the uneven and deformation of stress will lead to the appearance of some phenomenons such as crack, into
And endanger the safe operation of dam.So scientific and effective detection method is needed to carry out some diseases such as the situation of coming to nothing of dam
Detection, determines the range of disease, provides data supporting for the operation conditions evaluation of dam and the use of maintenance reinforcement technique.
Aiming at the problem that concrete cavity beneath slab, engineers and technicians have studied geological radar, thermal infrared detection, hammering vibration
Dynamic method, seismic wave method, sonic method and Impact echo etc., when these technologies are come to nothing for relatively flat pavement concrete plate
Effect is preferable when detection, still, it is contemplated that the panel of reservoir concrete face rockfill dam has larger tilt angle, long roomy and thickness
It is thicker, on the one hand, testing staff can not stand on panel, can only be detected using the method for suspension operation, when using ground
Operation difficulty is larger when the detection methods such as matter radar, Impact echo, and equipment can not be preferably bonded with concrete surface plate face,
Cause institute's measured data discreteness also larger；On the other hand, since the panel of face dam is for the panel of concrete road surface
Length-width ratio and overall stiffness are different, and when being tested using vibratory drilling method, there is also larger for the selection of the size of exciting force and exciting mode
Difference.In addition, except determining how concrete slab lower part with the presence or absence of in addition to coming to nothing, carries out positioning and existing vibration inspection to coming to nothing
The technical problem that survey method does not solve.
Currently, although scholar both domestic and external has done many sunykatuib analysis and detection method to concrete face rockfill dam
Research, but these methods have certain limitation, for more accurate judgement dam safety status, safeguard the safety of dam
Operation, needs more accurate, convenient and fast detection means.
In view of face dam face slab dislocation detection method requires detecting instrument installation difficulty and detection operation difficulty,
On the basis of comparing existing detection detection method limitation, proposes the acceleration transducer using legerity type and be based on vibrating sensing
Technology carries out vacant analysis to panel and the method for position positioning of coming to nothing.
Summary of the invention
For overcome the deficiencies in the prior art, technical problem to be solved by the invention is to provide one kind to be based on vibrating sensing
The face dam face slab dislocation and position finding and detection method of technology, have that light-duty, install convenient, easily operated and to can be realized panel de-
The characteristics of sky positioning.
In order to solve the above technical problems, the present invention is implemented as follows:
A kind of face slab dislocation and position finding and detection method based on vibrating sensing technology, steps are as follows:
Step 1: judge that lower panels whether there is and come to nothing.Specific implementation method are as follows:
1. according to the size of panel, the material property of tilt angle and the lower part soil body selecting that panel detection is suitble to accelerate
Spend sensor；
2. installing 2 ~ 3 acceleration transducers to panel surface；Fig. 1 is that a kind of panel surface arranges acceleration transducer
Mode；
3. the momentum size needed for calculating selects excitation set to carry out transient impact effect to concrete slab；
4. after tapping panel, acquiring the time-history curves of the parameters such as amplitude, the acceleration of panel in time；
5. judging that lower panels whether there is according to the variation characteristic of panel fundamental frequency and coming to nothing.
Step 2: determine that lower panels come to nothing position.Specific implementation method are as follows:
1. the multiblock technique for carrying out lower panels vacant analysis is drawn according to the size, tilt angle and testing requirements of panel
System；Fig. 2 is a kind of division mode, and detection zone is divided into A, B, C and D totally 4 detection zones；
2. arranging a detection acceleration sensing on each grid node；
3. the momentum size needed for calculating selects excitation set to carry out transient impact effect to concrete slab, can be more
A position setting excitation point；
4. acquire the detection data of all detection acceleration transducers, then to the vibration informations such as the amplitude of acquisition, acceleration into
Row data processing, the data processing refer to: the amplitude of each Sensor or the variable quantity of acceleration are calculated, it is big according to variable quantity
Small to judge position of coming to nothing: the big region of variable quantity, which exists, comes to nothing；
5. using the otherness of acceleration transducer vibration signal by analyzing each detection, which subregion of concrete slab judged
In the presence of coming to nothing and which subregion needs further detection.
(3) when panel, which exists, comes to nothing position, by comparing the difference of each detection zone measuring point vibration signal, judgement is come to nothing
Position, final detection result are intuitively shown with image；When panel there are it is multiple come to nothing position when, by being vibrated in image
The relative size for comparing the degree that judges to come to nothing of signal difference.
When needing more accurate positioning, the same division mode of the detection zone where position of coming to nothing can be incited somebody to action
The detection zone is further divided into smaller detection zone, repeats the above steps.
The present invention has following positive effect:
(1) someone is compared in the vibratory drilling method of reinforced concrete pavement vacant analysis, is mixed in reservoir dam handled by the application
Solidifying soil lower panels vacant analysis and positioning have the characteristics that panel tilt angle is big, length-width ratio is big and area is big, so that existing
Reinforced concrete pavement Method of Void is difficult to the detection suitable for face dam face slab dislocation；Someone compare in steel tube concrete
The vibratory drilling method of native vacant analysis, concrete slab lower part vacant analysis and positioning have face in reservoir dam handled by the application
Plate suqare is big, fundamental frequency is high, come to nothing position dispersion, the problems such as positioning difficulty of coming to nothing.Lower panels vacant analysis side through the invention
Method can quickly determine that panel whether there is the orientation problem for position of coming to nothing and solve to come to nothing.
(2) it by using being easily installed and dismantling and the higher legerity type detection acceleration transducer of precision, not only keeps away
Exempt from panel installation or practical large-scale detection device, and accurately lower panels position of coming to nothing can have been positioned,
Detection effect is good, test result is with a high credibility.
Detailed description of the invention
Fig. 1 is the schematic diagram that detecting sensor is arranged on panel；
Fig. 2 is a kind of division mode schematic diagram in panel detection region；(fiber-optic grating sensor is followed successively by No. 1, No. 2,3 in figure
Number, No. 4, No. 5, No. 6, No. 7, No. 8 and No. 9 optical fibre grating acceleration sensors)
Fig. 3 is the schematic diagram that lower panels have region of individually coming to nothing, and the dash area in lower left corner region is de- for lower panels
Empty region；
Fig. 4 is the testing result figure that lower panels have region of individually coming to nothing, and RED sector indicates that the region exists and comes to nothing, with reality
Border is come to nothing position consistency；
Fig. 5 is lower panels there are the schematic diagram in two regions of coming to nothing, the shade in the region the lower left corner (1#) and the upper right corner (4#)
Part is that lower panels come to nothing region；
Fig. 6 is lower panels there are the testing result figure in two regions of coming to nothing, and RED sector indicates that the region exists and comes to nothing；With reality
Border is come to nothing position consistency.
Specific embodiment
The present invention is described in further detail With reference to embodiment.
Embodiment 1
A kind of face slab dislocation and position finding and detection method based on vibrating sensing technology, steps are as follows:
(1) it comes to nothing step 1: judging that lower panels whether there is.Specific implementation method are as follows:
1. according to the size of panel, the material property of tilt angle and the lower part soil body selecting that panel detection is suitble to accelerate
Spend sensor.In the present embodiment, concrete slab length is 4m, width 2m, with a thickness of 0.15m, the elastic modulus E of panel=
31GPa, Poisson's ratio , density ；According to numerical simulation analysis knot
Fruit, concrete slab bottom is not deposited when come to nothing, the natural frequency of vibration of concrete slab single order and second order be respectively 61.2Hz and
64.9Hz.This also requires the frequency acquisition of vibrating sensor to be at least up to 350Hz or more, so needing middle height in detection process
Frequency vibration sensor carries out vibration signals collecting to measuring point.
2. shown in referring to Fig.1,3 acceleration transducers (sensor 1,2,3) being formed a line and are installed to panel surface；
3. the momentum size needed for calculating selects excitation set to carry out transient impact effect to concrete slab.It calculates
It arrives, impact force size 2000N in the embodiment, action time 0.002s, i.e. momentum=4N s.
4. acquiring the time-history curves of the parameters such as amplitude, the acceleration of panel after tapping panel；
5. judging that lower panels whether there is according to the variation characteristic of panel fundamental frequency and coming to nothing.
(2) position step 2: determining lower panels come to nothing.Specific implementation method are as follows:
1. the multiblock technique for carrying out lower panels vacant analysis is drawn according to the size, tilt angle and testing requirements of panel
System；Referring to division mode shown in Fig. 2, detection zone is divided into A, B, C and D totally 4 detection zones；
2. arranging a detection with acceleration sensing (such as sensor 4,5,6,7,8,9) on each grid node；
3. the momentum size needed for calculating selects excitation set to carry out transient impact effect to concrete slab, can be more
A position setting excitation point (such as excitation point 1#, 2#, 3#, 4#)；
4. the detection data (as shown in table 1) of all detection acceleration transducers is acquired, then to the amplitude of acquisition, acceleration etc.
Vibration information carry out data processing (calculate the amplitude of each Sensor or the variable quantity of acceleration, according to variable quantity size come
Judge position of coming to nothing: the big region of variable quantity, which exists, comes to nothing)；
5. using the otherness of acceleration transducer vibration signal by analyzing each detection, which subregion of concrete slab judged
In the presence of coming to nothing and which subregion needs further detection.
(3) when panel there are come to nothing shown in shade position in Fig. 3 position when (1# indicate region), pass through each detection zone of comparison
The difference of domain measuring point vibration signal (variable quantity of acceleration), judges position of coming to nothing, and final detection result is carried out intuitive with image
It shows, as shown in Figure 4.And when panel there are it is multiple come to nothing position when, also can accurately detect, as shown in Figure 5 and Figure 6 (1#,
Region is indicated in 4#), the relative size for the degree of coming to nothing can be also judged by the comparison of vibration signal difference in image.
When needing more accurate positioning, the same division mode of the detection zone where position of coming to nothing can be incited somebody to action
The detection zone is further divided into smaller detection zone, repeats the above steps.
Measurement result
Table 1 be there is no coming to nothing in the case of, test at beating point in four sensors acquisition signal process, concrete slab is normal
In the case of corresponding position sensor acceleration maximum value.
The measuring point acceleration under normal circumstances of table 1
| Beating point 1# | No. 1 sensor | No. 2 sensors | No. 4 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.128 | 0.137 | 0.130 | 0.133 |
| Beating point 2# | No. 7 sensors | No. 8 sensors | No. 4 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.128 | 0.135 | 0.134 | 0.134 |
| Beating point 3# | No. 3 sensors | No. 2 sensors | No. 6 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.126 | 0.135 | 0.132 | 0.134 |
| Beating point 4# | No. 9 sensors | No. 8 sensors | No. 6 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.127 | 0.136 | 0.131 | 0.133 |
Table 2 is to test at beating point in four sensors acquisition signal process, on concrete slab in the case of there is single come to nothing
The maximum value (m/s2) of corresponding position sensor acceleration, and relative to without the acceleration relative variation in the case of coming to nothing
(%).By comparing the difference of each detection zone measuring point vibration signal (variable quantity of acceleration), come to nothing position, most final inspection are judged
It surveys result intuitively to be shown with image, as shown in Figure 4.In Fig. 4, the obvious elevated regions of acceleration relative variation are to exist
It comes to nothing region, it is consistent with actual conditions (arrow labeling position).
Measuring point acceleration in the case of table 2 individually comes to nothing
| Beating point 1# | No. 1 sensor | No. 2 sensors | No. 4 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.160 | 0.167 | 0.156 | 0.160 |
| Acceleration relative variation (%) | 25.32 | 22.00 | 20.01 | 19.99 |
| Beating point 2# | No. 7 sensors | No. 8 sensors | No. 4 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.135 | 0.143 | 0.145 | 0.139 |
| Acceleration relative variation (%) | 5.11 | 5.71 | 8.15 | 4.01 |
| Beating point 3# | No. 3 sensors | No. 2 sensors | No. 6 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.133 | 0.147 | 0.139 | 0.143 |
| Acceleration relative variation (%) | 5.16 | 8.98 | 5.35 | 6.43 |
| Beating point 4# | No. 9 sensors | No. 8 sensors | No. 6 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.129 | 0.141 | 0.133 | 0.138 |
| Acceleration relative variation (%) | 1.47 | 3.63 | 1.49 | 3.69 |
Table 3 is that there are in the case of multiple come to nothing, test at beating point in four sensor acquisition signal process, on concrete slab
The maximum value (m/s2) of corresponding position sensor acceleration, and relative to without the acceleration relative variation in the case of coming to nothing
(%).
By comparing the difference of each detection zone measuring point vibration signal (variable quantity of acceleration), position of coming to nothing is judged, most
Whole testing result intuitively shown with image, as shown in Figure 5.In Fig. 5, the obvious elevated regions of acceleration relative variation are
It is consistent with actual conditions (arrow labeling position) in the presence of region of coming to nothing.
Table more than 3 come to nothing in the case of measuring point acceleration
| Beating point 1# | No. 1 sensor | No. 2 sensors | No. 4 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.162 | 0.168 | 0.162 | 0.161 |
| Acceleration relative variation (%) | 26.7 | 22.82 | 24.21 | 21.02 |
| Beating point 2# | No. 7 sensors | No. 8 sensors | No. 4 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.136 | 0.147 | 0.142 | 0.143 |
| Acceleration relative variation (%) | 6.51 | 7.24 | 9.35 | 8.01 |
| Beating point 3# | No. 3 sensors | No. 2 sensors | No. 6 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.136 | 0.149 | 0.140 | 0.143 |
| Acceleration relative variation (%) | 6.42 | 9.01 | 7.24 | 7.98 |
| Beating point 4# | No. 9 sensors | No. 8 sensors | No. 6 sensors | No. 5 sensors |
| Acceleration maximum value (m/s2) | 0.147 | 0.157 | 0.149 | 0.152 |
| Acceleration relative variation (%) | 15.03 | 14.83 | 14.71 | 14.05 |
The above-mentioned specific embodiment technical solution that the invention is not limited in any way, it is all to use equivalent replacement or equivalent change
The mode changed technical solution obtained all falls within protection scope of the present invention.
Claims (5)
1. a kind of face slab dislocation and position finding and detection method based on vibrating sensing technology, steps are as follows:
Step 1: judge that lower panels whether there is and come to nothing；
Step 2: determine that lower panels come to nothing position；
Step 3: when panel, which exists, comes to nothing position, by comparing the difference of each detection zone measuring point vibration signal, judgement is come to nothing
Position, final detection result are intuitively shown with image；When panel there are it is multiple come to nothing position when, by being vibrated in image
The relative size for comparing the degree that judges to come to nothing of signal difference；
When needing more accurate positioning, can to the detection zone where position of coming to nothing with same division mode by the inspection
It surveys region and is further divided into smaller detection zone, repeat the above steps.
2. the face slab dislocation and position finding and detection method according to claim 1 based on vibrating sensing technology, which is characterized in that
It is as follows to judge that lower panels whether there is the specific implementation method come to nothing for step 1:
1. according to the size of panel, the material property of tilt angle and the lower part soil body selecting that panel detection is suitble to accelerate
Spend sensor；
2. installing 2 ~ 3 acceleration transducers to panel surface；
3. the momentum size needed for calculating selects excitation set to carry out transient impact effect to concrete slab；
4. acquiring the amplitude of panel, the time-history curves of acceleration after tapping panel；
5. judging that lower panels whether there is according to the variation characteristic of panel fundamental frequency and coming to nothing.
3. the face slab dislocation and position finding and detection method according to claim 1 based on vibrating sensing technology, which is characterized in that
Step 2: determine that lower panels come to nothing the specific implementation method of position are as follows:
1. the multiblock technique for carrying out lower panels vacant analysis is drawn according to the size, tilt angle and testing requirements of panel
System；
2. arranging a detection acceleration sensing on each grid node；
3. the momentum size needed for calculating selects excitation set to carry out transient impact effect to concrete slab, can be more
A position setting excitation point；
4. acquiring the detection data of all detection acceleration transducers, data processing then is carried out to the vibration information of acquisition；
5. using the otherness of acceleration transducer vibration signal by analyzing each detection, which subregion of concrete slab judged
In the presence of coming to nothing and which subregion needs further detection.
4. the face slab dislocation and position finding and detection method according to claim 1 based on vibrating sensing technology, which is characterized in that
Step 3 kind, when panel there are it is multiple come to nothing position when, come to nothing degree by the comparison judgement of vibration signal difference in image
Relative size.
5. the face slab dislocation and position finding and detection method according to claim 1 based on vibrating sensing technology, which is characterized in that
When needing more accurate positioning, to the detection zone where position of coming to nothing with same division mode by the detection zone into
One step is divided into smaller detection zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682263.8A CN110487910A (en) | 2019-07-26 | 2019-07-26 | Face dam face slab dislocation and position finding and detection method based on vibrating sensing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682263.8A CN110487910A (en) | 2019-07-26 | 2019-07-26 | Face dam face slab dislocation and position finding and detection method based on vibrating sensing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110487910A true CN110487910A (en) | 2019-11-22 |
Family
ID=68547677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910682263.8A Pending CN110487910A (en) | 2019-07-26 | 2019-07-26 | Face dam face slab dislocation and position finding and detection method based on vibrating sensing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110487910A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124770A (en) * | 2021-04-23 | 2021-07-16 | 贵州桥梁建设集团有限责任公司 | Concrete filled steel tube debonding and empty comprehensive judgment method based on real-time monitoring data |
| CN113237948A (en) * | 2021-04-16 | 2021-08-10 | 中国三峡建设管理有限公司 | Concrete pouring process monitoring device and method |
| CN116537125A (en) * | 2023-04-21 | 2023-08-04 | 广东省水利水电科学研究院 | Sluice bottom plate void area targeting positioning and repairing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446572A (en) * | 2008-12-17 | 2009-06-03 | 重庆交通大学 | Device for detecting cavity beneath structure panel by instantaneous impulsion method and detection method thereof |
| CN102175771A (en) * | 2011-01-18 | 2011-09-07 | 重庆市科学技术研究院 | Method for detecting steel tube void of concrete filled steel tube (CFST) arch bridge by utilizing transient impact method |
| CN206788115U (en) * | 2017-06-15 | 2017-12-22 | 贵州省交通规划勘察设计研究院股份有限公司 | A kind of Cement Concrete Pavement Slab vacant analysis device |
| CN108398485A (en) * | 2018-01-25 | 2018-08-14 | 上海众材工程检测有限公司 | A kind of hollowing detection method and system based on wall |
| CN108983303A (en) * | 2018-08-28 | 2018-12-11 | 大连民族大学 | Method based on foundation void under peak acceleration signal detection road deck |
-
2019
- 2019-07-26 CN CN201910682263.8A patent/CN110487910A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446572A (en) * | 2008-12-17 | 2009-06-03 | 重庆交通大学 | Device for detecting cavity beneath structure panel by instantaneous impulsion method and detection method thereof |
| CN102175771A (en) * | 2011-01-18 | 2011-09-07 | 重庆市科学技术研究院 | Method for detecting steel tube void of concrete filled steel tube (CFST) arch bridge by utilizing transient impact method |
| CN206788115U (en) * | 2017-06-15 | 2017-12-22 | 贵州省交通规划勘察设计研究院股份有限公司 | A kind of Cement Concrete Pavement Slab vacant analysis device |
| CN108398485A (en) * | 2018-01-25 | 2018-08-14 | 上海众材工程检测有限公司 | A kind of hollowing detection method and system based on wall |
| CN108983303A (en) * | 2018-08-28 | 2018-12-11 | 大连民族大学 | Method based on foundation void under peak acceleration signal detection road deck |
Non-Patent Citations (2)
| Title |
|---|
| 彭永恒等: "声振法检测室外水泥混凝土路面脱空试验", 《沈阳建筑大学学报》 * |
| 王骑等: "基于瞬态冲击响应的混凝土路面板脱空识别", 《西南交通大学学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237948A (en) * | 2021-04-16 | 2021-08-10 | 中国三峡建设管理有限公司 | Concrete pouring process monitoring device and method |
| CN113237948B (en) * | 2021-04-16 | 2024-06-11 | 中国三峡建设管理有限公司 | Concrete pouring process monitoring device and method |
| CN113124770A (en) * | 2021-04-23 | 2021-07-16 | 贵州桥梁建设集团有限责任公司 | Concrete filled steel tube debonding and empty comprehensive judgment method based on real-time monitoring data |
| CN116537125A (en) * | 2023-04-21 | 2023-08-04 | 广东省水利水电科学研究院 | Sluice bottom plate void area targeting positioning and repairing method |
| CN116537125B (en) * | 2023-04-21 | 2023-11-28 | 广东省水利水电科学研究院 | Sluice bottom plate void area targeting positioning and repairing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110487910A (en) | Face dam face slab dislocation and position finding and detection method based on vibrating sensing technology | |
| Bartoli et al. | In situ static and dynamic investigations on the “Torre Grossa” masonry tower | |
| CN104316108B (en) | Method for establishing and analyzing online monitoring system for 500kv power transmission tower in mountain environment | |
| RU2381470C2 (en) | Method of monitoring and predicting technical state of buildings and structures and system for monitoring and predicing technical state of buildings and structures (versions) | |
| Ahmadi et al. | Requirements for soil-specific correlation between shear wave velocity and liquefaction resistance of sands | |
| CN106638243B (en) | Cement concrete pavement slab bottom void identification robot and continuous identification method thereof | |
| CN101986150A (en) | Method for detecting internal defects of ancient building wood member by using stress wave and resistance instrument together | |
| Shirole et al. | Damage monitoring in rock specimens with pre-existing flaws by non-linear ultrasonic waves and digital image correlation | |
| CN207798745U (en) | A kind of detection device of tunnel lining structure density | |
| Gillich et al. | How to correlate vibration measurements with FEM results to locate damages in beams | |
| CN101539493A (en) | Symmetric signal method for structural damage diagnosis | |
| CN102296644A (en) | Vibration safety monitoring system and monitoring method for brace blasting demolition in foundation pit | |
| Baraccani et al. | Long-term seismometric monitoring of the two towers of Bologna (Italy): modal frequencies identification and effects due to traffic induced vibrations | |
| CN105004662A (en) | Method for testing contact rigidity of rock discontinuity structural plane, and apparatus thereof | |
| Azzara et al. | Long-term dynamic monitoring of medieval masonry towers | |
| Martini et al. | Validation of nondestructive methods for assessing stone masonry using artificial neural networks | |
| CN105371821B (en) | A kind of wind driven generator base slant detection method based on obliquity sensor | |
| RU66525U1 (en) | SYSTEM FOR MONITORING THE TECHNICAL CONDITION OF BUILDINGS AND STRUCTURES | |
| JP6997431B2 (en) | How to determine the amount of displacement of a building due to an earthquake | |
| WO2013180592A1 (en) | A method and system for evaluating a dam | |
| JP6921701B2 (en) | Ground survey method | |
| Simonin | Using seismic investigation to test the interface between two pavement layers | |
| RU2392403C1 (en) | Method for detection of changes in deflected mode of building or structure components | |
| CN206418379U (en) | A kind of Void Under Concrete Pavement Slab recognizes robot | |
| Tulebekova et al. | The Non-destructive testing of bored piles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191122 |