CN110361389A - A kind of distress in concrete detection device and method based on shower water and gray level image - Google Patents
A kind of distress in concrete detection device and method based on shower water and gray level image Download PDFInfo
- Publication number
- CN110361389A CN110361389A CN201910693722.2A CN201910693722A CN110361389A CN 110361389 A CN110361389 A CN 110361389A CN 201910693722 A CN201910693722 A CN 201910693722A CN 110361389 A CN110361389 A CN 110361389A
- Authority
- CN
- China
- Prior art keywords
- positioning
- distress
- gray level
- concrete
- bar
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The present invention relates to distress in concrete detection technique fields, and disclose a kind of distress in concrete detection device based on shower water and gray level image, including engineering truck, the front end of the engineering truck is fixedly connected with sprinkling equipment, tank is sequentially installed in the wagon box of the engineering truck, the support rod of air-heater and " L " type, the tank is connected by aqueduct with sprinkling equipment, the lower end of the engineering truck be symmetrically installed there are two dry drying equipment, the support rod is connected with support plate by positioner far from one end of engineering truck, the other end of the support plate is fixedly connected with image capture device.The distress in concrete detection device and method based on shower water and gray level image, it is able to solve at present since distress in concrete is more elongated, non-cracked concrete and crack gray value difference are little, and crack periphery boundary is more fuzzy, cause segmentation effect poor, the bad problem of crack data statistics.
Description
Technical field
The present invention relates to distress in concrete detection technique field, specially a kind of coagulation based on shower water and gray level image
Soil cracking stitches detection device and method.
Background technique
Concrete is the main material of modern architecture, is widely used in the construction such as building structure, bridge and tunnel object, so
And concrete cracking is its health problem most frequently encountered in construction object life cycle, therefore, is carried out to distress in concrete
Detection and long-term observation are the important means of detection and monitoring concrete structure safe condition and health status.Currently, more grind
Study carefully and distress in concrete is detected using the method for gray level image shooting and image procossing with patent, but due to coagulation soil cracking
Seam is more elongated, and non-cracked concrete and crack gray value difference are little, and crack periphery boundary is more fuzzy, leads to segmentation effect
Poor, crack data statistics is bad.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it is examined the present invention provides a kind of based on the distress in concrete of shower water and gray level image
Measurement equipment and method have the good advantage of the image segmentation to distress in concrete, solve at present due to distress in concrete
More elongated, non-cracked concrete and crack gray value difference are little, and crack periphery boundary is more fuzzy, cause segmentation effect compared with
Difference, the bad problem of crack data statistics.
(2) technical solution
To realize the good purpose of the image segmentation to distress in concrete, the invention provides the following technical scheme: a kind of
Distress in concrete detection device based on shower water and gray level image, including engineering truck, the front end of the engineering truck are fixedly connected
There is sprinkling equipment, the support rod of tank, air-heater and " L " type, the water storage are sequentially installed in the wagon box of the engineering truck
Pond is connected by aqueduct with sprinkling equipment, and the lower end of the engineering truck is symmetrically installed there are two drying equipment of drying, described
The one end of support rod far from engineering truck is connected with support plate by positioner, and the other end of the support plate is fixedly connected with figure
As acquisition equipment.
Preferably, the positioner includes positioning bar, positioning pipe, positioning groove, spring and adjustment block, the positioning bar and
Support rod is connected far from one end of engineering truck, and one end of the positioning pipe is fixedly connected on support plate far from image capture device
One end, the positioning bar passes through positioning and manages one end nozzle far from support plate and extend into positioning pipe, the positioning pipe
Several positioning holes are uniformly and equidistantly offered on tube wall along the vertical direction, the positioning groove is provided with positioning bar far from support rod
On the bar wall of one end position, one end of the spring is fixedly connected on the slot bottom of positioning groove, the other end of the spring and positioning
Block is connected, and the adjustment block passes through the notch of positioning groove far from one end of spring and prolongs in a corresponding positioning hole thereto
It stretches.
Preferably, rubber stopper, the annular sidewall of the rubber stopper and the hole of positioning hole are slidably connected in the positioning hole
Wall offsets, and the rubber stopper is fixedly connected with drive rod far from one end of positioning bar, and the other end of the drive rod passes through positioning
The aperture in hole simultaneously extends outwardly.
Preferably, the seal groove that annular is offered on the inner tubal wall far from one end position of support plate is managed in the positioning, described
Sealing ring is equipped in seal groove, the bar wall of the internal ring wall and positioning bar of the sealing ring offsets, and the sealing ring and positioning bar are sliding
Dynamic connection.
Preferably, two sliding slots are symmetrically offered on the cell wall of the positioning groove, the adjustment block is close to spring one end position
Sliding block is symmetrically fixedly connected on the bar wall set, the sliding block is slidably connected in corresponding sliding slot.
Preferably, the drive rod is fixedly connected with pull handle far from one end of rubber stopper.
Preferably, restraining position ring block, the drive rod are fixedly connected on inner hole wall of the positioning hole far from positioning bar one end
It is arranged across stop collar.
Preferably, slide bar is fixedly connected in the sliding slot, the slide bar is arranged through sliding block, and sliding block sliding connects
It connects on slide bar.
Preferably, several rolling grooves are uniformly and equidistantly offered on the internal ring wall of the stop collar, in the rolling groove
Ball equipped with rolling, the ball is arranged far from the notch that one end of rolling groove slot bottom passes through rolling groove, and the ball rolls
It is dynamic to be connected on the bar wall of drive rod.
A kind of distress in concrete detection method based on shower water and gray level image, comprising the following steps:
S1: engineering truck is walked with slower speed, and sprinkling equipment sprays thinner water column and soaks to concrete surface,
Wetting range is Chinese herbaceous peony 2m；
S2: moisture at concrete free from flaw is quickly dried up using two blowing drying equipment blowout hot winds, but can not make to split
Moisture loses at seam；
S3: concrete gray level image is automatically snapped using image capture device, shooting speed is corresponding with engineering vehicle speed, makes
Lap is 10%-20%；
S4: using gray value partitioning algorithm Fast Segmentation crack binary map, and image spliced and stored, and establishes inspection
Survey the crack data picture library of concrete surface.
(3) beneficial effect
Compared with prior art, it is set the present invention provides a kind of based on the detection of the distress in concrete of shower water and gray level image
Standby and method, have it is following the utility model has the advantages that
1, it is somebody's turn to do distress in concrete detection device and method based on shower water and gray level image, passes through setting engineering truck, spray
Equipment, tank, air-heater and image capture device are drenched, drying time is long after soaking using distress in concrete, it is deep to soak color
The characteristics of, reinforce the little problem of the gray value difference in concrete and crack by the way of shower water, i.e., from the angle of image,
Rather than the angle of algorithm, solve the problems, such as that concrete image segmentation difficulty is big, and then realize the image segmentation of distress in concrete, together
Tradition is compared based on the concrete NDT method of gray level image, can greatly improve the quality of image taking, reduces crack segmentation
Difficulty, improve the accuracy of crack segmentation, and concrete structure and material strips will not be endangered.
Detailed description of the invention
Fig. 1 is that a kind of structure of the distress in concrete detection device based on shower water and gray level image proposed by the present invention is shown
It is intended to；
Fig. 2 is the enlarged drawing of part A in Fig. 1；
Fig. 3 is the enlarged drawing of part B in Fig. 1；
Fig. 4 is the enlarged drawing of C portion in Fig. 2；
Fig. 5 is a kind of image of the distress in concrete detection method based on shower water and gray level image point proposed by the present invention
Cut splicing step schematic diagram.
In figure: 1 engineering truck, 2 sprinkling equipments, 3 tanks, 4 air-heaters, 5 support rods, 6 blowing drying equipments, 7 positoning machines
Structure, 71 positioning bars, 72 positioning pipes, 73 positioning grooves, 74 springs, 75 adjustment blocks, 76 positioning holes, 8 support plates, 9 image capture devices,
10 rubber stoppers, 11 drive rods, 12 seal grooves, 13 sealing rings, 14 sliding slots, 15 sliding blocks, 16 pull handles, 17 stop collars, 18 slide bars, 19 rollings
Dynamic slot, 20 balls.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5, a kind of distress in concrete detection device based on shower water and gray level image, including engineering truck 1 are please referred to,
The front end of engineering truck 1 is fixedly connected with sprinkling equipment 2, and tank 3,4 and of air-heater are sequentially installed in the wagon box of engineering truck 1
The support rod 5 of " L " type, tank 3 are connected by aqueduct with sprinkling equipment 2, there are two the lower end of engineering truck 1 is symmetrically installed
Dry drying equipment 6, the one end of support rod 5 far from engineering truck 1 is connected with support plate 8 by positioner 7, support plate 8 it is another
One end is fixedly connected with image capture device 9, and drying time is long after being soaked using distress in concrete, soaks saturate feature,
Reinforce the little problem of the gray value difference in concrete and crack by the way of shower water, i.e., from the angle of image, rather than calculates
The angle of method solves the problems, such as that concrete image segmentation difficulty is big, and then realizes the image segmentation of distress in concrete, with tradition base
It is compared in the concrete NDT method of gray level image, the quality of image taking can be greatly improved, reduce the difficulty of crack segmentation,
The accuracy of crack segmentation is improved, and concrete structure and material strips will not be endangered.
Positioner 7 includes positioning bar 71, positioning pipe 72, positioning groove 73, spring 74 and adjustment block 75, positioning bar 71 and branch
Strut 5 is connected far from one end of engineering truck 1, and one end of positioning pipe 72 is fixedly connected on support plate 8 far from image capture device 9
One end, positioning bar 71 passes through positioning one end nozzle of the pipe 72 far from support plate 8 and extends into positioning pipe 72, positioning pipe 72
Several positioning holes 76 are uniformly and equidistantly offered on tube wall along the vertical direction, positioning groove 73 is provided with positioning bar 71 far from support
On the bar wall of 5 one end position of bar, one end of spring 74 is fixedly connected on the slot bottom of positioning groove 73, the other end of spring 74 and positioning
Block 75 is connected, and adjustment block 75 passes through the notch and a corresponding positioning hole thereto of positioning groove 73 far from one end of spring 74
Extend in 76, when needing to change the height of image capture device 9, the adjustment block 75 in positioning hole 76 is pressed into positioning groove 73
In, 75 forced compression spring 74 of adjustment block and 73 movement into positioning groove when adjustment block 75 is detached from from positioning hole 76, then are exchanged
Position pipe 72 applies pulling force, and the position position for changing positioning pipe 72 between bar 71 of transposing operates upper step, until adjustment block repeatedly
75 spring into suitable positioning hole 76, and then the position transposed between pipe 72 and bar 71 of transposing is carried out firm fixation, thus
Change the height of image capture device 9.
Rubber stopper 10 is slidably connected in positioning hole 76, the hole wall of the annular sidewall and positioning hole 76 of rubber stopper 10 offsets,
Rubber stopper 10 is fixedly connected with drive rod 11 far from one end of positioning bar 71, and the other end of drive rod 11 passes through the hole of positioning hole 76
Mouth simultaneously extends outwardly, and without tool, directly to drive rod force 11, drive rod 11 drives rubber stopper 10 in positioning hole 76
Movement can will spring into the adjustment block in positioning hole 76 75 and support positioning hole 76.
The seal groove 12 that annular is offered on positioning inner tubal wall of the pipe 72 far from 8 one end position of support plate, in seal groove 12
Equipped with sealing ring 13, the bar wall of the internal ring wall and positioning bar 71 of sealing ring 13 offsets, and sealing ring 13 is slidably connected with positioning bar 71,
Prevent rainwater from entering in positioning pipe 72 from the nozzle of positioning 72 upper end of pipe.
Two sliding slots 14, bar wall of the adjustment block 75 close to 74 1 end position of spring are symmetrically offered on the cell wall of positioning groove 73
On be symmetrically fixedly connected with sliding block 15, sliding block 15 is slidably connected in corresponding sliding slot 14, adjustment block 75 move when band movable slider
15 move synchronously in sliding slot 14, prevent adjustment block 75 from popping up positioning groove 73 by spring 74.
Drive rod 11 is fixedly connected with pull handle 16 far from one end of rubber stopper 10, by pull handle 16 easily to drive rod 11
Force.
Positioning hole 76 is fixedly connected with restraining position ring block 17 on the inner hole wall far from positioning 71 one end of bar, drive rod 11 passes through limit
Ring 17 is arranged, and rubber stopper 10 is prevented to be detached from from positioning hole 76.
Slide bar 18 is fixedly connected in sliding slot 14, slide bar 18 is arranged through sliding block 15, and sliding block 15 is slidably connected at slide bar
On 18 so that sliding block 15 moved in sliding slot 14 it is more stable.
Several rolling grooves 19 are uniformly and equidistantly offered on the internal ring wall of stop collar 17, are equipped with rolling in rolling groove 19
Ball 20, ball 20 are arranged far from the notch that one end of 19 slot bottom of rolling groove passes through rolling groove 19, and the rolling of ball 20 is connected to
On the bar wall of drive rod 11, drive rod 11 is clamped by the ball 20 being distributed in a ring, so that drive rod 11 is limiting
It is stable in ring 17 move.
A kind of distress in concrete detection method based on shower water and gray level image, comprising the following steps:
S1: engineering truck 1 is walked with slower speed, and sprinkling equipment 2 sprays thinner water column and moistens to concrete surface
Wet, wetting range is Chinese herbaceous peony 2m；
S2: moisture at concrete free from flaw is quickly dried up using two blowing drying equipment 6 blowout hot winds, but can not make to split
Moisture loses at seam；
S3: automatically snapping concrete gray level image using image capture device 9, and shooting speed is corresponding with 1 speed of engineering truck,
Make lap 10%-20%；
S4: using gray value partitioning algorithm Fast Segmentation crack binary map, and image spliced and stored, and establishes inspection
Survey the crack data picture library of concrete surface.
In conclusion being somebody's turn to do distress in concrete detection device and method based on shower water and gray level image, concrete is utilized
Drying time is long after the wetting of crack, soaks saturate feature, reinforces the gray scale in concrete and crack by the way of shower water
The not little problem of value difference solves that concrete image segmentation difficulty is big to ask that is, from the angle of image, rather than the angle of algorithm
Topic, and then realize the image segmentation of distress in concrete, compared with tradition is based on the concrete NDT method of gray level image, Ke Yi great
The big quality for improving image taking, reduces the difficulty of crack segmentation, improves the accuracy of crack segmentation, and will not be to concrete
Structure and material brings harm.
It should be noted that term " includes " or any other variant thereof is intended to cover non-exclusive inclusion, thus
So that the process, method, article or equipment for including a series of elements not only includes those elements, but also including not clear
The other element listed, or further include for elements inherent to such a process, method, article, or device.Do not having more
In the case where more limitations, the element that is limited by sentence "including a ...", it is not excluded that including process, the side of the element
There is also other identical elements in method, article or equipment.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of distress in concrete detection device based on shower water and gray level image, including engineering truck (1), it is characterised in that:
The front end of the engineering truck (1) is fixedly connected with sprinkling equipment (2), is sequentially installed with water storage in the wagon box of the engineering truck (1)
The support rod (5) in pond (3), air-heater (4) and " L " type, the tank (3) are connected by aqueduct with sprinkling equipment (2),
The lower end of the engineering truck (1) is symmetrically installed there are two drying drying equipment (6), and the support rod (5) is far from engineering truck (1)
One end is connected with support plate (8) by positioner (7), and the other end of the support plate (8) is fixedly connected with Image Acquisition and sets
Standby (9).
2. a kind of distress in concrete detection device based on shower water and gray level image according to claim 1, feature
Be: the positioner (7) includes positioning bar (71), positioning pipe (72), positioning groove (73), spring (74) and adjustment block
(75), positioning bar (71) is connected with support rod (5) far from the one end of engineering truck (1), one end of the positioning pipe (72)
It is fixedly connected on the one end of support plate (8) far from image capture device (9), it is separate that the positioning bar (71) passes through positioning pipe (72)
One end nozzle of support plate (8) simultaneously extends into positioning pipe (72), on the tube wall of the positioning pipe (72) along the vertical direction uniformly
Equidistant offers several positioning holes (76), and the positioning groove (73) is provided with positioning bar (71) far from support rod (5) one end
On the bar wall of position, one end of the spring (74) is fixedly connected on the slot bottom of positioning groove (73), the spring (74) it is another
End be connected with adjustment block (75), the adjustment block (75) far from spring (74) one end across positioning groove (73) notch and to
Wherein extend in a corresponding positioning hole (76).
3. a kind of distress in concrete detection device based on shower water and gray level image according to claim 2, feature
It is: is slidably connected rubber stopper (10) in the positioning hole (76), the annular sidewall and positioning hole of the rubber stopper (10)
(76) hole wall offsets, and the rubber stopper (10) is fixedly connected with drive rod (11), the biography far from one end of positioning bar (71)
The other end of lever (11) passes through the aperture of positioning hole (76) and extends outwardly.
4. a kind of distress in concrete detection device based on shower water and gray level image according to claim 2, feature
Be: the positioning pipe (72) is described far from the seal groove (12) for offering annular on the inner tubal wall of (8) one end position of support plate
Sealing ring (13) are equipped in seal groove (12), the internal ring wall of the sealing ring (13) and the bar wall of positioning bar (71) offset, described
Sealing ring (13) is slidably connected with positioning bar (71).
5. a kind of distress in concrete detection device based on shower water and gray level image according to claim 2, feature
It is: symmetrically offers two sliding slots (14) on the cell wall of the positioning groove (73), the adjustment block (75) is close to spring (74)
It is symmetrically fixedly connected on the bar wall of one end position sliding block (15), the sliding block (15) is slidably connected at corresponding sliding slot (14)
In.
6. a kind of distress in concrete detection device based on shower water and gray level image according to claim 3, feature
Be: the drive rod (11) is fixedly connected with pull handle (16) far from the one end of rubber stopper (10).
7. a kind of distress in concrete detection device based on shower water and gray level image according to claim 3, feature
Be: the positioning hole (76) is fixedly connected with restraining position ring block (17), the transmission on the inner hole wall far from positioning bar (71) one end
Bar (11) is arranged across stop collar (17).
8. a kind of distress in concrete detection device based on shower water and gray level image according to claim 5, feature
It is: is fixedly connected with slide bar (18) in the sliding slot (14), the slide bar (18) is arranged through sliding block (15), and the sliding block
(15) it is slidably connected on slide bar (18).
9. a kind of distress in concrete detection device based on shower water and gray level image according to claim 7, feature
It is: uniformly and equidistantly offers several rolling grooves (19), the rolling groove (19) on the internal ring wall of the stop collar (17)
Interior to be equipped with the ball (20) rolled, the ball (20) passes through the notch of rolling groove (19) far from one end of rolling groove (19) slot bottom
Setting, and the ball (20) rolling is connected on the bar wall of drive rod (11).
10. a kind of distress in concrete detection method based on shower water and gray level image, which comprises the following steps:
S1: engineering truck (1) is walked with slower speed, and sprinkling equipment (2) sprays thinner water column and moistens to concrete surface
Wet, wetting range is Chinese herbaceous peony 2m；
S2: moisture at concrete free from flaw is quickly dried up using two blowing drying equipment (6) blowout hot winds, but crack can not be made
Place's moisture loses；
S3: automatically snapping concrete gray level image using image capture device (9), and shooting speed same engineering truck (1) speed is corresponding,
Make lap 10%-20%；
S4: using gray value partitioning algorithm Fast Segmentation crack binary map, and image spliced and stored, and it is mixed to establish detection
The crack data picture library on solidifying soil surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693722.2A CN110361389A (en) | 2019-07-30 | 2019-07-30 | A kind of distress in concrete detection device and method based on shower water and gray level image |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693722.2A CN110361389A (en) | 2019-07-30 | 2019-07-30 | A kind of distress in concrete detection device and method based on shower water and gray level image |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110361389A true CN110361389A (en) | 2019-10-22 |
Family
ID=68222594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910693722.2A Withdrawn CN110361389A (en) | 2019-07-30 | 2019-07-30 | A kind of distress in concrete detection device and method based on shower water and gray level image |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110361389A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111990128A (en) * | 2020-07-30 | 2020-11-27 | 马鞍山中智科技有限公司 | Energy-concerving and environment-protective portable ecological container system of planting |
| CN116699113A (en) * | 2023-06-27 | 2023-09-05 | 中国水利水电第十二工程局有限公司 | Basalt fiber concrete crack detection device |
-
2019
- 2019-07-30 CN CN201910693722.2A patent/CN110361389A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111990128A (en) * | 2020-07-30 | 2020-11-27 | 马鞍山中智科技有限公司 | Energy-concerving and environment-protective portable ecological container system of planting |
| CN116699113A (en) * | 2023-06-27 | 2023-09-05 | 中国水利水电第十二工程局有限公司 | Basalt fiber concrete crack detection device |
| CN116699113B (en) * | 2023-06-27 | 2024-04-05 | 中国水利水电第十二工程局有限公司 | Basalt fiber concrete crack detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110361389A (en) | A kind of distress in concrete detection device and method based on shower water and gray level image | |
| CN103134745B (en) | High water capacity soil and bentonite clay material permeability test cylinder, device and testing method | |
| CN103698260A (en) | Novel-old pavement connecting layer water permeability detection method and detection device | |
| CN208721549U (en) | A kind of waterproof roll impermeability detection device | |
| CN103822864A (en) | Testing method for water permeability resistance of concrete core sample | |
| CN212748650U (en) | Impervious detection device of building block | |
| CN105259336B (en) | Health moisture traveling locus method of testing in a kind of cement and concrete pavement | |
| CN207396279U (en) | A kind of waterproof tester of fabric | |
| CN207020047U (en) | A kind of concrete impermeability detection means | |
| CN108661035A (en) | Packer permeability test equipment | |
| CN207280918U (en) | A kind of bituminous pavement seepage test matching operation instrument | |
| CN208953534U (en) | A kind of collapsed gully erosion dynamic monitoring system based on laser scanning | |
| CN107817175B (en) | Progressive dry-wet cycle test device and use method | |
| CN206477381U (en) | A kind of adjustable rain collector of capacity area | |
| CN205333486U (en) | Multiple condition of concrete contrast impermeability test device | |
| CN207439875U (en) | A kind of material impermeability detection device | |
| CN108088777B (en) | Material impermeability detection device and detection method thereof | |
| CN208996450U (en) | A kind of civil construction reserving hole template | |
| CN206346169U (en) | A kind of quick water fetching device of drawing-in type static sounding | |
| CN218099008U (en) | Building engineering quality detection device | |
| CN216207645U (en) | Concrete detection sampling device for building site | |
| CN215060420U (en) | Sealing treatment device for urban rainwater and sewage pipe network construction | |
| JPS5565637A (en) | Method of investigating and testing continuous underground wall | |
| CN213022142U (en) | Wide outer wall trickle test device of application scope | |
| CN212963851U (en) | Gas tightness self-checking visor |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191022 |
|
| WW01 | Invention patent application withdrawn after publication |