CN108398486A - Lossless detection method for the arrangement detection of large-scale Box-shaped Drainage Culvert structure reinforcing bars - Google Patents
Lossless detection method for the arrangement detection of large-scale Box-shaped Drainage Culvert structure reinforcing bars Download PDFInfo
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Abstract
The invention discloses a kind of lossless detection methods for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection, it is characterised in that the lossless detection method includes the following steps：Survey line is detected in the surface layout at least one of the Box-shaped Drainage Culvert；It is moved along the detection survey line to be detected to reinforcing bar distribution in the Box-shaped Drainage Culvert below the detection survey line using one or more combinations in ultrasonic mapping device, geological radar, 3-D supersonic imaging instrument.It is an advantage of the invention that：Boring and coring is not needed, the position of Box-shaped Drainage Culvert structure reinforcing bars arrangement can be fast and accurately detected using the method for non-breakage.
Description
Technical field
The invention belongs to rock and soil engineering detections and technical field of measurement and test, and in particular to one kind is for large-scale Box-shaped Drainage Culvert structure
The lossless detection method of reinforcing bar arrangement detection.
Background technology
Large-scale Box-shaped Drainage Culvert is the important foundation measure of municipal drainage system, and carry ensures municipal sewage collection system, transport
And improvement, safeguard the important function of city day-to-day operation.With urban construction fast development, traffic is increasingly busy, road load
Exacerbation, road broadening transformation and other peripheries engineering activities influence more and more, cause generally to be in long neglected and in disrepair at this stage
Large-scale Box-shaped Drainage Culvert there are some potential safety problemss.The leakage phenomenon of its medium-and-large-sized Box-shaped Drainage Culvert happens occasionally, by excavating
It is destroyed it was found that most of reason of leakage comes from box culvert overall structure, for example long period of soaking is in sewage, on the inside of box culvert
Surface layer's concrete is washed away by sewage to be corroded so that the phenomenon that seriously corroded often occurs in box culvert internal structure reinforcing bar.
Reinforcing bar maintains the overall structure of box culvert to a certain extent inside box culvert, if internal reinforcement corrosion is serious, box culvert
Overall structure can be affected, not only shorten the service life of structural system, increase maintenance cost, also give municipal sewage
Normal handling bring adverse effect, seriously jeopardize the order of city normal operation.
Invention content
According to the deficiencies of the prior art described above, It is an object of the present invention to provide one kind for large-scale Box-shaped Drainage Culvert structure
The lossless detection method of reinforcing bar arrangement detection, the lossless detection method pass through in several detection surveys line of Box-shaped Drainage Culvert surface layout
It is moved with right along detection survey line using one or more combinations in ultrasonic mapping device, geological radar, 3-D supersonic imaging instrument
Reinforcing bar distribution carries out non-destructive testing in Box-shaped Drainage Culvert below detection survey line.
The object of the invention realization is completed by following technical scheme：
A kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection, it is characterised in that the non-destructive testing
Method includes the following steps：Survey line is detected in the surface layout at least one of the Box-shaped Drainage Culvert；Using ultrasonic mapping device,
One or more combinations in matter radar, 3-D supersonic imaging instrument are moved along the detection survey line with to below the detection survey line
The Box-shaped Drainage Culvert in reinforcing bar distribution be detected.
The detection survey line can be one or both of main reinforcement detection survey line, stirrup detection survey line；Main ribs are examined
The arranged direction for surveying main reinforcement in survey line and the Box-shaped Drainage Culvert is in 80 ° -90 ° of angle；The stirrup detection survey line and the row
The arranged direction that water tank contains interior stirrup is in 80 ° -90 ° of angle.
The detection arrangement of measuring-line is in one or more on the upper surface of the Box-shaped Drainage Culvert, two sides.
The detection survey line is rearranged by several measuring points being spaced apart in the Box-shaped Drainage Culvert surface.
It is described ultrasound mapping device detection method be：To be combined by ultrasonic wave transmitting probe and ultrasonic wave receiving transducer and
At the ultrasonic mapping device be arranged on the first measuring point of the detection survey line, using the ultrasonic mapping device to described
The Box-shaped Drainage Culvert at measuring point is detected, and the ultrasonic wave transmitting probe emits ultrasonic wave letter into the Box-shaped Drainage Culvert
Number, the ultrasonic reflections signal that the ultrasonic wave receiving transducer is returned received from the Box-shaped Drainage Culvert internal reflection；It is surveyed along the detection
Line is sequentially completed the detection at remaining point position thereon, and the ultrasonic reflections signal obtained obtains after data processing
Ultrasonic Imaging Method sectional view；In the ultrasonic Imaging Method sectional view, in the Box-shaped Drainage Culvert reinforcement location show as with
The ultrasonic reflections signal of difference is generated at the interface of surrounding concrete medium；It is determined by the ultrasonic Imaging Method sectional view
Reinforcing bar distribution situation in the Box-shaped Drainage Culvert.
The ultrasound mapping device is by the ultrasonic wave transmitting probe and the ultrasonic wave receiving transducer with constant spacing group
It closes and constitutes, when being detected, the line midpoint between the ultrasonic wave transmitting probe and the ultrasonic wave receiving transducer is located at
On the measuring point.
The detection method of the geological radar is：The institute that will be composed of with constant spacing transmitting antenna and reception antenna
It states geological radar to be arranged on the first measuring point of the detection survey line, using the geological radar to the row at the measuring point
Water tank culvert is detected, and the transmitting antenna emits high frequency electromagnetic wave signal into the Box-shaped Drainage Culvert, when the high-frequency electromagnetic
Wave signal generates frequency electromagnetic waves when reaching the interface of the reinforcing bar and its surrounding concrete medium inside the Box-shaped Drainage Culvert
Reflection signal is simultaneously received by the reception antenna；It is sequentially completed the detection at remaining point position thereon along the detection survey line,
The high-frequency electromagnetic wave reflection signal obtained obtains geological radar method sectional view after data processing, passes through the geology thunder
The reinforcing bar distribution situation in the Box-shaped Drainage Culvert is determined up to method sectional view.
In the geological radar method sectional view, the position of the reinforcing bar shows as mixing with around it in the Box-shaped Drainage Culvert
The high-frequency electromagnetic wave reflection signal of difference is generated at the interface of solidifying soil-structure interactions.
The detection method of the 3-D supersonic imaging instrument is：The 3-D supersonic imaging instrument is arranged in the detection survey line
First measuring point on, at least two rows of ultrasonic probes are disposed on the 3-D supersonic imaging instrument；The 3-D supersonic imaging instrument
In a row described in ultrasonic probe emit ultrasonic signal into the concrete structure of the Box-shaped Drainage Culvert, when the ultrasonic wave
When signal encounters the interface of reinforcing bar and its surrounding concrete medium in the concrete structure of the Box-shaped Drainage Culvert, ultrasound is generated
Wave reflection signal and the ultrasonic wave of remaining unilateral row of row's ultrasonic probe described in the 3-D supersonic imaging instrument
Probe is received to obtain the ultrasonic reflections signal；After detection at the first measuring point to be done, surveyed along the detection
Line moves the 3-D supersonic imaging instrument and completes detection at remaining point position thereon；Using the 3-D supersonic imaging instrument according to
It is secondary to be detected acquisition ultrasonic reflections signal to detecting survey line described in each item, and the ultrasonic reflections signal is subjected to data
Processing obtains 3-D supersonic imaging method result map, is determined in the Box-shaped Drainage Culvert by the 3-D supersonic imaging method result map
Reinforcing bar is distributed.
In the 3-D supersonic imaging method result map, the reinforcement location shows as mixed with surrounding in the Box-shaped Drainage Culvert
The ultrasonic reflections signal of difference is generated at the interface of solidifying soil-structure interactions.
It is an advantage of the invention that：Boring and coring is not needed, draining can be fast and accurately detected using the method for non-breakage
The position of box culvert structure reinforcing bar arrangement.
Description of the drawings
It is detected along Box-shaped Drainage Culvert surface layout main reinforcement detection survey line using ultrasonic mapping device in Fig. 1 present invention
Schematic diagram；
Fig. 2 is to detect the signal that survey line is detected along Box-shaped Drainage Culvert surface layout stirrup using ultrasonic mapping device in the present invention
Figure；
Fig. 3 is the sectional view being detected to Box-shaped Drainage Culvert using ultrasonic mapping device in the present invention；
Fig. 4 is to detect the schematic diagram that survey line is detected along Box-shaped Drainage Culvert surface layout main reinforcement using geological radar in the present invention；
Fig. 5 is to detect survey line along Box-shaped Drainage Culvert surface layout stirrup using geology thunder in the present invention to reach the schematic diagram being detected；
Fig. 6 is the sectional view being detected to Box-shaped Drainage Culvert using geological radar in the present invention；
Fig. 7 is the sectional view being detected to Box-shaped Drainage Culvert using 3-D supersonic imaging instrument in the present invention；
Fig. 8 is to be shown along what Box-shaped Drainage Culvert surface layout main reinforcement detection survey line was detected using 3-D supersonic imaging instrument in the present invention
It is intended to；
Fig. 9 is to be shown along what Box-shaped Drainage Culvert surface layout stirrup detection survey line was detected using 3-D supersonic imaging instrument in the present invention
It is intended to.
Specific implementation mode
The feature of the present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with attached drawing, with
Convenient for the understanding of technical staff of the same trade：
Such as Fig. 1-9, respectively label is respectively in figure：Box-shaped Drainage Culvert 1, main reinforcement 2, main reinforcement 2a, main reinforcement 2b, stirrup 3, stirrup 3a, stirrup
3b, detection survey line 4, ultrasonic wave transmitting probe 5, ultrasonic wave receiving transducer 6, ultrasonic mapping device 7, geological radar 8, transmitting antenna
9, reception antenna 10, top concrete structure 11, lower concrete structure 12,3-D supersonic imaging instrument 13, ultrasonic probe 14.
Embodiment 1：As shown in Figure 1, 2, 3, the present embodiment is arranged more particularly to a kind of for large-scale Box-shaped Drainage Culvert structure reinforcing bars
The lossless detection method of cloth detection, the lossless detection method mainly carry out lossless inspection using ultrasonic mapping device to Box-shaped Drainage Culvert 1
It surveys, specifically includes following steps：
（1）As shown in Figure 1, 2, its interior main reinforcement 2 and the substantially trend of stirrup 3 are known according to the trend of Box-shaped Drainage Culvert 1, in large size
Several detection surveys line 4 of structural concrete surface layout of Box-shaped Drainage Culvert 1, the detection survey line 4 arranged include that main reinforcement detection is surveyed
Line 4 and stirrup detect survey line 4, as shown in Figure 1, main reinforcement detect survey line 4 in arrangement with Box-shaped Drainage Culvert 1 in the trend of main reinforcement 2 be in
80 ° -90 ° of angle；As shown in Fig. 2, stirrup detect survey line 4 arrangement when with Box-shaped Drainage Culvert 1 in stirrup 3 trend in 80 °-
90 ° of angle；Wherein, respectively detection survey line 4 is specifically made of several measuring point arrangements being spacedly distributed；
（2）Floating dust, the residue on 1 surface of Box-shaped Drainage Culvert at each point position are removed, ensures the smooth of contact surface as possible, a certain
The ultrasonic mapping device 7 of arrangement at the first point position of survey line 4 is detected, specifically by its interior ultrasonic wave transmitting probe 5 and ultrasound
The midpoint of line corresponds to and is arranged at the first measuring point between wave receiving transducer 6, and makes ultrasonic mapping device 7 and Box-shaped Drainage Culvert 1
Surface coupling it is good, and the spacing distance between ultrasonic wave transmitting probe 5 and ultrasonic wave receiving transducer 6 is fixed；It carries out later
Detection, data acquisition modes use flat survey method, make ultrasonic wave transmitting probe 5 to 1 inside configuration of Box-shaped Drainage Culvert transmitting ultrasonic wave letter
Number, at the same time, ultrasonic wave receiving transducer 6 receives between 1 inside configuration reinforcing bar of Box-shaped Drainage Culvert and concrete interface
Ultrasonic reflections signal is simultaneously stored, when ultrasonic reflections signal includes measured waveform, sound and wave amplitude；It should be noted that
In detection process, the ultrasonic mapping device 7 of host connection control, therefore emit ultrasonic signal in ultrasonic wave transmitting probe 5
Meanwhile synchronous triggering ultrasonic wave receiving transducer 6 is also opened work by host；
（3）After this to be done detects the detection on survey line 4 at first point position, ultrasonic mapping device 7 is moved to down
At one point position, and press step（2）In detection method the measuring point is detected, to obtain at the point position
Ultrasonic reflections signal；And so on, this all measuring points detection on survey line 4 is detected successively to finish；And with same side
Method completes the detection of all detection surveys line 4 on 1 surface of Box-shaped Drainage Culvert；
（4）By ultrasonic reflections signal data on collected each item detection survey line 4 at different measuring points position carry out data
Processing analysis forms two-dimensional ultrasonic Imaging Method sectional view, certainly, when there are main reinforcement detection surveys line 4 and stirrup to detect survey line 4
In the case of, it can also the three-dimensional detection image of split composition；Later according to two-dimensional ultrasonic Imaging Method sectional view and three-dimensional inspection
Altimetric image determines that exact reinforcing bar distribution situation in Box-shaped Drainage Culvert 1, reinforcing bar herein specifically refer to main reinforcement 2 and stirrup 3, specifically
Judgement is construed to：Strong reflection and diffraction are shown as according to reinforcing bar in two-dimensional ultrasonic Imaging Method sectional view and three-dimensional detection image
Deng the reflex being had differences with surrounding concrete medium, the definite distributing position of reinforcing bar in Box-shaped Drainage Culvert 1 can determine whether accordingly,
So that it is determined that in large-scale Box-shaped Drainage Culvert 1 structure main reinforcement 2 and stirrup 3 distribution.
Embodiment 2：As Figure 4-Figure 6, the present embodiment is arranged more particularly to a kind of for large-scale Box-shaped Drainage Culvert structure reinforcing bars
The lossless detection method of detection, the lossless detection method mainly carry out non-destructive testing Box-shaped Drainage Culvert 1 using geological radar 8, tool
Body includes the following steps：
（1）As shown in Figure 4,5, the trend that its interior main reinforcement 2 and stirrup 3 are known according to the trend of Box-shaped Drainage Culvert 1, in large-scale draining
Several detection surveys line 4 of structural concrete surface layout of box culvert 1, the detection survey line 4 arranged includes that main reinforcement detects 4 He of survey line
Stirrup detect survey line 4, as shown in figure 4, main reinforcement detect survey line 4 arrangement when with Box-shaped Drainage Culvert 1 in main reinforcement 2 trend in 80 °-
90 ° of angle；As shown in figure 5, stirrup detect survey line 4 in arrangement with Box-shaped Drainage Culvert 1 in stirrup 3 trend in 80 ° -90 °
Angle；Wherein, respectively detection survey line 4 is specifically made of several measuring point arrangements being spacedly distributed；
（2）Floating dust, the residue on 1 surface of Box-shaped Drainage Culvert at each point position are removed, ensures the smooth of contact surface as possible, a certain
It detects and arranges geological radar 8 at the first point position of survey line 4, specifically by line between transmitting antenna 9 and reception antenna 10
Midpoint correspond to be arranged at the first measuring point, the spacing distance between transmitting antenna 9 and reception antenna 10 is fixed；It carries out later
Detection, makes transmitting antenna 9 emit high frequency electromagnetic wave signal to 1 inside configuration of Box-shaped Drainage Culvert, and high frequency electromagnetic wave signal reaches draining
Reinforcing bar in box culvert 1（Main reinforcement 2 or stirrup 3）When with its surrounding concrete dielectric interface, due to existing between reinforcing bar and concrete
Apparent difference in dielectric constant, thus will produce at the interface of the two high-frequency electromagnetic wave reflection signal and by reception antenna 10
It receives；
（3）After this to be done detects the detection on survey line 4 at first point position, geological radar 8 is moved along detection survey line 4
It moves to next point position, and presses step（2）In detection method the measuring point is detected, to obtain the measuring point position
Set the high-frequency electromagnetic wave reflection signal at place；And so on, this all measuring points detection on survey line 4 is detected successively to finish；And
The detection of all detection surveys line 4 on 1 surface of Box-shaped Drainage Culvert is completed in the same way；
（4）By high-frequency electromagnetic wave reflection signal data on collected each item detection survey line 4 at different measuring points position carry out
Data Management Analysis obtains the geological radar method sectional view in each item detection 4 coverage area of survey line；Later according to the ground obtained
Matter radar method sectional view determines that exact reinforcing bar distribution situation in Box-shaped Drainage Culvert 1, reinforcing bar herein specifically refer to main reinforcement 2 and stirrup
3, it is specific to judge to be construed to：In geological radar method sectional view, the reinforcing bar in Box-shaped Drainage Culvert 1 show as strong reflection and diffraction etc. with
The reflex that surrounding concrete medium has differences judges the definite distributing position of reinforcing bar in Box-shaped Drainage Culvert 1 accordingly, to really
Determine the distribution situation of structure main reinforcement 2 and stirrup 3 in Box-shaped Drainage Culvert 1.
Embodiment 3：As Figure 7-9, the present embodiment is arranged more particularly to a kind of for large-scale Box-shaped Drainage Culvert structure reinforcing bars
The lossless detection method of detection, the lossless detection method mainly carry out Box-shaped Drainage Culvert 1 using 3-D supersonic imaging instrument 13 lossless
It detects, 48 ultrasonic probes 14 is disposed with altogether on 3-D supersonic imaging instrument 13, every 14 groups of 4 ultrasonic probes are in a row, altogether
Count 12 rows；It should be noted that the ultrasonic probe 14 in the present embodiment is popped one's head in using ultrasonic transmission/reception, ultrasound can be carried out
The transmitting and reception of wave；Specifically include following steps：
（1）The substantially trend that its interior main reinforcement 2a, 2b and stirrup 3a, 3b are known according to the trend of Box-shaped Drainage Culvert 1, in large-scale draining
Arrange that several detection surveys line 4, the detection survey line 4 arranged include main reinforcement on the surface of the top concrete structure 11 of box culvert 1
It detects survey line 4 and stirrup detects survey line 4, should keep being mutually parallel between the detection survey line 4 of same type, and adjacent detection survey line 4
Between spacing be 10cm；
As shown in figure 8, main reinforcement detect survey line 4 in arrangement with Box-shaped Drainage Culvert 1 in main reinforcement 2 trend in 80 ° -90 ° of angle；Such as
Shown in Fig. 9, stirrup detect survey line 4 in arrangement with Box-shaped Drainage Culvert 1 in stirrup 3 trend in 80 ° -90 ° of angle；
It should be noted that when detecting the distribution of main reinforcement 4 in 1 lower concrete structure 12 of Box-shaped Drainage Culvert, each item detects survey line 4
It should be arranged between adjacent stirrup 3 to obtain more preferably detection result；When in detection 1 lower concrete structure 12 of Box-shaped Drainage Culvert
Stirrup 5 when being distributed, each item detection survey line 4 should be arranged between adjacent main reinforcement 2 to obtain more preferably detection result；
（2）Floating dust, the residue on 1 surface of Box-shaped Drainage Culvert are removed, ensures the smooth of contact surface as possible；In a certain detection survey line 4
3-D supersonic imaging instrument 13 is arranged at first point position and is detected, and specific process is：In 3-D supersonic imaging instrument 9
Concrete structure internal emission ultrasonic signal of the one row's ultrasonic probe 14 into Box-shaped Drainage Culvert 1, when ultrasonic signal reaches
When the interface of main reinforcement 2a or stirrup 3a and its surrounding concrete medium in top concrete structure 11, it will generate ultrasonic wave
Reflect the ultrasonic probe 14 of unilateral remaining row on the right of signal and row's ultrasonic probe described in 3-D supersonic imaging instrument 13
It receives and is stored；Certainly, when ultrasonic signal reaches main reinforcement 2b in lower concrete structure 12 or stirrup 3b and its week
When enclosing the interface of concrete medium, ultrasonic reflections signal equally will also will produce and described in 3-D supersonic imaging instrument 13
The ultrasonic probe 14 of unilateral remaining row is received and is stored on the right of one row's ultrasonic probe；
Later, 3-D supersonic imaging instrument 13 is moved along detection survey line 4 and carries out one-time detection at interval of 10-20cm；
（3）According to step（2）, and so on, the inspection on all detection surveys line 4 is sequentially completed using 3-D supersonic imaging instrument 13
It surveys, and obtains the ultrasonic reflections signal on all detection surveys line 4, three-D ultrasonic is can get after the data processing through host
Imaging method result map, including cross-sectional data, panel data or three-dimensional data；Main reinforcement 2a, 2b and stirrup 3a in Box-shaped Drainage Culvert 1,
3b can show as the strong reflection phenomenon being had differences with surrounding concrete medium in 3-D supersonic imaging method result map.
Embodiment 4：As shown in figs 1-9, the present embodiment is arranged more particularly to a kind of for large-scale Box-shaped Drainage Culvert structure reinforcing bars
The lossless detection method of detection, the lossless detection method utilize the ultrasonic mapping device 7 described in embodiment 1-3, geology successively
Radar 8,3-D supersonic imaging instrument 13 carry out reinforcing bar distribution detection to Box-shaped Drainage Culvert 1, pass through three kinds of devices in above-described embodiment
It is detected, specific accuracy of detection can be improved.
Claims (10)
1. a kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection, it is characterised in that the lossless inspection
Survey method includes the following steps：Survey line is detected in the surface layout at least one of the Box-shaped Drainage Culvert；Using ultrasonic mapping device,
One or more combinations in geological radar, 3-D supersonic imaging instrument are moved along the detection survey line under the detection survey line
Reinforcing bar distribution is detected in the Box-shaped Drainage Culvert of side.
2. a kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection according to claim 1,
It is characterized in that the detection survey line can be one or both of main reinforcement detection survey line, stirrup detection survey line；Main ribs
The arranged direction for detecting main reinforcement in survey line and the Box-shaped Drainage Culvert is in 80 ° -90 ° of angle；Stirrup detection survey line with it is described
The arranged direction of stirrup is in 80 ° -90 ° of angle in Box-shaped Drainage Culvert.
3. a kind of non-destructive testing side for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection according to claim 1 or 2
Method, it is characterised in that the detection arrangement of measuring-line is in one or more on the upper surface of the Box-shaped Drainage Culvert, two sides.
4. a kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection according to claim 1,
It is characterized in that the detection survey line is rearranged by several measuring points being spaced apart in the Box-shaped Drainage Culvert surface.
5. a kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection according to claim 1,
It is characterized in that the detection method of the ultrasound mapping device is：It will be combined by ultrasonic wave transmitting probe and ultrasonic wave receiving transducer
Made of the ultrasonic mapping device be arranged on the first measuring point of the detection survey line, using the ultrasonic mapping device to institute
It states the Box-shaped Drainage Culvert at measuring point to be detected, the ultrasonic wave transmitting probe emits ultrasonic wave letter into the Box-shaped Drainage Culvert
Number, the ultrasonic reflections signal that the ultrasonic wave receiving transducer is returned received from the Box-shaped Drainage Culvert internal reflection；It is surveyed along the detection
Line is sequentially completed the detection at remaining point position thereon, and the ultrasonic reflections signal obtained obtains after data processing
Ultrasonic Imaging Method sectional view；In the ultrasonic Imaging Method sectional view, in the Box-shaped Drainage Culvert reinforcement location show as with
The ultrasonic reflections signal of difference is generated at the interface of surrounding concrete medium；It is determined by the ultrasonic Imaging Method sectional view
Reinforcing bar distribution situation in the Box-shaped Drainage Culvert.
6. a kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection according to claim 5,
It is characterized in that it is described ultrasound mapping device by the ultrasonic wave transmitting probe and the ultrasonic wave receiving transducer with constant spacing
Combination is constituted, when being detected, point in the line between the ultrasonic wave transmitting probe and the ultrasonic wave receiving transducer
In on the measuring point.
7. a kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection according to claim 1,
It is characterized in that the detection method of the geological radar is：By what is be composed of with constant spacing transmitting antenna and reception antenna
The geological radar is arranged on the first measuring point of the detection survey line, using the geological radar to described at the measuring point
Box-shaped Drainage Culvert is detected, and the transmitting antenna emits high frequency electromagnetic wave signal into the Box-shaped Drainage Culvert, when the high-frequency electrical
Magnetostatic wave signal generates high-frequency electromagnetic when reaching the interface of the reinforcing bar and its surrounding concrete medium inside the Box-shaped Drainage Culvert
Wave reflection signal is simultaneously received by the reception antenna；It is sequentially completed the inspection at remaining point position thereon along the detection survey line
It surveys, the high-frequency electromagnetic wave reflection signal obtained obtains geological radar method sectional view after data processing, by described
Matter radar method sectional view determines the reinforcing bar distribution situation in the Box-shaped Drainage Culvert.
8. a kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection according to claim 7,
It is characterized in that in the geological radar method sectional view, in the Box-shaped Drainage Culvert position of the reinforcing bar show as with around it
The high-frequency electromagnetic wave reflection signal of difference is generated at the interface of concrete medium.
9. a kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection according to claim 1,
It is characterized in that the detection method of the 3-D supersonic imaging instrument is：The 3-D supersonic imaging instrument is arranged in the detection to survey
On the first measuring point of line, at least two rows of ultrasonic probes are disposed on the 3-D supersonic imaging instrument；The 3-D supersonic imaging
Ultrasonic probe emits ultrasonic signal into the concrete structure of the Box-shaped Drainage Culvert described in a row in instrument, when the ultrasound
When wave signal encounters the interface of reinforcing bar and its surrounding concrete medium in the concrete structure of the Box-shaped Drainage Culvert, generate super
Sound wave reflects the ultrasound of signal and remaining unilateral row of row's ultrasonic probe described in the 3-D supersonic imaging instrument
Wave probe is received to obtain the ultrasonic reflections signal；After detection at the first measuring point to be done, along the detection
Survey line moves the 3-D supersonic imaging instrument and completes detection at remaining point position thereon；Utilize the 3-D supersonic imaging instrument
It is detected successively to detecting survey line described in each item and obtains ultrasonic reflections signal, and by the ultrasonic reflections signal into line number
3-D supersonic imaging method result map is obtained according to processing, is determined in the Box-shaped Drainage Culvert by the 3-D supersonic imaging method result map
Reinforcing bar distribution.
10. a kind of lossless detection method for large-scale Box-shaped Drainage Culvert structure reinforcing bars arrangement detection according to claim 9,
It is characterized in that in the 3-D supersonic imaging method result map, the reinforcement location is shown as and surrounding in the Box-shaped Drainage Culvert
The ultrasonic reflections signal of difference is generated at the interface of concrete medium.
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