CN206348121U - Survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection - Google Patents
Survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection Download PDFInfo
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- CN206348121U CN206348121U CN201621433691.5U CN201621433691U CN206348121U CN 206348121 U CN206348121 U CN 206348121U CN 201621433691 U CN201621433691 U CN 201621433691U CN 206348121 U CN206348121 U CN 206348121U
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- draining pipe
- resistivity
- pipe culvert
- survey line
- gaging
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- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 238000007689 inspection Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 201000004569 Blindness Diseases 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 241001269238 Data Species 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses a kind of survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection, it is characterised in that：Including high-density resistivity survey line and some resistivity CT gaging holes；Trend of the high-density resistivity survey line along the draining pipe culvert is laid in the ground region on the outside of the draining pipe culvert, the leakage anomaly region for detecting the draining pipe culvert；The resistivity CT gaging holes are distributed in the non-seepage region in the leakage anomaly region and its outside.The utility model has the advantages that, high-density resistivity survey line can detect leakage anomaly regional location substantially, while across hole resistivity CT gaging holes are accurately positioned inside leakage anomaly region to leak location；The leak location of draining pipe culvert can be quickly and accurately positioned using said apparatus, it is to avoid the large-scale excavation of blindness is carried out in detection process.
Description
Technical field
The utility model belongs to rock and soil engineering detection and testing field, and in particular to one kind is used for large-scale draining pipe culvert seepage
The survey line and gaging hole arrangement of detection.
Background technology
Large-scale draining pipe culvert is the important infrastructure of municipal drainage system, carry ensure municipal sewage ordered collection,
Transport and improvement, safeguard the important function of city day-to-day operation.As urban construction is fast-developing, traffic is increasingly busy, road
Exacerbation, road broadening transformation and other periphery engineering activity influences of load are more and more, cause at this stage generally in older
There is certain potential safety hazard in large-scale draining pipe culvert in bad repair, the Seepage that its medium-and-large-sized drainpipe is contained happens occasionally, to it
Leak detection work is more and extremely more urgent.
Current Domestic is still more single on large-scale draining pipe culvert leak detection technological means, relies primarily on excavation etc.
Method determines the leak location of large-scale draining pipe culvert, but these methods are damaged to place, input cost is higher and the cycle is long,
The technical need in market can not be met, current market lacks a set of quick, effective, accurately large-scale draining pipe culvert leak detection
Method.
The content of the invention
The purpose of this utility model is for large-scale draining pipe culvert according to above-mentioned the deficiencies in the prior art part there is provided one kind
The survey line and gaging hole arrangement of leak detection, the structure can realize large-scale draining pipe culvert using non-damaged resistivity method
Leak detection.
The utility model purpose is realized and completed by following technical scheme：
Plant the survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection, it is characterised in that：Including high density
Resistivity survey line and some resistivity CT gaging holes；Trend of the high-density resistivity survey line along the draining pipe culvert is laid in
In ground region on the outside of the draining pipe culvert, the leakage anomaly region for detecting the draining pipe culvert；The resistivity CT
Gaging hole is distributed in the non-seepage region in the leakage anomaly region and its outside.
The high-density resistivity Hydrographic General Line is in the both sides ground of the draining pipe culvert；The high-density resistivity is surveyed
Line is collectively formed by some detecting electrodes being spaced apart and by the detection cable of each detecting electrode connection, the detection
Electrode is vertically inserted in ground.
Each detecting electrode positioned at the draining pipe culvert both sides is respectively by single or many detection cable series connection connection.
The length of the high-density resistivity survey line is at least 5 times of the draining pipe culvert bottom boundaries buried depth.
The depth of the resistivity CT gaging holes is more than the bottom circle buried depth 5m of the draining pipe culvert.
Spacing between the resistivity CT gaging holes is not more than the 1/2 of the resistivity CT gaging hole depth.
The utility model has the advantages that, high-density resistivity survey line can detect leakage anomaly regional location substantially, together
When across hole resistivity CT gaging holes leak location is accurately positioned inside leakage anomaly region；Can be fast using said apparatus
The leak location of draining pipe culvert is precisely located in speed, it is to avoid the large-scale excavation of blindness is carried out in detection process.
Brief description of the drawings
Fig. 1 is the top view of the utility model middle-high density resistivity arrangement of measuring-line structure；
Fig. 2 is the top view of the arrangement of across hole resistivity CT gaging holes in the utility model.
Embodiment
Feature of the present utility model and other correlated characteristics are made further specifically by embodiment below in conjunction with accompanying drawing
It is bright, in order to the understanding of technical staff of the same trade：
Mark 1-7 is respectively in such as Fig. 1-2, figure：Draining pipe culvert 1, high-density resistivity survey line 2, detection cable 3, detection
Electrode 4, leakage anomaly region 5, across hole resistivity CT gaging holes 6, non-seepage region 7.
Embodiment：As shown in Figure 1, 2, the present embodiment is specifically related to a kind of survey line for large-scale draining pipe culvert leak detection
And gaging hole arrangement, it includes high-density resistivity survey line 2 and some resistivity CT gaging holes 6；High-density resistivity survey line 2
It is laid in along the trend of draining pipe culvert 1 in the base surface area of the outside annex of draining pipe culvert 1, the seepage for detecting draining pipe culvert 1
Abnormal area 5；Resistivity CT gaging holes 6 are distributed in the non-seepage region 7 in leakage anomaly region 5 and its outside.
As shown in figure 1, in the present embodiment, one section of high-density resistivity is respectively laid with the ground of the both sides of draining pipe culvert 1
Survey line 2；The cloth set direction of every high-density resistivity survey line 2 is parallel with the axis direction of draining pipe culvert 1；High-density resistivity is surveyed
Line 2 includes detection cable 3 and some spaced detecting electrodes 4；Cloth of the detecting electrode 4 along high-density resistivity survey line 2
Line direction is arranged at intervals；Detecting electrode 4 is vertically plugged in inside ground；In the present embodiment, draining pipe culvert 1 both sides
Detecting electrode 4 is by detecting that cable 3 is sequentially connected.In the present embodiment, the number phase of the detecting electrode 4 of the both sides of draining pipe culvert 1
Together, and it is symmetrically distributed in the both sides of draining pipe culvert 1.
As shown in figure 1, the length of highly dense resistivity survey line 2 and the number of detecting electrode 4 are needed according to large-scale draining pipe culvert 1
Buried depth and field condition choosing comprehensively determine.Under conditions of detecting electrode number is certain, high-density resistivity survey line 2
Length is bigger, and investigation depth is deeper, and detection accuracy is lower.Ensure that the seepage model for detecting large-scale draining pipe culvert 1
Enclose, the total length of the highly dense resistivity survey line 2 of the large-scale both sides of draining pipe culvert 1 at least needs satisfaction to detect large-scale drainpipe
The position of depth where containing 1 bottom boundaries buried depth.Under normal circumstances, the length of highly dense resistivity survey line 2 is about large-scale draining pipe culvert
At 5 times of bottom boundaries buried depth, above-mentioned detection minimum requirements can be met.The length of highly dense resistivity survey line 2 can suitably increase,
The doubtful seepage region of large-scale draining pipe culvert 1 can faster be determined.The selection of spacing between detecting electrode 4 is excessive, can cause
Detection accuracy step-down.In the present embodiment, large-scale draining pipe culvert bottom boundaries buried depth is 7m, can be from 50 electrodes, electrode spacing
For 1m or from 100 electrodes, electrode spacing is 0.5m.
As shown in Fig. 2 resistivity CT gaging holes 6 are used to combine resistivity CT detection measurement results, the tool of draining pipe culvert 1 is determined
Body leak location；In the present embodiment, in order to ensure to meet detection depth and measurement accuracy, the depth of resistivity CT gaging holes 6 is big
In the bottom circle buried depth about 5m of draining pipe culvert 1；Spacing between resistivity CT gaging holes 6 is not more than the depth of resistivity CT gaging holes 6
1/2；The resistivity CT gaging holes 6 in leakage anomaly region 5 need adjacent with the resistivity CT gaging holes 6 in non-seepage region 7 simultaneously.Make
Coordinate corresponding instrument to carry out across hole resistivity CT detections to leakage anomaly region 5 with resistivity CT gaging holes 6, seepage can be obtained
The resistivity CT cross-sectional datas of abnormal area 5；The precision of resistivity CT cross-sectional datas is higher, can accurately reflect drainpipe
The leak location and seepage situation of culvert 1.
Drainpipe is detected using the survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection of the present embodiment
The leakage scenarios of culvert specifically include following steps：
As shown in figure 1, laying high-density resistivity survey line 2 along along ground of the trend of draining pipe culvert 1 on the outside of it；In cloth
During putting, distance is demarcated using tape measure, by the detecting electrode 4 equidistantly soil of insertion ground region, makes highly dense resistivity
The bearing of trend of survey line 2 is as consistent as possible with the trend of large-scale draining pipe culvert 1.Angle in some insertion of detecting electrode 4 ground
And depth is consistent as far as possible, detecting electrode 4 is inserted perpendicularly into ground as far as possible.Pass through inspection between adjacent detecting electrode 4
Survey cable 3 to connect, some detecting electrodes 4 of the both sides of draining pipe culvert 1 are by detecting that the connection of cable 3 forms high-density resistivity survey line
2。
As shown in figure 1, after high-density resistivity survey line 2 is deployed, will be simultaneously according to the operation of resistivity acquisition instrument
The resistivity data between each detecting electrode 4 on high-density resistivity survey line 2 is gathered, and the resistivity data is carried out anti-
Drill processing and obtain resistivity profile data, using resistivity of the resistivity in seepage region less than non-seepage region as decision principle,
The scope in leakage anomaly region is judged according to resistivity data or resistivity profile data analysis.Under normal conditions, drainpipe
The soil resistivity for containing 1 seepage region is typically smaller than the resistivity in non-seepage region；Therefore resistivity data or resistivity profile
Data display is that the region of low-resistance can be determined that as leakage anomaly region 5.
As shown in Fig. 2 after being determined in the doubtful position of leakage anomaly region 5, doubtful leakage anomaly region 5 is carried out across
Hole resistivity CT is detected；What across hole resistivity CT was detected concretely comprises the following steps：By some across hole arranged for interval of resistivity CT gaging holes 6 in
Leakage anomaly region 5 and its neighbouring non-seepage region 7, across the hole resistance of each across hole resistivity CT gaging holes 6 is gathered using instrument
Across hole resistivity CT data are carried out the resistivity CT cross-sectional datas that Inversion Calculation obtains opposite position by rate CT data.With height
The resistivity profile data that density resistance rate method is obtained are compared, and the resolution ratio of resistivity CT cross-sectional datas is higher；According to high density
The resistivity CT cross-sectional datas that the resistivity profile data and across hole resistivity CT gaging holes 6 that resistivity survey line is obtained are obtained, with
The resistivity in leakage anomaly region 5 is decision principle less than the resistivity in non-seepage region 7, further judges oozing for draining pipe culvert
Leak position.In leakage anomaly region 5, the both sides of draining pipe culvert 1 are provided with across hole resistivity CT gaging holes, so measure across
Hole resistivity CT data can position the specific leak location of draining pipe culvert, can provide and effectively refer to for follow-up blocking construction
Lead.
The advantageous effects of the present embodiment are：High-density resistivity survey line can detect leakage anomaly region position substantially
Put, while across hole resistivity CT gaging holes are accurately positioned inside leakage anomaly region to leak location；Using said apparatus
The leak location of draining pipe culvert can quickly and accurately be positioned, it is to avoid the large-scale excavation of blindness is carried out in detection process.
Claims (6)
1. a kind of survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection, it is characterised in that：Including high density
Resistivity survey line and some resistivity CT gaging holes；Trend of the high-density resistivity survey line along the draining pipe culvert is laid in
In ground region on the outside of the draining pipe culvert, the leakage anomaly region for detecting the draining pipe culvert；The resistivity CT
Gaging hole is distributed in the non-seepage region in the leakage anomaly region and its outside.
2. a kind of survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection according to claim 1, its
It is characterised by：The high-density resistivity Hydrographic General Line is in the both sides ground of the draining pipe culvert；The high-density resistivity
Survey line is collectively formed by some detecting electrodes being spaced apart and by the detection cable of each detecting electrode connection, the inspection
Electrode is surveyed vertically to be inserted in ground.
3. a kind of survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection according to claim 2, its
It is characterised by：Each detecting electrode positioned at the draining pipe culvert both sides is connected by single or many detection cable series connection respectively
Connect.
4. a kind of survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection according to claim 2, its
It is characterised by：The length of the high-density resistivity survey line is at least 5 times of the draining pipe culvert bottom boundaries buried depth.
5. a kind of survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection according to claim 1, its
It is characterised by：The depth of the resistivity CT gaging holes is more than the bottom circle buried depth 5m of the draining pipe culvert.
6. a kind of survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection according to claim 5, its
It is characterised by：Spacing between the resistivity CT gaging holes is not more than the 1/2 of the resistivity CT gaging hole depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621433691.5U CN206348121U (en) | 2016-12-26 | 2016-12-26 | Survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621433691.5U CN206348121U (en) | 2016-12-26 | 2016-12-26 | Survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection |
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| Publication Number | Publication Date |
|---|---|
| CN206348121U true CN206348121U (en) | 2017-07-21 |
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ID=59317394
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621433691.5U Active CN206348121U (en) | 2016-12-26 | 2016-12-26 | Survey line and gaging hole arrangement for large-scale draining pipe culvert leak detection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478392A (en) * | 2017-09-21 | 2017-12-15 | 河海大学 | Based on radon isotope it is coastal enter drainage gate facility leakage detection method |
| CN107727337A (en) * | 2017-11-14 | 2018-02-23 | 中国海洋大学 | A kind of leakage detection method of the foundation pit enclosure structure based on micro logging electrical method |
| CN108413900A (en) * | 2018-02-02 | 2018-08-17 | 上海岩土工程勘察设计研究院有限公司 | Check and evaluation method for large-scale Box-shaped Drainage Culvert structural defect |
-
2016
- 2016-12-26 CN CN201621433691.5U patent/CN206348121U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478392A (en) * | 2017-09-21 | 2017-12-15 | 河海大学 | Based on radon isotope it is coastal enter drainage gate facility leakage detection method |
| CN107478392B (en) * | 2017-09-21 | 2018-04-20 | 河海大学 | It is coastal into drainage gate facility leakage detection method based on radon isotope |
| CN107727337A (en) * | 2017-11-14 | 2018-02-23 | 中国海洋大学 | A kind of leakage detection method of the foundation pit enclosure structure based on micro logging electrical method |
| CN108413900A (en) * | 2018-02-02 | 2018-08-17 | 上海岩土工程勘察设计研究院有限公司 | Check and evaluation method for large-scale Box-shaped Drainage Culvert structural defect |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 200032 18, building 681, Xiao Mu Qiao Road, Xuhui District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Country or region after: China Address before: 200032 18, building 681, Xiao Mu Qiao Road, Xuhui District, Shanghai. Patentee before: SHANGHAI GEOTECHNICAL INVESTIGATIONS & DESIGN INSTITUTE Co.,Ltd. Country or region before: China |