CN108426174A - A kind of detection method of underground piping - Google Patents
A kind of detection method of underground piping Download PDFInfo
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- CN108426174A CN108426174A CN201810614736.6A CN201810614736A CN108426174A CN 108426174 A CN108426174 A CN 108426174A CN 201810614736 A CN201810614736 A CN 201810614736A CN 108426174 A CN108426174 A CN 108426174A
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- pipe
- under test
- pipeline
- pipe under
- bead
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/46—Launching or retrieval of pigs or moles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/30—Inspecting, measuring or testing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of detection methods of underground piping, include the following steps：Reconnaissance trip；Upstream line blocks；Pipe under test is cleared up；Pipe under test patency detects；Pipeline location depthkeeping operation；Data collection and arrangement；When pipe under test patency detects, pipe bead is fallen in the entrance placement of pipe under test, the diameter for falling pipe bead is equal to the pipe shaft diameter of pipe under test, falls on pipe bead and is also associated with connecting rope, the inlet of pipe under test is also placed with for pushing the driving device for falling pipe bead and being moved into pipeline.Pass through above-mentioned setting, multiple tracks processing in conjunction with reconnaissance trip and to pipe detection early period, by pipe-dredging as possible before to duct survey, so that pipeline is met the requirement of detection, especially also has the step of pipeline patency detection, can further visit the patency in pigging road, to when subsequent positioning depthkeeping operation more accurately and conveniently, also can be more systematic and comprehensive, said program can face the detection of most of underground piping, applicability higher.
Description
Technical field
The present invention relates to underground pipe network detection technique field, more particularly to a kind of detection method of underground piping.
Background technology
With the rapid development of Chinese Urbanization level, many cities have formd in large scale, complicated underground
Comprehensive pipe network system, with the frequent change of underground pipe network, a large amount of data is needed to manage and be handled, the craft of conventional inefficiencies
Way to manage is difficult to meet the needs of the fast development of urban construction now.From the angle of review on management of modern cities, an energy is fast
Speed provides really and accurately Urban Buried Pipeline Network data, and can realize the functions such as quick search, comprehensive analysis, and is city management
The offers such as daily management, design and construction with decision-making section, analysis statistics, programmed decision-making, development prediction are multi-level, it is multi-functional,
The Underground Pipe Network Information System of various integrated services has been the task that urban construction and development must solve.Simultaneously as some are existing
For the development of surveying and mapping technology, such as GPS technology, numerical map measuring technique, detection technologies for underground pipes, indoor and field integration open country
The extensive use of the technologies such as outer data acquisition has greatly facilitated the development of Underground Pipe Network Information System and perfect.
General Survey for Urban Underground Pipeline be reinforce one of urban underground space management and urban planning, construction and management it is important
Element task needs to detect and surveys groundwater supply within the scope of area's boundary lines of roads, draining（Rainwater, sewage）, combustion gas, electric power, street lamp, lead to
The plan-position of the municipal pipelines such as news, buried depth, investigate the attributes such as caliber, material, the voltage of pipeline.
If application publication number is discloses a kind of underground piping detection method in the Chinese patent document of CN107507165A,
Its technical solution is to take unmanned plane, according to the underground piping distributing position first obtained, generates and checks route, control unmanned plane edge
It inspection route and opens video camera, once imaged at regular intervals, then by under the processing acquisition entirely to image
The case where pipeline.
But often will appear depositional phenomenon it is found that the case where underground piping is generally complex in practice of construction,
The phenomenon that dislocation, disconnection, deformation or rupture can also be had by various barriers or even the old pipeline in part either occur, if
It is operated using unmanned plane according to said program, feasibility is not high, therefore still needs to propose a kind of higher pipe of applicability
Road detection method.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of detection method of underground piping, tool
There are the higher effect of applicability, more systematic and generalization.
The present invention above-mentioned technical purpose technical scheme is that, a kind of detection side of underground piping
Method includes the following steps：
S1, reconnaissance trip, including measure the trial test of the exploration and measurement method at control point；
S2, upstream line block；
S3, pipe under test cleaning；
S4, the detection of pipe under test patency；
S5, pipeline location depthkeeping operation；
S6, data collection and arrangement；
Wherein, when pipe under test patency detects in S4, pipe bead is fallen in the entrance placement of pipe under test, the pipe bead that falls
Diameter is equal to the pipe shaft diameter of pipe under test, and described fall on pipe bead is also associated with traction rope, the inlet of the pipe under test
It is also placed with for pushing the driving device for falling pipe bead and being moved into pipeline.
By using above-mentioned technical proposal, the multiple tracks processing in conjunction with reconnaissance trip and to pipe detection early period, as possible right
By pipe-dredging before duct survey, pipeline is made to meet the requirement of detection, especially also has the step of pipeline patency detection, by falling
Pipe bead situation current in pipe under test, can further visit the patency in pigging road, to which subsequent positioning is fixed
When deep operation more accurately and conveniently, also can be more systematic and comprehensive, said program can face the inspection of most of underground piping
It surveys, applicability higher.
The further setting of the present invention is：The pipe bead that falls uses the elastic material with deformability to be made, and institute
It states to fall inside pipe bead and is hollow setting and is equipped with air admission hole.
By using above-mentioned technical proposal, in order to adapt to the pipeline of different test sections, need to have not so falling pipe bead
With the cross-sectional area of size, it is therefore desirable to be made of elastic material and be equipped with air admission hole facilitate change internal gas pressure.
The further setting of the present invention is：The connecting rope is made of light flexible material, and in the connecting rope inside
Sky setting, one end of the connecting rope are plugged in the air admission hole, and the other end, which is connected with, to be fallen for changing described in pipe bead
The air pressure regulator of portion's air pressure.
It, will not be to falling pipe bead in pipeline using connecting rope made of light flexible material by using above-mentioned technical proposal
Middle traveling causes excessive adverse effect, while connection air pressure regulator in connecting rope one end can advance to pipe when falling pipe bead
Adjustment falls the volume of pipe bead in time when any position in road, so that pipe under test can be adapted to as far as possible by falling pipe bead
Changes of section, only in this way could preferably detect the stopping state in underground piping, otherwise be unfavorable for subsequent depthkeeping
Positioning measurement.
The further setting of the present invention is：The pipe bead that falls is equipped with multiple tracks fixed groove, connecting rope retracting in
In the fixed groove.
By using above-mentioned technical proposal, fixed groove provides certain space for the retracting of connecting rope, is also unlikely to
Pipe bead is being fallen to falling off in advance when advancing inside pipe under test, advantageously ensuring that connecting rope and fall between pipe bead can be orderly
Cooperation.
The further setting of the present invention is：The driving device is pipe supercharging apparatus, the exit of the pipe under test
It is provided with pipeline depressurization device.
By using above-mentioned technical proposal, pipe supercharging apparatus can be increased from the inlet of pipe under test into pipeline
Pressure, be made of the elastic material of lightweight due to falling pipe bead, under pressure action can towards the outlet end motion of pipeline,
The exit of pipeline is also equipped with pipeline depressurization device simultaneously, so as to fall pipe bead as centre in pipeline, both sides are deposited
In larger pressure difference, so drive fall pipe bead can lasting rolling in the duct, the unimpeded situation in pipeline is timely
Feedback.
The further setting of the present invention is：The inlet of the pipe under test is provided with for connecting pipe under test and pipeline
The seal assembly of supercharging device is provided with the admission line being plugged in the pipe under test, institute on the pipe supercharging apparatus
It includes the installation frame for being fixedly connected on pipe under test inlet to state seal assembly, and sealing is slidably connected in the installation frame
Plate, the sealing plate are connected on the outer surface of the admission line.
By using above-mentioned technical proposal, must be deposited between the admission line being arranged on pipe supercharging apparatus and pipe under test
It is poor in caliber, if therefore will not seal therebetween, inherently significantly reduce pipe supercharging apparatus supercharging effect,
Be unable to maintain that in pipe under test that pressure reaches set value, thus the seal assembly being arranged very it is necessary to.
The further setting of the present invention is：The sealing plate is made of sliding upper plate and sliding lower plate, and in the sliding
The bottom end of plate and the top of sliding lower plate offer abutting groove, when sliding upper plate and sliding lower plate abuts close, two
The abutting groove is closely connected on admission line.
By using above-mentioned technical proposal, it sets sealing plate to two parts up and down, and slide on upper plate and sliding lower plate
Abutting groove is offered, and can be connected on the outer surface of admission line, pole significantly promotes pipe under test and air inlet
Leakproofness between pipeline.
The further setting of the present invention is：When S2 middle and upper reaches pipe pluggings, diving closure is first carried out, then carry out auxiliary envelope
It is stifled, it is primary every 3-4 well location progress when diving blocks, rubber pneumatic bag is used when auxiliary blocks.
By using above-mentioned technical proposal, since pipeline is in operation stage, the water pressure of upstream is excessive after closure, therefore
Trunk Line must use the method that diving blocks, and avoid end socket from being broken through and caused the life danger of construction personnel by flow, simultaneously
If there are the water outlets of more branch pipe in pipeline, rubber pneumatic bag auxiliary should be subject in diving block section and is blocked, convenient for applying
Work is smoothly carried out, and is also beneficial to the depth displacement of part well location and is caused draining incomplete, influences dredging and detection is normally carried out.
The further setting of the present invention is：In S3 when pipeline cleaning, first ponding in pipeline is extracted out, then uses water jetting at high pressure
Device dredging pipeline sundries.
By using above-mentioned technical proposal, water jetting at high pressure device can be to high pressure water flow be sprayed before and after pipeline, can be quick
The sundries said in pipeline or the deposit even rust of pipeline clean out, be highly effective pipeline cleaning means.
The further setting of the present invention is：It, will for non-metallic part pipe under test when carrying out positioning depthkeeping operation in S5
The labeled probe or conducting wire of energy transmission of electromagnetic signals are sent into pipe under test, are sent out with receiver receiving transducer or conducting wire on ground
Electromagnetic signal determine the trend and buried depth of pipe under test；For metal part pipe under test, visited using geological radar
It surveys；Multiple verification holes are directly formed also by the way of mechanical excavation simultaneously, with the buried depth and diameter of direct measuring pipe under test.
By using above-mentioned technical proposal, different test methods can be selected according to the different situations of pipe under test, is obtained
The measurement accuracy arrived is also corresponding somewhat higher, while the mode for being also accompanied by mechanical excavation is verified, and corrects measuring in time
Error that may be present in journey improves measurement efficiency and precision.
In conclusion the invention has the advantages that：
1）Underground piping can be allowed to survey by whole orderly procedure connection from the data molding of reconnaissance trip to the end
Operation more comprehensively and systematization, situations such as confirming measurement result repeatedly by multiple tracks interlude, reduce missing inspection false retrieval；
2）The step of being detected by the pipe under test patency of setting, provides before carrying out depthkeeping positioning measurement inside pipeline
Unobstructed implementations are conducive to the progress of subsequent detection, improve overall plan convenient for the cleaning degree inside adjustment pipeline in time
Adaptability.
Description of the drawings
Fig. 1 is the system diagram of the present embodiment；
Fig. 2 is the front view of the inlet of pipe under test；
Fig. 3 is the front view for falling pipe bead.
Reference numeral：1, pipe under test；2, entrance；3, it exports；4, pipe bead is fallen；5, air admission hole；6, connecting rope；7, fixed
Groove；8, pipe supercharging apparatus；9, admission line；10, pipeline depressurization device；11, air pressure regulator；12, seal assembly；
13, installation frame；14, sealing plate；15, upper plate is slided；16, lower plate is slided；17, groove is abutted.
Specific implementation mode
A kind of detection method of underground piping, includes the steps that as follows：
S1, reconnaissance trip.Situations such as opening construction in the water level, mud and well of inspection shaft visual inspection pipeline, verification institute's early period
People's well location in gathering information sets, Guan Wei, caliber, material etc., in conjunction with as-built drawing to needing the pipeline of construction section to carry out scene
Make an on-the-spot survey, the data provided according to as-built drawing on the spot to it is each cross well and access well with significantly marking, convenient for carrying
Height blocks safety and efficacy, and by reconnaissance trip observation, whether pipeline has available data that is clear and grasping to come in and go out on the spot
Place, if it is present the structure or pipeline rout, connection relation etc. of the place that must understand that there is any discrepancy one by one, actually to make an on-the-spot survey
Result subject to.
After understanding the practical trend of underground piping and connection relation at the scene of grasp, the exploration for measuring control point again is needed
With the trial test of measurement method.It measures the setting at control point and principle is covered as with few setting more, the inflection point of pipeline can be set to
Or junction.Periphery is mainly surveyed when preliminary experiment and whether there is the factor being affected to experiment, such as the iron near pipe under test 1
Matter railing etc. is registered in time, when necessary premature removal or removal influence factor.
S2, upstream line block.According to flow intensity in practical pipe condition and pipeline, to avoid because blocking time is long
The hydraulic pressure that upstream ponding generates is caused to cause centainly to threaten to downstream construction personnel afterwards, therefore the distance blocked is according to actual state
It carries out, is blocked according to first upstream, each water inlet of the well that crosses, block the well coped with before in the road section scope to be constructed
Lid is opened and places guardrail or eye-catching label, is detected to the gas in well with gas detecting instrument, it is ensured that without toxic
Closure of going into the well can be carried out after gas.
Atmosphere diving blocks when blocking operation and auxiliary blocks two parts and carries out.Since pipeline is in operation stage, envelope
The water pressure of upstream is excessive after stifled, therefore Trunk Line must use the method that diving blocks, and end socket is avoided to be broken through and made by flow
At the life danger of construction personnel.General take is blocked every 3-4 well location.Due to going out there are more branch pipe in pipeline
The mouth of a river, therefore be subject to rubber pneumatic bag auxiliary in diving block section and block, smoothly carry out convenient for construction, is also beneficial to part well location
Depth displacement and cause draining incomplete, avoid influencing to dredge and detection be normally carried out.
S3, pipe under test 1 are cleared up.First, after confirming that each branch pipe in upstream blocks completely, temporary drainage is carried out to pipeline
10 centimetres or so of bottom simultaneously controls the upstream water level after closure；Secondly, using water jetting at high pressure machine by high pressure generate to
Afterwards and forward flow, can freely control high-voltage tube and be run in pipeline, the high pressure water flow sprayed backward can be in pipeline
Mud and rubbish are washed into inspection shaft, are then evacuated in mud transfer cart and are discharged to appointed place, can bottom line reduction silt
The pollution of mud and rubbish to surrounding enviroment.Wherein, water jetting at high pressure machine uses " vertical resistance to " SJ2700 vehicular high pressures of imported from Holland
Monitor, vehicular water jetting at high pressure machine are suitble to various streets to run, the limitation of the streets Bu Shou condition, the not influence of climate, entirely
Mechanically actuated, it is safe and simple, it is equipped with the various various calibers for rinsing chieftain and can be adapted for 200-1000mm, the height freely configured
Pressure pipe can be 150 meters or so with dredging pipeline maximum distance, and part is suitble to use the sewage conduct of pipe pushing technology long range.This equipment
Maximum feature be exactly high pressure generate water flow jet can in pipeline other than concrete block mud and various life rubbish
It is blocked caused by rubbish and carries out dredging completely thoroughly, and the attachments such as rust deposite, erosion on duct wall can be removed, reduced in sewage
The corrosion to pipeline of acid, alkali.
S4, the detection of 1 patency of pipe under test.After completing S3, pipeline tentatively has the condition of positioning depthkeeping detection, is
The patency in pipeline can be further grasped, detection and secondary pipeline cleaning is repeated in reduction, as shown in Figure 1,
Be placed in the entrance 2 of pipe under test 1 and fall pipe bead 4 with location tracking function, fall pipe bead 4 diameter be equal to wait for test tube
The pipe shaft diameter in road 1 falls on pipe bead 4 and is also associated with connecting rope 6, is also placed at the entrance 2 of pipe under test 1 and is fallen for pushing
The driving device that pipe bead 4 is moved into pipeline.
It is made, such as polyethylene, and fallen of the light elastic material with deformability as shown in figure 3, falling pipe bead 4
4 inside of pipe bead is hollow setting and is equipped with air admission hole 5, falls inside pipe bead 4 and is fixed with GPS positioning chip, so as to logical
Signal receiving end is crossed to judge and track to fall the position of pipe bead 4, and real-time speed is calculated.
Connecting rope 6 is made of light flexible material, such as polyethylene, and 6 inner hollow of connecting rope is arranged, connecting rope 6
One end is plugged in air admission hole 5, and the other end is connected with to fall the air pressure regulator 11 of 4 air pressure inside of pipe bead, gas
It can be air compressor to press regulating device 11.Connecting rope 6 is fixed on for convenience and is fallen on pipe bead 4, on falling pipe bead 4
Equipped with multiple tracks fixed groove 7, connecting rope 6 furls in fixed groove 7.
As shown in Figure 1, driving device is pipe supercharging apparatus 8, such as air compressor or air blower；Pipe under test 1
It exports and is provided with pipeline depressurization device 10 at 3, can be exhaust fan or vacuum machine etc..
By the pipe supercharging apparatus and pipeline depressurization device 10 of setting, the both sides for falling pipe bead 4 can be made as far as possible
Larger pressure difference is formed to which driving falls pipe bead 4 to advance into pipe under test 1.In order to maintain pressure difference as far as possible
Stablize, the seal assembly 12 for connecting pipe under test 1 and pipe supercharging apparatus 8, pipe are provided at the entrance 2 of pipe under test 1
The admission line 9 being plugged in pipe under test 1 is provided on road supercharging device 8, seal assembly 12 is to be measured including being fixedly connected on
Installation frame 13 at 1 entrance 2 of pipeline slidably connects sealing plate 14 in installation frame 13, and sealing plate 14 is by sliding upper plate 15
It is formed with sliding lower plate 16, and slides the bottom end of upper plate 15 and the top of sliding lower plate 16 and offer and abut groove 17, work as cunning
When dynamic upper plate 15 and sliding lower plate 16 abut close, two abut groove 17 and are closely connected on admission line 9, greatly carry
Leakproofness at the entrance 2 of high pipe under test 1 between admission line 9.
S5, pipeline location depthkeeping operation.For non-metallic part pipe under test 1, will the tracer of transmission of electromagnetic signals visit
Head is sent into pipe under test 1, in the electromagnetic signal that ground is sent out with receiver receiving transducer, so that it is determined that underground non-metal line
Trend and buried depth；For metallic conduit or more complicated underground piping, using Electromagnetic Wave Method, i.e. the geological radar side of detecting
Method is to emit high frequency wideband short pulse electromagnetic wave to underground by being placed in the transmitting antenna of earth's surface, and electromagnetic wave is in underground medium
It generates to reflect and be received antenna when encountering the pipeline interfaces electrically different from surrounding medium in communication process and record, show
One of radar record is formed on the screen.When antenna moves point by point along line direction to be detected, each trace record is pressed measuring point sequence and is arranged
It is listed in together, forms one and detect radar image, by analyzing each reflection wave strength, wave character in radar cross-section image and arriving
Up to time, the distribution situation of deducibility underground utilities.
Meanwhile in order to verify the authenticity and error range of measured data in time, above two test method is being carried out
When, the method using mechanical excavation that can also coordinate carries out the excavation in verification hole at set measurement control point, directly surveys
Position, diameter and the buried depth of underground piping at amount verification hole, and the number that the data measured are obtained with above two method in time
It according to being compared, and is modified according to comparing result, when error is excessive, re-starts detection.
S6, data collection and arrangement.Record all during practice of construction is respectively formed number, retention process data,
And the data such as the overall system view of underground piping to be measured and the diameter of pipeline, buried depth even damaged degree are ultimately formed, it is formed
Complete database, and complete to back up.
Claims (10)
1. a kind of detection method of underground piping, which is characterized in that include the following steps：
S1, reconnaissance trip, including measure the trial test of the exploration and measurement method at control point；
S2, upstream line block；
S3, pipe under test (1) cleaning；
S4, the detection of pipe under test (1) patency；
S5, pipeline location depthkeeping operation；
S6, data collection and arrangement；
Wherein, when pipe under test (1) patency detects in S4, the entrance (2) in pipe under test (1) is placed with location tracking
Function falls pipe bead (4), and the diameter for falling pipe bead (4) is equal to the pipe shaft diameter of pipe under test (1), described to fall pipe bead
(4) connecting rope is also associated on（6）, also it is placed at the entrance (2) of the pipe under test (1) and described falls pipe bead for pushing
(4) driving device moved into pipeline.
2. a kind of detection method of underground piping according to claim 1, it is characterised in that：The pipe bead (4) that falls is adopted
It is made of the light elastic material with deformability, and described fall inside pipe bead (4) is hollow setting and is equipped with air admission hole
(5)。
3. a kind of detection method of underground piping according to claim 2, it is characterised in that：The connecting rope (6) is light
Matter flexible material is made, and the connecting rope (6) inner hollow is arranged, and one end of the connecting rope (6) is plugged in the air inlet
In hole (5), the other end is connected with for changing the air pressure regulator (11) for falling pipe bead (4) air pressure inside.
4. a kind of detection method of underground piping according to claim 3, it is characterised in that：It is described to fall on pipe bead (4)
Equipped with multiple tracks fixed groove (7), connecting rope (6) retracting is in the fixed groove (7).
5. a kind of detection method of underground piping according to claim 1, it is characterised in that：The driving device is pipeline
Supercharging device（8）, pipeline depressurization device is provided at the outlet (3) of the pipe under test (1)（10）.
6. a kind of detection method of underground piping according to claim 5, it is characterised in that：The pipe under test (1)
It is provided at entrance (2) for connecting pipe under test (1) and pipe supercharging apparatus（8）Seal assembly (12), the pipeline increases
Pressure device（8）On be provided with the admission line (9) being plugged in the pipe under test (1), the seal assembly (12) includes solid
Surely the installation frame (13) being connected at pipe under test (1) entrance (2), the installation frame (13) is interior to slidably connect sealing plate
(14), the sealing plate (14) is connected on the outer surface of the admission line (9).
7. a kind of detection method of underground piping according to claim 6, it is characterised in that：The sealing plate (14) is by sliding
Dynamic upper plate (15) and sliding lower plate (16) form, and the bottom end of the sliding upper plate (15) and the top of sliding lower plate (16) are opened
Equipped with abutting groove (17), when sliding upper plate (15) and sliding lower plate (16) abuts close, two abutting grooves (17)
It is closely connected on admission line (9).
8. a kind of detection method of underground piping according to claim 1, it is characterised in that：S2 middle and upper reaches pipe pluggings
When, diving closure is first carried out, then carry out auxiliary closure, is carried out once every 3-4 well location when diving blocks, auxiliary is adopted when blocking
Use rubber pneumatic bag.
9. a kind of detection method of underground piping according to claim 1, it is characterised in that：In S3 when pipeline cleaning, first
Ponding in pipeline is extracted out, then uses water jetting at high pressure device dredging pipeline sundries.
10. a kind of detection method of underground piping according to claim 9, it is characterised in that：Positioning depthkeeping is carried out in S5
When operation, for non-metallic part pipe under test (1), will transmission of electromagnetic signals labeled probe or conducting wire be sent into pipe under test
(1) it in, determines the trend of pipe under test (1) in the electromagnetic signal that ground is sent out with receiver receiving transducer or conducting wire and buries
It is deep；For metal part pipe under test (1), detected using geological radar；It is direct also by the way of mechanical excavation simultaneously
Multiple verification holes are formed, with the buried depth and diameter of direct measuring pipe under test (1).
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| CN201810614736.6A CN108426174B (en) | 2018-06-14 | 2018-06-14 | Detection method of underground pipeline |
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|---|---|---|---|
| CN201810614736.6A CN108426174B (en) | 2018-06-14 | 2018-06-14 | Detection method of underground pipeline |
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| CN108426174B CN108426174B (en) | 2019-12-27 |
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| CN109239788A (en) * | 2018-11-14 | 2019-01-18 | 广州瑾诚测绘有限公司 | A kind of detection method and device of pipe diameter of underground non-metal pipe |
| CN109611695A (en) * | 2019-01-21 | 2019-04-12 | 北京中盾讯达科技有限公司 | Pipeline carrier radar corrodes leak source on-line detecting system |
| CN110131587A (en) * | 2019-04-17 | 2019-08-16 | 汉正检测技术有限公司 | A kind of pipe detection device |
| CN111366124A (en) * | 2020-05-11 | 2020-07-03 | 深圳市卓立勘测工程有限公司 | Underground pipeline deformation degree measuring system and measuring method |
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| CN114167451A (en) * | 2021-10-23 | 2022-03-11 | 上海惟堪建筑工程技术有限公司 | System and method for long-distance detection of non-metal pipeline |
| CN114720038A (en) * | 2022-04-26 | 2022-07-08 | 沈阳工业大学 | Spherical internal detection system for gas pipeline |
| CN114965672A (en) * | 2022-05-12 | 2022-08-30 | 沈阳工业大学 | Multi-section spherical internal detector for pipeline |
| CN117451528A (en) * | 2023-12-25 | 2024-01-26 | 宝鸡市杰特瑞金属材料股份有限公司 | Thin-wall titanium pipe hydrostatic test frock |
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| CN113899296B (en) * | 2021-06-09 | 2023-10-13 | 新疆鑫宝隆建设工程有限责任公司 | Method for positioning blocking point of casing pipe for building electric |
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| CN117740883A (en) * | 2023-12-19 | 2024-03-22 | 广东工业大学 | Detection method and device for pipeline blockage |
| CN117451528A (en) * | 2023-12-25 | 2024-01-26 | 宝鸡市杰特瑞金属材料股份有限公司 | Thin-wall titanium pipe hydrostatic test frock |
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