CN103698821A - Method for detecting deep underground pipeline by using orientation instrument - Google Patents
Method for detecting deep underground pipeline by using orientation instrument Download PDFInfo
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- CN103698821A CN103698821A CN201310672577.2A CN201310672577A CN103698821A CN 103698821 A CN103698821 A CN 103698821A CN 201310672577 A CN201310672577 A CN 201310672577A CN 103698821 A CN103698821 A CN 103698821A
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Abstract
The invention relates to a method for detecting a deep underground pipeline by using an orientation instrument. The method comprises the following steps: S01, calibrating measured depth of a receiver and a signal rod of the orientation instrument on the ground; S02, fixing the signal rod of the orientation instrument on a pipeline threader, enabling the signal rod to be in the working state, and subsequently feeding the signal rod into a pipeline opening; S03, calculating a difference value V1 between an initial position measured by the orientation instrument and a measured actual position, and a difference value V2 between the burial depth measured by the orientation instrument and the measured actual burial depth; S04, sequentially pushing the signal rod forwards according to preset distance, and tracking the moving track of the signal rod through the receiver; S05, modifying the burial depth and the central position of a tube according to modification values V1 and V2 of the threaded tube. By adopting the method, difficulties in detection on deep underground pipelines can be solved, the largest detection depth of the orientation instrument can be 28 meters, and the method is applicable to pipeline detection on non-excavation orientation stay tube construction distribution.
Description
Technical field
The present invention relates to Electromagnetic Survey of Underground Pipelines field, particularly a kind of method of using guide instrument to carry out deep layer Electromagnetic Survey of Underground Pipelines.
Background technology
Conventional Electromagnetic Survey of Underground Pipelines is generally use underground pipeline finder, based on electromagnetism ratio juris, surveys at present.The method to pipeline transmission of electromagnetic signals, receives position and the trend of the electromagnetic signal differentiation underground metal pipeline of pipeline top by transmitter by receiver.This kind of method requires to be detected pipeline material and is necessary for metal pipe line or cable, and can not survey material, is nonmetallic pipeline.The nonmetal pipe line that has opening for shallow-layer, can be used spike probe method.For the detection of metal, nonmetal pipe line, can also use geological radar method, but its Effect on Detecting is often surveyed the impact of place, geologic condition and underground water table height and is restricted.
Existing technical method can only solve the detection of the underground utilities of shallow-layer part above, and for city, more and more adopt the underground utilities of the deep layer of non-excavating construction, its degree of depth is generally all between 5 meters～20 meters, and this degree of depth is far beyond the limit investigation depth of above method, cannot survey position and the buried depth of this deep layer underground utilities, the blind area of the pipeline that also just makes this degree of depth in surveying.
Summary of the invention
For addressing the above problem, the invention provides a kind of method of using guide instrument to carry out deep layer Electromagnetic Survey of Underground Pipelines.
The method adopts following scheme to realize: a kind of method of using guide instrument to carry out deep layer Electromagnetic Survey of Underground Pipelines, is characterized in that comprising the following steps:
Step S01: on the ground the receiver of guide instrument and signal rod are carried out to depth measurement calibration between the two;
Step S02: the signal rod of guide instrument is fixed on pipeline pipe perforator, and makes signal rod in running order, then utilize pipeline pipe perforator from pipeline exposure, signal rod to be sent in the mouth of pipe;
Step S03: determine the initial position of signal rod and measure initial buried depth with the receiver of guide instrument, measure physical location and the buried depth of the mouth of pipe, and calculate initial position that guide instrument surveys and the difference V1 between the physical location of measurement, difference V2 between the actual buried depth of the buried depth that guide instrument is surveyed and measurement, is modified value V1, V2;
Step S04: signal rod is pushed forward successively by predetermined distance, the motion track of receiver tracking signal rod, and according to predetermination site, rear anchor point and position line, measure the signal residing position of rod and corresponding buried depth on the ground;
Step S05: according to the modified value V1 of institute's poling, V2, revise buried depth and the center of its pipe.
In an embodiment of the present invention, the guide instrument that described guide instrument is used in non-excavating construction machinery, it comprises signal rod, receiver and remote display.
In an embodiment of the present invention, described pipeline pipe perforator is the pipeline pipe perforator for pipeline pull-in cable, dredging pipeline.
In an embodiment of the present invention, described preset distance comprises that 3m, 5m or 10m(can adjust as required).
The invention has the beneficial effects as follows: 1, can solve a difficult problem for deep layer Electromagnetic Survey of Underground Pipelines, the maximum probe degree of depth of guide instrument can reach 28 meters, be applicable to the pipeline detection that the directed pipe in pipe pulling construction of non-excavation is laid; 2, with respect to conventional Detection Techniques, this method is subject to the interference of periphery medium little, and anti-interference strong, signal is more stable, and precision is higher; 3, the transformation in equipment application technology field, has effectively filled the technology blind area of pipeline detection industry.
Accompanying drawing explanation
Fig. 1 is the inventive method schematic flow sheet.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in Figure 1, the present embodiment provides a kind of method of using guide instrument to carry out deep layer Electromagnetic Survey of Underground Pipelines, it is characterized in that comprising the following steps:
Step S01: on the ground the receiver of guide instrument and signal rod are carried out to depth measurement calibration between the two;
Step S02: the signal rod of guide instrument is fixed on pipeline pipe perforator, and makes signal rod in running order, then utilize pipeline pipe perforator from pipeline exposure, signal rod to be sent in the mouth of pipe;
Step S03: determine the initial position of signal rod and measure initial buried depth with the receiver of guide instrument, measure physical location and the buried depth of the mouth of pipe, and calculate initial position that guide instrument surveys and the difference V1 between the physical location of measurement, difference V2 between the actual buried depth of the buried depth that guide instrument is surveyed and measurement, is modified value V1, V2;
Step S04: signal rod is pushed forward successively by predetermined distance, the motion track of receiver tracking signal rod, and according to predetermination site, rear anchor point and position line, measure the signal residing position of rod and corresponding buried depth on the ground;
Step S05: according to the modified value V1 of institute's poling, V2, revise buried depth and the center of its pipe.
Be noted that in order to reach the object of deep layer Electromagnetic Survey of Underground Pipelines, guarantee the precision of deep layer Electromagnetic Survey of Underground Pipelines, need to have following measures to guarantee:
1) equipment is selected:
Guide instrument: be mainly to use in non-excavating construction machinery, the application uses guide instrument signal rod, receiver and remote display.
Pipeline pipe perforator: be mainly used in the purposes such as pull-in cable, dredging pipeline in pipeline.The application transmits guide instrument signal rod with pipeline pipe perforator and uses.
2) usable range:
A, the present invention are applicable to the detection of nonmetal pipe line, avoid signal rod to produce Primary field and are shielded.
B, for the buried depth difference of deep layer underground utilities, can select dissimilar signal rod (as 12m, 24m).
C, institute's drawing-in wire should possess signal rod by required space, guarantee the current of signal rod.
In addition, also can disturb the difference of complexity around according to deep layer underground utilities, adopt the signal rod of different frequency, reduce the interference of signal, improve the precision of pipeline detection.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. use guide instrument to carry out a method for deep layer Electromagnetic Survey of Underground Pipelines, it is characterized in that comprising the following steps:
Step S01: on the ground the receiver of guide instrument and signal rod are carried out to depth measurement calibration between the two
Step S02: the signal rod of guide instrument is fixed on pipeline pipe perforator, and makes signal rod in running order, then utilize pipeline pipe perforator from pipeline exposure, signal rod to be sent in the mouth of pipe;
Step S03: determine the initial position of signal rod and measure initial buried depth with the receiver of guide instrument, measure physical location and the buried depth of the mouth of pipe, and calculate initial position that guide instrument surveys and the difference V1 between the physical location of measurement, difference V2 between the actual buried depth of the buried depth that guide instrument is surveyed and measurement, is modified value V1, V2;
Step S04: signal rod is pushed forward successively by predetermined distance, the motion track of receiver tracking signal rod, and according to predetermination site, rear anchor point and position line, measure the signal residing position of rod and corresponding buried depth on the ground;
Step S05: according to the modified value V1 of institute's poling, V2, revise buried depth and the center of its pipe.
2. utilization guide instrument according to claim 1 carries out the method for deep layer Electromagnetic Survey of Underground Pipelines, it is characterized in that: the guide instrument that described guide instrument is used in non-excavating construction machinery, it comprises signal rod, receiver and remote display.
3. utilization guide instrument according to claim 1 carries out the method for deep layer Electromagnetic Survey of Underground Pipelines, it is characterized in that: described pipeline pipe perforator is the pipeline pipe perforator for pipeline pull-in cable, dredging pipeline.
4. utilization guide instrument according to claim 1 carries out the method for deep layer Electromagnetic Survey of Underground Pipelines, it is characterized in that: described preset distance comprises 3m, 5m or 10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310672577.2A CN103698821A (en) | 2013-12-12 | 2013-12-12 | Method for detecting deep underground pipeline by using orientation instrument |
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| CN201310672577.2A CN103698821A (en) | 2013-12-12 | 2013-12-12 | Method for detecting deep underground pipeline by using orientation instrument |
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| CN103698821A true CN103698821A (en) | 2014-04-02 |
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| CN201310672577.2A Pending CN103698821A (en) | 2013-12-12 | 2013-12-12 | Method for detecting deep underground pipeline by using orientation instrument |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158807A (en) * | 2015-10-15 | 2015-12-16 | 上海市政工程设计研究总院（集团）有限公司 | Deep buried pipeline accuracy detection device and detection method |
| CN105241452A (en) * | 2015-08-28 | 2016-01-13 | 上海电力设计院有限公司 | Trenchless calandria three-dimensional track optimization measurement method based on positioning induction device |
| CN106886049A (en) * | 2017-02-21 | 2017-06-23 | 南通市测绘院有限公司 | A kind of two-way docking poling detection device of long pipeline |
| CN112558172A (en) * | 2020-11-26 | 2021-03-26 | 国网山东省电力公司平阴县供电公司 | Cable duct detection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241452A (en) * | 2015-08-28 | 2016-01-13 | 上海电力设计院有限公司 | Trenchless calandria three-dimensional track optimization measurement method based on positioning induction device |
| CN105158807A (en) * | 2015-10-15 | 2015-12-16 | 上海市政工程设计研究总院（集团）有限公司 | Deep buried pipeline accuracy detection device and detection method |
| CN106886049A (en) * | 2017-02-21 | 2017-06-23 | 南通市测绘院有限公司 | A kind of two-way docking poling detection device of long pipeline |
| CN112558172A (en) * | 2020-11-26 | 2021-03-26 | 国网山东省电力公司平阴县供电公司 | Cable duct detection device |
| CN112558172B (en) * | 2020-11-26 | 2022-09-13 | 国网山东省电力公司平阴县供电公司 | Cable duct detection device |
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Application publication date: 20140402 |