CN105301662A - Method for detecting underground pipeline with small aperture and great burial depth - Google Patents
Method for detecting underground pipeline with small aperture and great burial depth Download PDFInfo
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- CN105301662A CN105301662A CN201510669577.6A CN201510669577A CN105301662A CN 105301662 A CN105301662 A CN 105301662A CN 201510669577 A CN201510669577 A CN 201510669577A CN 105301662 A CN105301662 A CN 105301662A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009933 burial Methods 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000007405 data analysis Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the field of geotechnical engineering detection and test, and particularly relates to a method for detecting an underground pipeline with small aperture and great burial depth. The method is characterized in that a strong magnet is placed in an underground pipeline to be detected, an active magnetic source is sent to an area to be detected by adopting a guide rod, then a hole is drilled by the side of the underground pipeline in the area to be detected, a magnetic sensor is placed in the drilled hole so as to measure a magnetic field of the active magnetic source, and accurate location information of the underground pipeline is judged according to acquired magnetic field data. The method has the advantages that the acquisition period is short, the input cost is low, the detection process is high in interference resistance, and the detection result is accurate.
Description
Technical field
The present invention relates to rock and soil engineering detection and field tests, be specifically related to small-bore great burying underground utilities detection method.
Background technology
Now along with the quickening of Process of Urbanization Construction paces, underground utilities as urban lifeline are also increasing, the Shallow-Embedded Under-Ground pipeline laid at adjacent ground surface has occupied nearly all space, and no-excavation construction method is growing, advance underground utilities to great burying future development, but bring the various problems such as corresponding Maintenance Difficulty, location difficulty thereupon.For deep-buried pipeline, present stage can carry out detection operations by methods such as gyroscope method, beacon trace methods, but gyroscope method is limited to its instrument own dimensions problem, cannot detect small-bore underground utilities, and beacon spike rule limits by factors such as its own transmission source signal intensity and peripheral electromagnetic field interference, accurately cannot locate great burying pipeline to be measured.
Summary of the invention
The object of the invention is according to above-mentioned the deficiencies in the prior art, provide small-bore great burying underground utilities detection method, by the mobile magnetic sensor locations arranged in boring, measure the magnetic field being arranged in active magnetic source in underground utilities, judge the precise position information of underground utilities according to the magnetic field data analysis obtained.
The object of the invention realizes being completed by following technical scheme:
A kind of small-bore great burying underground utilities detection method, it is characterized in that: in underground utilities to be measured, place kicker magnet, adopt guide rod that described active magnetic source is delivered to region to be measured, hole at described region to be measured underground utilities side afterwards, in described boring, place Magnetic Sensor to measure the magnetic field of described active magnetic source, judge the precise position information of described underground utilities according to the magnetic field data analysis obtained.
It is by the distance between the employing beacon trace method described region to be measured of acquisition and the mouth of pipe of described underground utilities that described active magnetic source is delivered to region to be measured by described employing guide rod, then in the enterprising row labels of guide rod, described guide rod is made the distance represented by described mark described active magnetic source can be delivered to region to be measured.
Described Magnetic Sensor is placed into the position of contiguous described underground utilities in described boring, the position of described active magnetic source in described region to be measured is moved by described guide rod, after the magnetic field of the described active magnetic source measured by described Magnetic Sensor reaches peak value, described active magnetic source is in measuring position and keeps static, and described measuring position is the position closest to described boring in described underground utilities.
Describedly in described boring, place the magnetic field that Magnetic Sensor measures described active magnetic source refer to, the mobile position of described Magnetic Sensor in described boring, the magnetic field of the active magnetic source measured by Magnetic Sensor described during diverse location, judges the precise position information of described underground utilities.
Described active magnetic source is the combination of multiple little strong magnetic source, is interconnected and fixed between multiple described little strong magnetic source.
Advantage of the present invention is: collection period is shorter, input cost is lower, detection process is anti-interference by force, result of detection is accurate.
Accompanying drawing explanation
Fig. 1 is arrangement schematic diagram of the present invention.
Embodiment
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technician of the same trade:
As shown in Figure 1, mark 1-7 in figure to be respectively: underground utilities 1, guide rod 2, initiatively magnetic source 3, boring 4, Magnetic Sensor 5, ground 6, little strong magnetic source 7.
Embodiment: as shown in Figure 1, the present embodiment small aperture great burying underground utilities detection method is for detecting the precise position information of the underground utilities 1 be embedded in below ground 6, and generally speaking great burying underground utilities in small-bore refer to that aperture is less than the underground utilities 1 of 3cm, more than buried depth 10m.The precise position information detecting underground utilities 1 causes damage in order to avoid excavation construction touching underground utilities 1.
The present embodiment has following steps in testing process:
(1) according to the aperture of underground utilities 1 to be measured, select the size of little strong magnetic source 7, be satisfied with the requirement that little strong magnetic source 7 can move freely in the hole of underground utilities 1.Some little strong magnetic sources 7 are fixedly connected with and are combined into list structure, adopt protective device parcel for subsequent use.Protective device can adopt flexible material to make, and fixes so that some little strong magnetic sources 7 are wound around combination by protective device.
(2) guide rod 2 one end fixed beacon trace method signal generator and that guide rod 2 is put into underground utilities 1 together with emissive source from the mouth of pipe of underground utilities 1 is inner, measure the approximate distance between the region to be measured of underground utilities 1 and its mouth of pipe by underground utilities beacon trace method, this region to be measured refers to the region that underground utilities 1 are adjacent to excavation construction and excavate.Guide rod 2 is carried out and marks and recall guide rod 2, the approximate distance that what this mark represented is between the region to be measured of underground utilities 1 and its mouth of pipe.Beacon trace method signal generator is replaced with the active magnetic source 3 made in step (1), with high toughness adhesive tape by active magnetic source 3 with guide rod 2 in conjunction with fixing, and accept Anti-pull-press test, meeting the guide rod 2 of Anti-pull-press test, initiatively magnetic source 3 can use.
(3) arrange boring 4 in region to be measured subsequently, boring 4 be generally positioned at underground utilities side 3m to be measured and within, the Magnetic Sensor 5 ensureing in boring 4 can sense the magnetic field of the active magnetic source 3 being arranged in underground utilities 1.The hole depth of boring 4 is greater than the buried depth of underground utilities 1 to be measured.
(4) active magnetic source 3 is pushed to the mark position of guide rod 2, now initiatively magnetic source 3 is positioned at the region to be measured of underground utilities 1.Magnetic Sensor 5 to be put among boring 4 and to stop near underground utilities 1 to be measured, initiatively magnetic source 3 is moved forward and backward at areas adjacent to be measured afterwards by guide rod 2, after the magnetic field of the active magnetic source 3 measured by Magnetic Sensor 5 reaches peak value, initiatively magnetic source 3 is in measuring position and keeps static, and this measuring position is the positions of underground utilities 1 closest to boring 4.The Magnetic Sensor 5 that vertical movement is arranged in boring 4 carries out collecting work, the magnetic field of initiatively magnetic source 3 when measuring the Magnetic Sensor 5 of diverse location.
(5) magnetic data collected is depicted as curve map, due to Magnetic Sensor 5 be in diverse location time, the magnetic field intensity of the active magnetic source 3 that it measures is different, from active magnetic source 3 more close to time magnetic field intensity larger, otherwise from active magnetic source 3 more away from time magnetic field intensity less.And due to hole 4 the degree of depth be greater than the buried depth of underground utilities 1, therefore its Magnetic field strength curve has a peak value, this peak value corresponds to Magnetic Sensor 5 and the active immediate position of magnetic source 3, and the degree of depth of Magnetic Sensor 5 in boring 4 is artificially controlled, therefore the degree of depth of Magnetic Sensor 5 in boring 4 just equals the degree of depth of initiatively magnetic source 3, also equals the buried depth of underground utilities 1.
The present embodiment is in the specific implementation: for porous underground utilities, repeats aforesaid detection operation in all the other each holes, and then obtains the overall accurately buried depth of underground utilities to be measured.
The movement respectively in underground utilities 1 and boring 4 of active magnetic source 3 and Magnetic Sensor 5 is discontinuity and moves, and moving interval is 0.1m, to ensure measuring accuracy.
Claims (5)
1. a small-bore great burying underground utilities detection method, it is characterized in that: in underground utilities to be measured, place kicker magnet, adopt guide rod that described active magnetic source is delivered to region to be measured, hole at described region to be measured underground utilities side afterwards, in described boring, place Magnetic Sensor to measure the magnetic field of described active magnetic source, judge the precise position information of described underground utilities according to the magnetic field data analysis obtained.
2. a kind of small-bore according to claim 1 great burying underground utilities detection method, it is characterized in that: it is by the distance between the employing beacon trace method described region to be measured of acquisition and the mouth of pipe of described underground utilities that described active magnetic source is delivered to region to be measured by described employing guide rod, then in the enterprising row labels of guide rod, described guide rod is made the distance represented by described mark described active magnetic source can be delivered to region to be measured.
3. a kind of small-bore according to claim 1 great burying underground utilities detection method, it is characterized in that: the position described Magnetic Sensor being placed into contiguous described underground utilities in described boring, the position of described active magnetic source in described region to be measured is moved by described guide rod, after the magnetic field of the described active magnetic source measured by described Magnetic Sensor reaches peak value, described active magnetic source is in measuring position and keeps static, and described measuring position is the position closest to described boring in described underground utilities.
4. a kind of small-bore according to claim 1 great burying underground utilities detection method, it is characterized in that: describedly in described boring, place the magnetic field that Magnetic Sensor measures described active magnetic source refer to, the mobile position of described Magnetic Sensor in described boring, the magnetic field of the active magnetic source measured by Magnetic Sensor described during diverse location, judges the precise position information of described underground utilities.
5. a kind of small-bore according to claim 1 great burying underground utilities detection method, is characterized in that: described active magnetic source is the combination of multiple little strong magnetic source, is interconnected and fixed between multiple described little strong magnetic source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510669577.6A CN105301662B (en) | 2015-10-16 | 2015-10-16 | Method for detecting underground pipeline with small aperture and large buried depth |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510669577.6A CN105301662B (en) | 2015-10-16 | 2015-10-16 | Method for detecting underground pipeline with small aperture and large buried depth |
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| CN105301662A true CN105301662A (en) | 2016-02-03 |
| CN105301662B CN105301662B (en) | 2020-01-24 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772639A (en) * | 2016-12-23 | 2017-05-31 | 西南石油大学 | Underground irony pipeline buried depth magnetic dipole structured approach Optimization inversion |
| 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 |
| CN108490390A (en) * | 2018-02-28 | 2018-09-04 | 北京理工大学 | A kind of mobile magnetic source positioning device |
| CN109298460A (en) * | 2018-09-26 | 2019-02-01 | 江苏史利姆智能测控技术有限公司 | A kind of device for preventing to dig disconnected optical cable |
| CN109409146A (en) * | 2018-09-27 | 2019-03-01 | 北京计算机技术及应用研究所 | A kind of method and system using RFID tags road |
| CN111678467A (en) * | 2020-05-29 | 2020-09-18 | 浙江省工程勘察设计院集团有限公司 | Method for detecting buried depth of underground pipeline by cross-hole ultrasonic method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772639A (en) * | 2016-12-23 | 2017-05-31 | 西南石油大学 | Underground irony pipeline buried depth magnetic dipole structured approach Optimization inversion |
| CN106772639B (en) * | 2016-12-23 | 2018-09-07 | 西南石油大学 | Underground irony pipeline buried depth magnetic dipole structured approach Optimization inversion |
| 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 |
| CN108490390A (en) * | 2018-02-28 | 2018-09-04 | 北京理工大学 | A kind of mobile magnetic source positioning device |
| CN109298460A (en) * | 2018-09-26 | 2019-02-01 | 江苏史利姆智能测控技术有限公司 | A kind of device for preventing to dig disconnected optical cable |
| CN109409146A (en) * | 2018-09-27 | 2019-03-01 | 北京计算机技术及应用研究所 | A kind of method and system using RFID tags road |
| CN111678467A (en) * | 2020-05-29 | 2020-09-18 | 浙江省工程勘察设计院集团有限公司 | Method for detecting buried depth of underground pipeline by cross-hole ultrasonic method |
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| CN105301662B (en) | 2020-01-24 |
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Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |
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