CN214669642U - Coupling cable for ground cross-hole resistivity CT detection - Google Patents
Coupling cable for ground cross-hole resistivity CT detection Download PDFInfo
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- CN214669642U CN214669642U CN202121179424.0U CN202121179424U CN214669642U CN 214669642 U CN214669642 U CN 214669642U CN 202121179424 U CN202121179424 U CN 202121179424U CN 214669642 U CN214669642 U CN 214669642U
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- 238000010168 coupling process Methods 0.000 title claims abstract description 58
- 230000008878 coupling Effects 0.000 title claims abstract description 57
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 title claims description 22
- 239000006260 foam Substances 0.000 claims abstract description 28
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- 238000005553 drilling Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 10
- 230000008859 change Effects 0.000 abstract description 6
- 230000032258 transport Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000001808 coupling effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002247 constant time method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model provides a coupling cable for hole resistivity CT is surveyed across on ground, it is including detecting cable and couplant pipe, detects cable and couplant pipe and arranges side by side, cup joints on detecting cable and couplant pipe and establishes ties and have a plurality of electrode holders, the inside coupling electrode that is equipped with of electrode holder detects the cable and is connected with the coupling electrode electricity, is equipped with the couplant hole in electrode holder or coupling electrode, and the couplant pipe communicates with the couplant hole. Before using, according to actual operating conditions, the drilling machine is beaten out the drilling of the slightly large aperture of ratio electrode holder diameter, then expand the cable, put into drilling, change the water couplant into the foam couplant, the foam couplant passes through the couplant pipe and transports to in the drilling, reach coupling electrode and bore the wall and be well connected, play better measuring effect, get back the cable after the measurement finishes and accomplish measurement, and this utility model can be dry hole and water hole dual-purpose, practice thrift the time limit for a project, convenient to use, it is a safe efficient ground strides the hole resistivity CT and measures the cable.
Description
Technical Field
The utility model belongs to the technical field of engineering geophysical exploration, more specifically say, in particular to a coupling cable that is used for hole resistivity CT to survey is striden on ground.
Background
In recent years, various construction facilities have been developed vigorously with the increasing investment of the country in infrastructure construction. For some larger building facilities, including above-ground and underground buildings, the geological condition of the foundation or surrounding rock to be built is often required to be evaluated or evaluated more comprehensively before the building is built, and in order to better know the geological condition of the foundation or surrounding rock, some detection measures are usually required to be taken so as to know whether the geological safety hazard exists in the foundation or surrounding rock. Especially for underground engineering construction, if the geological condition of surrounding rocks cannot be found effectively in the construction and excavation process, unexpected geological disasters such as water inrush, mud inrush, collapse and the like are likely to occur. The consequences caused by the geological disasters are that machines are easily destroyed or knocked down to submerge the tunnel, and the normal construction is forcibly interrupted; and serious casualties are caused, huge economic losses are caused, and even some underground projects are forced to be stopped or changed. Therefore, an effective detection method is adopted to find out whether the foundation or the surrounding rock has geological defects, which is very necessary and has practical engineering significance.
The cross-hole resistivity CT method is an important geophysical exploration method, and has the unique advantages of economy, no damage, rapidness, long detection distance, high detection precision, rich detection information and the like, and has wide application in engineering detection. The working principle of the cross-hole resistivity CT method is that electrodes distributed on a measuring cable are used for supplying power to surrounding rocks or the ground, the resistivity of a target body is measured through the measuring electrodes, and then inversion imaging can be carried out on the resistivity and geological interpretation can be carried out, so that the corresponding detection purpose is achieved.
When cross-hole resistivity CT is measured, two drill holes need to be drilled on the ground underground, then a measuring cable is placed in the drill holes for measurement, in order to facilitate the placing in and taking out of the measuring cable, the diameter of the drilled hole needs to be larger than the diameter of a cable electrode, and therefore the problem of insufficient contact or even no contact between the electrode and the wall of the drill hole is caused to measurement, and further the measurement work cannot be completed.
In order to solve the problem of contact between the electrode and the hole wall of the drill hole, the existing method is to adopt a water coupling method, namely, water is injected into the drill hole, and the electrode and the hole wall are coupled by using water. The method has several disadvantages, firstly, when the underground fracture is relatively developed, especially when a relatively large water-guiding fracture exists, the injected water can be quickly guided away and can not be continuously stored in the drilled hole; secondly, when the geological condition is poor, collapse of the drill hole is easily caused after water injection, and measurement is affected; thirdly, the cable is easy to be trapped in the drilled hole and difficult to be taken out after water injection, so that economic loss is caused; fourthly, water injection can only be generally injected to the underground water level, and partial electrodes above the underground water level are difficult to use, so that the measurement effect is influenced.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a coupling cable for hole resistivity CT is surveyed is striden to ground, changes the water couplant into the foam couplant, and in the foam couplant passed through the couplant pipe and delivered to the drilling, it is well connected with the drilling wall to reach coupling electrode, reaches better measuring effect, the effectual inaccurate technical problem of measurement that has solved above-mentioned existence.
The utility model relates to a purpose and efficiency that is used for ground to stride hole resistivity CT to survey coupling cable is reached by following concrete technological means:
the utility model provides a coupling cable for hole resistivity CT is surveyed across on ground, it is including detecting cable and couplant pipe, it arranges side by side to detect cable and couplant pipe, and it has a plurality of electrode holders to cup joint the series connection on detecting cable and couplant pipe, the inside coupling electrode that is equipped with of electrode holder detects the cable and is connected with the coupling electrode electricity, is equipped with the couplant hole in electrode holder or coupling electrode, and the couplant pipe communicates with the couplant hole.
The electrode holder is cylindrical structure, and detection cable and couplant pipe are located the middle part of electrode holder and vertical arrangement.
The electrode seat is made of insulating plastic or rubber materials.
The coupling electrode is positioned in the middle of the electrode holder and is horizontally arranged.
The couplant hole is located inside the coupling electrode and is horizontally arranged.
The couplant hole is positioned inside the electrode holder and is horizontally arranged.
The couplant holes are positioned on the side edges of the coupling electrodes and are arranged in parallel side by side.
And a foam couplant is arranged in the couplant pipe.
The utility model discloses at least, include following beneficial effect:
practical application process easy operation, before the use, according to actual work condition, the drilling of the little aperture of specific electrode seat diameter is beaten out to the rig, then expand the cable, put into the drilling, change the water couplant into the foam couplant, the foam couplant passes through the couplant pipe and transports in the drilling, reach coupling electrode and bore the wall well and be connected, play better measuring effect, get back the cable after the measurement and accomplish measurement, and this utility model can dry the hole and the water hole is dual-purpose, practice thrift the time limit for a project, convenient to use, be a safe efficient ground cross-hole resistivity CT measurement cable.
Description of the drawings:
fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a plan view of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is a plan view of embodiment 2 of the present invention;
fig. 5 is a usage state diagram of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "two end," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," "fixed," and "screwed" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Example 1:
the utility model provides a coupling cable for hole resistivity CT is surveyed is striden to ground, as shown in attached 1, 2 and 5, it is including detecting cable 5 and couplant pipe 4, it arranges side by side to detect cable 5 and couplant pipe 4, cup joints on detecting cable 5 and couplant pipe 4 and establishes ties and have a plurality of electrode holders 2, 2 inside coupling electrode 1 that are equipped with of electrode holder, detect cable 5 and coupling electrode 1 electricity and be connected, are equipped with couplant hole 3 in electrode holder 2 or coupling electrode 1, and couplant pipe 4 and couplant hole 3 communicate. Change the water couplant for the foam couplant, the foam couplant passes through the couplant pipe and transports in the drilling, reaches coupling electrode and is connected well with the drilling wall, plays better measuring effect, gets back the cable after the measurement finishes and accomplishes measurement work to this utility model can dry hole and water hole dual-purpose, practice thrift time limit for a project, convenient to use.
Further, the electrode holder 2 is a cylindrical structure, and the detection cable 5 and the couplant pipe 4 are located in the middle of the electrode holder 2 and are vertically arranged. A plurality of electrode holders 2 are connected in series from top to bottom to form a set of electrode group, and the purpose of measurement can be achieved by two groups of electrodes.
Further, the electrode holder 2 is made of insulating plastic or rubber material.
Further, the coupling electrode 1 is located in the middle of the electrode holder 2 and is horizontally arranged. The coupling electrode 1 is made of metal materials, and the axis of the coupling electrode 1 is perpendicular to the axis of the electrode holder 2, so that the coupling electrode 1 can be electrically connected with the hole wall 6 well, and a good measuring effect is achieved.
Further, the couplant holes 3 are located inside the coupling electrode 1 and are horizontally arranged. The foam couplant is sprayed into the drill hole through the couplant hole 3, so that a good coupling effect is achieved.
Furthermore, there is foam couplant in couplant pipe 4, and the couplant adopts the foam, and the top and the foam source of couplant pipe 4 are connected, and the bottom of couplant pipe 4 is sealed, and when detecting, the foam is sent to the inspection hole through couplant pipe 4, and coupling electrode 1 forms the electricity through the coupling effect of foam and pore wall 6 and is connected, can also detect in dry hole.
Further, detect 5 external measuring instrument of cable, carry out the analysis to the measured signal through measuring instrument, can obtain the tectonic condition of geology, take back the cable after the measurement finishes and accomplish measurement work to this utility model can dry hole and water hole dual-purpose, practice thrift time limit for a project, convenient to use.
Practical application process easy operation, before the use, according to actual work condition, the drilling of the little aperture of specific electrode seat diameter is beaten out to the rig, then expand the cable, put into the drilling, change the water couplant into the foam couplant, the foam couplant passes through the couplant pipe and transports in the drilling, reach coupling electrode and bore the wall well and be connected, play better measuring effect, get back the cable after the measurement and accomplish measurement, and this utility model can dry the hole and the water hole is dual-purpose, practice thrift the time limit for a project, convenient to use, be a safe efficient ground cross-hole resistivity CT measurement cable.
Example 2:
the utility model provides a coupling cable for hole resistivity CT is surveyed is striden to ground, as shown in fig. 3-5, it is including detecting cable 5 and couplant pipe 4, it arranges side by side to detect cable 5 and couplant pipe 4, cup joints on detecting cable 5 and couplant pipe 4 and establishes ties and have a plurality of electrode holders 2, 2 inside coupling electrode 1 that are equipped with of electrode holder, detect cable 5 and coupling electrode 1 electricity and be connected, be equipped with couplant hole 3 in electrode holder 2 or coupling electrode 1, couplant pipe 4 and couplant hole 3 intercommunication. Change the water couplant for the foam couplant, the foam couplant passes through the couplant pipe and transports in the drilling, reaches coupling electrode and is connected well with the drilling wall, plays better measuring effect, gets back the cable after the measurement finishes and accomplishes measurement work to this utility model can dry hole and water hole dual-purpose, practice thrift time limit for a project, convenient to use.
Further, the electrode holder 2 is a cylindrical structure, and the detection cable 5 and the couplant pipe 4 are located in the middle of the electrode holder 2 and are vertically arranged. A plurality of electrode holders 2 are connected in series from top to bottom to form a set of electrode group, and the purpose of measurement can be achieved by two groups of electrodes.
Further, the electrode holder 2 is made of insulating plastic or rubber material.
Further, the coupling electrode 1 is located in the middle of the electrode holder 2 and is horizontally arranged. The coupling electrode 1 is made of metal materials, and the axis of the coupling electrode 1 is perpendicular to the axis of the electrode holder 2, so that the coupling electrode 1 can be electrically connected with the hole wall 6 well, and a good measuring effect is achieved.
Further, the couplant holes 3 are located inside the electrode holder 2 and are horizontally arranged. The foam couplant is sprayed into the drill hole through the couplant hole 3, so that a good coupling effect is achieved.
Further, the couplant holes 3 are located at the side of the coupling electrode 1 and arranged in parallel side by side.
Furthermore, there is foam couplant in couplant pipe 4, and the couplant adopts the foam, and the top and the foam source of couplant pipe 4 are connected, and the bottom of couplant pipe 4 is sealed, and when detecting, the foam is sent to the inspection hole through couplant pipe 4, and coupling electrode 1 forms the electricity through the coupling effect of foam and pore wall 6 and is connected, can also detect in dry hole.
Further, detect 5 external measuring instrument of cable, carry out the analysis to the measured signal through measuring instrument, can obtain the tectonic condition of geology, take back the cable after the measurement finishes and accomplish measurement work to this utility model can dry hole and water hole dual-purpose, practice thrift time limit for a project, convenient to use.
Practical application process easy operation, before the use, according to actual work condition, the drilling of the little aperture of specific electrode seat diameter is beaten out to the rig, then expand the cable, put into the drilling, change the water couplant into the foam couplant, the foam couplant passes through the couplant pipe and transports in the drilling, reach coupling electrode and bore the wall well and be connected, play better measuring effect, get back the cable after the measurement and accomplish measurement, and this utility model can dry the hole and the water hole is dual-purpose, practice thrift the time limit for a project, convenient to use, be a safe efficient ground cross-hole resistivity CT measurement cable.
The details of the present invention are well known to those skilled in the art.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (8)
1. A coupling cable for ground cross-hole resistivity CT detection, characterized in that: it is including detecting cable (5) and couplant pipe (4), detect cable (5) and couplant pipe (4) and arrange side by side, cup joint on detecting cable (5) and couplant pipe (4) and establish ties a plurality of electrode holders (2), electrode holder (2) inside is equipped with coupling electrode (1), and detection cable (5) are connected with coupling electrode (1) electricity, are equipped with couplant hole (3) in electrode holder (2) or coupling electrode (1), and couplant pipe (4) and couplant hole (3) intercommunication.
2. The coupling cable for ground cross-hole resistivity CT detection of claim 1, wherein: the electrode holder (2) is of a cylindrical structure, and the detection cable (5) and the couplant pipe (4) are located in the middle of the electrode holder (2) and are vertically arranged.
3. The coupling cable for ground cross-hole resistivity CT detection of claim 2, wherein: the electrode holder (2) is made of insulating plastic or rubber materials.
4. The coupling cable for ground cross-hole resistivity CT detection of claim 1, wherein: the coupling electrode (1) is positioned in the middle of the electrode holder (2) and is horizontally arranged.
5. The coupling cable for ground cross-hole resistivity CT detection of claim 1, wherein: the couplant holes (3) are positioned inside the coupling electrode (1) and are horizontally arranged.
6. The coupling cable for ground cross-hole resistivity CT detection of claim 1, wherein: the couplant hole (3) is positioned inside the electrode holder (2) and is horizontally arranged.
7. The coupling cable for ground cross-hole resistivity CT detection of claim 6, wherein: the couplant holes (3) are positioned on the side edges of the coupling electrodes (1) and are arranged in parallel side by side.
8. The coupling cable for ground cross-hole resistivity CT detection of claim 1, wherein: and a foam couplant is arranged in the couplant pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121179424.0U CN214669642U (en) | 2021-05-29 | 2021-05-29 | Coupling cable for ground cross-hole resistivity CT detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121179424.0U CN214669642U (en) | 2021-05-29 | 2021-05-29 | Coupling cable for ground cross-hole resistivity CT detection |
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| Publication Number | Publication Date |
|---|---|
| CN214669642U true CN214669642U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121179424.0U Expired - Fee Related CN214669642U (en) | 2021-05-29 | 2021-05-29 | Coupling cable for ground cross-hole resistivity CT detection |
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| CN (1) | CN214669642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311489A (en) * | 2021-05-29 | 2021-08-27 | 贵州晶禾科技有限公司 | Coupling cable for ground cross-hole resistivity CT detection |
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2021
- 2021-05-29 CN CN202121179424.0U patent/CN214669642U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311489A (en) * | 2021-05-29 | 2021-08-27 | 贵州晶禾科技有限公司 | Coupling cable for ground cross-hole resistivity CT detection |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |