CN208399056U - A kind of rigid borehole stressmeter of stress direction auto-changing - Google Patents
A kind of rigid borehole stressmeter of stress direction auto-changing Download PDFInfo
- Publication number
- CN208399056U CN208399056U CN201821202914.6U CN201821202914U CN208399056U CN 208399056 U CN208399056 U CN 208399056U CN 201821202914 U CN201821202914 U CN 201821202914U CN 208399056 U CN208399056 U CN 208399056U
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- CN
- China
- Prior art keywords
- rigid
- electromagnet
- measuring device
- pickup assembly
- borehole stressmeter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of rigid borehole stressmeters of stress direction auto-changing, including measuring device, signal pickup assembly and delivery device.The measuring device is connect with signal pickup assembly by conducting wire, send measuring device to the designated position in drilling by delivery device, signal pickup assembly is placed in except drilling, is recycled after acquiring data.Wherein, measuring device includes highly sensitive strain transducer, no-welding extension lead, rigid disk set seat, curvilinear rigid piece, signal pickup assembly is one, and there are four the signal recorders of receiving channel, its own has power supply, have the function of automatically recording data and storage, delivery device includes telescopic rod, electromagnet and electro-magnet switch, drilling internal stress size can only be measured the purpose of the utility model is to overcome existing borehole stressmeter and can not identify stress to press the defect in direction, propose the stress meter that can measure drilling internal stress size and direction discernment.
Description
Technical field
The utility model relates to borehole stability and borehole stress and strain measuring study technical fields, propose a kind of stress
The rigid borehole stressmeter of direction auto-changing.
Background technique
Having wide range of applications for drilling, has more in geology, mining industry, subway, tunnel and other underground space engineerings
Kind of purposes, for example geostress survey, forward probe, beat the scientific researches such as anchor shaft anchor cable or engineering activity, require progress bore operation.
Underground engineering is influenced very big by crustal stress, needs to consider in engineering construction size and the direction of locating crustal stress, to select
Suitable support pattern method and construction method are selected, in addition, the stability of underground engineering and safety and stress intensity, direction
There is substantial connection.So the construction of underground engineering must have accurate judgement to locating crustal stress, to prevent inappropriate because taking
Support pattern method and construction method cause the length of service or construction quality not up to standard, and then to normal production work generate
It influences, causes economic loss even casualties.
General detecting earth stress launches the method in drilling using borehole stressmeter, the sensor in the probe of front
The extruding for receiving surrounding hole wall obtains the size of stress.But the drilling in soft rock easily deforms under the influence of crustal stress, and
Hole wall is broken, and probe is not easy to launch thereto when borehole stressmeter uses wherein, and pops one's head in and be easy after measurement
It is stuck in drilling, since borehole stressmeter is at high cost, thus causes additional economic loss；On the other hand, general drilling is answered
Power meter can only measure the size of stress, and crustal stress is exactly its direction there are one critically important aspect.Judge main
The direction of the crustal stress of effect, is of great significance for underground engineering construction.Based on this, the utility model proposes one kind to answer
The rigid borehole stressmeter of power direction auto-changing.
Utility model content
The purpose of the utility model is to overcome existing borehole stressmeter can only measure drilling internal stress size and can not
Stress is identified to press the defect in direction, proposes a kind of rigid borehole stressmeter of stress direction auto-changing.
To achieve the goals above, the technical scheme adopted by the utility model is
A kind of rigid borehole stressmeter of stress direction auto-changing, including measuring device, signal pickup assembly and delivery
Device.The measuring device is connect with signal pickup assembly by conducting wire, is sent measuring device to drilling by delivery device
Designated position, signal pickup assembly are placed in except drilling, are recycled after acquiring data.
The measuring device is rigid including highly sensitive strain transducer, no-welding extension lead, rigid disk set seat, arc
Property piece, the high sensitivity strain transducer is highly sensitive resistance strain gage, simultaneous with no-welding extension lead, the height
Sensitivity strain transducer is located at the curvilinear rigid piece inner wall, comes into full contact with the curvilinear rigid piece, and a curvilinear rigid
Piece is equipped with two highly sensitive strain transducers, this two highly sensitive strain transducers are considered as one group, reach the arc
The deformation of rigid disk carries out the purpose of digitlization performance, converts electric signal with deformation signal for power and passes；The rigidity
Piece set seat is the irony cylindrical body that side and top surface are respectively provided with four and one slots, and the slot of side is for installing arc
Rigid disk is welded after being installed, and guarantees the stability of connection, the slot of top surface with delivery device for connecting；Institute
State curvilinear rigid piece altogether there are four, and the curvilinear rigid piece is numbered, respectively No. 1 rigid disk, No. 2 rigid disks, No. 3
Rigid disk and No. 4 rigid disks, No. 1 rigid disk is parallel with the top surface slot of rigid disk set seat in top view, and curvilinear rigid piece is solid
Due on the rigid disk set seat, and four curvilinear rigid pieces are not present contact with each other each other, are guaranteed with this
Wherein the deformation of some curvilinear rigid piece does not interfere with the deformation of its excess-three curvilinear rigid piece.
The signal pickup assembly is one, and there are four the signal recorder of receiving channel, respectively No. 1 receiving channel, 2
Number receiving channel, No. 3 receiving channels and No. 4 receiving channels, its own has power supply, has the function for automatically recording data and storage
Can, each channel connects one group of high sensitivity strain transducer, the channel number of the signal pickup assembly with it is described highly sensitive
Curvilinear rigid piece where spending strain transducer is corresponded according to number to carry out, and passes through no-welding extension lead and receiving channel
Terminals connection.
The delivery device includes telescopic rod, electromagnet and electro-magnet switch, and the telescopic rod has scale, can be by the brill
Hole stress meter is delivered in drilling, measures stress intensity and the direction of a certain specific position；The electromagnet and the electromagnet
Switch is located at the both ends of telescopic rod, and electromagnet one end connects borehole stressmeter, and electro-magnet switch one end is to hold end；Electromagnetism
The shape of iron is a rectangular shape, is matched with the slot of the rigid disk set seat top surface, which can be embedding
Enter into the slot of rigid disk set seat, the stability connected herein is guaranteed with this；The borehole stressmeter is delivered to specific bit
When setting, the electro-magnet switch on the telescopic rod, electromagnet power-off are operated, magnetism disappears, and recalls telescopic rod at this time.
The utility model has the beneficial effects that
1, the utility model can be carried out drill in full angle stress measurement, and can measure all directions stress presses feelings
Condition；
2, the utility model can realize stress database on-the-spot record and store, and borehole stressmeter is put into after drilling not
Must special messenger keep an eye on；
3, the utility model designs each device feature and is easy to make, and structure is simple, low in cost, easy to operate, recovery instrument
Signal recorder can be only recycled when device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the single curvilinear rigid piece of the utility model；
Fig. 2 is the top view of the borehole stressmeter structure of the utility model；
Fig. 3 is the structural schematic diagram of the telescopic rod of the utility model；
Fig. 4 is the patch panel layout drawing of the signal recorder of the utility model；
Fig. 5 is the rigid disk set seat schematic diagram of the utility model；
In figure: 1-highly sensitive strain transducer；2-curvilinear rigid pieces；3-signal recorders；4-no-welding extensions
Line；5-rigid disk set seats；6-electromagnet slots；7-No. 1 rigid disk；8-No. 2 rigid disks；9-No. 3 rigid disks；10—4
Number rigid disk；11-electro-magnet switch；12-telescopic rods；13-electromagnet；14-No. 1 receiving channel；15-No. 2 receptions are logical
Road；16-No. 3 receiving channels；17-No. 4 receiving channels；18-terminals；19-No. 1 rigid disk slot；20-No. 2 rigid disks
Slot；21-No. 3 rigid disk slots；22-No. 4 rigid disk slots.
Specific embodiment
With reference to the accompanying drawing, specific implementation of the patent mode is further described.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of rigid borehole stressmeter of stress direction auto-changing, including
Measuring device, signal pickup assembly and delivery device.
The measuring device includes highly sensitive strain transducer 1, no-welding extension lead 4, rigid disk set seat 5 and arc
Shape rigid disk 2, the high sensitivity strain transducer 1 is highly sensitive resistance strain gage, is affixed on 2 inner wall of curvilinear rigid piece
On, the two comes into full contact with, and the deformation of curvilinear rigid piece 2 can cause highly sensitive strain transducer 1 to deform, thus make to drill power with
The signal of deformation is converted into electric signal, and there are two highly sensitive strain transducer, two groups of Gao Ling for a curvilinear rigid piece matching
Sensitivity strain transducer is considered as one group；Highly sensitive strain transducer 1 itself has no-welding extension lead 4, makes described to exempt to weld
Connecing 4 other end of extension lead can extend out to outside drilling；The rigid disk set seat 5 is irony cylindrical body, and there are four just for side
Property piece slot (21, No. 4 rigid disk slots 22 of No. 1 rigid disk slot of rigid disk slot 20,3 of rigid disk slot 19,2), top
Face has 6, No. 1 19 radial direction of rigid disk slot of an electromagnet slot parallel with 6 radial direction of electromagnet slot, four rigidity
Piece slot spatial position is upper and lower relation, not connected, and in the counterclockwise direction the slot radial direction of top successively than under
Square slot deflects 45 °, achievees the purpose that 360 ° of full angle measurements of covering with this, and rigid disk slot is used to install curvilinear rigid piece 2,
It is welded after being installed, guarantees the stability of connection, the slot of top surface with delivery device for connecting；The arc is rigid
Property piece 2 altogether there are four, respectively number be rigid disk 9 and No. 4 rigid disk 10 of rigid disk 8,3 of No. 1 rigid disk 7,2, by rigidity
Gather the location arrangements of 5 side slot of seat, be not in contact with each other between four curvilinear rigid pieces, guarantees wherein some curvilinear rigid piece
Deformation will not cause the deformation of remaining three, prevent from differentiating that error occurs in stress direction.
The signal pickup assembly is signal recorder 3, and there are four connection paths altogether in patch panel, and respectively No. 1 connects
15, No. 3 receiving channel 16 and No. 4 receiving channels 17 of the receiving channel of channel 14,2 are received, each receiving channel connects same group
Arc where two highly sensitive strain transducers 1, the channel number of signal recorder 3 and highly sensitive strain transducer 1
Rigid disk is corresponded according to number and is carried out, and is connect by no-welding extension lead with receiving channel terminals 18, i.e. No. 1 rigidity
One group of high sensitivity strain transducer 1 of on piece 7 is connected to the terminals of No. 1 receiving channel 14 by no-welding extension lead 4
On 18, and so on, its excess-three group high sensitivity strain transducer is connected with the terminals of corresponding receiving channel.
The delivery device includes telescopic rod 12, electromagnet 13 and electro-magnet switch 11, and the telescopic rod 12 has scale,
The borehole stressmeter can be delivered to a certain designated position in drilling, measure stress intensity and the direction of this designated position；Institute
It states electromagnet 13 and the electro-magnet switch 11 is located at the both ends of telescopic rod 12, one end where electromagnet 13 connects drilling
Stress meter, one end where electro-magnet switch 11 are to hold end；The shape of electromagnet 13 is a rectangular shape, with the rigidity
The electromagnet slot 6 of 5 top surface of piece set seat matches, which is embedded into the electromagnet of rigid disk set seat 5
In slot 6, electro-magnet switch 11 is opened, electromagnet generates magnetic force, the rigid disk set seat 5 of irony is sucked, launches into drilling
Borehole stressmeter；After the borehole stressmeter is delivered to designated position, the electro-magnet switch 11 on telescopic rod 12, electromagnet are operated
13 power-off, magnetism disappear, and electromagnet 13 is separated with rigid disk set seat 5, recall telescopic rod 12 at this time.
The above is only the preferred embodiment of the utility model only, is not limitation with the utility model, all at this
Made any modifications, equivalent replacements, and improvements within the spirit and principle of utility model such as changes highly sensitive strain sensing
Device quantity, the shape for adjusting curvilinear rigid piece etc., should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of rigid borehole stressmeter of stress direction auto-changing, it is characterised in that: filled including measuring device, signal acquisition
It sets and delivery device, measuring device is connect with signal pickup assembly by conducting wire, sent measuring device to brill by delivery device
Designated position in hole, signal pickup assembly are placed in except drilling.
2. a kind of rigid borehole stressmeter of stress direction auto-changing according to claim 1, it is characterised in that: described
Measuring device includes highly sensitive strain transducer, no-welding extension lead, rigid disk set seat, curvilinear rigid piece；Each arc
Two highly sensitive strain transducers are arranged on shape rigid disk, i.e., are respectively furnished with a highly sensitive strain sensing close to end positions
Device, no-welding extension lead one end are welded on highly sensitive strain transducer, and the other end and the signal pickup assembly use
No-welding connection；There are four curvilinear rigid piece is total, it is connected and welds with rigid disk by slot.
3. a kind of rigid borehole stressmeter of stress direction auto-changing according to claim 1, it is characterised in that: described
Signal pickup assembly is one, and there are four the signal recorders of receiving channel, its own has power supply, has and automatically records data
With the function of storage.
4. a kind of rigid borehole stressmeter of stress direction auto-changing according to claim 1, it is characterised in that: described
Delivery device includes telescopic rod, electromagnet and electro-magnet switch, and telescopic rod has scale, and electromagnet is rectangular shape, welding
On telescopic rod, electromagnet wire arrangements are inside telescopic rod；Electromagnet and electro-magnet switch are located at the both ends of telescopic rod,
Electromagnet one end connects borehole stressmeter, and electro-magnet switch one end is to hold end.
5. a kind of rigid borehole stressmeter of stress direction auto-changing according to claim 2, it is characterised in that: described
Rigid disk set seat is the irony cylindrical body that side and top surface are respectively provided with four and one slots, and the slot shape of side is arc
Shape, for installing curvilinear rigid piece, the slot of top surface is rectangular shape, is connect for the electromagnet with delivery device.
6. a kind of rigid borehole stressmeter of stress direction auto-changing according to claim 3, it is characterised in that: described
The each receiving channel of signal recorder connects two highly sensitive strain transducers of the same curvilinear rigid on piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821202914.6U CN208399056U (en) | 2018-07-27 | 2018-07-27 | A kind of rigid borehole stressmeter of stress direction auto-changing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821202914.6U CN208399056U (en) | 2018-07-27 | 2018-07-27 | A kind of rigid borehole stressmeter of stress direction auto-changing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208399056U true CN208399056U (en) | 2019-01-18 |
Family
ID=65129577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821202914.6U Expired - Fee Related CN208399056U (en) | 2018-07-27 | 2018-07-27 | A kind of rigid borehole stressmeter of stress direction auto-changing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208399056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917989A (en) * | 2018-07-27 | 2018-11-30 | 中国矿业大学(北京) | A kind of rigid borehole stressmeter and operating method of stress direction auto-changing |
-
2018
- 2018-07-27 CN CN201821202914.6U patent/CN208399056U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917989A (en) * | 2018-07-27 | 2018-11-30 | 中国矿业大学(北京) | A kind of rigid borehole stressmeter and operating method of stress direction auto-changing |
| CN108917989B (en) * | 2018-07-27 | 2024-01-26 | 中国矿业大学(北京) | Rigid drilling stress meter capable of automatically changing stress direction and operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190118 Termination date: 20190727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |