CN206419057U - Rockbolt stress, which is surveyed, reads prior-warning device - Google Patents
Rockbolt stress, which is surveyed, reads prior-warning device Download PDFInfo
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- CN206419057U CN206419057U CN201621423977.5U CN201621423977U CN206419057U CN 206419057 U CN206419057 U CN 206419057U CN 201621423977 U CN201621423977 U CN 201621423977U CN 206419057 U CN206419057 U CN 206419057U
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Abstract
Surveyed the utility model discloses a kind of rockbolt stress and read prior-warning device, it is characterised in that：Quantify scale including lifts plate, deformation cover and stress.Described deformation cover is the nearly hemispherical device of steel, and pointer is fixed with thereon, and pointer is located at the 1/2 of deformation cover height, and points to the normal direction in deformation cover section；Deformation cover is fastened in lifts plate by clamp nut, normal direction bearing capacity of the deformation cover with not less than the maximum axle power of anchor pole, there is monotonic increase relation between deformation cover load and pointer travel.Described pointer points to stress and quantifies scale, and stress quantifies scale and is marked with the scale that unit is kN, and the meter full scale of anchor pole is disrumpent feelings load 0 ~ 60% is labeled as green, and 60% ~ 90% meter full scale is labeled as yellow, and more than 90% meter full scale is labeled as red.The invention can be monitored under conditions of it need not increase extra cost to whole anchor poles, and the security and economy to site operation are significant.
Description
Technical field
Field is monitored the present invention relates to rockbolt stress, particularly a kind of rockbolt stress, which is surveyed, reads prior-warning device.
Background technology
With the development of China's economic society, underground mine, tunnel, subway, water power chamber etc. build more and more, depth
Constantly increase, more engineerings are in badly matter condition, and the support issues faced therewith are also increasingly protruded.Such as soft rock
The problems such as large deformation, highland pressure and difficult supporting.Reinforced in main bodys such as conventional anchor pole side slope, mine laneway, tunnel, dam bodys
During use, the stress of anchor pole can not intuitively be shown, it is impossible to meet the requirement given warning in advance.At the scene in engineering anchoring, anchor
Bar stress and malformation state are indefinite, only judge whether safety by workman personal experience, easily bring safety hidden
Suffer from.At present using more rockbolt stress detection means by flexible member electronic dynamometer, flat jack pointer dynameter and anchor
Bar nondestructive testing instrument.Due to the reason such as general dynamometer volume is big, cost is high and inconvenient for use, its application is only limited to very small amount anchor
The selective examination and experimental study of bar stressing conditions, it is impossible to detected to all anchor poles in engineering.Although anchor pole detection without damage instrument can
To detect whole anchor poles, but efficiency is too low and needs professional and technical personnel.Therefore, need a kind of rockbolt stress badly at present and survey reading in advance
Alarm device warns anchor pole disrumpent feelings intuitively to show whether rockbolt stress meets design of its support requirement, and when anchor pole stand under load is too high
It is dangerous.
Before making the present invention, a kind of Double tray anchor-holding force of anchor bolt of the Invention Announce of Application No. 201510750138.8 is real
When monitoring method and device.It is characterized in that by installing display instrument on anchor pole, foil gauge is received by analog-digital converter
The strain value collected is converted into data signal, then calculates anchor force by controller and control to send alarm signal.It can be seen that the invention
Cloth circuits are needed, and install complicated in practice of construction, cost is high, is not particularly suited for using on a large scale.
A kind of mine anchor rod dynamometer of the Invention Announce of Application No. 201610271396.2.The invention should including resistance
Variant anchor rod force-measuring sensor and secondary measuring instrument, it is characterised in that:Resistance-strain type anchor rod force-measuring sensor includes middle control
Loop bar and belt stress sensor group, belt stress sensor group built in hollow loop bar, belt stress sensor group includes multiple
The annular strain gauge of uniform monomer and built-in foil resistance piece, foil resistance piece are connected by wire；Secondary measuring instrument
With data processing, real-time display, wire transmission or wireless transmission function on the spot.But the invention accessory cost is high, less economical,
Low construction efficiency, normal work depends on supply of electric power.
The content of the invention
The problem of existing for foregoing invention, it is necessary to a kind of without supply of electric power, without sophisticated sensor and data analysis,
The rockbolt stress of conversion element, which is surveyed, reads prior-warning device.In addition, the rockbolt stress is estimated prior-warning device and also had to anchor pole
Anchoring quality will not produce infringement, simple installation, survey the advantages of reading that simple, stress and deformation is constant, can use on a large scale.
The present invention reads prior-warning device for a kind of not enough surveyed there is provided rockbolt stress of existing anchor axial force monitoring device
And its application method.Reach that the deformation produced by rockbolt stress is quantified as rockbolt stress by the invention, with early warning anchor rod body
The mode of tensile failure model, further improves bolt action and construction quality and the purpose eliminated safe hidden trouble.
To achieve the above object, the present invention is adopted the following technical scheme that：Rockbolt stress, which is surveyed, reads prior-warning device, and its feature exists
In：Quantify scale including lifts plate, deformation cover and stress；Described lifts plate is in contact with country rock, and described deformation cover passes through
Clamp nut is fastened in lifts plate, and pointer is fixed with described deformation cover, is pointed to stress and is quantified scale, described by strength
Change the exposed junction that scale is fixed on anchor pole.
Further, described lifts plate is made up of steel plate, and shape is generally square, and center is provided with hole, and anchor pole can be from
In pass through, its effect is by rock（Soil）The power that body is acted on anchor pole passes to deformation cover, and the size of lifts plate is more than deformation and covered,
Enough deformation spaces are reserved for deformation cover.
Further, described deformation cover is the nearly hemispherical device of steel, and pointer is fixed with thereon, and pointer is located at deformation and covered
At the 1/2 of height, and point to the normal direction in deformation cover section；The side that is contacted with lifts plate of deformation cover is circular open, and tight
Gu the side of nut contact is concave crown；Normal direction bearing capacity of the deformation cover with not less than the maximum axle power of anchor pole, deformation cover institute load-bearing
Carry and there is monotonic increase relation between corner, with the increase of load, deformation cover is deformed upon, pointer vertical section where it
It is interior to produce rotation.
Further, it is, with graduated plastics arc chi, and to be had according to meter full scale that described stress, which quantifies scale,
Different colours subregion.One end that stress quantifies scale carries clip, could be sandwiched in the exposed junction of anchor pole.
Further, described stress quantifies scale label and color subregion using the determination of following methods:To described change
Shape covers on laboratory and carries out rating test, determines its axle power-pointer travel relation, scale label is drawn accordingly, unit is kN；
Stress quantifies the meter full scale of the disrumpent feelings load 0 ~ 60% of scale upper bolt labeled as green, and 60% ~ 90% meter full scale is labeled as Huang
Color, more than 90% meter full scale is labeled as red；When rockbolt stress survey reading prior-warning device, which is assembled, does not apply axle power, pointer
Point to 0 scale.
The application method of the present invention is as follows.
（1）Anchor pole grouted part is fixed on after anchor hole, lifts plate, deformation cover, clamp nut are installed successively, with fastening spiral shell
It is female that deformation cover is fastened in lifts plate, stress is finally quantified into the exposed junction that scale is fixed on anchor pole.
（2）The deformation cover of different size anchor pole collocation dimension, can accurately show rockbolt stress state the most
Out.Clamp nut depends on the size of bolt pretension to the tightness of deformation cover, will need to only become when screwing clamp nut
Shape cover is fastened to pointer and points to the corresponding scale that stress quantifies scale.
（3）Anchor pole is put into after normal use, and workman reads bolt shaft force value according to pointer position, to judge whether anchor pole accords with
Close engine request or whether reach early warning value.
Beneficial effects of the present invention are as follows.
The present invention is using theoretical foundation to support there is provided one kind without supply of electric power, without sophisticated sensor and data point
Analysis, conversion element, and the anchoring quality of anchor pole will not be produced infringement, simple installation, survey read simply, stress and deformation it is constant,
The anchor pole that can be used on a large scale（Rope）Stress, which is surveyed, reads prior-warning device.The invention is under conditions of it need not increase extra cost
Whole anchor poles are monitored, and are not required to professional and technical personnel's operation, common laborer can complete, this peace to site operation
Full property and economy are all significant.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be introduced.
Fig. 1 section of structures of the present invention.
Fig. 2 plans of the present invention.
In figure：1- lifts plates；2- deformation covers；3- clamp nuts；4- stress quantifies scale；5- pointers；6- anchor bar bodies；7- encloses
Rock；8- clips.
Embodiment
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of rockbolt stress, which is surveyed, reads prior-warning device, it is characterised in that：Including lifts plate 1, deformation cover 2 and by
Strength scale 4.Described lifts plate 1 is in contact with country rock 7；Described deformation cover 2 is fastened on lifts plate by clamp nut 3
On 1, pointer 5 is fixed with described deformation cover 2, stress is pointed to and quantifies scale 4, described stress quantifies scale 4 and is fixed on anchor
The exposed junction of bar 6.
Further, described lifts plate 1 is made up of steel plate, and shape is generally square, and center is provided with hole, and anchor pole 6 can
Extend there through.Its effect is by rock（Soil）The power that body is acted on anchor pole passes to deformation cover 2, and the size of lifts plate 1, which is more than, to be become
Shape cover 2, enough deformation spaces are reserved for deformation cover 2.
Further, described deformation cover 2 is the nearly hemispherical device of steel, and pointer 5 is fixed with thereon, and pointer 5, which is located at, to be become
At the 1/2 of shape cover height, and point to the normal direction in 2 sections of deformation cover；Opened for circle the side that deformation cover 2 is contacted with lifts plate 1
Mouthful, the side contacted with clamp nut 3 is concave crown；Deformation cover 2 has the normal direction bearing capacity not less than the maximum axle power of anchor pole 6, becomes
There is monotonic increase relation between the load of shape cover 2 and pointer travel, with the increase of load, deformation cover 2 is deformed upon, and is referred to
Pin 5 produces rotation where it in vertical section.
Further, it is, with graduated plastics arc chi, and to be had according to meter full scale that described stress, which quantifies scale 4,
Different colours subregion；One end that stress quantifies scale carries clip 8, could be sandwiched in the exposed junction of anchor pole 6.
Further, described stress quantifies the scale of scale 4 and color subregion using the determination of following methods:To described change
Shape cover 2 carries out rating test in laboratory, determines its axle power-pointer travel relation, scale label is drawn accordingly, unit is kN；
Stress quantifies the meter full scale of the disrumpent feelings load 0 ~ 60% of the upper bolt of scale 4 labeled as green, and 60% ~ 90% meter full scale is labeled as
Yellow, more than 90% meter full scale is labeled as red；When rockbolt stress survey reading prior-warning device, which is assembled, does not apply axle power, refer to
Pin points to 0 scale.
The application method of the present invention is as follows.
（1）The grouted part of anchor pole 6 is fixed on after anchor hole, lifts plate 1, deformation cover 2, clamp nut 3 are installed successively, with tight
Gu nut 3 is fastened on cover 2 is deformed in lifts plate 1, stress is finally quantified into the exposed junction that scale 4 is fixed on anchor pole.
（2）The deformation cover 2 of the collocation dimension of different size anchor pole 6, can accurately show the stress of anchor pole 6 the most
Show to come；The tightness of 3 pairs of clamp nut deformation cover 2 depends on the size of the pretightning force of anchor pole 6, when screwing clamp nut 3 only
It need to will deform cover 2 and be fastened to the corresponding scale that pointer 5 points to stress quantization scale 4.
（3）Anchor pole 6 is put into after normal use, and workman can read the axle power value of anchor pole 6 according to pointer position, to judge anchor pole 6
Whether meet engine request, or whether reach early warning value.
One kind of embodiment belonging to above, simply more preferably specific embodiment of the invention, those skilled in the art
The usual variations and alternatives that member is carried out in the range of technical solution of the present invention all should be comprising within the scope of the present invention.
Claims (4)
1. rockbolt stress, which is surveyed, reads prior-warning device, it is characterised in that：Quantify scale including lifts plate, deformation cover and stress；Described
Lifts plate is in contact with country rock；Described deformation cover is fastened in lifts plate by clamp nut, fixed on described deformation cover
There is pointer, point to stress and quantify scale, described stress quantifies the exposed junction that scale is fixed on anchor pole.
2. rockbolt stress as claimed in claim 1, which is surveyed, reads prior-warning device, it is characterised in that：Described lifts plate is by steel plate system
Into center is provided with hole, and anchor pole can be extended there through, and the power that rock mass is acted on anchor pole passes to deformation cover, the chi of lifts plate
It is very little to be more than deformation cover, reserve enough deformation spaces for deformation cover.
3. rockbolt stress as claimed in claim 1, which is surveyed, reads prior-warning device, it is characterised in that：Described deformation cover is steel nearly half
Spherical device, is fixed with pointer thereon, and pointer is located at the 1/2 of deformation cover height, and points to the normal direction in deformation cover section；Become
The side that shape cover is contacted with lifts plate is circular open, and the side contacted with clamp nut is concave crown；Deformation cover, which has, to be not less than
, there is monotonic increase relation between deformation cover load and pointer travel, with lotus in the normal direction bearing capacity of anchor pole maximum axle power
The increase of load, deformation cover is deformed upon, and pointer produces rotation where it in vertical section.
4. rockbolt stress as claimed in claim 1, which is surveyed, reads prior-warning device, it is characterised in that：It is band that described stress, which quantifies scale,
Graduated plastics arc chi, and different colours subregion is had according to meter full scale；One end that stress quantifies scale carries clip,
It could be sandwiched in the exposed junction of anchor pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423977.5U CN206419057U (en) | 2016-12-23 | 2016-12-23 | Rockbolt stress, which is surveyed, reads prior-warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423977.5U CN206419057U (en) | 2016-12-23 | 2016-12-23 | Rockbolt stress, which is surveyed, reads prior-warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206419057U true CN206419057U (en) | 2017-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621423977.5U Expired - Fee Related CN206419057U (en) | 2016-12-23 | 2016-12-23 | Rockbolt stress, which is surveyed, reads prior-warning device |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523008A (en) * | 2016-12-23 | 2017-03-22 | 山东科技大学 | anchor rod stress measuring reading warning device and usage method |
| CN110411643A (en) * | 2019-08-21 | 2019-11-05 | 中国矿业大学 | A kind of monitoring device and method of hollow grouting cable anchor slurry pressure |
| CN110986812A (en) * | 2019-11-29 | 2020-04-10 | 中国矿业大学 | Method and device for online monitoring stress and deformation of surrounding rock of roadway |
-
2016
- 2016-12-23 CN CN201621423977.5U patent/CN206419057U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523008A (en) * | 2016-12-23 | 2017-03-22 | 山东科技大学 | anchor rod stress measuring reading warning device and usage method |
| CN106523008B (en) * | 2016-12-23 | 2023-07-21 | 山东科技大学 | Anchor rod stress measuring, reading and early warning device and use method |
| CN110411643A (en) * | 2019-08-21 | 2019-11-05 | 中国矿业大学 | A kind of monitoring device and method of hollow grouting cable anchor slurry pressure |
| CN110986812A (en) * | 2019-11-29 | 2020-04-10 | 中国矿业大学 | Method and device for online monitoring stress and deformation of surrounding rock of roadway |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20181223 |