CN107035395A - Pressure-relieving achor bar pallet and application method with alarm function - Google Patents
Pressure-relieving achor bar pallet and application method with alarm function Download PDFInfo
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- CN107035395A CN107035395A CN201710427952.5A CN201710427952A CN107035395A CN 107035395 A CN107035395 A CN 107035395A CN 201710427952 A CN201710427952 A CN 201710427952A CN 107035395 A CN107035395 A CN 107035395A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- QLMNCUHSDAGQGT-UHFFFAOYSA-N sintofen Chemical compound N1=C(C(O)=O)C(=O)C=2C(OCCOC)=CC=CC=2N1C1=CC=C(Cl)C=C1 QLMNCUHSDAGQGT-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 57
- 238000007906 compression Methods 0.000 claims abstract description 57
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims description 22
- 238000013461 design Methods 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 238000007723 die pressing method Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 210000001320 hippocampus Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0086—Bearing plates
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/02—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection having means for indicating tension
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of pressure-relieving achor bar pallet and application method with alarm function, by allowing pressure absorption systems and stress caution system to constitute；Described allows pressure absorption systems to be made up of top tray, variable cross-section by compression leg and lower tray, and described stress alarming device is made up of stress caution gage and warning pointer；Described variable cross-section is by compression leg totally four, the vertically annular array distribution of the vertical central shaft of pallet, and inclined relative to central shaft, its bottom is welded in lower tray, in the deep-slotted chip breaker of top insertion top tray.In use, by compression leg top, arcuately groove is slided variable cross-section the present invention, and then warning pointer is rotated, and the stress of anchor pole quickly, is intuitively judged by observation, so as to judge the safety stock situation of rockbolt stress；Using deformation characteristic of the variable cross-section by compression leg, the stress of anchor pole is connected with variable cross-section by the compatible deformation of compression leg, can play allowing the purpose of pressure, the different die pressing types that allow can be realized again, its is easy for installation, simple to operate, is widely portable to engineering site.
Description
Technical field
The present invention relates to underground engineering anchor bar suspension device field, particularly a kind of pressure-relieving achor bar support with alarm function
Disk and application method.
Background technology
With the development of China's economic society, the underground space engineering such as underground mine, subway, water power chamber is built increasingly
Many, mining depth is continuously increased, and more underground chambers are under the conditions of the severe geology such as high-ground stress, soft rock, surrounding rock of chamber
The characteristics of usually showing large deformation, the support issues faced therewith are also increasingly protruded.During underground engineering support, anchor
Bar is support materials most widely used, that consumption is most, but existing conventional anchor elongation percentage is relatively low, it is impossible to adapt to roadway surrounding rock
Large deformation feature；Under country rock Impact Load, conventional anchor energy-absorbing erosion control poor-performing, it is difficult to ensure under support action
The stability of country rock.In addition, the rockbolt stress state inside roadway surrounding rock can not be showed intuitively again, and be showed
Some rockbolt stress electronics, hydraulic pressure measurement system because cost is higher and complex operation can not widely use, cause substantial amounts of non-
Specialty surveys reading personnel, the especially relatively low common laborer of schooling and is difficult to the stressing conditions for judging anchor pole, so as to be unable to anticipation
The potential danger of roadway surrounding rock, and then the safety hazards of roadway surrounding rock presence can not be investigated.
A kind of increase resistance pressure-relieving achor bar as Chinese patent 201610256081.0 is disclosed by the body of rod and allow pressure component two parts
Composition, presses the socket place of component to be provided with some grades of latches to limit the displacement of the body of rod by the body of rod with allowing.When anchor pole axial tension
When reaching design load, latch can be cut step by step, so that the body of rod is with allowing pressure component can the relative displacement for sliding setting.This hair
Although bright can provide the working resistance increased step by step by increasing the shear resistance of latch to country rock, it can not embody and enclose
The stressing conditions of anchor pole inside rock, latch anchor pole while cutting step by step can be failed to the support action of country rock, and country rock can be produced
Raw Relative sliding, effect of inertia is possible to bring potential safety hazard.
The pressure-relieving achor bar of pressure amount, including mobile jib are allowed as Chinese patent 201611155226.4 discloses a kind of real-time monitoring
Body, Bower Anchor body, spring and drawstring etc.；The front end of main rod body is provided with Bower Anchor body, and Bower Anchor body is plugged on the grafting of main rod body front end
In chamber, connected between Bower Anchor body and main rod body by spring, drawstring is provided with institute's Bower Anchor body, mobile jib is stretched out in one end of drawstring
Body and it is connected with displacement readings unit, displacement readings unit is used for the displacement for showing drawstring.This inventive structure is compact, design is skilful
It is wonderful, but allowing for anchor pole presses reasonable stress slightly to wait to consider；Determined under the complicated geological conditions of engineering site anchor pole it is actual by
During power situation, grafting chamber can be squeezed destruction so as to limit the movement of drawstring, and theoretical larger with actual deviation, cost is higher,
Limit its large-scale use.
Therefore, urgently invention one kind can allow pressure energy-absorbing at present, can intuitively be showed by external measurement device again it is internal by
The novel anchor rod pallet apparatus of power situation.
The content of the invention
It is existing to solve it is an object of the invention to provide a kind of pressure-relieving achor bar pallet and application method with alarm function
Elongation percentage bottom, energy-absorbing erosion control poor-performing with the presence of anchor pole, can not intuitively to show internal stressing conditions existing and do not possess warning
The problem of function, so as to effectively control the stability of roadway surrounding rock, the potential danger of anticipation roadway surrounding rock, warning safe accident is hidden
Suffer from.
To achieve the above object, the present invention is adopted the following technical scheme that.
A kind of pressure-relieving achor bar pallet and application method with alarm function, it is characterised in that：By allow pressure absorption systems and
Stress caution system is constituted.
Further, it is described to allow pressure absorption systems to be made up of top tray, variable cross-section by compression leg and lower tray.Described is upper
The upper plane of pallet is anchored by bolt-nut, and the deep-slotted chip breaker of its bottom surface four is contacted with variable cross-section by compression leg respectively；Described change
Section allows compression leg totally four, vertically the annular array distribution of the vertical central shaft of pallet, its bottom inclined relative to central shaft
Portion is welded in lower tray, in the deep-slotted chip breaker of top insertion top tray；The baseplane of described lower tray is attached on country rock, its
Upper plane is welded with variable cross-section by compression leg.
Further, described top tray is circular high strength steel plate, and center pore-forming is used to pass through set anchor pole, and thickness is 18mm,
Its top surface is horizontal plane, and bottom surface is provided with four deep-slotted chip breakers, central shaft circular array distribution of its deep-slotted chip breaker along top tray.
Further, described variable cross-section is special high tensile reinforcement by compression leg, with certain camber, its curvature from it is lower extremely
On gradually increase；Bottom tapered section is contracted to 10mm by a diameter of 12mm of compression leg, top variable cross-section by compression leg diameter, and its bottom is inclined
Subiculum panel surface is tiltedly firmly welded on, top has been done in the deep-slotted chip breaker of the embedded top tray of round and smooth processing.In rockbolt stress, become and cut
Face allows compression leg top, and arcuately groove is slided, tilt quantity increase, and two pallets are approached up and down, and then plays a part of allowing pressure energy-absorbing.With
The increase of anchor rod drawing power, variable cross-section is deformed also more greatly, but because bottom shank diameter is larger by compression leg, therefore anti-load is strong
Degree will not be weakened, and the reinforcing bar of different cross section and three-dimensional space shape can realize the different die pressing types that allow.
Further, described lower tray is circular high strength steel plate, and center pore-forming is used to pass through set anchor pole, and thickness is 15mm,
Plane and baseplane are horizontal plane thereon.
Further, the fluting shape of cross section of described deep-slotted chip breaker is semicircle, diameter about 12mm；The fluting of deep-slotted chip breaker
Length is 40-60mm.This fluting shape contributes to variable cross-section to be slided by round end at the top of compression leg in groove, reduces friction, realization allows
The purpose of pressure, and different slotting lengths and fluting direction can realize the different die pressing types that allow.
Further, described stress caution system is made up of stress caution gage and warning pointer.Described stress police
Indicating chi is arranged on the pop-up panel surface above a certain deep-slotted chip breaker, and its length is identical with the length of deep-slotted chip breaker.Described warning refers to
Pin is arranged on below top tray, and top is enclosed on anchor pole, and stress caution gage is pointed in end.
Further, described stress caution gage carries background color, and the direction color slided along variable cross-section by compression leg is by shallow
Set to deep subregion, arc slot length 50% within its background color be green, 50%-80% is yellow, and more than 80% is red.
Further, described warning pointer is the thin steel bar of " L " shape, and long side direction carries two annulus of size, and it is distinguished
Pass through and be enclosed on anchor pole and a certain variable cross-section by the top of compression leg, short side direction points to stress caution gage.When anchor pole is by pulling capacity,
By compression leg top, arcuately groove is slided variable cross-section, and then interlocking warning pointer warns its stress along top tray edge
Scale rotates.
The present invention a kind of pressure-relieving achor bar pallet and application method with alarm function, according to design requirement in specified location
By intend allow pressure it is anchor rod anchored in country rock after, can use according to the following steps：
（1）Installation is welded with the variable cross-section designed according to design requirement by the lower tray of compression leg, and its bottom surface is attached at the external table of country rock
Face；
（2）The big small circle ring for warning pointer is respectively fitted over anchor pole and a certain variable cross-section by compression leg top；
（3）Top tray with stress caution gage is installed, variable cross-section is respectively embedded into pop-up tray bottom by it by the top of compression leg
Deep-slotted chip breaker in, be placed in the initial position in deep-slotted chip breaker, make warning pointer point to stress caution gage initial position；
（4）Bolt-nut is anchored at anchor pole top, fixed top tray；
（5）In use, rockbolt stress, variable cross-section continues run-off the straight because being squeezed by compression leg and deformed, its top
Arcuately groove is slided, and then is interlocked warning pointer and rotated, and turns to bottom corresponding during a certain position of stress caution gage
Color is to represent the current stress of anchor pole, it can be determined that the safety stock situation of rockbolt stress；If variable cross-section is slided by compression leg
To the end of deep-slotted chip breaker, warning pointer can not be rotated further, and variable cross-section by compression leg flexural deformation it is larger when, warning anchor pole is held
The load received is already close to ultimate load.
A kind of stress of the present invention readable anchor pole directly perceived is by pressure device and application method, and its advantage is：
（1）It is with low cost using variable cross-section by compression leg, and serve and allow the purpose of pressure, efficiently solve existing anchor pole elongation percentage
It is low, so that the problem of not adapting to the large deformation feature of roadway surrounding rock；
（2）, can be various without any electric-type foil gauge, circuit and hydraulic system using readable stress caution gage directly perceived
Used under complex environment；
（3）Using deformation characteristic of the variable cross-section by compression leg, rockbolt stress state and variable cross-section have been contacted by the deflection of compression leg
Come, can quickly, intuitively judging the stress of anchor pole by observation, there is provided a kind of anchor pole branch suitable for engineering site
Shield acts on fast evaluation method；
（4）Different engineering geological conditions, can be set different variable cross-sections by compression leg, can be realized according to its compatible deformation different
Die pressing type is allowed, so as to be adapted to various engineering type.
Brief description of the drawings
Fig. 1 and Fig. 2 is the schematic diagram of different visual angles of the present invention.
Marginal data：1- top trays；2- variable cross-sections are by compression leg；3- lower trays；4- deep-slotted chip breakers；5- stress caution gages；6-
Warn pointer；7- bolt-nuts；8- anchor poles.
Embodiment
The present invention provides a kind of pressure-relieving achor bar pallet and application method with alarm function, for make the purpose of the present invention,
Technical scheme and effect are clearer, clear and definite, and the embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
As shown in Fig. 1, the present invention a kind of pressure-relieving achor bar pallet and application method with alarm function, it is characterised in that：
By allowing pressure absorption systems and stress caution system to constitute.
Further, it is described to allow pressure absorption systems to be made up of top tray 1, variable cross-section by compression leg 2 and lower tray 3.It is described
Top tray 1 upper plane by the anchoring of bolt-nut 7, the deep-slotted chip breaker 4 of its bottom surface four contacts with variable cross-section by compression leg 2 respectively；
Described variable cross-section is by compression leg 2 totally four, and vertically the annular array distribution of the vertical central shaft of pallet, inclined relative to central shaft
State, its bottom is welded in lower tray 3, in the deep-slotted chip breaker 4 of top insertion top tray 1；The baseplane patch of described lower tray 3
Invest on country rock, plane is welded with variable cross-section by compression leg 2 thereon.
Further, described top tray 1 is circular high strength steel plate, and center pore-forming is used to pass through set anchor pole 8, and thickness is
18mm, its top surface is horizontal plane, and bottom surface is provided with four deep-slotted chip breakers 4, central shaft circular array of its deep-slotted chip breaker 4 along top tray 1
Distribution.
Further, described variable cross-section is special high tensile reinforcement by compression leg 2, and with certain camber, its curvature is under
It is supreme gradually to increase；Bottom tapered section foreshortens to 10mm by a diameter of 12mm of compression leg 2, top variable cross-section by the diameter of compression leg 2, its bottom
Portion is tilted and is firmly welded on the surface of lower tray 3, and top has been done in the deep-slotted chip breaker 4 of the embedded top tray 1 of round and smooth processing.Anchor pole 8 by
During to pulling capacity, by the top of compression leg 2, arcuately groove 4 is slided variable cross-section, tilt quantity increase, and two pallets are approached up and down, and then are played
Allow pressure energy-absorbing effect.With the increase of the pulling capacity of anchor pole 8, variable cross-section is deformed also more greatly, but because the bottom body of rod is straight by compression leg 2
Footpath is larger, therefore anti-load intensity will not be weakened, and the reinforcing bar of different cross section and three-dimensional space shape can realize the different pressures that allow
Pattern.
Further, described lower tray 3 is circular high strength steel plate, and center pore-forming is used to pass through set anchor pole 8, and thickness is
15mm, plane and baseplane are horizontal plane thereon.
Further, the fluting shape of cross section of described deep-slotted chip breaker 4 is semicircle, diameter about 12mm；Deep-slotted chip breaker 4 is slotted
Length is 40-60mm.This fluting shape contributes to variable cross-section to be slided by the top round end of compression leg 2 in groove, reduces friction, realization allows
The purpose of pressure, and different slotting lengths and fluting direction can realize the different die pressing types that allow.
Further, described stress caution system is made up of stress caution gage 5 and warning pointer 6.Described stress
Caution gage 5 is arranged on the surface of top tray 1 of a certain top of deep-slotted chip breaker 4, and its length is identical with the length of deep-slotted chip breaker 4.Described
Pointer 6 is warned to be arranged on the lower section of top tray 1, top is enclosed on anchor pole 8, and stress caution gage 5 is pointed in end.
Further, described stress caution gage 5 carries background color, the direction color slided along variable cross-section by compression leg 2 by
Shallow to deep subregion is set, the length of deep-slotted chip breaker 4 50% within its background color be green, 50%-80% is yellow, and more than 80% is red.
Further, described warning pointer 6 is the thin steel bar of " L " shape, and long side direction carries two annulus of size, and it is distinguished
Pass through and be enclosed on anchor pole 8 and a certain variable cross-section by the top of compression leg 2, short side direction points to stress caution gage 5.In anchor pole 8 by drawing
During power, by the top of compression leg 2, arcuately groove 4 is slided variable cross-section, and then gearing warning pointer 6 makes it along the edge of top tray 1
Stress caution gage 5 rotate.
The present invention a kind of pressure-relieving achor bar pallet and application method with alarm function, according to design requirement in specified location
By intend allow pressure anchor pole 8 be anchored in country rock after, can use according to the following steps：
（1）Installation is welded with the variable cross-section designed according to design requirement by the lower tray 3 of compression leg 2, and it is external that its bottom surface is attached at country rock
Surface；
（2）The big small circle ring for warning pointer 6 is respectively fitted over anchor pole 8 and a certain variable cross-section by the top of compression leg 2；
（3）Top tray 1 with stress caution gage 5 is installed, variable cross-section is respectively embedded into top tray 1 by it by the top of compression leg 2
In the deep-slotted chip breaker 4 of bottom, the initial position in deep-slotted chip breaker 4 is placed in, warning pointer 6 is pointed to the first of stress caution gage 5
Beginning position；
（4）Bolt-nut 7 is anchored at the top of anchor pole 8, fixed top tray 1；
（5）In use, the stress of anchor pole 8, variable cross-section continues run-off the straight because being squeezed by compression leg 2 and deformed, and it is pushed up
Arcuately groove 4 is slided at end, and then warning pointer 6 is rotated, and is turned to corresponding during stress 5 a certain position of caution gage
Background color is to represent the current stress of anchor pole 8, it can be determined that the safety stock situation of the stress of anchor pole 8；If variable cross-section is by compression leg 2
Slide into the end of deep-slotted chip breaker 4, warning pointer 6 can not be rotated further, and variable cross-section by the flexural deformation of compression leg 2 it is larger when, warning
The load that anchor pole 8 is born is already close to ultimate load.
Claims (4)
1. a kind of pressure-relieving achor bar pallet and application method with alarm function, by allowing pressure system and stress caution system to constitute,
Characterized in that, described allows pressure system to be made up of top tray, variable cross-section by compression leg and lower tray；Described variable cross-section is by compression leg
Totally four, the vertically annular array distribution of the vertical central shaft of pallet, inclined relative to central shaft, its bottom is welded in down
On pallet, in the deep-slotted chip breaker of top insertion top tray；Described stress caution system is by stress caution gage and warning pointer structure
Into；Described stress caution gage is arranged on the length phase of the pop-up panel surface above a certain deep-slotted chip breaker, its length and deep-slotted chip breaker
Together, and with background color.
2. a kind of pressure-relieving achor bar pallet and application method with alarm function as claimed in claim 1, it is characterised in that institute
The variable cross-section stated is special high tensile reinforcement by compression leg, with certain camber and bottom shank diameter is slightly larger compared with top.
3. a kind of pressure-relieving achor bar pallet and application method with alarm function as claimed in claim 1, it is characterised in that institute
The deep-slotted chip breaker fluting shape of cross section that the pop-up tray bottom stated is provided with is semicircle.
4. a kind of pressure-relieving achor bar pallet and application method with alarm function as claimed in claim 1, it is characterised in that make
Following steps are specifically included with method：
（1）Installation is welded with the variable cross-section designed according to design requirement by the lower tray of compression leg, and its bottom surface is attached at the external table of country rock
Face；
（2）The big small circle ring for warning pointer is respectively fitted over anchor pole and a certain variable cross-section by compression leg top；
（3）Top tray with stress caution gage is installed, variable cross-section is respectively embedded into pop-up tray bottom by it by the top of compression leg
Deep-slotted chip breaker in, be placed in the initial position in deep-slotted chip breaker, make warning pointer point to stress caution gage initial position；
（4）Bolt-nut is anchored at anchor pole top, fixed top tray；
（5）In use, rockbolt stress, variable cross-section continues run-off the straight because being squeezed by compression leg and deformed, its top
Arcuately groove is slided, and then is interlocked warning pointer and rotated, and turns to bottom corresponding during a certain position of stress caution gage
Color is to represent the current stress of anchor pole, it can be determined that the safety stock situation of rockbolt stress；If variable cross-section is slided by compression leg
To the end of deep-slotted chip breaker, warning pointer can not be rotated further, and variable cross-section by compression leg flexural deformation it is larger when, warning anchor pole is held
The load received is already close to ultimate load.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427952.5A CN107035395A (en) | 2017-06-08 | 2017-06-08 | Pressure-relieving achor bar pallet and application method with alarm function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427952.5A CN107035395A (en) | 2017-06-08 | 2017-06-08 | Pressure-relieving achor bar pallet and application method with alarm function |
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Family
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372563A (en) * | 2018-12-22 | 2019-02-22 | 山东科技大学 | A kind of anti-HI high impact anchor rod pallet board monitoring anchor support force and its application method |
| CN109931086A (en) * | 2019-04-27 | 2019-06-25 | 代连朋 | A kind of accumulation of energy impact preventing anchor rod tray box |
| CN109990032A (en) * | 2019-02-20 | 2019-07-09 | 中国船舶重工集团公司第七一九研究所 | Energy absorption device and anti-whipping attaching means |
| CN112145211A (en) * | 2020-09-29 | 2020-12-29 | 华北水利水电大学 | Let clamping ring device with early warning function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372563A (en) * | 2018-12-22 | 2019-02-22 | 山东科技大学 | A kind of anti-HI high impact anchor rod pallet board monitoring anchor support force and its application method |
| CN109990032A (en) * | 2019-02-20 | 2019-07-09 | 中国船舶重工集团公司第七一九研究所 | Energy absorption device and anti-whipping attaching means |
| CN109931086A (en) * | 2019-04-27 | 2019-06-25 | 代连朋 | A kind of accumulation of energy impact preventing anchor rod tray box |
| CN112145211A (en) * | 2020-09-29 | 2020-12-29 | 华北水利水电大学 | Let clamping ring device with early warning function |
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Application publication date: 20170811 |