CN205876365U - A multiple spot lets presses slip casting stock for deep subregion roadway support that breaks - Google Patents
A multiple spot lets presses slip casting stock for deep subregion roadway support that breaks Download PDFInfo
- Publication number
- CN205876365U CN205876365U CN201620904936.1U CN201620904936U CN205876365U CN 205876365 U CN205876365 U CN 205876365U CN 201620904936 U CN201620904936 U CN 201620904936U CN 205876365 U CN205876365 U CN 205876365U
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- China
- Prior art keywords
- resistance
- constant
- slip casting
- depression bar
- pressure grouting
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Abstract
The utility model discloses a multiple spot lets presses slip casting stock for deep subregion roadway support that breaks. It includes the bower anchor pole body of rod, the vice stock body of rod and the stern anchor pole body of rod, let and press slip casting connecting piece, constant -resistance let depression bar, scalable defeated thick liquid hose and slip casting indicator, bower anchor pole body of rod one end in proper order with installing anchor backing plate, tray and fastening nut fastening connection, the other end of the bower anchor pole body of rod, let press slip casting connecting piece, constant -resistance let the depression bar, let press slip casting connecting piece, the vice stock body of rod, let press slip casting connecting piece, constant -resistance let the depression bar, let and press the slip casting connecting piece and the stern anchor pole body of rod to loop through threaded connection in an organic whole, scalable defeated thick liquid hose is arranged in letting presses slip casting connecting piece hydrophthalmia and constant -resistance let hydrophthalmia connection in the depression bar. The utility model discloses can carry out independence, multiple spot constant -resistance to the country rock that the deep tunnel has a subregion breakdown phenomenon and let voltage -controlled system, be difficult to appear the phenomenon that stress concentration broke the stock, break the tunnel to the subregion and have the fine effect of strutting.
Description
Technical field
This utility model relates to a kind of multiple spot by pressure grouting anchor pole, ruptures tunnel particularly to one for deep subregion and props up
The multiple spot protected is by pressure grouting anchor pole.
Background technology
Along with day by day reducing and the gradually expansion of human living space of superficial part resource, many undergrounds in building and planning
Engineering constantly moves towards deep；The underground passage of mining mineral resource, the subterranean tunnel of transport development and water power are opened the most both at home and abroad
The underground chamber etc. sent out all has reached the degree of depth on km.For the underground engineering of deep, colliery, along with adopting deep increase, ground
Stress is increasing, and roadway surrounding rock is in heavily stressed, hyperosmosis, high temperature and by under the mal-condition of mining influence, causes deep
Destruction and the deformation of cavern of portion are the most increasingly severe, and it is existing to occur in that multiple rupture zone and complete section subregion gradually alternately ruptures
As.
How to control to be faced with supporting deep laneway surrounding rock always deep coalmine engineering construction and roadway support design
Problem, anchor pole is widely used in various deep-well tunnel as the maximally effective supporting tool of underground engineering, and practice also demonstrates that it
Control to roadway surrounding rock serves positive effect.But deep subregion rupture event is complicated, and use the widest loosening at present
Circle support theory design is only divided into plastic zone and elastic region two parts surrounding rock failure, if using Supporting Theory of Broken Rock Zone to carry out propping up
Protecting, design of its support and parameter selection can change a lot in practice, it is difficult to reach to safeguard the effect that roadway surrounding rock is stable.
At present, rupturing tunnel for subregion mainly uses the mode of composite support (such as anchor and spray net+slip casting, shotcrete rete cord, anchor
Spray rete cord+U-shaped steel/steel pipe concrete, pressure relief vent+combined supporting etc.).Above composite support mode is both needed to take the side of suspension roof support
Formula, wherein grouted anchor bar is also constantly used, but current anchor pole ruptures at subregion and also has many problems when tunnel uses:
1, for general grouted anchor bar, as this grouted anchor bar of patent CN201520411862.3 can carry out the multiple pressure that allows
But cannot be carried out subregion and allow pressure, be not suitable for subregion and rupture tunnel；2, country rock subregion ruptures and has stronger time effect, it is desirable to
Opportunity for slip casting must be got hold of, and too early or the most unfavorable, but current grouted anchor bar is all difficult to accurately obtain
The best period of surrounding rock supporting；3, the scope that deep laneway surrounding rock subregion ruptures is the widest, and general bolt anchorage scope is difficult
To reach to anchor requirement.4, slip casting many employings combination of long drives and drop shots Grouting Pipe or the hollow segmentation ruptured now for subregion is spirally noted
Slurry anchor pole, but the boring that combination of long drives and drop shots Grouting Pipe needs is more, and the spiral grouted anchor bar of hollow segmentation cannot be concrete according to scene
Situation adjusts the position of injected hole.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides that a kind of to rupture roadway support for deep subregion many
Point allows pressure grouting anchor pole.
The technical scheme in the invention for solving the above technical problem is: one ruptures tunnel for deep subregion and props up
The multiple spot protected by pressure grouting anchor pole, including Bower Anchor club shaft, secondary anchor rod body and stern anchor club shaft, allows pressure grouting connector, perseverance
Resistance allows depression bar, scalable defeated slurry flexible pipe and slip casting indicator；Described Bower Anchor club shaft one end successively with install roof bolt plate, torr
Dish and clamp nut are fastenedly connected, the other end of Bower Anchor club shaft, allow pressure grouting connector, constant-resistance allow depression bar, allow pressure grouting even
Fitting, secondary anchor rod body, allow pressure grouting connector, constant-resistance allow depression bar, allow pressure grouting connector and stern anchor club shaft lead to successively
Crossing and be threadedly connected to one, scalable defeated slurry flexible pipe is used for allowing hydrophthalmia and constant-resistance in pressure grouting connector allow in depression bar hydrophthalmia even
Connecing, allow pressure grouting connector and constant-resistance allow in the middle of depression bar and be also equipped with displacement transducer, signal is passed by displacement transducer by wire
It is passed to slip casting indicator.
Above-mentioned rupturing the multiple spot of roadway support by pressure grouting anchor pole for deep subregion, the described pressure grouting that allows connects
Part includes annular protective case, hollow pipe, outer snap ring, and described annular protective case is fixed on hollow pipe, and there is a pair pipe seam its one end；Empty
Heart pipe side is the end of thread, is used for being connected with anchor pole end, and there is a pair pipe seam hollow pipe middle part, and pipe seam extends to annular
Inside protective case, just agree with annular protective case pipe seam；Hollow pipe one intrasegmental part is corrugated inner surface, allows depression bar ripple with constant-resistance
Shape surface matches.
Above-mentioned rupturing the multiple spot of roadway support by pressure grouting anchor pole for deep subregion, described constant-resistance allows depression bar two
End all has corrugated outer surface, and middle part is slip casting section, has several injected holes, and described injected hole and described constant-resistance allow pressure
The internal hydrophthalmia of bar communicates, and described hydrophthalmia is injection slurry circulation duct；Described constant-resistance allows depression bar have undulatory two ends respectively
It is placed in two hollow pipes；Described constant-resistance allows depression bar both sides outermost end be smooth cylindrical surface, and smooth cylindrical surface has a pair fastener,
Its width is smaller compared with hollow pipe pipe seam width, the annular protective case that height is slightly below enclosed within hollow pipe higher than hollow pipe outer surface.
Compared with prior art, the beneficial effects of the utility model are:
The country rock 1, can with subregion fracture phenomena carries out independence, multiple spot allows voltage-controlled system, and allows the pressure be
Constant-resistance allows pressure, is difficult to as spring etc. allows pressure original paper easily occur that stress is concentrated breaks the phenomenon of anchor pole, has well adapted to subregion
Rupture the feature of roadway deformation；
2, country rock subregion ruptures and has stronger time effect, it is desirable to the opportunity for slip casting must be got hold of, too early
Or the most unfavorable, each subregion that ruptures can effectively be fitted by the anchor pole situation of being stretched utilizing displacement transducer to provide
Time grouting and reinforcing.
3, the scope that deep laneway surrounding rock subregion ruptures is the widest, utilizes the multistage pair body of rod and allows pressure grouting connector
Combination can freely adjust the length of grouted anchor bar, and easy for installation, is used as in the area of tunnel narrow scope.
4, verifying in the case of subregion ruptures scope, the secondary body of rod of different length can chosen and allow pressure grouting connector
Combination, it is possible to accurately rupture zone is carried out slip casting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 be in this utility model the body of rod with allow pressure grouting connector connecting portion profile.
Fig. 3 is the structure chart allowing in this utility model and pressing connector.
Fig. 4 is the A-A profile of Fig. 3 in this utility model.
Fig. 5 is that in this utility model, constant-resistance allows depression bar schematic diagram.
Fig. 6 is the B-B profile of Fig. 5 in utility model.
Fig. 7 is that this utility model constant-resistance allows depression bar and allows the sectional view of pressure grouting connector junction.
Detailed description of the invention
Below in conjunction with the accompanying drawings an embodiment of the present utility model is further described:
The multiple spot of roadway support is ruptured by pressure grouting anchor pole for deep subregion, including anchor rod body as it is shown in figure 1, a kind of
1, pressure grouting connector 2, constant-resistance is allowed to allow depression bar 3, scalable defeated slurry flexible pipe 4 and slip casting indicator 5.
As shown in Figure 1, 2, anchor rod body 1 includes Bower Anchor club shaft 14, secondary anchor rod body 15 and stern anchor club shaft 16, Bower Anchor
Club shaft 14 one end is used for installing roof bolt plate 13, pallet 12 and clamp nut 11 etc., the other end can with allow pressure grouting be connected
Part 2 is threaded connection；Secondary anchor rod body 15 can have several, two ends all by female thread with allow pressure grouting connector 2 company
Connect；There is female thread stern anchor club shaft 16 only one end and allows pressure grouting connector 2 be connected.
As shown in Figure 3,4, pressure grouting connector 2 is allowed to include annular protective case 21, hollow pipe 26, outer snap ring 22.Wherein wild card
Ring 22 is used for blocking annular protective case 21 and moves the most laterally, and annular protective case 21 is fixed on hollow pipe 26, and its one end has a pair
Pipe seam 23；Hollow pipe 26 side is the end of thread 25, is used for being connected with anchor pole end, and there is a pair pipe seam hollow pipe 26 middle part, pipe
It is internal that seam extends to annular protective case 21, just agrees with annular protective case pipe seam 23；Hollow pipe 26 1 intrasegmental part is corrugated
Inner surface 24, can allow depression bar 3 corrugated surface 33 match with constant-resistance.
As shown in Figure 5,6, constant-resistance allows depression bar 3 two ends all have corrugated outer surface 33, and annular protective case 21 is provided that bigger
Radial pressure, when surrouding rock deformation, hollow pipe 26 and constant-resistance allow depression bar 3 produce Relative sliding and to be gradually increased frictional resistance, phase
Displacement exceedes stress unloading after one or several wave band, and annular protective case 21 resilience also remains certain radial pressure,
So that anchor pole periodically increases frictional resistance to realize allowing pressure effect.Middle part is slip casting section, has several injected holes
32, injected hole 32 allows the internal hydrophthalmia 34 of depression bar 3 communicate with constant-resistance, and wherein hydrophthalmia 34 is injection slurry circulation duct；Constant-resistance allows depression bar 3
It is used for connecting two and allows pressure grouting connector 2, wherein there are undulatory two ends and be respectively sleeved in two hollow pipes 26；Constant-resistance allows depression bar
3 both sides outermost end are smooth cylindrical surface, and smooth cylindrical surface has a pair fastener 31, and its width relatively hollow pipe pipe seam 23 width is slightly
Little, that height is slightly below enclosed within hollow pipe 26 higher than hollow pipe 26 outer surface annular protective case 21.
As it is shown in fig. 7, scalable defeated slurry flexible pipe 4 is used for allowing hydrophthalmia 35 and constant-resistance in pressure grouting connector 2 allow water in depression bar 3
The connection of eye 34, connected mode is screw thread 41(or other modes such as bayonet lock etc.), scalable defeated slurry flexible pipe 4 is folding, can
To allow the outer shifting of depression bar 3 extend along with constant-resistance.Particularly, pressure grouting connector 2 and constant-resistance is being allowed to allow depression bar 3 centre be also equipped with
Displacement transducer 42, displacement transducer 42 is transferred signals in slip casting indicator 5 by wire.
Signal data on displacement transducer 42 can be done relevant conversion by slip casting indicator 5, when allowing pressure grouting connector 2
When being stretched to the length set, corresponding indicator lantern festival flicker, now can judge whether to note according to practical situation
Slurry processes.
Using method of the present utility model is as follows:
Using method one:
First getting out in roadway surrounding rock and allow the consistent boring of pressure grouting anchor pole external diameter, cleaning boring, then according to setting
Meter requirement assembles and allows pressure grouting anchor pole, sends in boring by it, carries out full length fastening, allowing together with multireel Anchor Agent powder stick
Pressure grouting anchor pole exposed junction installs anchor rod pallet board 12 and backing plate 13, clamp nut 11 of screwing on, and requires to apply pretension according to design
Power, draws the wire connecting each displacement transducer 42 and is connected in slip casting indicator 5；
Owing to having carried out full length fastening, when country rock part starts to occur subregion failure by rupture, Anchor Agent can break therewith
Splitting, now rupture zone can expand deformation, causes the allow pressure grouting connector 2 nearest from rupture zone be stretched, owing to allowing pressure
Grouted anchor bar is that constant-resistance allows pressure, is possible to prevent roadway surrounding rock generation bump, when the distance drawn high reaches the value set, permanent
The injected hole 32 of depression bar 3 mid portion can be exposed in resistance, and the lamp of corresponding slip casting indicator 5 also can flash, and now can select
Select connection grouting equipment and carry out grouting operation.
Using method two:
First getting out in roadway surrounding rock and allow the consistent boring of pressure grouting anchor pole external diameter, cleaning boring, then according to existing
The roadway surrounding rock rupture zone spied out, field assembles and allows pressure grouting anchor pole being exposed by injected hole 32, and grouted anchor bar is sent into boring
In, connect grouting equipment and carry out grouting operation, after injection slurry condenses, allowing pressure grouting anchor pole exposed junction, anchor rod pallet board 12 is installed
With backing plate 13, clamp nut 11 of screwing on, and according to design require apply pretightning force, complete the operation of subregion slip casting.
Above instantiation is only a kind of preferably example of this utility model, but not this utility model content is whole,
All equivalents done in this utility model scope, all will be within protection domain of the present utility model.
Claims (3)
1. one kind ruptures the multiple spot of roadway support by pressure grouting anchor pole for deep subregion, it is characterised in that: include Bower Anchor bar bar
Body, secondary anchor rod body and stern anchor club shaft, pressure grouting connector, constant-resistance is allowed to allow depression bar, scalable defeated slurry flexible pipe and slip casting instruction
Device；Described Bower Anchor club shaft one end is fastenedly connected with installation roof bolt plate, pallet and clamp nut successively, Bower Anchor club shaft
The other end, allow pressure grouting connector, constant-resistance allow depression bar, allow pressure grouting connector, secondary anchor rod body, allow pressure grouting connector, perseverance
Resistance allow depression bar, allow pressure grouting connector and stern anchor club shaft pass sequentially through be threadedly connected to one, scalable defeated slurry flexible pipe use
In allowing hydrophthalmia and constant-resistance in pressure grouting connector allow hydrophthalmia in depression bar connect, pressure grouting connector and constant-resistance is allowed to allow in the middle of depression bar also
Equipped with displacement transducer, displacement transducer transfers signals to slip casting indicator by wire.
The most according to claim 1 rupturing the multiple spot of roadway support by pressure grouting anchor pole for deep subregion, its feature exists
In: described allow pressure grouting connector include annular protective case, hollow pipe, outer snap ring, described annular protective case are fixed on hollow pipe,
And there is a pair pipe seam its one end；Hollow pipe side is the end of thread, is used for being connected with anchor pole end, and there is a pair pipe hollow pipe middle part
Seam, pipe seam extends to inside annular protective case, just agrees with annular protective case pipe seam；In hollow pipe one intrasegmental part is corrugated
Surface, allows depression bar corrugated surface match with constant-resistance.
The most according to claim 1 rupturing the multiple spot of roadway support by pressure grouting anchor pole for deep subregion, its feature exists
In: described constant-resistance allows depression bar two ends all have corrugated outer surface, and middle part is slip casting section, has several injected holes, institute
State injected hole allows the internal hydrophthalmia of depression bar communicate with described constant-resistance, and described hydrophthalmia is injection slurry circulation duct；Described constant-resistance allows pressure
Bar has undulatory two ends and is respectively sleeved in two hollow pipes；Described constant-resistance allows depression bar both sides outermost end be smooth cylindrical surface,
Smooth cylindrical surface has a pair fastener, and its width is smaller compared with hollow pipe pipe seam width, and height is higher than hollow pipe outer surface slightly below
The annular protective case being enclosed within hollow pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904936.1U CN205876365U (en) | 2016-08-19 | 2016-08-19 | A multiple spot lets presses slip casting stock for deep subregion roadway support that breaks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904936.1U CN205876365U (en) | 2016-08-19 | 2016-08-19 | A multiple spot lets presses slip casting stock for deep subregion roadway support that breaks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205876365U true CN205876365U (en) | 2017-01-11 |
Family
ID=57705114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620904936.1U Expired - Fee Related CN205876365U (en) | 2016-08-19 | 2016-08-19 | A multiple spot lets presses slip casting stock for deep subregion roadway support that breaks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205876365U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089273A (en) * | 2016-08-19 | 2016-11-09 | 湖南科技大学 | A kind of rupture the multiple spot of roadway support by pressure grouting anchor pole for deep subregion |
| CN108049402A (en) * | 2018-01-25 | 2018-05-18 | 西南科技大学 | Prestressed anchor |
| CN108087004A (en) * | 2017-12-29 | 2018-05-29 | 青岛林川工程技术咨询有限公司 | A kind of device of the first branch steel arch-shelf tension stability of raising |
| CN110454230A (en) * | 2019-08-30 | 2019-11-15 | 武汉科技大学 | A kind of real-time monitoring and prior-warning device of mine working roof delamination |
-
2016
- 2016-08-19 CN CN201620904936.1U patent/CN205876365U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089273A (en) * | 2016-08-19 | 2016-11-09 | 湖南科技大学 | A kind of rupture the multiple spot of roadway support by pressure grouting anchor pole for deep subregion |
| CN108087004A (en) * | 2017-12-29 | 2018-05-29 | 青岛林川工程技术咨询有限公司 | A kind of device of the first branch steel arch-shelf tension stability of raising |
| CN108049402A (en) * | 2018-01-25 | 2018-05-18 | 西南科技大学 | Prestressed anchor |
| CN108049402B (en) * | 2018-01-25 | 2023-06-16 | 西南科技大学 | Prestressed anchor rod |
| CN110454230A (en) * | 2019-08-30 | 2019-11-15 | 武汉科技大学 | A kind of real-time monitoring and prior-warning device of mine working roof delamination |
| CN110454230B (en) * | 2019-08-30 | 2024-02-23 | 武汉科技大学 | Real-time monitoring and early warning device for mine roadway roof separation layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20190819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |