CN211874529U - Grouting anchor rod for tunnel construction - Google Patents
Grouting anchor rod for tunnel construction Download PDFInfo
- Publication number
- CN211874529U CN211874529U CN202020435815.3U CN202020435815U CN211874529U CN 211874529 U CN211874529 U CN 211874529U CN 202020435815 U CN202020435815 U CN 202020435815U CN 211874529 U CN211874529 U CN 211874529U
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- slip casting
- stock
- swing joint
- grouting anchor
- tunnel construction
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Abstract
The utility model discloses a tunnel construction slip casting stock, including last slip casting stock and lower slip casting stock, the surface swing joint of going up the slip casting stock has combined type adapter sleeve, combined type adapter sleeve's inside wall swing joint has lower slip casting stock, the surface swing joint of lower slip casting stock has the shutoff thick liquid stopper, the one end that combined type adapter sleeve was kept away from to last slip casting stock is through connecting piece fixedly connected with connecting rod, the surface of connecting rod has the connection card through moving part swing joint. This tunnel construction slip casting anchor through the setting of connecting card and connecting rod, will connect the card and impel in the stock mounting hole, under the effect of self gravity, the movable sleeve is in the same direction as the movable sleeve rebound for it opens to connect the card, gu in the stock mounting hole, prevents to take place to shift when the slip casting, still increases the device's anchoring force, conveniently hangs and establishes, avoids taking place to drop at the in-process of slip casting, the aversion phenomenon, guarantees the effect of slip casting reinforcing rock mass, improves the efficiency of construction.
Description
Technical Field
The utility model relates to a tunnel construction slip casting technical field specifically is tunnel construction slip casting anchor.
Background
In tunnel construction, anchor bolt support is widely adopted as advance support in tunnel construction due to the advantages of simple process, less material consumption and the like, the advance support of the tunnel is the support of the excavated rock stratum surface for the first time in the tunnel construction as the name suggests, also commonly called as 'primary support', the advance support belongs to the excavation support of the mountain or underground rock stratum surface in the primary support, most of the situations that the mountain or the underground rock stratum contains abundant underground water, and even spring gushing occurs.
When the existing anchor rod advanced support construction is carried out, water rich in gaps in underground water or rock strata freely flows out along the radial direction of the anchor rod, and part of water automatically flows in rock stratum collapse, however, when the anchor rod, particularly the self-propelled anchor rod, enters the rock stratum for the first time, the anchor rod inevitably contacts with a large amount of water in gaps in the underground water or the rock stratum directly; traditional radial stock of cavity is difficult for hanging and establishes, especially when carrying out tunnel arch crown construction, the cavity stock that inserts the stock hole often takes place to drop, the aversion phenomenon before the slip casting or the in-process of slip casting, has seriously influenced the effect that the rock mass was consolidated in the slip casting of cavity stock to lead to the efficiency of construction to reduce greatly.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a tunnel construction slip casting anchor has solved the problem of proposing in the above-mentioned background art.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the grouting anchor for tunnel construction comprises an upper grouting anchor rod and a lower grouting anchor rod, wherein a combined connecting sleeve is movably connected to the outer surface of the upper grouting anchor rod, a lower grouting anchor rod is movably connected to the inner side wall of the combined connecting sleeve, a grout plug is movably connected to the outer surface of the lower grouting anchor rod, a connecting rod is fixedly connected to one end, far away from the combined connecting sleeve, of the upper grouting anchor rod through a connecting piece, a connecting clamp is movably connected to the outer surface of the connecting rod through a moving piece, and grout overflow holes are formed in the outer surfaces of the upper grouting anchor rod and the lower grouting anchor rod.
Optionally, the surface swing joint of connecting rod has the movable sleeve, the surface of movable sleeve has connecting branch through pivot swing joint, the one end of connecting branch has the connection card through pivot swing joint.
Optionally, the inner side walls of the upper grouting anchor rod and the lower grouting anchor rod are provided with grouting channels.
Optionally, the outer surface of the lower grouting anchor rod is in threaded connection with a grout stop plug, the outer surface of the lower grouting anchor rod is movably connected with an anchor backing plate, and the outer surface of the lower grouting anchor rod is movably connected with a locking nut.
Optionally, the outer surface of the lower grouting anchor rod is sequentially penetrated with a locking nut, an anchor backing plate and a grout stop plug from bottom to top.
Optionally, one end of the slurry overflow hole is fixedly connected to the inner side wall of the slurry injection channel.
(III) advantageous effects
The utility model provides a tunnel construction slip casting anchor possesses following beneficial effect:
1. this tunnel construction slip casting anchor through the setting of connecting card and connecting rod, will connect the card and impel in the stock mounting hole, under the effect of self gravity, the movable sleeve is in the same direction as the movable sleeve rebound for it opens to connect the card, gu in the stock mounting hole, prevents to take place to shift when the slip casting, still increases the device's anchoring force, conveniently hangs and establishes, avoids taking place to drop at the in-process of slip casting, the aversion phenomenon, guarantees the effect of slip casting reinforcing rock mass, improves the efficiency of construction.
2. This tunnel construction slip casting anchor through the setting of excessive thick liquid hole and slip casting passageway, the mortar can wrap up the device full length, has avoided the danger of corrosion, reaches the purpose of long-term support, can increase the anchor power, and the slip casting passageway is radial to be processed has a plurality ofly and the communicating excessive thick liquid hole of slip casting passageway, increases the anchor power of stock and country rock, strengthens strutting the effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the cross-sectional structure of the device of the present invention.
In the figure: 1. grouting an anchor rod; 2. grouting anchor rods; 3. a combined connecting sleeve; 4. a grout stopping plug; 5. an anchor backing plate; 6. locking the nut; 7. grouting a channel; 8. plugging the slurry; 9. a connecting rod; 10. connecting the cards; 11. a movable sleeve; 12. connecting a support rod; 13. and (4) slurry overflow holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1 to 2, the present invention provides a technical solution: the grouting anchor for tunnel construction comprises an upper grouting anchor rod 1 and a lower grouting anchor rod 2, wherein the outer surface of the upper grouting anchor rod 1 is movably connected with a combined connecting sleeve 3, the inner side wall of the combined connecting sleeve 3 is movably connected with the lower grouting anchor rod 2, the outer surface of the lower grouting anchor rod 2 is in threaded connection with a grout stop plug 4, the outer surface of the lower grouting anchor rod 2 is movably connected with an anchor backing plate 5, the outer surface of the lower grouting anchor rod 2 is movably connected with a locking nut 6, and the locking nut 6, the anchor backing plate 5 and the grout stop plug 4 sequentially penetrate through the outer surface of the lower grouting anchor rod 2 from bottom to;
the outer surface of the lower grouting anchor rod 2 is movably connected with a grout plug 8, one end, far away from the combined connecting sleeve 3, of the upper grouting anchor rod 1 is fixedly connected with a connecting rod 9 through a connecting piece, the outer surface of the connecting rod 9 is movably connected with a connecting clamping piece 10 through a moving piece, the outer surface of the connecting rod 9 is movably connected with a movable sleeve 11, the outer surface of the movable sleeve 11 is movably connected with a connecting supporting rod 12 through a rotating shaft, and one end of the connecting supporting rod 12 is movably connected with the connecting clamping piece 10 through;
the connecting clamping piece 10 is pushed into the anchor rod mounting hole, the movable sleeve 11 moves upwards along with the movable sleeve 11 under the action of self gravity, so that the connecting clamping piece 10 is opened and fixed in the anchor rod mounting hole, the displacement during grouting is prevented, the anchoring force of the device is increased, the hanging is convenient, the phenomena of falling and displacement in the grouting process are avoided, the effect of grouting for reinforcing a rock body is ensured, and the construction efficiency is improved;
the outer surfaces of the upper grouting anchor rod 1 and the lower grouting anchor rod 2 are both provided with a grout overflow hole 13, the inner side walls of the upper grouting anchor rod 1 and the lower grouting anchor rod 2 are both provided with a grouting channel 7, and one end of the grout overflow hole 13 is fixedly connected to the inner side wall of the grouting channel 7;
mortar can wrap up the device overall length, has avoided the danger of corrosion, reaches the purpose of long-term support, can increase anchoring force, and slip casting passageway 7 radial processing has a plurality of and the communicating excessive thick liquid hole 13 of slip casting passageway, increases the anchoring force of stock and country rock, strengthens strutting the effect.
To sum up, when the grouting anchor for tunnel construction is used, mortar can wrap the device in the full length, so that the risk of corrosion is avoided, the purpose of long-term support is achieved, the anchoring force can be increased, a plurality of grout overflow holes 13 communicated with the grouting channel are radially processed in the grouting channel 7, the anchoring force of an anchor rod and surrounding rocks is increased, and the support effect is enhanced;
in will connecting card 10 propulsion stock mounting hole, under the effect of self gravity, the movable sleeve 11 is along with the 11 upwards removals of movable sleeve for connecting card 10 and opening, gu in the stock mounting hole, prevent to take place to shift when the slip casting, still increase the device's anchoring power, conveniently hang and establish, avoid taking place to drop, the aversion phenomenon at the in-process of slip casting, guarantee the effect of slip casting reinforcing rock mass, improve the efficiency of construction.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. Tunnel construction slip casting anchor, including last slip casting stock (1) and lower slip casting stock (2), its characterized in that: the outer surface swing joint of going up slip casting stock (1) has combination formula adapter sleeve (3), the inside wall swing joint of combination formula adapter sleeve (3) has down slip casting stock (2), the outer surface swing joint of slip casting stock (2) has stifled thick liquid stopper (8) down, the one end of going up slip casting stock (1) and keeping away from combination formula adapter sleeve (3) is through connecting piece fixedly connected with connecting rod (9), the surface of connecting rod (9) has connection card (10) through moving part swing joint, excessive thick liquid hole (13) have all been seted up to the surface of going up slip casting stock (1) and making a bet slip casting stock (2).
2. The tunnel construction grouting anchor of claim 1, wherein: the surface swing joint of connecting rod (9) has movable sleeve (11), the surface of movable sleeve (11) has connecting branch (12) through pivot swing joint, the one end of connecting branch (12) has connection card (10) through pivot swing joint.
3. The tunnel construction grouting anchor of claim 1, wherein: the inner side walls of the upper grouting anchor rod (1) and the lower grouting anchor rod (2) are provided with grouting channels (7).
4. The tunnel construction grouting anchor of claim 1, wherein: the outer surface of the lower grouting anchor rod (2) is in threaded connection with a grout stop plug (4), the outer surface of the lower grouting anchor rod (2) is movably connected with an anchor backing plate (5), and the outer surface of the lower grouting anchor rod (2) is movably connected with a locking nut (6).
5. The tunnel construction slip casting anchor of claim 4, wherein: and a locking nut (6), an anchor backing plate (5) and a grout stop plug (4) sequentially penetrate through the outer surface of the lower grouting anchor rod (2) from bottom to top.
6. The tunnel construction grouting anchor of claim 1, wherein: one end of the slurry overflow hole (13) is fixedly connected with the inner side wall of the slurry injection channel (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020435815.3U CN211874529U (en) | 2020-03-30 | 2020-03-30 | Grouting anchor rod for tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020435815.3U CN211874529U (en) | 2020-03-30 | 2020-03-30 | Grouting anchor rod for tunnel construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211874529U true CN211874529U (en) | 2020-11-06 |
Family
ID=73256056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020435815.3U Active CN211874529U (en) | 2020-03-30 | 2020-03-30 | Grouting anchor rod for tunnel construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211874529U (en) |
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2020
- 2020-03-30 CN CN202020435815.3U patent/CN211874529U/en active Active
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