CN112832835A - Device for quickly and accurately installing anchoring agent and using method thereof - Google Patents
Device for quickly and accurately installing anchoring agent and using method thereof Download PDFInfo
- Publication number
- CN112832835A CN112832835A CN202110047846.0A CN202110047846A CN112832835A CN 112832835 A CN112832835 A CN 112832835A CN 202110047846 A CN202110047846 A CN 202110047846A CN 112832835 A CN112832835 A CN 112832835A
- Authority
- CN
- China
- Prior art keywords
- main body
- anchoring agent
- body pipe
- rigid chain
- pipe
- Prior art date
- 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.)
- Pending
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 56
- 230000005641 tunneling Effects 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000003245 coal Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/028—Devices or accesories for injecting a grouting liquid in a bore-hole
Landscapes
- 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)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a device for quickly and accurately installing an anchoring agent and a using method thereof, the device comprises a main body pipe, a non-return plug capable of compactly blocking wind, an encapsulated anchoring agent and a spiral breaker are sequentially arranged in the inner cavity of the main body pipe from front to back, the anchoring agent and the non-return plug can slide in the inner cavity of the main body pipe, a plurality of strip-shaped grooves are annularly formed in the pipe wall of the main body pipe close to the back end face, the spiral breaker is fixed at the front end of the pre-cut groove, the maximum outer diameter of the spiral breaker is the same as the inner diameter of the main body pipe, a rigid chain is inserted into the front end of the main body pipe, one end of the rigid chain is tightly pressed on the non-return plug, and the other end of the rigid chain is in transmission connection with the output end of an external motor.
Description
Technical Field
The invention relates to the technical field of surrounding rock supporting, in particular to a device for quickly and accurately installing an anchoring agent and a using method thereof.
Background
Roadway excavation is a very important link in coal production. In recent years, the rapid development of coal mining technology and equipment has required a significant increase in the rate of roadway excavation to service a prepared coal face, and therefore roadway excavation equipment and technology have rapidly developed. The tunneling and anchoring combined unit and the hydraulic anchor rod drill carriage gradually replace a single anchor rod drill rig to become main mechanical equipment for tunnel tunneling and anchoring service, the equipment really realizes tunneling and anchoring synchronization, and the labor efficiency is improved to a great extent. In the tunneling process of the tunneling and anchoring combined unit, the total time of the whole process flow is occupied by supporting by 50% -60%, so that the supporting operation time in one cycle operation is reduced, and the tunneling efficiency in unit time of a roadway can be improved to a great extent.
In order to reduce the supporting operation time and improve the tunneling speed, a tubular supporting mode is provided in the field practice process to replace the traditional anchor rod supporting, namely common four-way pipes are adopted as supporting main bodies and are arranged in a drill hole, then an anchoring agent is arranged in the pipes, the anchoring agent is conveyed to the bottom of the hole by high-pressure water, and then the anchoring agent is squeezed by water pressure to enter gaps between the pipe walls and the hole walls so as to be anchored. Although this method reduces the supporting operation time, there are many problems: firstly, although the anchoring agent is fed into the bottom of a hole by using high-pressure water and is broken by extrusion, the anchoring agent cannot be fully stirred, so that the bonding force is low, and meanwhile, after a plastic package wrapping the anchoring agent is broken, gaps between the wall of the pipe and the wall of the hole are easily blocked, so that the anchoring agent cannot completely enter, the length of an anchoring section cannot be effectively controlled, and finally, the anchoring effect is poor, the anchoring force is low, and even the anchoring force is only about 20% of the designed anchoring force; secondly, the anchoring agent is sent to the bottom of the hole by high-pressure water, the water can participate in the stirring and condensation of the anchoring agent, and holes are easily formed in the anchoring layer while the gel time is prolonged, so that the anchoring compactness is poor, and finally the anchoring is unreliable. Therefore, a method for filling and stirring the anchoring agent is needed, which can not only exert the quick installation effect of the supporting mode, but also ensure that the anchoring agent can fully exert the function and reliably anchor.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide a device for quickly and accurately installing an anchoring agent and a using method thereof, which can solve the technical problems of uneven stirring, low filling rate and unreliable anchoring of the anchoring agent in a novel support of a quick excavation roadway.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a device for quickly and accurately installing an anchoring agent, which comprises a main body pipe, wherein a stopping plug capable of blocking wind compactly, an encapsulated anchoring agent and a spiral breaker are sequentially arranged in the inner cavity of the main body pipe from front to back, the anchoring agent and the stopping plug can slide in the inner cavity of the main body pipe, a plurality of elongated precutting grooves are formed in the pipe wall of the main body pipe close to the back end face in the circumferential direction, the spiral breaker is fixed at the front end of the precutting grooves, the maximum outer diameter of the spiral breaker is the same as the inner diameter of the main body pipe, a rigid chain is inserted into the front end of the main body pipe, one end of the rigid chain is abutted against the stopping plug, and the other end of the rigid chain is in transmission connection with the output end of an.
Preferably, the precutting grooves are arranged at intervals of 50-250 mm away from the rear end face of the main body pipe, and the width of the precutting grooves is 3-5 mm.
Preferably, the screw breaker is 250mm away from the rear end surface of the main tube and has a length of 200 mm.
Preferably, the retaining plug is a cylinder made of rubber materials and having a length of 50mm, and the diameter of the retaining plug is 1-2 mm larger than the inner diameter of the main pipe.
Preferably, the diameter of the maximum outer contour of the rigid chain is 1-2 mm smaller than that of the main pipe, so that the rigid chain entering the inner cavity of the main pipe is prevented from deflecting and bending.
Preferably, the main pipe is made of a thick-wall and high-strength seamless steel pipe.
Preferably, the anchoring agent is encapsulated by a plastic film.
The invention also provides a using method of the device for quickly and accurately installing the anchoring agent, which is characterized by comprising the following steps:
s1, constructing a mounting hole in surrounding rock of the rapid excavation roadway, then plugging the main body pipe into the mounting hole until the main body pipe touches the bottom, and enabling the front end of the main body pipe to extend out of the mounting hole;
s2, inserting the exposed section of the main pipe into a rigid chain, and pushing the anti-return plug and the anchoring agent to move towards the bottom of the hole by the rigid chain through the work of an external motor;
s3, cutting and crushing the packaging layer of the anchor agent after the anchor agent contacts the sharp cut at the front end of the spiral crusher, and simultaneously, under the spiral guiding and stirring effects of the spiral crusher, filling and bonding the anchor agent which is fully stirred and enters the hole between the mounting hole and the outer wall of the main body pipe from the precutting groove until the backstop plug pushes all the anchor agent to enter the spiral crusher to be completely crushed;
s4, operating the external motor reversely, and controlling the rigid chain to be pulled out reversely to be separated from the front end of the main pipe;
and S5, repeating the steps S1-S4, and operating the rest mounting holes in sequence.
The invention has the beneficial effects that: on one hand, the invention fully crushes and stirs the anchoring agent by arranging the spiral crusher, thereby solving the problem of low anchoring force caused by uneven filling of the anchoring agent of the novel supporting structure in the rapid excavation roadway; on the other hand, the anchoring agent is quickly fed into the bottom of the hole through the rigid chain, is quickly stirred under the action of pressure and enters a gap between the wall of the main body pipe and the wall of the mounting hole, the filling speed is high, the compactness is good, and the problems that the porosity of a final anchoring layer is high, the bonding effect is greatly influenced by water and the final anchoring force is low when the anchoring agent is pushed by high-pressure water are solved. In addition, the device has the advantages of reliable connection, understandable technical principle, simple operation method, favorable effects of improving construction speed and labor environment and strong practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an apparatus for quickly and accurately installing an anchoring agent according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a spiral breaker provided in an embodiment of the present invention;
fig. 3 is a sectional view of the main tube taken along line a in fig. 1.
Description of reference numerals:
1-mounting hole, 2-main body tube, 3-rigid chain, 4-backstop plug, 5-anchoring agent, 6-spiral breaker,
7-precutting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, a device for quickly and accurately installing an anchoring agent comprises a main pipe 2, wherein the main pipe 2 is made of a thick-walled and high-strength seamless steel pipe, the outer diameter of the main tube is 32mm, the inner diameter of the main tube is 26mm, the main tube 2 is provided with a stop plug 4 which can be tightly blocked from wind, an anchoring agent 5 packaged by a plastic film and a spiral breaker 6 from front to back in sequence in the inner cavity of the main tube 2, the anchoring agent 5 and the backstop plug 4 can slide in the inner cavity of the main body tube 2, a plurality of strip-shaped precutting grooves 7 are annularly arranged on the tube wall of the main body tube 2 close to the rear end face, the spiral breaker 6 is fixed at the front end of the precutting groove 7, the maximum outer diameter of the spiral breaker 6 is the same as the inner diameter of the main body pipe 2, the front end of the main body pipe 2 is also inserted with a rigid chain 3, one end of the rigid chain 3 is tightly propped against the backstop plug 4, and the other end of the rigid chain 3 is in transmission connection with the output end of an external motor.
The 7 precutting grooves are arranged at intervals of 4 at positions 50-250 mm away from the rear end face of the main body pipe 2, and the width of the precutting grooves 7 is 3-5 mm.
The spiral breaker 6 is 250mm away from the rear end surface of the main pipe 2, and the length is 200 mm.
The length of the retaining plug 4 is a cylinder made of rubber materials and having a length of 50mm, and the diameter of the retaining plug 4 is larger than the inner diameter of the main pipe 2 and ranges from 1 mm to 2 mm.
The diameter of the maximum outline of the rigid chain 3 is 1-2 mm smaller than that of the main body pipe 2, so that the rigid chain 3 entering the inner cavity of the main body pipe 2 is guaranteed not to deflect and bend.
The embodiment also provides a use method of the device for quickly and accurately installing the anchoring agent, which is characterized by comprising the following steps:
s1, constructing a mounting hole 1 with the depth of 3.5-3.6 m in surrounding rocks of a rapid excavation roadway, then plugging a main body pipe 2 into the mounting hole 1 until the main body pipe touches the bottom, and ensuring that the front end of the main body pipe 2 extends out of the mounting hole 1 by 0.1 m;
s2, inserting the exposed section of the main pipe 2 into the rigid chain 3, and pushing the anti-back plug 4 and the anchoring agent 5 to move towards the bottom of the hole by the rigid chain 3 through the work of an external motor;
s3, cutting and crushing the packaging layer of the anchoring agent 5 after the anchoring agent 5 contacts the sharp cut at the front end of the spiral crusher 6, and simultaneously, under the spiral guiding and stirring effects of the spiral crusher 6, the anchoring agent 5 is fully stirred and then enters the hole between the mounting hole 1 and the outer wall of the main pipe 2 for filling and bonding until the backstop plug 4 pushes all the anchoring agent 5 to enter the spiral crusher 6 and be completely crushed;
s4, operating the external motor reversely, and controlling the rigid chain 3 to be pulled out reversely to be separated from the front end of the main pipe 2;
and S5, repeating the steps S1-S4, and sequentially operating the rest mounting holes 1.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A device for quickly and accurately installing an anchoring agent is characterized by comprising a main body pipe (2), the inner cavity of the main body pipe (2) is sequentially provided with a retaining plug (4) which can be tightly blocked from wind, an encapsulated anchoring agent (5) and a spiral breaker (6) from front to back, the anchoring agent (5) and the backstop plug (4) can slide in the inner cavity of the main body pipe (2), a plurality of strip-shaped precutting grooves (7) are annularly formed on the pipe wall of the main body pipe (2) close to the rear end face, the spiral breaker (6) is fixed at the front end of the precutting groove (7), the maximum outer diameter of the spiral breaker (6) is the same as the inner diameter of the main body pipe (2), the front end of the main body pipe (2) is also inserted with a rigid chain (3), one end of the rigid chain (3) is tightly propped against the backstop plug (4), and the other end of the rigid chain (3) is in transmission connection with the output end of an external motor.
2. The device for rapidly and accurately installing the anchoring agent according to claim 2, wherein the pre-cut groove (7) is arranged at an equal interval of 50-250 mm from the rear end surface of the main body pipe (2), and the width of the pre-cut groove (7) is 3-5 mm.
3. A device for quick and accurate installation of anchoring agent according to claim 1, wherein the screw breaker (6) is 250mm from the rear end surface of the main tube (2) and has a length of 200 mm.
4. The device for rapidly and accurately installing the anchoring agent is characterized in that the retaining plug (4) is a cylinder made of rubber materials and having a length of 50mm, and the diameter of the retaining plug (4) is 1-2 mm larger than the inner diameter of the main pipe (2).
5. The device for installing the anchoring agent rapidly and accurately as claimed in claim 1, wherein the maximum outer profile diameter of the rigid chain (3) is 1-2 mm smaller than the diameter of the main body pipe (2), so as to ensure that the rigid chain (3) entering the inner cavity of the main body pipe (2) does not deflect and bend.
6. The device for rapidly and accurately installing the anchoring agent as claimed in claim 1, wherein the main tube (2) is made of a thick-walled, high-strength seamless steel tube.
7. A device for quick and accurate installation of anchoring agent according to claim 1, characterized in that the anchoring agent (5) is encapsulated with a plastic film.
8. The use method of the device for quickly and accurately installing the anchoring agent according to claim 1 is characterized by comprising the following steps:
s1, constructing a mounting hole (1) in surrounding rock of a rapid tunneling roadway, then plugging a main body pipe (2) into the mounting hole (1) until the main body pipe touches the bottom, and extending the front end of the main body pipe (2) out of the mounting hole (1);
s2, inserting the exposed section of the main pipe (2) into the rigid chain (3), and pushing the anti-return plug (4) and the anchoring agent (5) to move towards the bottom of the hole by the rigid chain (3) through the work of an external motor;
s3, cutting and crushing the packaging layer of the anchoring agent (5) after the anchoring agent (5) contacts the sharp cut at the front end of the spiral crusher (6), and simultaneously, under the spiral guiding and stirring effects of the spiral crusher (6), the anchoring agent (5) is fully stirred and enters the hole between the mounting hole (1) and the outer wall of the main body pipe (2) from the precutting groove (7) to be filled and bonded until the retaining plug (4) pushes all the anchoring agent (5) to enter the spiral crusher (6) to be completely crushed;
s4, operating an external motor reversely, and controlling the rigid chain (3) to be pulled out reversely to be separated from the front end of the main pipe (2);
and S5, repeating the steps S1-S4, and sequentially operating the rest mounting holes (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110047846.0A CN112832835A (en) | 2021-01-14 | 2021-01-14 | Device for quickly and accurately installing anchoring agent and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110047846.0A CN112832835A (en) | 2021-01-14 | 2021-01-14 | Device for quickly and accurately installing anchoring agent and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112832835A true CN112832835A (en) | 2021-05-25 |
Family
ID=75928135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110047846.0A Pending CN112832835A (en) | 2021-01-14 | 2021-01-14 | Device for quickly and accurately installing anchoring agent and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112832835A (en) |
-
2021
- 2021-01-14 CN CN202110047846.0A patent/CN112832835A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017301081B2 (en) | Reaming and self-rotating anchor rod and using method thereof | |
| CN104213921B (en) | Based on the freezing type coal uncovering method of hydraulic slotted liner technique | |
| CN104695971A (en) | Annular pipe-jacking construction method | |
| CN104213932A (en) | Outburst coal bed hydraulic phase change cracking cross-cut coal uncovering method | |
| CN113737788A (en) | Assembly type multi-purpose hollow grouting anchor rod with densely-distributed holes and bifurcations and construction method thereof | |
| CN103939143B (en) | The assay method of heading zone of fracture influence basin and device thereof | |
| CN114658471A (en) | Rock cross-cut coal uncovering grading outburst elimination method | |
| CN214273688U (en) | Chain type installation anchoring agent device | |
| CN214273687U (en) | High-pressure air stirring extrusion anchoring agent device | |
| CN112832835A (en) | Device for quickly and accurately installing anchoring agent and using method thereof | |
| CN117189148A (en) | TBM tunneling machine based on filling type supporting shoe adjustment | |
| KR101437443B1 (en) | Pressure apparatus for boring tunnel | |
| CN116677436A (en) | Porous yielding anchor rod device capable of grouting in segmented mode and application method thereof | |
| CN210033428U (en) | Hydraulic pressure spalling device | |
| CN112196498B (en) | Cross-layer drilling separated type whole-course gas extraction hole sealing device | |
| CN110779407B (en) | Hole plugging device and method for high-pressure gas rock breaking of tunnel | |
| CN109098744A (en) | A kind of anchor pole squash type Anchor Agent connecting pipe and application method | |
| CN112610255B (en) | Tunnel construction method for penetrating through weak and broken surrounding rock | |
| CN214577113U (en) | Earthquake recoverable function anchor cable | |
| CN112727515A (en) | Rapid mounting, stirring and filling integrated device for anchoring agent and use method thereof | |
| KR20150035122A (en) | Drill Root Pile And Construction Method Thereof | |
| CN210397919U (en) | Soil crushing device for jacking pipe | |
| CN111734308B (en) | Forward hole expanding method for directional drilling penetration | |
| CN218347395U (en) | Pass through rich water fault broken zone tunnel reinforcement water shutoff with leading curtain slip casting system | |
| CN219119212U (en) | Hole sealing device for gas drainage down-hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |