CN219034787U - Supporting backing plate of regional stock is fallen to tunnel surrounding rock piece - Google Patents
Supporting backing plate of regional stock is fallen to tunnel surrounding rock piece Download PDFInfo
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- CN219034787U CN219034787U CN202320048107.8U CN202320048107U CN219034787U CN 219034787 U CN219034787 U CN 219034787U CN 202320048107 U CN202320048107 U CN 202320048107U CN 219034787 U CN219034787 U CN 219034787U
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- backing plate
- surrounding rock
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- rock
- anchor rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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Abstract
The utility model discloses a supporting backing plate of an anchor rod in a falling area of a roadway surrounding rock slice, which comprises surrounding rock and a supporting unit arranged on the outer side of the surrounding rock, wherein a protecting unit is poured and connected in an inner cavity of the supporting unit, and two sides of the protecting unit extend to the outer side through the backing plate to be connected with a surrounding rock protecting net.
Description
Technical Field
The utility model relates to the technical field of coal mine roadway engineering, in particular to a supporting backing plate for an anchor rod in a falling area of a roadway surrounding rock slice.
Background
The coal mine in China mainly adopts underground mining, and a large number of tunneling roadways are required to be constructed in the process of preparing the underground coal mine in a stope. The smoothness and stability of the roadway are necessary conditions for guaranteeing the safety and high-efficiency production of the coal mine, and meanwhile, the anchor bolt support technology serving as one of the roadway surrounding rock control technologies is widely popularized. The condition that coal rock mass flakes fall frequently occurs in the installation process of the anchor rod, so that the anchor rod is exposed to overlength and failure, and is more serious when coal roadways, non-hard rocks and lithology are easy to break.
In the prior art, when the anchor rod in the falling area of the surrounding rock slice fails, the metal backing plate, the concrete guard plate and other materials with larger rigidity are required to be added or the anchor rod is required to be timely and additionally beaten nearby the failed anchor rod, but the cost of the metal backing plate is relatively high, especially when the depth of the falling area of the slice is large, the use amount of the metal backing plate can be increased, the cost of supporting materials is greatly increased, and when the anchor rod fails, the condition that the broken backing plate at the tail of the anchor rod falls to hurt people occurs, thereby threatening the safety condition of workers.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: how to realize preventing that the backing plate from dropping when the stock afterbody breaks and hurting the condition emergence of people to improve the security of this application.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a supporting backing plate of regional stock falls in tunnel surrounding rock piece, includes the surrounding rock to and install the support unit in the surrounding rock outside, the inner chamber of support unit is pour and is connected with the protection unit, the both sides of protection unit all run through the backing plate and extend to the outside and be connected with the surrounding rock protection network.
According to the support device, the support unit is fixedly installed on the outer side of the surrounding rock to support, the protection unit is poured and connected into the inner cavity of the support unit, the two sides of the protection unit extend out of the inner cavity of the support unit, the extending parts of the protection unit are connected with the surrounding rock protection net, and therefore when the tail of the anchor rod is broken, the situation that the base plate falls down to hurt people is effectively prevented, and the safety of the support device is improved.
Preferably: the supporting unit comprises a base plate, the base plate is formed by processing on-site guniting rebound materials, and the base plate is fixedly arranged on the outer side of surrounding rock.
The advantages are that: the problem of the special material for the concrete guard board is solved on the premise of not increasing the cost.
Preferably: the drilling is offered in the outside of country rock, the inner chamber of backing plate is equipped with the stock, the through-hole has been offered with the corresponding position of drilling on the backing plate, just the diameter size of through-hole is greater than the diameter size of anchor rod, the stock runs through the through-hole towards the one end of country rock and extends to the inner chamber of drilling and be connected with the country rock.
The advantages are that: the roadway side part or the top plate is supported.
Preferably: one side of backing plate away from the country rock is equipped with the layer board, the one end of stock orientation country rock runs through layer board, through-hole in proper order and extends to the inner chamber of drilling and be connected with the country rock through the anchor, just the outside spiro union of the other end of stock has the nut, the one end and the layer board looks butt of nut.
The advantages are that: the anchor rod is pre-tightened, so that the problems that the anchor rod in the falling area cannot be pre-tightened, fails or is exposed too long are solved.
Preferably: the outside of stock is located cup joints the ball pad between layer board, the nut, the one end of stock orientation country rock runs through ball pad, layer board, through-hole in proper order and extends to the inner chamber of drilling and be connected with the country rock through the anchor, just the one end and the ball pad looks butt of nut.
The advantages are that: the stress state of the anchor rod is improved, and the supporting effect is improved.
Preferably: the backing plate comprises reinforcing ribs, each reinforcing rib comprises a plurality of transverse ribs and longitudinal ribs, and the transverse ribs and the longitudinal ribs are welded relatively to form a 'well' -shaped inner cavity fixedly mounted on the backing plate.
The advantages are that: the rigidity of the backing plate is effectively improved.
Preferably: the protection unit comprises a fixing rod, two sides of the fixing rod penetrate through the base plate to extend to the outer side, two sides of the fixing rod are connected with connecting holes, and the protection unit is connected with the surrounding rock protection net through the two connecting holes.
The advantages are that: the condition that people are injured when the backing plate falls when the tail of the anchor rod is broken is prevented.
Compared with the prior art, the utility model has the beneficial effects that: according to the support device, the support unit is fixedly installed on the outer side of the surrounding rock to support, the protection unit is poured and connected to the inner cavity of the support unit, and the two sides of the fixing rod extend out of the inner cavity of the support unit, so that the connecting holes extending out of the fixing rod are connected with the surrounding rock protection net, the fact that the backing plate can be connected with the surrounding rock protection net through the connecting holes when the tail of the anchor rod is broken is achieved, the situation that the backing plate falls down to hurt people is effectively prevented, and therefore safety of the support device is improved;
the backing plate of this application is formed through adopting the processing of scene guniting resilience material, has effectually realized having solved the problem of the special material of aforementioned concrete backplate under the prerequisite of not increasing the cost.
Drawings
FIG. 1 is a schematic cross-sectional view of an overall structure of a backing plate matched with an anchor rod in a falling area of a surrounding rock slice of a roadway in an embodiment of the utility model;
FIG. 2 is a schematic diagram of the overall structure of a supporting backing plate of an anchor rod in a falling area of a surrounding rock slice of a roadway in an embodiment of the utility model;
FIG. 3 is a schematic diagram of a supporting backing plate reinforcing rib of an anchor rod in a falling area of a surrounding rock slice of a roadway in an embodiment of the utility model;
fig. 4 is a schematic structural view of a supporting backing plate protection unit of an anchor rod in a falling area of a surrounding rock slice of a roadway in an embodiment of the utility model.
In the figure: 1-surrounding rock; 11-drilling; 2-supporting units; 21-backing plate; 22-through holes; 23-a protection unit; 231-a fixed rod; 232-connecting holes; 24-reinforcing ribs; 241-transverse bars; 242-longitudinal ribs; 3-supporting plates; 4-anchor rod; 5-ball pad; 6-nut.
Detailed Description
In order to facilitate the understanding of the technical scheme of the present utility model by those skilled in the art, the technical scheme of the present utility model will be further described with reference to the accompanying drawings.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1, the embodiment discloses a supporting backing plate of an anchor rod in a falling area of a roadway surrounding rock slice, which comprises surrounding rock 1, supporting units 2, supporting plates 3, anchor rods 4, ball mats 5 and nuts 6.
Referring to fig. 1-4, the surrounding rock 1 is a roadway wall part or a roof, a plurality of drill holes 11 are formed in the surrounding rock 1 through an anchor rod drilling machine, supporting units 2 are fixedly arranged at positions, corresponding to the drill holes 11, on the outer side of the surrounding rock 1, of the supporting units 2, each supporting unit comprises a base plate 21, through holes 22, a protection unit 23 and reinforcing ribs 24, the base plates 21 are rectangular blocks formed by processing on-site guniting rebound materials, and the base plates 21 are provided with through holes 22 penetrating through a circular structure of an axle center;
in this embodiment, the anchoring agent is injected through the inner cavity of the borehole 11, and the anchor rod is anchored and fixed with the surrounding rock 1 through the through hole 22.
The strengthening rib 24 is placed in the middle of the inner chamber of backing plate 21 and is pour fixedly through the coagulating material, and the strengthening rib 24 includes two horizontal muscle 241, indulge muscle 242, and horizontal muscle 241, indulge muscle 242 and be hot rolling plain round steel and make, and horizontal muscle 241 overlap joint is at the upper end of indulging muscle 242, welds fixedly through the mode of resistance spot welding, forms a "well" style of calligraphy structure, the effectual rigidity that has improved backing plate 21.
In this embodiment, the materials and mesh sizes of the reinforcing ribs 24 are the same as those of the reinforcing mesh used in the field rock roadway, so that one reinforcing mesh for the rock roadway can directly intercept a plurality of reinforcing ribs 24, and the material taking is convenient without separate processing.
The protection unit 23 is placed in strengthening rib 24 upper end and is pour fixedly through the coagulating material, and the protection unit 23 includes dead lever 231, and the inner chamber that the both sides of dead lever 231 run through backing plate 21 extends to the outside, and the both sides end of dead lever 231 all is connected with connecting hole 232, and backing plate 21 is connected with wall rock 1 group portion or roof protection net through connecting hole 232, when the stock afterbody breaks, effectually prevented that the backing plate from dropping the condition emergence of injury people to the security of this application has been improved.
In this embodiment, the fixing rod 231 and the connecting hole 232 are made of hot-rolled round steel, and are the same as the reinforcing mesh used in the field rock roadway, so that the material is taken conveniently, and the separate processing is not needed.
Referring to fig. 1, the supporting plate 3 is placed on one side of the backing plate 21 far away from the surrounding rock 1, the anchor rod 4 passes through the inner cavity of the through hole 22 to fix the backing plate, the nut 6 is in threaded connection with the outer side of one end of the anchor rod 4 far away from the supporting plate 3, the backing plate 3 is screwed by screwing the nut 6, a pretightening force is applied to the direction facing the supporting plate 3, and initial active support can be effectively applied to the surrounding rock.
In this embodiment, the exposed length of the anchor rod 4 can be reduced and the construction quality can be improved.
In this embodiment, the diameter of the anchor rod 4 is smaller than that of the through hole 22, and when the anchor rod 4 penetrates into the cavity of the through hole 22, the anchoring agent in the cavity of the drill hole 11 can be stirred so as to facilitate rapid adhesion.
The working principle of the embodiment is as follows: staff forms backing plate 21 through making a square check in utilizing the guniting rebound material to pour to square template, places strengthening rib 24 when pouring to half design thickness, then places protection unit 23 and continue to pour to design thickness back maintenance shaping to make the both sides of dead lever 231 run through backing plate 21 and extend to the outside and be connected with wall portion or roof of country rock 1 through connecting hole 232, this application is when having solved the unable pretension of regional stock of falling, inefficacy or exposing the problem of overlength, has realized that backing plate 21 still can be connected with country rock 1 protection network through connecting hole 232 when the stock afterbody breaks, effectually prevented that the backing plate from dropping the condition emergence of injury people, thereby the security of this application has been improved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The above-described embodiments merely represent embodiments of the utility model, the scope of the utility model is not limited to the above-described embodiments, and it is obvious to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (7)
1. The utility model provides a regional stock supporting backing plate falls in tunnel surrounding rock piece, includes surrounding rock (1), its characterized in that: and the supporting unit (2) is arranged on the outer side of the surrounding rock (1), a protection unit (23) is poured and connected in an inner cavity of the supporting unit (2), and both sides of the protection unit (23) penetrate through the base plate (21) and extend to the outer side to be connected with a surrounding rock (1) protective net.
2. The roadway surrounding rock piece falling area anchor rod matched backing plate according to claim 1, wherein: the supporting unit (2) comprises a base plate (21), the base plate (21) is formed by processing on-site guniting rebound materials, and the base plate (21) is fixedly arranged on the outer side of the surrounding rock (1).
3. The roadway surrounding rock piece falling area anchor rod matched backing plate according to claim 2, wherein: drilling (11) have been seted up in the outside of country rock (1), the inner chamber of backing plate (21) is equipped with stock (4), through-hole (22) have been seted up with the corresponding position of drilling (11) on backing plate (21), just the diameter size of through-hole (22) is greater than the diameter size of stock (4), the one end of stock (4) orientation country rock (1) runs through-hole (22) and extends to the inner chamber of drilling (11) and be connected with country rock (1).
4. A roadway surrounding rock-piece drop zone anchor rod matched pad as claimed in claim 3, wherein: one side that country rock (1) was kept away from to backing plate (21) is equipped with layer board (3), the one end of stock (4) orientation country rock (1) runs through layer board (3), through-hole (22) in proper order and extends to the inner chamber of drilling (11) and be connected with country rock (1) through the anchoring agent, just the other end outside spiro union of stock (4) has nut (6), the one end and the layer board (3) looks butt of nut (6).
5. The roadway surrounding rock piece falling area anchor rod matched backing plate according to claim 4, wherein: the outside of stock (4) is located between layer board (3), nut (6) has cup jointed ball pad (5), the one end of stock (4) orientation country rock (1) runs through ball pad (5), layer board (3), through-hole (22) in proper order and extends to the inner chamber of drilling (11) and be connected with country rock (1) through the anchoring agent, just the one end and ball pad (5) looks butt of nut (6).
6. The roadway surrounding rock piece falling area anchor rod matched backing plate according to claim 2, wherein: the backing plate (21) comprises reinforcing ribs (24), each reinforcing rib (24) comprises a plurality of transverse ribs (241) and longitudinal ribs (242), and the transverse ribs (241) and the longitudinal ribs (242) are welded relatively to form a 'well' -shaped inner cavity fixedly mounted on the backing plate (21).
7. The roadway surrounding rock piece falling area anchor rod matched backing plate according to claim 1, wherein: the protection unit (23) comprises a fixing rod (231), two sides of the fixing rod (231) penetrate through the base plate (21) to extend to the outer side, two sides of the fixing rod (231) are connected with connecting holes (232), and the protection unit (23) is connected with a surrounding rock (1) protection net through the two connecting holes (232).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320048107.8U CN219034787U (en) | 2023-01-06 | 2023-01-06 | Supporting backing plate of regional stock is fallen to tunnel surrounding rock piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320048107.8U CN219034787U (en) | 2023-01-06 | 2023-01-06 | Supporting backing plate of regional stock is fallen to tunnel surrounding rock piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219034787U true CN219034787U (en) | 2023-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320048107.8U Active CN219034787U (en) | 2023-01-06 | 2023-01-06 | Supporting backing plate of regional stock is fallen to tunnel surrounding rock piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219034787U (en) |
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2023
- 2023-01-06 CN CN202320048107.8U patent/CN219034787U/en active Active
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