CN208203300U - A kind of tear-proof easily couples high rigidity steel mesh - Google Patents
A kind of tear-proof easily couples high rigidity steel mesh Download PDFInfo
- Publication number
- CN208203300U CN208203300U CN201820728497.2U CN201820728497U CN208203300U CN 208203300 U CN208203300 U CN 208203300U CN 201820728497 U CN201820728497 U CN 201820728497U CN 208203300 U CN208203300 U CN 208203300U
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- China
- Prior art keywords
- reinforcing bar
- steel mesh
- steel
- tear
- coupling sleeve
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Abstract
The utility model discloses a kind of tear-proof easily to couple high rigidity steel mesh, including reinforcing bar closed loop, internal reinforcing bar, coupling sleeve, in which: the reinforcing bar closed loop is the closed-loop that a reinforcing bar is constituted, the outer ring as steel mesh；The internal reinforcing bar includes several longitudinal reinforcements and transverse steel being criss-cross arranged, and constitutes a fenestral fabric, one end of internal reinforcing bar is fixed with a steel loop, and the steel ring cap is in reinforcing bar closed loop；The other end of internal reinforcing bar is free end, and is stretched out in outside reinforcing bar closed loop；The coupling sleeve is a cuboid, is opened up thereon along its longitudinal direction there are two circular hole, and the aperture of circular hole is greater than the diameter of internal reinforcing bar, and coupling sleeve is covered on the free end of internal reinforcing bar by one of circular hole.The utility model is of simple structure and low cost, material easily obtains, and site operation is convenient, fast, effective, and use is safe, labor intensity is low.
Description
Technical field
The invention belongs to mining engineering and geotechnical engineering field, in particular to a kind of tear-proof easily couples high rigidity reinforcing bar
Net.
Background technique
Bolting with wire mesh material includes anchor pole, metal tray, steel band, metal mesh etc..Wherein metal mesh is as coal mine roadway anchor
Vital shield table material, the metal mesh of high quality can efficiently control the change of breaking surrounding rock body between adjacent anchor pole in net supporting
Shape gives full play to the supporting effect of anchor net.The support action of metal mesh mainly have three aspect: 1. between balanced adjacent anchor pole rock stratum by
Power state.The extruding to superficial part fractured coal and rock that metal mesh connection can generate deep wall rock dilated deformation between adjacent anchor pole
Power is uniformly distributed on anchor pole, and the point supporting of single anchor rod is made to be changed into the face supporting of Bolt System.2. improving tunnel
The stress of country rock surface failure of rock coal and rock.Compared to steel band, metal mesh has bigger shield surface area, is close to roadway surrounding rock table
Face provides certain supporting power.3. fractured coal and rock between anchor pole is prevented to be caving.Coal mine roadway can generate fracture area after driving,
If holding fractured coal and rock, roadway surrounding rock meeting large area inbreak without using metal mesh, and then lead to anchor rod anchored failure.
In order to solve underground coal mine steel mesh connection problem, simplifies steel mesh and couple process, give full play to steel mesh shield table
Effect, therefore have developed a kind of tear-proof and easily couple high rigidity steel mesh, the connecting mode of the steel mesh is using direct connection hook
Formula, the connection of adjacent net pieces were not only easy but also firm, it is not easy to disengage, without carrying out pressure stubble overlap joint, save support cost.
The survey showed that for a large amount of underground, in coal mine roadway bolting with wire mesh compared with frequently with steel mesh deformation failure situation
Mainly include the following types: 1. forming pendant pocket between adjacent anchor pole.It can be seen that from metal mesh bending deformation situation due to by tunnel
The broken swollen squeezing action of superficial part country rock, metal mesh are formed very big pendant pocket by very hightension between anchor pole.2. iron wire of networking is disconnected
Splitting or disengaging causes metal mesh to fail.Networking material in underground generally twists joint networking using No. 14 or more iron wires are bifilar, and iron wire breaks
Splitting or disengaging causes metal mesh failure to be mainly when reaching the rupture strength or site operation of iron wire due to top side coal and rock load
It is unreliable that iron wire is twisted joint, and metal mesh is torn along connection place.3. pad disengagement in metal mesh edge causes metal mesh to fail.Underground makes
Metal mesh generally the lap-joint of reinforcing bar using resistance welding technology weld, when roadway deformation is larger, metal mesh can because
Stress is excessive to cause pad to crack, and then mesh sheet is caused to be torn, and causes suspension roof support partial failure.4. existing reinforcing bar is networked certainly
It can misplace because of adjacent net pieces in the connection process of net, the connection of net has difficulties, when causing later period stress larger, mesh sheet connection
Locate easily openable.Although reinforcing bar overcomes the shortcomings that causing mesh sheet connection place low strength using iron wire connection from networking, by
Difficulty is bent in metal mesh reinforcing bar, causes adjacent net pieces connection place reinforcing bar mesh bigger than normal, when reinforcing bar is larger from networking stress, meeting
Because bond strength is inadequate, the place of being hooked together, which disengages, makes mesh sheet fail.For from supporting effect, reinforced mesh effect is pushed down with anchor pole
Preferably, but consider from underground construction angle, after a cyclic advance is tunneled forward in tunnel, it is desirable that networking rapidly, but at this time
Subsequent net is pushed down by anchor pole, and the anchor pole for having applied pretightning force is forbidden to move back anchor, i.e., will apply the anchor of pretightning force
Stem nut is backed out, and is tightened again again after networking, at this time in order to guarantee network effect, generally require adjacent net pieces to overlap, and
It to network once every 200-300mm, use the double connection of iron wire sometimes, i.e., overlap joint is crossed by the Netcom coupled below and use tied silk
It is connected in the mesh sheet compressed by anchor pole, and mesh sheet directly cannot be compressed by anchor pole.It is not only time-consuming in this way to take material, but also work as
When pressure from surrounding rock is larger, it is easy to tear with the mesh sheet that tied silk couples.
Roadway supported by bolt metal mesh destroy mainly due between adjacent net pieces connection failure, such as couple tied silk disengage or
Fracture, the fracture of metal mesh boundary pad, pad ambient intensity reduce section fracture, metal and collude with intensity not from networking connection place
It is enough.
Summary of the invention
To solve metal mesh Problem of Failure caused by above-mentioned reason, the object of the present invention is to provide a kind of tear-proof easily to couple
High rigidity steel mesh.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of tear-proof easily couples high rigidity steel mesh, including reinforcing bar closed loop, internal reinforcing bar, coupling sleeve, in which:
The reinforcing bar closed loop is the closed-loop that a reinforcing bar is constituted, the outer ring as steel mesh；
The internal reinforcing bar includes several longitudinal reinforcements and transverse steel being criss-cross arranged, and composition one is latticed
Structure, one end of internal reinforcing bar are fixed with a steel loop, and the steel ring cap is in reinforcing bar closed loop；The other end of internal reinforcing bar is freely
End, and stretch out in outside reinforcing bar closed loop；
The coupling sleeve is a cuboid, is opened up thereon along its longitudinal direction there are two circular hole, the aperture of circular hole is big
In the diameter of internal reinforcing bar, coupling sleeve is covered on the free end of internal reinforcing bar by one of circular hole.
The steel loop is fixed on one end of internal reinforcing bar by welding.
The steel loop and is arranged coupling sleeve and is made by the end bending of internal reinforcing bar.
The steel loop internal diameter is 2mm bigger than the diameter of reinforcing bar closed loop.
The free end of the internal reinforcing bar stretches out in three points of the side length for the grid that the length outside reinforcing bar closed loop is steel mesh
Two.
The coupling sleeve is located on the inside of reinforcing bar closed loop.
The welding of the intersection of the longitudinal reinforcement and transverse steel.
The length l of the coupling sleeve1For the one third of the side length of the grid of steel mesh, the aperture D of circular hole2Than internal steel
The diameter D of muscle1Big 2mm, the width l of coupling sleeve2=C1D2Mm, height l3=C2D2Mm, C1、C2It is coefficient, 1 < C1< 2,2 < C2<
3.5。
The utility model has the advantages that tear-proof provided by the invention easily couples high rigidity steel mesh compared with the prior art, have following
Advantage:
1, steel mesh by the complete reinforcing bar in outer ring one, one end is processed into the reinforcing bar of steel loop and coupling sleeve forms, structure letter
It is single, it is easy to process；
2, the welding of the drilling processing, steel mesh to steel ring and coupling sleeve can be completed using existing equipment.By steel mesh
After being welded, the connection of steel mesh can be completed using reinforcing bar pincers.The reinforcing bar and coupling sleeve of screwing steel bars net easily obtain, and price is just
Preferably；Construction is simple, labor intensity are low；
3, this steel mesh integral fastening effect with super strength, anchor force is by bulk metal net shared.Couple interplanting
It is simple and reliable for the critical component of tear-proof steel mesh, by diplopore fixed steel bars end, when large deformation of roadway occurs
It is not easy to disengage.
4, compared with regular reinforcement net, the more integration of tear-proof steel mesh is not easy to influence anchoring effect because mesh sheet is destroyed
Fruit causes the waste of material.Simultaneously mesh sheet be coupled to each other effect can both make coal and rock self-strength enhance and also can be effective
Inhibit deformation of the surrounding rock in tunnel, it is ensured that the stabilization in coal petrography tunnel gives full play to the anchorage effect of anchor net, reduces roadway support cost.
Detailed description of the invention
Fig. 1 is steel mesh overall structure diagram；
Fig. 2 a is the main view of coupling sleeve；
Fig. 2 b is the side view of coupling sleeve；
Fig. 2 c is the top view of coupling sleeve；
Coupling sleeve uses schematic diagram when Fig. 3 is the connection of adjacent steel mesh；
In figure, 1- reinforcing bar closed loop, the inside 2- reinforcing bar, 201- steel loop, 202- longitudinal reinforcement, 203- transverse steel, 3- connection
Set, 301- circular hole.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
Easily couple high rigidity steel mesh, including reinforcing bar closed loop 1, internal reinforcing bar 2, connection as shown in Figure 1 for a kind of tear-proof
Set 3, in which:
Reinforcing bar closed loop 1 is the closed-loop that a complete reinforcing bar is constituted, the outer ring as steel mesh；The length of reinforcing bar will reach
Encompass a complete steel mesh outmost turns closed loop, bar diameter D1；
Internal reinforcing bar 2 includes several longitudinal reinforcements 202 and transverse steel 203 being criss-cross arranged, and constitutes a tool
There is the reticular structure of the identical grid of several sizes, the shape of grid is square, and one end of internal reinforcing bar 2 is fixed with one
Steel loop 201,201 sets of the steel loop is in reinforcing bar closed loop 1；The other end of internal reinforcing bar 2 is free end, and stretches out in reinforcing bar closed loop 1
Outside；
Coupling sleeve 3 is a cuboid, is opened up thereon along its longitudinal direction there are two circular hole 301, the aperture of circular hole 301
Greater than the diameter of internal reinforcing bar 2, coupling sleeve 3 is by 301 sets of one of circular hole on the free end of internal reinforcing bar 2.
The side length of single grid is l, and the length of entire steel mesh is L1, width L2, the free end of internal reinforcing bar 2 is stretched out
In the length outside reinforcing bar closed loop 1 be ls；lsIt is 2/3rds of l.Coupling sleeve 3 is located at 1 inside of reinforcing bar closed loop.In case later period and phase
Adjacent steel mesh connection.
Form that there are two types of steel loops 201, one is: a steel loop is fixed in one end of internal reinforcing bar 2 by welding
201, another kind is: internal reinforcing bar 2 first being passed through to a circular hole 301 of coupling sleeve 3, and the end of internal reinforcing bar 2 is stretched out, so
Afterwards by the end bending of stretching, and the end of bending is then passed through to another circular hole 301 of coupling sleeve 3, in internal reinforcing bar 2
End constitutes a cyclic structure, constitutes steel loop 201.201 internal diameter of steel loop is 2mm bigger than the diameter of reinforcing bar closed loop 1.
The welding of the intersection of longitudinal reinforcement 202 and transverse steel 203.
The length l of coupling sleeve 31For the one third of the side length l of the grid of steel mesh, the aperture D of circular hole 3012Than internal steel
The diameter D of muscle 21Big 2mm, the width l of coupling sleeve 32=C1D2Mm, height l3=C2D2Mm, C1、C2It is coefficient, 1 < C1< 2,2 < C2<
3.5.Coupling sleeve material be steel or hard plastic, if steel, the hole wall of coupling sleeve be contemplated that it is thinner, if hard plastic, coupling sleeve
Hole wall be contemplated that it is thick a bit.
In one embodiment of the invention, the side length of the grid of steel mesh is 5~12cm.
When easily coupling high rigidity steel mesh using tear-proof, specific networking mode is as shown in figure 3, tear-proof is easily coupled
High rigidity steel mesh be arranged steel loop 201 when being known as lantern ring, the free end of internal reinforcing bar 2 is stretched out in outside reinforcing bar closed loop 1
When being known as reinforcing bar stretching；Specific steps are as follows:
As shown in the position A in Fig. 3, first have to the lantern ring of steel mesh while with the stretching of the reinforcing bar of another steel mesh pair
It connects, then bend the free end of internal reinforcing bar 2 and catches on the reinforcing bar closed loop 1 of adjacent steel mesh；
Coupling sleeve preformed hole is passed through as shown in the position B in Fig. 3 and the position C, then by the reinforcing bar after bending；
As shown in the position D in Fig. 3, finally the reinforcing bar for exposing coupling sleeve is reversely bent again, increases metal mesh linking intensity,
Anti- anti-avulsion connection.
The configuration of the present invention is simple, low in cost, material easily obtain, and site operation is convenient, fast, effective, use is safe,
Labor intensity is low.Not only it can solve the technical problem of steel mesh effectively shield table, but also can solve bolting with wire mesh because steel mesh pad is de-
The problem of opening or net tearing and influencing anchoring effect plays bolting with wire mesh material to reduce roadway support cost to the maximum extent
The supporting performance of material provides strong technical guarantee for effectively control high stress cherry coal (rock) deformation of the surrounding rock in tunnel.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of tear-proof easily couples high rigidity steel mesh, it is characterised in that: including reinforcing bar closed loop (1), internal reinforcing bar (2), connection
Female connector (3), in which:
The reinforcing bar closed loop (1) is the closed-loop that a reinforcing bar is constituted, the outer ring as steel mesh；
The internal reinforcing bar (2) includes several longitudinal reinforcements being criss-cross arranged (202) and transverse steel (203), is constituted
One fenestral fabric, one end of internal reinforcing bar (2) are fixed with a steel loop (201), which covers in reinforcing bar closed loop
(1) on；The other end of internal reinforcing bar (2) is free end, and stretches out in reinforcing bar closed loop (1) outside；
The coupling sleeve (3) is a cuboid, is opened up thereon along its longitudinal direction there are two circular hole (301), circular hole (301)
Aperture be greater than the diameter of internal reinforcing bar (2), coupling sleeve (3) by one of circular hole (301) cover internal reinforcing bar (2) from
By on end.
2. tear-proof according to claim 1 easily couples high rigidity steel mesh, it is characterised in that: the steel loop (201) is logical
The mode for crossing welding is fixed on one end of internal reinforcing bar (2).
3. tear-proof according to claim 1 easily couples high rigidity steel mesh, it is characterised in that: the steel loop (201) by
The end bending of internal reinforcing bar (2), and be arranged coupling sleeve (3) and be made.
4. tear-proof according to claim 1 to 3 easily couples high rigidity steel mesh, it is characterised in that: the steel loop
(201) internal diameter is 2mm bigger than the diameter of reinforcing bar closed loop (1).
5. tear-proof according to claim 1 easily couples high rigidity steel mesh, it is characterised in that: the internal reinforcing bar (2)
Free end stretch out in the length of reinforcing bar closed loop (1) outside be steel mesh grid side length 2/3rds.
6. tear-proof according to claim 1 easily couples high rigidity steel mesh, it is characterised in that: coupling sleeve (3) position
On the inside of reinforcing bar closed loop (1).
7. tear-proof according to claim 1 easily couples high rigidity steel mesh, it is characterised in that: the longitudinal reinforcement
(202) it is welded with the intersection of transverse steel (203).
8. tear-proof according to claim 1 easily couples high rigidity steel mesh, it is characterised in that: the coupling sleeve (3)
Length l1For the one third of the side length of the grid of steel mesh, the aperture D of circular hole (301)2Than the diameter D of internal reinforcing bar (2)1Greatly
2mm, the width l of coupling sleeve (3)2=C1D2Mm, height l3=C2D2Mm, C1、C2It is coefficient, 1 < C1< 2,2 < C2<3.5。
9. tear-proof according to claim 1 or 8 easily couples high rigidity steel mesh, it is characterised in that: the coupling sleeve (3)
Material is steel or hard plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820728497.2U CN208203300U (en) | 2018-05-16 | 2018-05-16 | A kind of tear-proof easily couples high rigidity steel mesh |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820728497.2U CN208203300U (en) | 2018-05-16 | 2018-05-16 | A kind of tear-proof easily couples high rigidity steel mesh |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203300U true CN208203300U (en) | 2018-12-07 |
Family
ID=64517187
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820728497.2U Expired - Fee Related CN208203300U (en) | 2018-05-16 | 2018-05-16 | A kind of tear-proof easily couples high rigidity steel mesh |
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| CN (1) | CN208203300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412520A (en) * | 2018-05-16 | 2018-08-17 | 中国矿业大学 | A kind of tear-proof easily couples high rigidity bar-mat reinforcement |
-
2018
- 2018-05-16 CN CN201820728497.2U patent/CN208203300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412520A (en) * | 2018-05-16 | 2018-08-17 | 中国矿业大学 | A kind of tear-proof easily couples high rigidity bar-mat reinforcement |
| CN108412520B (en) * | 2018-05-16 | 2024-03-26 | 中国矿业大学 | Tearing-resistant easy-to-connect high-rigidity reinforcing steel bar mesh |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 Termination date: 20190516 |