CN208220824U - A kind of anchor pole for small-sized Wall Rock of Tunnel supporting - Google Patents
A kind of anchor pole for small-sized Wall Rock of Tunnel supporting Download PDFInfo
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- CN208220824U CN208220824U CN201820648996.0U CN201820648996U CN208220824U CN 208220824 U CN208220824 U CN 208220824U CN 201820648996 U CN201820648996 U CN 201820648996U CN 208220824 U CN208220824 U CN 208220824U
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- anchor pole
- linkage section
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- double rod
- rod body
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Abstract
The utility model relates to field of civil engineering technical fields, more particularly to a kind of anchor pole for small-sized Wall Rock of Tunnel supporting, including tunnel rock mass and the embedding hole of anchor pole, anchor pole double rod body, anchor pole linkage section, the anchor pole double rod body is the body of rod of U-shaped structure, the part of middle part bending is anchor pole linkage section, the both ends body of rod of anchor pole double rod body opening is fully embedded in the embedding hole of anchor pole, the embedding hole of anchor pole is arranged on tunnel rock mass, the anchor pole linkage section exposes on the outside of tunnel rock mass, the utility model increase anchor pole actually with country rock contact surface, namely increase bonding force value, to greatly strengthen the effect of suspension roof support.
Description
Technical field
The utility model relates to field of civil engineering technical fields, and in particular to a kind of for small-sized Wall Rock of Tunnel supporting
Anchor pole.
Background technique
In engineering, especially in the work progress of underground engineering, suspension roof support effectively prevents tunnel as a kind of
The supporting measure of surrouding rock deformation is widely used in the excavation supporting of subterranean tunnel, and the principle of suspension roof support is exactly with metalwork system
It at roofbolt, squeezes into the pre-drilled hole of tunnel surrounding rock body, country rock and rock mass stability is incorporated in one dependent on cohesive action
It rises and generates suspension effectiveness, combination beam effect, reinforcing effect, to achieve the purpose that supporting.According to requirement of engineering rock-bolt length from
1.5m~9m length differs.
However in real engineering construction, it is frequently encountered the construction environment of small-sized tunnel, especially this maximum gauge is small
In the small-sized tunnel of 3m, in the work progress of these structures, since construction space is narrow, simultaneously because anchor bolt construction is special
Property, when length is greater than 3m construction operation can not be just unfolded, it is impossible to carry out using longer anchor pole in traditional linear type anchor pole
Surrounding rock supporting.
Therefore often actually enter rock anchors length it is very short, thus cause dependent on cementation anchor pole actually with enclose
Rock contact surface very little, it is difficult to reach expected and bond force value, thus greatly reduce the effect of suspension roof support, this physical presence
The problem of usually brought great potential safety hazard to subterranean tunnel construction, therefore be badly in need of a kind of anchor pole, small underground can be improved
Space surrounding rock supporting effect.
Summary of the invention
The utility model aim be in order to solve anchor pole it is practical enter rock length it is very short, to cause dependent on cementation
Anchor pole actually with country rock contact surface very little, it is difficult to reach expected and bond force value, thus greatly reduce suspension roof support effect
The problem of fruit.
For this purpose, the utility model provides a kind of anchor pole for small-sized Wall Rock of Tunnel supporting, including tunnel rock mass and anchor
The embedding hole of bar, anchor pole double rod body, anchor pole linkage section, the anchor pole double rod body are the body of rod of U-shaped structure, and the part of middle part bending is
The both ends body of rod of anchor pole linkage section, anchor pole double rod body opening is fully embedded in the embedding hole of anchor pole, the embedding hole setting of anchor pole
On tunnel rock mass, the anchor pole linkage section exposes on the outside of tunnel rock mass.
The anchor pole double rod body is made of the solid cylinder rib of steel or stainless steel.
The anchor pole linkage section is welded on anchor pole double rod body, and two sections of bodies of rod of anchor pole double rod body are linked together.
The anchor pole linkage section is semicircle, and arc radius is between 2.5cm ~ 5cm.
The anchor pole linkage section is linear, and length is between 5cm ~ 10cm.
When distance is between 10cm ~ 50cm between described two anchor pole double rod bodies, the anchor pole of two anchor pole double rod bodies is connected
Section is connect to fix by single or multiple connection reinforcement weldings.
The beneficial effects of the utility model are:
1, due to the body of rod that anchor pole double rod body is U-shaped structure, the length into rock mass is twice of common bolt, especially suitable
It is less than the small-sized tunnel of 3m for small-sized tunnel maximum gauge.
2, due to the body of rod that anchor pole double rod body is U-shaped structure, the part of middle part bending is anchor pole linkage section, anchor pole double rod body
The both ends body of rod of opening is fully embedded in the embedding hole of anchor pole, and anchor pole double rod body is linked together by linkage section, on stress characteristic
Mutually support coaction can be mutually restricted, therefore increases anchor pole actually with country rock contact surface, that is, is increased viscous
Force value is tied, to greatly strengthen the effect of suspension roof support.
3, it is made due to anchor pole double rod body of the solid cylinder rib of steel or stainless steel, and anchor pole linkage section is welded on
On anchor pole double rod body, that is, have powerful support force, and has the advantages that production is simple, low in cost.
4, it is fixed due to the anchor pole linkage section of two anchor pole double rod bodies by connecting reinforcement welding, is enhanced in anchor pole double rod body
On the basis of supporting effect, supporting effect is further enhanced, and has that supporting effect is good, easy to operate, using flexible, accounts for
With the few advantage of construction headroom.
Detailed description of the invention
Fig. 1 is the top view cross section structural schematic diagram of the utility model；
Fig. 2 is the anchor structure schematic diagram of the arc linkage section of the utility model；
Fig. 3 is the anchor structure schematic diagram of the linear linkage section of the utility model；
In figure: 1, anchor pole double rod body；2, anchor pole linkage section；3, tunnel rock mass；4, the embedding hole of anchor pole.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the utility model is further described, below in conjunction with attached drawing
And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
Embodiment 1:
In order to solve anchor pole it is practical enter rock length it is very short, thus cause dependent on cementation anchor pole actually with enclose
Rock contact surface very little, it is difficult to reach expected the problem of bonding force value, thus greatly reducing Effects of Supporting, the present embodiment
If Fig. 1 provides a kind of anchor pole for small-sized Wall Rock of Tunnel supporting, a kind of anchor pole for small-sized Wall Rock of Tunnel supporting, including
Tunnel rock mass 3 and the embedding hole 4 of anchor pole, anchor pole double rod body 1, anchor pole linkage section 2, the anchor pole double rod body 1 are the bar of U-shaped structure
Body, the part of middle part bending are anchor pole linkage section 2, and the both ends body of rod that anchor pole double rod body 1 is open is fully embedded within the embedding hole 4 of anchor pole
In, the embedding hole 4 of anchor pole is arranged on tunnel rock mass 3, and the anchor pole linkage section 2 exposes in 3 outside of tunnel rock mass.
In actual operation, it drills on country rock first, obtains the embedding hole 4 of anchor pole, then by the double of the anchor pole double rod body 1
The body of rod gos deep into the embedding hole 4 of anchor pole of country rock, this U-shaped structure anchor pole due to anchor pole linkage section 2 presence so that double rod body connect
It is integrated, is mutually restricted on stress characteristic and support coaction each other, compensate for the single "-" type anchor in underground confined space
Existing cohesive force deficiency while but the defect for the lengthening that can not postpone when bar supporting.
For the utility model due to the body of rod that anchor pole double rod body 1 is U-shaped structure, the length into rock mass is the two of common bolt
Times, it is particularly suitable for the small-sized tunnel that small-sized tunnel maximum gauge is less than 3m.
Common linear type anchor pole is in this construction environment, and length is no more than 3m, more than cannot be unfolded to be applied
Work industry, and the utility model is due to the U-shaped structure of anchor pole double rod body 1, and length can achieve 6m, considerably increase and rock mass
Connection length.
For the utility model since anchor pole double rod body 1 is the body of rod of U-shaped structure, the part of middle part bending is anchor pole linkage section 2,
The both ends body of rod of anchor pole double rod body opening is fully embedded in the embedding hole 4 of anchor pole, and anchor pole double rod body 1 is connected by anchor pole linkage section 2
Be integrated, can mutually be restricted on stress characteristic mutually support coaction, therefore increase anchor pole double rod body 1 actually with enclose
Rock contact surface, that is, bonding force value is increased, to greatly strengthen the effect of suspension roof support.
Embodiment 2:
On the basis of embodiment 1, as shown in Figures 2 and 3, the anchor pole double rod body 1 by steel or stainless steel filled circles
Cylinder rib is made.
The anchor pole linkage section 2 is welded on anchor pole double rod body 1, and two sections of bodies of rod of anchor pole double rod body 1 are linked together.
The anchor pole linkage section 2 is semicircle, and arc radius is 2.5cm ~ 5cm.
The anchor pole linkage section 2 is linear, and length is 5cm ~ 10cm.
Since anchor pole double rod body is made of the solid cylinder rib of steel or stainless steel, and anchor pole linkage section is welded on anchor
On bar double rod body, that is, have powerful support force, and has the advantages that production is simple, low in cost.
Embodiment 3:
On the basis of embodiment 1 and embodiment 2, distance is between 10cm ~ 50cm between described two anchor pole double rod bodies 1
When, the anchor pole linkage section 2 of two anchor pole double rod bodies 1 is fixed by single or multiple connection reinforcement weldings.
In actual operation, the arrangement of anchor pole double rod body 1 needs depending on the fracture intensity of rock mass, when anchor pole is double
When the arrangement of the body of rod 1 is intensive, the anchor pole linkage section 2 that can be adjusted the distance on the anchor pole double rod body 1 within 50cm is welded again
Fixation is connect, anchor pole double rod body 1 of the distance less than 50cm is all welded into one between each other, and multiple anchor pole double rod bodies 1 can reach
To linear series or netted connection, it can greatly increase the effect of surrounding rock supporting.
And because the supporting effect of anchor pole double rod body 1 is double in traditional linear type anchor pole, simply by distance
Close linear type anchor pole welds, and is unable to reach the effect of the present embodiment.
It is fixed due to the anchor pole linkage section of two anchor pole double rod bodies by connecting reinforcement welding in the present embodiment, it is double in anchor pole
The body of rod enhance supporting effect on the basis of, further enhance supporting effect, and have supporting effect it is good, it is easy to operate, make
With advantage flexible, that occupancy construction headroom is few.
The embodiments of the present invention assembly and use process is as follows:
Assembling process: common linear type anchor pole is subjected to bending from middle part first, it is ensured that radius bend is 2.5cm ~ 5cm
Between, or use the reinforcing bar of 5cm ~ 10cm by one end of two linear type anchor poles, it is integrated, be can be completed by being welded and fixed
Entire assembling process.
Use process: in the construction environment of small-sized tunnel, small-sized tunnel of the especially this maximum gauge less than 3m, first
The embedding hole of anchor pole is drilled out on the rock mass of country rock, the depth in the embedding hole of the anchor pole drilled out is greater than the length of anchor pole double rod body, will
The anchor pole double rod body made is put into the embedding hole of anchor pole, can also be knocked in anchor pole double rod body in the embedding hole of anchor pole by tool,
When two anchor pole double rod body distances are less than 50cm, it is also necessary to fix the two anchor pole double rod bodies by reinforcement welding.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (6)
1. a kind of anchor pole for small-sized Wall Rock of Tunnel supporting, including tunnel rock mass (3) and the embedding hole of anchor pole (4), feature exists
In: it further include anchor pole double rod body (1), anchor pole linkage section (2), the anchor pole double rod body (1) is the body of rod of U-shaped structure, middle part folding
Curved part is anchor pole linkage section (2), and the both ends body of rod of anchor pole double rod body (1) opening is fully embedded in the embedding hole of anchor pole (4),
The embedding hole of anchor pole (4) is arranged on tunnel rock mass (3), and the anchor pole linkage section (2) is exposed on the outside of tunnel rock mass (3).
2. the anchor pole according to claim 1 for small-sized Wall Rock of Tunnel supporting, it is characterised in that: the anchor pole double rod body
(1) it is made of the solid cylinder rib of steel or stainless steel.
3. the anchor pole according to claim 1 for small-sized Wall Rock of Tunnel supporting, it is characterised in that: the anchor pole linkage section
(2) it is welded on anchor pole double rod body (1), two sections of bodies of rod of anchor pole double rod body (1) is linked together.
4. the anchor pole according to claim 1 for small-sized Wall Rock of Tunnel supporting, it is characterised in that: the anchor pole linkage section
It (2) is semicircle, arc radius is between 2.5cm ~ 5cm.
5. the anchor pole according to claim 4 for small-sized Wall Rock of Tunnel supporting, it is characterised in that: the anchor pole linkage section
It (2) is linear, length is between 5cm ~ 10cm.
6. the anchor pole according to claim 1 for small-sized Wall Rock of Tunnel supporting, it is characterised in that: described two anchor poles are double
When distance is between 10cm ~ 50cm between the body of rod (1), by the anchor pole linkage section (2) of two anchor pole double rod bodies (1) by single or
Multiple connection reinforcement weldings are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820648996.0U CN208220824U (en) | 2018-05-03 | 2018-05-03 | A kind of anchor pole for small-sized Wall Rock of Tunnel supporting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820648996.0U CN208220824U (en) | 2018-05-03 | 2018-05-03 | A kind of anchor pole for small-sized Wall Rock of Tunnel supporting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208220824U true CN208220824U (en) | 2018-12-11 |
Family
ID=64510325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820648996.0U Active CN208220824U (en) | 2018-05-03 | 2018-05-03 | A kind of anchor pole for small-sized Wall Rock of Tunnel supporting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208220824U (en) |
-
2018
- 2018-05-03 CN CN201820648996.0U patent/CN208220824U/en active Active
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