CN219974531U - Angle control device for foot locking anchor pipe - Google Patents
Angle control device for foot locking anchor pipe Download PDFInfo
- Publication number
- CN219974531U CN219974531U CN202320300405.1U CN202320300405U CN219974531U CN 219974531 U CN219974531 U CN 219974531U CN 202320300405 U CN202320300405 U CN 202320300405U CN 219974531 U CN219974531 U CN 219974531U
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- CN
- China
- Prior art keywords
- locking anchor
- foot locking
- angle
- foot
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 210000001503 joint Anatomy 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims description 4
- 239000011435 rock Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010009 beating Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Abstract
The utility model discloses a foot locking anchor pipe angle control device which comprises two groups of foot locking anchor pipes, wherein each group of foot locking anchor pipes comprises two angle steels, the two angle steels are connected through a steel pipe, the angle steels of the two groups of foot locking anchor pipes are connected through a butt joint bolt, the characteristic that the horizontal angle of the foot locking anchor pipe is downwards 15 degrees is ensured by using the method, the problem of precision control during installation of the foot locking anchor pipes is solved, the foot locking anchor pipes are arranged in a beating mode, disturbance to surrounding rocks is reduced, the strength of the surrounding rocks is reduced, the surrounding rocks and various supporting structures form a unified stress structure system, and the condition that the angle of the foot locking anchor pipes arranged at arch feet is uneven is improved.
Description
Technical Field
The utility model relates to the technical field of foot locking anchor pipes, in particular to a foot locking anchor pipe angle control device.
Background
A large-section tunnel is built in shallow soft stratum, in order to reduce the sinking of an upper step primary support caused by weakening of a substrate and the sinking caused by suspending of a lower step excavation primary support, the setting of a foot locking anchor pipe is an effective measure for controlling the sinking, and especially under the conditions of soft stratum, large water content of stratum and accumulated water of arch feet, the effect of controlling vault and ground sinking is obvious due to the fact that the foot locking anchor pipe is additionally arranged, the precision control is poor when the existing foot locking anchor pipe is installed, and the disturbance to surrounding rock is increased.
Disclosure of Invention
The utility model aims to provide a foot locking anchor pipe angle control device which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the angle control device for the foot locking anchor pipes comprises two groups of foot locking anchor pipes, wherein each group of foot locking anchor pipes comprises two angle steels, the two angle steels are connected through steel pipes, and the angle steels of the two groups of foot locking anchor pipes are connected through butt bolts.
Preferably, the foot locking anchor pipe is welded by adopting 75 x 5mm angle steel and a phi 70mm seamless steel pipe.
Preferably, the butt-joint bolt is an M20 bolt, and the length of the butt-joint bolt is more than or equal to 18cm.
Preferably, 4 sets of locking anchor pipes are arranged on each arch frame for construction.
Compared with the prior art, the utility model has the beneficial effects that: by using the method, the characteristic that the horizontal angle of the foot locking anchor pipe is downward by 15 degrees is ensured, the problem of precision control during installation of the foot locking anchor pipe is solved, disturbance to surrounding rock is reduced, strength of the surrounding rock is reduced, the surrounding rock and various supporting structures form a uniform stress structure system, and the situation that the angle of the foot locking anchor pipe arranged at an arch foot is uneven is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a side view of the present utility model.
In the figure: 1-angle steel, 2-butt bolts and 3-steel pipes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the utility model provides a foot locking anchor pipe angle control device, which comprises two groups of foot locking anchor pipes, wherein each group of foot locking anchor pipes comprises two angle steels 1, the two angle steels 1 are connected through a steel pipe 3, and the angle steels 1 of the two groups of foot locking anchor pipes are connected through a butt joint bolt 2.
The foot locking anchor pipe is welded by adopting angle steel with the thickness of 75 x 5mm and a seamless steel pipe with the thickness of phi 70 mm.
The butt-joint bolt adopts an M20 bolt, and the length of the butt-joint bolt is more than or equal to 18cm.
And 4 sets of foot locking anchor pipes are arranged on each arch frame for construction.
After the arch centering is installed in place, the angle control device of the locking anchor pipe is temporarily fixed at the arch centering position by bolts, so that the fixation is ensured to be firm, and the position movement in the construction process is prevented;
drilling by adopting a pneumatic rock drill, measuring an angle by using a slope ruler in the process of drilling the foot locking anchor pipe hole, and correcting the drilling direction in time;
and (5) removing the angle control device for fixing the foot locking anchor pipe, and installing the foot locking anchor pipe.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a lock foot anchor pipe angle control device which characterized in that: the steel pipe type foot locking anchor comprises two groups of foot locking anchor pipes, wherein each group of foot locking anchor pipes comprises two angle steels (1), the two angle steels (1) are connected through a steel pipe (3), and the angle steels (1) of the two groups of foot locking anchor pipes are connected through a butt joint bolt (2);
the foot locking anchor pipe is welded by adopting 75 x 5mm angle steel (1) and a phi 70mm seamless steel pipe (3);
the butt-joint bolt (2) adopts an M20 bolt, and the length of the butt-joint bolt (2) is more than or equal to 18cm.
2. The foot-locking anchor pipe angle control device according to claim 1, wherein: and 4 sets of foot locking anchor pipes are arranged on each arch frame for construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320300405.1U CN219974531U (en) | 2023-02-23 | 2023-02-23 | Angle control device for foot locking anchor pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320300405.1U CN219974531U (en) | 2023-02-23 | 2023-02-23 | Angle control device for foot locking anchor pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219974531U true CN219974531U (en) | 2023-11-07 |
Family
ID=88592339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320300405.1U Active CN219974531U (en) | 2023-02-23 | 2023-02-23 | Angle control device for foot locking anchor pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219974531U (en) |
-
2023
- 2023-02-23 CN CN202320300405.1U patent/CN219974531U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |