CN210637089U - Novel pipe shed structure - Google Patents
Novel pipe shed structure Download PDFInfo
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- CN210637089U CN210637089U CN201920931259.6U CN201920931259U CN210637089U CN 210637089 U CN210637089 U CN 210637089U CN 201920931259 U CN201920931259 U CN 201920931259U CN 210637089 U CN210637089 U CN 210637089U
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Abstract
The utility model provides a novel pipe shed structure, including pipe shed steel pipe, welding reinforcing bar and the hoop of putting more energy into in the steel pipe outside, the pipe wall of pipe shed steel pipe is equipped with a plurality of injected holes all around. The utility model discloses there is following effect at least: (1) and grouting holes are formed in the pipe shed steel pipes, so that the pipe shed steel pipes can be combined with the rock mass around the pipe shed into a whole through grouting, and the strength of the rock mass around the pipe shed is improved. (2) The steel bar bundles are additionally arranged outside the pipe shed, the crescent ribs outside the steel bars can be effectively bonded with the peripheral rock mass, the guide pipes can be reinforced, the pipe shed structure can effectively support the upper rock mass, integrity and stability of the pipe shed structure and the peripheral rock mass are greatly improved, and construction potential safety hazards are reduced.
Description
Technical Field
The utility model is suitable for a tunnel and underground works's advance support, concretely relates to novel pipe shed structure.
Background
The pipe shed is a forepoling structure which is commonly adopted in tunnel engineering and underground engineering construction, in particular to tunnel engineering of weak and broken surrounding rocks and underground engineering of shallow-buried and underground excavation.
In tunnels and underground works, pipe shed supports are usually arranged circumferentially at intervals along the excavation profile periphery. The pipe shed structure has two main functions, namely, the surrounding rock is reinforced through grouting, and an arch effect is formed at the periphery of an excavation outline; and secondly, a certain amount of steel pipes form a supporting structure similar to a 'simply supported beam' to transfer the pressure of the surrounding rock.
The existing pipe shed structure usually adopts a seamless steel pipe with a certain pipe diameter, and grouting holes with a certain hole diameter are arranged around the pipe wall. The problem that current pipe shed structure exists is: firstly, the outer wall of the steel pipe is smooth and cannot be effectively bonded with the surrounding rock mass; and secondly, the pipe wall of the steel pipe is thin, the integral strength of the steel pipe is not enough, and the upper rock mass cannot be effectively supported.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: to the problem that above-mentioned exists, provide a novel pipe shed structure, can effectively bond with peripheral rock mass, can have certain intensity to support upper portion rock mass again.
The utility model adopts the technical proposal that:
the utility model provides a novel pipe shed supporting construction, its characterized in that includes pipe shed steel pipe, welds reinforcing bar and the hoop of putting more energy into in the steel pipe outside, the pipe wall of pipe shed steel pipe is equipped with a plurality of injected holes all around.
The grouting holes are arranged in a quincunx shape. Furthermore, the aperture of the grouting holes is 6-20 mm, and the distance between the grouting holes is 15-50 cm.
The outer diameter of the pipe shed steel pipe is 79-159 mm, the wall thickness is 6-10 mm, and the length of each section is 3-6 m. Furthermore, each section of pipe shed steel pipe can be connected through welding, the front end of the first section of pipe shed steel pipe is in a taper shape, and no grouting hole is formed in the range of 3m at the rear end of the last section of pipe shed steel pipe.
The steel bar bundles are composed of 3 or more than 3 steel bars with phi 16-phi 32, and the steel bar bundles are welded on the outer wall of the steel pipe. Further, the tendons outside each section of steel pipe may be connected by welding.
The stiffening hoops are composed of a single steel bar with the diameter of 6-10 mm, the stiffening hoops are welded on the outer sides of the steel bars, and the spacing between the stiffening hoops is 0.5-2.5 m.
The utility model discloses there is following effect at least:
(1) and grouting holes are formed in the pipe shed steel pipes, so that the pipe shed steel pipes can be combined with the rock mass around the pipe shed into a whole through grouting, and the strength of the rock mass around the pipe shed is improved.
(2) The steel bar bundles are additionally arranged outside the pipe shed, the crescent ribs outside the steel bars can be effectively bonded with the peripheral rock mass, the guide pipes can be reinforced, the pipe shed structure can effectively support the upper rock mass, integrity and stability of the pipe shed structure and the peripheral rock mass are greatly improved, and construction potential safety hazards are reduced.
The above description is an overview of the present invention, and the present invention is described in detail below with reference to specific examples and accompanying drawings.
Drawings
Fig. 1 is the utility model provides a novel pipe shed supporting construction's schematic structure.
Fig. 2 is the utility model provides a novel pipe shed supporting construction's section schematic diagram.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments. The following examples are presented to illustrate the invention but are not intended to limit the scope of the invention.
Reference is made to the accompanying drawings. The utility model provides a pipe shed supporting construction, including pipe shed steel pipe 1, welding tendon 2 and the hoop of putting more energy into 3 in the steel pipe outside.
Pipe wall of pipe shed steel pipe 1 is equipped with a plurality of injected holes 4 all around, and injected hole 4 is the plum blossom shape and arranges, also a plurality of injected hole 4 be a set of around 1 circumference of pipe shed steel pipe evenly arranges, sets up a plurality of groups injected hole 4 along the axial of pipe shed steel pipe 1, and the position of adjacent group injected hole 4 staggers. The aperture of the grouting holes 4 is 6-20 mm, and the distance between the grouting holes 4 is 15-50 cm.
The outer diameter of the pipe shed steel pipe 1 is 79-159 mm, the wall thickness is 6-10 mm, and the length of each section is 3-6 m. The steel pipes 1 of each section of the pipe shed can be connected by welding, the front end 11 of the steel pipe 1 of the first section of the pipe shed is in a taper shape, and no grouting hole is arranged in the range of 3m at the rear end of the steel pipe 10 of the last section of the pipe shed.
The steel bar bundles 2 are composed of 3 or more steel bars with phi 16-phi 32 and are uniformly distributed along the circumferential direction of the steel pipe 1, and the steel bar bundles 2 are welded on the outer wall of the steel pipe 1. The tendons 2 of each section of steel pipe 1 can be connected by welding with an overlap length of not less than 30 cm.
The stiffening hoops 3 are composed of single steel bars with phi 6-phi 10, the stiffening hoops 3 are welded on the outer sides of the steel bars 2, and the distance between the stiffening hoops 3 is 0.5-2.5 m.
The above detailed description is provided for explaining the present invention, and is only a preferred embodiment of the present invention, but not for limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention are within the scope of the present invention.
Claims (5)
1. The utility model provides a novel pipe shed supporting construction, its characterized in that includes pipe shed steel pipe (1), welds tendon (2) and the hoop of putting more energy into (3) in the steel pipe outside, the pipe wall of pipe shed steel pipe (1) is equipped with a plurality of injected holes (4) all around.
2. A new pipe shed supporting structure as claimed in claim 1, wherein the grouting holes (4) are arranged in a quincunx shape; the aperture of the grouting holes (4) is 6-20 mm, and the distance between the grouting holes (4) is 15-50 cm.
3. The novel pipe shed supporting structure as claimed in claim 1, wherein the pipe shed steel pipe (1) has an outer diameter of 79-159 mm, a wall thickness of 6-10 mm, and a length of 3-6 m; each section of pipe shed steel pipe (1) can be connected through welding, the front end of the first section of steel pipe (1) is in a taper shape, and no grouting hole is formed in the range of 3m of the rear end of the last section of pipe shed steel pipe (1).
4. A novel pipe shed supporting structure as claimed in claim 1, wherein the tendons (2) are composed of 3 or more steel bars Φ 16- Φ 32 and are uniformly arranged along the circumference of the pipe shed steel pipe (1), and the tendons (2) are welded to the outer wall of the steel pipe (1); the steel bar bundles (2) outside each section of steel pipe (1) are connected through welding.
5. A novel pipe shed supporting structure as claimed in claim 1, wherein the stiffening hoops (3) are composed of a single steel bar with a diameter of 6-10, the stiffening hoops (3) are welded to the outside of the steel bar bundles (2), and the spacing between the stiffening hoops (3) is 0.5-2.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931259.6U CN210637089U (en) | 2019-06-19 | 2019-06-19 | Novel pipe shed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931259.6U CN210637089U (en) | 2019-06-19 | 2019-06-19 | Novel pipe shed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210637089U true CN210637089U (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920931259.6U Active CN210637089U (en) | 2019-06-19 | 2019-06-19 | Novel pipe shed structure |
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| Country | Link |
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| CN (1) | CN210637089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145204A (en) * | 2020-10-13 | 2020-12-29 | 侯江伟 | A direction creeps into formula pipe canopy for secretly dig passageway |
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2019
- 2019-06-19 CN CN201920931259.6U patent/CN210637089U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145204A (en) * | 2020-10-13 | 2020-12-29 | 侯江伟 | A direction creeps into formula pipe canopy for secretly dig passageway |
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