CN111455995B - Mountain region building resistance to plucking steel pipe stock - Google Patents
Mountain region building resistance to plucking steel pipe stock Download PDFInfo
- Publication number
- CN111455995B CN111455995B CN202010331679.8A CN202010331679A CN111455995B CN 111455995 B CN111455995 B CN 111455995B CN 202010331679 A CN202010331679 A CN 202010331679A CN 111455995 B CN111455995 B CN 111455995B
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- anchor rod
- uplift
- steel pipe
- anchor
- pulling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a mountain building uplift steel pipe anchor rod, and belongs to the technical field of mountain building construction. The anchor rod comprises an anchor rod end, an anchor rod body and an anchor head, wherein the anchor rod end is provided with a grout stop plug, one side of the grout stop plug is connected with an end plate, end connecting bolts are arranged on the surface of the end plate at intervals, anchor bolt holes and uplift member holes are arranged on the surface of the anchor rod body at intervals, uplift members are arranged inside the uplift member holes, and steel pipe bolts are arranged at the intersecting nodes of the uplift members. The anti-pulling device is convenient to install and construct, the anti-pulling component can rotate outwards by taking the pipe wall as a fulcrum in the anti-pulling stress process of the anti-pulling component, the peripheral anti-pulling component extends outwards like a barb, the contact area between the peripheral anti-pulling component and the peripheral rock-soil body is increased, the anti-pulling force of the anchor rod is further increased, the stability of the side slope is improved, and the anti-pulling device can be produced in batches in a factory.
Description
Technical Field
The invention relates to the technical field of mountain building construction, in particular to a pull-out resistant steel pipe anchor rod for a mountain building.
Background
Along with the development of economic society of China and the continuous increase of population, the housing construction land is in shortage day by day, under this condition, the mountain land building is more and more generally applied, because the mountain land building is mostly built according to mountains, and the side slope is the most easy to be destroyed when encountering natural disasters such as rainwater, earthquake and the like, and the life of the building and people is seriously threatened, and the application of the anchor rod technology plays a vital role in stabilizing the side slope, at present, most of anchor rod bodies of domestic anchor rods adopt steel bars and steel pipes with holes, and the anchor rod can play a good role under the condition of good geological conditions, but when the geological conditions are not good, the anchor rod is easy to lose efficacy because the friction resistance with peripheral rock and soil bodies is small. We have found that the main cause of most anchor rod failure is not the breaking of the anchor rod body but the detachment of the anchor rod body from the surrounding rock-soil mass, which is mainly due to insufficient pullout resistance.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the defects and shortcomings in the prior art, the invention provides the mountain building anti-pulling steel pipe anchor rod which is convenient to install and construct, the anti-pulling component rotates in a fixed axis mode by taking a steel pipe bolt as an axis and taking a pipe wall as a fulcrum, and in the anti-pulling stress process of the anti-pulling component, the anti-pulling component can rotate outwards by taking the pipe wall as the fulcrum, so that the contact area with the surrounding soil body is increased, the anti-pulling force of the anchor rod is further increased, the stability of a side slope is improved, and the anchor rod can be produced in batches.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses a mountain building anti-pulling steel pipe anchor rod, which comprises an anchor rod end, an anchor rod body and an anchor head, wherein the anchor rod end is provided with a grout stop plug, one side of the grout stop plug is connected with an end plate, and the surface of the end plate is provided with end part connecting bolts at intervals;
the anchor rod comprises an anchor rod body and is characterized in that anchor bolt holes and uplift member holes are formed in the surface of the anchor rod body at intervals, uplift members are arranged inside the uplift member holes, a plurality of groups of uplift members are symmetrically arranged inside the anchor rod body, steel pipe bolts are arranged at intersecting nodes of the uplift members, two ends of each steel pipe bolt penetrate through the anchor bolt holes and are fixedly assembled with the anchor rod body, and the uplift members rotate in a fixed axis mode by taking the steel pipe bolts as axes and taking pipe walls as fulcrums.
Further, the tip of the anchor head is of a conical structure.
Furthermore, the anti-pulling component adopts a strip-shaped structure with a rectangular cross section.
Furthermore, the anchor bolt holes and the uplift member holes are alternately arranged on the surface of the anchor rod body.
Furthermore, the included angle between the part of the anti-pulling component outside the pipe wall and the horizontal plane is more than 15 degrees.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the anti-pulling device is convenient to install and construct, the anti-pulling component rotates in a fixed axis mode by taking the steel pipe bolt as an axis and taking the pipe wall as a fulcrum, the anti-pulling component rotates outwards by taking the pipe wall as the fulcrum in the anti-pulling stress process of the anti-pulling component, so that the contact area between the anti-pulling component and the peripheral soil body is increased, the peripheral anti-pulling component extends outwards like a barb, the anti-pulling force of the anchor rod is further increased, the stability of the side slope is improved, and the anti-pulling device can be produced in a factory in batch mode.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a view showing the construction of a grout stopper of the present invention;
FIG. 3 is a partial block diagram of the present invention;
FIG. 4 is a cross-sectional view of a pull-out resistant member of the present invention;
FIG. 5 is a block diagram of FIG. 1 at A in accordance with the present invention;
FIG. 6 is a developed effect diagram at A of FIG. 1 according to the present invention.
In the figure: 1. an end connecting bolt; 2. an end plate; 3. a grout stopping plug; 4. an anchor bolt hole; 5. an anti-pullout member hole; 6. an anti-plucking member; 7. a steel pipe bolt; 8. an anchor rod end; 9. an anchor rod body; 10. an anchor head.
Detailed Description
The invention is further described with reference to the following figures and examples:
example 1
As can be seen from fig. 1-4, the mountain building uplift steel pipe anchor rod of this embodiment includes anchor rod end 8, anchor rod body 9 and anchor head 10, and the pointed end of anchor head 10 is conical structure, and anchor rod end 8 is provided with only thick liquid stopper 3, and the one side of only thick liquid stopper 3 is connected with end plate 2, and the surface interval of end plate 2 is provided with end connection bolt 1, and end plate 2 is connected with the superstructure through end connection bolt 1.
The surface of the anchor rod body 9 is provided with anchor bolt holes 4 and anti-pulling member holes 5 at intervals, anti-pulling members 6 are arranged inside the anti-pulling member holes 5, a plurality of groups of anti-pulling members 6 are symmetrically arranged inside the anchor rod body 9, steel pipe bolts 7 are arranged at the intersection nodes of the anti-pulling members 6, two ends of each steel pipe bolt 7 penetrate through the anchor bolt holes 4 and are fixedly assembled with the anchor rod body 9, the anti-pulling members 6 take the steel pipe bolts 7 as axes, the pipe wall is used as a fulcrum to perform fixed-axis rotation, the anti-pulling member 6 is of a long-strip-shaped structure with a rectangular cross section, the anti-pulling member is effectively prevented from rotating left and right, the included angle between the part, outside the pipe wall, of the anti-pulling member 6 and the horizontal plane is larger than 15 degrees, the anti-pulling member 6 can be placed into the anti-pulling member from the rectangular hole of the pipe wall 5, the anchor bolt holes 4 and the anti-pulling member holes 5 are alternately arranged on the surface of the anchor rod body 9, and the included angle between the section and the anti-pulling member 6 of the anchor rod with the adjacent section is 90 degrees.
As can be seen from fig. 5, when the integral device is placed in a drilled hole, the anti-pulling member 6 in the anchor rod body 9 rotates under the pipe wall fulcrum when touching the periphery of the hole, so that the outer part of the pipe wall of the anti-pulling member 6 is close to the pipe wall, the flaring radius of the anti-pulling member 6 is reduced, and the whole anti-pulling steel pipe anchor rod can easily enter the hole.
As can be seen from fig. 6, in the concrete pouring process, the uplift member 6 is expanded by using the pipe wall as a fulcrum under the action of the concrete, the radius of the expansion range of the uplift member 6 is enlarged, and the uplift member and the concrete and the surrounding rock-soil body in a larger range around the steel pipe form a united body, so that the uplift force of the steel pipe anchor rod is increased, and meanwhile, when the uplift steel pipe is subjected to tensile force, the surrounding uplift member 6 extends outwards further like a barb, the contact area between the surrounding uplift member and the surrounding rock-soil body is increased, and the uplift force of the anchor rod is further increased.
In the process that the anchor rod is driven into the hole, the anti-pulling member 6 rotates by taking the pipe wall as a fulcrum, the anti-pulling member 6 in the pipe wall is partially blocked by the pipe wall in the other side due to rotation, so that the anti-pulling member 6 is prevented from falling into the pipe wall completely, in the anti-pulling stress process of the anti-pulling member 6, the anti-pulling member 6 rotates outwards by taking the pipe wall as the fulcrum, so that the contact area with the peripheral soil body is increased, the pipe wall on the same side and the steel pipe bolt 7 in the middle can be used as a stress fulcrum of the anti-pulling member 6, the included angle between the outer part of the pipe wall of the anti-pulling structure and the horizontal plane is always larger than 15 degrees, and the anti-pulling member cannot turn to be below the horizontal plane.
The anti-pulling anchor rod is convenient to install and construct, the anti-pulling member 6 rotates in a fixed axis mode by taking the steel pipe bolt 7 as an axis and taking the pipe wall as a fulcrum, the anti-pulling member 6 rotates outwards by taking the pipe wall as the fulcrum in the anti-pulling stress process of the anti-pulling member 6, so that the contact area with the peripheral soil body is increased, the peripheral anti-pulling member 6 extends outwards like a barb, the anti-pulling force of the anchor rod is further increased, the stability of a side slope is improved, and the anti-pulling anchor rod can be produced in a factory in batch mode.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (5)
1. The utility model provides a mountain region building resistance to plucking steel pipe stock, includes stock end (8), the stock body (9) and anchor head (10), its characterized in that: the anchor rod end (8) is provided with a grout stop plug (3), one side of the grout stop plug (3) is connected with an end plate (2), and end connecting bolts (1) are arranged on the surface of the end plate (2) at intervals;
the anchor rod structure is characterized in that anchor bolt holes (4) and uplift member holes (5) are formed in the surface of the anchor rod body (9) at intervals, uplift members (6) are arranged in the uplift member holes (5), a plurality of groups of uplift members (6) are symmetrically arranged in the anchor rod body (9), steel pipe bolts (7) are arranged at intersecting nodes of the uplift members (6), two ends of each steel pipe bolt (7) penetrate through the anchor bolt holes (4) and are fixedly assembled with the anchor rod body (9), and the uplift members (6) rotate around fixed shafts by taking the steel pipe bolts (7) as axes and the pipe walls as fulcrums.
2. The mountain building uplift steel pipe anchor rod as claimed in claim 1, wherein: the tip of the anchor head (10) is of a conical structure.
3. The mountain building uplift steel pipe anchor rod as claimed in claim 1, wherein: the anti-pulling component (6) is of a strip-shaped structure with a rectangular cross section.
4. The mountain building uplift steel pipe anchor rod as claimed in claim 1, wherein: the anchor bolt holes (4) and the uplift component holes (5) are alternately arranged on the surface of the anchor rod body (9).
5. The mountain building uplift steel pipe anchor rod as claimed in claim 1, wherein: the included angle between the part of the anti-pulling component (6) outside the pipe wall and the horizontal plane is more than 15 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331679.8A CN111455995B (en) | 2020-04-24 | 2020-04-24 | Mountain region building resistance to plucking steel pipe stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331679.8A CN111455995B (en) | 2020-04-24 | 2020-04-24 | Mountain region building resistance to plucking steel pipe stock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111455995A CN111455995A (en) | 2020-07-28 |
| CN111455995B true CN111455995B (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010331679.8A Active CN111455995B (en) | 2020-04-24 | 2020-04-24 | Mountain region building resistance to plucking steel pipe stock |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115354655B (en) * | 2022-01-20 | 2024-02-27 | 河南省地质矿产勘查开发局第四地质矿产调查院 | Anchoring device for preventing landslide geological disasters |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2066492U (en) * | 1990-03-21 | 1990-11-28 | 姚开绥 | Anchoring-bolt for shaft-lining protection |
| JP2010077728A (en) * | 2008-09-26 | 2010-04-08 | Shinko Kenzai Ltd | Anchor, anchor fixing device, and method of embedding the anchor |
| CN101806061A (en) * | 2010-03-16 | 2010-08-18 | 合肥工业大学 | Anchorage unit and construction method using same to ream ground anchor |
| CN203320527U (en) * | 2013-07-08 | 2013-12-04 | 山东科技大学 | Pawl type soil anchor rod |
| CN103939120A (en) * | 2014-05-12 | 2014-07-23 | 罗宗帆 | Multi-joint self-expansion anchor rod |
| CN109853558A (en) * | 2019-03-10 | 2019-06-07 | 国网福建省电力有限公司福州供电公司 | A kind of pawl type fast-assembling earth anchor |
| WO2020060212A1 (en) * | 2018-09-21 | 2020-03-26 | 유동식 | Foundation anchor apparatus providing both easy fixing and increased fixing force for post |
-
2020
- 2020-04-24 CN CN202010331679.8A patent/CN111455995B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2066492U (en) * | 1990-03-21 | 1990-11-28 | 姚开绥 | Anchoring-bolt for shaft-lining protection |
| JP2010077728A (en) * | 2008-09-26 | 2010-04-08 | Shinko Kenzai Ltd | Anchor, anchor fixing device, and method of embedding the anchor |
| CN101806061A (en) * | 2010-03-16 | 2010-08-18 | 合肥工业大学 | Anchorage unit and construction method using same to ream ground anchor |
| CN203320527U (en) * | 2013-07-08 | 2013-12-04 | 山东科技大学 | Pawl type soil anchor rod |
| CN103939120A (en) * | 2014-05-12 | 2014-07-23 | 罗宗帆 | Multi-joint self-expansion anchor rod |
| WO2020060212A1 (en) * | 2018-09-21 | 2020-03-26 | 유동식 | Foundation anchor apparatus providing both easy fixing and increased fixing force for post |
| CN109853558A (en) * | 2019-03-10 | 2019-06-07 | 国网福建省电力有限公司福州供电公司 | A kind of pawl type fast-assembling earth anchor |
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| Publication number | Publication date |
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| CN111455995A (en) | 2020-07-28 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Yalong Inventor after: Yu Daping Inventor after: Qian Yuandi Inventor after: Ding Guihua Inventor after: Li Eryao Inventor before: Zhao Yalong |
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