CN210658344U - Anchor rod - Google Patents
Anchor rod Download PDFInfo
- Publication number
- CN210658344U CN210658344U CN201921130032.8U CN201921130032U CN210658344U CN 210658344 U CN210658344 U CN 210658344U CN 201921130032 U CN201921130032 U CN 201921130032U CN 210658344 U CN210658344 U CN 210658344U
- Authority
- CN
- China
- Prior art keywords
- anchoring
- anchoring body
- drill bit
- cavity
- side wall
- 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.)
- Expired - Fee Related
Links
- 238000004873 anchoring Methods 0.000 claims abstract description 67
- 239000011435 rock Substances 0.000 claims 6
- 239000002689 soil Substances 0.000 abstract description 28
- 238000005553 drilling Methods 0.000 abstract description 12
- 238000007569 slipcasting Methods 0.000 abstract description 11
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to the technical field of anchoring equipment for soil nailing walls, and provides an anchor rod, which comprises an anchoring body, wherein the anchoring body is a hollow rod-shaped structure, and a plurality of first grouting holes are formed on the side wall of the anchoring body; the outer side wall of the anchoring body is also provided with a radial anchoring device; the utility model discloses a set up first slip casting hole on hollow anchor body, realized carrying out cartridge and slip casting operation simultaneously in drilling to radial anchoring force between radial anchoring device reinforcing anchor body and the soil body, thereby promoted the holistic anchor power of stock by a wide margin.
Description
Technical Field
The utility model relates to a soil nail wall anchor sets firmly and is equipped with technical field, especially relates to an anchor rod.
Background
At present, in the process of construction of a soil nailing wall, usually, a natural soil body is drilled, an anchor rod is inserted and grouting is carried out in sequence, so that soil nails are arranged, and the soil nails are combined with sprayed concrete, so that the soil nailing wall similar to a gravity retaining wall is formed, the soil pressure behind the wall is resisted, and the stability of an excavation surface is kept.
However, the existing anchor rod has a simple structure, and when the soil nailing wall is constructed, two steps of anchor rod inserting and grouting must be completed first and second, but the two steps of anchor rod inserting and grouting cannot be completed by one step, so that the operation of the process is complicated, especially for drilling holes in soil bodies with soft soil quality, hole collapse phenomenon is easy to occur in drilled holes, and anchor rods and grouting are not easy to place after the hole collapse phenomenon.
Meanwhile, the existing anchor rod provides an anchoring force by cohesive force at the interface of the anchoring body and the soil body, however, because the surface of the anchoring body is generally a smooth structure, when the anchoring body is subjected to an axial force, the radial anchoring force between the anchoring body and the soil body is relatively small, which seriously affects the resistance of the soil nailing wall to the soil pressure at the rear side of the wall body.
Therefore, the existing anchor rod cannot carry out grouting operation while inserting into a drill hole due to simple structure, and has the problem of small radial anchoring force between an anchoring body and a soil body.
Disclosure of Invention
Technical problem to be solved
The utility model aims at providing an anchor rod for solve current anchor rod because of simple structure, and lead to carrying out cartridge and slip casting operation simultaneously in drilling, and there is the less problem of radial anchor power between the anchor body and the soil body.
(II) technical scheme
In order to solve the technical problem, the utility model provides an anchor rod, which comprises an anchoring body, wherein the anchoring body is a hollow rod-shaped structure, and a plurality of first grouting holes are arranged on the side wall of the anchoring body; and the outer side wall of the anchoring body is also provided with a radial anchoring device.
Preferably, in the present invention, one end of the anchoring body is connected to the drill bit.
Preferably, the radial anchoring means of the present invention comprises a knot and/or a helical fin; the plurality of the knots are axially arranged on the outer side wall of the anchoring body, and the spiral fin is spirally wound on the outer side wall of the anchoring body along the axial direction.
Preferably, in the present invention, a cavity is arranged in the knot, and the anchoring body passes through the cavity; and a second grouting hole is formed in the side wall of the cavity, and the cavity is communicated with the inner cavity of the anchoring body through the first grouting hole.
Preferably, the utility model discloses in the knot is the round platform structure, the cavity is established in the round platform structure, the round platform structure is kept away from set up on the bottom surface of drill bit one side the second slip casting hole.
Preferably, in the present invention, the circular truncated cone structure is close to the diameter of the bottom surface on one side of the drill bit is smaller than the diameter of the bottom surface on one side of the drill bit.
Preferably, the utility model discloses in the drill bit is "ten" font drill bit, "ten" font drill bit includes four the same straight set squares, adjacent two the straight set square is arranged perpendicularly each other, four one of them right angle limit of straight set square coincides mutually, and four straight set square assembles for a bit along respective hypotenuse.
(III) technical effects
The utility model provides an anchor rod, through set up first slip casting hole on hollow anchor body, then when inserting the anchor body in the drilling, can pour into cement thick liquid into the inner chamber of anchor body simultaneously, cement thick liquid is through first slip casting hole overflow to in the drilling, so that bond anchor body and the soil body in its outside mutually, and owing to still be equipped with radial anchoring device on anchor body's the lateral wall, when anchor body cartridge in the drilling targets in place, radial anchoring device can be along radially inserting to the earth body around the anchor body, when anchor body axial atress, this axial force can be along radially diffusing in the soil body around, this makes the radial anchoring force between anchor body and the soil body strengthen greatly, thereby the holistic anchoring force of anchor rod has been promoted by a wide margin, it has stronger resistance to its wall body rear side soil pressure to have ensured the soil nail wall.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view structural schematic diagram of a first anchor rod according to an embodiment of the present invention;
fig. 2 is a schematic front view of a second anchor rod according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a first anchor rod according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a bundle end according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a drill according to an embodiment of the present invention.
In the figure: 1-anchoring body, 2-drill bit, 3-first grouting hole, 4-knot, 5-helical fin, 6-cavity and 7-second grouting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, the present embodiment provides an anchor rod, including an anchoring body 1, where the anchoring body 1 is a hollow rod-shaped structure, and a plurality of first grouting holes 3 are formed in a side wall of the anchoring body 1; the outer side wall of the anchoring body 1 is also provided with a radial anchoring device.
As can be seen from the anchor rod shown in fig. 1-3, when a soil nailing wall is constructed by using the anchor rod, only one drilling hole needs to be constructed in advance, and since the first grouting hole 3 is formed in the hollow anchor body 1, when the anchor body 1 is inserted into the drilling hole, cement slurry can be simultaneously injected into the inner cavity of the anchor body 1, and the cement slurry overflows into the drilling hole through the first grouting hole 3, so that the anchor body 1 is bonded with a soil body outside the anchor body 1; meanwhile, as the radial anchoring device is arranged on the outer side wall of the anchoring body 1 and can select the stop structure arranged along the radial direction of the anchoring body 1, when the anchoring body 1 is inserted in a drill hole in place, the radial anchoring device can be radially inserted into the soil around the anchoring body 1, and when the anchoring body 1 is axially stressed, the axial force can be radially diffused into the surrounding soil, so that the radial anchoring force between the anchoring body 1 and the soil is greatly enhanced, and the integral anchoring force of the anchor rod is greatly improved.
Further, in order to facilitate the anchor rod to drill in the borehole, the head end of the anchor body 1 is connected with a drill bit 2 in the present embodiment.
Further, in order to enhance the radial anchoring force of the anchor rod, the present embodiment provides a radial anchoring device including a plurality of knots 4 and/or helical fins 5, which is disposed on the anchoring body 1, wherein on one hand, a plurality of knots 4 disposed along the axial direction are disposed on the outer sidewall of the anchoring body 1, and the plurality of knots 4 may be arranged at equal intervals along the axial direction, so as to ensure the uniformity of the force applied to the anchor rod and further ensure the anchoring force of the anchor rod; on the other hand, the spiral fin 5 is spirally wound on the outer side wall of the anchoring body 1 along the axial direction, and the spiral fin 5 not only facilitates the enhancement of the radial anchoring force of the anchor rod, but also facilitates the propulsion of the anchor rod in the drilled hole.
Further, referring to fig. 3, in the present embodiment, a cavity 6 is provided in the knot 4, and the anchor 1 passes through the cavity 6; and a second grouting hole 7 is formed in the side wall of the cavity 6, and the cavity 6 is communicated with the inner cavity of the anchoring body 1 through the first grouting hole 3.
Specifically, through set up cavity 6 in tieing 4 to set up second slip casting hole 7 on cavity 6, make tieing 4 can not cause the influence to the normal slip casting process operation of stock, further ensured the radial anchoring power through tieing 4 reinforcing stock.
Further, refer to fig. 4, the knot 4 is the round platform structure in this embodiment, and cavity 6 is established in the round platform structure, and the round platform structure is kept away from and is seted up second slip casting hole 7 on the bottom surface of drill bit 2 one side to through carrying out optimal configuration to the position of second slip casting hole 7, effectively prevented the stock at the in-process of drilling interpolation dress, the earth in the drilling causes the jam to second slip casting hole 7.
Further, the diameter of the bottom surface of the circular platform structure on the side close to the drill bit 2 is smaller than that on the side far away from the drill bit 2, so that the bundle 4 can be fed well in the drilled hole.
Further, in order to facilitate the smooth drilling of the anchor rod in the drilled hole, the drill bit 2 is designed to be a cross-shaped drill bit in the embodiment, referring to fig. 5, the cross-shaped drill bit comprises four identical straight triangular plates which can be machined by steel plates, two adjacent straight triangular plates are vertically arranged, one of the right-angled sides of the four straight triangular plates is overlapped, and the four straight triangular plates are converged into a point along the respective bevel edge.
It should be noted here that in order to ensure the smooth movement of the anchor rod in the borehole
Advantageously, the maximum diameter of both the bundle 4 and the helical fins 5 should be less than the bore diameter of the bore.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. An anchor rod comprises an anchoring body and is characterized in that,
the anchoring body is of a hollow rod-shaped structure, and a plurality of first grouting holes are formed in the side wall of the anchoring body;
and the outer side wall of the anchoring body is also provided with a radial anchoring device.
2. A rock bolt according to claim 1,
one end of the anchoring body is connected with a drill bit.
3. A rock bolt according to claim 2,
the radial anchoring means comprise a knot and/or a helical fin;
the plurality of the knots are axially arranged on the outer side wall of the anchoring body, and the spiral fin is spirally wound on the outer side wall of the anchoring body along the axial direction.
4. A rock bolt according to claim 3,
a cavity is arranged in the bunch, and the anchoring body penetrates through the cavity;
and a second grouting hole is formed in the side wall of the cavity, and the cavity is communicated with the inner cavity of the anchoring body through the first grouting hole.
5. A rock bolt according to claim 4,
the binding end is of a round platform structure, the cavity is arranged in the round platform structure, and the bottom surface of one side, far away from the drill bit, of the round platform structure is provided with the second grouting hole.
6. A rock bolt according to claim 5,
the diameter of the bottom surface of the round platform structure close to one side of the drill bit is smaller than the diameter of the bottom surface of the round platform structure far away from one side of the drill bit.
7. A rock bolt according to claim 2,
the drill bit is a cross-shaped drill bit which comprises four identical straight triangular plates, every two adjacent straight triangular plates are vertically arranged, one of right-angle sides of the four straight triangular plates is overlapped, and the four straight triangular plates are converged into one point along the respective bevel edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921130032.8U CN210658344U (en) | 2019-07-18 | 2019-07-18 | Anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921130032.8U CN210658344U (en) | 2019-07-18 | 2019-07-18 | Anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210658344U true CN210658344U (en) | 2020-06-02 |
Family
ID=70840679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921130032.8U Expired - Fee Related CN210658344U (en) | 2019-07-18 | 2019-07-18 | Anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210658344U (en) |
-
2019
- 2019-07-18 CN CN201921130032.8U patent/CN210658344U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 |