CN215718854U - Glass fiber anchor rod mounting device and self-advancing glass fiber anchor rod - Google Patents
Glass fiber anchor rod mounting device and self-advancing glass fiber anchor rod Download PDFInfo
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- CN215718854U CN215718854U CN202120464546.8U CN202120464546U CN215718854U CN 215718854 U CN215718854 U CN 215718854U CN 202120464546 U CN202120464546 U CN 202120464546U CN 215718854 U CN215718854 U CN 215718854U
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- anchor rod
- rod
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Abstract
The utility model relates to a glass fiber anchor rod mounting device and a self-advancing glass fiber anchor rod. The utility model aims to provide a glass fiber anchor rod mounting device and a self-advancing glass fiber anchor rod. The technical scheme of the utility model is as follows: the utility model provides a glass fiber stock installation device which characterized in that: the drilling rod has one detachable drill bit installed in one end, and the other end of the drill rod has screw thread and is provided with clamping part for clamping the end of the glass fiber anchor rod. The drill rod and the drill bit are detachably connected through a circumferential locking mechanism and an axial clamping mechanism. The utility model is suitable for temporary support of underground engineering under complex geological conditions, and is particularly suitable for support of fault zones, broken zones, soft rock and soil body tunnel faces which are difficult to drill.
Description
Technical Field
The utility model relates to a glass fiber anchor rod mounting device and a self-advancing glass fiber anchor rod. The support is suitable for temporary support of underground engineering under complex geological conditions, and is particularly suitable for support of fault zones, broken zones, soft rock and soil body tunnel faces which are difficult to drill.
Background
Under the complex geological condition, drilling holes are difficult to form due to hole collapse, drill blocking and the like, so that the conventional anchor rod is difficult to apply, more time is consumed for supporting and installing, the construction efficiency is influenced, the construction safety is threatened, a better effect is achieved by applying the self-propelled anchor rod, and the construction progress under the complex geological condition is accelerated.
An engineering method for rock-soil controlled deformation analysis construction (ADECO-RS), also called as a 'new idea method', considers that the stability of a tunnel face has great significance on the safety of the tunnel, and can realize the full-section excavation of the tunnel after the tunnel face is supported by applying the 'new idea method' to fault zones, broken zones, soft rocks and soft soil tunnels, thereby being convenient for the application of construction organizations and large-scale construction equipment and improving the construction efficiency.
The glass fiber anchor rod has the characteristics of high longitudinal tensile strength, low shear strength and easy excavation, and can improve the construction efficiency and ensure the construction safety for reinforcing temporary projects such as a tunnel face and the like. The self-advancing metal anchor rod is difficult to dig out and is not suitable for supporting temporary projects such as tunnel faces and the like.
However, for the tunnel face needing to be reinforced by the glass fiber anchor rod, the geological conditions are generally poor, and the phenomenon of difficult hole forming is easy to occur. The installation of the glass fiber anchor rod may consume more time, influence the construction period, and is difficult to exert the advantages of the 'new idea'.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to solve the problems, the utility model provides a glass fiber anchor rod installation device, a self-advancing glass fiber anchor rod and an installation method.
The technical scheme adopted by the utility model is as follows: the utility model provides a glass fiber stock installation device which characterized in that: the drilling rod has one detachable drill bit installed in one end, and the other end of the drill rod has screw thread and is provided with clamping part for clamping the end of the glass fiber anchor rod.
The drill rod and the drill bit are detachably connected through a circumferential locking mechanism and an axial clamping mechanism.
The annular locking mechanism comprises a T-shaped connector which is arranged on the drill bit mounting end of the drill rod and is axially vertical to the drill rod, and a connecting groove which is arranged on the end face of the drill bit mounting end of the drill bit and is matched with the T-shaped connector.
The drill bit is provided with a grouting hole which penetrates through the drill bit along the axial direction of the drill bit.
The axial clamping mechanism comprises a connecting sleeve coaxially arranged on the end face of the drill rod mounting end of the drill bit, a circle of spring buckles are arranged on the inner wall of the connecting sleeve, and semi-elliptical bulges which are arranged on the outer wall of the drill rod mounting end and can be matched with the spring buckles to realize axial locking are arranged on the outer wall of the drill rod mounting end.
The clamping piece is a circle of rubber ring arranged on the outer wall of the connecting sleeve.
The utility model provides a with the cooperation of glass fiber anchor rod installation device is used from advancing formula glass fiber anchor rod which characterized in that: this glass fiber stock internal diameter is greater than the drilling rod diameter, the external diameter is less than the drill bit diameter, glass fiber stock one end system can with joint spare cooperation on the drill bit realizes the fixed joint portion of drill bit and glass fiber stock joint, and the screw thread has been put to the glass fiber stock other end.
And a grouting hole is formed in the body of the glass fiber anchor rod.
The clamping portion is a gradual change opening formed in the inner wall of the end portion of the glass fiber anchor rod, the inner diameter of the gradual change opening is gradually reduced from the end portion of the gradual change opening to the inside, the diameter of the outer end of the gradual change opening is slightly larger than the outer diameter of the rubber ring, and the diameter of the inner end of the gradual change opening is slightly smaller than the outer diameter of the rubber ring.
The installation method of the self-propelled glass fiber anchor rod is characterized in that:
connecting one end of a drill rod with a drill bit, sleeving a glass fiber anchor rod on a rotating rod, and connecting the other end of the drill rod with a drilling machine;
drilling a hole at an engineering position where a glass fiber anchor rod needs to be applied through a drill bit, drilling the glass fiber anchor rod sleeved on a drill rod, and when the outer lengths of the drill rod and the glass fiber anchor rod are less than 20cm, connecting a next drill rod and a next glass fiber anchor rod section through a sleeve matched with threads until the application length meets the supporting requirement;
when the drilling is finished and the glass fiber anchor rod reaches the specified installation position, the drill rod is pulled out of the hole to separate the drill rod from the drill bit, and the drill bit and the end part of the glass fiber anchor rod are connected and fixed in the pulling-out process of the drill rod;
carry out the slip casting through the glass fiber stock, the slip casting hole through the drill bit and the diffusion of cavity glass fiber stock body of rod slip casting hole for the better parcel glass fiber stock body of rod of thick liquid realizes the quick installation of glass fiber stock under the complicated geological conditions.
The utility model has the beneficial effects that: according to the utility model, the drill bit on the glass fiber anchor rod mounting device is detachably mounted on the drill rod, the drill bit is provided with the clamping piece, the drill rod and the drill bit can be separated after drilling is completed, the drill bit and the end part of the glass fiber anchor rod are fixed, and the rubber ring between the drill bit and the glass fiber anchor rod achieves a pressure-lifting effect during subsequent grouting.
According to the utility model, the glass fiber anchor rod is sleeved on the drill rod, and the glass fiber anchor rod can be quickly installed in the drill hole after the drill bit is drilled to form the drill hole, so that the construction efficiency is improved, and the construction safety is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
FIG. 2 is a schematic structural diagram of a drill bit portion in an embodiment.
Fig. 3 is a schematic structural view of the drill rod in the embodiment.
FIG. 4 is a schematic view showing the connection of the drill bit to the drill rod in the embodiment.
1. A drill stem; 2. a glass fiber anchor rod; 3. a drill bit; 4. a rubber ring; 5. a T-shaped connector; 6. a semi-elliptical protrusion; 7. a spring buckle; 8. and (4) grouting holes.
Detailed Description
The embodiment is a glass fiber anchor rod installation method for quickly installing a glass fiber anchor rod, and a glass fiber anchor rod installation device is adopted for installation.
The glass fiber anchor rod mounting device comprises a drilling machine, a drill rod and a drill bit, wherein the drill rod is a round rod with the length of 0.5-1.0m, the drill bit is detachably mounted at one end of the drill rod through an annular locking mechanism and an axial clamping mechanism, and threads are arranged at the other end of the drill rod. The threads on the drill rod are convenient for the drill rod to be connected with a drilling machine on one hand, and are convenient for the drill rod to be lengthened on the other hand, and the drill rods are connected through the sleeves, so that the requirements on the supporting length of the glass fiber anchor rod are met.
In this embodiment, the annular locking mechanism includes a T-shaped connector formed on the drill bit mounting end of the drill bit and axially perpendicular to the drill bit, and a connecting groove formed on the end face of the drill bit mounting end of the drill bit and adapted to the T-shaped connector, and the drill bit is inserted into the connecting groove of the drill bit through the T-shaped connector to achieve coaxial connection between the drill bit and the drill bit, so that the drill bit is driven to rotate synchronously when the drill bit rotates.
In the embodiment, the axial line of the drill bit is provided with a grouting hole which penetrates through the drill bit, the grouting hole is communicated with a connecting groove at the end part of the drill bit, so that the grouting is conveniently injected after the drilling is finished, the grout can better wrap the glass fiber anchor rod, and the reinforcing effect is achieved.
The axial clamping mechanism comprises a connecting sleeve coaxially arranged on the end face of the drill rod mounting end of the drill bit, a circle of spring buckle is arranged on the inner wall of the connecting sleeve, a semielliptical bulge capable of being matched with the spring buckle to realize axial locking is arranged on the outer wall of the drill rod mounting end, the drill rod is inserted into the connecting sleeve, and the semielliptical bulge on the drill rod is matched with the spring buckle to realize axial position locking.
In this example, the outer wall of the connecting sleeve is provided with a clamping member which can be matched with the end part of the glass fiber anchor rod to realize clamping, and the clamping member is a circle of rubber ring on the outer wall of the coaxial connecting sleeve.
In the embodiment, the length of the glass fiber anchor rod is matched with that of the drill rod, the glass fiber anchor rod is of a hollow structure with the length of 0.5-1.0m, the inner diameter of the glass fiber anchor rod is slightly larger than the outer diameter of the connecting sleeve, and the glass fiber anchor rod can be embedded outside the drill rod. The fixed joint portion of drill bit and glass fiber anchor rod joint is realized in the cooperation of the rubber ring system on the glass fiber anchor rod one end ability and the drill bit, and the screw thread has been put to the glass fiber anchor rod other end, and the screw thread is convenient for the extension of cavity glass fiber anchor rod, through many glass fiber anchor rods of muffjoint, the requirement of length is strutted in the adaptation.
In order to avoid the blockage of the grouting hole of the drill bit or other conditions, the grouting hole can be arranged on the body of the glass fiber anchor rod, so that the grouting effect is achieved.
The joint portion is the gradual change opening of making on this glass fiber stock tip inner wall in this embodiment, and this gradual change open-ended internal diameter is followed glass fiber stock tip and is inwards reduced gradually, and gradual change open-ended outer end diameter slightly is greater than the rubber ring external diameter, and gradual change open-ended inner diameter slightly is less than the rubber ring external diameter.
The concrete installation method of the glass fiber anchor rod in the embodiment is as follows:
taking 1 drill rod, inserting the drill rod into a connecting sleeve of a drill bit until a T-shaped connector on the drill rod is inserted into a connecting groove on the drill bit and a semi-elliptical bulge on the drill rod is in snap fit with a spring in the connecting sleeve to realize clamping and fixing;
sleeving a hollow glass fiber anchor rod on a drill rod;
connecting the drill rod with a drilling machine;
drilling at an engineering position where a glass fiber anchor rod needs to be applied, and drilling the connected self-propelled hollow glass fiber anchor rod;
when the length of the drill rod or the glass fiber anchor rod outside the drill hole is less than 20cm, the next drill rod and the next glass fiber anchor rod section are connected through the sleeve until the applied length meets the supporting requirement;
when drilling is completed and the glass fiber anchor rod reaches a specified installation position, the drill rod is axially and outwards pulled away from the drill rod so that the drill rod is separated from the drill bit, meanwhile, the drill bit and the glass fiber anchor rod are clamped through the gradual change opening matched with the rubber ring in the pulling away process of the drill rod, and the rubber ring achieves the effect of pressure rise in the subsequent grouting process;
the grouting is carried out through the hollow glass fiber anchor rod, and the grouting holes of the drill bit and the grouting holes of the glass fiber anchor rod body are used for diffusion, so that the slurry can be wrapped on the rod body well, and the glass fiber anchor rod can be installed quickly under the complex geological condition.
Claims (7)
1. The utility model provides a glass fiber stock installation device which characterized in that: the drill rod is provided with a drill bit, one end of the drill rod is detachably provided with a screw thread, and the drill rod and the drill bit are detachably connected through a circumferential locking mechanism and an axial clamping mechanism; the axial clamping mechanism comprises a connecting sleeve coaxially arranged on the end surface of the drill rod mounting end of the drill bit; the drill bit is provided with a clamping piece which can be clamped with the end part of the glass fiber anchor rod, and the clamping piece is a rubber ring which is made into a circle on the outer wall of the connecting sleeve.
2. A glass fibre anchor rod installation device according to claim 1, wherein: the annular locking mechanism comprises a T-shaped connector which is arranged on the drill bit mounting end of the drill rod and is axially vertical to the drill rod, and a connecting groove which is arranged on the end face of the drill bit mounting end of the drill bit and is matched with the T-shaped connector.
3. A glass fibre anchor rod installation device according to claim 2, wherein: the drill bit is provided with a grouting hole which penetrates through the drill bit along the axial direction of the drill bit.
4. A glass fibre anchor rod installation device according to claim 1, wherein: the inner wall of the connecting sleeve is provided with a circle of spring buckle and a semi-elliptical bulge which is arranged on the outer wall of the drill bit mounting end of the drill rod and can be matched with the spring buckle to realize axial locking.
5. A self-advancing fiberglass bolt for use with a fiberglass bolt mounting apparatus as claimed in any one of claims 1 to 4, wherein: this glass fiber stock internal diameter is greater than the drilling rod diameter, the external diameter is less than the drill bit diameter, glass fiber stock one end system can with joint spare cooperation on the drill bit realizes the fixed joint portion of drill bit and glass fiber stock joint, and the screw thread has been put to the glass fiber stock other end.
6. The self-advancing fiberglass bolt of claim 5, wherein: and a grouting hole is formed in the body of the glass fiber anchor rod.
7. The self-advancing fiberglass bolt of claim 5, wherein: the clamping portion is a gradual change opening formed in the inner wall of the end portion of the glass fiber anchor rod, the inner diameter of the gradual change opening is gradually reduced from the end portion of the gradual change opening to the inside, the diameter of the outer end of the gradual change opening is larger than the outer diameter of the rubber ring, and the diameter of the inner end of the gradual change opening is smaller than the outer diameter of the rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464546.8U CN215718854U (en) | 2021-03-04 | 2021-03-04 | Glass fiber anchor rod mounting device and self-advancing glass fiber anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464546.8U CN215718854U (en) | 2021-03-04 | 2021-03-04 | Glass fiber anchor rod mounting device and self-advancing glass fiber anchor rod |
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| CN215718854U true CN215718854U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120464546.8U Active CN215718854U (en) | 2021-03-04 | 2021-03-04 | Glass fiber anchor rod mounting device and self-advancing glass fiber anchor rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832833A (en) * | 2021-03-04 | 2021-05-25 | 中国电建集团华东勘测设计研究院有限公司 | Fiberglass bolt installation device, self-propelled fiberglass bolt and installation method |
-
2021
- 2021-03-04 CN CN202120464546.8U patent/CN215718854U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832833A (en) * | 2021-03-04 | 2021-05-25 | 中国电建集团华东勘测设计研究院有限公司 | Fiberglass bolt installation device, self-propelled fiberglass bolt and installation method |
| CN112832833B (en) * | 2021-03-04 | 2025-07-25 | 中国电建集团华东勘测设计研究院有限公司 | Glass fiber anchor rod installation device, self-advancing glass fiber anchor rod and installation method |
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