CN2240609Y - Self-advance type anchoring-bolt - Google Patents
Self-advance type anchoring-bolt Download PDFInfo
- Publication number
- CN2240609Y CN2240609Y CN 95241631 CN95241631U CN2240609Y CN 2240609 Y CN2240609 Y CN 2240609Y CN 95241631 CN95241631 CN 95241631 CN 95241631 U CN95241631 U CN 95241631U CN 2240609 Y CN2240609 Y CN 2240609Y
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- CN
- China
- Prior art keywords
- rod
- self
- anchoring
- bolt
- utility
- 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
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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a self-advance type anchoring-bolt for construction of underground tunnels with integration of a drill and an anchor. The primary structure of the utility model comprises a bolt body of the anchoring-bolt, a front end anchoring-bolt head, a tail setting plate, and fastening nuts. The utility model is characterized in that the bolt body is a hollow pipe-shaped body, and the anchoring-bolt head is composed of a drill head and a front part grout outlet. The bolt body can be sectionally arranged, the corresponding ends of the middle part of the bolt body are butted through a connecting sleeve thread, and front and back corresponding positioning anchoring devices and a back stop-grouting plug are also sheathed on the bolt body. The utility model has the advantages of high shear strength, anti-collapsing holes, full grout, convenient operation, rapid construction, and good anchoring quality.
Description
The utility model relates to the underground construction apparatus, particularly a kind of subterranean tunnel is executed the self-feeding anchor pile that merit anchoring country rock is used.
Current, the domestic anchor pole of using at construction of underground tunnel is by the body of rod, front end anchor pole head and tail portion's pad and tighten up nut and constitute.Its working procedure is to punch with special-purpose auger earlier, extracts the drilling rod grouting behind shaft or drift lining out, inserts anchor pole at last country rock is carried out anchoring.Has following problem in the anchor pole of this structure and the construction thereof: 1. easily cause the more broken location in the hole of collapsing, particularly country rock particularly serious after drilling rod is extracted out from the hole; 2. slip casting is not full; 3. when anchor rod body was longer, its shear strength was not enough; 4. working procedure is many, speed is slow, and anchoring quality is poor
The purpose of this utility model is that slip casting is full for the shortcoming that overcomes prior art provides a kind of shear strength height, and construction is quick, and easy and simple to handle, the anchoring quality of surrounding rock is good, bores the self-feeding anchor pile of anchor unification.
For achieving the above object, the technical solution adopted in the utility model is to comprise anchor rod body, and front end tightens up the anchor pole head of connection, tail end tighten up nut and backing plate.Be characterized in that the body of rod is a hollow tube, the anchor pole head is the grout outlet of drill bit and anchor pole front end.
According to the construction needs, body of rod sectional is provided with, and middle corresponding end tightens up connection by adapter sleeve.Generally speaking, the body of rod with two sections for well, butt end and adapter sleeve are for being threaded.
When the body of rod was longer, its shear strength was poor, caused body of rod complex, influenced anchoring quality, and this is one of shortcoming of conventional anchor pole existence.For this reason, two corresponding positioning and anchoring devices before and after the utility model is provided with on the body of rod at least are to increase the shear strength of the body of rod.
Above-mentioned anchor is a ring bodies, and the tapped through hole with axis normal is arranged on its body, tightens up with body of rod outer wall by screw to be connected.
In body of rod rear sleeve the trumpet-shaped flexible stop grouting plug of likeness in form is housed,, guarantees that slip casting is full in order to prevent the slurries outflow.
Grout outlet is located at chisel edge, and promptly drill bit is to be provided with the axial hole that front and back communicate along axis, and back stomidium communicates with the body of rod, and front aperture is a grout outlet.Maximum cross-section diameter 〉=the adapter sleeve of drill bit and the diameter of section of positioning and anchoring device.
Accompanying drawing drawing of the present utility model is described as follows:
Fig. 1, Fig. 2: the contour structures view of two embodiment of the utility model
The A-A sectional view of Fig. 3: Fig. 1
The B-B sectional view of Fig. 4: Fig. 2.
The utility model is described in further detail below in conjunction with embodiment (accompanying drawing):
Embodiment 1:
As shown in figures 1 and 3, anchor rod body 3 is hollow tubular bodies, and the front end screw-thread securing is connected with drill bit 2, and the rear end is set with arch backing plate 7 and tightens up nut 8.Drill bit 2 inside are provided with axially extending bore, and back stomidium communicates with the body of rod 3, and front aperture is a grout outlet 1.
Embodiment 2:
As Fig. 2 and shown in Figure 4, the body of rod 3 is two sections, and middle corresponding end is by the butt joint of adapter sleeve 5 screw threads.Identical among front end drill bit 2 and rear end backing plate 7, the shape that tightens up nut 8, structure and connected mode and the embodiment 1.The positioning and anchoring device 4 and the stop grouting plug 6 of correspondence before and after on the body of rod 3, also being provided with simultaneously.Positioning anchor tightens up 4 for ring bodies, is connected by tightening up with the body of rod 3 outer walls with screw with the tapped through hole of axis normal on the body.Stop grouting plug 6 is the trumpet-shaped rubbers of likeness in form, and fixed sleeve is contained in the body of rod 3 rear portions.
The body of rod 3 of the present utility model also is a drilling rod, can hole as long as connect the power set of rig in its back-end.Therefore, working procedure of the present utility model is different from the conventional anchor pole of prior art, at first uses this anchor pole from shot borehole, finish boring after, from the slip casting in the hole of the body of rod 3 tail end mouths country rock is carried out anchoring.
The utility model compared with prior art has the shearing strength height, anti-collapse hole, Slip casting is full, and is easy and simple to handle, the quick and good advantage of anchoring matter of construction.
Claims (6)
1, a kind of self-feeding anchor pile comprises anchor rod body, and the anchor pole head and tail portion that front end is fastenedly connected tightens up nut and backing plate, it is characterized in that the body of rod is a hollow tube, and the anchor pole head is a drill bit, and front end is provided with the grout outlet that communicates with hollow lever.
2, self-feeding anchor pile according to claim 1 is characterized in that the body of rod is two sections, and the middle part corresponding end tightens up butt joint by adapter sleeve and forms.
3, self-feeding anchor pile according to claim 1 and 2 is characterized in that being provided with at least two corresponding positioning and anchoring devices that tighten up connection with it on body of rod outer wall.
4, self-feeding anchor pile according to claim 3 is characterized in that the positioning and anchoring device is a ring bodies, has the tapped through hole with its axis normal on the body.
5, self-feeding anchor pile according to claim 1 is characterized in that at body of rod rear portion fixed sleeve the trumpet-shaped flexible stop grouting plug of likeness in form being housed.
6, want 1 described self-feeding anchor pile according to right, it is characterized in that drill bit is the hollow drill bit that has through hole along its axis, rear port communicates with the body of rod, and front port is a grout outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241631 CN2240609Y (en) | 1995-05-23 | 1995-05-23 | Self-advance type anchoring-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241631 CN2240609Y (en) | 1995-05-23 | 1995-05-23 | Self-advance type anchoring-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2240609Y true CN2240609Y (en) | 1996-11-20 |
Family
ID=33882760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95241631 Expired - Fee Related CN2240609Y (en) | 1995-05-23 | 1995-05-23 | Self-advance type anchoring-bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2240609Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348804C (en) * | 2005-07-08 | 2007-11-14 | 吴德兴 | Multifunction pulp stopping plug for anchor rod and its pulp filling adaptor |
| CN104047625A (en) * | 2013-10-11 | 2014-09-17 | 江苏鼎泰工程材料有限公司 | Reinforcement anchor rod and rock mass reinforcement method applying anchor rod |
| CN106337692A (en) * | 2016-11-25 | 2017-01-18 | 中国矿业大学 | Self-drilling and self-anchoring anchor rod capable of being lengthened and suitable for weak coal rock and anchoring method thereof |
| CN106498922A (en) * | 2016-12-08 | 2017-03-15 | 贵州中钻机械设备有限公司 | A kind of self-drilling anchor is connected female connector |
| CN111364457A (en) * | 2020-03-24 | 2020-07-03 | 中国三冶集团有限公司 | Soil anchor rod self-pore-forming bearing head |
| CN111810207A (en) * | 2020-06-17 | 2020-10-23 | 山东大学 | Drilling and anchoring integrated anchoring device and method |
| CN113202531A (en) * | 2021-06-24 | 2021-08-03 | 江苏国能深井安全开采科技有限公司 | Multi-layer position grading fixed-length grouting device for coal roadway roof under multiple disturbance and anchoring method |
-
1995
- 1995-05-23 CN CN 95241631 patent/CN2240609Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348804C (en) * | 2005-07-08 | 2007-11-14 | 吴德兴 | Multifunction pulp stopping plug for anchor rod and its pulp filling adaptor |
| CN104047625A (en) * | 2013-10-11 | 2014-09-17 | 江苏鼎泰工程材料有限公司 | Reinforcement anchor rod and rock mass reinforcement method applying anchor rod |
| CN104047625B (en) * | 2013-10-11 | 2016-02-17 | 江苏鼎泰工程材料有限公司 | A kind of rock mass reinforcing method of reinforcing anchor pole and applying this anchor pole |
| CN106337692A (en) * | 2016-11-25 | 2017-01-18 | 中国矿业大学 | Self-drilling and self-anchoring anchor rod capable of being lengthened and suitable for weak coal rock and anchoring method thereof |
| CN106337692B (en) * | 2016-11-25 | 2018-08-24 | 中国矿业大学 | It is a kind of be suitable for weak coal petrography from boring from anchor extensible anchor pole and its anchoring process |
| CN106498922A (en) * | 2016-12-08 | 2017-03-15 | 贵州中钻机械设备有限公司 | A kind of self-drilling anchor is connected female connector |
| CN111364457A (en) * | 2020-03-24 | 2020-07-03 | 中国三冶集团有限公司 | Soil anchor rod self-pore-forming bearing head |
| CN111810207A (en) * | 2020-06-17 | 2020-10-23 | 山东大学 | Drilling and anchoring integrated anchoring device and method |
| CN113202531A (en) * | 2021-06-24 | 2021-08-03 | 江苏国能深井安全开采科技有限公司 | Multi-layer position grading fixed-length grouting device for coal roadway roof under multiple disturbance and anchoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |