CN202544883U - Self-boring full thread hollow grouting anchor rod - Google Patents
Self-boring full thread hollow grouting anchor rod Download PDFInfo
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- CN202544883U CN202544883U CN2012201521178U CN201220152117U CN202544883U CN 202544883 U CN202544883 U CN 202544883U CN 2012201521178 U CN2012201521178 U CN 2012201521178U CN 201220152117 U CN201220152117 U CN 201220152117U CN 202544883 U CN202544883 U CN 202544883U
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Abstract
The utility model relates to a self-boring full thread hollow grouting anchor rod, which comprises a hollow rod body, a drill, a grout stop plug and a through hole, wherein the through hole is arranged on the drill, one end of the hollow rod body is connected with the drill via a front thread, the other end of the hollow rod body is sleeved with the grout stop plug, a tray and a pre-tightening nut, the hollow rod is connected with the pre-tightening nut via a rear thread, and a rod body thread and a grout outlet hole are arranged at the middle part of the hollow rod body. By the self-boring full thread hollow grouting anchor rod, the problems that the grouting anchor rod is difficult to be inserted during hole collapse in grouting reinforcement on the traditional weak surrounding rock and a grout stop effect of the ordinary grouting anchor rod is poor are solved.
Description
Technical field
The utility model relates to a kind of grouted anchor bar, and particularly a kind of self-drilling full thread hollow grouting anchor belongs to geotechnical engineering anchoring support technical field.
Background technology
Mine working, chamber, etc. in the underground engineering support process; Especially in the deep wall rock support engineering; Support material such as traditional anchor pole, anchor cable, wire lath, metallic support, sprayed mortar and method can not satisfy requirement of engineering fully, cause part underground passage and chamber gross distortion to destroy.Grouting and reinforcing is a comparatively effectively supporting method of present stage surrounding rock consolidation; The conventional method of grouting and reinforcing is at first holing on the country rock body at present; Then Grouting Pipe or grouted anchor bar are inserted in the boring; Grouting Pipe or grouted anchor bar through hollow inject the reinforcing slurries in country rock, be generally cement paste or chemical pulp.Slurries diffuse to certain limit through wall-rock crack, can the breaking surrounding rock crack be filled after slurries solidify, and effectively increase country rock intensity, have fundamentally improved the country rock self-bearing capacity, guarantee tunnel or chamber safety.But when running into some special loose and soft surrounding rocks; Extremely grow country rock, low-intensity mud stone, water-swellable country rock etc. like the fault belt crack; After the drilling rod in hole of being used for drilling is extracted; Boring is promptly crammed by the grit that is scattered in the boring, very easily occur collapsing hole or plug-hole, and this moment, grouted anchor bar just can't or be difficult to be inserted in the boring.Therefore existing common grouted anchor bar can't use in loose and soft surrounding rock, causes this operating mode surrounding rock supporting difficulty.Chinese patent CN2905900A discloses a kind of self-drilling grouted anchor bar; Comprise stop grouting plug, backing plate, nut, the cannulated threaded pipe of being with pore, the front end of cannulated threaded pipe has a drill bit, but anchor pole is socketed to form by multistage; And stop grouting plug has pore, is difficult for slip casting and ends slurry.
Summary of the invention
The purpose of the utility model is to provide a kind of self-drilling full thread hollow grouting anchor; The problem that grouted anchor bar is difficult to insert when collapsing the hole to solve in the existing weak surrounding rock grouting and reinforcing engineering also further solves the problem that common grouted anchor bar is only starched poor effect simultaneously.The utility model is simple in structure, easy to use, easy to manufacture, cost is reasonable, slip casting is efficient.
The technical scheme that the utility model is taked is:
Self-drilling full thread hollow grouting anchor; Comprise the through hole on hollow lever, drill bit, stop grouting plug, the drill bit; Hollow lever one end links to each other with drill bit through preceding thread; The other end is with stop grouting plug, pallet and pre-load nut, and hollow lever joins through rear thread and pre-load nut, and the mid portion of hollow lever is provided with body of rod screw thread and slurry outlet.
Described stop grouting plug material is a high tensile flexible rubber, is taper.
Described body of rod threaded weld is connected on the hollow lever.
The utility model can save the weak surrounding rock grouting and reinforcing engineering link of punching specially, will punch with grouted anchor bar two procedures to be installed and to unite two into one, and can save time on the one hand, increases work efficiency; Can prevent on the other hand because the difficulty that the hole of collapsing causes grouted anchor bar to be difficult to install; Slurry outlet is beneficial to slip casting simultaneously; The use of pallet makes easy to operate; Stop grouting plug has the good more characteristics of the big more sealing of hole effect of grouting pressure, has solved the problem that grouted anchor bar is difficult to insert when collapsing the hole in the existing weak surrounding rock grouting and reinforcing engineering problem and common grouted anchor bar are only starched poor effect.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Marginal data: 1. hollow lever; 2. body of rod screw thread; 3. drill bit; 4. stop grouting plug; 5. pallet; 6. pre-load nut; 7. preceding thread; 8. rear thread; 9. slurry outlet; 10. through hole.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is explained further details.
As shown in Figure 1; Self-drilling full thread hollow grouting anchor; Comprise the through hole 10 on hollow lever 1, drill bit 3, stop grouting plug 4, the drill bit 3, hollow lever 1 one ends link to each other with drill bit 3 through preceding thread 7, and the other end is with stop grouting plug 4, pallet 5 and pre-load nut 6; And join through rear thread 8 and pre-load nut 6, the mid portion of hollow lever 1 is provided with body of rod screw thread 2 and slurry outlet 9.
For guaranteeing anchoring effect, hollow lever 1 is processed by high-strength hollow steel tube, and steel pipe length, diameter and wall thickness equidimension require to confirm according to reality, process preceding thread 7 and rear thread 8 at the steel pipe two ends respectively.Simultaneously, processing slurry outlet 9 on hollow lever 1.Drill bit 3 is the high tensile metal drill bit, and in the middle of this drill bit through hole 10 is arranged, and crosses slurry when crossing water and slip casting when being used to punch.The material of stop grouting plug 4 is a high tensile flexible rubber, is taper, is sleeved on an end of said hollow lever 1, and this stop grouting plug has the good more characteristics of the big more sealing of hole effect of grouting pressure.Pallet 5 is a metal butterfly pallet, is sleeved on the hollow lever 1, is positioned at the outside of stop grouting plug 4.Pre-load nut 6 is the high tensile metal nut, is positioned at pallet 5 outsides, applies pretightning force for said hollow lever 1 through rear thread 8.
When utilizing this self-drilling full thread hollow grouting anchor in weak surrounding rock, to carry out mortar depositing construction, at first drill bit 3 closely is connected with hollow lever 1 through preceding thread 7, on rear thread 8, installs two pre-load nuts, 6, two pre-load nuts 6 simultaneously and tighten each other.Guarantee that the Grouting Pipe water flowing utilizes jumbolter to carry out this grouted anchor bar is pierced projected depth at the country rock assigned address after smooth and easy, guarantee that stop grouting plug 4 closely contacts with the anchor pole hole wall, reach sealing of hole effect preferably.Lay down for one with the outside in two pre-load nuts 6, on rear thread 8, connect the slip casting controller and connect grouting pump, beginning slip casting.Slurries spread in country rock through the through hole 10 of slurry outlet on the hollow lever 19 and drill bit, and after slip casting stopped a period of time, slurries solidified, and effectively the filling wall-rock crack is reinforced country rock, improves self, guarantees underground passage and chamber safety.
Can know that by technological general knowledge the utility model can be realized through other the embodiment that does not break away from its spirit or essential feature.Therefore, with regard to each side, all just illustrating, is not only.All in the utility model scope or the change that is being equal in the scope of the utility model all comprised by the utility model.
Claims (3)
1. self-drilling full thread hollow grouting anchor; Comprise the through hole on hollow lever, drill bit, stop grouting plug, the drill bit; It is characterized in that hollow lever one end links to each other with drill bit through preceding thread, the other end is with stop grouting plug, pallet and pre-load nut; Hollow lever joins through rear thread and pre-load nut, and the mid portion of hollow lever is provided with body of rod screw thread and slurry outlet.
2. self-drilling full thread hollow grouting anchor according to claim 1 is characterized in that described stop grouting plug material is a high tensile flexible rubber, is taper.
3. self-drilling full thread hollow grouting anchor according to claim 1 is characterized in that described body of rod threaded weld is connected on the hollow lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201521178U CN202544883U (en) | 2012-04-12 | 2012-04-12 | Self-boring full thread hollow grouting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201521178U CN202544883U (en) | 2012-04-12 | 2012-04-12 | Self-boring full thread hollow grouting anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202544883U true CN202544883U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201521178U Expired - Fee Related CN202544883U (en) | 2012-04-12 | 2012-04-12 | Self-boring full thread hollow grouting anchor rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN202544883U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2016092322A1 (en) * | 2014-12-12 | 2016-06-16 | Vasey Alan Gerard | Self-boring anchoring device and method of installing such an anchoring device |
| CN106121695A (en) * | 2016-07-29 | 2016-11-16 | 安徽理工大学 | A kind of self-drilling type swollen shell automatic clamping hollow grouting anchor |
| CN107558470A (en) * | 2017-10-11 | 2018-01-09 | 安徽理工大学 | A kind of new grouted anchor bar and construction method with the adjustable wing |
| CN111004008A (en) * | 2019-11-11 | 2020-04-14 | 河北大白阳金矿有限公司 | Method for reinforcing and reinforcing pre-control roof-pillar method ore pillar |
| CN112922651A (en) * | 2021-04-23 | 2021-06-08 | 辽宁工程技术大学 | Anchor rod supporting process for driving face |
| CN113107561A (en) * | 2021-05-25 | 2021-07-13 | 中国矿业大学 | Self-drilling type combined grouting anchor rod with grout stop plug and suitable for soft rock stratum |
| CN113638758A (en) * | 2021-08-16 | 2021-11-12 | 湖南科技大学 | Grouting anchor rod and anchor rope combined type chamber surrounding rock supporting construction |
-
2012
- 2012-04-12 CN CN2012201521178U patent/CN202544883U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2016092322A1 (en) * | 2014-12-12 | 2016-06-16 | Vasey Alan Gerard | Self-boring anchoring device and method of installing such an anchoring device |
| US10119237B2 (en) | 2014-12-12 | 2018-11-06 | Raptor Anchoring Limited | Self-boring anchoring device and method of installing such an anchoring device |
| CN106121695A (en) * | 2016-07-29 | 2016-11-16 | 安徽理工大学 | A kind of self-drilling type swollen shell automatic clamping hollow grouting anchor |
| CN107558470A (en) * | 2017-10-11 | 2018-01-09 | 安徽理工大学 | A kind of new grouted anchor bar and construction method with the adjustable wing |
| CN111004008A (en) * | 2019-11-11 | 2020-04-14 | 河北大白阳金矿有限公司 | Method for reinforcing and reinforcing pre-control roof-pillar method ore pillar |
| CN111004008B (en) * | 2019-11-11 | 2021-05-07 | 河北大白阳金矿有限公司 | Method for reinforcing and reinforcing pre-control roof-pillar method ore pillar |
| CN112922651A (en) * | 2021-04-23 | 2021-06-08 | 辽宁工程技术大学 | Anchor rod supporting process for driving face |
| CN113107561A (en) * | 2021-05-25 | 2021-07-13 | 中国矿业大学 | Self-drilling type combined grouting anchor rod with grout stop plug and suitable for soft rock stratum |
| CN113107561B (en) * | 2021-05-25 | 2022-02-08 | 中国矿业大学 | Self-drilling type combined grouting anchor rod with grout stop plug and suitable for soft rock stratum |
| CN113638758A (en) * | 2021-08-16 | 2021-11-12 | 湖南科技大学 | Grouting anchor rod and anchor rope combined type chamber surrounding rock supporting construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130412 |