CN202596756U - Shell-expanding high-strength grouting bolt - Google Patents
Shell-expanding high-strength grouting bolt Download PDFInfo
- Publication number
- CN202596756U CN202596756U CN 201220028822 CN201220028822U CN202596756U CN 202596756 U CN202596756 U CN 202596756U CN 201220028822 CN201220028822 CN 201220028822 CN 201220028822 U CN201220028822 U CN 201220028822U CN 202596756 U CN202596756 U CN 202596756U
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- bolt body
- shell
- sleeve pipe
- pallet
- hollow bolt
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Abstract
The utility model discloses a shell-expanding high-strength grouting bolt which is composed of a bolt body, a fastening nut, a gasket, a pallet, a casing pipe, expansion shell teeth and a taper inverted wedge, wherein the fastening nut, the gasket, the pallet, the casing pipe, the expansion shell teeth and the taper inverted wedge are disposed in turn on the hollow bolt body. The shell-expanding high-strength grouting bolt can simultaneously provide a mechanical anchoring force and a chemical anchoring force at an anchoring end, and can help enhance tensile strength and bearing capability for a free end of the hollow bolt body by combination of the double pipes (which are the bolt body and the casing pipe). The shell-expanding high-strength grouting bolt can provide a very high anchoring force, has the advantages of being high in tensile strength and strong in bearing capability, and can be widely applied to mine roadway support.
Description
Technical field
The utility model belongs to geotechnical engineering anchoring support technical field, and the utility model is a kind of bloated shell-type high strength grouted anchor bar, is specifically related to the supporting of aspects such as underground construction, mining engineering.
Background technology
The engineering reinforcement of aspects such as the underground construction that relates in the geotechnical engineering field, mining engineering needs to adopt bolt support.Bolt support is with stratum consolidation through modes such as close between the injecting cement paste around anchor pole and the anchor pole and the stratum combine; Be used for improving the globality on stratum; Play mechanical functions such as shearing resistance, tension, resistance to compression, thereby can effectively control the distortion and the stability on stratum.
At present the kind of anchor pole is a lot, but ubiquity problem, and the subject matter that bolt support at present exists is that anchor-holding force of anchor bolt is not enough, body of rod tensile strength and supporting capacity are low etc.For example; The tensile strength of fried dough twist formula grouted anchor bar and pipe seam anchor bar and bearing capacity are all lower; Though the vertical rib screw-thread steel formula grouted anchor bar of existing nothing has solved tensile strength and the lower problem of bearing capacity,, in petrosal foramen, to put into slip casting anchoring agent earlier; By the time can tray and pretension after anchor pole is solidified in slip casting anchoring agent, thus limited the speed of application of bolt support.
Summary of the invention
Problems such as the anchored force that above-mentioned anchor pole exists is not enough in order to solve, tensile strength and supporting capacity are low design a kind of bloated shell-type high strength grouted anchor bar.
The utility model shell-type high strength grouted anchor bar that expands, it falls wedge and pad by hollow bolt body, clamp nut, pallet, sleeve pipe, expansion tooth, taper and forms.Clamp nut, pad, pallet, sleeve pipe, expansion tooth and taper are housed from the afterbody to the end on the said hollow bolt body successively fall wedge; Said hollow bolt body two ends are provided with external screw thread, and the taper that has a female thread structure is fallen the external screw thread of wedge through helicitic texture and hollow bolt body and tightened together; Said expansion tooth front end has 3 seams, and the rear end is provided with boss structure, and 3 seams are mutually 120 °; The expansion tooth is connected through helicitic texture with sleeve pipe; And welding, pallet promote sleeve pipe makes the expansion teeth directional move right, and the tooth that expands this moment can open tooth under the taper structure function of falling the wedged cone shaped; Make expansion tooth and hole wall be close together, make for whole anchor pole and add certain mechanical anchor power; Said sleeve pipe has many slurry outlets, and when carrying out the hollow high-pressure slip-casting for the hollow bolt body, the slurries therefrom slurry outlet above the spare anchor body of rod flow in the boring of being beaten, and making whole hollow bolt body and rock mass become one increases the stability of country rock; Said hollow bolt body lower end is provided with clamp nut, pad, pallet, and pad and pallet are fastening through clamp nut.During use, taper is fallen wedge and is fastened on the end of hollow bolt body, the expansion tooth be enclosed within on the hollow bolt body after sleeve pipe is connected, and then overlap top tray, packing ring, clamp nut successively.Earlier promote sleeve pipe with clamp nut and move to the hollow bolt end of body, make expand inboard chamfering and the taper of shell tooth front end fall the conical surface of wedge and be close to, it is identical that the conical surface gradient of wedge is fallen in the gradient of the chamfering of the shell inboard of expanding and taper.After assembling anchor pole according to the method described above; In boring, place slip casting anchoring agent earlier, put whole anchor pole into boring then, anchor pole promotes slip casting and moves to foot of hole; Rely on extruding force upwards to make the slip casting clay fall the groove of wedge and flow to the shell that expands from taper; The limit promotes anchor pole, limit rotation anchor pole, and the mobile and rotation of anchor pole has realized the abundant stirring to the slip casting anchoring agent in the petrosal foramen.Treat that taper falls wedge and shift the boring end onto, tighten clamp nut this moment and make sleeve pipe force to expand shell to strut to be close to hole wall, to play the effect of leading mechanical anchor.
The good effect that the bloated shell-type high strength grouted anchor bar of the utility model has is: can become mechanical anchor power through the hull shape that expands after anchor pole is installed; The chemical anchoring power that hardening of resin forms; Through mechanical anchor and chemical anchoring, the effect of dual anchoring overcomes the hypodynamic shortcoming of anchoring; Can pass through hollow slip casting, make sleeve pipe and anchor bar body and on every side the stratum become one, two-tube cooperation has increased the tensile strength and the supporting capacity of anchor pole.This shows that it is big that the high strength grouted anchor bar has anchored force, therefore the advantage that tensile strength and supporting capacity are big has improved the supporting intensity and the compliance of bolt support.
Description of drawings
Fig. 1 is the bloated shell-type high strength grouted anchor bar front view of utility model;
Fig. 2 is the structure chart of bloated shell tooth (6);
Fig. 3 is that the right view of wedge (7) is fallen in taper.
The specific embodiment
The shell-type high strength grouted anchor bar that expands comprises hollow bolt body (1), clamp nut (2), pallet (3), sleeve pipe (4), the shell tooth (6) that expands, taper and falls wedge (7), packing ring (8).Hollow bolt body (1) has pulp slurry outlet (5) on the body of rod, be threaded (11) at the two ends of the body of rod.When carrying out the hollow high-pressure slip-casting for hollow bolt body (1), slurries flow to sleeve pipe (4) by slurry outlet (5), flow to boring (10) by the slurry outlet (5) on the sleeve pipe (4) again, make country rock and whole anchor bar body be connected as a single entity, and increase the globality of fragmented rock body.It is fastening through helicitic texture screw thread (11) that wedge (7) and the hollow bolt body of rod (1) are fallen in taper; Taper is fallen wedge (7) to cone angle is arranged; The angle of chamfering is identical in the gradient of its cone angle and the bloated shell tooth, helps sleeve pipe (4) the shell tooth (4) that promotes to expand and forces the shell that expands to open with hole wall (13) closely to contact., taper also has groove (12) on falling wedge (7); Groove (12) helps accelerating the mixing speed to slip casting anchoring agent on the one hand; Helping slip casting anchoring agent on the other hand falls the end of wedge (7) from taper and flows to expansion tooth (6); Boss structure (14) is arranged on the expansion tooth (6), is in order to stop the outflow of anchoring, to reduce the anchoring effect of anchoring agent.Tailing screw flight (11) is used for connecting the clamp nut (2) that has helicitic texture.Expansion tooth (6) has dentalation; The lower end be threaded with sleeve pipe through being threaded, and weld together, be used for increasing the intensity of junction; The inwall that helps supporting sleeve (4) simultaneously; Making has enough spaces between hollow bolt body (1) and the sleeve pipe (4), thus help slurries therefrom the slurry outlet (5) on the spare anchor body of rod (1) flow into sleeve pipe (4), and the slurry outlet (5) above sleeve pipe (4) flows out to boring (10).
When the assembling anchor pole; Earlier fall the end of wedge (7) device to taper in anchor bar body (1); Link together expansion tooth (6) and sleeve pipe (4) then, be sleeved on the anchor bar body (1), be installed in supporting plate (3), packing ring (8), clamp nut (2) on the hollow bolt body (1) successively subsequently.After installing in proper order according to this; Rotation clamp nut (2); Make packing ring (8), pallet (3), sleeve pipe (4) move to the end of anchor bar body (1); Make chamfering and the taper of expansion tooth (6) fall the conical surface of wedge (7) and closely contact, fall the restriction of wedge (7), can force bloated shell to open because sleeve pipe (4) applies active force and taper to expansion tooth (6).But before not putting anchor pole into boring, bloated shell should be in the state of parting a little open, and prevents that anchor pole from can not put boring into.
During skyhook, flushing boring (10) earlier, into boring (10) is put slip casting anchoring agent in the flushing back; After putting slip casting anchoring agent well, put the anchor pole that assembles in the boring (10) into, wait a slip casting anchoring agent to shift onto at the bottom of the hole after; Rotation anchor bar body (1); And apply certain thrust, and make the anchoring agent under the effect of rotation extrusion power, flow to expansion tooth (6).Treat taper fall wedge (7) shift onto boring the end; Tighten clamp nut (2) and make the thrust of sleeve pipe (4) force expansion tooth (6) to strut to be close to hole wall this moment; Play the effect of leading mechanical anchor; The effect of chemical anchoring can be played when the agent of slip casting anchoring is by the time solidified again, the double dominant of mechanical anchor and chemical anchoring can be played.By the time country rock generation certain deformation, rock cranny reaches full growth, and carry out hollow slip casting through hollow bolt body (1) this moment again; Make anchor bar body and country rock become one; Owing to adopt double pipe structure, increased the tensile strength and the supporting capacity of anchor pole, thereby made country rock have well stabilized property.
Claims (5)
1. bloated shell-type high strength grouted anchor bar; It falls wedge (7) and pad (8) by hollow bolt body (1), clamp nut (2), pallet (3), sleeve pipe (4), expansion tooth (6), taper and forms, and it is characterized by: said hollow bolt body (1) is equipped with clamp nut (2), pad (8), pallet (3), sleeve pipe (4), expansion tooth (6) and taper successively and falls wedge (7) from the afterbody to the end.
2. bloated shell-type high strength grouted anchor bar as claimed in claim 1 is characterized by: said hollow bolt body (1) two ends are provided with external screw thread (11), and the taper that has a female thread structure is fallen wedge and tightened together through helicitic texture and external screw thread (11).
3. bloated shell-type high strength grouted anchor bar as claimed in claim 1; It is characterized by: said expansion tooth (6) front end has 3 seams, and the rear end is provided with boss structure (14), and 3 seams are mutually 120 °; Expansion tooth (6) is connected through helicitic texture with sleeve pipe (4); And welding, pallet (3) promote sleeve pipe (4) makes expansion tooth (6) move right, and the tooth (6) that expands this moment can open tooth under wedge (7) pyramidal structure effect is fallen in taper; Make expansion tooth (6) and hole wall (13) be close together, make for whole anchor pole and add certain mechanical anchor power.
4. like claim 1 or 3 described bloated shell-type high strength grouted anchor bars; It is characterized by: said sleeve pipe (4) has many slurry outlets (5); When carrying out the hollow high-pressure slip-casting for hollow bolt body (1); The slurries therefrom slurry outlet (5) above the spare anchor body of rod (1) flow in the boring (10) of being beaten, and making whole hollow bolt body and rock mass (9) become one increases the stability of country rock.
5. according to claim 1 or claim 2 bloated shell-type high strength grouted anchor bar, it is characterized by: said hollow bolt body (1) lower end is provided with clamp nut (2), pad (8), pallet (3), and pad (8) and pallet (3) are fastening through clamp nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220028822 CN202596756U (en) | 2012-01-01 | 2012-01-01 | Shell-expanding high-strength grouting bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220028822 CN202596756U (en) | 2012-01-01 | 2012-01-01 | Shell-expanding high-strength grouting bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202596756U true CN202596756U (en) | 2012-12-12 |
Family
ID=47314303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220028822 Expired - Fee Related CN202596756U (en) | 2012-01-01 | 2012-01-01 | Shell-expanding high-strength grouting bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202596756U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133026A (en) * | 2013-03-26 | 2013-06-05 | 安徽理工大学 | Novel expansion shell inverted wedge type grouting anchor rod |
| CN103243714A (en) * | 2013-05-28 | 2013-08-14 | 唐山德泰机械制造有限公司 | High-strength pre-stressed anchor rod |
| CN103343536A (en) * | 2013-07-08 | 2013-10-09 | 山东科技大学 | Detent-type soil anchor rod and application thereof |
| CN103557012A (en) * | 2013-11-19 | 2014-02-05 | 河南理工大学 | Large deformation tunnel surrounding rock grouting fastening bearing structure and construction method |
| CN103726861A (en) * | 2014-01-25 | 2014-04-16 | 山东科技大学 | Expandable inverted hook rock-surrounding type anchor rod |
| CN103883339A (en) * | 2014-04-11 | 2014-06-25 | 衢州市优德工业设计有限公司 | Anchor cable supporting method for repeated application of prestress |
| CN105649663A (en) * | 2014-04-11 | 2016-06-08 | 衢州市优德工业设计有限公司 | Anchor cable supporting method capable of exerting prestress repeatedly |
| CN105673054A (en) * | 2014-04-11 | 2016-06-15 | 衢州市优德工业设计有限公司 | Supporting method for anchor rope capable of applying prestress repeatedly |
| CN107355253A (en) * | 2017-08-28 | 2017-11-17 | 湖南科技大学 | A kind of anchor rod system and pumping method for being used for gas pumping and hydrofracturing |
| CN108678789A (en) * | 2018-06-25 | 2018-10-19 | 王运来 | A kind of combined anchor |
| CN108775254A (en) * | 2018-07-06 | 2018-11-09 | 石家庄铁路职业技术学院 | It is a kind of to reinforce the anchor pole for facing combination forever for tunnel structure |
| CN109811765A (en) * | 2019-02-15 | 2019-05-28 | 高骏 | A kind of anchor rod device and its application method |
| CN110821539A (en) * | 2019-11-15 | 2020-02-21 | 山东大学 | Energy-absorbing anchor rod with function of monitoring surrounding rock deformation and construction method thereof |
| CN115288469A (en) * | 2022-01-06 | 2022-11-04 | 浙江科技学院 | Prestressed tailless negative pressure filling grouting anchoring structure and anchoring method for top of stone cave temple |
-
2012
- 2012-01-01 CN CN 201220028822 patent/CN202596756U/en not_active Expired - Fee Related
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133026A (en) * | 2013-03-26 | 2013-06-05 | 安徽理工大学 | Novel expansion shell inverted wedge type grouting anchor rod |
| CN103243714A (en) * | 2013-05-28 | 2013-08-14 | 唐山德泰机械制造有限公司 | High-strength pre-stressed anchor rod |
| CN103243714B (en) * | 2013-05-28 | 2015-06-10 | 唐山德泰机械制造有限公司 | High-strength pre-stressed anchor rod |
| CN103343536B (en) * | 2013-07-08 | 2016-05-18 | 山东科技大学 | Pawl type soil bolt and application thereof |
| CN103343536A (en) * | 2013-07-08 | 2013-10-09 | 山东科技大学 | Detent-type soil anchor rod and application thereof |
| CN103557012A (en) * | 2013-11-19 | 2014-02-05 | 河南理工大学 | Large deformation tunnel surrounding rock grouting fastening bearing structure and construction method |
| CN103557012B (en) * | 2013-11-19 | 2016-07-06 | 河南理工大学 | A kind of roadway with large deformation wall rock grouting fastening carrying structure and construction method |
| CN103726861A (en) * | 2014-01-25 | 2014-04-16 | 山东科技大学 | Expandable inverted hook rock-surrounding type anchor rod |
| CN105673054A (en) * | 2014-04-11 | 2016-06-15 | 衢州市优德工业设计有限公司 | Supporting method for anchor rope capable of applying prestress repeatedly |
| CN105626109B (en) * | 2014-04-11 | 2017-09-15 | 衢州市优德工业设计有限公司 | It is a kind of that there is the method for repeating to apply prestressed cable bolting |
| CN105626109A (en) * | 2014-04-11 | 2016-06-01 | 衢州市优德工业设计有限公司 | Anchor cable support method capable of repeatedly applying prestressing force |
| CN105649663A (en) * | 2014-04-11 | 2016-06-08 | 衢州市优德工业设计有限公司 | Anchor cable supporting method capable of exerting prestress repeatedly |
| CN103883339B (en) * | 2014-04-11 | 2016-03-23 | 衢州市优德工业设计有限公司 | A kind of cable bolting method repeating Shi Hanzhang |
| CN103883339A (en) * | 2014-04-11 | 2014-06-25 | 衢州市优德工业设计有限公司 | Anchor cable supporting method for repeated application of prestress |
| CN105507929B (en) * | 2014-04-11 | 2017-09-01 | 衢州市优德工业设计有限公司 | A kind of method that repetition applies prestressed cable bolting |
| CN105649663B (en) * | 2014-04-11 | 2017-09-15 | 衢州市优德工业设计有限公司 | One kind, which has, to be repeated to apply prestressed cable bolting method |
| CN105673054B (en) * | 2014-04-11 | 2017-09-15 | 衢州市优德工业设计有限公司 | A kind of repetition applies the method for protecting support of prestressed anchor cable |
| CN105507929A (en) * | 2014-04-11 | 2016-04-20 | 衢州市优德工业设计有限公司 | Anchor cable supporting method of repeatedly applying prestress |
| CN107355253A (en) * | 2017-08-28 | 2017-11-17 | 湖南科技大学 | A kind of anchor rod system and pumping method for being used for gas pumping and hydrofracturing |
| CN108678789A (en) * | 2018-06-25 | 2018-10-19 | 王运来 | A kind of combined anchor |
| CN108678789B (en) * | 2018-06-25 | 2024-03-15 | 王运来 | Combined anchor rod |
| CN108775254A (en) * | 2018-07-06 | 2018-11-09 | 石家庄铁路职业技术学院 | It is a kind of to reinforce the anchor pole for facing combination forever for tunnel structure |
| CN109811765A (en) * | 2019-02-15 | 2019-05-28 | 高骏 | A kind of anchor rod device and its application method |
| CN110821539A (en) * | 2019-11-15 | 2020-02-21 | 山东大学 | Energy-absorbing anchor rod with function of monitoring surrounding rock deformation and construction method thereof |
| CN110821539B (en) * | 2019-11-15 | 2021-10-08 | 山东大学 | Energy-absorbing anchor rod with function of monitoring surrounding rock deformation and construction method thereof |
| CN115288469A (en) * | 2022-01-06 | 2022-11-04 | 浙江科技学院 | Prestressed tailless negative pressure filling grouting anchoring structure and anchoring method for top of stone cave temple |
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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: 20121212 Termination date: 20140101 |