CN202596756U - Shell-expanding high-strength grouting bolt - Google Patents

Shell-expanding high-strength grouting bolt Download PDF

Info

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
Authority
CN
China
Prior art keywords
shell
sleeve pipe
pallet
hollow bolt
taper
Prior art date
Application number
CN 201220028822
Other languages
Chinese (zh)
Inventor
谢理想
赵光明
孟祥瑞
冯磊
程详
潘阳
Original Assignee
谢理想
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 谢理想 filed Critical 谢理想
Priority to CN 201220028822 priority Critical patent/CN202596756U/en
Application granted granted Critical
Publication of CN202596756U publication Critical patent/CN202596756U/en

Links

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

Shell-type high strength grouted anchor bar expands
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).
CN 201220028822 2012-01-01 2012-01-01 Shell-expanding high-strength grouting bolt CN202596756U (en)

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 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 (10)

* Cited by examiner, † Cited by third party
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
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

Cited By (20)

* Cited by examiner, † Cited by third party
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
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
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
CN103343536B (en) * 2013-07-08 2016-05-18 山东科技大学 Pawl type soil bolt 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
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
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
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
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
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
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
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
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
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

Similar Documents

Publication Publication Date Title
CN102937030B (en) Bolting-grouting integrated support method for zonal disintegration of deep roadway surrounding rock
CN108301857B (en) Rock anchor
CN103410161B (en) Oblique control slip casting steel anchor tube framework and construction method thereof
CN101338679B (en) Deep well great section loose wall rock laneway support method
CN103643977A (en) Full-anchor partition pressure transferring grouting anchor rod and application method thereof
CN102505684B (en) Hollow stiffness-core slurry-solidified discrete material pile and construction method thereof
CN205689229U (en) A kind of recyclable pressure-release anchor cable
CN103603675A (en) Supporting method of permeable soft broken rock stratum roadway
CN104500115B (en) A kind of prestressing force Bolt method for protecting support
CN103215952A (en) High polymer anchoring grouting method
CN103603683B (en) Pocket type slip casting anchoring process
CN1460751A (en) Composite pile, combination construction method of composite pile and pile foundation and its application
CN102002947B (en) Explosion expanded internal anchor head prestressed anchor cable for strengthening weak rock and anchoring method thereof
CN203113627U (en) Nodular cast iron grout sleeve for connecting longitudinal steel bars
CN204386614U (en) Realize the lining trolley of lining cutting vault filling and injecting slurry and tunnel lining synchronization implementation
CN205422779U (en) Side direction supports and to let pressure formula slip casting stock
WO2020007055A1 (en) Combined tension and compression yielding and energy-absorbing grouting anchor bolt for large deformation in surrounding rock, and working method
CN201236718Y (en) Inner slip-casting anchor cable
CN201705365U (en) Duct piece structure of shield tunnel through mouth
CN101871353B (en) Method for soft rock roadway grouting and full-length prestress baseboard anchor cable comprehensive support
CN102330427B (en) Stiffening pile with high uplift resistance
CN102644471B (en) Hole sealing machine and hole sealing method using hole sealing machine to perform small aperture grouting for anchoring anchor rope
CN102691514B (en) Multistage sectional grouting-free self-expansion type anchoring rod
CN103485349B (en) Lime nail composite frame prestressed anchor tube structure and construction method for reinforcing weak slope
CN205025479U (en) Administer bottom plate support system of soft rock tunnel pucking

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