CN201214788Y - Grouting device under pressure for mortar anchor rod - Google Patents

Grouting device under pressure for mortar anchor rod Download PDF

Info

Publication number
CN201214788Y
CN201214788Y CNU2008200637518U CN200820063751U CN201214788Y CN 201214788 Y CN201214788 Y CN 201214788Y CN U2008200637518 U CNU2008200637518 U CN U2008200637518U CN 200820063751 U CN200820063751 U CN 200820063751U CN 201214788 Y CN201214788 Y CN 201214788Y
Authority
CN
China
Prior art keywords
grouting
tube
plug
pipe
slip casting
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
Application number
CNU2008200637518U
Other languages
Chinese (zh)
Inventor
牛建文
吴航
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU MODERN WANTONG ANCHOR TECHNOLOGY Co Ltd
Original Assignee
CHENGDU MODERN WANTONG ANCHOR TECHNOLOGY Co Ltd
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 CHENGDU MODERN WANTONG ANCHOR TECHNOLOGY Co Ltd filed Critical CHENGDU MODERN WANTONG ANCHOR TECHNOLOGY Co Ltd
Priority to CNU2008200637518U priority Critical patent/CN201214788Y/en
Application granted granted Critical
Publication of CN201214788Y publication Critical patent/CN201214788Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model discloses a stressed grouting device used for a sand pulp roof bolt including a grouting joint which consists of a cylinder, pipes and a hose joint; the pipes are arranged in the inner cavity of the cylinder according to the same axial lead and used for being connected and communicated with the hose joint connected with a grouting pump on the cylinder on the inclined direction; a grouting channel is formed between the outer walls of the pipes and the inner wall of the cylinder; the grouting device also includes a pulp stopping plug which consists of an elastic sleeve sheathed on the front part of the cylinder when grouting and an inner plug; the front part of the sleeve is of a frustum shape and cut seams are uniformly arranged on the sleeve; the shape of the inner plug is matched with the inner cavity shape of the sleeve; the grouting device is also provided with a promoting mechanism which is used for pushing the sleeve to an anchor hole when the grouting is finished. The stressed grouting device has the characteristics of simple structure, being convenient for field assembly, convenient grouting operation, plump and uniform sand pulp as well as good grouting quality.

Description

Grouting rock bolt is with the pressure injection sizing device is arranged
Technical field
The utility model relates to geotechnical engineering anchoring support technical field, especially for anchor pole the pressure injection sizing device arranged, be used for bolt support system to earth formations such as underground engineering, mining engineering, construction of tunnel, side slope foundation ditches.
Background technology
In class geotechnical engineering constructions such as underground construction, mining engineering, construction of tunnel, foundation ditch and slope project, for preventing that the bottom distortion from subsiding or unstability jeopardizes safety, usually adopting bolt support technology to carry out stratum consolidation handles, promptly by being embedded in anchor pole had in the stratum high strength tensile property and being one whole and, make the stratum reach stable state with stratum consolidation by combining closely between injecting cement paste around the anchor pole and the stratum.
Existing grouting rock bolt can be divided into solid anchor pole (referring to the body of rod herein) and hollow bolt two big classes.Solid anchor pole has again and adopts band to help two kinds of reinforcing bar and full thread reinforcing bars (the applicant has submitted related application to).During mortar depositing construction,, generally do not adopt stop grouting plug and filling adaptor, after the interior slip casting of anchor hole (i.e. boring), again anchor pole is inserted in the anchor hole earlier usually solid anchor pole.And for hollow bolt, usually with hollow lever as slurry intake channel, and filling adaptor one end is connected with the hollow lever spiral, be positioned at the outer other end of anchor hole and connect Grouting Pipe and grouting pump, during slip casting, stop grouting plug is enclosed within (outer end of stop grouting plug approximates the anchor hole aperture) on the anchor rod body, when mortar is full of anchor hole, works to stop the mortar outflow.
The mortar depositing construction of above-mentioned solid anchor pole belongs to first slurry injection technique.Because grouting mode is to irritate the back anchor earlier, exists operation easier big, the problem that can't upwards construct; and; have skew anchor hole center phenomenon when anchor bar body inserts, the protective layer thickness that the mortar induration is formed around anchor bar body is inhomogeneous, causes the anchor bar body reinforcing bar to expose corrosion and shorten the life-span.
The mortar depositing construction of above-mentioned hollow bolt belongs to the grouting behind shaft or drift lining technology.The grouting behind shaft or drift lining technology of existing hollow bolt exists one can not guarantee the problem of anchor bar body protective layer thickness even (being that anchor bar body belongs to the anchor hole center) and can not realize pressure injection slurry, the problem that grouting quality has much room for improvement.
That Chinese patent literature discloses is a kind of " a kind of anchor pole with multi-functional stop grouting plug and filling adaptor thereof " (CN100348804C), stop grouting plug is made up of ring, flexible jacket ring and locking member in the hard, with the matching used filling adaptor of stop grouting plug be the hollow circular cylinder that has the side direction inlet pipe.
Its mortar depositing construction process is as follows:
1, the usefulness auger is holed in stratum (rock stratum) and is cleaned boring;
2, will go deep into the hollow bolt body of anchorage head at the bottom of the hole at the scene;
3, ring in the hard of multi-functional stop grouting plug is inserted the flexible jacket ring, multi-functional stop grouting plug is inserted in anchor pole, screw locking member, make closely connected rock stratum, the expansion rear end bearing surface of flexible jacket ring in hell;
4, finish above-mentioned steps after, anchor bar body is carried out slip casting.During slip casting, the front end thin layer that slurries flick the flexible jacket ring enters bolthole, realizes from the anchor rod body outer ring advancing in the hole slurry, slurry is the cavity of full whole bolthole gradually, anchor bar body hollow tube and anchorage head form passage, and air is discharged by body of rod cavity, realize grouting behind shaft or drift lining.When slurries when the anchor pole exposed junction flows out, slip casting is finished.
The problem that air effluxed in the anchor hole when it had solved slip casting has preferably improved slip casting effect, makes the slip casting protective layer thickness even.But exist the stop grouting plug structure complicated, difficulty of processing is big, and cost is higher, and the problem of trouble is installed.
The utility model content
The purpose of this utility model provide a kind of simple in structure, grouting quality good, the uniform grouting rock bolt of mortar induration protective layer thickness is with the pressure injection sizing device is arranged.
This novel purpose is achieved in that a kind of grouting rock bolt is with the pressure injection sizing device is arranged, comprise filling adaptor: form by tube, pipe and hose coupling, pipe is arranged on tube inner chamber by same axial line, be used for that the hose coupling that is connected with grouting pump is oblique to be connected tube and to be communicated with it, formation slip casting passage between pipe outer wall and the inwall; Also has stop grouting plug: be enclosed within tube anterior elastic overcoat and Nei Sai during by slip casting and form; The front portion of overcoat is to be evenly equipped with the otch seam on taper type and its, and the interior empty shape of interior stopper shape and overcoat is suitable; Also have when slip casting finishes as the propulsive mechanism of overcoat being pushed to anchor hole.
Above-mentioned tube is connected to form by the tube and the termination of same caliber, and tube is provided with a spacing shoulder; Pipe is fixed on the opening of termination, and hose coupling is connected (except that stop grouting plug, the whole slip casting rifle that can be described as) on the termination.
This novel grouting behind shaft or drift lining technology that belongs to anchor pole both had been applicable to the mortar depositing construction of solid anchor pole, was applicable to the mortar depositing construction of hollow bolt again.
Its mortar depositing construction process is as follows:
1, the employing auger is holed in the stratum and is cleaned anchor hole;
2, the overcoat with stop grouting plug is enclosed within on the front portion of (slip casting rifle) tube;
3, anchor pole is inserted in the anchor hole, and the slip casting rifle that will load onto the stop grouting plug overcoat passes and exposes the outer anchor pole of anchor hole, inserts the anchor hole mouth;
4, before the slip casting, make the stop grouting plug overcoat be close to anchor hole mouth place, start grouting pump and begin slip casting, mortar between tube, pipe the slip casting passage and outside put open otch seam, enter in the anchor hole, carry out slip casting;
5, for hollow bolt, when carrying out slurry placement in anchor hole, the air in the anchor hole is swung to through the hollow bolt inner chamber and is drawn outside the anchor hole; Thereby, can discharge air in the anchor hole during slip casting smoothly, help improving grouting quality, make slip casting full;
6, during slip casting, mortar puts open otch seam and enters anchor hole outside stop grouting plug, after mortar is full of in the anchor hole, with pushing cylinder the stop grouting plug overcoat is pushed anchor hole, otch seam nature shrinks, simultaneously, plug in the stop grouting plug is inserted in the overcoat, form complete stop grouting plug, in anchor hole under the buffer brake of mortar, the outer otch seam sealing beyond the Great Wall of stop grouting plug makes slip casting full.
This novel beneficial effect is:
1, simple in structure, to be convenient to site assembly, grouting operation convenient, cost of manufacture is low, can reduce construction costs.
2, because anchor pole fixed-site in grouting device; and can not be offset in the grouting operation; simultaneously; because stop grouting plug overcoat packing carries out slip casting on anchor hole, guaranteed that also anchor pole is in the center of mortar induration all the time, therefore; the thickness of the topping that the mortar induration forms around anchor pole is even; can prevent that anchor pole from exposing the corrosion of generation, help prolonging the anchor pole life-span, improve anchorage engineering quality.
3, realize the construction of pressure injection slurry, made slip casting full, improved the anchoring quality of mortar induration.
This novel can being used with hollow bolt can be used with solid anchor pole again, simultaneously, because the problem that air is discharged in the anchor hole when having solved grouting filling, has solved the grouting behind shaft or drift lining problem of anchor pole when anchor pole is upwards installed (comprising downward installation) preferably.
Description of drawings
Fig. 1 is the structure chart of this novel (comprising slip casting rifle and stop grouting plug overcoat);
Fig. 2 Fig. 3 is respectively the front view and the left view of nut shown in Figure 1;
Fig. 4 Fig. 5 is respectively the front view and the left view of centring ring shown in Figure 1;
Fig. 6 is the stereogram of ejector sleeve shown in Figure 1;
Fig. 7 is the stereogram of pipe shown in Figure 1;
Fig. 8 Fig. 9 is respectively the front view and the left view of (stop grouting plug) shown in Figure 1 overcoat;
Figure 10 is the structure chart of plug in (stop grouting plug).
The specific embodiment
Fig. 1 illustrates, the filling adaptor structure is: be made up of tube, pipe 2 and hose coupling 5, pipe 2 is arranged on tube inner chamber by same axial line, is used for that the hose coupling that is connected with grouting pump 5 is oblique to be connected tube and to be communicated with it, manages formation slip casting passage between 2 outer walls and the inwall; Stop grouting plug is enclosed within tube anterior an elastic overcoat 8 (Fig. 8 Fig. 9) and an interior plug 9 (Figure 10) during by slip casting and forms; The front portion of overcoat 8 is to be evenly equipped with otch seam 8a on taper type and its, and the interior hole shape of interior stopper shape and overcoat is suitable; Especially, tube is connected to form by the tube 1 and the termination 4 of same caliber, and tube 1 is provided with a spacing shoulder 1a; Pipe 2 is fixed on the opening 4a of termination 4, and hose coupling 5 is connected on the termination 4.Tube 1 and termination 4 both can be monomer spare, also can be processed as single piece, can adopt between the two to be threaded.When slip casting finishes be: form by being used for ejector sleeve 3 and nut 6 that slip cap is contained on the tube 1 as the propulsive mechanism of pushing overcoat 8 to anchor hole, nut 6 is screwed in ejector sleeve 3 rear ends, the through hole that stretches out for anchor bar body is arranged on the nut 6, spacing shoulder is arranged, on the ejector sleeve 3 to act on mutually with the spacing shoulder 1a of tube 1.Centring ring 7 meets (referring to Fig. 4 Fig. 5) on the through hole that is fixed on nut 6 through the plug welding eyelet welding.
Referring to Fig. 7, radially radially on pipe 2 the outside wall surface be evenly equipped with 4 reinforcing rib 2a.Among Fig. 3, be distributed with the 6b that holes behind plug welding hole 6a and the plug welding centring ring on the nut.Among Fig. 4, have on the centring ring with the nut plug welding after drilling 7a.

Claims (5)

1, a kind of grouting rock bolt is with the pressure injection sizing device is arranged, it is characterized in that: comprise filling adaptor: form by tube, pipe (2) and hose coupling (5), pipe (2) is arranged on tube inner chamber by same axial line, be used for that the hose coupling (5) that is connected with grouting pump is oblique to be connected tube and to be communicated with it, formation slip casting passage between pipe (2) outer wall and the inwall; Also has stop grouting plug: be enclosed within tube anterior elastic overcoat (8) and interior plug (9) during by slip casting and form; The front portion of overcoat (8) is to be evenly equipped with otch seam (8a) on taper type and its, and the interior empty shape of interior stopper shape and overcoat is suitable; Also have when slip casting finishes as the propulsive mechanism of overcoat (8) being pushed to anchor hole.
2, according to the described grouting rock bolt of claim 1 with the pressure injection sizing device is arranged, it is characterized in that: described tube is connected to form by the tube (1) and termination (4) of same caliber, and tin (1) is provided with a spacing shoulder (1a); Pipe (2) is fixed on the opening (4a) of termination (4), and hose coupling (5) is connected on the termination (4).
3, according to the described grouting rock bolt of claim 2 with the pressure injection sizing device is arranged, it is characterized in that: described propulsive mechanism is: be contained in ejector sleeve (3) and the nut (6) of tube on (1) and form by being used for slip cap, nut (6) is screwed in ejector sleeve (3) rear end, the through hole that stretches out for anchor bar body is arranged on the nut (6), the spacing shoulder that acts on mutually with the spacing shoulder of tube (1) is arranged on the ejector sleeve (3).
4, according to the described grouting rock bolt of claim 3 with the pressure injection sizing device is arranged, it is characterized in that: also have centring ring (7), centring ring connects on the through hole that is fixed on nut (6) through the plug welding eyelet welding.
5, according to the described grouting rock bolt of the arbitrary claim of claim 1~4 with the pressure injection sizing device is arranged, it is characterized in that: the radially radial reinforcing rib (2a) that is evenly equipped with on the outside wall surface of described pipe (2).
CNU2008200637518U 2008-06-11 2008-06-11 Grouting device under pressure for mortar anchor rod Expired - Fee Related CN201214788Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200637518U CN201214788Y (en) 2008-06-11 2008-06-11 Grouting device under pressure for mortar anchor rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200637518U CN201214788Y (en) 2008-06-11 2008-06-11 Grouting device under pressure for mortar anchor rod

Publications (1)

Publication Number Publication Date
CN201214788Y true CN201214788Y (en) 2009-04-01

Family

ID=40519995

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200637518U Expired - Fee Related CN201214788Y (en) 2008-06-11 2008-06-11 Grouting device under pressure for mortar anchor rod

Country Status (1)

Country Link
CN (1) CN201214788Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635117A (en) * 2011-02-11 2012-08-15 上海申通地铁集团有限公司 On-off type grouting front end device
CN107676105A (en) * 2016-08-02 2018-02-09 上海力行工程技术发展有限公司 A kind of anti-blocking component of shield machine slip casting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635117A (en) * 2011-02-11 2012-08-15 上海申通地铁集团有限公司 On-off type grouting front end device
CN102635117B (en) * 2011-02-11 2014-11-05 上海申通地铁集团有限公司 On-off type grouting front end device
CN107676105A (en) * 2016-08-02 2018-02-09 上海力行工程技术发展有限公司 A kind of anti-blocking component of shield machine slip casting
CN107676105B (en) * 2016-08-02 2020-01-14 上海力行工程技术发展有限公司 Grouting anti-blocking component of shield tunneling machine

Similar Documents

Publication Publication Date Title
CN104453913B (en) A kind of Shaft Stopes front pre-grouting method
CN1995685B (en) Pile forming mechanism with high-pressure-jet gyro bit and pile forming method
CN101624910B (en) Method for reinforcing concealed tunnel
CN100370081C (en) Shell expand anchorage head and anchor bar
CN201908308U (en) Grouting sleeve valve pipe
CN201924356U (en) Detachable anchor rod
CN107605498A (en) Rich water sand-pebble layer shield tunnel termination horizontal grouting ruggedized construction construction method
CN202416312U (en) Pre-blastable anchor rod with integration of drilling, injecting and anchoring
CN100348804C (en) Multifunction pulp stopping plug for anchor rod and its pulp filling adaptor
CN206448830U (en) A kind of self-advancing type Hollow non-metallic screw thread reinforced resin anchor pole
CN109882223A (en) The method for carrying out segmenting slip casting using grouting cable anchor
CN206092038U (en) Slip casting anchor bar
CN201214788Y (en) Grouting device under pressure for mortar anchor rod
CN206581960U (en) The solid anchoring integral hydraulic expansion anchor pole of mining slip casting
CN206681766U (en) A kind of new winding shape secondary grouting anchor pole
CN101251018B (en) Subsection retrusive slip-casting method for porthole slurry-stop mixed double-pipe
CN207406345U (en) Rich water sand-pebble layer shield tunnel end horizontal grouting ruggedized construction
CN201172823Y (en) Exhausting multiplex anti-corrosive anchor rod
CN102051880B (en) Detachable anchor
CN106193030B (en) A kind of prestressing force grouted anchor bar and construction method with hangnail head
CN210266039U (en) Active ejection type pile end rear grouting valve
JP3851590B2 (en) Preceding ground mountain consolidation method using self-drilling bolt and FRP bolt
CN203430547U (en) Bolting and grouting double-reinforcing mining anchor cable
CN201513182U (en) Broken rock advance curtain grouting double-channel sectional grouting device
CN108386217B (en) A kind of the automatic classification expansion head Pulling-Resistant Anchor Rod and its application method of reinforcing soft rock mass

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: SICHUAN YADONG CEMENT CO., LTD.

Assignor: Chengdu Modern Wantong Anchor Technology Co., Ltd.

Contract fulfillment period: 2009.9.15 to 2014.9.14 contract change

Contract record no.: 2009510000051

Denomination of invention: Grouting device under pressure for mortar anchor rod

Granted publication date: 20090401

License type: Exclusive license

Record date: 2009.9.21

Assignee: SICHUAN YADONG CEMENT CO., LTD.

Assignor: Chengdu Modern Wantong Anchor Technology Co., Ltd.

Contract fulfillment period: 2009.9.15 to 2014.9.14

Contract record no.: 2009510000051

Denomination of utility model: Grouting device under pressure for mortar anchor rod

Granted publication date: 20090401

License type: Exclusive license

Record date: 20090921

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.15 TO 2014.9.14; CHANGE OF CONTRACT

Name of requester: SICHUAN YADONG CEMENT CO., LTD.

Effective date: 20090921

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090401

Termination date: 20150611

Granted publication date: 20090401

Termination date: 20150611

EXPY Termination of patent right or utility model