CN2809009Y - Expansion shell anchor rod for multifunctional stop-grouting plug - Google Patents
Expansion shell anchor rod for multifunctional stop-grouting plug Download PDFInfo
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- CN2809009Y CN2809009Y CN 200520013124 CN200520013124U CN2809009Y CN 2809009 Y CN2809009 Y CN 2809009Y CN 200520013124 CN200520013124 CN 200520013124 CN 200520013124 U CN200520013124 U CN 200520013124U CN 2809009 Y CN2809009 Y CN 2809009Y
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Abstract
The utility model discloses a kind of expansion sleeve bolt with multi-functional stop grouting plug, be made up of bloated shell anchorage head, anchor bar body, stop grouting plug, backing plate, nut, described bloated shell anchorage head is made up of the outer wedge of wedge and bloated shell in the shell that expands; Outer cover of wedge is on interior wedge, and the inner surface of outer wedge and the inner surface of interior wedge are connected; Interior wedge cavity middle part is threaded with bloated shell anchorage head; Encircle, be with the tight latch fitting of longitudinal fluting to form in the hard of described stop grouting plug by flexible outer shroud, band injected hole, flexible outer shroud is installed in the interior horn mouth that encircles of hard and tight latch fitting is closely connected on being enclosed within and encircling in the hard.The utility model anchor pole price is low, cost performance is superior, after the installation, can guarantee that the full anchor pole topping that makes again of slip casting is even, forms support anchoring power rapidly, both can be used as permanent support, can be used as temporary lining again.
Description
Technical field
The utility model belongs to geotechnical engineering anchoring support technical field, relates to a kind of bloated shell anchor pole with multi-functional stop grouting plug of the earth formation supporting of aspects such as being applicable to underground construction, mining engineering, foundation ditch and slope project.
Background technology
In underground construction, mining engineering, foundation ditch and the slope project process that geotechnical engineering relates to, for preventing that stratum deformation from caving in or unstability jeopardizes safety, a kind of main support technology that the stratum is reinforced is to adopt anchor pole.By be arranged on anchor pole had in the stratum high strength resistance to tension and by closely knit mode such as combine between anchor pole and injecting cement paste around the anchor pole and the stratum with stratum consolidation, with the globality on raising stratum.With the control stratum deformation, make it to reach the stability and safety state.The development of this technology is existing century-old history, and proposes multiple bolt support type and technology to adapt to the different stratum and the needs of different condition.
With regard to the anchor pole type, can be divided into substantially:
Rigidity by anchor bar body can be divided into: make the bar reinforcement anchor pole (Baranchor) of the body of rod and make Anchor cable-rod (strand anchor) the two big classes of the body of rod with flexible high-strength steel hank knotting with reinforcing bar or steel pipe.The multi beam type anchor pole (multi-strand anchor) that Anchor cable-rod is generally formed with many steel hank knottings based on prestressing force, because construction is complicated, requires high to plant equipment.Be applicable to that generally anchored force has greater than 500KN, the stratum that length 10m is above.And the bar reinforcement anchor-holding force of anchor bolt generally uses less than 500KN, and the machinery that is adopted is simple, easy construction, so be to use maximum anchor poles at present, be widely used in middle-size and small-size anchoring need the stratum supporting in.As traffic tunnel, water conservancy and hydropower tunnel, mining tunnel, general foundation ditch and slope retaining.
In the bar reinforcement anchor pole 1) can be divided into grouted anchor bar and non-grouted anchor bar by the anchoring type.2) can be divided into non-prestressed anchor pole and prestressed anchor by the prestressing force mode.3) can be divided into mechanical. points anchor formula and full bond-anchorage type by the prestress anchoraging segmented mode.4) can divide non-binding type prestressed anchor and binding type prestressed anchor by the free section of prestressed anchor.5) can be divided into solid anchor pole and hollow (hollow) anchor pole by body of rod shape.6) can be divided into automatic anchor pole and non-automatic anchor pole by the mode of creeping into.
In the bar reinforcement anchor pole, China's National Standard anchor pole concrete-spraying technology standard " (GB50086-2001), " highway tunnel design specifications " (TJJ026-90), " Design of Railway Tunnel standard " (TB 10003-99), " relate to multiple bar reinforcement anchor pole type in anchoring and the slurry injection technique handbook documents such as (China Electric Power Publishing House, in September, 1999):
1. bar reinforcement grouting rock bolt: adopt indented bars to make the body of rod, its construction technology is that cement mortar is injected in the boring back in the stratum, inserts reinforcing bar again in band slurry duct, and reinforcing bar, mortar are combined with the stratum.Belong to anchoring type anchor pole after the first slip casting, its mechanics principle is after mortar solidifies, and the body of rod bears pulling force restriction stratum deformation with the stratum distortion.This anchor bolt construction is easy.
2. the solid anchor pole of the full bonding of high-early (strength) cement powder stick anchor pole and resin explosive roll anchoring: though be that the solid anchor pole of ordinary mortar is improved; applicable stratum expanded range; and can form supporting power rapidly; but anchoring slurry plumpness and thickness of protection tier still are difficult to guarantee because of structure aspect problem; influence the reliability of anchor bar body, be used for temporary lining more.
3. water swelling formula anchor pole and pipe-seam type anchor rod: utilize the body of rod and hole wall and rub and form supporting power.Belong to non-grouted anchor bar, generally be only applicable in temporary lining and the good rock stratum.
4. expansion sleeve bolt: utilizing the bloated shell power of anchorage head to form a some anchor-hold, is the anchor-hold that non-binding type anchoring produces.Shell power is by shell and the hole wall friction formation of expanding owing to expand, so be only applicable to preferably in the rock stratum; And in the prior art, expansion sleeve bolt is solid anchor pole, and behind bloated shell end anchorage, full anchor pole section can not be carried out grouting behind shaft or drift lining, so be used in the temporary lining more.
5. hollow automatic anchor pole: Chinese patent ZL95202848.4 discloses a kind of hollow automatic anchor pole, makees drilling rod by hollow lever and adds drill bit and realize drilling rod and anchor pole unification, slip casting again after creeping into.This technical scheme lays particular emphasis on a little less than the dead-soft and the grouting support of broken rock, but its shortcoming is an injecting cement paste anchoring overlong time, because of technological reason can not form anchored force rapidly, so the inapplicable stratum that needs quick supporting.
In sum, all there is shortcoming separately in above-mentioned anchor pole type, and is only applicable to certain occasion.Particularly in upward hole bolt support situation, in the bolt support of arch, make anchor pole tenesmus problem with regard to solving gravity of anchor pole own and grouting pressure when skyhook, this has only the anchor pole that forms quick supporting power to trust.In the above-mentioned anchor pole type, have only end anchorage type anchor pole, friction rock bolt just to solve preferably and go up to installation question.But make the anchor pole bond-anchorage by slip casting, and utilize bond-anchorage to improve the durability of anchor pole, can't accomplish.
For addressing the above problem, Chinese invention patent ZL02112233.4 discloses a kind of anchor rod support method and segmented hollow grouting anchor thereof, a kind of technical scheme of proposition be a kind of morning of strong anchoring, can prestressed segmented hollow grouting anchor.This technical scheme is during as prestressed anchor, hollow lever is free section, the solid body of rod is an anchoring section, is the binding type prestressed anchor that quick anchoring that anchoring section is carried out in the early strong anchoring agent of powder stick or resin combines with the hollow lever grouting behind shaft or drift lining, in the applicable and various rock stratum.For solving the bolt grouting problem, this technical scheme has proposed bearing plate (and stop grouting plug is with holes) with holes and can insert connecting pipe and utilize the cavity of hollow bolt body with the intercommunicating pore of branch sleeve ground anchor hole, connecting pipe to be communicated with formation slip casting-exhaust passage, has solved the bolt grouting problem when the anchor pole up/down is installed.This device can play the temporary lining effect of holding concurrently again simultaneously of permanent support function.This device has proposed a solution interim and that the permanent support technology unites two into one.
China utility model patent ZL200320107953.5 discloses a kind of expansion sleeve bolt.This anchor pole is by bloated (rising) shell anchorage head, anchor bar body, bearing plate, nut, compositions such as exhaust or inlet pipe road.This technical scheme adopts hollow tube to make anchor bar body or tie up a pipeline with solid reinforcing bar to replace hollow tube to make anchor bar body, the backing plate connecting pipe of inserting with holes, and the shell anchorage head that expands is done the termination point of anchor rod anchoring, after the shell anchorage head anchoring of expanding is installed, carries out the slip casting anchoring again.For solving the bolt grouting problem, this technical scheme has proposed bearing plate (and stop grouting plug with holes) with holes and can insert connecting pipe and utilize the cavity of hollow bolt body ground anchor hole, connecting pipe to be communicated with formation slip casting-exhaust passage, the bolt grouting problem when having solved the installation of anchor pole up/down with intercommunicating pore in the bloated shell anchorage head.This device can play the temporary lining effect of holding concurrently again simultaneously of permanent support function.This device has proposed another kind of solution interim and that the permanent support technology unites two into one.
Summary of the invention
The utility model provides a kind of bloated shell anchor pole with multi-functional stop grouting plug, provides a new approach to solve the slip casting and the anchoring problem when installing of going up of anchor pole by this anchor pole device and mounting process method, can guarantee that the full anchor pole topping that makes again of slip casting is even.And this anchor pole can form support anchoring power rapidly after installing, and control rock mass deformation both can be used as permanent support, can be used as temporary lining again.
A kind of bloated shell anchor pole with multi-functional stop grouting plug, form by bloated shell anchorage head, anchor bar body, stop grouting plug, backing plate, nut, one end of described anchor bar body is equipped with the shell anchorage head that expands, towards interior nut, backing plate and the stop grouting plug of being equipped with successively, be made up of the outer wedge of wedge and bloated shell in the shell that expands by described bloated shell anchorage head from its termination for the other end; Outer cover of wedge is on interior wedge, and the inner surface of outer wedge and the inner surface of interior wedge are connected; Interior wedge cavity middle part is threaded with bloated shell anchorage head; Encircle, be with the tight latch fitting of longitudinal fluting to form in the hard of described stop grouting plug by flexible outer shroud, band injected hole, flexible outer shroud is installed in the interior horn mouth that encircles of hard and tight latch fitting is closely connected on being enclosed within and encircling in the hard.
Wedge is for by the big end face in bottom surface Rotary-table little, the band cavity in the described bloated shell, and cavity is communicated with end face, bottom surface; Its external surface is that the interior wedge cavity of the bloated shell middle part that the pawl thread surface matches with the internal thread of the outer wedge of bloated shell has one section band interior threaded surface, be used for and the anchor bar body threads engaged, and the cavity of close end face is less than middle cavities, to form raised step, the degree of depth that is threaded that is used to control anchor bar body is no more than end face; The wedge that expands in the shell can be threaded with anchor rod body or by being processed to form an integrated member.There is the longitudinal opening groove wedge upper end in the described bloated shell, and open slot is communicated with its cavity and end face, in order to slip casting and exhaust; The lower end external surface of wedge is fluted in the described bloated shell, and groove is communicated with the bottom surface.The wedge lower end not only can be flat side ring but also can be the side ring of projection in the described bloated shell, and the side ring of projection can be that ring-type also can be equally distributed toothed projections.
The outer wedge of described bloated shell is served as reasons perpendicular to an end face and bottom surface cutting hollow circular cylinder that form, the band cavity of longitudinal axis, cavity is communicated with end face, bottom surface, and the outer wedge of described bloated shell has vertical end face open slot that twice are communicated with end face and two vertical bottom surface open slots that are communicated with the bottom surface are arranged; Open slot is vertical mutually on the wedge surface outside, and direction is opposite is divided into outer wedge four limbs, and the outer wedge inner surface of described bloated shell has the screw thread that matches with the interior wedge external surface of the shell that expands.
Described flexible outer shroud is the horn body band cavity, that the front and back end is communicated with, and its front end is little and thin, the rear end is big and thick.Its front end is a high resiliency thin layer ring, and its cavity inner surface is smooth, can be subjected to outwards to open formation slip casting passage behind the grouting pressure when slip casting.Its rear end is thick-layer loudspeaker rings, and it is outside for becoming big flexible torus gradually, can be preferably and the driving fit mutually of aperture crag, and have and only starch function; And the recessed tooth of ring-type is arranged near the cavity inner surface of rear end, fall double wedge with the ring-type of encircling in the hard and be meshed.
In the described hard ring for the band cavity, the front and back end is communicated with falls horn body, its front end is little and the rear end is big.Its front end is a cylinder, and matches with anchor bar body, the slurry outlet that its external surface hoop evenly distributes and is communicated with cavity.Its rear end is for horn-like, and external surface has the ring-type that matches with flexible outer shroud to fall double wedge, near in the cavity of rear end raised step is arranged, and is used for and cooperating of latch fitting tightly.
Described tight latch fitting is that front end is that annulus, rear end are that hex nut shape and middle part have short column body bulge loop, the band cavity.Its cavity is an interior threaded surface, and matches with the outer surface thread of anchor bar body.Raised step in front surface on the described bulge loop and the hard in the annular space chamber cooperates, and stop grouting plug is installed on the anchor bar body can withdraw from; The surface of the bulge loop of described tight latch fitting and interior closely connected cooperation of encircling of cavity inner surface of hard; The longitudinal fluting of described tight latch fitting is communicated with the interior ring of hard inner chamber, slurry outlet, forms the slip casting passage.
The external surface of the outer wedge of described bloated shell is for falling hackly surface, and described sawtooth can be the hoop distribution, herringbone distributes or graininess distributes.
The high-elastic flexible thin layer of the front end of the flexible jacket ring of described stop grouting plug is carried out on the front end external surface that covers ring in the hard, ring slurry outlet in its scope can cover, ring slurry outlet in also can not covering.
When described anchor bar body was the solid body of rod, with the slip casting or the exhaust pipeline that pass bearing plate and stop grouting plug, the another port of pipeline extended near the bloated shell anchorage head on the body of rod.
But the hollow tube of the total length screw thread that described anchor bar body is threaded for any point, or be the partial screw threads surface in the length of hollow bolt body two ends only, remainder is the hollow tube on non-threaded surface.
Anchor pole of the present utility model makes firm being installed in the boring of anchor pole by the rubbing action of expand shell anchorage head and boring crag, and makes anchor pole placed in the middle, backing plate, and nut is made Lock Part, by multi-functional stop grouting plug, realizes from the anchor rod body outer ring advancing slurry in the hole.Air is discharged by the hollow lever cavity, can realize grouting behind shaft or drift lining, makes slip casting full evenly.Guarantee the slip casting effect and the slip casting topping of the body of rod, realize supporting power.
During use, the on-the-spot impact rotated, and makes expand shell and crag formation swelling pressure power, can produce frictional force during skyhook, and making anchor bar body placed in the middle in the hole, the recoil strength that is produced in the time of particularly can guaranteeing the gravity of anchor pole itself and the pressure injection slurry is arranged when upward hole is installed is guaranteed anchor pole installation effect.Wedge is when jacking or commentaries on classics are advanced forward in anchor bar body drives, the outside distending of the limb of outer wedge, produce swelling pressure power with the hole wall contact friction, anchor pole is stablized to be installed in the hole, install and have the slip casting exhaust and only starch multi-functional stop grouting plug in one, adopt the special slip casting joint to enter boring by the groove of tight latch fitting, the slurry outlet of interior ring, the full gradually injecting cement paste that forms of slurry, and enter the anchor bar body cavity by the opening of the outer wedge of shell that expands, the open slot body of rod cavity of interior wedge, when slurries flow out from the cavity end, stop slip casting, finish anchor pole and install.Installation, the slip casting difficult problem of the boring anchor pole that the inclination angle makes progress in underground engineering support have been solved.
Anchor pole price of the present utility model is lower than general end anchorage type grouting behind shaft or drift lining anchor pole, and installation, slip casting effect are remarkable, and cost performance is superior.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the interior wedge of the bloated shell of the bloated shell anchorage head among Fig. 1, the three-dimensional assembling of the outer wedge of the shell that expands schematic diagram;
Fig. 2 a is the another kind of embodiment schematic perspective view of the interior wedge 1 of bloated shell among Fig. 2;
Fig. 3 is the schematic perspective view that assembles of the shell anchorage head that expands among Fig. 1 on anchor pole
Fig. 4 is the interior wedge of the bloated shell of the bloated shell anchorage head among Fig. 1, the three-dimensional assembling of the outer wedge of the shell that expands schematic diagram;
Fig. 4 a is Fig. 1 stop grouting plug and anchor rod body assembling drawing
Fig. 5 is that the contrive equipment of Fig. 1 is installed in the sectional drawing in the stratum.
Among the figure:
The flexible outer shroud of the bloated shell anchorage head 4-stop grouting plug of the outer wedge 3-of the bloated shell of wedge 2-in the bloated shell of 1-
The multi-functional stop grouting plug 8-of the tight latch fitting 7-bearing plate of ring 6-stop grouting plug in the hard of 5-stop grouting plug
The cavity of 9-nut 10-anchor bar body 20-hollow bolt body
The outer surface thread of wedge in the 11-
The groove of wedge external surface in the inner surface screw thread 13-of wedge in the 12-
End the into front opening groove of the interior wedge of end face 18-of the interior wedge of ring 17-in the 16-in the wedge inner chamber
The inner surface screw thread of the outer wedge of protruding side ring 21-of wedge bottom in the bottom 19a-of wedge in the 19-
The bottom surface open slot of the outer wedge of end face open slot 24-of the outer wedge of external surface pawl 23-of the outer wedge of 22-
The end face 28-of the outer wedge of bottom surface 27-of the outer wedge of band tooth limb 26-of the outer wedge of 25-ties up cord
The rear end of the flexible outer shroud of the recessed tooth 42-of hoop flexible outer shroud front end 43-of the flexible outer shroud of 41-rear end inwall
The rear end hoop double wedge of ring in the cavity 51-hard of ring in the 50-hard
The slurry outlet at ring middle part in the front end 53-hard of ring in the 52-hard
The rear end of ring in the raised step 55-hard of ring rear end cavity in the 54-hard
The middle part bulge loop of the tight latch fitting of screw thread 63-of the tight latch fitting inner surface of 62-
The groove of the tight latch fitting of the front surface 65-middle part bulge loop of the tight latch fitting of 64-middle part bulge loop
Anchor pole installing hole 101-boring opening crag and bearing surface in the 100-stratum
102-borehole circumference crag 103-boring bottom crag
The specific embodiment
Shown in Fig. 1, Fig. 3, Fig. 4 a, an a kind of end of forming described anchor bar body 10 by the shell anchorage head 3 that expands, anchor bar body 10, multi-functional stop grouting plug 7, backing plate 8, nut 9 with the bloated shell anchor pole of multi-functional stop grouting plug is equipped with the shell anchorage head 3 that expands, and is threaded with the interior wedge 1 of bloated shell anchorage head 3; Its other end from its termination towards interior nut 9, backing plate 8 and the stop grouting plug 7 of being equipped with successively.The shell anchorage head 3 that expands is made up of the outer wedge 2 of wedge 1 and bloated shell in the shell that expands; Outer wedge 2 is enclosed within on the interior wedge 1, and pawl is threaded.Encircle 5 in the hard of described stop grouting plug 7 by flexible outer shroud 4, band injected hole 53, be with the tight latch fitting 6 of longitudinal fluting 63 to form.
As shown in Figure 2, assemble schematic diagram for the solid of the shell anchorage head 3 that expands.The interior wedge 1 of the shell that expands is by the little bottom surface of end face Rotary-table big, the band cavity, and cavity is communicated with end face 17, bottom surface 19; Its external surface is that pawl thread surface 11 matches with the internal thread 21 of the outer wedge 2 of bloated shell.There is one section band interior threaded surface 12 at wedge 1 cavity middle part in the described bloated shell, be used for and anchor bar body 10 threads engaged, and near the cavity of end face 17 less than middle cavities, end into ring 16 (seeing shown in Figure 5) with formation, the degree of depth that is threaded that is used to control anchor bar body 10 is no more than end face 17.There is longitudinal opening groove 18 interior wedge 1 upper end of the shell that expands, and open slot 18 is communicated with its cavity and end face 17, in order to slip casting and exhaust; The lower end external surface of wedge 1 that expands in the shell is fluted 13, and groove 13 is communicated with bottom surface 19, in order to slip casting and exhaust.Fig. 2 a is depicted as the another kind of embodiment of wedge 1 in the shell that expands, and can there be the side ring 19a of projection its lower end, and the side ring of projection can be that ring-type also can be equally distributed toothed projections.
The outer wedge 2 of the shell that expands is served as reasons perpendicular to an end face 27 and bottom surface 26 cuttings hollow circular cylinder that form, the band cavity of longitudinal axis, and cavity is communicated with end face 77, bottom surface 16.The outer wedge 2 of the shell that expands has two vertical end face open slots that are communicated with end face 27 23 and two vertical bottom surface open slots 24 that are communicated with bottom surface 26 is arranged; Open slot 23,24 is vertical mutually on the wedge surface outside, and direction is opposite is divided into outer wedge four limbs 25.Its end face open slot 23 is about 3/4～7/8 of outer wedge 2 total lengths with bottom surface open slot 24.Outer wedge 2 inner surfaces 21 of the shell that expands have the screw thread that matches with wedge 1 external surface 11 in the bloated shell.
Influence the anchor pole installation for preventing to open, when assembling anchorage head 3, outer wedge 2 external surfaces of the shell that expands sentence rope 28 bottom or other objects are tied up; When anchor pole was in place in the stratum, along with limb 25 distendings of the outer wedge 2 of shell that expands, rope was thereupon being out of shape or disconnection and ineffective.
The operating principle of shell anchorage head 3 in the ground anchor installing hole that expand is: the anchor bar body 10 that with the percussion drilling instrument shell anchorage head 3 that expands will be housed when anchor pole is installed inserts in the anchor pole installing holes 100, makes the end face 27 of wedge 2 outside the bloated shell hold out against the bottom 103 of anchor pole installing hole.When continuing percussion drilling, anchor bar body 10 drives the interior wedge 1 of the shell that expands to be continued to move to bottom 103 directions, pawl slope of thread between the inner surface of the external surface of interior wedge 1 and outer wedge 2 produces relative motion, make four limbs 25 progressively distending outwards push crag 102, the production anchored force.When anchor bar body 10 can not rotate when entering, show limb 25 to greatest extent during distending, the shell anchoring of expanding is finished.
Fig. 4 is the stop grouting plug 7 three-dimensional assembling schematic diagrames shown in apparatus of the present invention, and Fig. 4 a is the assembling drawing of stop grouting plug 7 on anchor bar body 10 shown in apparatus of the present invention.Flexible outer shroud 4 is enclosed within the hard on the ring 5, and in the closely connected horn mouth that is installed in ring 5 in the hard of tight latch fitting 6, the endoporus 62 that the stop grouting plug of forming like this 7 passes through tight latch fitting 6 is connected with anchor bar body 10 thread surfaces.The longitudinal fluting 65 of tight latch fitting 6 is communicated with the interior ring of hard 5 inner chambers 50, slurry outlet 53, forms the slip casting passage.
Flexible outer shroud 4 for the band cavity, the front and back end is communicated with falls horn body, its front end is 42 little and thin, rear end 43 is big and thick.Its front end 42 is a high resiliency thin layer ring, and its cavity inner surface is smooth, can be subjected to outwards to open formation slip casting passage behind the grouting pressure when slip casting.Its rear end 43 is thick-layer loudspeaker rings, and it is outside for becoming big flexible torus gradually, can be preferably and aperture crag 101 driving fit mutually, and have and only starch function; And near the cavity inner surface of rear end 43 by the recessed tooth 41 of ring-type, fall double wedge 51 with the ring-type of ring 5 in the hard and be meshed.
In the hard ring 5 for band cavity 50, the front and back end is communicated with falls horn body, its front end 52 is little and rear end 55 is big.Its front end 52 is a cylinder, and matches with anchor rod body 10, the slurry outlet 53 that its external surface hoop evenly distributes and is communicated with cavity.Its rear end 55 is for horn-like, and external surface has the ring-type that matches with flexible outer shroud 4 to fall double wedge 51, near in the cavity 50 of rear end 55 raised step 54 is arranged, and is used for and cooperating of latch fitting 6 tightly.
Tight latch fitting 6 is that annulus, rear end are that hex nut shape, middle part have short column body bulge loop 63, the band cavity for front end.Its cavity is an interior threaded surface 62, and is communicated with front/rear end.Interior threaded surface 62 matches with the outer surface thread of anchor bar body 10.During installation, the front surface 64 of bulge loop 63 holds out against the raised step 54 in ring 5 cavitys 50 in the hard, stop grouting plug 7 is installed on the anchor bar body 10 can withdraw from; The bulge loop 63 of tight latch fitting 6 is with a plurality of longitudinal flutings 65, its closely connected cooperation of cavity 50 inner surfaces surperficial and the interior ring 5 of hard, longitudinal fluting 65 is communicated with cavity 50, slurry outlet 53 forms the slip casting passage.
Like this, had the slip casting exhaust by the stop grouting plug 7 that encircles 4 in the hard, flexible outer shroud 5, tight latch fitting 6 combine and ended two multi-functionals of slurry.
Fig. 5 is installed in vertical section schematic diagram in the stratum, the situation when upwards installing for anchor pole for apparatus of the present invention.Direction shown in the arrow is the flow direction of injecting cement paste in the slip casting passage.The slip casting operating principle is: by the special slip casting device, injecting cement paste advances slurry from the groove 64 of aperture stop grouting plug bottom, slurry enters bolthole 100 along cavity 50 and the slurry outlet 53 that groove 64 is communicated with, and progressively upwards full bolthole, last slurry is wedge 1, the cavity (12,21) of outer wedge 2, groove 13, longitudinal opening groove (18,23 in the shell that expands, 24) and enter the cavity 20 of the hollow bolt body 10 that is communicated with it, the air in the bolthole is also discharged along this direction.When slurries when the anchor pole exposed junction flows out, slip casting is finished.
The external surface of the outer wedge 2 of the bloated shell shown in apparatus of the present invention is for falling hackly surface, and the sawtooth 22 that falls can be the hoop distribution, herringbone distributes or graininess distributes.
The interior wedge 1 of the shell that expands can be threaded with anchor rod body 10 or also can be by being processed to form an integrated member.
The high-elastic flexible thin layer 42 of the front end of the flexible jacket ring 4 of stop grouting plug 7 is carried out on the front end external surface 52 that covers ring 5 in the hard, ring slurry outlet 53 in its scope can cover, ring slurry outlet 53 in also can not covering.
When described anchor bar body 10 also can be the solid body of rod, with the slip casting or the exhaust pipeline that pass bearing plate and stop grouting plug, the another port of pipeline extended near the bloated shell anchorage head on the body of rod.
But described anchor bar body 10 not only comprises the hollow tube or the solid body of rod of the total length screw thread that any point is threaded, and comprising the only partial screw threads surface in the length of hollow bolt body two ends, remainder is the hollow tube and the solid body of rod on non-threaded surface.
Anchor pole shown in this device is installed grouting process and is achieved in that
1. the usefulness auger is holed in stratum (rock stratum) and is cleaned boring;
2. at the scene a termination of anchor bar body 10 is connected with the female thread 12 of wedge 1 in the bloated shell, interior wedge 1 inserts in the outer wedge 2 continuous with screw thread, assembles in place;
3. will assemble bloated shell anchor head 3 in place inserts in the boring together with hollow bolt body 10, means such as another termination rotation impact at hollow bolt body 10 make anchorage head 3 be inserted into foot of hole 103 together with anchor bar body 10, when wedge 1 outside wedge 2 inner chamber jackings or commentaries on classics are advanced in anchor rod body 10 drives, outer wedge 2 tops 27 hold out against foot of hole 103, make the limb 25 outside distendings of outer wedge 2.When anchor bar body 10 can not rotate when entering, show limb 25 to greatest extent during distending, the shell anchoring of expanding is finished.After anchorage head 3 installations, the frictional force that the is produced recoil strength that pressure is produced during at least greater than the gravity of anchor pole itself and slip casting.
4. ring in the hard of multi-functional stop grouting plug 5 is inserted flexible outer shroud 4, multi-functional stop grouting plug 7 is inserted in anchor pole, screw locking member 6, make the expansion rear end 43 closely connected rock stratum bearing surfaces 101 of flexible outer shroud 4 in hell.
5. after finishing above-mentioned steps, can carry out slip casting to anchor bar body.Adopt the outer hollow lever 10 of special slip casting fitting sleeve man-hole opening, the rear end locks with the work nut, groove 65 on the tight latch fitting outer shroud of filling adaptor front end grout outlet and stop grouting plug leads to the slurry outlet 53 of ring in the hard, the front end thin layer 42 that flicks flexible outer shroud enters bolthole, slurry is advanced in realization in the hole from the anchor rod body outer ring, slurry is the cavity of full whole bolthole gradually, after wedge 1 is connected in anchor bar body hollow tube 10 and the bloated shell, the cavity of wedge 1 and interior wedge front opening 18 and the outer wedge open slot 23 of bloated shell in anchor bar body internal cavity 20 and the bloated shell, 24 form passage, air is discharged by body of rod cavity 20, can realize grouting behind shaft or drift lining.Flow by the direction of arrow shown in Figure 4, when slurries when the anchor pole exposed junction flows out, slip casting is finished.
6. pull down work nut, special slip casting joint, mounting support backing plate 8, locking nut 9, anchor pole installs.
Claims (10)
1. bloated shell anchor pole with multi-functional stop grouting plug, form by bloated shell anchorage head (3), anchor bar body (10), stop grouting plug (7), backing plate (8), nut (9), one end of described anchor bar body (10) is equipped with the shell anchorage head (3) that expands, the other end, is characterized in that towards interior nut (9), backing plate (8) and the stop grouting plug (7) of being equipped with successively from its termination: described bloated shell anchorage head (3) is made up of the outer wedge (2) of wedge (1) and bloated shell in the shell that expands; Outer wedge (2) is enclosed within on the interior wedge (1), and the inner surface of the inner surface of outer wedge (2) and interior wedge (1) is connected; Interior wedge (1) cavity is connected with bloated shell anchorage head (3); Described stop grouting plug (7) is made up of the tight latch fitting (6) of ring (5), band longitudinal fluting in the hard of flexible outer shroud (4), band injected hole (53), flexibility outer shroud (4) is enclosed within and encircles in the hard on (5), and tight latch fitting (6) is closely connected to be installed in the horn mouth that encircles (5) in the hard.
2. the bloated shell anchor pole with multi-functional stop grouting plug according to claim 1 is characterized in that: wedge (1) is the big end face in bottom surface hollow round table body little, the band cavity in the described bloated shell, and cavity is communicated with end face (17), bottom surface (19); Its external surface (11) is a thread surface, matches with the internal thread (21) of the outer wedge (2) of bloated shell; There is longitudinal opening groove (18) wedge (1) upper end in the described bloated shell, and open slot (18) is communicated with its cavity and end face (17); The lower end external surface fluted (13) of wedge (1) in the described bloated shell, groove (13) is communicated with bottom surface (19); The outer wedge (2) of described bloated shell is the hollow circular cylinder of band cavity, and cavity is communicated with end face (27), bottom surface (26).The outer wedge (2) of described bloated shell has two vertical end face open slots (23) that are communicated with end face (27) and two vertical bottom surface open slots (24) that are communicated with bottom surface (26) is arranged; Open slot (23), (24) are vertical mutually on the wedge surface outside, and direction is opposite is divided into outer wedge four limbs (25).
3. the bloated shell anchor pole with multi-functional stop grouting plug according to claim 2 is characterized in that: the external surface of the outer wedge (2) of described bloated shell is the thread surface of falling the zigzag, and described sawtooth can be the hoop distribution, herringbone distributes or graininess distributes.
4. the bloated shell anchor pole with multi-functional stop grouting plug according to claim 1 and 2 is characterized in that: wedge (1) lower end not only can be flat side ring but also can be the side ring (19a) of projection in the described bloated shell.
5. the bloated shell anchor pole with multi-functional stop grouting plug according to claim 4 is characterized in that: the side ring of described projection (19a) can be that ring-type also can be equally distributed toothed projections.
6. the bloated shell anchor pole with multi-functional stop grouting plug according to claim 1 and 2 is characterized in that: wedge (1) can be threaded with anchor rod body (10) or by being processed to form an integrated member in the described bloated shell.
7. the bloated shell anchor pole with multi-functional stop grouting plug according to claim 1, it is characterized in that: the flexible outer shroud (4) of described stop grouting plug (7) is the horn body band cavity, that the front and back end is communicated with, its front end (42) is a high resiliency thin layer ring, its rear end (43) is thick-layer loudspeaker rings, and it is outside for becoming big flexible torus gradually; And the recessed tooth of ring-type (41) is arranged near the cavity inner surface of rear end (43), fall double wedge (51) with the ring-type of ring (5) in the hard to be meshed; The interior ring of the hard of described stop grouting plug (7) (5) is horn body band cavity (50), that the front and back end is communicated with, match with anchor bar body (10), the slurry outlet (53) that its external surface hoop evenly distributes and is communicated with cavity, its rear end (55) is for horn-like, its external surface has the ring-type that matches with flexible outer shroud (4) to fall double wedge (51), near in the cavity (50) of rear end (55) raised step (54) is arranged, with cooperating of tight latch fitting (6); Described tight latch fitting (6) is that annulus, rear end are that hex nut shape middle part has short column body bulge loop (63), the band cavity for front end; Its cavity is interior threaded surface (62), matches with the outer surface thread of anchor bar body (10); Front surface (64) on the described bulge loop (63) cooperates with the interior raised step of encircling in (5) cavity (50) (54) of hard; The longitudinal fluting (65) of described tight latch fitting (6) is communicated with the interior ring of hard (5) inner chamber (50), slurry outlet (53), forms the slip casting passage.
8. according to claim 1 or 7 described bloated shell anchor poles with multi-functional stop grouting plug, it is characterized in that: the high-elastic flexible thin layer of front end (42) of the flexible outer shroud (4) of described stop grouting plug (7) is carried out on the front end external surface (52) that covers ring (5) in the hard, ring slurry outlet (53) in its scope can cover, ring slurry outlet (53) in also can not covering.
9. according to the arbitrary described bloated shell anchor pole of claim 1-8 with multi-functional stop grouting plug, it is characterized in that: described anchor bar body (10) but the hollow tube of the total length screw thread that is threaded for any point, or be the partial screw threads surface in the length of hollow bolt body two ends only, remainder is the hollow tube on non-threaded surface.
10. according to the described bloated shell anchor pole of claim 1-8 with multi-functional stop grouting plug, it is characterized in that: described anchor bar body (10) is the solid body of rod, with the slip casting or the exhaust pipeline that pass bearing plate (8) and stop grouting plug (8), the another port of pipeline extends near the shell anchorage head (3) that expands on the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013124 CN2809009Y (en) | 2005-07-08 | 2005-07-08 | Expansion shell anchor rod for multifunctional stop-grouting plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013124 CN2809009Y (en) | 2005-07-08 | 2005-07-08 | Expansion shell anchor rod for multifunctional stop-grouting plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2809009Y true CN2809009Y (en) | 2006-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520013124 Expired - Fee Related CN2809009Y (en) | 2005-07-08 | 2005-07-08 | Expansion shell anchor rod for multifunctional stop-grouting plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2809009Y (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051880A (en) * | 2010-12-31 | 2011-05-11 | 杭州图强工程材料有限公司 | Detachable anchor |
| CN102704971A (en) * | 2012-01-11 | 2012-10-03 | 济南澳科矿山工程技术有限公司 | Grouting and Grouting-stopping anchor cable inside hole |
| CN102877867A (en) * | 2012-09-26 | 2013-01-16 | 山东科技大学 | Novel inflatable yielding pre-stress grouting anchor rod and usage method thereof |
| CN102953742A (en) * | 2012-11-14 | 2013-03-06 | 山东大学 | End-type multi-stage grout stopping plug of grouting anchor rod and use method thereof |
| CN103321223A (en) * | 2013-07-09 | 2013-09-25 | 中国水电顾问集团成都勘测设计研究院 | Expansion body, expansion-type grouting-free anchor rope device and anchor rope support method |
| CN103334780A (en) * | 2013-07-17 | 2013-10-02 | 中国科学院武汉岩土力学研究所 | Expansion shell type constant-resistance pre-stressed anchoring bolt |
| CN104963710A (en) * | 2015-07-16 | 2015-10-07 | 尤洛卡（山东）深部地压防治安全技术有限公司 | Hollow grouting anchor rod with anti-shock constant-resistance performance and using method thereof |
| CN105114110A (en) * | 2015-09-21 | 2015-12-02 | 洛阳中岩工程材料有限公司 | Novel slide way type expanding-shell anchor head |
| CN105201533A (en) * | 2015-10-14 | 2015-12-30 | 灌阳县鸿运矿山设备有限公司 | Mining anchor rod |
| CN107100656A (en) * | 2017-07-10 | 2017-08-29 | 中南大学 | A kind of anti-reflection slip casting Composite Bolt method for protecting support of liquid carbon dioxide explosion |
| CN107747499A (en) * | 2017-11-29 | 2018-03-02 | 洛阳工岩科技有限公司 | Reacting cycle grouting device |
| CN107938667A (en) * | 2017-12-14 | 2018-04-20 | 天津城建大学 | It is segmented self-tightening type anchor pole and its application method |
| CN109838257A (en) * | 2019-01-30 | 2019-06-04 | 中国铁建重工集团有限公司 | A kind of anchor dispensing device and its construction for rock bolting jumbo |
| CN110939476A (en) * | 2020-01-05 | 2020-03-31 | 王和平 | Grouting device of solid anchor rod |
| CN111101514A (en) * | 2018-10-25 | 2020-05-05 | 中国石油天然气集团有限公司 | Anchor rod device and anchor rod installation method |
| CN112068192A (en) * | 2020-09-10 | 2020-12-11 | 中南大学 | Movable mounting device and mounting method for microseismic sensor |
| CN113417678A (en) * | 2021-07-27 | 2021-09-21 | 辽宁工程技术大学 | Warped-shell type anti-impact anchor rod and supporting method thereof |
| CN114439524A (en) * | 2021-12-28 | 2022-05-06 | 杭州图强工程材料有限公司 | Anchor rod device |
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2005
- 2005-07-08 CN CN 200520013124 patent/CN2809009Y/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051880B (en) * | 2010-12-31 | 2012-07-18 | 杭州图强工程材料有限公司 | Detachable anchor |
| CN102051880A (en) * | 2010-12-31 | 2011-05-11 | 杭州图强工程材料有限公司 | Detachable anchor |
| CN102704971A (en) * | 2012-01-11 | 2012-10-03 | 济南澳科矿山工程技术有限公司 | Grouting and Grouting-stopping anchor cable inside hole |
| CN102704971B (en) * | 2012-01-11 | 2016-03-02 | 济南澳科矿山工程技术有限公司 | Grouting grouting cable anchor in hole |
| CN102877867B (en) * | 2012-09-26 | 2015-07-15 | 山东科技大学 | Novel inflatable yielding pre-stress grouting anchor rod and usage method thereof |
| CN102877867A (en) * | 2012-09-26 | 2013-01-16 | 山东科技大学 | Novel inflatable yielding pre-stress grouting anchor rod and usage method thereof |
| CN102953742A (en) * | 2012-11-14 | 2013-03-06 | 山东大学 | End-type multi-stage grout stopping plug of grouting anchor rod and use method thereof |
| CN102953742B (en) * | 2012-11-14 | 2015-03-25 | 山东大学 | End-type multi-stage grout stopping plug of grouting anchor rod and use method thereof |
| CN103321223B (en) * | 2013-07-09 | 2015-09-16 | 中国电建集团成都勘测设计研究院有限公司 | Expander, expansion type exempt from grouting anchor cable device and cable bolting method |
| CN103321223A (en) * | 2013-07-09 | 2013-09-25 | 中国水电顾问集团成都勘测设计研究院 | Expansion body, expansion-type grouting-free anchor rope device and anchor rope support method |
| CN103334780A (en) * | 2013-07-17 | 2013-10-02 | 中国科学院武汉岩土力学研究所 | Expansion shell type constant-resistance pre-stressed anchoring bolt |
| CN103334780B (en) * | 2013-07-17 | 2016-01-20 | 中国科学院武汉岩土力学研究所 | A kind of swollen shell-type constant-resistance prestressed anchor |
| CN104963710A (en) * | 2015-07-16 | 2015-10-07 | 尤洛卡（山东）深部地压防治安全技术有限公司 | Hollow grouting anchor rod with anti-shock constant-resistance performance and using method thereof |
| CN105114110A (en) * | 2015-09-21 | 2015-12-02 | 洛阳中岩工程材料有限公司 | Novel slide way type expanding-shell anchor head |
| CN105201533A (en) * | 2015-10-14 | 2015-12-30 | 灌阳县鸿运矿山设备有限公司 | Mining anchor rod |
| CN107100656A (en) * | 2017-07-10 | 2017-08-29 | 中南大学 | A kind of anti-reflection slip casting Composite Bolt method for protecting support of liquid carbon dioxide explosion |
| CN107100656B (en) * | 2017-07-10 | 2019-02-05 | 中南大学 | A kind of anti-reflection slip casting Composite Bolt method for protecting support of liquid carbon dioxide explosion |
| CN107747499A (en) * | 2017-11-29 | 2018-03-02 | 洛阳工岩科技有限公司 | Reacting cycle grouting device |
| CN107938667A (en) * | 2017-12-14 | 2018-04-20 | 天津城建大学 | It is segmented self-tightening type anchor pole and its application method |
| CN111101514A (en) * | 2018-10-25 | 2020-05-05 | 中国石油天然气集团有限公司 | Anchor rod device and anchor rod installation method |
| CN109838257A (en) * | 2019-01-30 | 2019-06-04 | 中国铁建重工集团有限公司 | A kind of anchor dispensing device and its construction for rock bolting jumbo |
| CN110939476A (en) * | 2020-01-05 | 2020-03-31 | 王和平 | Grouting device of solid anchor rod |
| CN112068192A (en) * | 2020-09-10 | 2020-12-11 | 中南大学 | Movable mounting device and mounting method for microseismic sensor |
| CN112068192B (en) * | 2020-09-10 | 2021-10-26 | 中南大学 | Movable mounting device and mounting method for microseismic sensor |
| CN113417678A (en) * | 2021-07-27 | 2021-09-21 | 辽宁工程技术大学 | Warped-shell type anti-impact anchor rod and supporting method thereof |
| CN114439524A (en) * | 2021-12-28 | 2022-05-06 | 杭州图强工程材料有限公司 | Anchor rod device |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20060823 Termination date: 20120708 |