CN101915111A - The engagement head that is used for tension assembly - Google Patents
The engagement head that is used for tension assembly Download PDFInfo
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- CN101915111A CN101915111A CN2010101808192A CN201010180819A CN101915111A CN 101915111 A CN101915111 A CN 101915111A CN 2010101808192 A CN2010101808192 A CN 2010101808192A CN 201010180819 A CN201010180819 A CN 201010180819A CN 101915111 A CN101915111 A CN 101915111A
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- supporting base
- base member
- rock
- tension assembly
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- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000011347 resin Substances 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 10
- 238000004873 anchoring Methods 0.000 description 7
- 230000000295 complement effect Effects 0.000 description 6
- 238000005065 mining Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000010412 perfusion Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 229920003023 plastic Polymers 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/006—Anchoring-bolts made of cables or wires
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of engagement head that is used for the rock bolt tension assembly, the profile of this engagement head comprises at least one key surface, by directly cooperating with rock surface, perhaps by in abutting connection with and the rock surface plate-shaped member that can cooperate, thereby prevent that engagement head from rotating with respect to rock surface.
Description
Technical field
The present invention relates to rock bolt (rock bolting) supporting, particularly relate to the tension assembly that provides the rock bolt of supporting to use as country rock and wall is provided using in mining and tunnel industry.The present invention is suitable for the competent bed construction, also is suitable for softer stratum, and for example the stratum that occurs in the colliery of being everlasting should be able to be understood that, the term that uses in the manual " rock " has been endowed implication widely, and it can both cover these application.
Background technology
Crown and wall supporting are vital in mining and constructing tunnel.The wall and the crown of mine and tunnel are made of the rock stratum, must carry out anchoring to the rock stratum and to avoid to collapse and.Rock bolt, as have the anchor pole of stiff shaft and the anchoring that anchor cable is widely used in the rock stratum.
In traditional rock strata support system, in rock, make a call to a hole with drilling rod, remove drilling rod then, and an anchor pole is installed in drill hole, use resin or cementation that anchor pole is fixed on corresponding position.The tensioning of described anchor pole makes the adjacent strata pressurized, thereby makes adjacent rock stratum anchoring.
For anchor pole can be tensioned, the Stent assembly by the anchor pole end cooperates with the rock stratum, and the anchor pole end mechanically is anchored on the rock stratum.In addition, by perfusion resin cementing agent in boring, anchor pole can adhesively be connected in the rock stratum.Replacedly, by using Stent assembly and resinoid bond simultaneously, with mechanical anchor with resin-bondedly unite use.
When using resin-bonded material, in the rock stratum around it is penetrated into rock stratum and stratum are linked up, thereby anchor pole is securely remained in the boring.Normally with the plastics filter core form perfusion boring of two components, a component comprises cured resin to resin, and another component comprises curing compound (catalyzer).When the blind end that the resin filter element perfusion of described two components is holed, when the mine anchor pole inserted boring, the end of mine anchor pole can isolate the resin filter element of described two components.When the mine anchor pole when its longitudinal axis rotates, the interval of resin filter element inside is pulverized, each component is with mixed.This resin compound is filled the annular region between drill hole wall and mine bolt shaft.This hybrid resin solidifies the mine anchor pole and is bonded on the rock on every side.
Proposed tension assembly and provide pulling force along rock bolt, anchor cable for example, it applies a pressure around anchor pole on matrix, and described matrix is mine shafts top board matrix normally.
Summary of the invention
The invention discloses a kind of tension assembly that is used for rock bolt, tension assembly comprises and is used for the engagement head that cooperates with rock surface directly or indirectly, wherein the profile bag of engagement head expands at least one key surface, rotates with respect to rock surface to prevent engagement head.
In a form, engagement head is arranged to cooperate with rock surface by the adjacency plate-shaped member, and engagement head prevents that by at least one key surface this engagement head from rotating with respect to plate-shaped member.
The engagement head of tension assembly cooperates the rotation that is used to prevent engagement head with direct or direct forward between the rock surface, therefore can be used as to prevent from tension force is applied to the means that the bolt shaft on the axle is distorted when tension adjustment.It is particular importance in using that this distortion at anchor cable can cause the Anchor cable-rod of strand debatching.In some form, key surface is configured as and allows axle to tilt with respect to rock surface or plate-shaped member and do not come off with head, cooperates in case spline is moving thereby keep.
In a form, key surface is formed in the part of the projection on the engagement head.In a form, key surface comprises the side of radially projection.In a form, the side radially projects into the periphery of head from the center.In a form, key surface is positioned on from the head the peripheral outward extending projection.In a form, key surface is positioned at the groove that extends into head.In a form, key surface forms one or more flat surfaces and as engagement head.
In a form, engagement head forms the part of supporting base member, and this supporting base member comprises a passage, and rock bolt extends by this passage.In a particular form, the supporting base member comprises the inner surface that limits described passage, this inner surface comprises and is installed to rock bolt or is formed on the surface that the abutment in the rock bolt is cooperated, and prevents at least in one direction that to provide betwixt the supporting base member from cooperating with respect to the forward that abutment rotates around anchor pole.
A kind of assembly of the plate-shaped member that comprises the tension assembly of any form described above and be arranged to directly cooperate with rock surface is disclosed in second aspect.Plate-shaped member comprises the key surface of at least one plate, and it is cooperated with at least one key surface of engagement head, to prevent rotation therebetween.
The engagement head that a kind of tension assembly that is used for rock bolt is used is disclosed in the third aspect.This engagement head is used for directly or indirectly cooperating with rock surface.The profile of engagement head comprises at least one key surface, rotates with respect to rock surface to prevent engagement head.
In a form, the key surface of engagement head and previously described tension assembly are different.
Disclose a kind of matable assembly of cooperating between rock surface and tension assembly of being used in fourth aspect, this matable assembly comprises: with the plate-shaped member that rock surface directly cooperates, this plate-shaped member comprises the key surface of at least one plate; And be arranged to the supporting base member that cooperates with tension assembly, and this supporting base member has the head of the key surface that comprises at least one head, and wherein the key surface of the key surface of head and plate is suitable for cooperating, and rotates with respect to rock surface to prevent head.
In aspect the 5th, the present invention relates to a kind ofly use or form the plate-shaped member of the part of above-mentioned matable assembly with tension assembly.
Disclose a kind of rock bolt assembly in aspect the 6th, having comprised: anchor pole with axis; In the face of and against the supporting base member of rock surface, anchor pole is arranged to extend through the supporting base member; And be installed to rock bolt or be formed on the interior abutment of rock bolt, wherein, the cooperation surface that provides forward to cooperate therebetween is provided for abutment and supporting base member, thereby prevents that at least one direction the supporting base member from rotating with respect to abutment around the anchor pole axis.
Disclose a kind of method that prevents that tension assembly from rotating with respect to rock surface in one aspect of the method, tension assembly comprises the supporting base member, and this method comprises: the location plate-shaped member contacts with rock surface; Positioning support seat member contacts with plate-shaped member; And make correspondent button surface in the key surface butt plate-shaped member in the supporting base member.
Description of drawings
Embodiment is described by the mode of following example, with reference to following accompanying drawing, wherein:
Fig. 1 shows the phantom drawing of an embodiment of the tensioning apparatus that is arranged on the anchor cable.
Fig. 2 shows the exploded view of tensioning apparatus among Fig. 1.
Fig. 3 shows the phantom drawing of tensioner base among Fig. 1.
Fig. 4 shows the sectional view of base among Fig. 3.
Fig. 5 shows the vertical view of base among Fig. 3.
Fig. 6 shows the phantom drawing of tensioning apparatus supporting base member among Fig. 1.
Fig. 7 shows the sectional view of member among Fig. 6.
Fig. 8 shows the vertical view of member among Fig. 6.
Fig. 9 shows the side plan view of the tensioning apparatus that is connected with anchor cable with bearing plate among Fig. 1.
Figure 10 shows the sectional view of assembly apparatus among Fig. 9.
Figure 11 A shows top phantom drawing, plan view, sectional view and the upward view of interchangeable supporting base member to D.
Figure 12 A and B show the plan view and the sectional view of the bearing plate that the supporting base member uses in Figure 11.
Figure 13 A shows end phantom drawing, upward view and lateral view according to the bearing plate of the anchor cable tension assembly of another embodiment to C.
Figure 14 A, B and C show end phantom drawing, upward view and the sectional view of the supporting base member of the anchor cable tension assembly that bearing plate uses in Figure 13.
Figure 15 A and B show the operation of the bearing plate of the supporting base member of Figure 13 and Figure 14.
Figure 16 A, B and C show end phantom drawing, upward view and the lateral view according to the bearing plate of the anchor cable tension assembly of another embodiment.
That Figure 17 A, B and C show is that bearing plate with Figure 16 uses, according to end phantom drawing, upward view and the sectional view of the supporting base component head of the anchor cable tension assembly of another embodiment.
Figure 18 A and B show the operation of the bearing plate of the supporting base member of Figure 17 and Figure 16.
Figure 19 A and B show vertical view and the lateral view of using the supporting base component head according to the anchor cable tension assembly of another embodiment.
Figure 20 A and B show lateral view and the upward view that uses bearing plate with the supporting base member of Figure 19 A and B.
Figure 21 A and B show vertical view and the lateral view of using the supporting base component head according to the anchor cable tension assembly of another embodiment.
Figure 22 A and B show the lateral view and the upward view of the bearing plate that the supporting base member with Figure 21 A and B uses.
Figure 23 shows the sectional view according to the tension assembly of another embodiment.
Figure 24 shows the end phantom drawing of the tensioning apparatus actuator of Fig. 1.
Figure 25 shows the sectional plain-view drawing of the actuator of Figure 24.
Figure 26 shows the vast scale detailed drawing of tip engages actuator profile of the actuator of Figure 24.
Figure 27 to 36 shows the erection sequence (showing the side plan view and the sectional view of assembly) of the tensioning apparatus of Fig. 1.
The specific embodiment
What following manual was described is the engagement head that is used for tension assembly shown in Figure 11 to 22, is used for the anchor pole that tensioning has been installed in rockhole by chemical anchoring and/or mechanical anchor process usually and has anchored to the rock stratum.Manual also relates to assembly (Fig. 1 to 10 and 23 to 26 illustrates) that is used for the tensioning anchor cable and the installation process (Figure 27 to 36 illustrates) of using described engagement head.
Tension assembly
At first referring to Fig. 1 to 10, first embodiment of the tension assembly 1 that shows.Tension assembly 1 uses with rock bolt 2, and rock bolt 2 has usually ties up the axle 3 that forms together by strand.During use, anchor pole is installed in the rock stratum 500 in the boring 501 (seeing Figure 33) that forms, and the far-end (not shown) of anchor pole 2 is positioned near the blind end of boring 501, and proximal part 3b arranges from holing and 501 stretches out.Tension assembly 1 is arranged to be installed on the proximal part 3b, with the external surface 502 that is located at the rock stratum.
Tension assembly comprises three main members: be fixed on the base 5 on the axle 3; Along axle supporting base member 10 movably, this supporting base member cloth is set to directly or indirectly and contacts with rock stratum 500 with respect to base; And actuator 16, this actuator can cooperate with supporting base member and base, and actuator transmission eccentric force makes the supporting base member move away base in use, makes anchor cable realize tension, will introduce in detail below.
In illustrated mode, base 5 comprises the first that forms tube 7, the second portion that forms cadre 8, and the tension force wedge 6 that is positioned at tube 7, and this tension force wedge is in use with respect to axle 3 fastening seats 5.Tension force wedge 6 has and is used to limit the interior wedge surface 6a that anchor cable holds the ccontaining anchor cable 2 of passage, with the outer wedge surface 6b relative with interior wedge surface.Outer wedge surface has and tube 7 inner complementary profiles.When the direction of anchor cable near-end 3b loaded, tension force wedge 6 cooperated with anchor cable at tube.In addition, during loading, tube 7 and wedge 6 have enough intensity to prevent that shear stress lost efficacy, and are fixedly remained in the tube 7 by tension force wedge 6 to guarantee anchor cable 2.
The cadre 8 of base 5 is 3 extensions from tube 7 along anchor cable.Cadre 8 is columniform, and is connected with tube forming annular shoulder 31, and this annular shoulder is in use towards the far-end of anchor pole 2.Inner passage 32 is set is inserted through the cadre to allow anchor cable axle 3, this cadre has the external surface 33 of non-circle, and this external surface comprises that the external surface 33 that is shown in cadre 8 forms the key surface 9 on plane.
Supporting base member 10 is installed on the cadre 8, and removable with respect to this cadre 8.By Fig. 6 to 8 preferably shown in, supporting base member 10 comprises outside threaded main body 11 and is positioned at the rounded head 13 of main body one end.Main body 11 has an internal cavities 34, and the wall 35 of cavity is complementary with cadre 8 external surface 33, and comprises an inner band key section 12.This inner band key section 12 is positioned at cavity, in the time of like this on supporting base member 10 is arranged in base 5 (so that cadre 8 extends into the cavity of supporting base member 10), external belt key section 9 on the cadre 8 cooperates with inside band key section 12 on the supporting base member 10, prevents that by this supporting base part 10 from rotating with respect to base 12 around the longitudinal axis of axle 3.Yet supporting base member 10 is axially movable at anchor cable along cadre 8.
The rock surface that supporting base member 10 is arranged to rounded head 13 and anchor pole are extended into cooperates directly or indirectly.Rounded head 13 is combined with an opening 35, therefrom passes through through the supporting base member to allow anchor cable axle 3, and this rounded head is different from dome (for example, being driven plain to form tabular outward appearance) in shape, can directly cooperate with rock surface like this.Yet in an embodiment, rounded head 13 is arranged to cooperate (seeing Fig. 9 and 10) with independent anchor pole bearing plate 30, and this bearing plate is in use between rock surface and supporting base member 10.
Rounded head 13 shown in Fig. 1 to 10 is hemispheric, and cooperate with the inward flange 36 of bearing plate 30 on the boss 42 that is formed on bearing plate 30 (as Figure 10 preferably shown in).This direct contact is arranged to provide frictional resistance, like this, in tensioning apparatus 1, prevents that rounded head from rotating with respect to bearing plate 30 cooperating between bearing plate 30 and the rounded head 13.In addition, when supporting base member 10 tilts an angle with respect to bearing plate 30, use hemispheric basically rounded head 13 so that this rounded head is kept cooperating of (thereby rotary resistance is provided) and bearing plate 30, allow the anchor pole axis that in use may take place inclination with respect to bearing plate 30.To elaborate below, rotate by preventing the supporting base member, help to prevent tensioning during anchor cable be distorted.
Figure 11 to 22 discloses the embodiment of tensioning apparatus, wherein provide forward adapting device (positiveengagement arrangement) to be rotatably assorted with respect to bearing plate 30, rather than relied on the frictional resistance between head and the bearing plate 30 to prevent rounded head 13.In the form of embodiment, head and bearing plate have matching surface and cooperate to form this forward.
In the layout of Figure 11 and 12, the profile of head 13a comprises skew side 91.Side 91 is provided with angularly at interval around head 13a, and from the radially projection of this head.Illustrate, the side be suitable for the bearing plate shown in Figure 12 A and the 12B in corresponding surface 92 cooperate.By this way, clockwise rotate (from the lower end of supporting base member 10) of face 91,92 is arranged to form cooperation, prevents that to provide forward to cooperate supporting base member 10 is rotatably assorted with respect to plate 30a.In addition, the curved surface 91a that is arranged in side 91 head 13a afterwards provides guiding on the surface, uses so that head cooperates with plate 30a, and like this, head 13a can form oriented at any angle around anchor pole axis and plate 30a.So head can cooperate with plate 30a, rotate with head 13a simultaneously, head 13a moves and crosses plate 30a, cooperates until the side 91 and 92 of complementation.In illustrated embodiment, extend from the circular top part of rounded head side 91.When supporting base member 10 makes to the bearing plate 30a angle that tilts, but the time side 91,92 keep cooperating, tilt with respect to bearing plate 30a to allow the anchor pole axis once more.
Figure 13 to 15 shows the embodiment that head 13b is provided with a key projection 100, and the respective grooves 101 that this key projection is arranged among the boss 42b with bearing plate 30b interacts.In operation, key projection 100 is assemblied in the groove 101, and prevents relatively rotating between bearing plate 30b and the supporting base 10.
In illustrated embodiment, key projection 100 extends to the lower end of head from the circular top part of rounded head 13b.When supporting base member 10 tilts an angle with respect to bearing plate 30b, key projection 100 is still cooperated with groove 101.
Figure 15 A and B show the rounded head 13b and the bearing plate 30 that how to make the supporting base member in operation and interact, and key projection 100 is fitted into groove 101.
Note only showing the rounded head 13b of supporting base member 10 in the accompanying drawings.In Figure 14 C, the other parts with dashed lines 110 of supporting base member 10 marks.
Figure 16 to 18 shows an alternative embodiment, and wherein groove 120 is arranged among the rounded head 13c of supporting base 10, and complementary key projection 121 is installed among the boss 42c of bearing plate 30c.Except key projection 121 is arranged on bearing plate 30c neutralisation tank 120 is arranged among the rounded head 13c, the operation of the embodiment of Figure 16 to 18 is similar to the operation of the embodiment of Figure 13 to 15.
Figure 19 and 20 shows another kind of mode, and wherein supporting base member 10 can cooperate with bearing plate.In this embodiment, the rounded head 13d of supporting base member 10 is provided with a plurality of key surfaces 150, and key surface 150 has the edge 151 that limits border between each key surface 150.The admittance key surface 152 of the complementation of belt edge 153 is arranged among the admittance boss 42d of bearing plate 30d.
In operation, the key surface 150 of head 13d cooperates with the key surface 152 of the complementation of boss 42d, prevents relatively rotating between supporting base member 10 and the bearing plate 30d.
Figure 21 and 22 shows another embodiment, and this embodiment uses key surface 160 and the edge 161 on the head 13c.These key surfaces 160 are similar to the key surface of Figure 19 in operation, but quantity still less.Complementary key surface is arranged on the boss 42e of bearing plate 30e.They comprise complementary surface 163 and edge 164.
The same with top embodiment, also have other to promote the rounded head of supporting base member 10 to cooperate with bearing plate so that the layout that the supporting base member does not rotate and anchor cable is non-warping.For example, the embodiment of Figure 13 to 18 shows the configuration of having only a key in groove.On the boss of the relative both sides of nose circle face or bearing plate, also can be provided with two keys or plural configuration are arranged in the groove.
Cause between head and the bearing plate produce the configuration that hinders in addition can also use with the anchor pole tension assembly different in conjunction with the embodiment of Fig. 1 to 10 narration in.In fact, interactional anchor pole tension assembly can be used any configuration in these configurations between any head that needs tension element and the bearing plate.
Disclose another embodiment of tensioning apparatus 1 among Figure 23, wherein pedestal 5 does not comprise the cadre, but only comprises tube 7 and the wedge 6 that is used for clamping anchor cable 3.In order to limit the rotation of supporting base member 10 with respect to anchor cable, but allow lengthwise movement (supporting base member 10 keys are connected to cadre 8 mode among the similar front embodiment), " flower-shaped " insert 40 is set in chamber 35, and its profile is configured to admit the single strand of bolt shaft 3.By this way, supporting base member 10 directly cooperates with bolt shaft, rather than cooperates with pedestal 5 among the previous embodiment of picture.Because supporting base member 10 is the lengthwise movement of edge axle separately, but must follow along the route of the single strand of strand length screw winding, so the configuration of Figure 23 is preferred like that not as previous configuration.In addition, because cadre 7 existence, the supporting base member can not be isolated with anchor cable as previous configuration, and anchor cable might be distorted when tensioning like this.But the supporting base member prevents the resistance that anchor cable is distorted when the tensioning with some are provided cooperating of anchor cable really.
In the described in the above any way, actuator 16 is arranged to admit the main body 11 of supporting base member 10, and extends at the upper section of pedestal 5.Actuator 16 inside are threaded, so as with external screw-thread main body 11 engagement of supporting base member 10, and comprise that a shoulder 17, this shoulder are suitable for locating to cooperate with the shoulder 31 that forms on the pedestal 5 at the tie point between tube portion 7 and the cadre 8 (if existence).By this way, actuator cooperates with pedestal (by the adjacency of shoulder 17 and 31) and supporting base member 10 (by the cooperation of the screw thread of cooperating on these members) simultaneously.
Actuator can make the tensioning of anchor pole along the rotation of a direction (being seen as clockwise direction for right-hand side or along anchor pole from near-end 3b in graphic form).Actuator 16 is suitable for cooperating with driver, and to give actuator with this rotation, this actuator is shaped as to cooperate and drives connector (rod member) to transmit rotatory force.
Actuator is provided with end profile 20 on actuator end portion 19, its end driver with the special shape on end-to-end relation and the rod member (dolly) 200 cooperates (seeing Figure 27 to 32), will describe in more detail below.More preferably show this end profile among Figure 24 to 26.
Installation process
At Figure 27 with in 28 disclosed phase I, anchor pole 2 inserts the boring 501 that is formed in the rock stratum 500.What be assembled to anchor pole 2 is bearing plate 30 and anchor pole tensioning apparatus 1, and anchor pole tensioning apparatus 1 is positioned at projection and crosses near the anchor pole near-end 3b of boring 502.In this stage, anchor pole 2 is not that fixed point is anchored in the boring 502, and is to use resin cartridge and/or mechanical anchor part near anchor pole is installed in the blind end (not shown) of boring.In order to enable fixed point anchoring (by pulverizing and hybrid resin tube or use mechanical anchor part), anchor pole 2 needs to rotate, and normally the right hand rotates.
For this rotation is come into force, shown in Figure 27 and 28, rod member 200 is installed on the near-end 3b of bolt shaft 3.With the anchor cable drive pattern rod member 200 is set, so that the end of bolt shaft is assemblied in the keeper 220, this keeper is arranged in the anchor cable drive part of rod member 200.In Figure 27, show sheath 207 best and withdraw fully, so that the driving end 204 of sheath can not cooperate the actuator 6 of tensioning apparatus 1.
Rod member is assembled to an actuating device (not shown) by axle 202, the rig of for example digging up mine.This rig applies driving to axle 202, and it cooperatively interacts by spline 217,218, is delivered to anchor cable drive part 207 successively, allows anchor pole 3 to rotate by this, so that the fixed point anchoring of anchor pole 2 to be provided.Usually, along bolt shaft thrust is applied to anchor pole, further enters boring 501 to promote anchor pole, 500 face 502 moves towards the rock stratum to make plate 30.So anchor pole is placed on the position shown in Figure 29 and 30, anchor cable is anchored at this position by resin being set or enabling mechanic anchor by fixed point.
Second stage is implemented after the fixed point anchoring.In this stage, move forward with respect to center driver 205 by sheath and to enter relevant position shown in Figure 31 and 32, make rod member move into the tensioning pattern.In this position, sheath 208 moves forward, so that the tooth of sheath cooperates with actuator, the end of anchor cable keeps cooperating with anchor cable drive part 207 simultaneously.Enter the tensioning pattern by rod member 200, anchor cable drive part 207 becomes and sheath 208 disengagings, and is not therefore driven, and can be independent of this power transmission shaft and sheath 208 rotations by power transmission shaft 202.So actuator can rotate with respect to anchor cable 3 by rod member.
As in the accompanying drawing 31 best shown in, the cooperation characteristics between rod member and the actuator are diameters that the diameter of rod member is not more than actuator.This has significant advantage in many mining are used, if because compare (form that is generally nut) with the situation of using the traditional rod member that is installed in the actuator top, it makes rod member be in more restricted situation.If use " wooden jack " firm and haulage gear as drill hole and installation anchor cable, this has special advantage.This wooden jack usually the core by jack head framework in conjunction with the opening that is restricted.Because the minimizing of rod member diameter (comparing with more traditional rod member) is not needing under the mobile wooden jack situation, has been found that and uses rod member 200 tensioning anchor poles to possess practical possibility.
Cooperate simultaneously in case rod member 200 is installed into the actuator of anchor cable axle and tensioning apparatus, actuator is activated, and keeps anchor cable axle static (by cooperating of anchor cable axle and anchor cable drive part) simultaneously.The rotation of actuator makes actuator 6 unclamp from supporting base member 11, and this causes the supporting base member to move away pedestal 5 successively.In preliminary moving, the mobile plate 30 that forces of supporting base member cooperates with rock surface 502.Rock panel 30 is moved further towards rock surface with preventing supporting base member 6 cooperating of rock surface 502, and because supporting base component head 13 and any distortion that also prevents the supporting base member cooperating of plate 30.
Under rod member 200 drove, being rotated further of actuator 6 forced the supporting base head to continue to move away pedestal, and this causes increasing by the load that actuator is created on the pedestal 5, causes the result that anchor cable 2 is pulled out from boring.This tensile force that is applied to pedestal is made anchor cable be in tensioning state by the counterforce counteraction that cooperation applied of plate 30 against rock layer surface.
As Figure 35 and 36 best shown in, in case enough pulling force have been applied to anchor cable, rod member 200 is removed, and makes by this to have being tensioned of tensioning apparatus and still be secured in place.
The advantage that the tensioning apparatus of describing in the above form, rod member and installation process have is: rotating actuator can apply axial force to anchor cable (passing through pedestal) under the situation that does not cause the anchor cable distortion.In illustrated particular form, moving-member (supporting base member) breaks away from anchor cable, and prevents that by the cooperation of supporting base head abuts plate 30 whole tensioning apparatus is distorted.In addition, tensioning apparatus has the form of relative compact, thereby, by using the drive link device, can easily control on the spot, and the rig of the standard of use just can realize the tensioning of anchor pole, thus save operate in the past in the needs of special-purpose tightening drive.In addition, the space often was limited during mining was used, and the driving rod member of relative compact form can use in the confined space.
In the claim below and the general introduction of front, except the context special requirement, because language performance or necessary implication, word in the literary composition " comprising " is interpreted as the implication of " including ", and feature is stated as and can be combined with the other feature among the different embodiment.
Under the prerequisite that does not break away from the present invention spirit and purport, can be out of shape and revise previously described part.
Claims (17)
1. tension assembly that is used for rock bolt, tension assembly comprise and are used for the engagement head that cooperates with rock surface directly or indirectly that wherein, the profile of engagement head comprises at least one key surface, rotates with respect to rock surface to prevent engagement head.
2. tension assembly according to claim 1 is characterized in that, engagement head is arranged to cooperate with rock surface by the adjacency plate-shaped member, and wherein, engagement head prevents that by at least one key surface this engagement head from rotating with respect to plate-shaped member.
3. tension assembly according to claim 2 is characterized in that key surface is formed with one or more flat surfaces on engagement head.
4. tension assembly according to claim 2 is characterized in that, key surface comprises from one or more sides of the radial axis projection of engagement head.
5. tension assembly according to claim 4 is characterized in that, one or more sides from the central area towards the peripheral radial projection of engagement head.
6. tension assembly according to claim 2 is characterized in that, key surface is positioned on from the head the peripheral outward extending projection.
7. tension assembly according to claim 2 is characterized in that key surface is positioned at the groove that extends into head.
8. according to the described tension assembly of the arbitrary claim in front, it is characterized in that engagement head forms the part of supporting base member, this supporting base member comprises a passage, and rock bolt extends by this passage.
9. tension assembly according to claim 8, it is characterized in that, the supporting base member comprises the inner surface that limits described passage, this inner surface comprises and is installed to anchor pole or is formed on the surface that the abutment in the anchor pole is cooperated, and prevents at least in one direction that to provide betwixt the supporting base member from cooperating with respect to the forward that abutment rotates around anchor pole.
10. one kind comprises according to the assembly of the described tension assembly of arbitrary claim among the claim 2-9 with the plate-shaped member that is arranged to directly cooperate with rock surface, plate-shaped member comprises the key surface of at least one plate, it is cooperated with at least one key surface of engagement head, to prevent rotation therebetween.
11. the engagement head that the tension assembly that is used for anchor pole is used, this engagement head is used for directly or indirectly cooperating with rock surface, and the profile of this engagement head comprises at least one key surface, rotates with respect to rock surface to prevent engagement head.
12. engagement head according to claim 11 is characterized in that, at least one key surface is different with the described key surface of claim 2-7.
13. one kind is used for the matable assembly that cooperates between rock surface and tension assembly, this matable assembly comprises:
Be arranged to the plate-shaped member that directly cooperates with rock surface, plate-shaped member comprises the key surface of at least one plate; And
Be arranged to cooperate or constitute the supporting base member of a tension assembly part with tension assembly, the supporting base member has head, and this head comprises the key surface of at least one head, wherein, the key surface of head and the key surface of plate are suitable for cooperating, and rotate with respect to rock surface to prevent head.
14. matable assembly according to claim 13 is characterized in that, the key surface of head is different with the key surface of the described head of claim 2-7.
15. a rock bolt assembly comprises: the anchor pole with axis; In the face of and against the supporting base member of lithosphere, anchor pole is arranged to extend through the supporting base member; And be installed to anchor pole or be formed on the interior abutment of anchor pole, wherein, the cooperation surface that provides forward to cooperate therebetween is provided for abutment and supporting base member, thereby prevents that at least one direction the supporting base member from rotating with respect to abutment around the anchor pole axis.
16. rock bolt assembly according to claim 15 is characterized in that, also comprises according to claim 13 or 14 described matable assemblies, wherein the supporting base member forms the part of matable assembly.
17. a method that prevents that tension assembly from rotating with respect to rock surface, tension assembly comprises the supporting base member, and this method comprises:
The location plate-shaped member contacts with rock surface;
Positioning support seat member contacts with plate-shaped member; And
Make the correspondent button surface in the key surface butt plate-shaped member in the supporting base member.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2009901318A AU2009901318A0 (en) | 2009-03-26 | Tension assembly | |
| AU2009901318 | 2009-03-26 | ||
| AU2009904751A AU2009904751A0 (en) | 2009-09-30 | Engagement head for tensioning assembly | |
| AU2009904751 | 2009-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101915111A true CN101915111A (en) | 2010-12-15 |
Family
ID=42814298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101808192A Pending CN101915111A (en) | 2009-03-26 | 2010-03-26 | The engagement head that is used for tension assembly |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100266345A1 (en) |
| CN (1) | CN101915111A (en) |
| AU (1) | AU2010201212A1 (en) |
| CA (1) | CA2697711A1 (en) |
| ZA (1) | ZA201002116B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397782A (en) * | 2020-03-25 | 2020-07-10 | 深圳市工勘岩土集团有限公司 | Stress estimation method for pre-stressed anchor cable |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101471486B1 (en) * | 2014-02-04 | 2014-12-10 | 삼진스틸산업(주) | Removable ground anchor body using Rotation |
| AU2017261496B2 (en) * | 2016-11-14 | 2023-12-14 | JJ & D Innovations Pty Ltd | Load support system |
| ZA201907183B (en) * | 2018-11-02 | 2023-09-27 | Epiroc Holdings South Africa Pty Ltd | Cable anchor with anti-spin coupler |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO159678C (en) * | 1982-05-14 | 1989-01-25 | Weidmann H Ag | MOUNTAIN SECURING ANCHOR. |
| DE3564005D1 (en) * | 1985-01-17 | 1988-09-01 | Weidmann H Ag | Anchor for wall consolidation in cavity structures |
| CA1331705C (en) * | 1988-07-26 | 1994-08-30 | Richard Roy Wood | Rock anchor |
| NO900391L (en) * | 1989-02-06 | 1990-08-07 | Weidmann H Ag | PROCEDURE, ANCHORING ELEMENT AND TENSION FOR TENSIONING OF A BAR. |
| US20060285929A1 (en) * | 2005-06-16 | 2006-12-21 | Valgora George G | Bearing plate having tab |
| US7625155B1 (en) * | 2009-03-25 | 2009-12-01 | Safe Overhead Systems, Inc. | Mine roof cable bolt assembly |
-
2010
- 2010-03-25 CA CA2697711A patent/CA2697711A1/en not_active Abandoned
- 2010-03-25 AU AU2010201212A patent/AU2010201212A1/en not_active Abandoned
- 2010-03-25 US US12/731,531 patent/US20100266345A1/en not_active Abandoned
- 2010-03-25 ZA ZA2010/02116A patent/ZA201002116B/en unknown
- 2010-03-26 CN CN2010101808192A patent/CN101915111A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397782A (en) * | 2020-03-25 | 2020-07-10 | 深圳市工勘岩土集团有限公司 | Stress estimation method for pre-stressed anchor cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2697711A1 (en) | 2010-09-26 |
| ZA201002116B (en) | 2010-12-29 |
| US20100266345A1 (en) | 2010-10-21 |
| AU2010201212A1 (en) | 2010-10-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101215 |