CN202899131U - Yield anchoring tool structure and yield anchoring device with same - Google Patents
Yield anchoring tool structure and yield anchoring device with same Download PDFInfo
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- CN202899131U CN202899131U CN 201220594794 CN201220594794U CN202899131U CN 202899131 U CN202899131 U CN 202899131U CN 201220594794 CN201220594794 CN 201220594794 CN 201220594794 U CN201220594794 U CN 201220594794U CN 202899131 U CN202899131 U CN 202899131U
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- anchor device
- power muscle
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Abstract
The utility model discloses a yield anchoring tool structure and a yield anchoring device with the same. The yield anchoring tool structure comprises a force rib and an extrusion sleeve disposed on the force rib. The extrusion sleeve wraps the force rib and the inner wall face of the extrusion sleeve is meshed with the surface of the force rib. The utility model further relates to a yield anchoring device with the yield anchoring tool structure. Anchoring between the extrusion sleeve and the force rib is achieved by friction between the two. During relative slide of the extrusion sleeve and the force rib, damage of the force rib is avoided, and accordingly base material performance of anchoring parts is guaranteed effectively.
Description
Technical field
The utility model belongs to ground anchorage and engineering protection technical field, relates in particular to a kind of press fastening device that allows of pressing anchor device structure and comprising it that allows.
Background technology
Anchor pole and anchor cable are the main devices of rock-reinforcing, and their common loading characteristic is that distortion must be coordinated mutually with the distortion of Rock And Soil, and the deflection of rock mass has surpassed the maximum deformation quantity that allows and will have been broken.For special geological phenomenon (intense impact that causes such as the rock burst under the deep formation high pressure condition or large deformation, earthquake and blast and vibration deformation etc.), develop a kind of load-bearing device that can keep predetermined force to work on, very necessary in actual applications.Existing such device comprises pressure-relieving achor bar (or claiming the surrender anchor pole) or allows presses anchor cable etc.
The whole stress of pressure-relieving achor bar or anchor cable is " bullet is moulded " property seemingly.When the deflection of rock mass makes the pulling force of anchor pole or anchor cable surpass the design yield force, anchor bar body between interior anchoring section and the outer anchoring section or anchor cable cognition are keeping in the constant situation of pulling force automatic " elongation ", it is the same that erect image is done the tension test of steel, tensile stress reaches yield limit, pulling force is constant, and the body of rod increases.
In recent years, along with both at home and abroad to the deepening continuously of ground anchorage field understanding, the adverse effect to engineering safety and cost of bringing for overcoming rock mass deformation, have yielding property can anchor device constantly be developed and use.
A kind of friction sleeve cartridge type large deformation anchor rod is disclosed such as Chinese patent application 201110061360.9 and 201110061303.0, mainly comprise outer nut, backing plate, cylindricality friction piece, friction sleeve, the body of rod, between cylindricality friction piece and the friction sleeve friction structure is arranged, when distortion overcomes the resistance of generation of friction structure, cylindricality friction piece and friction sleeve relative sliding, the anchor pole elongation is because the friction structure relative complex, cause device to make difficulty, assembling is inconvenient.
Chinese patent application 201010254537.2 discloses a kind of applicable mining compatible deformation energy-absorption anchor rod of heavily stressed large deformation rock mass for another example, mainly formed by the extensible bolting section straight-bar body and the crooked body of rod of energy-absorbing section, and be provided with thread segment near the crooked body of rod one end of energy-absorbing section, be rotary with clamp nut at thread segment, be between the crooked body of rod of clamp nut and energy-absorbing section at thread segment and be set with steel tray; The crooked body of rod elongation of energy-absorbing section back pull can change.
Chinese patent 200920003238.4 discloses a kind of high-drag constant-resistance and has significantly allowed the pressure anchor cable, allow the pressure ground tackle form by the high-drag constant-resistance behind steel strand cable body, pallet and the pallet, allowing and pressing ground tackle is inside and outside taper lock nested structure, and the lock core profile is two lobes or many valve structures of male-tapered inner cylinder tooth; The lock tube structure is the outer cylinder inner conical surface and is provided with the structure of stopping means.Chinese patent application 201110091753.4 discloses a kind of pressure anchor device structure that allows, comprise extrusion head, allow gland cylinder and dowel, described extrusion head be the bottom with the cylinder of the conical surface, be flexibly connected with dowel and be integral; Described extrusion head places and allows in the gland cylinder, allow gland cylinder inwall be provided with the raised face (RF) that matches with the conical surface of extrusion head bottom, allow the gland cylinder be preferably inwall with the steel pipe of lug, nib, the raised face (RF) of the end of lug, nib for matching with the conical surface of extrusion head, allowing of above-mentioned two patent disclosures presses anchor device structure all comparatively simple, easy to assembly.
Chinese patent 200580031585.2 discloses a kind of capable of regulating surrender rock bolt, comprising: the elongate element tensioning support member, and itself and at least one fluting part interact; And accommodating member, described accommodating member can accommodating elongate element tensioning support member, and the part of will slotting remains between described elongate element tensioning support member and the accommodating member, wherein, the elongate element tensioning support member extends beyond accommodating member one length, this length is corresponding to the predetermined compliancy before the ultimate failure, and this pressure-relieving achor bar can with body of rod drawing-down, affect its performance when relative slippage.
Chinese patent 200820104437.X discloses a kind of pressure ground tackle that allows, comprise extruded sleeve and anchoring medium, the extruding of extruded sleeve and anchoring medium is anchored to form on the presstressed reinforcing steel and allows the pressure ground tackle, described anchoring medium is that cross section is circular spring steel wire, described presstressed reinforcing steel or steel strand or steel tendon or with the unbonded prestressing tendon of sleeve pipe, described unbonded prestressing tendon is made by steel strand or steel tendon.Chinese patent application 200910190942.X discloses a kind of quake-proof anchor rope, comprise free segment and anchoring section, anchoring section arranges the antidetonation anchor device, the antidetonation anchor device comprises loaded plate, antidetonation ground tackle and permanent ground tackle, anchor cable passes loaded plate and passes successively the antidetonation ground tackle and permanent ground tackle, the antidetonation ground tackle is for setting the slidably extruded sleeve structure of maximum anchored force, the extruded sleeve inner surface has anti-slip veins, the antidetonation ground tackle is pressed on the loaded plate inboard, permanent ground tackle is the standard extruded sleeve, between permanent ground tackle and the antidetonation ground tackle determining deviation is set.Allowing of this two patent disclosure presses anchor device structure similar, all utilizes the extruding of extruded sleeve to produce resistance.
The utility model content
The utility model provides a kind of pressure anchor device structure that allows, and this anchor device structure yield force is adjustable, and during slippage to power muscle injury not.
A kind of pressure anchor device structure that allows comprises power muscle and the extruded sleeve of being located on the power muscle, and described extruded sleeve bonds described power muscle, and internal face and the phase interlock of power muscle surface.
It is smooth that extruded sleeve plays the initial equilibrium state inner surface, and after being squeezed, its inner surface can produce skid resistance with the complete interlock of steel strand or rod iron surface; The opposition that is subject to when extruded sleeve and power muscle is during greater than the resistance between them, and extruded sleeve and power muscle produce the constant force slippage, and when extruded sleeve and power muscle were subject to less than the resistance between them, extruded sleeve and power muscle played the anchoring effect.When the slippage of the relative power muscle of extruded sleeve, extruded sleeve does not damage the power muscle, and the mother metal performance of influence power muscle not.
Preferably, described power muscle is that steel strand or surface be the rod iron of spiral lamination structure, owing to rod iron and steel strand surface all have lines, and lines uniformity everywhere, so that the constant resisting force between extruded sleeve and power muscle.
More preferably, described rod iron outsourcing disrance sleeve or coating separation layer, the disrance sleeve of outsourcing is close to the rod iron surface, and capable muscle can not bondd with Anchor Agent in the anchor hole, and insolated layer materials can be selected industry waxing etc.
Described steel strand are non-bending steel cable, and non-bending steel cable can be the commercially available prod, and the outsourcing disrance sleeve is managed such as PE.
The utility model also provides a kind of described manufacture method of pressing anchor device structure that allows, and comprising: the steel pipe socket that inner surface is smooth is on the power muscle, and the radial compression steel pipe bonds on the power muscle it, after the extrusion modling, the steel pipe axial elongation, internal face and the phase interlock of power muscle surface form extruded sleeve; The hardness of described extruded sleeve is less than the hardness of power muscle.
The utility model provides again a kind of pressure anchor device that allows, and comprises the described pressure anchor device structure that allows.
Describedly allow to press anchor device be pressure-relieving achor bar, allow and press anchor cable, pressure dispersing type allow to press anchor cable or bridge girder falling shock-damping device.
Pressure-relieving achor bar or allow and press anchor cable mainly to comprise: the power muscle, extruded sleeve is arranged on the lock piece of power muscle head, and is set on the power muscle and the power muscle is divided into the bearing plate of interior anchor section and outer anchor section, and extruded sleeve is arranged on the outer anchor section or interior anchor section of power muscle.
Pressure dispersing type allows presses anchor cable to comprise outer anchor section and interior anchor section, and interior anchor section comprises the described pressure anchor device structure that allows, and seals described loaded plate and the capsule of pressing anchor device structure that allow.
With respect to the existing pressure anchor device structure that allows, the utility model beneficial effect is:
(1) by the relative slippage of extruded sleeve with the power muscle, can make to be obtained part by the distortion of Bolted Rock Masses and discharge, thereby effectively protect anchorage effect, reach that anchoring body is long-acting, the target of safe anchoring.
(2) by adjusting the parameter of extruded sleeve, can control and the power value of regulating the relative slippage of extruded sleeve, thus control anchored force size.
(3) anchorage effect between extruded sleeve and the power muscle is to realize by mutual frictional force, and when doing relative slippage, extruded sleeve can be to power muscle injury, thereby has effectively protected the mother metal performance of anchoring piece.
(4) this allows and presses anchor device structure simple, easy for installation, low cost of manufacture.
Description of drawings
Fig. 1 is that the utility model allows the axial section of pressing anchor device structure.
Fig. 2 is that the utility model allows the radial section figure that presses anchor device structure.
Fig. 3 is the structural representation of the front steel pipe of extruding.
Fig. 4 is that the utility model allows and presses anchor device structure to be applied in structural representation on anchor pole or the anchor cable.
Fig. 5 comprises the utility model to allow pressure-relieving achor bar (rope) structural representation of pressing anchor device structure,
(a) press ground tackle to be located at outer anchor section for allowing, (b) press ground tackle to be located at interior anchor section for allowing.
Fig. 6 comprises the utility model to allow the pressure dispersing type of pressing anchor device structure allow the structural representation of pressing anchor cable.
Fig. 7 allows the pressure dispersing type of pressing anchor device structure allow the structural representation of pressing anchor cable for the another kind of the utility model that comprises.
Fig. 8 comprises the utility model to allow the structural representation of the bridge girder falling shock-damping device of pressing anchor device structure.
Fig. 9 allows the structural representation of the bridge girder falling shock-damping device of pressing anchor device structure for the another kind of the utility model that comprises.
The specific embodiment
As depicted in figs. 1 and 2, a kind of pressure anchor device structure that allows comprises power muscle 2 and extruded sleeve 1, extruded sleeve 1 bond stress muscle 2, and internal face and the phase interlock of power muscle surface.Power muscle 2 is different according to mode of occupation, can select steel strand or shaggy rod iron, and wherein the rod iron best surfaces is threaded, and the resistance of extruded sleeve and rod iron is evenly distributed.
Extruded sleeve can assemble as follows: at first one section smooth steel pipe 70 (shown in Figure 3) of internal face is enclosed within on the power muscle 1, then utilize extruder vertically to push steel pipe, after extruding is finished, steel pipe axial elongation and bond stress muscle 1, internal face and the surface interlock of power muscle form extruded sleeve 1.Realize as above assembling, the hardness of steel pipe also should be lower than the hardness of power muscle.
Present embodiment allows presses the specification of steel pipe in the anchor device structure to be: external diameter 34mm, wall thickness 9mm, length 60mm, and No. 45, material is through modified; The steel strand external diameter is 15.24mm, Rf=1860MPa; After 50 tons of extruder moulding, extruded sleeve is of a size of: external diameter 30mm, length 70mm, and after tested, load P=105KN is pressed in allowing of extruded sleeve 1 relative steel strand generation slippage, and slip length can arrive 400mm, allows press load stable.
As shown in Figure 4, this allows presses anchor device structure can also comprise the lock piece 3 that is arranged on the power muscle 2 and is wrapped in disrance sleeve 22 on the power muscle 2, distance between lock piece 3 and the extruded sleeve 1 is maximum skidding distance 60, and disrance sleeve 22 is mainly used in stoping power muscle 2 and Anchor Agent bonding.
As shown in Figure 5, a kind of comprise above-mentioned allow press anchor device structure allow the pressure anchor device, can be pressure-relieving achor bar or allow the pressure anchor cable, this allows presses anchor device mainly to comprise power muscle 2, bearing plate 4, lock piece 3 and extruded sleeve 1, and bearing plate 4 is set on the power muscle 2 and the power muscle is divided into interior anchor section and outer anchor section.
When power muscle 2 was steel strand, this anchor device was anchor cable, and when power muscle 2 was rod iron, this anchor device was anchor pole.As required, the interior anchor section of power muscle can be installed and be sacrificed drill bit, expansion shell type anchoring head, retaining assistant, resin explosive roll and stir first-class.
As shown in Figure 6 and Figure 7, a kind of pressure dispersing type allows the pressure anchor cable, comprise three drag-lines 36 (can adjust as required) and anchor plate 31, anchor plate 31 is divided into outer anchor section and interior anchor section two parts with drag-line, outer anchor section is provided with the outer anchor head 33 of being close to anchor plate 31, and it is fixing with bracing cable clamp 30 that drag-line 36 passes outer anchor head 33 places; Interior anchor section comprises that consisting of the utility model with drag-line 36 allows extruded sleeve 37, loaded plate 34, block piece 38 and the capsule 35 of pressing anchor device structure, capsule 35 and loaded plate 34 cooperate to consist of and surround extruded sleeves 37, block piece 38 and the seal chamber of drag-line 36 between the two.Wherein loaded plate 34 can be connected, and also can be split, and namely loaded plate 34 cooperates all allow press ground tackle or only seal one of them and allow the pressure ground tackle with capsule 35.For fear of the drag-line 36 between anchor plate 31 and the loaded plate 34 and Anchor Agent bonding, this section drag-line is provided with disrance sleeve 32, and the distance between extruded sleeve 37 and the block piece 38 is slippage ultimate range 60.
Such as Fig. 8 and shown in Figure 9, about two bridge beams 100 be placed on the bridge pier 200 by bearing 300 respectively, bridge beam 100 belows or bridge pier 200 sidepieces are provided with and fixedly allow the backing plate 101 of pressing ground tackle, be connected with a cables 40 between two backing plates 101, the part that backing plate 101 is passed at the cable two ends is provided with extruded sleeve 41 and stop 42, extruded sleeve 41 and cable 40 consists of the pressure anchor device structure that allows of the present utility model, and capsule 43 and backing plate 101 form sealing and allow the cavity of pressing anchor device structure.Fig. 8 is connected the position that difference is that the cable two ends connect with Fig. 9 different, and Fig. 8 is between two bridge beams 100, and Fig. 9 is between bridge beam 100 and the bridge pier 200.
Above-mentioned allowing presses anchor cable, pressure-relieving achor bar, pressure dispersing type to allow pressure anchor cable and bridge girder falling shock-damping device all adopt the pressure anchor device structure that allows of the present utility model, the disclosed structure of all the other structures and prior art can be the same or different, and it allows presses the principle of slippage identical.
Claims (6)
1. one kind allows the pressure anchor device structure, comprises power muscle (2) and is located at extruded sleeve (1) on the power muscle (2), it is characterized in that described extruded sleeve (1) bonds described power muscle (2), and internal face and the surperficial phase interlock of power muscle (2).
2. the pressure anchor device structure that allows as claimed in claim 1 is characterized in that, described power muscle (2) is that steel strand or surface are the rod iron of spiral lamination structure.
3. the pressure anchor device structure that allows as claimed in claim 2 is characterized in that, described rod iron outsourcing disrance sleeve or coating separation layer.
4. the pressure anchor device structure that allows as claimed in claim 2 is characterized in that, described steel strand are non-bending steel cable.
5. one kind allows the pressure anchor device, it is characterized in that, comprises the arbitrary described pressure anchor device structure that allows of claim 1～4.
6. the pressure anchor device that allows as claimed in claim 5 is characterized in that, describedly allows to press anchor device be pressure-relieving achor bar, allows and press anchor cable, pressure dispersing type allow to press anchor cable or bridge girder falling shock-damping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220594794 CN202899131U (en) | 2012-11-12 | 2012-11-12 | Yield anchoring tool structure and yield anchoring device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220594794 CN202899131U (en) | 2012-11-12 | 2012-11-12 | Yield anchoring tool structure and yield anchoring device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202899131U true CN202899131U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220594794 Expired - Lifetime CN202899131U (en) | 2012-11-12 | 2012-11-12 | Yield anchoring tool structure and yield anchoring device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202899131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953376A (en) * | 2012-11-12 | 2013-03-06 | 杭州图强工程材料有限公司 | Pressure-release anchor structure and manufacture method thereof |
-
2012
- 2012-11-12 CN CN 201220594794 patent/CN202899131U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953376A (en) * | 2012-11-12 | 2013-03-06 | 杭州图强工程材料有限公司 | Pressure-release anchor structure and manufacture method thereof |
| CN102953376B (en) * | 2012-11-12 | 2015-06-03 | 杭州图强工程材料有限公司 | Pressure-release anchor structure and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |