CN105178313A - Yielding type anchor rod assembly - Google Patents
Yielding type anchor rod assembly Download PDFInfo
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- CN105178313A CN105178313A CN201510528174.XA CN201510528174A CN105178313A CN 105178313 A CN105178313 A CN 105178313A CN 201510528174 A CN201510528174 A CN 201510528174A CN 105178313 A CN105178313 A CN 105178313A
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- anchor rod
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- inner cylinder
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- pressure type
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Abstract
The invention discloses a yielding type anchor rod assembly which comprises an anchor rod body and a yielding mechanism. The yielding mechanism is of a compression cylinder structure and comprises an inner cylinder body, an outer cylinder body, a cylinder cover, a piston ring and piston rods. The inner cylinder body is a hollow cylindrical body, the cylinder cover is provided with a central hole and rod holes matched with the piston rods, and the anchor rod body penetrates through the hollow portion of the inner cylinder body and the central hole of the cylinder cover and is linked with the piston rods. The inner cylinder body, the outer cylinder body and the cylinder cover form a working cavity with an annular cross section. The piston ring is arranged in the working cavity, the top of the piston ring is connected with at least two piston rods, and compression media are arranged between the bottom of the piston ring and the bottom of the working cavity. The piston rods penetrate out from the rod holes and can be driven by the anchor rod body to move. A pressure relief channel is formed in the bottom of the inner cylinder body, and a safety valve capable of being opened and closed automatically according to a preset pressure value is mounted in the pressure relief channel. According to the yielding type anchor rod assembly, the allowed deformation is large, the bearing capacity is high, the resistance is constant, and the requirement for large deformation of surrounding rocks can be met.
Description
Technical field
The present invention relates to a kind of geotechnical engineering anchor device, particularly one allows pressure type anchor pole assembly.
Background technology
Anchor pole is the most frequently used geotechnical engineering anchor structure, has a large amount of application in fields such as slope support engineering, tunnel surrounding supporting, mining tunnel supportings; Conventional anchor is for substantially to belong to rigid structures, little to the Tolerance of distortion; , deflection poor in rock-mass quality is large, and during the dynamic loading such as earthquake, blasting vibration, anchor pole is pulled off and then causes the phenomenon of engineering unstable failure very many; The situation of reply earthquake, blasting load effect and country rock large deformation, adopts and can allow that the anchor pole of large deformation is good engineered solution; At present, have the novel anchor rod that large deformation is provided by anchor bar body own material ductility, this kind of anchor structure and common bolt difference little, but require high to the ductility of material, and the deflection of allowing is general still less, supporting capacity is low, resistance is non-constant, can not meet country rock large deformation needs.
Therefore, just need one allow pressure type anchor pole assembly, its deflection of allowing is comparatively large, and supporting capacity is high, constant resisting force, can meet country rock large deformation needs.
Summary of the invention
In view of this, the object of the present invention is to provide one allow pressure type anchor pole assembly, its deflection of allowing is comparatively large, and supporting capacity is high, constant resisting force, can meet country rock large deformation needs.
The pressure type anchor pole assembly that allows of the present invention, comprises anchor rod body and is located on anchor rod body and allow press mechanism for what allow pressure, described in allow press mechanism be compression cylinder structure and comprise inner cylinder body, outer cylinder body, cylinder cap, piston ring and piston rod; Described inner cylinder body is hollow cylinder, the rod aperture that described cylinder cap is provided with centre bore and coordinates with piston rod, and described anchor rod body passes from the hollow part of inner cylinder body and the centre bore of cylinder cap and links with piston rod; Described inner cylinder body, outer cylinder body and the ringwise working chamber of cylinder cap Formation cross-section, described piston ring is located in working chamber, the top of described piston ring is connected with at least two piston rods, bottom bottom and working chamber between be provided with compressed media, described piston rod passes from rod aperture and can move under the drive of anchor rod body; The bottom of described inner cylinder body is provided with pressure release passage, is provided with the safety valve that can automatically open according to preset pressure value and close in described pressure release passage.
Further, described in allow press mechanism also comprise connecting ring, the top of described piston rod is fixedly connected with connecting ring.
Further, free segment one end of described anchor rod body is provided with external screw thread and is connected with the spiro connecting piece matched, and described spiro connecting piece is located at the outside of connecting ring; Rock mass deformation orders about piston rod movement to spiro connecting piece during anchor rod body generation axial tension by squeeze flow ring.
Further, pad is provided with between described spiro connecting piece and connecting ring.
Further, described compressed media is liquid; This assembly also comprises the liquid storage box for storing the compressed media flowed out from pressure release passage.
Further, this assembly also comprises warning system, and described warning system comprises processor, alarm and is located at the liquid level sensor of liquid storage box, and described alarm and liquid level sensor are all connected with processor; Described liquid level sensor detects the liquid level of compressed media in liquid storage box and liquid level signal is reached processor, and described processor controls the keying of alarm.
Further, described warning system also comprises the wireless communication module be connected with processor, and liquid level signal is reached external terminal by corresponding cordless communication network by described wireless communication module.
Further, described piston ring is connected with the equally distributed piston rod of 2-8 root.
Further, the peripheral part of described anchor rod body anchoring section is provided with for stopping the block piece that Anchor Agent flows out from jewel hole, and described block piece to be enclosed within anchor rod body and coaxial with anchor rod body.
Further, described block piece is boss-shaped, and the miner diameter end of boss points to Anchor Agent.
Beneficial effect of the present invention: the pressure type anchor pole assembly that allows of the present invention, because safety valve has keying threshold values, when there is large deformation in rock mass, anchor rod body drives piston ring move along working chamber and extrude compressed media, compressed media pressure exceedes safety valve when opening and closing threshold values and opens, compressed media leaks thus makes constrictor be able to working chamber indentation, stretches into the anchor rod body extended length in rock mass, reaches to allow the effect of compressive strain; Deflection can need according to rock mass deformation and establish, and controlled range is large; Compressed media pressure is decreased to closes lower than safety valve during keying threshold values, reaches the effect of auto Deformation; Constant owing to opening and closing threshold values, the resistance allowing press mechanism provide is stablized; Meanwhile, allow the distortion of press mechanism be non-damaged deformation, can reuse, be conducive to reducing use cost; The deflection that the present invention allows is comparatively large, and supporting capacity is high, constant resisting force, can meet country rock large deformation needs.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of cylinder cap of the present invention;
Fig. 3 is the structural representation of warning system of the present invention.
Detailed description of the invention
Fig. 1 is structural representation of the present invention, Fig. 2 is the top view of cylinder cap of the present invention, as shown in the figure: the present embodiment allow pressure type anchor pole assembly, comprise anchor rod body 1 and be located on anchor rod body 1 and allow press mechanism for what allow pressure, described in allow press mechanism be compression cylinder structure and comprise inner cylinder body 21, outer cylinder body 22, cylinder cap 23, piston ring 24 and piston rod 25; Described inner cylinder body 21 is hollow cylinder, the rod aperture 23b that described cylinder cap 23 is provided with centre bore 23a and coordinates with piston rod 25, and described anchor rod body 1 passes from the hollow part of inner cylinder body 21 and the centre bore 23a of cylinder cap 23 and links with piston rod 25; The ringwise working chamber 2a of described inner cylinder body 21, outer cylinder body 22 and cylinder cap 23 Formation cross-section, described piston ring 24 is located in working chamber 2a, the top of described piston ring 24 is connected with at least two piston rods 25, bottom bottom and working chamber 2a between be provided with compressed media 26, described piston rod 25 passes from rod aperture 23b and can move under the drive of anchor rod body 1; The bottom of described inner cylinder body 21 is provided with pressure release passage 211, is provided with the safety valve 27 that can automatically open according to preset pressure value and close in described pressure release passage 211; Anchor rod body 1 can be made up of glass fiber reinforced plastic or reinforcing bar; Cylinder cap 23 is provided with centre bore 23a can be corresponding with the hollow cavity part of inner cylinder body 21; Allow press mechanism also comprise some necessary seal (not shown)s, hermetically-sealed construction is consistent with prior art, does not repeat them here; Cylinder cap 23 covers the top at inner cylinder body 21, outer cylinder body 22, cylinder cap 23 is arranged some rod aperture 23b and passes through for piston rod 25; During use, inner cylinder body 21 can be pressed in rock mass 3 wall, replace traditional pallet, simplify structure, reduce costs; Safety valve 27 is automatic valve, can according to pressure automatic switch; Because safety valve 27 has keying threshold values, when there is large deformation in rock mass 3, anchor rod body 1 drives piston ring 24 move along working chamber 2a and extrude compressed media 26, compressed media 26 pressure exceedes safety valve 27 when opening and closing threshold values and opens, compressed media 26 leaks thus makes constrictor be able to working chamber 2a indentation, stretch into anchor rod body 1 extended length in rock mass 3, reach and allow the effect of compressive strain; Deflection can be out of shape needs according to rock mass 3 and establish, and controlled range is large; Compressed media 26 pressure is decreased to closes lower than safety valve 27 during keying threshold values, reaches the effect of auto Deformation; Constant owing to opening and closing threshold values, the resistance allowing press mechanism provide is stablized; Meanwhile, allow the distortion of press mechanism be non-damaged deformation, can reuse, be conducive to reducing use cost; The deflection that this anchor pole assembly is allowed is comparatively large, and supporting capacity is high, constant resisting force, can meet country rock large deformation needs.
In the present embodiment, described in allow press mechanism also comprise connecting ring 28, the top of described piston rod 25 is fixedly connected with connecting ring 28; Described piston ring 24 can be connected with 2-8 root piston rod 25, and the quantity of rod aperture 23b is corresponding with piston rod 25 quantity; Each piston rod 25 is preferably uniformly distributed, and namely rod aperture 23b is evenly distributed on cylinder cap 23 in circumference; Each piston rod 25 stretches out rear being all fixedly connected with connecting ring 28 from cylinder cap 23 and such as welds or be spirally connected, and makes each piston rod 25 can keep being synchronized with the movement, and improves the stability of compression cylinder effect.
In the present embodiment, free segment one end of described anchor rod body 1 is provided with external screw thread and is connected with the spiro connecting piece 4 matched, and described spiro connecting piece 4 is located at the outside of connecting ring 28; Rock mass 3 is out of shape spiro connecting piece 4 when producing axial tension to anchor rod body 1 to be ordered about piston rod 25 by squeeze flow ring 28 and moves; Spiro connecting piece 4 is preferably nut; Can be provided with pad 5 between described spiro connecting piece 4 and connecting ring 28, pad 5 is also in circular, and its upper and lower surface area is all not less than relative spiro connecting piece 4, the surface area of connecting ring 28, ensures the transmission effect of power, reduces the wearing and tearing of connecting ring 28; The screw propulsion of spiro connecting piece 4 can make to allow press mechanism be close to rock mass 3, forms certain pretightning force while fixing this assembly to rock mass 3, improves anchoring effect, but also manually can adjust and allow pressure; Because anchor rod body 1 is relative with spiro connecting piece 4 fixing, rock mass 3 distortion will form pulling force to anchor rod body 1, pulling force is delivered to piston ring 24 by spiro connecting piece 4, pad 5 connecting ring 28 and piston rod 25 successively, piston ring 24 extrudes compressed media 26, compressed media 26 pressure exceedes safety valve 27 when opening and closing threshold values and opens, compressed media 26 leaks thus makes constrictor be able to working chamber 2a indentation, stretches into anchor rod body 1 extended length in rock mass 3, reaches to allow the effect of compressive strain.
In the present embodiment, described compressed media 26 is liquid; This assembly also comprises the liquid storage box 6 for storing the compressed media 26 flowed out from pressure release passage 211; Adopt liquid as compressed media 26, pressure limit is large, and transmission accuracy is high, avoids the improper movement of anchor rod body 1; This liquid can be hydraulic oil or emulsion; Liquid storage box 6 is conducive to the recycling of compressed media 26, avoids contaminated environment, reduces use cost; Between pressure release passage 211 and liquid storage box 6, can woven hose be set; Liquid storage box 6 can peripheral hardware, also can removably be connected on outer cylinder body 22.
As shown in Figure 3, in the present embodiment, this assembly also comprises warning system, and described warning system comprises processor 71, alarm 72 and is located at the liquid level sensor 73 of liquid storage box 6, and described alarm 72 and liquid level sensor 73 are all connected with processor 71; Described liquid level sensor 73 detects the liquid level of compressed media 26 in liquid storage box 6 and liquid level signal is reached processor 71, and described processor 71 controls the keying of alarm 72; Processor 71 can be single-chip microcomputer; Alarm 72 can be audible-visual annunciator 72; Should ensure when arranging liquid storage box 6 compressed media 26 in liquid storage box 6 liquid level can to allow press mechanism make pressure degree relevant, once there is allowing pressure exception or exceed warning line and namely start alarm 72 and warn, prevent from damaging surrounding people because of rock mass 3 abnormal motion; In the present embodiment, described warning system also comprises the wireless communication module 74 be connected with processor 71, and liquid level signal is reached external terminal 76 by corresponding cordless communication network 75 by described wireless communication module 74; Wireless communication module 74 line can be gsm module, GPRS module, CDMA module, 3G net module or 4G net module, and cordless communication network 75 is GSM network, GPRS network, cdma network, 3G network or the 4G network corresponding with wireless communication module 74; External terminal 76 is mobile phone or the computer of corresponding access GSM network, GPRS network, cdma network, 3G network or 4G network; Realize monitoring in real time, improve the validity of early warning; In addition, warning system also can arrange the power module 77 for powering to each power unit, and power module 77 is connected with processor 71, and power module 77 can be general dry battery or Li-Ion rechargeable battery or nickel-hydrogen chargeable cell or solar energy charging battery.
In the present embodiment, the peripheral part of described anchor rod body 1 anchoring section is provided with for stopping the block piece 8 that Anchor Agent 9 flows out from jewel hole, and described block piece 8 to be enclosed within anchor rod body 1 and coaxial with anchor rod body 1; The external diameter of block piece 8 is more smaller than jewel hole, ensures stretching into and effective stop to Anchor Agent 9 of block piece 8, prevents Anchor Agent 9 from flowing out from jewel hole before solidifying; Described block piece 8 can be boss-shaped, and the miner diameter end of boss points to Anchor Agent 9, is convenient to stretching into of block piece 8.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. allow a pressure type anchor pole assembly, comprise anchor rod body and to be located on anchor rod body for allowing the press mechanism that allows of pressure, it is characterized in that: described in allow press mechanism be compression cylinder structure and comprise inner cylinder body, outer cylinder body, cylinder cap, piston ring and piston rod; Described inner cylinder body is hollow cylinder, the rod aperture that described cylinder cap is provided with centre bore and coordinates with piston rod, and described anchor rod body passes from the hollow part of inner cylinder body and the centre bore of cylinder cap and links with piston rod; Described inner cylinder body, outer cylinder body and the ringwise working chamber of cylinder cap Formation cross-section, described piston ring is located in working chamber, the top of described piston ring is connected with at least two piston rods, bottom bottom and working chamber between be provided with compressed media, described piston rod passes from rod aperture and can move under the drive of anchor rod body; The bottom of described inner cylinder body is provided with pressure release passage, is provided with the safety valve that can automatically open according to preset pressure value and close in described pressure release passage.
2. the pressure type anchor pole assembly that allows according to claim 1, is characterized in that: described in allow press mechanism also comprise connecting ring, the top of described piston rod is fixedly connected with connecting ring.
3. the pressure type anchor pole assembly that allows according to claim 2, is characterized in that: free segment one end of described anchor rod body is provided with external screw thread and is connected with the spiro connecting piece matched, and described spiro connecting piece is located at the outside of connecting ring; Rock mass deformation orders about piston rod movement to spiro connecting piece during anchor rod body generation axial tension by squeeze flow ring.
4. the pressure type anchor pole assembly that allows according to claim 3, is characterized in that: be provided with pad between described spiro connecting piece and connecting ring.
5. the pressure type anchor pole assembly that allows according to claim 1, is characterized in that: described compressed media is liquid; This assembly also comprises the liquid storage box for storing the compressed media flowed out from pressure release passage.
6. the pressure type anchor pole assembly that allows according to claim 5, it is characterized in that: this assembly also comprises warning system, described warning system comprises processor, alarm and is located at the liquid level sensor of liquid storage box, and described alarm and liquid level sensor are all connected with processor; Described liquid level sensor detects the liquid level of compressed media in liquid storage box and liquid level signal is reached processor, and described processor controls the keying of alarm.
7. the pressure type anchor pole assembly that allows according to claim 6, it is characterized in that: described warning system also comprises the wireless communication module be connected with processor, liquid level signal is reached external terminal by corresponding cordless communication network by described wireless communication module.
8. the pressure type anchor pole assembly that allows according to claim 1, is characterized in that: described piston ring is connected with the equally distributed piston rod of 2-8 root.
9. according to any one of claim 1 to 8, allow pressure type anchor pole assembly, it is characterized in that: the peripheral part of described anchor rod body anchoring section is provided with for stopping the block piece that Anchor Agent flows out from jewel hole, described block piece to be enclosed within anchor rod body and coaxial with anchor rod body.
10. the pressure type anchor pole assembly that allows according to claim 9, is characterized in that: described block piece is boss-shaped, and the miner diameter end of boss points to Anchor Agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528174.XA CN105178313B (en) | 2015-05-07 | 2015-08-25 | Allow pressure type anchor pole assembly |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228775 | 2015-05-07 | ||
| CN2015102287759 | 2015-05-07 | ||
| CN201510528174.XA CN105178313B (en) | 2015-05-07 | 2015-08-25 | Allow pressure type anchor pole assembly |
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| Publication Number | Publication Date |
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| CN105178313A true CN105178313A (en) | 2015-12-23 |
| CN105178313B CN105178313B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510528174.XA Active CN105178313B (en) | 2015-05-07 | 2015-08-25 | Allow pressure type anchor pole assembly |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401627A (en) * | 2016-09-23 | 2017-02-15 | 山东科技大学 | Metal anchor rod with yielding function and using method thereof |
| CN107083980A (en) * | 2017-06-15 | 2017-08-22 | 湖南科技大学 | The country rock disaster alarm method and anchoring prior-warning device of a kind of roadway supported by bolt |
| CN109899098A (en) * | 2019-03-29 | 2019-06-18 | 中铁第四勘察设计院集团有限公司 | A kind of antidetonation pressure limiting anchor pole anchor head |
| CN110761820A (en) * | 2019-11-07 | 2020-02-07 | 长江水利委员会长江科学院 | Yielding anchor rod design method suitable for large deformation of weak surrounding rock |
| CN110924999A (en) * | 2019-12-12 | 2020-03-27 | 山东里能鲁西矿业有限公司 | Anchor-withdrawing yielding device |
| CN113107560A (en) * | 2021-05-11 | 2021-07-13 | 内蒙古双欣矿业有限公司 | Broken coal roadway reinforced anchoring type yielding grouting anchor rod anchoring device and using method thereof |
| CN115595967A (en) * | 2022-09-09 | 2023-01-13 | 重庆交通大学（Cn） | Damping type prestress self-compensating anchor cable device |
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| CN201121522Y (en) * | 2007-11-30 | 2008-09-24 | 中国矿业大学 | Barrel type anchor bar of extrusion-injection anchor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401627A (en) * | 2016-09-23 | 2017-02-15 | 山东科技大学 | Metal anchor rod with yielding function and using method thereof |
| CN106401627B (en) * | 2016-09-23 | 2018-05-29 | 山东科技大学 | A kind of anchor metal and its application method allow with pressure |
| CN107083980A (en) * | 2017-06-15 | 2017-08-22 | 湖南科技大学 | The country rock disaster alarm method and anchoring prior-warning device of a kind of roadway supported by bolt |
| CN109899098A (en) * | 2019-03-29 | 2019-06-18 | 中铁第四勘察设计院集团有限公司 | A kind of antidetonation pressure limiting anchor pole anchor head |
| CN109899098B (en) * | 2019-03-29 | 2024-04-30 | 中铁第四勘察设计院集团有限公司 | Anti-seismic pressure-limiting anchor rod anchor head |
| CN110761820A (en) * | 2019-11-07 | 2020-02-07 | 长江水利委员会长江科学院 | Yielding anchor rod design method suitable for large deformation of weak surrounding rock |
| CN110761820B (en) * | 2019-11-07 | 2020-12-08 | 长江水利委员会长江科学院 | Yielding anchor rod design method suitable for large deformation of weak surrounding rock |
| CN110924999A (en) * | 2019-12-12 | 2020-03-27 | 山东里能鲁西矿业有限公司 | Anchor-withdrawing yielding device |
| CN113107560A (en) * | 2021-05-11 | 2021-07-13 | 内蒙古双欣矿业有限公司 | Broken coal roadway reinforced anchoring type yielding grouting anchor rod anchoring device and using method thereof |
| CN115595967A (en) * | 2022-09-09 | 2023-01-13 | 重庆交通大学（Cn） | Damping type prestress self-compensating anchor cable device |
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| CN105178313B (en) | 2017-04-05 |
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