CN102704476A - Recyclable end bearing anchor - Google Patents
Recyclable end bearing anchor Download PDFInfo
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- CN102704476A CN102704476A CN2012101485335A CN201210148533A CN102704476A CN 102704476 A CN102704476 A CN 102704476A CN 2012101485335 A CN2012101485335 A CN 2012101485335A CN 201210148533 A CN201210148533 A CN 201210148533A CN 102704476 A CN102704476 A CN 102704476A
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- anchor pole
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- anchoring body
- sleeve pipe
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Abstract
The invention discloses a recyclable end bearing anchor, which comprises a sleeve (1), a flexible sac (2) having its mouth connected with the lower end of the sleeve (1), an anchor (3) capable of passing through the sleeve (1) and having a length larger than the length of the sleeve (1), and an anchoring body (4) having a solid state at the room temperature and capable of melting into a molten state along with temperature rise. The sleeve (1) connected with the flexible sac (2) is embedded into the reamed hole under a pre-drilled anchor hole, the molten anchoring body (4) is injected, and the anchor (3) is inserted into the anchoring body (4) and can generate an end bearing anchoring force via the interaction between the anchoring body (4) and rock and soil mass after the anchoring body is cooled. After application, the anchoring body (4) is heated to melt into the molten state, the anchor (3) is taken out and the anchoring body (4) is extracted to realize full recycling. The inventive anchor is simple in structure, wide in application, and large in anchoring force, can be fully recycled and is suitable for various anchoring occasions.
Description
Technical field
The present invention relates to a kind of callable end and hold anchor pole.
Background technology
Employed callable end holds the anchor pole technology on the present various engineering; What use often is mechanical anchor bolt; Minority also has uses cement material to hold anchor pole as the end of anchoring body, and the cement material anchoring body generally can not reclaim, and part also can only the bridle catcher body portion.Callable mechanical type end holds anchor pole, if when being used for soft layer, goes for bigger anchored force, just must strengthen the size of the anchor head that anchor pole buries, anchor head oversized, the size of reaming that just must the ccontaining anchor head of corresponding increasing.Yet after the reaming oversized, reaming just is prone to the hole problem of collapsing.In addition, the recyclable mechanical type end after anchor head increases holds anchor structure also can be complicated a lot.In the face of soft layer; The existing solution hole scheme of collapsing is to adopt the holing with slurry wall protection technological borehole, take the method for underwater grouting concrete that hole bottom slurry is discharged from again, but the mud of reaming place is prone to mix with concrete; Can influence the intensity and the uniformity of concrete, be difficult to guarantee the quality of construction.And the anchoring body of cement material also needs the regular hour that the intensity of cement material is brought into play from beginning to build to coming into operation.
Summary of the invention
Technical problem to be solved by this invention a kind ofly not only can guarantee construction quality with regard to providing, can also effectively prevent to collapse hole and anchored force end big, that can all reclaim hold anchor pole.
The present invention solves the problems of the technologies described above the technical scheme of being taked:
A kind of callable end holds anchor pole, it is characterized in that comprising:
Sleeve pipe;
Flexible pouch, sack is connected with described sleeve pipe lower end;
Anchor pole can pass described sleeve pipe and length and be longer than sleeve pipe;
Anchoring body, normal temperature down for solid-state, with the temperature fusible molten condition that changes into that raises.
During use,, earlier sleeve pipe and flexible pouch are placed correct position in the hole to after soil layer boring and having expanded the hole; Keep the sleeve pipe upper end to expose; So that in the flexible pouch of its lower end, inject the anchoring body that is heated into molten condition through it, and through in its anchoring body with molten condition in its lower end flexible pouch of anchor pole insertion of preheating, and the anchor pole upper end passes sleeve pipe; After the anchoring body cooling; Flexible pouch, anchoring body, anchor pole are connected as a single entity, and flexible pouch and anchoring body as the enlarged footing of anchor pole, produce end with soil layer and make usefulness jointly; After accomplishing use, the heating anchoring body makes it be fused into molten condition, takes out anchor pole, extracts the anchoring body of molten condition out, again the flexible pouch of recovery of casing and lower end thereof.
Said anchor pole lower end is provided with and strengthens its convex-concave structure that is connected with anchoring body.
As one embodiment of the present invention: the upper and lower side of the convex-concave structure on the said anchor pole is as electrode and draw through lead respectively, so that connect the outer low pressure high-current supply.Adopt low-voltage high-current power source, because voltage is low, even human body contact electrification part also can effectively be avoided the generation of electric shock accidents.
As another embodiment of the invention: said anchor pole is a tubulose, and the inboard, lower end is provided with heating resistor, and draw through lead respectively at the heating resistor two ends or an end is drawn the other end through lead and linked to each other with anchor pole is inboard.
As one of embodiments of the invention: said anchor pole comprises that a lower end has the anchor pole cover that the straight-bar of disc-shaped flange, is sleeved on the tubulose on the straight-bar; Said anchor pole cover bottom surface is provided with annular projection; Inboard and upper surface is provided with insulating layer, and the outer, lower end of said annular projection is provided with annular outer edge or annular inner groovy, also comprises a plurality of anchor flukes; The upper end of each anchor fluke is suitable is provided with inner groovy or outer convex edge; The inner groovy of said anchor fluke upper end wraps up said annular outer along forming hinged relationship, or the outer convex edge of said anchor fluke upper end embeds said annular inner groovy and form hinged relationship, and the lower end of each said anchor fluke also is hinged with support bar; The lower end of said support bar is hinged on the outer of disc-shaped flange of said straight-bar, and said straight-bar upper end passes the anchor pole cover.
During use, same elder generation places soil layer to bore in advance in the good hole sleeve pipe and flexible pouch, keeps exposing on the sleeve pipe; In the flexible pouch of sleeve pipe lower end, inject the anchoring body that is heated into molten condition again; And in the whole insertion of the anchor pole of the preheating anchoring body, keep the anchor pole cover of anchor pole to expose, when the straight-bar of anchor pole is in relaxation state through the sleeve pipe mouth of pipe; Said anchor fluke, support bar all parallel with straight-bar; Upwards promote straight-bar, the disc-shaped flange of straight-bar lower end is upwards pushed the support bar lower end, and each anchor fluke of they sup-port such as umbrella formula are launched.This anchor pole can be connected more firm on the one hand with cooled anchoring body, the opposing party, and the anchor fluke of expansion can better be held soil layer, and the hole problem that further prevents to collapse occurs.After using, with the positive and negative output of low-voltage high-current power source, an end links to each other with the anchor pole set upper side of anchor pole; The other end links to each other with the straight-bar upper end of anchor pole; Give anchor pole, anchoring body heating, treat the anchoring body heat fused after, can successively reclaim anchor pole, anchoring body, sleeve pipe and flexible pouch.
Among the present invention, said anchoring body can be selected the heat molten type cementitious materials, and like sulphur or modified sulfur, the sulphur fusing point is lower, and suitable heating is promptly fusible.
Also be added with the metal or the nonmetal filler that strengthen the anchoring body comprehensive mechanical property in the said anchoring body.Adding filler one is the comprehensive mechanical property that improves anchoring body, two, if what add be double valency material such as stone, the ratio owing to having reduced cementitious materials accordingly can also reduce cost.
The bag of said flexible pouch for processing by heat proof material.
The present invention has following beneficial effect:
1) puts into flexible pouch in the hole that the present invention is bored in soil layer, in flexible pouch, inject the anchoring body of molten condition again, because the pressure of anchoring body; Be beneficial to the mud in the tap; In addition, because anchoring body is to be injected in the flexible pouch, the capsule bag has certain protective role to anchoring body; Make mud be difficult for getting into the capsule bag and the performance of anchoring body being changed, can guarantee to hold the construction quality of holding anchor pole; The anchoring physical efficiency of injecting the capsule bag well supports the soil layer on reaming top, helps preventing that it from subsiding; The present invention utilizes anchoring body and the flexible pouch of cooling jointly as the enlarged footing of anchor pole, produces end with soil layer and makes usefulness, with respect to the anchor pole that utilizes side-friction force, bigger anchored force can be provided; End of the present invention holds anchor pole and can reclaim fully: after accomplishing use, to the anchoring body heating, can successively reclaim anchor pole, anchoring body, sleeve pipe and flexible pouch, in the construction soil layer, not have legacy, can not influence the follow-up use of this soil layer;
2) available data shows; The comprehensive mechanical property of sulfur concrete is than higher, and sulfur concrete promptly adds the sandstone filler in heat molten type cementitious materials sulphur, and its compressive strength can reach 30Mpa～60Mpa; Sulfur concrete is after the cast cooling; Can reach 65% of its maximum intensity in the 30min, the compressive strength of 48h can reach 80～90% of its maximum intensity, and tensile strength can reach 95% of its maximum intensity; Also have the data introduction, can reach 100% after can reaching 80%, a day of maximum intensity behind sulfur concrete cast 1～2h; By contrast, the pour mass of cement material under normal circumstances, intensity reaches 70～80% of maximum intensity needs 10～14 days approximately, just can reach 100% after 28 days, contrasts from the time, after the cast, the speed that both can come into operation differs greatly;
3) in the anchor pole lower end electrode is set and through the low-voltage, high-current transformer body of rod is applied voltage, the resistance heat effect through the body of rod can heat easy-to-operate to anchoring body; The anchor pole lower end is provided with convex-concave structure, and after the anchoring body cooling, anchor pole can better be connected as a single entity through said convex-concave structure and anchoring body, make between anchor pole and the anchoring body be connected more fastening;
4) anchoring body is selected low-melting heat molten type cementitious materials such as sulphur or modified sulfur etc. for use; Suitable heating can make anchoring body be molten into molten condition, and recovery speed is fast, and fusing institute calorific requirement is few; Anchoring body of the present invention can also reuse after reclaiming, and has further reduced cost;
5) in anchoring body, add metal or nonmetallic filler, the one, can improve the comprehensive mechanical property of anchoring body, two, if what add is double valency material such as stone, can also reduce cost;
6) anchor pole of the present invention adopts the anchor pole that can be launched into umbrella, and it is more firm that its anchoring body with cooling is connected, and can also better hold soil layer, and the hole problem that further prevents to collapse occurs.
Description of drawings
Fig. 1 is the user mode figure of the embodiment of the invention one;
Fig. 2 is the anchor pole and the detailed drawing of drawing lead of the embodiment of the invention one;
Fig. 3 is the user mode figure of the embodiment of the invention two;
Fig. 4 is the user mode figure of the embodiment of the invention three;
Fig. 5 is the user mode figure one of the embodiment of the invention four;
Fig. 6 is the user mode figure two of the embodiment of the invention four;
Fig. 7 is the expansion sketch map of the anchor fluke of the embodiment of the invention four;
Fig. 8 is the enlarged drawing at Fig. 5 a place;
Fig. 9 is hinged on the enlarged drawing of another kind of embodiment of the outer, lower end of anchor pole cover bottom surface annular projection for anchor fluke.
The specific embodiment
Like Fig. 1, shown in 2; The end of the embodiment of the invention one holds anchor pole, and it is down solid-state with the fusible anchoring body 4 that changes into molten condition of temperature rising comprising flexible pouch 2 that the upper end is provided with externally threaded sleeve pipe 1, sack and is connected with described sleeve pipe 1 lower end, can passing anchor pole 3, the normal temperature that described sleeve pipe 1 and length is longer than sleeve pipe 1.In the present embodiment, anchor pole 3 is cylindric, and the upper end also is provided with external screw thread, and the lower end is provided with and strengthens itself and the convex-concave structure that anchoring body 4 is connected, and said convex-concave structure is to be located at the external screw thread of anchor pole 3 lower ends.The upper and lower side of convex-concave structure is connected with the termination of lead 8 through connector respectively, and draws connection outer low pressure high-current supply (not shown) through lead 8.Anchor pole 3 outer walls are provided with metallic channel, and said lead 8 is contained in the metallic channel.In the present embodiment, anchor pole 3 also can be tubulose, and lead is directly drawn from the tube chamber inside of anchor pole 3 with after the top and the bottom of convex-concave structure link to each other.
The bag of flexible pouch 2 for processing by heat proof material.Anchoring body 4 adopts heat molten type cementitious materials modified sulfur; Also can adopt sulphur or PUR etc.; Also be added with the metal charge steel fibre that is used to strengthen the anchoring body comprehensive mechanical property in the anchoring body 4, also can add sandstone etc. and process sulphur-bonded mortar, sulfur concrete etc.Comparatively speaking, the mechanical property of unmodified sulphur and stability all are inferior to modified sulfur.
As shown in Figure 1, to after soil layer boring and having expanded the hole,, overlap lastblock bearing plate 7 and a nut 6 in the upper end of sleeve pipe 1 according to hole depth and reaming height, wherein bearing plate 7 is in nut 6 belows.External screw thread adjusting nut 6 along sleeve pipe 1 upper end arrives place, roughly lets the length that gets into the sleeve pipe 1 in the soil layer is equated to the distance of soil layer upper surface with reaming flat-top place.The flexible pouch 2 of sleeve pipe 1 and its lower end is put into the hole, and sleeve pipe 1 is mounted on the soil layer through bearing plate 7 and nut 6, and soil layer is exposed in sleeve pipe 1 upper end.Then, be heated into the anchoring body 4 of molten condition through sleeve pipe 1 injection in the flexible pouch 2 of its lower end.Along with increasing of the anchoring body 4 of molten conditions in the flexible pouch 2, the pressure effect of anchoring body 4 is forced out the mud in the reaming.Because the protection of flexible pouch 2 is arranged, mud is difficult for getting into flexible pouch 2 and the performance of anchoring body 4 is changed, and can guarantee the construction quality that end holds anchor pole.Flexible pouch 2 is further launched with the injection of anchoring body 4, finally is filled in the reaming.The cover top nut 5 in anchor pole 3 upper ends again, the external diameter that requires nut 5 is greater than sleeve pipe 1 internal diameter.The nut 5 of regulating anchor pole 3 upper ends is to correct position, and anchor pole 3 directly inserts in the sleeve pipe 1 after preheating, and its lower end is got in the anchoring body 4 of molten condition in the flexible pouch 2, and the upper end passes sleeve pipe 1 and is mounted on the sleeve pipe 1 through nut 5.After anchoring body 4 coolings, flexible pouch 2, anchoring body 4, anchor pole 3 are connected as a single entity, and flexible pouch 2 and anchoring body 4 common enlarged footings as anchor pole 3 produce end with soil layer and make usefulness.After treating that anchoring body 4 coolings reach working strength, local terminal holds anchor pole and can come into operation.
After being used to complete, apply voltage, can produce heat in anchor pole 3 lower ends anchoring body 4 heating through low-voltage high-current power source and 8 pairs of anchor pole 3 lower ends of lead; And rotatable anchor pole 3 is so that stir anchoring body 4; Quicken its fusing, treat anchoring body 4 fusing after, can take out anchor pole 3; Extract the anchoring body 4 of fusion out, and take out the flexible pouch 2 of sleeve pipe 1 and its lower end.
The present invention can be not be provided with external screw thread, nut 6,5, bearing plate 7 yet and wait the position adjustment that is implemented in the soil layer in sleeve pipe 1 and anchor pole 3 upper ends.Upper end as at sleeve pipe 1 or anchor pole 3 connects jack etc., makes sleeve pipe 1, anchor pole 3 be in correct position in the hole, after anchoring body 4 coolings, also can jack be removed.
The present invention also can take out anchor pole 3 behind anchoring body 4 local meltings when 4 fusings of heating anchoring body, put into other calandrias or quicken anchoring body 4 fusings through being blown into modes such as hot blast.
Fig. 3,4 is the user mode figure of embodiments of the invention two, three.Existing only be described further with regard to the differential point of itself and embodiment one.
This among the embodiment two, three through heating resistor 9 being set in anchor pole 3 lower ends; So that to the mode of anchor pole 3 with anchoring body 4 heating; Because heating resistor 9 power are limited, need apply high voltage to it usually, need use insulating power supply during use to guarantee safe handling.
Fig. 5,6 is the user mode figure of the embodiment of the invention four.The main difference of itself and embodiment one is anchor pole 3.As shown in the figure, the anchor pole 3 of embodiment four comprises that straight-bar 31, that a lower end has a disc-shaped flange 311 is sleeved on the anchor pole cover 32 of the tubulose on the straight-bar 31, and anchor pole overlaps 32 bottom surfaces and is provided with annular projection 321; Inboard and upper surface is provided with insulating layer 10; As shown in Figure 8, the outer, lower end of annular projection 321 is provided with annular outer along 322, also comprises a plurality of anchor flukes 33; The upper end of each anchor fluke 33 is suitable is provided with inner groovy 331; The said annular outer of inner groovy 331 parcels of said anchor fluke 33 upper ends is along 322 formation hinged relationship, and like Fig. 5, shown in 6, the lower end of each said anchor fluke 33 also is hinged with support bar 34; The lower end of said support bar 34 is hinged on the outer of disc-shaped flange 311 of said straight-bar 31, and straight-bar 31 upper ends pass anchor pole cover 32.
Anchor pole cover 32 all is provided with external screw thread with straight-bar 31 upper ends; During use; Straight-bar 31 upper ends are mounted on the anchor pole cover 32 greater than two nuts, 11 ˊ, 5 ˊ that anchor pole overlaps 32 internal diameters through external diameter, and anchor pole overlaps 32 upper ends and also is mounted on the sleeve pipe 1 through two nuts 11,5 of external diameter greater than sleeve pipe 1 internal diameter.Here equally can be, or realize mounting through other modes by jack, as through adding bearing plate and nut etc.
After soil layer being holed and has expanded the hole; According to hole depth and reaming height, regulate the position of the nut on sleeve pipe 1, anchor pole cover 32, the straight-bar 31, straight-bar 31 is loosened; It is parallel with straight-bar 31 with support bar 34 that anchor pole overlaps the anchor fluke 33 of 32 belows; After making sleeve pipe 1 and anchor pole cover 32 being in load hole, the reaming flat-top place that makes peace greatly, sleeve pipe 1 lower end is concordant, and anchor pole overlaps 32 bottom surface height a little less than the reaming flat-top.After installing like Fig. 5, upwards promote straight-bar 31, support bar 34 supports each anchor fluke 33 as the expansion of umbrella formula, like Fig. 6, shown in 7.Regulate nut 11 ˊ, 5 ˊ of straight-bar 31 upper ends, maintain the deployed condition of anchor fluke 33.After using, between two nuts, 11 ˊ of straight-bar 31 upper ends, 5 ˊ and anchor pole overlap 32 upper ends two nuts 11, clamp upper conductor 8 between 5 respectively, and link to each other with the positive and negative output of low-voltage high-current power source (not shown) respectively through said lead 8.Because anchor pole cover 32 inboards and upper surface all are provided with insulating layer 10, current trend is: low-voltage high-current power source positive output end-straight-bar 31-support bar 34-anchor fluke 33-anchor pole cover 32-low-voltage high-current power source negative output terminal.After anchoring body 4 heat fused, earlier nut 11 ˊ, 5 ˊ of adjustment straight-bar 31 upper ends loosen straight-bar 31, after can successively reclaim anchor pole 3, anchoring body 4, sleeve pipe 1 and flexible pouch 2.
In the embodiments of the invention four; Anchor fluke 33 is hinged on the concrete structure that anchor pole overlaps the outer, lower end of 32 bottom surface annular projections 321 and also can designs as follows: as shown in Figure 9; The outer, lower end of annular projection 321 is provided with annular inner groovy 323; The upper end of each anchor fluke 33 is suitable is provided with outer convex edge 332, and said outer convex edge 332 embeds said annular inner groovy 323 and forms hinged relationship.
The present invention both can be used as end and has held anchor pole and make resistance to plucking usefulness, also can the reaming upper-lower position be exchanged, and increased bolt diameter, used as the compressive pile that end holds.
Claims (9)
1. a callable end holds anchor pole, it is characterized in that comprising:
Sleeve pipe (1);
Flexible pouch (2), sack is connected with described sleeve pipe (1) lower end;
Anchor pole (3) can pass described sleeve pipe (1) and length and be longer than sleeve pipe (1);
Anchoring body (4), normal temperature down for solid-state, with the temperature fusible molten condition that changes into that raises.
2. callable end according to claim 1 holds anchor pole, it is characterized in that: said anchor pole (3) lower end is provided with and strengthens its convex-concave structure that is connected with anchoring body (4).
3. callable end according to claim 2 holds anchor pole, it is characterized in that: the upper and lower side of the convex-concave structure on the anchor pole (3) is also drawn through lead respectively as electrode.
4. callable end according to claim 2 holds anchor pole; It is characterized in that: said anchor pole (3) is a tubulose; The inboard, lower end is provided with heating resistor (9), and draw through lead respectively at heating resistor (9) two ends or an end draws through lead that the other end and anchor pole (3) are inboard to link to each other.
5. callable end according to claim 1 holds anchor pole; It is characterized in that: said anchor pole (3) comprises that a lower end has the anchor pole cover (32) that the straight-bar of disc-shaped flange (311) (31), is sleeved on the tubulose on the straight-bar (31); Said anchor pole cover (32) bottom surface is provided with annular projection (321); Inboard and upper surface is provided with insulating layer (10); The outer, lower end of said annular projection (321) is provided with annular outer along (322) or annular inner groovy (323); Also comprise a plurality of anchor flukes (33), the upper end of each anchor fluke (33) is suitable is provided with inner groovy (331) or outer convex edge (332), and the said annular outer of inner groovy (331) parcel of said anchor fluke (33) upper end forms hinged relationship along (322); Or the outer convex edge (332) of said anchor fluke (33) upper end embeds said annular inner groovy (323) formation hinged relationship; The lower end of each said anchor fluke (33) also is hinged with support bar (34), and the lower end of said support bar (34) is hinged on the outer of disc-shaped flange (311) of said straight-bar (31), and said straight-bar (31) upper end passes anchor pole cover (32).
6. hold anchor pole according to each described callable end of claim 1-5, it is characterized in that: said anchoring body (4) is the heat molten type cementitious materials.
7. callable end according to claim 6 holds anchor pole, it is characterized in that: said heat molten type cementitious materials is sulphur or modified sulfur.
8. callable end according to claim 7 holds anchor pole, it is characterized in that: also be added with the metal or the nonmetal filler that strengthen the anchoring body comprehensive mechanical property in the said anchoring body (4).
9. callable end according to claim 8 holds anchor pole, it is characterized in that: the bag of said flexible pouch (2) for being processed by heat proof material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210148533.5A CN102704476B (en) | 2012-05-15 | 2012-05-15 | Recyclable end bearing anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210148533.5A CN102704476B (en) | 2012-05-15 | 2012-05-15 | Recyclable end bearing anchor |
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| Publication Number | Publication Date |
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| CN102704476A true CN102704476A (en) | 2012-10-03 |
| CN102704476B CN102704476B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210148533.5A Active CN102704476B (en) | 2012-05-15 | 2012-05-15 | Recyclable end bearing anchor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102943473A (en) * | 2012-11-23 | 2013-02-27 | 绍兴文理学院 | Recyclable liquid filling type tension anchor rod and application method thereof |
| CN103061338A (en) * | 2013-02-04 | 2013-04-24 | 苏州市能工基础工程有限责任公司 | Composite steel capable of conveniently recovering core material and recovering method of composite steel |
| CN103469794A (en) * | 2013-01-18 | 2013-12-25 | 苏州市能工基础工程有限责任公司 | Support type anchorage device capable of conveniently disassembling core and core material recovery method for support type anchorage device |
| WO2014146366A1 (en) * | 2013-03-19 | 2014-09-25 | 苏州市能工基础工程有限责任公司 | Clamping piece-type anchorage for prestressed tendon |
| CN104234050A (en) * | 2014-09-01 | 2014-12-24 | 德州市公路工程总公司 | Lead hole implanted anti-floating rock anchor rod with supporting trays and construction method thereof |
| CN107059865A (en) * | 2017-06-14 | 2017-08-18 | 张智猷 | Prefabricated high-strength core body, pressure type anchor rod and its construction method |
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| CN111779195A (en) * | 2020-07-06 | 2020-10-16 | 青岛市地铁六号线有限公司 | Novel prestressed anchorage cable expandable inner anchor head |
| CN116624196A (en) * | 2023-07-20 | 2023-08-22 | 中南大学 | Buckle assembly type recyclable anchor rod |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943473A (en) * | 2012-11-23 | 2013-02-27 | 绍兴文理学院 | Recyclable liquid filling type tension anchor rod and application method thereof |
| CN103469794A (en) * | 2013-01-18 | 2013-12-25 | 苏州市能工基础工程有限责任公司 | Support type anchorage device capable of conveniently disassembling core and core material recovery method for support type anchorage device |
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| CN104234050A (en) * | 2014-09-01 | 2014-12-24 | 德州市公路工程总公司 | Lead hole implanted anti-floating rock anchor rod with supporting trays and construction method thereof |
| CN104234050B (en) * | 2014-09-01 | 2015-12-02 | 德州市公路工程总公司 | One draws hole implanted band branch anti-floating rock bolt and construction method |
| CN107059865A (en) * | 2017-06-14 | 2017-08-18 | 张智猷 | Prefabricated high-strength core body, pressure type anchor rod and its construction method |
| CN107227962A (en) * | 2017-06-14 | 2017-10-03 | 中铁二院工程集团有限责任公司 | A kind of adjustable tunnel reinforcement structure of dynamic deformation and construction method |
| CN107227962B (en) * | 2017-06-14 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Tunnel reinforcing structure with adjustable dynamic deformation and construction method |
| CN111779195A (en) * | 2020-07-06 | 2020-10-16 | 青岛市地铁六号线有限公司 | Novel prestressed anchorage cable expandable inner anchor head |
| CN111779195B (en) * | 2020-07-06 | 2021-05-11 | 青岛市地铁六号线有限公司 | Prestressed anchorage cable expandable inner anchor head |
| CN116624196A (en) * | 2023-07-20 | 2023-08-22 | 中南大学 | Buckle assembly type recyclable anchor rod |
| CN116624196B (en) * | 2023-07-20 | 2023-10-20 | 中南大学 | Buckle assembly type recyclable anchor rod |
| CN116771195A (en) * | 2023-08-22 | 2023-09-19 | 沧州市交通运输局 | Safety fence for highway maintenance |
| CN116771195B (en) * | 2023-08-22 | 2023-11-14 | 沧州市交通运输局 | Safety fence for highway maintenance |
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| CN102704476B (en) | 2014-11-05 |
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