CN206928285U - Prefabricated high-strength core body and pressure type anchor rod - Google Patents
Prefabricated high-strength core body and pressure type anchor rod Download PDFInfo
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- CN206928285U CN206928285U CN201720698813.1U CN201720698813U CN206928285U CN 206928285 U CN206928285 U CN 206928285U CN 201720698813 U CN201720698813 U CN 201720698813U CN 206928285 U CN206928285 U CN 206928285U
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Abstract
The utility model discloses a kind of prefabricated high-strength core body and pressure type anchor rod, including core body and for making Rock And Soil around pressure type anchor rod anchoring section and anchoring section produce the uniform even gland pipe for gluing frictional resistance, the even gland pipe sleeve is located on the outside of the core body, the core body is the prefabricated cylinder of composite high-strength, the core body axis direction is provided with least one fixing hole, the fixed bore dia is adapted to pressure type anchor rod muscle body diameter；The core diameter presses bearing capacity to be adapted to anchor rod anchored section of diameter not less than 5cm and with anchor pole office, and the length of the core body is at least 1m；The compression strength of the core body is more than M40, and the utility model effectively solves normal pressures type anchor pole bearing capacity deficiency or pouring quality ensures difficult problem, while solves muscle body bottom stress concentration problem, improves anchoring efficiency.
Description
Technical field
It the utility model is related to anti-float anchor rod field, and in particular to a kind of prefabricated high-strength core body and pressure type anchor rod.
Background technology
With the growing tension of urban land, the utilization of the underground space are more and more extensive, in underground water high water level
Area is built underground, the anti-floating problem of structures is outstanding day by day, it usually needs takes measure of anti float.Using anti-float anchor rod come under evenly
Water is a kind of effective construction of structures anti-float method to the buoyancy of building.
Propose what construction of structures anti-floating Deformation control strictly or in soil layer was used in existing related code, specification
Anti-float anchor rod all should use prestressed anchor, compared to using more common tension type prestressed anchor pressure-type prestress steel
Muscle anchor pole possess force-mechanism is more clear and definite, anchoring efficiency is higher, cost increase it is relatively low the advantages that (known together in the industry),
But in practical engineering application and not more than common tension type prestressed anchor number of applications.Trace it to its cause mainly normal pressures
The characteristics of type deformed bar anchor pole is because of its anchor pole bottom pressure-bearing is strong to the slurry later stage near anchor pole bottom supporting body or loading plate
Degree and grouting quality require higher, and grout coordinate ratio may be caused near the bearing plate of anchor pole bottom with careless slightly in mortar depositing construction
Anchoring section injecting cement paste because folder mud, burning into sand or perfusion leakiness it is not full can not meet the requirement of local compressed strength, finally lead
Cause anchor pole failure.In addition, the stress concentration phenomenon of anchor rod anchored section of normal pressures type is not better than tension type anchor pole, this is also limited
The bigger performance of anchoring efficiency.
Normal pressures type deformed bar anchor pole is made up of muscle body, supporting body or loading plate, grouting body；Muscle body is generally by muscle
Body, Grouting Pipe, erect the composition such as ring；To ensure that slurries are full closely knit, bad without folder mud burning into sand etc. near anchor pole end bearing plate
Situation, while slurry bearing capacity is higher, not only to improve the ratio of mud of grouting serous fluid, generally no greater than 0.5:1, this concentration slurries
The additives such as addition water reducer are still needed in pumping procedure to improve its mobility, meet perfusion needs；Simultaneously at anchoring section end
It repeated multiple times need to be irrigated during slurry filling near portion's supporting body, also need to carry out pressurization grouting if necessary, cause larger slurries
Waste, add cost and time cost in construction.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of prefabricated high-strength core body and pressure-type anchor for improving anchoring efficiency
Bar.
To reach above-mentioned purpose, a kind of prefabricated high-strength core body of pressure type anchor rod of the utility model, including core body and being used for
Rock And Soil around pressure type anchor rod anchoring section and anchoring section is set to produce the even gland pipe for uniformly gluing frictional resistance, the even gland pipe sleeve
Be located on the outside of the core body, the core body is the prefabricated cylinder of composite high-strength, the core body axis direction be provided with to
A few fixing hole, the fixed bore dia are adapted to pressure type anchor rod muscle body diameter；The diameter of the core body is not less than 50mm,
The length of the core body is at least 1m；The compression strength of the core body is more than M40.
Preferably, the even gland pipe is cylindricality tubular, bamboo made of high-density polyethylene plastics or polypropylene plastics
Section shape tubular or taper tubular structure, the wall thickness of the even gland pipe are not less than 2.5mm.
To reach above-mentioned purpose, a kind of prefabricated high-strength core body of pressure type anchor rod of the utility model, including for making pressure
Anchor rod anchored section of type produces the uniformly even gland pipe of viscous frictional resistance and at least one inner sleeve with Rock And Soil around anchoring section, described
Inner sleeve is arranged in the even gland pipe, and composite high-strength material, institute have been poured between the inner sleeve and the even gland pipe
The length for stating even gland pipe is at least 1m, and the internal diameter of the inner sleeve is adapted to the muscle body diameter of pressure type anchor rod.
Preferably, the even gland pipe is reducing, becomes ripple spacing and/or become the even gland pipe of prestressing force of wave height,
The even gland pipe is made up of high-density polyethylene plastics or polypropylene plastics, and the wall thickness of the even gland pipe is not less than
2.5mm。
To reach above-mentioned purpose, a kind of pressure type anchor rod of the utility model, including it is at least one muscle body, as described above pre-
High-strength core body is made, the muscle body bottom is located in the prefabricated high-strength core body.
Preferably, also include injecting cement paste, the injecting cement paste by the muscle body, prefabricated high-strength core wrap inside it, institute
It is composite high-strength material to state injecting cement paste.
Preferably, the muscle body is deformed bar, regular reinforcement or prestress wire, the external side of muscle is arranged
There are smooth sleeve pipe and/or the external side of the muscle to be painted with weak cohesive corrosion-inhibiting coating.
Preferably, also including anchor head, loading plate and by anchor foundation, the loading plate is arranged on the prefabricated high-strength core
Below body, the muscle body lower end is fixedly connected through the prefabricated high-strength core body with the loading plate, and the muscle body top is fixed
It is located in described by anchor foundation, the muscle body upper end is fixedly connected through described by anchor foundation with the anchor head.
Preferably, the loading plate upper surface with the prefabricated high-strength core body bottom is seamless contacts setting, the even gland
Ripple is provided with pipe, wave height of the even gland pipe close to one end of the loading plate is remote less than the even gland pipe
The wave height of described loading plate one end, ripple distance of the even gland pipe close to one end of the loading plate are more than described even
Ripple distance of the gland pipe away from described loading plate one end.
The utility model pressure type anchor rod improves bearing capacity due to local compression provided with high-strength core body, makes making for pressure type anchor rod
With the limitation for being no longer influenced by grouting quality and intensity in construction；The even die mould sleeve pipe of high-strength core body and core body border is employed simultaneously
The glutinous frictional resistance stress concentration phenomenon on anchoring depth can greatly be improved, anchoring efficiency is improved, reduce rock-bolt length.
Brief description of the drawings
Fig. 1 is overall structure profile of the pressure type anchor rod of the utility model embodiment 1 with prefabricated high-strength core body；
The overall structure profile of the prefabricated high-strength core body of the pressure type anchor rod of the utility model embodiment 2 during Fig. 2；
Fig. 3 is the pressure type anchor rod overall structure profile of the utility model embodiment 3.
Embodiment
The utility model is further described with reference to Figure of description.
Embodiment 1
As shown in figure 1, a kind of prefabricated high-strength core body 2 of pressure type anchor rod of the present embodiment, including core body 21 and for making pressure
Power type anchor pole muscle body produces the even gland pipe 22 of uniformly viscous frictional resistance with the anchoring soil body, and the core body 21 is composite high-strength material
Prefabricated cylinder, the axis direction of core body 21 is provided with least one fixing hole, the fixed bore dia and pressure type anchor rod
The diameter of muscle body 1 is adapted to；More than the diameter 5cm of the core body 21, the length of the core body 21 are at least 1m；The core body 21 resists
Compressive Strength is more than M40, and the even gland pipe 22 is cylindricality tubular, bamboo made of high-density polyethylene plastics or polypropylene plastics
Shape tubular or taper tubular structure are saved, the even gland pipe 22 is set in the outside of core body 21, the wall of the even gland pipe 22
Thickness is not less than 2.5mm；
Composite high-strength material at least meets to irrigate 1-3 days compression strength up to more than 30-60Mpa, and composite high-strength material is most
Excellent is cement base composite high-strength material；
The bottom of muscle body 1 is arranged with high-strength core body 2 in the present embodiment, and even gland pipe 23 is arranged with outside high-strength core body 2, solves
The problem of pressure type anchor rod perfusion slurry quality assurance difficulty, change anchor pole and stick frictional resistance in anchor pole bottom zone with surrounding soil
The problem of stress concentration, improve anchoring efficiency.
Embodiment 2
As shown in Fig. 2 a kind of prefabricated high-strength core body 2 of pressure type anchor rod of the present embodiment, including even gland pipe 22 and at least
One inner sleeve 23, the inner sleeve 23 are arranged in the even gland pipe 22, the inner sleeve 23 and the even gland pipe 22
Between poured composite high-strength material, the internal diameter of the inner sleeve 23 is adapted to the diameter of muscle body 1 of pressure type anchor rod, the even pressure
Sleeve pipe 22 is reducing, change ripple spacing and/or the prestressing force bellows for becoming wave height, and the even gland pipe 22 gathers for high density
Vinyl plastics or polypropylene plastics are made, and the wall thickness of the even gland pipe 22 is not less than 2.5mm.
Composite high-strength material at least meets to irrigate 1-3 days compression strength up to more than 30-60Mpa, and composite high-strength material is most
Excellent is cement base composite high-strength material；
The present embodiment in axial direction adjusts stress concentration phenomenon by changing even gland pipe wave height and ripple distance,
Increase the adhesion strength of even gland pipe and injecting cement paste, uniform glue that produced by the anchoring soil body that realizing makes anchor rod anchored section of transfer is rubbed
Resistance, rock-bolt length is saved to improve anchoring efficiency.
Embodiment 3
As shown in figure 3, a kind of pressure type anchor rod of the present embodiment, including at least one muscle body 1 and prefabricated high-strength core body 2；
The prefabricated high-strength core body 2 includes the even gland pipe 22 that core body 21 and internal diameter are adapted to the diameter of core body 21, institute
It is the prefabricated cylinder of composite high-strength to state core body 21, and the axis direction of core body 21 is provided with least one fixing hole, described
Fixed bore dia is adapted to the diameter of pressure type anchor rod muscle body 1；The diameter of the core body 21 is not less than 50mm, the core body 21
Length is not less than 1m；The compression strength of the core body 21 is more than M40, the even gland pipe 22 be high-density polyethylene plastics or
Cylindricality tubular, laemodipodiform tubular or taper tubular structure made of polypropylene plastics, the even gland pipe 22 are set in the core
The outside of body 21, the wall thickness of the even gland pipe 22 are not less than 2.5mm；
Composite high-strength material at least meets to irrigate 1-3 days compression strength up to more than 30-60Mpa, and composite high-strength material is most
Excellent is cement base composite high-strength material；
Or
The prefabricated high-strength core body 2 includes contour even gland pipe 22 and at least one inner sleeve 23, the inner sleeve 23
It is arranged in the even gland pipe 22, composite high-strength material, institute has been poured between the inner sleeve 23 and the even gland pipe 22
State the internal diameter of inner sleeve 23 to be adapted to the diameter of muscle body 1 of pressure type anchor rod, the even gland pipe 22 is reducing, becomes ripple spacing
And/or becoming the even gland pipe of prestressing force of wave height, the even gland pipe 22 is high-density polyethylene plastics or polypropylene plastics
Material is made, and the wall thickness of the even gland pipe 22 is not less than 2.5mm；
Composite high-strength material at least meets to irrigate 1-3 days compression strength up to more than 30-60Mpa, and composite high-strength material is most
Excellent is cement base composite high-strength material；
The bottom of muscle body 1 is located in the prefabricated high-strength core body 2.
Also include injecting cement paste 3, the muscle body 1, prefabricated high-strength core body 2 are wrapped in inside it by the injecting cement paste 3, the note
Slurry 4 is composite high-strength material；
Composite high-strength material at least meets to irrigate 1-3 days compression strength up to more than 30-60Mpa；Composite high-strength material is most
Excellent is cement base composite high-strength material；
The muscle body 1 is screw-thread steel or prestress wire, and the outer sheath of muscle body 1 is provided with smooth sleeve pipe and/or institute
State the outside of muscle body 1 and be painted with weak cohesive corrosion-inhibiting coating.
The present embodiment pressure type anchor rod improves bearing capacity due to local compression provided with high-strength core body, makes the use of pressure type anchor rod
It is no longer influenced by the limitation of grouting quality and intensity in construction；The even die mould sleeve pipe for employing high-strength core body and core body border simultaneously can
Greatly improve the glutinous frictional resistance stress concentration phenomenon on anchoring depth, improve anchoring efficiency, reduce rock-bolt length.
Embodiment 4
Based on embodiment 3, the present embodiment also includes anchor head 4, loading plate 6 and set by anchor foundation 5, the loading plate 6
Put below the prefabricated high-strength core body 2, the lower end of muscle body 1 is fixed through the prefabricated high-strength core body 2 with the loading plate 6
Connection, the top of muscle body 1, which is fixed, to be located in described by anchor foundation 5, and the upper end of muscle body 1 is through described by anchoring base
Plinth 5 is fixedly connected with the anchor head 4；
The upper surface of loading plate 6 with the prefabricated high-strength bottom of core body 2 is seamless contacts setting；
As shown in the figures 1 and 2, ripple is provided with the even gland pipe, the even gland pipe 22 is close to the loading plate 6
The wave height of one end is less than wave height of the even gland pipe 22 away from described one end of loading plate 6, the even gland pipe 22
Close to the loading plate 6 one end ripple distance be more than ripple of the even gland pipe 22 away from described one end of loading plate 6 away from
From.
The present embodiment improves the bonding of even gland pipe 22 and bolthole injecting cement paste 4 by the even ripple of gland pipe 22 of change
Intensity, makes anchor rod anchored section of being produced by the anchoring soil body for transfer uniformly glue frictional resistance, and anchor pole length is saved to improve anchoring efficiency
Degree.
Embodiment 5
A kind of working procedure of the prefabricated high-strength even die mould pressure type anchor rod of core body in end of the present embodiment, described process include
Following steps：
According to the muscle body size of anchor pole prefabricated high-strength core body is prepared in factory and with transporting to job site；
Anchor pole muscle body bottom is located in into high-strength core body and muscle body lower end with the loading plate set below high-strength core body to consolidate
Fixed connection；
It is evenly arranged along muscle body vertical direction and erects ring and colligation Grouting Pipe or in reserving slip casting pore in core body and pass through
Colligation Grouting Pipe；
Bolthole is bored in specified location；
One end that muscle body is provided with to high-strength core body is put into bolthole for initiating terminal, takes hole-bottom slurry-injection mode to enter bolthole
Row slip casting, untill fresh slurry is returned out in aperture；Or
Slip casting is carried out to bolthole to precalculated position, one end that the muscle body of anchor pole is provided with to high-strength core body is put into for initiating terminal
Bolthole after slip casting；
After anchor pole places bolthole, muscle body top is fixed to be located in passing through quilt by the anchor foundation and muscle body upper end
Anchor foundation is fixedly connected with anchor head.
The present embodiment anchor pole muscle body, core body assembled in situ, muscle body simple processing, muscle body transfer more straight unobstructed, anchor pole
Hole slip casting routinely requires slip casting, it is not necessary to take repeatedly even grouting under pressure, compared to usual pressure type anchor bolt construction significantly
Grouting amount and engineering time are saved；Solve pressure type anchor rod slip casting weight to be not easy to ensure with compression strength, in adjacent end
The problems such as interfacial treatment high concentration is in peak value near portion's bearing plate.
More than, preferred embodiment only of the present utility model, but the scope of protection of the utility model is not limited thereto, and is appointed
What those familiar with the art the change that can readily occur in or replaces in the technical scope that the utility model discloses
Change, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with claim
The protection domain defined is defined.
Claims (9)
- A kind of 1. prefabricated high-strength core body, it is characterised in that：Including core body and for making pressure type anchor rod anchoring section and anchoring section week The country rock soil body produces the even gland pipe of uniformly viscous frictional resistance, and the even gland pipe sleeve is located on the outside of the core body, and the core body is The prefabricated cylinder of composite high-strength, the core body axis direction is provided with least one fixing hole, the fixed bore dia It is adapted to pressure type anchor rod muscle body diameter；The core diameter is not less than 5cm, and the core body presses the anchoring of bearing capacity with anchor pole office Section diameter adaptation, the length of the core body are at least 1m；The compression strength of the core body is more than M40.
- 2. prefabricated high-strength core body as claimed in claim 1, it is characterised in that：The even gland pipe be high-density polyethylene plastics or Cylindricality tubular, laemodipodiform tubular or taper tubular structure made of person's polypropylene plastics, the wall thickness of the even gland pipe are not less than 2.5mm。
- A kind of 3. prefabricated high-strength core body, it is characterised in that：Including for making ground around pressure type anchor rod anchoring section and anchoring section Body glues frictional resistance uniformly even gland pipe and at least one inner sleeve, and the inner sleeve is arranged in the even gland pipe, described Placing has composite high-strength material between inner sleeve and the even gland pipe, and the length of the even gland pipe is at least 1m, described interior The internal diameter of sleeve pipe is adapted to the muscle body diameter of pressure type anchor rod.
- 4. prefabricated high-strength core body as claimed in claim 3, it is characterised in that：The even gland pipe be reducing, become ripple spacing and/ Or becoming the even gland pipe of wave height, the even gland pipe is made up of high-density polyethylene plastics or polypropylene plastics, described The wall thickness of even gland pipe is not less than 2.5mm.
- A kind of 5. pressure type anchor rod, it is characterised in that：Including at least one muscle body, prefabricated high-strength core as claimed in claim 1 Body or prefabricated high-strength core body as claimed in claim 3, the muscle body bottom is located in the prefabricated high-strength core body.
- A kind of 6. pressure type anchor rod as claimed in claim 5, it is characterised in that：Also include injecting cement paste, the injecting cement paste is by described in Inside it, the injecting cement paste is composite high-strength material for muscle body, prefabricated high-strength core wrap.
- A kind of 7. pressure type anchor rod as claimed in claim 5, it is characterised in that：The muscle body is deformed bar, regular reinforcement Or prestress wire, the external side of muscle is arranged with smooth sleeve pipe and/or the external side of the muscle is painted with weak cohesive anti-corrosion Coating.
- A kind of 8. pressure type anchor rod as claimed in claim 5, it is characterised in that：Also include anchor head, loading plate and by anchoring base Plinth, the loading plate are arranged on below the prefabricated high-strength core body, and the muscle body lower end passes through the prefabricated high-strength core body and institute State loading plate to be fixedly connected, the muscle body top, which is fixed, to be located in described by anchor foundation, and the muscle body upper end passes through or buried It is placed in and described is fixedly connected by anchor foundation with the anchor head.
- A kind of 9. pressure type anchor rod as claimed in claim 8, it is characterised in that：The loading plate upper surface with it is described prefabricated high-strength Core body bottom is seamless, and contact is set, and is provided with ripple on the even gland pipe, the even gland pipe is close to the one of the loading plate The wave height at end is less than the wave height of the even gland pipe away from described loading plate one end, and the even gland pipe is close to described The ripple distance of one end of loading plate is more than the ripple distance of the even gland pipe away from described loading plate one end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698813.1U CN206928285U (en) | 2017-06-14 | 2017-06-14 | Prefabricated high-strength core body and pressure type anchor rod |
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| CN201720698813.1U CN206928285U (en) | 2017-06-14 | 2017-06-14 | Prefabricated high-strength core body and pressure type anchor rod |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059865A (en) * | 2017-06-14 | 2017-08-18 | 张智猷 | Prefabricated high-strength core body, pressure type anchor rod and its construction method |
| CN109267583A (en) * | 2018-09-17 | 2019-01-25 | 金华电力设计院有限公司 | A kind of wide-angle corner power transmission tower pressure anchor wire cushion cap foundation |
| WO2020151348A1 (en) * | 2019-01-24 | 2020-07-30 | 深圳市地质环境研究院有限公司 | Prefabricated prestressed anchor rod construction method |
| WO2020151347A1 (en) * | 2019-01-24 | 2020-07-30 | 深圳市地质环境研究院有限公司 | Prefabricated prestressed anchor structure |
-
2017
- 2017-06-14 CN CN201720698813.1U patent/CN206928285U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059865A (en) * | 2017-06-14 | 2017-08-18 | 张智猷 | Prefabricated high-strength core body, pressure type anchor rod and its construction method |
| CN109267583A (en) * | 2018-09-17 | 2019-01-25 | 金华电力设计院有限公司 | A kind of wide-angle corner power transmission tower pressure anchor wire cushion cap foundation |
| WO2020151348A1 (en) * | 2019-01-24 | 2020-07-30 | 深圳市地质环境研究院有限公司 | Prefabricated prestressed anchor rod construction method |
| WO2020151347A1 (en) * | 2019-01-24 | 2020-07-30 | 深圳市地质环境研究院有限公司 | Prefabricated prestressed anchor structure |
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