CN109252518A - A kind of reducing anchor rod and its anchoring process - Google Patents

A kind of reducing anchor rod and its anchoring process Download PDF

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Publication number
CN109252518A
CN109252518A CN201811393840.3A CN201811393840A CN109252518A CN 109252518 A CN109252518 A CN 109252518A CN 201811393840 A CN201811393840 A CN 201811393840A CN 109252518 A CN109252518 A CN 109252518A
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CN
China
Prior art keywords
variable diameter
standard block
unit
diameter unit
tail
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Granted
Application number
CN201811393840.3A
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Chinese (zh)
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CN109252518B (en
Inventor
沈义
信思源
张琨
徐晓娜
叶飞
吴士超
李楠
王作成
张然
刘宇
王策
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Heilongjiang College of Construction
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Heilongjiang College of Construction
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Priority to CN201811393840.3A priority Critical patent/CN109252518B/en
Publication of CN109252518A publication Critical patent/CN109252518A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads

Abstract

A kind of reducing anchor rod and its anchoring process are related to a kind of anchor pole and its anchoring process.Standard block section is equipped with central tube, standard block section head and the tail both ends are integrally formed with guide protrusion one and guide groove one respectively, standard block section lateral wall is fixed with strengthened thread, variable diameter unit section is equipped with eccentric tubes, variable diameter unit section head and the tail both ends are integrally formed with guide protrusion two and guide groove two respectively, variable diameter unit section lateral wall is fixed with reaming sword, it is coaxially attached per adjacent standard block section and by a pressure spring between variable diameter unit section head and the tail, multiple standard block sections carry out the company of wearing by wirerope with multiple variable diameter unit sections, wirerope one end is fixed with limit sphere, the wirerope other end is fastened by locating piece and is positioned, standard block section lateral wall positioned at tail portion is also successively equipped with stop grouting plug, backing plate and nut.Variable diameter can be carried out to duct, structure is more reasonable, stablizes effective.

Description

A kind of reducing anchor rod and its anchoring process
Technical field
The present invention relates to a kind of anchor pole and its anchoring process, especially a kind of reducing anchor rod and its anchoring process.
Background technique
Bolt support technology due to its simple process, operation quickly, cost is relatively low the advantages that and be widely used in road In the support reinforcement structure in bridge field.Axial cut is formed since anchor pole is by axial tension, between Anchor Agent and duct inner wall to answer Power, the shear stress for needing Anchor Agent and duct adhesive surface to provide can overcome the pulling force of anchor pole, just be enough to ensure that anchoring effectively, because This, suspension roof support is more demanding to anchor point rock-soil layer.
It is so that duct is generated variable diameter in drilling to improve the main means that anchor rod anchored effect is taken at present, to improve The tensile capacity of anchor pole, but the prior art to duct carry out variable diameter when, it is common that utilize the elastic force of spring, such as Granted publication Number CN105887880B, authorized announcement date on December 12nd, 2017, the patent of invention of entitled " a kind of anchoring process of anchor pole ", There are also Authorization Notice No. CN105401882B, authorized announcement date on June 15th, 2018, a kind of entitled " tunnel anchor hole bottom hole Counterboring apparatus " patent of invention etc., be difficult to determine whether effectively to complete using the elastic force of spring when carrying out variable diameter to duct Variable diameter, degree of stability be not high.
Therefore, it to solve unstable factor caused by spring member in the prior art, needs a kind of more rationally and steady Fixed effective reducing anchor rod.
Summary of the invention
To solve deficiency existing for background technique, the present invention provides a kind of reducing anchor rod and its anchoring process.
Realize above-mentioned purpose, the present invention takes following technical proposals: a kind of reducing anchor rod, including bolt body, stop grouting plug, Backing plate and nut, the bolt body include the multiple standard block sections and multiple variable diameter units that head and the tail are corresponding and are arranged alternately Section, the standard block section and the variable diameter unit section are circular tube shaped component, and standard block section is equipped with central tube, standard list Member section head and the tail both ends are corresponding with the central tube respectively and are integrally formed with guide protrusion one and guide groove one, standard block section Lateral wall is fixed with strengthened thread, and variable diameter unit section is equipped with eccentric tubes, variable diameter unit section head and the tail both ends respectively with the bias Pipeline is corresponding and is integrally formed with guide protrusion two and guide groove two, and variable diameter unit section lateral wall is fixed far from eccentric tubes side Have reaming sword, between the guide protrusion two and the guide groove one and the guide protrusion one and the guide groove two it Between shape match, per adjacent standard block section and variable diameter unit section head and the tail between be coaxially attached by a pressure spring, Multiple standard block sections carry out the company of wearing by wirerope with multiple variable diameter unit sections, and described wirerope one end is pierced by positioned at stem Standard block section is simultaneously fixed with limit sphere, and the wirerope other end is pierced by the standard block section positioned at tail portion and is fastened by locating piece Positioning, the standard block section lateral wall positioned at tail portion are also successively equipped with stop grouting plug, backing plate and nut.
A kind of anchoring process of reducing anchor rod of the invention, includes the following steps:
Step 1: drilling out the consistent duct of diameter in anchor point first with drill bit, later according to the depth in duct, chooses respective counts The standard block section of amount is assembled with variable diameter unit section by pressure spring, and is carried out the company of wearing by wirerope and formed reducing anchor rod, It is protruded into duct, keeping pressure spring at this time is that nature keeps standard block section and variable diameter unit section coaxial;
Step 2: pull out wirerope make standard block section and variable diameter unit section guide protrusion one or guide protrusion two with lead Draw and be seated positioning under the action of groove one or guide groove two, since the eccentric setting of variable diameter unit section makes itself and standard block section Dislocation fastens wirerope by locating piece and positions, and makes the reaming sword of variable diameter unit section by hole using drilling machine rotation reducing anchor rod Road corresponding position expands into major diameter section;
Step 3: removing locating piece and install stop grouting plug, backing plate and nut, and Anchor Agent, Anchor Agent perfusion is perfused by reducing anchor rod When can open limit sphere and full of duct, complete anchoring after Anchor Agent solidification.
Compared with prior art, the beneficial effects of the present invention are: the present invention is handed over by standard block section and variable diameter unit section It is constituted for assembly, while pressure spring can guarantee that standard block section sets corresponding with variable diameter unit section, and not influencing the two can Dislocation variable diameter under wirerope tensioning function, and then variable diameter is carried out to duct by the reaming sword of variable diameter unit section, structure is more Adduction reason, stablizes effectively, has highly application value.
Detailed description of the invention
Fig. 1 is that reducing anchor rod of the invention carries out the structural schematic diagram before variable diameter;
Fig. 2 is that reducing anchor rod of the invention carries out the structural schematic diagram after variable diameter;
Fig. 3 is the portion the A enlarged drawing of Fig. 2;
Fig. 4 is the isometric cutaway view of standard block section of the invention;
Fig. 5 is the isometric cutaway view of variable diameter unit section of the invention;
Fig. 6 is the axonometric drawing of locating piece of the invention;
Fig. 7 is the anchor structure schematic diagram of reducing anchor rod of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in the present invention It states, it is clear that described embodiment is only a part of the embodiment of invention, instead of all the embodiments, based in the present invention Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, It shall fall within the protection scope of the present invention.
Specific embodiment 1: as shown in Fig. 1 ~ Fig. 7, the invention discloses a kind of reducing anchor rod, including bolt body, only Slurry plug 10, backing plate 6 and nut 7, the bolt body include corresponding head and the tail and multiple standard block sections 1 for being arranged alternately and more A variable diameter unit section 2, the standard block section 1 and the variable diameter unit section 2 are circular tube shaped component, and standard block section 1 is equipped with Central tube 1-1,1 head and the tail both ends of standard block section are corresponding with the central tube 1-1 respectively and are integrally formed with guide protrusion one One 1-3 of 1-2 and guide groove, 1 lateral wall of standard block section are fixed with strengthened thread 1-4, and variable diameter unit section 2 is equipped with eccentric tubes 2-1,2 head and the tail both ends of variable diameter unit section are corresponding with the eccentric tubes 2-1 respectively and are integrally formed with two 2-2 of guide protrusion and guiding Two 2-3 of groove, 2 lateral wall of variable diameter unit section are fixed with reaming sword 2-4, the guide protrusion two far from the side eccentric tubes 2-1 Shape matches between one 1-3 of 2-2 and the guide groove and between two 2-3 of one 1-2 of the guide protrusion and the guide groove It closes, is coaxially attached between every 2 head and the tail of adjacent standard block section 1 and variable diameter unit section by a pressure spring 3, multiple standards Unit section 1 and multiple variable diameter unit sections 2 pass through wirerope 8 and carry out the company of wearing, and described 8 one end of wirerope is pierced by the standard positioned at stem Unit section 1 is simultaneously fixed with limit sphere 8-1, and 8 other end of wirerope is pierced by the standard block section 1 positioned at tail portion and by locating piece 9 Fastening positioning, 1 lateral wall of standard block section positioned at tail portion are also successively equipped with stop grouting plug 10, backing plate 6 and nut 7.
Specific embodiment 2: as shown in Fig. 1,2,4,5, present embodiment is made to specific embodiment one into one Step explanation, the length of the standard block section 1 are not less than the length of the variable diameter unit section 2, and standard block section 1 and variable diameter list The thickness of member section 2 is identical.
Specific embodiment 3: as shown in Fig. 3,4,5, present embodiment be specific embodiment one is made it is further Illustrate, the head and the tail both ends of the standard block section 1 and the variable diameter unit section 2 be coaxially recessed with respectively tubular folding and unfolding groove 4 and Annular clamping groove 5, every described 3 one end of pressure spring are fixed on corresponding 4 bottom of tubular folding and unfolding groove, and every pressure spring 3 is another One end is arranged with the corresponding annular clamping interference fit of groove 5.
Specific embodiment 4: as shown in Figure 1, present embodiment is made furtherly to specific embodiment one It is bright, when the pressure spring 3 is in natural length, it is located at the top of one 1-2 of two 2-2 of guide protrusion or the guide protrusion corresponding Within the scope of two 2-3 of one 1-3 of guide groove or the guide groove.
Specific embodiment 5: as shown in Fig. 3,4,5, present embodiment be specific embodiment one is made it is further Illustrate, one 1-2 of guide protrusion and two 2-2 of the guide protrusion are straight prism-frustum-shaped, and work as one 1-2 of guide protrusion or guiding When inserting cooperation between one 1-3 of two 2-2 of protrusion and two 2-3 of the guide groove or the guide groove, the standard block section 1 It is spaced between the variable diameter unit section 2.
Specific embodiment 6: as shown in Fig. 1,2,6, present embodiment be specific embodiment one is made it is further Illustrate, the locating piece 9 includes limit plectane 9-1 and locating pipe head 9-2, the limit plectane 9-1 and locating pipe head 9-2 coaxial It is fixed as one and penetrates through setting, the locating pipe head 9-2 tube wall radially opens up a tapped through hole and is screwed with fastening spiral shell Bolt 9-3, the fastening bolt 9-3 carry out fastening positioning to the wirerope 8 across locating pipe head 9-2.
Specific embodiment 7: as shown in Fig. 1 ~ Fig. 7, present embodiment discloses a kind of specific embodiment one ~ specific A kind of anchoring process of reducing anchor rod described in any specific embodiment in embodiment six, the anchoring process include as follows Step:
Step 1: drilling out the consistent duct 11 of diameter in anchor point first with drill bit, later according to the depth in duct 11, chooses phase It answers the standard block section 1 of quantity to assemble with variable diameter unit section 2 by pressure spring 3, and the company's of wearing composition is carried out by wirerope 8 and is become Diameter anchor pole is protruded into duct 11, and keeping pressure spring 3 at this time is that nature keeps standard block section 1 and variable diameter unit section 2 same Axis;
Step 2: pulling out wirerope 8 makes standard block section 1 and variable diameter unit section 2 in one 1-2 of guide protrusion or guide protrusion It is seated positioning under the action of two 2-2 and two 2-3 of one 1-3 of guide groove or guide groove, due to the eccentric setting of variable diameter unit section 2 So that it is misplaced with standard block section 1, wirerope 8 is fastened by locating piece 9 and is positioned, makes variable diameter using drilling machine rotation reducing anchor rod The reaming sword 2-4 of unit section 2 expands 11 corresponding position of duct at major diameter section 11-1;
Step 3: removing locating piece 9 and install stop grouting plug 10, backing plate 6 and nut 7, and Anchor Agent 12, anchoring is perfused by reducing anchor rod Agent 12 can open limit sphere 8-1 and full of duct 11 when being perfused, Anchor Agent 12 completes anchoring after solidifying.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in the form of others dress body.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that by all in the meaning and scope for the condition of equivalent for falling in claim Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (7)

1. a kind of reducing anchor rod, including bolt body, stop grouting plug (10), backing plate (6) and nut (7), it is characterised in that: described Bolt body includes the multiple standard block sections (1) and multiple variable diameter unit sections (2) that head and the tail are corresponding and are arranged alternately, the standard Unit section (1) and the variable diameter unit section (2) are circular tube shaped component, and standard block section (1) is equipped with central tube (1-1), mark Quasi- unit section (1) head and the tail both ends are corresponding with the central tube (1-1) respectively and are integrally formed with guide protrusion one (1-2) and guiding Groove one (1-3), standard block section (1) lateral wall are fixed with strengthened thread (1-4), and variable diameter unit section (2) is equipped with eccentric tubes (2-1), variable diameter unit section (2) head and the tail both ends are corresponding with the eccentric tubes (2-1) respectively and are integrally formed with two (2- of guide protrusion 2) and guide groove two (2-3), variable diameter unit section (2) lateral wall are fixed with reaming sword (2- far from the side eccentric tubes (2-1) 4), between the guide protrusion two (2-2) and the guide groove one (1-3) and the guide protrusion one (1-2) is led with described Draw shape between groove two (2-3) to match, pass through per adjacent standard block section (1) and between variable diameter unit section (2) head and the tail A piece pressure spring (3) is coaxially attached, and multiple standard block sections (1) and multiple variable diameter unit sections (2) are carried out by wirerope (8) The company of wearing, described wirerope (8) one end are pierced by the standard block section (1) positioned at stem and are fixed with limit sphere (8-1), wirerope (8) other end is pierced by the standard block section (1) positioned at tail portion and is fastened by locating piece (9) and positions, the standard positioned at tail portion Unit section (1) lateral wall is also successively equipped with stop grouting plug (10), backing plate (6) and nut (7).
2. a kind of reducing anchor rod according to claim 1, it is characterised in that: the length of the standard block section (1) is not small In the length of the variable diameter unit section (2), and standard block section (1) is identical as the thickness of variable diameter unit section (2).
3. a kind of reducing anchor rod according to claim 1, it is characterised in that: the standard block section (1) and the variable diameter The head and the tail both ends of unit section (2) are coaxially recessed with tubular folding and unfolding groove (4) and annular clamping groove (5), the every pressure respectively Spring (3) one end is fixed on corresponding tubular folding and unfolding groove (4) bottom, every pressure spring (3) other end and the corresponding ring Shape is clamped the setting of groove (5) interference fit.
4. a kind of reducing anchor rod according to claim 1, it is characterised in that: when the pressure spring (3) is in natural length, institute It states and is located at the corresponding guide groove one (1-3) or described at the top of guide protrusion two (2-2) or the guide protrusion one (1-2) In guide groove two (2-3) range.
5. a kind of reducing anchor rod according to claim 1, it is characterised in that: the guide protrusion one (1-2) and described lead Drawing two (2-2) of protrusion is straight prism-frustum-shaped, and when guide protrusion one (1-2) or guide protrusion two (2-2) and the guide groove When inserting cooperation between two (2-3) or the guide groove one (1-3), the standard block section (1) and the variable diameter unit section (2) spaced between.
6. a kind of reducing anchor rod according to claim 1, it is characterised in that: the locating piece (9) includes limit plectane (9- 1) and locating pipe head (9-2), the limit plectane (9-1) and locating pipe head (9-2) are coaxial is fixed as one and penetrates through setting, institute Locating pipe head (9-2) tube wall is stated radially to open up a tapped through hole and be screwed with fastening bolt (9-3), the fastening bolt (9-3) carries out fastening positioning to the wirerope (8) across locating pipe head (9-2).
7. it is a kind of according to claim 1 in -6 reducing anchor rod described in any claim anchoring process, it is characterised in that: institute Anchoring process is stated to include the following steps:
Step 1: drilling out the consistent duct of diameter (11) in anchor point first with drill bit, later according to the depth of duct (11), choosing Take the standard block section (1) of respective numbers and variable diameter unit section (2) to assemble by pressure spring (3), and by wirerope (8) into The row company of wearing forms reducing anchor rod, is protruded into duct (11), and keeping pressure spring (3) at this time is that nature makes standard block section (1) coaxial with variable diameter unit section (2);
Step 2: pull out wirerope (8) make standard block section (1) and variable diameter unit section (2) in guide protrusion one (1-2) or It is seated positioning under the action of guide protrusion two (2-2) and guide groove one (1-3) or guide groove two (2-3), due to variable diameter list The eccentric setting of member section (2) makes it misplace with standard block section (1), is fastened and is positioned to wirerope (8) by locating piece (9), benefit Expand the reaming sword (2-4) of variable diameter unit section (2) at major diameter section duct (11) corresponding position with drilling machine rotation reducing anchor rod (11-1);
Step 3: removing locating piece (9) and install stop grouting plug (10), backing plate (6) and nut (7), is perfused and is anchored by reducing anchor rod Agent (12), Anchor Agent (12) can open limit sphere (8-1) and full of duct (11), complete after Anchor Agent (12) solidification when being perfused Anchoring.
CN201811393840.3A 2018-11-21 2018-11-21 Variable-diameter anchor rod and anchoring method thereof Active CN109252518B (en)

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CN109252518B CN109252518B (en) 2020-08-18

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11311081A (en) * 1998-04-28 1999-11-09 Kumagai Gumi Co Ltd Work execution method of ground anchor by variable bit
CN1963043A (en) * 2005-11-11 2007-05-16 中国京冶建设工程承包公司 Construction method for mechanical hole reaming of anchor rod
CN202140022U (en) * 2011-07-11 2012-02-08 无锡金帆钻凿设备有限公司 Anchor rod bottom-enlarging bit
CN204899780U (en) * 2015-04-24 2015-12-23 天地科技股份有限公司 Weak glued soft rock tunnel anchorage holes reaming device
CN204959746U (en) * 2015-08-18 2016-01-13 河海大学 Expand integral type stock soon
CN105952380A (en) * 2016-06-17 2016-09-21 四川众基精锚工程技术有限公司 Die chambering equipment and chambering method thereof
CN107327271A (en) * 2017-06-26 2017-11-07 深圳宏业基岩土科技股份有限公司 The eccentric down-hole hammer of anchor pole drilling classification reaming

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11311081A (en) * 1998-04-28 1999-11-09 Kumagai Gumi Co Ltd Work execution method of ground anchor by variable bit
CN1963043A (en) * 2005-11-11 2007-05-16 中国京冶建设工程承包公司 Construction method for mechanical hole reaming of anchor rod
CN202140022U (en) * 2011-07-11 2012-02-08 无锡金帆钻凿设备有限公司 Anchor rod bottom-enlarging bit
CN204899780U (en) * 2015-04-24 2015-12-23 天地科技股份有限公司 Weak glued soft rock tunnel anchorage holes reaming device
CN204959746U (en) * 2015-08-18 2016-01-13 河海大学 Expand integral type stock soon
CN105952380A (en) * 2016-06-17 2016-09-21 四川众基精锚工程技术有限公司 Die chambering equipment and chambering method thereof
CN107327271A (en) * 2017-06-26 2017-11-07 深圳宏业基岩土科技股份有限公司 The eccentric down-hole hammer of anchor pole drilling classification reaming

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