CN106930283A - Tension and compression composite type anchorage cable and peace method processed that a kind of termination is bloomed - Google Patents
Tension and compression composite type anchorage cable and peace method processed that a kind of termination is bloomed Download PDFInfo
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- CN106930283A CN106930283A CN201710259568.9A CN201710259568A CN106930283A CN 106930283 A CN106930283 A CN 106930283A CN 201710259568 A CN201710259568 A CN 201710259568A CN 106930283 A CN106930283 A CN 106930283A
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- tension
- bloomed
- anchor cable
- anchoring section
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Piles And Underground Anchors (AREA)
Abstract
The tension and compression composite type anchorage cable bloomed the present invention relates to a kind of termination and peace method processed, premature failure is caused to solve the problems, such as traditional tension type and pressure anchor wire larger stress concentration occur in anchoring section end.The tension and compression composite type anchorage cable that the present invention is bloomed a kind of termination is made up of pulling force anchoring section, pressure anchoring section and free segment from bottom to top, pulling force anchoring section is distributed a section steel wire bundle of blooming including straggly successively before and after several, section steel wire bundle of blooming is to make the part that anchor cable end steel wire bundle scatters by embossing device, mediated by stone dead wire colligation each section steel wire bundle end of blooming, center section is provided with reinforced steel bar ring with fixed angle of blooming, one reinforcing bar ship type locating support is set along anchor cable at interval of a segment distance, Grouting Pipe colligation is in the emptying aperture that ship type locating support is formed.Tension and compression composite type anchorage cable and peace method processed that the present invention is bloomed a kind of termination can improve the bearing capacity of anchor cable, can be widely applied to the geotechnical anchor engineering such as foundation ditch, side slope of cable bolting field.
Description
Technical field
The invention belongs to geotechnical anchor engineering field, and in particular to tension and compression composite type anchorage cable and system peace that a kind of termination is bloomed
Method.
Background technology
In the geotechnical anchor engineerings such as foundation ditch, side slope, the application of anchor cable is widely.Existing anchor cable is according to loading characteristic master
There are pressure anchor wire and tension type anchor cable, differ from one another.According to different geological conditions features, different anchor cable classes are selected
Type.Existing anchor cable is drilled after excavation face excavation, steel strand wires is positioned in drilling, then cement mortar is passed through into Grouting Pipe
It is poured into drilling and is anchored.Tension type and pressure anchor wire are passed by by anchor force in the form of pulling force or pressure-type respectively
Pass the cement mortar of anchoring section.In this case, two kinds of anchor cables of form can all be produced in anchoring section end and significantly should
Power concentration phenomenon, and then the shear stress between cement mortar and soil layer is exceeded side friction and progressive failure is occurred.Therefore, such as
What reduces the stress concentration of anchoring end, is the difficulties in present geotechnical anchor engineering field.
The content of the invention
The present invention provides tension and compression composite type anchorage cable and the peace method processed that a kind of termination is bloomed, to solve traditional tension type and pressure
There is larger stress concentration and causes the problem of premature failure in anchoring section end in power type anchor cable.The bearing capacity of anchor cable is improved,
Can be widely applied to the geotechnical anchor engineering such as foundation ditch, side slope of cable bolting field.
The tension and compression composite type anchorage cable that a kind of termination in technical solution of the present invention is bloomed, anchors including pulling force from bottom to top
Section, pressure anchoring section and free segment, the pulling force anchoring section are the pressure-bearing body of pressure anchoring section, the steel strand wires quilt of pulling force anchoring section
Divest plastics outsourcing and grease, pulling force anchoring section includes before and after several section steel wire bundle of blooming for distribution straggly successively, described
Section steel wire bundle of blooming is to make the part that anchor cable end steel strand wires scatter by embossing device, and section steel wire bundle end of blooming is with soft
Steel wire lashing is mediated, and center section is placed reinforced steel bar ring and bundled, and is bloomed angle with fixation, and the section that makes to bloom does not bounce back.In addition, edge
The some uniform colligations of steel strand wires are distributed in ship type support surrounding by anchor cable axis direction interval setting ship type locating support, note
Slurry pipe colligation is in (specifically Grouting Pipe colligation is in the emptying aperture formed by ship type locating support) on ship type locating support.
The ship type locating support is reinforcing bar ship type locating support.
Anchor cable of the present invention does not include anchor head.
The present invention also provides a kind of system peace method of the tension and compression composite type anchorage cable bloomed termination, comprises the following steps：
1) drilled in the precalculated position of branch mask；
2) anchor cable end steel strand wires is scattered by embossing device, be formed in before and after pulling force segment limit what is be staggeredly arranged successively
Bloom a section steel wire bundle, a section steel wire bundle end stone dead wire colligation of blooming is mediated, and centre position bundlees reinforced steel bar ring to fix steel
The angle that strand bundle is bloomed；
3) along anchor cable axis direction interval setting ship type locating support, some uniform colligations of steel strand wires are distributed in ship type
Support surrounding, and by Grouting Pipe colligation in (specifically Grouting Pipe colligation is in the sky formed by ship type locating support on locating support
In hole), anchor cable is put into drilling；
4) to cement mortar is injected in hole, tension type anchoring section, pressure-type anchoring section and the free segment of anchor cable are sequentially formed；
5) tensioning, locking are carried out to anchor cable when mortar strength reaches the 80% of design load, that is, completes the construction of anchor cable.
The beneficial effects of the invention are as follows：
(1) anchor cable end steel strand wires are made to scatter by embossing device, formation is bloomed after section steel wire bundle, steel wire bundle and sand
The contact area of slurry becomes big, and the two is fully bonded.The cohesive force between tension anchoring section steel strand wires and mortar is effectively increased,
Reduce anchorage length, saving construction cost.
(2) present invention makes the pressure-bearing body of conventional pressure type anchor cable simultaneously as tension type anchoring section participation work, greatly
Improve the anchoring bearing capacity of anchor cable.
(3) the anchoring concentrated stress of traditional anchorage cable anchoring end is decomposed into a less compression and one less
Tension sum.
(4) this hair solve traditional tension type and pressure anchor wire there is larger stress concentration in anchoring section end and
Caused fail in shear problem, improves the anchorage reliability of anchor cable, and then improves the security of engineering.
(5) it is practical, can extensively substitute conventional pressure type anchor cable and be applied to the geotechnical anchor engineerings such as foundation ditch, side slope neck
Domain.
Brief description of the drawings
Fig. 1 is the schematic diagram of anchor cable of the present invention.
Fig. 2 is anchor cable pulling force anchoring section enlarged drawing.
Fig. 3 is A-A sectional schematic diagrams in Fig. 1, is the connection diagram (profile) of ship type locating support 12 and anchor cable 1
Fig. 4 is the connection diagram (three-dimensional facade figure) of ship type support 12 and anchor cable 1.
Label and symbol description
1- anchor cables；The steel strand wires of 2- decortications and grease；3- is bloomed a section steel wire bundle；4- reinforced steel bar rings；5- stone dead wires；6-
Billet；7- cement mortar；8- anchor holes；9- I-steel；10- gunite concrete surface layers；11- anchorages；12- ship type locating supports；
13- free section of anchor cable；14- anchor cable pressure-type anchoring sections；15- anchor cable tension type anchoring sections.
Specific embodiment
The tension and compression composite type anchorage cable bloomed the present invention relates to a kind of termination and peace method processed, it is below in conjunction with the accompanying drawings and specific real
The present invention will be further described to apply mode.
Embodiment 1
As shown in figure 1, the tension and compression composite type anchorage cable that a kind of termination is bloomed, from bottom to top including pulling force anchoring section 15
(5.0m), pressure anchoring section 14 (5.0m) and free segment 13 (15.0m), the pulling force anchoring section 15 is used as pressure anchoring section 14
Pressure-bearing body, the steel strand wires of wherein pulling force anchoring section 15 remove plastic peel, except degreasing, are bonded with mortar.Pulling force anchoring section 15
Including section steel wire bundle 3 of blooming of distribution straggly successively before and after several, spacing is 1.2m, and section steel wire bundle 3 of blooming is
The part that anchor cable end steel strand wires scatter is made by embossing device, the colligation of 3 end stone dead wire of section steel wire bundle 5 of blooming is mediated,
Center section is provided with reinforced steel bar ring 4 with fixed angle of blooming.Along anchor cable axis direction interval setting reinforcing bar ship type locating support 12, will
The some uniform colligations of steel strand wires are distributed in ship type support surrounding, and Grouting Pipe colligation is in (specifically Grouting Pipe is tied up on locating support
It is tied in the emptying aperture formed by ship type locating support).
A kind of system peace method of the tension and compression composite type anchorage cable that termination is bloomed, comprises the following steps：
1) drilled in the precalculated position of branch mask, the aperture of the drilling is larger than the diameter of section steel wire bundle 3 of blooming,
Bore diameter is
2) peel off the protective layer of anchor cable end and deoil.Anchor cable end steel strand wires is scattered by embossing device, be formed in
The front and rear section steel wire bundle 3 of blooming being staggeredly arranged successively by 1.2m in pulling force segment limit, each end of section steel wire bundle 3 of blooming
Mediated with the colligation of stone dead wire 5 at 0.2m, centre position arranges reinforced steel bar ring 4 to fix the angle that steel wire bundle is bloomed；
3) ship type locating support is made, one reinforcing bar ship type locating support is set along anchor cable at interval of 2.0m~2.5m, will
The some uniform colligations of steel strand wires are distributed in ship type support surrounding, by Grouting Pipe colligation in the hollow hole that locating support is formed,
Anchor cable is put into drilling.The connection diagram of ship type support 12 and anchor cable 1 is as shown in Figures 3 and 4；
4) in work progress, by Grouting Pipe to slip casting is carried out in drilling, to aperture, the tension type anchor of anchor cable is sequentially formed
Gu section 15, pressure-type anchoring section 14 and free segment 13.Secondary grouting can be carried out in the case that slip casting is insufficient.Treat cement mortar
Prestressed stretch-draw, locking are carried out after reaching design strength 80%, in branch mask gunite concrete, that is, the construction of anchor cable is completed.
Claims (4)
1. the tension and compression composite type anchorage cable that a kind of termination is bloomed, from bottom to top including pulling force anchoring section (15), pressure anchoring section (14)
And free segment (13), the pulling force anchoring section (15) is the pressure-bearing body of pressure anchoring section (14), it is characterised in that：Pulling force anchoring section
(15) steel strand wires are stripped plastics outsourcing and grease, and pulling force anchoring section (15) is including distribution straggly is opened successively before and after several
Flower section steel wire bundle (3), section steel wire bundle (3) of blooming is the portion for making anchor cable end steel strand wires scatter by embossing device
Point, each a section steel wire bundle (3) end of blooming is mediated by stone dead wire (5) colligation, and center section is bundled with reinforced steel bar ring (4) with fixation
Bloom angle, the section that makes to bloom does not bounce back, and along anchor cable axis direction interval setting ship type locating support (12), Grouting Pipe colligation is in ship
On type locating support (12).
2. the tension and compression composite type anchorage cable that termination as claimed in claim 1 is bloomed, it is characterised in that：Ship type locating support (12)
Spacing is 2.0m~2.5m.
3. the system peace method of the tension and compression composite type anchorage cable that the termination described in a kind of claim 1 is bloomed, it is characterised in that：Including such as
Lower step：
1) drilled in the precalculated position of branch mask；
2) anchor cable end steel strand wires is scattered by embossing device, be formed in front and rear distribution straggly successively in pulling force anchoring section (15)
A section steel wire bundle (3) of blooming, a section steel wire bundle (3) end stone dead wire (5) colligation of blooming mediate, centre position binding reinforcing bar
Ring (4) is fixing the angle that steel wire bundle is bloomed；
3) along anchor cable axis direction interval setting ship type locating support (12), by Grouting Pipe colligation in ship type locating support (12)
On, anchor cable is put into drilling；
4) to cement mortar (7) is injected in drilling, tension type anchoring section (15), the pressure-type anchoring section (14) of anchor cable are sequentially formed
With free segment (13)；
5) tensioning, locking are carried out to anchor cable when mortar strength reaches the 80% of design load, that is, completes the construction of anchor cable.
4. the system peace method of the tension and compression composite type anchorage cable that termination as claimed in claim 3 is bloomed, it is characterised in that：Ship type is positioned
The spacing of support (12) is 2.0m~2.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259568.9A CN106930283B (en) | 2017-04-20 | 2017-04-20 | Tension-compression composite anchor cable with flowering end and manufacturing and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259568.9A CN106930283B (en) | 2017-04-20 | 2017-04-20 | Tension-compression composite anchor cable with flowering end and manufacturing and installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106930283A true CN106930283A (en) | 2017-07-07 |
| CN106930283B CN106930283B (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710259568.9A Active CN106930283B (en) | 2017-04-20 | 2017-04-20 | Tension-compression composite anchor cable with flowering end and manufacturing and installation method |
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| CN (1) | CN106930283B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330966A (en) * | 2018-03-26 | 2018-07-27 | 华侨大学 | A kind of centering holder for tension and compression composite anchor-rod pressure-bearing anchoring section |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3494134A (en) * | 1967-08-03 | 1970-02-10 | Soletanche | Ground anchor |
| CN2622251Y (en) * | 2003-03-21 | 2004-06-30 | 成都四海岩土工程有限公司 | Pressing/drawing composition type prestress anchorage cable |
| CN205576907U (en) * | 2016-03-08 | 2016-09-14 | 张淑珍 | Anchor rope structure for side slope support retaining wall |
| CN106065624A (en) * | 2016-07-12 | 2016-11-02 | 浙江省交通工程建设集团有限公司 | It is applicable to pass through the permanent seal cooling prestress anchorage cable of broken rock and construction method thereof |
| CN205742224U (en) * | 2016-08-24 | 2016-11-30 | 陕西建工第六建设集团有限公司 | Deep foundation pit supporting construction structure based on campshed Yu anchor cable |
-
2017
- 2017-04-20 CN CN201710259568.9A patent/CN106930283B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3494134A (en) * | 1967-08-03 | 1970-02-10 | Soletanche | Ground anchor |
| CN2622251Y (en) * | 2003-03-21 | 2004-06-30 | 成都四海岩土工程有限公司 | Pressing/drawing composition type prestress anchorage cable |
| CN205576907U (en) * | 2016-03-08 | 2016-09-14 | 张淑珍 | Anchor rope structure for side slope support retaining wall |
| CN106065624A (en) * | 2016-07-12 | 2016-11-02 | 浙江省交通工程建设集团有限公司 | It is applicable to pass through the permanent seal cooling prestress anchorage cable of broken rock and construction method thereof |
| CN205742224U (en) * | 2016-08-24 | 2016-11-30 | 陕西建工第六建设集团有限公司 | Deep foundation pit supporting construction structure based on campshed Yu anchor cable |
Non-Patent Citations (2)
| Title |
|---|
| 刘坤鹏: "《新建京石客运专线石家庄隧道工程重点技术》", 30 November 2012, 河北科学技术出版社 * |
| 国振喜: "《实用建筑工程施工及验收手册-第2版》", 31 October 2004, 中国建筑工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330966A (en) * | 2018-03-26 | 2018-07-27 | 华侨大学 | A kind of centering holder for tension and compression composite anchor-rod pressure-bearing anchoring section |
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| Publication number | Publication date |
|---|---|
| CN106930283B (en) | 2020-08-07 |
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