CN108999186A - Dispersed pressure anchor structure and its construction method - Google Patents
Dispersed pressure anchor structure and its construction method Download PDFInfo
- Publication number
- CN108999186A CN108999186A CN201810959163.0A CN201810959163A CN108999186A CN 108999186 A CN108999186 A CN 108999186A CN 201810959163 A CN201810959163 A CN 201810959163A CN 108999186 A CN108999186 A CN 108999186A
- Authority
- CN
- China
- Prior art keywords
- free segment
- anchoring section
- dispersed pressure
- grouting pipe
- supporting body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Abstract
The invention discloses dispersed pressure anchor structure and its construction methods.The dispersed pressure anchor structure includes anchoring section and free segment; the anchoring section is fixedly connected with free segment; the free segment includes the end to end anchorage of multiple units; one end of the anchorage on top is equipped with protective cover; the bottom side edge of the protective cover is along equipped with base in hollow structure; the anchorage outer wall of lower part is equipped with drilling; the anchoring section includes Grouting Pipe; the side of the Grouting Pipe is evenly distributed multiple supporting bodies, is fixed with multiple non-bending steel cables in the supporting body of lower part.The anchoring section and free segment that the present invention passes through setting, so that cohesive force suffered by anchor pole is in a uniform distribution, and non-bending steel cable quantity corresponding to the different location on anchor pole is different, non-bending steel cable can increase the potential bearing capacity inside anchor pole, and it is to be connected to a fixed with supporting body, improves the utilization efficiency of anchor rod anchored segment length.
Description
Technical field
The present invention relates to soil body support reinforcement equipment technical field more particularly to dispersed pressure anchor structure and its constructions
Method.
Background technique
Currently, being used in the anchor pole of soil-slope supporting, pattern foundation pit supporting structure and substrate anti-floating, structure is generally three kinds, one kind
It is that anchoring section is threaded, there are also one is anchoring section band positioning plate, there are also not only threaded but also with positioning plate one is anchoring section band；
It generally bores a hole when use in soil layer in advance, then anchor pole is placed in hole, the finally slip casting in hole, until slurry solidifies
After reaching certain intensity, anchor pole and cured slurry start to play a role, and prevent the periphery soil body from generating and glide or protuberance, this kind of
Anchor bolt construction process is more, and needs to reach the effect of some strength competence exertion until slurries, so the construction time is also grown.
Through retrieving, Chinese patent application publication No. CN107120132A discloses a kind of anchor pole, solves existing anchor pole peace
Full the problem of hidden danger is larger, working efficiency is low, higher cost, including first body of rod, second body of rod, chain connected nut, unloading nut,
One end of first body of rod, second body of rod is equipped with the external screw thread to match with chain connected nut, first body of rod, second
The body of rod is linked as one by chain connected nut；The other end of second body of rod is provided with and lock washer, locking nut, unloading nut pair
The external screw thread answered successively loads onto lock washer, unloading nut and locking nut at the end.
When in use, external bond stress makes in incremental state the internal pressure of anchor pole to existing anchor pole, thus
The bearing capacity that will cause anchor pole anchor pole itself is excessive, eventually leads to anchor pole fracture, therefore restore in great security risk.
Summary of the invention
The purpose of the present invention is to provide dispersed pressure anchor structure and its construction method, by the anchoring section of setting with
Free segment, so that cohesive force suffered by anchor pole is in a uniform distribution, and without viscous corresponding to the different location on anchor pole
The advantages of steel strand wires quantity is different, and non-bending steel cable can increase the potential bearing capacity inside anchor pole is tied, solves existing anchor pole
When in use, external bond stress makes in state is incremented by, to will cause anchor pole anchor pole itself internal pressure of anchor pole
Bearing capacity it is excessive, eventually lead to anchor pole fracture the problem of.
Dispersed pressure anchor structure according to an embodiment of the present invention, including anchoring section and free segment, the anchoring section with
Free segment is fixedly connected, and the free segment includes the end to end anchorage of multiple units, and one end of the anchorage on top is equipped with
Protective cover, the bottom side edge of the protective cover are equipped with drilling along base in hollow structure, the anchorage outer wall of lower part is equipped with,
The anchoring section includes Grouting Pipe, and the side of the Grouting Pipe is evenly distributed multiple supporting bodies, in the supporting body of lower part
Multiple non-bending steel cables are fixed with, described non-bending steel cable one end sequentially passes through remaining supporting body and the bottom of end and anchorage
End is connected.
Further, multiple isolation rings are uniformly placed on the inner wall of the anchoring section and free segment, the isolation ring
Middle part and four sides are equipped with multiple impenetrating mouths vertically.
Further, the internal diameter of the impenetrating mouth is greater than the outer diameter of non-bending steel cable.
Further, the drilling is connected with the inside of Grouting Pipe.
Further, it is filled with cement slurry inside the Grouting Pipe, the cement slurry passes through the port on supporting body
Flow into slip casting bottom of the tube.
Further, the internal diameter of the port is much larger than the outer diameter of non-bending steel cable.
Further, the non-bending steel cable between the adjacent supporting body successively increases from bottom to top.
Further, the anchoring section isolation ring spacing adjacent with inside free segment is 2-3m.
Further, the supporting body is the axial direction arrangement that fixation hole is opened up along bottom to the anchor pole of drilling.
The construction method of dispersed pressure anchor structure, concrete construction method are as follows:
S1: multiple supporting bodies are sequentially connected by non-bending steel cable, then are fixed on the outer wall of Grouting Pipe, note is passed through
Slurry pipe carries out opening up the fixed supporting body of fixation hole on the ground；
S2: by the slip casting in anchoring section that drills, cement slurry constantly flows into Grouting Pipe by the port on supporting body
Bottom keeps internal cement slurry quality full closely knit；
S3: solidifying to cement slurry, then supporting body can not be extracted out of fixation hole that open up, thus realize fixation, then
Free segment is fixed on top, and cleaning is smooth in free segment, keeping anchorage, smoothly distortionless bar is particularly important；
S4: protective cover is opened, is contacted by base with the soil body on top, base increases the contact surface between anchorage and the soil body
Product, reduces pressure, to realize the fixed support of the anchor pole side slope soil body.
Compared with the prior art, the invention has the beneficial effects that:
1, by the anchoring section of setting and free segment, so that cohesive force suffered by anchor pole is in a uniform distribution, and
Non-bending steel cable quantity corresponding to different location on anchor pole is different, and non-bending steel cable can increase the carrying inside anchor pole
Potentiality, and be connected to a fixed with supporting body, improve the utilization efficiency of anchor rod anchored segment length；
2, multiple unit bolts are just needed when making high-bearing capacity anchor pole, when use prestress wire is as anchor pole bar
When body, each unit bolt needs symmetrical two non-bending steel cables, and the non-bending steel cable quantity in fixing end is more, and
Since the diameter inside free segment is limited, this requires want strict control free segment and soap-free emulsion polymeization steel to twist when anchor pole makes
The gap of line, thus increase anchor rod anchored section of endurance, the bearing capacity of free segment.
3, construction method of the invention is easy and constructs convenient, accelerates the construction efficiency of anchor pole, while anchor pole being set
It is set to free segment and anchoring section, improves the bearing capacity of anchor pole itself.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of dispersed pressure anchor structure proposed by the present invention；
Fig. 2 is the schematic diagram of the section structure of A-A in Fig. 1；
Fig. 3 is the schematic diagram of the section structure of B-B in Fig. 1；
Fig. 4 is the schematic diagram of the section structure of C-C in Fig. 1；
Fig. 5 is the schematic diagram of the section structure of D-D in Fig. 1；
Fig. 6 is the bearing capacity load diagram of dispersed pressure anchor structure proposed by the present invention when in use.
In figure: 1- anchorage, 2- base, 3- drilling, 4- isolation ring, 5- non-bending steel cable, 6- supporting body, 7- cement slurry
Body, 8- Grouting Pipe, 9- protective cover, L1- anchoring section, Lf- free segment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig.1-6, dispersed pressure anchor structure, including anchoring section L1 and free segment Lf, anchoring section L1 and free segment
Lf is fixedly connected, and free segment Lf includes the end to end anchorage 1 of multiple units, and one end of the anchorage 1 on top is equipped with protective cover 9,
The bottom side edge of protective cover 9 is equipped with drilling 3, anchoring section L1 packet along base 2 in hollow structure, 1 outer wall of anchorage of lower part is equipped with
Grouting Pipe 8 is included, the side of Grouting Pipe 8 is evenly distributed there are multiple supporting bodies 6, is fixed with multiple soap-free emulsion polymeizations in the supporting body 6 of lower part
Steel strand wires 5,5 one end of non-bending steel cable sequentially passes through remaining supporting body 6 and end is connected with the bottom end of anchorage 1, by setting
The anchoring section L1 and free segment Lf set, so that cohesive force suffered by anchor pole is in a uniform distribution, and the difference on anchor pole
5 quantity of non-bending steel cable corresponding to position is different, and non-bending steel cable 5 can increase the potential bearing capacity inside anchor pole, and
It is to be connected to a fixed with supporting body 6, improves the utilization efficiency of anchor rod anchored section of L1 length.
Multiple isolation rings 4 are uniformly placed on the inner wall of anchoring section L1 and free segment Lf, the middle part of isolation ring 4 and four sides are equal
It is equipped with multiple impenetrating mouths vertically；The internal diameter of impenetrating mouth is greater than the outer diameter of non-bending steel cable 5；The inside phase to drill with Grouting Pipe 8
Connection；Cement slurry 7 is filled with inside Grouting Pipe 8, cement slurry 7 flows into 8 bottom of Grouting Pipe by the port on supporting body 6
Portion；The internal diameter of port is much larger than the outer diameter of non-bending steel cable 5；Non-bending steel cable 5 between adjacent supporting body 6 is from bottom to top
It successively increases；Adjacent 4 spacing of isolation ring is 2-3m inside anchoring section L1 and free segment Lf；Supporting body 6 is along the bottom of drilling 3
Portion to anchor pole opens up the axial direction arrangement of fixation hole；Multiple unit bolts are just needed when making high-bearing capacity anchor pole, when adopting
When using prestress wire as anchor rod body, each unit bolt needs symmetrical two non-bending steel cables 5, in fixing end
5 quantity of non-bending steel cable it is more, and since the diameter inside free segment Lf is limited, this requires when anchor pole makes
The gap of strict control free segment Lf Yu non-bending steel cable 5 are wanted, thus increase the endurance of anchor rod anchored section of L1, free segment Lf
Bearing capacity.
The construction method of dispersed pressure anchor structure, concrete construction method are as follows:
Multiple supporting bodies 6: being sequentially connected by non-bending steel cable 5, then be fixed on the outer wall of Grouting Pipe 8 by S1, is led to
Grouting Pipe 8 is crossed to carry out opening up the fixed supporting body 6 of fixation hole on the ground；
S2: by 3 slip castings in anchoring section L1 that drill, cement slurry 7 constantly flows into slip casting by the port on supporting body 6
The bottom of pipe 8 keeps internal 7 mass of cement slurry full closely knit；
S3: solidifying to cement slurry 7, then supporting body 6 can not be extracted out of fixation hole that open up, thus realize fixation, then
Cleaning is smooth in the fixed free segment Lf in top, free segment Lf, keeping anchorage, smoothly distortionless bar is particularly important；
S4: protective cover 9 is opened, is contacted by base 2 with the soil body on top, base 2 increases connecing between anchorage 1 and the soil body
Contacting surface product, reduces pressure, to realize the fixed support of the anchor pole side slope soil body.
Construction method of the invention is easy and constructs convenient, accelerates the construction efficiency of anchor pole, while anchor pole being arranged
At free segment Lf and anchoring section L1, the bearing capacity of anchor pole itself is improved.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. dispersed pressure anchor structure, it is characterised in that: including anchoring section (L1) and free segment (Lf), the anchoring section (L1)
It is fixedly connected with free segment (Lf), the free segment (Lf) includes the end to end anchorage of multiple units (1), the anchor on top
The one end for having (1) is equipped with protective cover (9), and the bottom side edge of the protective cover (9) is along equipped with base in hollow structure (2), lower part
The anchorage (1) outer wall be equipped with drilling (3), the anchoring section (L1) includes Grouting Pipe (8), the one of the Grouting Pipe (8)
Side is evenly distributed to be had multiple supporting bodies (6), is fixed with multiple non-bending steel cables (5) in the supporting body (6) of lower part, described
Non-bending steel cable (5) one end sequentially passes through remaining supporting body (6) and end is connected with the bottom end of anchorage (1).
2. dispersed pressure anchor structure according to claim 1, it is characterised in that: the anchoring section (L1) and free segment
(Lf) it is uniformly placed on inner wall multiple isolation rings (4), middle part and four sides of the isolation ring (4) are equipped with multiple pass through vertically
Wear mouth.
3. dispersed pressure anchor structure according to claim 2, it is characterised in that: the internal diameter of the impenetrating mouth is greater than nothing
Bond the outer diameter of steel strand wires (5).
4. dispersed pressure anchor structure according to claim 1, it is characterised in that: the drilling (3) and Grouting Pipe (8)
Inside be connected.
5. dispersed pressure anchor structure according to claim 4, it is characterised in that: filling inside the Grouting Pipe (8)
Have cement slurry (7), the cement slurry (7) flows into Grouting Pipe (8) bottom by the port on supporting body (6).
6. dispersed pressure anchor structure according to claim 5, it is characterised in that: the internal diameter of the port is much larger than nothing
Bond the outer diameter of steel strand wires (5).
7. dispersed pressure anchor structure according to claim 1, it is characterised in that: between the adjacent supporting body (6)
Non-bending steel cable (5) successively increase from bottom to top.
8. dispersed pressure anchor structure according to claim 2, it is characterised in that: the anchoring section (L1) and free segment
(Lf) internal adjacent isolation ring (4) spacing is 2-3m.
9. dispersed pressure anchor structure according to claim 1, it is characterised in that: the supporting body (6) is along brill
Bottom to the anchor pole in hole (3) opens up the axial direction arrangement of fixation hole.
10. the construction method of -9 described in any item dispersed pressure anchor structures according to claim 1, which is characterized in that tool
Body construction method is as follows:
Multiple supporting bodies (6): being sequentially connected by non-bending steel cable (5), then be fixed on the outer wall of Grouting Pipe (8) by S1,
It carries out opening up fixation hole fixation supporting body (6) on the ground by Grouting Pipe (8)；
S2: by drilling (3) toward anchoring section (L1) interior slip casting, cement slurry (7) is constantly flowed by the port on supporting body (6)
The bottom of Grouting Pipe (8) keeps internal cement slurry (7) quality full closely knit；
S3: solidifying to cement slurry (7), then supporting body (6) can not be extracted out of fixation hole that open up, thus realize fixation, then
Fixed free segment (Lf) on top, cleaning is smooth in free segment (Lf), keeping anchorage, smoothly distortionless bar is particularly important；
S4: it opens protective cover (9), is contacted by base (2) with the soil body on top, base (2) increases between anchorage (1) and the soil body
Contact area, pressure is reduced, to realize the fixed support of the anchor pole side slope soil body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959163.0A CN108999186A (en) | 2018-08-22 | 2018-08-22 | Dispersed pressure anchor structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959163.0A CN108999186A (en) | 2018-08-22 | 2018-08-22 | Dispersed pressure anchor structure and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108999186A true CN108999186A (en) | 2018-12-14 |
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ID=64594060
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810959163.0A Pending CN108999186A (en) | 2018-08-22 | 2018-08-22 | Dispersed pressure anchor structure and its construction method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101025915B1 (en) * | 2010-08-02 | 2011-03-30 | 삼진스틸산업(주) | Multiple compression dispersion pressurization-type permanent anchor assembly |
| CN202380489U (en) * | 2011-11-18 | 2012-08-15 | 中国建筑第七工程局有限公司 | Anti-floating anchor rod |
| CN202416310U (en) * | 2011-10-08 | 2012-09-05 | 浙江海天建设集团有限公司 | Pressure-dispersed anti-floating anchor rod |
| KR20140022304A (en) * | 2012-08-14 | 2014-02-24 | 주식회사 동평 | Using pc strand ground anchor and method for ground reinforcement using the same |
| CN208733626U (en) * | 2018-08-22 | 2019-04-12 | 深圳市市政工程总公司 | Dispersed pressure anchor structure |
-
2018
- 2018-08-22 CN CN201810959163.0A patent/CN108999186A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101025915B1 (en) * | 2010-08-02 | 2011-03-30 | 삼진스틸산업(주) | Multiple compression dispersion pressurization-type permanent anchor assembly |
| CN202416310U (en) * | 2011-10-08 | 2012-09-05 | 浙江海天建设集团有限公司 | Pressure-dispersed anti-floating anchor rod |
| CN202380489U (en) * | 2011-11-18 | 2012-08-15 | 中国建筑第七工程局有限公司 | Anti-floating anchor rod |
| KR20140022304A (en) * | 2012-08-14 | 2014-02-24 | 주식회사 동평 | Using pc strand ground anchor and method for ground reinforcement using the same |
| CN208733626U (en) * | 2018-08-22 | 2019-04-12 | 深圳市市政工程总公司 | Dispersed pressure anchor structure |
Non-Patent Citations (1)
| Title |
|---|
| 刘忠臣, 范景伦, 张飞, 陈国刚: "压力分散型锚杆技术", 包头钢铁学院学报, no. 02, pages 165 - 169 * |
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