CN103233470B - Recyclable anchor rod system for reinforcing joint surfaces of rocky slopes and mounting method of recyclable anchor rod system - Google Patents
Recyclable anchor rod system for reinforcing joint surfaces of rocky slopes and mounting method of recyclable anchor rod system Download PDFInfo
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- CN103233470B CN103233470B CN201310136969.7A CN201310136969A CN103233470B CN 103233470 B CN103233470 B CN 103233470B CN 201310136969 A CN201310136969 A CN 201310136969A CN 103233470 B CN103233470 B CN 103233470B
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- anchor rod
- concrete
- fixed block
- recoverable
- sleeve pipe
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Abstract
The invention discloses a recyclable anchor rod system for reinforcing joint surfaces of rocky slopes and a mounting method of the recyclable anchor rod system. The recyclable anchor rod system comprises a fixed anchor rod, a concrete precast element, a polyvinyl chloride (PVC) casing, a concrete fixed block and a recyclable anchor rod, wherein a threaded hole is opened in the concrete precast element, the tail end of the fixed anchor rod and the front end of the recyclable anchor rod are arranged in the concrete threaded hole oppositely, the PVC casing is sleeved on the recyclable anchor rod, one end of the PVC is embedded into the concrete precast element, and the other end of the PVC is embedded into the concrete fixed block. The system is simple in structure, convenient to operate, economical, practical and capable of anchoring rocky slopes with joints to improve the stress intensity of the anchor rod at joints; and the anchor rod can be recycled simultaneously.
Description
Technical field
The present invention relates to a kind of mounting method reinforcing the recoverable anchor rod system of rock side slope joint plane, specifically relate to a kind of passing through in the strengthening supporting effect of rock side slope joint plane position and recuperable novel anchor rod system.
Background technology
At present, the application of Full-grouted Bolt in reinforcing rock slope engineering is long-standing, many scholars analyze the research of its axle power and shear stress distribution of force form from theoretical and field trial to Full-grouted Bolt supporting, result shows that the axle power that anchor pole is subject at joint plane position and shear stress are maximum, therefore local stiffening measure must be taked to anchor pole, otherwise because stressed inhomogeneities can cause anchor pole to occur destroying early than intended performance, reduce the stability of side slope, potential harm is caused to people's safety and national interests.On the other hand, the single use of anchor pole, to the waste of material, is also very uneconomic, is therefore necessary to recycle anchor pole.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of mounting method of the novel anchor rod recoverable anchor rod system by also recycling in the strengthening supporting effect of rock side slope joint plane position.
In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of recoverable anchor rod system of reinforcing rock side slope joint plane, comprise fixing anchor bar, concrete precast element, PVC sleeve pipe, concrete fixed block, recoverable anchor rod, screwed hole is offered in the middle of concrete precast element, the tail end of fixing anchor bar and the front end of recoverable anchor rod are relatively arranged in concrete screwed hole, sheathed PVC sleeve pipe on recoverable anchor rod, the tail end of recoverable anchor rod arranges concrete fixed block, one end of PVC sleeve pipe embeds in concrete precast element, and the other end of PVC sleeve pipe embeds concrete fixed block.
Described concrete precast element outer shape is quincunx or X, Y type.
Reinforce a mounting method for the recoverable anchor rod system of rock side slope joint plane, comprise the following steps:
The first step, borehole makes anchor, and fixing anchor bar is squeezed into rock side slope;
Second step, prepares concrete precast element and offers screwed hole, fixing anchor bar tail end and recoverable anchor rod is screwed by screw thread and enters anchor hole until fixing anchor bar contacts with recoverable anchor rod;
3rd step, sheathed PVC sleeve pipe on recoverable anchor rod, in the fixedly embedded concrete precast element in one end of PVC sleeve pipe;
4th step, prepares concrete fixed block, and concrete fixed block is arranged at the tail end of recoverable anchor rod, in the fixedly embedded concrete fixed block of the other end of PVC sleeve pipe;
5th step, carries out grouting anchoring, is in the milk to concrete fixed block.
Described concrete precast element is positioned at joint plane.
Concrete fixed block and recoverable anchor rod are fixed by lock nut.
Compared with prior art, the invention has the beneficial effects as follows: this apparatus structure is simple, easy to operate, economical and practical, for the rock side slope that there is joint carry out anchoring can strengthen anchor pole at joint place by force intensity, and anchor pole can be recycled, and kills two birds with one stone.
Accompanying drawing explanation
Fig. 1 is the layout plan that the present invention reinforces the recoverable anchor rod system of rock side slope joint plane;
Fig. 2 is the structural representation that the present invention reinforces the recoverable anchor rod system of rock side slope joint plane;
Wherein: 1 is rock side slope, 2 is joint plane, and 3 is anchor pole; 4 is fixing anchor bar, and 5 is concrete precast element, and 6 is PVC sleeve pipe, and 7 is concrete fixed block, and 8 is recoverable anchor rod, and 9 is lock nut.
Detailed description of the invention
2 further illustrate embodiments of the present invention by reference to the accompanying drawings.
As shown in Figure 2, the present invention includes fixing anchor bar 4, concrete precast element 5, PVC sleeve pipe 6, concrete fixed block 7, recoverable anchor rod 8, lock nut more than 9 part.Fixing anchor bar 4 head is taper, and afterbody is shape of threads; Be screwed round steel pipe in the middle of concrete precast element 5, fixing anchor bar 4 afterbody and concrete precast element 5 are screwed by screw thread, and recoverable anchor rod 8 head and concrete precast element 5 are also screwed by screw thread and contact with fixing anchor bar 4.Concrete fixed block 7 is at recoverable anchor rod 8 afterbody fixing anchor bar, and in concrete fixed block 7 arranged outside lock nut 9, PVC sleeve pipe 6 gos deep into concrete precast element 5 and concrete fixed block 7 certain distance, makes recoverable anchor rod 8 be sealed in PVC sleeve pipe 6, realizes harmless recovery.The position of concrete precast element 5 is determined according to the position at joint, because concrete precast element 5 appearance is quincunx or X, Y shape, add the contact area with the soil body greatly, too increase shear resistance, anti-pressure ability, avoids anchor pole due to uneven and destroy at joint place local pressure.
Key technology is to control concrete precast element position at joint plane position, so just can play and add strong cured effect.After completing, grouting anchoring is carried out to anchor pole, finally lock by lock nut at recoverable anchor rod afterbody concreting fixed block.For the recovery of anchor pole, as long as unload lock nut, the regular hexagon nut of counter-rotating recoverable anchor rod afterbody, just can take out recoverable anchor rod from concrete precast element, simple to operate, time saving and energy saving.
Claims (3)
1. reinforce the mounting method of the recoverable anchor rod system of rock side slope joint plane for one kind, it is characterized in that, recoverable anchor rod system comprises fixing anchor bar, concrete precast element, PVC sleeve pipe, concrete fixed block, recoverable anchor rod, screwed hole is offered in the middle of concrete precast element, the tail end of fixing anchor bar and the front end of recoverable anchor rod are relatively arranged in concrete screwed hole, sheathed PVC sleeve pipe on recoverable anchor rod, the tail end of recoverable anchor rod arranges concrete fixed block, one end of PVC sleeve pipe embeds in concrete precast element, the other end of PVC sleeve pipe embeds concrete fixed block, mounting method comprises the following steps:
The first step, borehole makes anchor, and fixing anchor bar is squeezed into rock side slope;
Second step, prepares concrete precast element and offers screwed hole, fixing anchor bar tail end and recoverable anchor rod is screwed by screw thread and enters anchor hole until fixing anchor bar contacts with recoverable anchor rod;
3rd step, sheathed PVC sleeve pipe on recoverable anchor rod, in the fixedly embedded concrete precast element in one end of PVC sleeve pipe;
4th step, prepares concrete fixed block, and concrete fixed block is arranged at the tail end of recoverable anchor rod, in the fixedly embedded concrete fixed block of the other end of PVC sleeve pipe;
5th step, carries out grouting anchoring, is in the milk to concrete fixed block.
2. reinforce the mounting method of the recoverable anchor rod system of rock side slope joint plane according to claim 1, it is characterized in that, described concrete precast element is positioned at joint plane.
3. reinforce the mounting method of the recoverable anchor rod system of rock side slope joint plane according to claim 2, it is characterized in that, concrete fixed block and recoverable anchor rod are fixed by lock nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136969.7A CN103233470B (en) | 2013-04-18 | 2013-04-18 | Recyclable anchor rod system for reinforcing joint surfaces of rocky slopes and mounting method of recyclable anchor rod system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136969.7A CN103233470B (en) | 2013-04-18 | 2013-04-18 | Recyclable anchor rod system for reinforcing joint surfaces of rocky slopes and mounting method of recyclable anchor rod system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103233470A CN103233470A (en) | 2013-08-07 |
| CN103233470B true CN103233470B (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310136969.7A Expired - Fee Related CN103233470B (en) | 2013-04-18 | 2013-04-18 | Recyclable anchor rod system for reinforcing joint surfaces of rocky slopes and mounting method of recyclable anchor rod system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103233470B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993613B (en) * | 2014-06-10 | 2015-10-21 | 山东大学 | A kind of method that subgrade retaining wall anchorage body is laid |
| CN111398063B (en) * | 2020-03-31 | 2021-04-27 | 中国地质大学（武汉） | Axial force meter-based prediction method for shear load-shear displacement curve of anchoring joint surface |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3026759B2 (en) * | 1996-08-24 | 2000-03-27 | 建設基礎エンジニアリング株式会社 | Slope stabilization method |
| CN201334916Y (en) * | 2008-12-31 | 2009-10-28 | 中国矿业大学 | Recoverable anchor rod with high-strength prestressing force |
| CN101899837A (en) * | 2010-06-23 | 2010-12-01 | 武汉大学 | Active anti-shear concrete supporting structure for reinforcing deep sliding surfaces of rock slopes |
| CN201924356U (en) * | 2010-12-31 | 2011-08-10 | 杭州图强工程材料有限公司 | Detachable anchor rod |
| CN102605780B (en) * | 2012-04-17 | 2015-01-28 | 周治国 | Recyclable anchor rod for foundation pit support and construction method thereof |
| CN202866841U (en) * | 2012-09-12 | 2013-04-10 | 山东科技大学 | Pull and press coupling type high, strong and big deformation anchor rod |
-
2013
- 2013-04-18 CN CN201310136969.7A patent/CN103233470B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN103233470A (en) | 2013-08-07 |
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Granted publication date: 20150304 Termination date: 20190418 |
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| CF01 | Termination of patent right due to non-payment of annual fee |