CN217352453U - Partition structure for partitioning free section and anchoring section - Google Patents
Partition structure for partitioning free section and anchoring section Download PDFInfo
- Publication number
- CN217352453U CN217352453U CN202220567452.8U CN202220567452U CN217352453U CN 217352453 U CN217352453 U CN 217352453U CN 202220567452 U CN202220567452 U CN 202220567452U CN 217352453 U CN217352453 U CN 217352453U
- Authority
- CN
- China
- Prior art keywords
- grout
- section
- annular wall
- plug
- free section
- 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.)
- Active
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to the technical field of anchoring structures, and discloses a partition structure for partitioning a free section and an anchoring section, which comprises a grout stopping plug which is sleeved between the free section and the anchoring section and elastically contracts or expands, wherein the grout stopping plug is internally provided with a deformation cavity, the deformation cavity is synchronously reduced or increased along with the elastic contraction or expansion of the grout stopping plug, and the periphery of the outer ring of the grout stopping plug is outwards extended and arranged along the radial direction of the free section; after the prestressed anchor rod is arranged in the anchor hole, in the process of grouting into the anchor hole, the pressure in the grout stopping plug is smaller than a set pressure value, the grout stopping plug cannot separate the anchor hole, the grout has the functions of replacement and carrying when flowing upwards from the bottom of the anchor hole, impurities can be taken away by the grout, the grout in the anchor hole is pure in quality, high in concentration and good in quality, after grouting is finished, air inflation or water filling enables the pressure in the grout stopping plug to be larger than the set pressure value, the grout stopping plug can separate the anchor hole, the grout outside the free section and the grout outside the anchor section form a separating effect, and the stress cannot be transmitted back to the free section after the anchor section is stressed.
Description
Technical Field
The patent of the utility model relates to a technical field of anchor method particularly, relates to a cut off structure for cutting off free section and anchor section.
Background
In civil engineering, a prestressed anchor is generally used for anchoring, the prestressed anchor is a civil engineering technology with wide application, and generally comprises an anchoring section and a free section, the outside of the anchoring section is filled with grout to realize anchoring of the anchoring section, and after the anchoring section is anchored, in order to avoid the anchoring section from being forced and then being transmitted back to the free section, the outside of the free section ideally has no grout.
When the anchor hole is grouted, grout flows upwards from the bottom of the anchor hole, if no isolating device is arranged between the free section and the anchoring section, the grout can automatically flow to the free section after the anchoring section is full of the grout, so that the free section is full of the grout, and the free section is not free when being stressed actually.
In the prior art, in order to avoid the above situation, an isolation device is required to be arranged between the free section and the anchoring section, and a grout stop plug is generally adopted. The existing grout stopping plugs are divided into two main types in terms of mechanism: one type is fixed, the grout stopping plug is fixed on the periphery of the bottom of the free section, the diameter of the grout stopping plug is slightly smaller than the aperture of the anchor hole, and a gap is reserved between the grout stopping plug and the wall of the anchor hole, so that grout cannot be completely prevented from flowing from the anchor section to the free section; the other type is an expansion type, the grout stop plug is sleeved on the periphery of the bottom of the free section and placed at a designated position in the anchor hole together with the prestressed anchor rod, then grout or gas is injected into the grout stop plug to expand the grout stop plug, and the expanded grout stop plug is tightly attached to the hole wall of the anchor hole, so that a good isolation effect is achieved, and grout can be basically prevented from flowing to the free section from the anchoring section.
After the anchor hole is formed, impurities such as accumulated water, slurry, rock debris, soil particles and the like usually exist in the anchor hole, if a grout stop plug is not arranged, the grout has the functions of replacement and carrying when flowing upwards from the bottom of the anchor hole, and the impurities can be taken away by the grout, so that the grout in the anchor hole is pure in quality, high in concentration and good in quality; however, after the grout stop plug is arranged, normal flowing and slag carrying of grout are hindered, impurities are not easy to clean or even not taken away, and the quality of the grout outside the anchoring section is reduced, so that the performance of the anchoring body is deteriorated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cut off structure for cutting off free section and anchor section aims at solving prior art, and the outside impurity of anchor section is difficult to the problem of being clear.
The utility model discloses a realize like this for cut off the wall structure of free section and anchor section, a serial communication port, establish between free section and anchor section and the only thick liquid stopper of elastic contraction or expansion including the cover, only have the deformation chamber in the thick liquid stopper, along with only thick liquid stopper elastic contraction or inflation, the deformation chamber reduces or increases in step, only the outer ring week of thick liquid stopper radially extends outwards along the free section and arranges.
Further, a joint is arranged on the grout stopping plug and is arranged at the top of the grout stopping plug; the connector is connected with a guide pipe, and the guide pipe extends upwards to the outside of the anchor hole.
Further, the outer side of the grout stop plug is provided with an elastic annular wall which is pressed to bulge outwards or contract inwards, the elastic annular wall is arranged along the circumferential extension of the grout stop plug, and the outer side wall of the elastic annular wall forms the outer circumferential periphery;
when pressure in the grout stopping plug is larger than a set pressure value, the elastic annular wall protrudes outwards to deform elastically, and when the pressure in the grout stopping plug is smaller than the set pressure value, the elastic annular wall contracts inwards to deform elastically.
Furthermore, the middle part of the elastic annular wall is bent to form a bent edge, and the bent edge extends along the circumferential direction of the grout stop plug;
when the pressure in the grout stopping plug is larger than a set pressure value, the bending edge moves towards the annular wall in a straight line and abuts against the annular wall; when the pressure in the grout stopping plug is smaller than a set pressure value, the bent edge deviates from the annular wall to move linearly and is separated from the butt joint with the annular wall.
Furthermore, the lateral wall on the limit of buckling is provided with the adhesive tape, the adhesive tape encircles along the circumference of only starching the stopper and arranges, be equipped with a plurality of deformation holes in the adhesive tape, it is a plurality of the deformation hole is arranged along the circumference interval of adhesive tape, the inner in deformation hole is sealed, the adhesive tape is run through to the outer end in deformation hole, forms the deformation opening.
Furthermore, the elastic ring wall is provided with two inclined rubber rings which are arranged up and down and are obliquely arranged in different directions, and the two inclined rubber rings are butted to form the bent edge.
Furthermore, a plurality of hard films are arranged inside the inclined rubber ring, the hard films are arranged at intervals along the circumferential direction of the inclined rubber ring, and the hard films are obliquely arranged along the inclined direction of the inclined rubber ring.
Further, the hard rubber sheet is provided with an extending end part facing the bending edge, and the extending end part is spaced from the rubber sheet.
Compared with the prior art, the utility model provides a cut off structure for cutting off free section and anchor section, after prestressed anchorage pole arranges the anchor eye in, at the in-process of injecting paste in toward the anchor eye, pressure in the grout stopping plug is less than the settlement pressure value, grout stopping plug can not cut off the anchor eye, the thick liquid has replacement and a carry effect when upwards flowing from the bottom of anchor eye, impurity can be taken away by the thick liquid, make the downthehole thick liquid matter of anchor pure, high concentration, high quality, the back is accomplished in the slip casting, aerify or fill water and make the pressure in the grout stopping plug be greater than the settlement pressure value, grout stopping plug can cut off the anchor eye, form the wall effect to the outside thick liquid of free section and the outside thick liquid of anchor section, can not pass back stress to the free section after the anchor section atress.
Drawings
Fig. 1 is a schematic front view of a partition structure for partitioning a free section and an anchoring section provided by the present invention;
FIG. 2 is a schematic front view of a grout stop plug provided by the present invention;
fig. 3 is an enlarged schematic view at a in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-3, the preferred embodiment of the present invention is shown.
The partition structure for partitioning the free section and the anchoring section comprises a grout stop plug 300 which is sleeved between the free section 201 and the anchoring section 202 and elastically contracts or expands, a deformation cavity is arranged in the grout stop plug 300, the deformation cavity is synchronously reduced or increased along with the elastic contraction or expansion of the grout stop plug 300, and the outer circumference of the grout stop plug 300 extends outwards along the radial direction of the free section 201.
According to the partition structure for partitioning the free section and the anchoring section, after the prestressed anchor rod is placed in the anchor hole 100, in the process of grouting into the anchor hole 100, the pressure in the grout stop plug 300 is smaller than a set pressure value, the grout stop plug 300 cannot partition the anchor hole 100, the grout has the functions of displacement and carrying when flowing upwards from the bottom of the anchor hole 100, impurities can be taken away by the grout, so that the grout in the anchor hole 100 is pure in quality, high in concentration and good in quality, after grouting is finished, the grout stop plug 300 is filled with air or water, so that the pressure in the grout stop plug 300 is larger than the set pressure value, the grout stop plug 300 can partition the anchor hole 100, the grout outside the free section 201 and the grout outside the anchoring section 202 form a partition function, and the anchoring section 202 cannot transmit stress back to the free section 201 after being stressed.
The grout forms an anchoring cement section 101 at the periphery of the anchoring section 202, and the anchoring cement section 101 wraps the anchoring section 202 to anchor with the stratum
In this embodiment, the grout stop plug 300 is provided with a joint 307, and the joint 307 is arranged at the top of the grout stop plug 300; the connector is connected to a conduit 306, the conduit 306 extending upwardly out of the anchor eye 100.
In this way, during the construction process, the conduit 306 can be connected through auxiliary equipment, so as to realize the inflation and deflation or the water filling and drainage of the grout stop plug 300, so that the grout stop plug 300 blocks the anchor hole 100, or the normal state of the anchor hole 100 is maintained.
The outer side of the grout stop plug 300 is provided with an elastic annular wall which is pressed to bulge outwards or contract inwards, the elastic annular wall extends along the circumferential direction of the grout stop plug 300, and the outer side wall of the elastic annular wall forms an outer annular periphery 301; in the process of inflating or filling water in the grout stop plug 300, the elastic annular wall gradually protrudes outwards and deforms, grout in the grouting interval is gradually squeezed open, and when the pressure in the grout stop plug 300 is larger than a set pressure value, the outer annular periphery 301 abuts against the annular wall; in the process of air release or water discharge of the grout stop plug 300, the elastic annular wall gradually shrinks inwards until the pressure in the grout stop plug 300 is smaller than the set pressure value, and the outer annular periphery 301 is separated from the abutting joint of the annular wall.
Through the arrangement of the elastic annular wall, when the grout stopping plug 300 is inflated or filled with water, the elastic annular wall is convenient to bulge outwards and deform, and after the grout stopping plug 300 is deflated or drained, the elastic annular wall is convenient to shrink inwards and deform, and the bulge or the shrinkage of the elastic annular wall is realized by the pressure change of gas or water, so that the elastic action of the elastic annular wall is matched.
The middle part of the elastic annular wall is bent to form a bent edge 304, and the bent edge 304 extends along the circumferential direction of the grout stop plug 300, so that by forming the bent edge 304, when the outward pressure on the elastic annular wall exceeds a set value, the elastic annular wall can automatically bulge outwards to deform, and when the pressure in the grout stop plug 300 drops to the set value, the elastic annular wall can automatically contract and deform.
In the process of inflating or filling water in the grout stop plug 300, the elastic annular wall gradually protrudes outwards and deforms, and when the pressure in the grout stop plug 300 is greater than a set pressure value, the bent edge 304 moves linearly towards the annular wall until the bent edge 304 abuts against the annular wall of the anchor hole 100; when the pressure in the slurry stopper 300 is smaller than the set pressure value during the process of air release or water discharge of the slurry stopper 300, the bent edge 304 moves away from the annular wall in a straight line until the original position is restored. The bent sides 304 are linearly moved during the expansion or contraction of the grout plug 300, thereby ensuring the certainty of the deformation direction of the grout plug 300 and guiding the deformation direction of the grout plug 300.
In this embodiment, the lateral wall of the bent edge 304 is provided with the rubber strip 305, the rubber strip 305 is arranged around the circumference of the grout stop plug 300, and by providing the rubber strip 305, the deformation direction of the grout stop plug 300 can be better guided, and the rubber strip 305 can better abut against the annular wall of the anchor hole 100.
A plurality of deformation holes are formed in the rubber strip 305, the deformation holes are arranged at intervals along the circumferential direction of the rubber strip 305, the inner ends of the deformation holes are closed, and the outer ends of the deformation holes penetrate through the rubber strip 305 to form deformation openings. By providing a deformation aperture, the stop plug 300 facilitates deformation of the strip 305 during retraction or expansion.
The elastic ring wall is provided with two inclined rubber rings 303 which are arranged up and down and are obliquely arranged in different directions, and the two inclined rubber rings 303 are butted to form a bent edge 304. Thus, the two inclined rubber rings 303 take the bent edge 304 as a butt edge, and the two inclined rubber rings 303 can swing and deform inside and outside.
The inclined rubber ring 303 is internally provided with a plurality of hard rubber sheets which are arranged at intervals along the circumferential direction of the inclined rubber ring 303, and the hard rubber sheets are obliquely arranged along the inclined direction of the inclined rubber ring 303. Through setting up hard film, and be interval arrangement between a plurality of hard films, like this, hard film can not restrict the deformation of slope rubber ring 303 completely, on the contrary, the hard film can lead the whole direction of deformation of slope rubber ring 303, and at the deformation in-process, along with inflation or retraction, the whole shape of slope rubber ring 303 can not warp, guarantees to shrink in step or increase.
The hard rubber sheet has an extended end portion facing the bending edge 304 with a space between the extended end portion and the rubber strip 305 so that the hard rubber sheet does not restrict the bending edge 304 and the deformation of the rubber strip 305 on the bending edge 304.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The partition structure for partitioning the free section and the anchoring section is characterized by comprising a grout stop plug which is sleeved between the free section and the anchoring section and elastically contracts or expands, wherein a deformation cavity is arranged in the grout stop plug, the deformation cavity is synchronously reduced or increased along with the elastic contraction or expansion of the grout stop plug, and the periphery of the outer ring of the grout stop plug extends outwards along the radial direction of the free section.
2. The partition structure for partitioning the free section from the anchored section according to claim 1, wherein said grout stop plug is provided with a joint, said joint being provided on a top portion of said grout stop plug; the connector is connected with a guide pipe, and the guide pipe extends upwards to the outside of the anchor hole.
3. The separation structure for separating a free section from an anchoring section according to any one of claims 1 to 2, wherein the outer side of the grout stop plug has an elastic annular wall which is outwardly convex or inwardly contracted under pressure, the elastic annular wall is arranged along the circumferential extension of the grout stop plug, and the outer side wall of the elastic annular wall forms the outer annular periphery;
when the pressure in the grout stopping plug is greater than a set pressure value, the elastic annular wall protrudes outwards to deform elastically, and when the pressure in the grout stopping plug is less than the set pressure value, the elastic annular wall contracts inwards to deform elastically.
4. The partitioning structure for partitioning a free segment from an anchored segment as claimed in claim 3, wherein said elastic annular wall has a bent middle portion, and a bent edge is formed on said bent middle portion, and said bent edge is disposed along a circumferential direction of said grout stop plug;
when the pressure in the grout stopping plug is larger than a set pressure value, the bent edge moves towards the annular wall in a straight line and abuts against the annular wall; when the pressure in the grout stopping plug is smaller than a set pressure value, the bent edge deviates from the annular wall to move linearly and is separated from the butt joint with the annular wall.
5. The separation structure for separating the free section from the anchoring section according to claim 4, wherein the outer side wall of the bending edge is provided with a rubber strip, the rubber strip is circumferentially arranged along the circumferential direction of the grout stop plug, a plurality of deformation holes are formed in the rubber strip, the deformation holes are circumferentially arranged at intervals along the circumferential direction of the rubber strip, the inner ends of the deformation holes are closed, and the outer ends of the deformation holes penetrate through the rubber strip to form deformation openings.
6. The separation structure for separating a free section from an anchored section as claimed in claim 5, wherein said elastic ring wall has two inclined rubber rings disposed up and down and obliquely in different directions, and said two inclined rubber rings are butted to form said bent edge.
7. The partitioning structure for partitioning a free section from an anchoring section according to claim 6, wherein said inclined rubber ring is provided inside with a plurality of hard rubber sheets, a plurality of said hard rubber sheets are arranged at intervals along a circumferential direction of the inclined rubber ring, and said hard rubber sheets are arranged obliquely along an oblique direction of the inclined rubber ring.
8. The separation structure for separating a free segment from an anchored segment according to claim 7, wherein said hard rubber sheet has an extended end portion toward the bent edge with a space therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220567452.8U CN217352453U (en) | 2022-03-11 | 2022-03-11 | Partition structure for partitioning free section and anchoring section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220567452.8U CN217352453U (en) | 2022-03-11 | 2022-03-11 | Partition structure for partitioning free section and anchoring section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217352453U true CN217352453U (en) | 2022-09-02 |
Family
ID=83051428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220567452.8U Active CN217352453U (en) | 2022-03-11 | 2022-03-11 | Partition structure for partitioning free section and anchoring section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217352453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592511A (en) * | 2022-03-11 | 2022-06-07 | 深圳市工勘岩土集团有限公司 | Elastic partition structure for free section and anchoring section |
-
2022
- 2022-03-11 CN CN202220567452.8U patent/CN217352453U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592511A (en) * | 2022-03-11 | 2022-06-07 | 深圳市工勘岩土集团有限公司 | Elastic partition structure for free section and anchoring section |
| CN114592511B (en) * | 2022-03-11 | 2024-02-20 | 深圳市工勘岩土集团有限公司 | Elastic partition structure for free section and anchoring section |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217352453U (en) | Partition structure for partitioning free section and anchoring section | |
| JP4588804B1 (en) | Temporary cut-off method, temporary cut-off structure | |
| CN205936654U (en) | A gasbag template for tunnel secondary lining | |
| CN111156032B (en) | Grouting pipe inserted section steel grouting reinforcement existing subway tunnel structure and method | |
| CN112031812B (en) | Drainage positioning grouting pipe piece and construction method thereof | |
| CN109630803B (en) | Pipeline repairing device, system and method | |
| EP2644821A1 (en) | An annular barrier having a flexible connection | |
| CN201620819U (en) | Projection prevention and protection device of packer rubber cylinder | |
| CN211873037U (en) | Support pile with reserved anchor cable hole | |
| CN114592510B (en) | Construction method for elastic partition of free section and anchoring section | |
| CN114592511B (en) | Elastic partition structure for free section and anchoring section | |
| JP4174359B2 (en) | Water stop connection structure between members | |
| CN211849452U (en) | Special gun for cement grouting leaking stoppage | |
| CN213233433U (en) | Integrated bag type enlarged footing anchor rod | |
| CN110761293B (en) | Foundation pit anchor cable orifice device and foundation pit anchor cable orifice construction method | |
| CN2532119Y (en) | Prestress anchorage cable positioning slurry-stop ring | |
| JP2018131843A (en) | Driving injection pipe and method for injecting air | |
| JP2007023522A (en) | Earthquake-proof structure of buried pipe and its manufacturing method | |
| CN219554512U (en) | Sealing connection structure of cable protection tube | |
| CN219219122U (en) | Rear-mounted semi-self-adhesive cross-shaped buried water stop structure | |
| CN216865175U (en) | Composite structure of waist rail and side wall of main structure | |
| CN218563629U (en) | Embedded expansion hole packer for hollow grouting mine anchor cable | |
| CN216238603U (en) | Waterproof plugging structure of waterproof steel pipe is reserved to structural bottom plate | |
| CN114239111A (en) | Auxiliary tunnel plugging structure suitable for hard surrounding rock and calculation method thereof | |
| CN219773014U (en) | Sleeve structure for protecting dewatering well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |