CN114592511B - Elastic partition structure for free section and anchoring section - Google Patents
Elastic partition structure for free section and anchoring section Download PDFInfo
- Publication number
- CN114592511B CN114592511B CN202210242855.XA CN202210242855A CN114592511B CN 114592511 B CN114592511 B CN 114592511B CN 202210242855 A CN202210242855 A CN 202210242855A CN 114592511 B CN114592511 B CN 114592511B
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- stop plug
- annular wall
- grout
- slurry
- anchor
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- 238000004873 anchoring Methods 0.000 title claims abstract description 36
- 238000005192 partition Methods 0.000 title claims abstract description 17
- 239000011440 grout Substances 0.000 claims abstract description 80
- 239000002002 slurry Substances 0.000 claims abstract description 64
- 239000002390 adhesive tape Substances 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 229920001875 Ebonite Polymers 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 2
- 239000002985 plastic film Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 239000003292 glue Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 ponding Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to the technical field of anchoring structures, and discloses an elastic partition structure of a free section and an anchoring section, which comprises an anchor hole and a prestressed anchor rod, wherein the free section is sleeved with an elastic shrinkage or expansion grout stop plug, and the inner side wall of the anchor hole is provided with an annular wall; when the pressure in the grout stop plug is larger than a set pressure value, the outer circumference of the grout stop plug is abutted against the annular wall to isolate the anchor holes; when the pressure in the slurry stop plug is smaller than a set pressure value, a grouting interval is arranged between the outer circumference of the slurry stop plug and the annular wall; in the process of grouting in the anchor hole, the pressure in the grout stopping plug is smaller than a set pressure value, the grout has replacement and carrying effects 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, after grouting is finished, the pressure in the grout stopping plug is enabled to be larger than the set pressure value by inflation or water filling, the grout stopping plug can partition the anchor hole, the partition effect is formed on the grout outside the free section and the grout outside the anchor section, and the stress cannot be returned to the free section after the anchor section is stressed.
Description
Technical Field
The invention relates to the technical field of anchoring methods, in particular to an elastic partition structure of a free section and an anchoring section.
Background
In civil engineering, a prestressed anchor rod is generally adopted for anchoring, the prestressed anchor rod is a civil engineering technology with wide application, and is generally composed of an anchoring section and a free section, the outside of the anchoring section is filled with grout, anchoring of the anchoring section is achieved, and when the anchoring section is anchored, the anchoring section is prevented from being stressed and then returns to the free section, and the outside of the free section is ideally free of grout.
When grouting is carried out on the anchor hole, slurry flows upwards from the bottom of the anchor hole, if an isolating device is not arranged between the free section and the anchoring section, the slurry automatically flows to the free section after the anchoring section is filled, so that the free section is also filled with the slurry, and the free section is not free under the action of force.
In the prior art, in order to avoid the occurrence of the above situation, an isolating device needs to be arranged between the free section and the anchoring section, and a slurry stop plug is generally adopted. At present, the slurry stopping plugs are divided into two main types by mechanism: the fixed slurry stop plug is fixed on the periphery of the bottom of the free section, the diameter of the slurry stop plug is slightly smaller than the aperture of the anchor hole, and a gap is formed between the slurry stop plug and the wall of the anchor hole, so that slurry cannot be completely prevented from flowing from the anchor section to the free section; the other type is that an expansion type grout stop plug is sleeved on the periphery of the bottom of the free section, grout or gas is injected into the grout stop plug after the grout stop plug and the prestress anchor rod are placed at a designated position in an anchor hole, so that the grout stop plug is expanded, the expanded grout stop plug is clung to the wall of the anchor hole, a good isolation effect is achieved, and grout can be basically blocked from flowing from the anchor section to the free section.
After the anchor hole is formed, impurities such as ponding, slurry, rock debris, soil particles and the like usually exist in the anchor hole, if a slurry stop plug is not arranged, the slurry has replacement and carrying effects when flowing upwards from the bottom of the anchor hole, and the impurities can be taken away by the slurry, so that the slurry in the anchor hole is pure in quality, high in concentration and good in quality; however, after the grout stop plug is arranged, normal flow of grout and slag carrying are hindered, impurities are not easy to clean and even are not taken away, the quality of the grout outside the anchoring section is reduced, and therefore the performance of the anchoring body is deteriorated.
Disclosure of Invention
The invention aims to provide an elastic partition structure of a free section and an anchoring section, and aims to solve the problem that impurities outside the anchoring section are difficult to remove in the prior art.
The invention is realized in such a way that the elastic partition structure of the free section and the anchoring section comprises an anchor hole and a prestressed anchor rod, wherein the prestressed anchor rod comprises the free section and the anchoring section which are arranged in the anchor hole; the outer periphery of the bottom of the free section is sleeved with an elastically contracted or expanded slurry stop plug, a deformation cavity is arranged in the slurry stop plug, and the deformation cavity synchronously contracts or increases along with the elastic contraction or expansion of the slurry stop plug; the slurry stop plug is annular, the inner circumference of the slurry stop plug is abutted against the outer circumference of the free section, and the outer circumference of the slurry stop plug extends outwards along the radial direction of the free section;
the inner side wall of the anchor hole is provided with an annular wall which is arranged opposite to the outer circumference of the grout stop plug, and the annular wall is arranged in a surrounding manner along the circumference of the anchor hole; when the pressure in the grout stop plug is larger than a set pressure value, the outer ring periphery of the grout stop plug is abutted against the annular wall to isolate the anchor holes; when the pressure in the grout stop plug is smaller than a set pressure value, a grouting interval is arranged between the outer circumference of the grout stop plug and the annular wall.
Further, the grout stop plug is provided with a connector, and the connector is arranged at the top of the grout stop plug; the connector is connected with a conduit which extends upwards to the outside of the anchor hole.
Further, the outer side of the grout stop is provided with an elastic annular wall which is pressed and protrudes outwards or contracts inwards, the elastic annular wall is arranged along the circumferential extension of the grout stop, and the outer side wall of the elastic annular wall forms the outer circumference;
when the pressure in the slurry stop plug is larger than a set pressure value, the elastic annular wall protrudes outwards to elastically deform, and when the pressure in the slurry stop plug is smaller than the set pressure value, the elastic annular wall contracts inwards to elastically deform.
Further, the middle part of the elastic annular wall is bent, a bent edge is formed, and the bent edge extends along the circumferential direction of the slurry stop plug;
when the pressure in the slurry stop plug is larger than a set pressure value, the bending edge moves linearly towards the annular wall and abuts against the annular wall; when the pressure in the slurry stop plug is smaller than a set pressure value, the bending edge moves away from the annular wall in a straight line and is separated from abutting against the annular wall.
Further, the lateral wall of bent edge is provided with the adhesive tape, the adhesive tape is along the circumference of stopping the thick liquid stopper around arranging, be equipped with a plurality of deformation holes in the adhesive tape, a plurality of deformation holes is along the circumference interval arrangement of adhesive tape, the inner in deformation hole is sealed, the outer end in deformation hole runs through the adhesive tape, forms the deformation opening.
Further, the elastic annular wall is provided with two inclined rubber rings which are arranged up and down and are obliquely arranged in opposite directions, and the two inclined rubber rings are butted to form the bent edge.
Further, the inside of slope gum ring is equipped with a plurality of hard films, and a plurality of along the circumference interval arrangement of slope gum ring, the hard film is along the slope direction slope arrangement of slope gum ring.
Further, the hard rubber sheet is provided with an extension end part facing the bent edge, and a space is reserved between the extension end part and the rubber strip.
Further, a fixed cylinder is sleeved in the inner circumference of the slurry stop plug, the inner circumference of the slurry stop plug is fixed on the outer circumference of the fixed cylinder and is in closed arrangement with the outer circumference of the fixed cylinder, a penetrating hole is formed in the fixed cylinder, and the outer circumference of the bottom of the free section penetrates through the penetrating hole and is in fixed closed arrangement with the penetrating hole;
the top and the bottom of the fixed cylinder are respectively extended outwards to form limiting plates, the limiting plates are circumferentially arranged along the circumference of the fixed cylinder, a gap is formed between the periphery of the limiting plates and the inner side wall of the anchor hole, and the gap is larger than the grouting interval;
when the pressure in the slurry stop plug is larger than a set pressure value, the slurry stop plug respectively abuts against the two limiting plates; when the pressure in the slurry stop plug is smaller than a set pressure value, the outer circumference is separated from the abutting joint of the annular wall, and an expansion interval is formed between the slurry stop plug and the two limiting plates.
Further, the limiting plate is provided with a limiting surface facing the slurry stop plug, and the limiting surface is obliquely arranged away from the slurry stop plug along the direction away from the fixed cylinder.
Compared with the prior art, the elastic partition structure of the free section and the anchoring section has the advantages that in the grouting process in the anchor hole, the pressure in the grout stop plug is smaller than a set pressure value, the grout stop plug does not partition the anchor hole, the grout has replacement and carrying effects 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, high in concentration and good in quality, after grouting is finished, the pressure in the grout stop plug is greater than the set pressure value by inflation or water filling, the grout stop plug can partition the anchor hole, the partition effect is formed on the grout outside the free section and the grout outside the anchoring section, and the stress is not returned to the free section after the anchoring section is stressed.
Drawings
FIG. 1 is a schematic front view of an elastic partition structure between a free section and an anchor section provided by the 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. 2;
fig. 4 is a schematic sectional view of a fixing barrel and a limiting plate provided by the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below 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 is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-4, a preferred embodiment of the present invention is provided.
The elastic partition structure of the free section and the anchoring section comprises an anchor hole 100 and a prestressed anchor rod, wherein the prestressed anchor rod comprises the free section 201 and the anchoring section 202 which are arranged in the anchor hole 100; the outer periphery of the bottom of the free section 201 is sleeved with an elastically contracted or expanded slurry stop plug 300, a deformation cavity is arranged in the slurry stop plug 300, and the deformation cavity synchronously contracts or increases along with the elastic contraction or expansion of the slurry stop plug 300; the slurry stop plug 300 is annular, the inner circumference 302 of the slurry stop plug 300 is abutted against the outer circumference of the free section 201, and the outer circumference 301 of the slurry stop plug 300 is arranged along the radial outward extension of the free section 201;
the inner side wall of the anchor hole 100 is provided with an annular wall which is arranged opposite to the outer circumference 301 of the grout stop 300 and is circumferentially arranged along the circumferential direction of the anchor hole 100; when the pressure in the grout stop 300 is larger than the set pressure value, the outer circumference 301 of the grout stop 300 is abutted against the annular wall to isolate the anchor hole 100; when the pressure in the stopper 300 is less than the set pressure value, there is a slip casting space between the outer circumference 301 of the stopper 300 and the annular wall.
The above-mentioned free section and anchor section elasticity cut off structure, in the in-process of injecting slurry into anchor eye 100, the pressure in the grout stop plug 300 is less than the settlement pressure value, grout stop plug 300 can not cut off anchor eye 100, the thick liquid has replacement and carry effect when upwards flowing from the bottom of anchor eye 100, impurity can be taken away by thick liquid, make the thick liquid matter in the anchor eye 100 pure, high in concentration, good in quality, after the slip casting finishes, aerify or fill water and make the pressure in the grout stop plug 300 be greater than the settlement pressure value, grout stop plug 300 can cut off anchor eye 100, form the wall effect to the outside thick liquid of free section 201 and the outside thick liquid of anchor section 202, can not pass back stress to free section 201 after anchor section 202 atress.
The slurry forms an anchoring cement segment 101 at the periphery of the anchoring segment 202, and the anchoring cement segment 101 wraps the anchoring segment 202 to anchor with the stratum
In this embodiment, the grout stop 300 is provided with a joint 307, and the joint 307 is arranged at the top of the grout stop 300; the connector 307 is connected with a conduit 306, the conduit 306 extending upwards out of the anchor hole 100.
Thus, during construction, the guide pipe 306 can be connected through auxiliary equipment, so that the grouting plug 300 can be inflated and deflated or filled with water and drained, and the grouting plug 300 can isolate the anchor hole 100 or keep the anchor hole 100 in a normal state.
The outer side of the grout stop 300 is provided with an elastic annular wall which is pressed to bulge outwards or shrink inwards, the elastic annular wall is arranged along the circumferential extension of the grout stop 300, and the outer side wall of the elastic annular wall forms an outer annular circumference 301; in the process of inflating the inside of the grout stop 300, the elastic annular wall gradually protrudes outwards to deform and gradually squeeze the grout in the grouting interval until the outer annular circumference 301 abuts against the annular wall when the pressure in the grout stop 300 is greater than a set pressure value; during the deflation of the stopper 300, the elastic annular wall gradually contracts inwards until the outer circumference 301 is out of abutment with the annular wall when the pressure in the stopper 300 is less than the set pressure value.
By providing the elastic annular wall, when the grout stop 300 is inflated or filled with water, the elastic annular wall is convenient to bulge outwards and deform, and when the grout stop 300 is deflated or discharged, the elastic annular wall is convenient to shrink inwards and deform, and the bulge or shrinkage of the elastic annular wall is realized not only by means of pressure change of gas or water, and the elastic action of the elastic annular wall is matched.
The middle part of the elastic annular wall is in a bending shape, a bending edge 304 is formed, and the bending edge 304 extends along the circumference of the grout stop plug 300, so that the elastic annular wall can automatically bulge outwards to deform after outwards pressure of the elastic annular wall exceeds a set value by forming the bending edge 304, and can automatically shrink to deform after the pressure in the grout stop plug 300 drops to the set value.
When the pressure in the grout stop 300 is larger than a set pressure value, the bending edge 304 moves linearly towards the annular wall until the bending edge 304 abuts against the annular wall of the anchor hole 100; during the deflation or water discharge of the stopper 300, when the pressure in the stopper 300 is less than the set pressure value, the folded edge 304 moves linearly away from the annular wall until the stopper returns to the original position. The bending edge 304 moves linearly in the expansion or contraction process of the stopper 300, so that the certainty of the deformation direction of the stopper 300 can be ensured, and the deformation direction of the stopper 300 can be guided.
In this embodiment, the outer side wall of the bent edge 304 is provided with the adhesive tape 305, the adhesive tape 305 is circumferentially arranged along the circumference of the grout stop 300, by providing the adhesive tape 305, the deformation direction of the grout stop 300 can be better guided, and the adhesive tape 305 can be better abutted against the annular wall of the anchor hole 100.
The adhesive tape 305 is provided with a plurality of deformation holes, the deformation holes are arranged at intervals along the circumferential direction of the adhesive tape 305, the inner ends of the deformation holes are closed, and the outer ends of the deformation holes penetrate through the adhesive tape 305 to form deformation openings. By providing deformation holes, the stopper 300 facilitates deformation of the glue strip 305 during retraction or expansion.
The elastic annular wall is provided with two inclined rubber rings 303 which are arranged up and down and are obliquely arranged in opposite directions, and the two inclined rubber rings 303 are butted to form a bent edge 304. In this way, the two inclined rubber rings 303 take the bending edge 304 as a butt joint edge, and the inner and outer swinging deformation can be realized between the two inclined rubber rings 303.
The inside of the tilting glue loop 303 is provided with a plurality of hard glue sheets, a plurality of hard glue sheets are arranged at intervals along the circumference of the tilting glue loop 303, and the hard glue sheets are obliquely arranged along the tilting direction of the tilting glue loop 303. Through setting up the hard film, and be the interval arrangement between a plurality of hard films, like this, the hard film can not restrict the deformation of slope plastic ring 303 completely, on the contrary, the whole deformation direction of slope plastic ring 303 can be led to the hard film, and in the deformation process, along with inflation or the shrink, the whole shape of slope plastic ring 303 can not warp, guarantees synchronous shrink or increase.
The cardboard has an extension end facing the bent edge 304 with a space between the extension end and the glue strip 305 so that the cardboard does not limit the deformation of the bent edge 304 and the glue strip 305 on the bent edge 304.
The inner circumference 302 of the slurry stop plug 300 is sleeved with a fixed cylinder 400, the inner circumference 302 of the slurry stop plug 300 is fixed on the outer circumference of the fixed cylinder 400 and is in closed arrangement with the outer circumference of the fixed cylinder 400, a penetrating hole 402 is formed in the fixed cylinder 400, and the outer circumference of the bottom of the free section 201 penetrates through the penetrating hole 402 and is in fixed closed arrangement with the penetrating hole 402. By providing the fixing cylinder 400, the assembly and the fixed closure between the inner circumference 302 of the stopper 300 and the free section 201 is facilitated.
The top and the bottom of the fixed cylinder 400 are respectively extended outwards to form a limiting plate 401, the limiting plates 401 are circumferentially arranged along the circumference of the fixed cylinder 400, a gap is formed between the periphery of the limiting plates 401 and the inner side wall of the anchor hole 100, and the gap is larger than the grouting interval;
after the grout stop 300 is inflated or filled with water, when the pressure in the grout stop 300 is greater than a set pressure value, the outer ring circumference 301 abuts against the annular wall of the anchor hole 100, and the grout stop 300 abuts against the two limiting plates 401 respectively; after the stopper 300 is deflated, when the pressure in the stopper 300 is less than the set pressure value, the outer ring 301 is out of abutment with the annular wall, and there is an expansion gap between the stopper 300 and the two limiting plates 401.
When the stopper 300 is expanded, the stopper 300 is guided to expand or contract in the radial direction by limiting the stopper 300 in the up-down direction by the two limiting plates 401, and when the stopper 300 is pressed against the limiting plates 401, the limiting plates 401 can apply a pressing force to the stopper 300 in the opposite direction, so as to further drive the stopper 300 to deform in the radial direction.
The limiting plate 401 has a limiting surface 403 facing the grout stop 300, and along the direction deviating from the fixed cylinder 400, the limiting surface 403 is arranged obliquely deviating from the grout stop 300, so that after the grout stop 300 expands, under the guidance of the limiting surface 403, the outer circumference 301 of the grout stop 300 can be enabled to be abutted on the annular wall of the anchor hole 100 in a more area, and a more blocking effect is achieved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. The elastic partition structure of the free section and the anchoring section is characterized by comprising an anchor hole and a prestressed anchor rod, wherein the prestressed anchor rod comprises the free section and the anchoring section which are arranged in the anchor hole; the outer periphery of the bottom of the free section is sleeved with an elastically contracted or expanded slurry stop plug, a deformation cavity is arranged in the slurry stop plug, and the deformation cavity synchronously contracts or increases along with the elastic contraction or expansion of the slurry stop plug; the slurry stop plug is annular, the inner circumference of the slurry stop plug is abutted against the outer circumference of the free section, and the outer circumference of the slurry stop plug extends outwards along the radial direction of the free section;
the inner side wall of the anchor hole is provided with an annular wall which is arranged opposite to the outer circumference of the grout stop plug, and the annular wall is arranged in a surrounding manner along the circumference of the anchor hole; when the pressure in the grout stop plug is larger than a set pressure value, the outer ring periphery of the grout stop plug is abutted against the annular wall to isolate the anchor holes; when the pressure in the grout stop plug is smaller than a set pressure value, a grouting interval is formed between the outer circumference of the grout stop plug and the annular wall;
the outer side of the slurry stop plug is provided with an elastic annular wall which is pressed to bulge outwards or shrink inwards, the elastic annular wall is arranged along the circumferential extension of the slurry stop plug, and the outer side wall of the elastic annular wall forms the outer circumference;
when the pressure in the slurry stop plug is larger than a set pressure value, the elastic annular wall protrudes outwards to elastically deform, and when the pressure in the slurry stop plug is smaller than the set pressure value, the elastic annular wall contracts inwards to elastically deform;
the middle part of the elastic annular wall is in a bending shape, a bending edge is formed, and the bending edge extends along the circumferential direction of the slurry stop plug;
when the pressure in the slurry stop plug is larger than a set pressure value, the bending edge moves linearly towards the annular wall and abuts against the annular wall; when the pressure in the slurry stop plug is smaller than a set pressure value, the bending edge moves away from the annular wall in a straight line and is separated from abutting against the annular wall;
the outer side wall of the bent edge is provided with an adhesive tape, the adhesive tape is circumferentially arranged along the circumferential direction of the grout stop plug, a plurality of deformation holes are formed in the adhesive tape, the deformation holes are circumferentially arranged at intervals along the adhesive tape, the inner ends of the deformation holes are closed, and the outer ends of the deformation holes penetrate through the adhesive tape to form deformation openings;
the elastic annular wall is provided with two inclined rubber rings which are arranged up and down and are obliquely arranged in opposite directions, and the two inclined rubber rings are butted to form the bent edge;
the inside of slope gum ring is equipped with a plurality of hard rubber pieces, and is a plurality of the hard rubber piece is along the circumference interval arrangement of slope gum ring, the hard rubber piece is along the slope direction slope arrangement of slope gum ring.
2. The elastic partition structure of the free section and the anchoring section according to claim 1, wherein the grout stop is provided with a connector, and the connector is arranged at the top of the grout stop; the connector is connected with a conduit which extends upwards to the outside of the anchor hole.
3. The elastic separation structure of the free section and the anchoring section according to claim 2, wherein the hard plastic sheet has an extension end facing the bent edge, and a space is provided between the extension end and the adhesive tape.
4. A free section and anchor section elastic partition structure according to any one of claims 1 to 3, wherein a fixed cylinder is sleeved in the inner circumference of the slurry stop plug, the inner circumference of the slurry stop plug is fixed on the outer circumference of the fixed cylinder and is in closed arrangement with the outer circumference of the fixed cylinder, a penetrating hole is formed in the fixed cylinder, and the outer circumference of the bottom of the free section penetrates through the penetrating hole and is in fixed closed arrangement with the penetrating hole;
the top and the bottom of the fixed cylinder are respectively extended outwards to form limiting plates, the limiting plates are circumferentially arranged along the circumference of the fixed cylinder, a gap is formed between the periphery of the limiting plates and the inner side wall of the anchor hole, and the gap is larger than the grouting interval;
when the pressure in the slurry stop plug is larger than a set pressure value, the slurry stop plug respectively abuts against the two limiting plates; when the pressure in the slurry stop plug is smaller than a set pressure value, the outer circumference is separated from the abutting joint of the annular wall, and an expansion interval is formed between the slurry stop plug and the two limiting plates.
5. The elastic separation structure of the free section and the anchoring section according to claim 4, wherein the limiting plate is provided with a limiting surface facing the grout stop, and the limiting surface is obliquely arranged away from the grout stop along the direction away from the fixed cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210242855.XA CN114592511B (en) | 2022-03-11 | 2022-03-11 | Elastic partition structure for free section and anchoring section |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210242855.XA CN114592511B (en) | 2022-03-11 | 2022-03-11 | Elastic partition structure for free section and anchoring section |
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| CN114592511A CN114592511A (en) | 2022-06-07 |
| CN114592511B true CN114592511B (en) | 2024-02-20 |
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| CN103587674A (en) * | 2012-08-13 | 2014-02-19 | 中国空间技术研究院 | Airship airbag with shape-control frames |
| CN106869124A (en) * | 2015-12-13 | 2017-06-20 | 青岛星锐机械有限公司 | A kind of air-bag type grout stop ring device in the fields such as construction of road and bridge |
| CN108385679A (en) * | 2018-06-01 | 2018-08-10 | 宁波它山奇境文化旅游发展有限公司 | Reinforce the tension type prestressed anchor and method of soft rock class beded rock mass |
| CN209669880U (en) * | 2019-01-29 | 2019-11-22 | 山东天行新材料科技有限公司 | A kind of grouting device with stop grouting plug |
| CN109882223A (en) * | 2019-03-30 | 2019-06-14 | 付建辉 | The method for carrying out segmenting slip casting using grouting cable anchor |
| KR102149897B1 (en) * | 2020-06-15 | 2020-08-31 | 주식회사 구마에스앤씨(S＆C) | cut slop retaining wall construction structure and the method of constructing cut slop retaining wall |
| CN215408721U (en) * | 2021-08-10 | 2022-01-04 | 淮南东华欧科矿山支护设备有限责任公司 | Anchor rod with sectional type fixing function |
| CN217352453U (en) * | 2022-03-11 | 2022-09-02 | 深圳市工勘岩土集团有限公司 | Partition structure for partitioning free section and anchoring section |
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