CN212898555U - Self-sealing hole high polymer grouting anchor rod - Google Patents
Self-sealing hole high polymer grouting anchor rod Download PDFInfo
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- CN212898555U CN212898555U CN202021515435.7U CN202021515435U CN212898555U CN 212898555 U CN212898555 U CN 212898555U CN 202021515435 U CN202021515435 U CN 202021515435U CN 212898555 U CN212898555 U CN 212898555U
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Abstract
The utility model provides a proclaim oneself hole high polymer slip casting stock, it includes: the device comprises a hollow rod body, a grout stopping sheet, a grout stopping plug and an extrusion structure; the hollow rod body sequentially penetrates through the slurry blocking plug, the extrusion structure and the slurry stopping sheet; the slurry blocking plug is internally provided with an accommodating cavity, and the slurry blocking sheet and the extrusion structure are arranged in the accommodating cavity; the grout stopping sheet is connected with the extrusion structure, the extrusion structure is connected with the grout stopping plug, and the grout stopping sheet can push the extrusion structure to move in the accommodating cavity along the axis direction of the hollow rod body. The self-sealing hole high polymer grouting anchor rod provided by the utility model has the advantages of simple structure, simple construction, clear stress, good hole sealing effect and capability of effectively preventing slurry leakage; the construction process of hole sealing grouting and anchoring grouting separation in the existing high polymer anchoring grouting is combined into one, the high polymer anchoring grouting can be completed in one construction, the integration of hole sealing, grouting and anchoring is realized, the construction process is simplified, the production efficiency is improved, and the anchor rod has good market popularization and practical value.
Description
Technical Field
The utility model relates to an infrastructure reinforcement technical field especially relates to a proclaim oneself hole high polymer slip casting stock.
Background
The geotechnical anchoring technology is an important component of the geotechnical engineering subject, can give full play to the strength of a geotechnical body, improve the stability of the geotechnical body, reduce the self weight of a structural object to the maximum extent, obviously save engineering materials and effectively control the deformation of the geotechnical body by adopting the anchoring technology in the geotechnical engineering. The geotechnical anchoring technology has become one of the most economical and effective methods for improving the stability of the geotechnical body and solving the problem of complex supporting engineering. In selecting the anchoring material, the surrounding rock conditions, the purpose of use, and the like are taken into consideration so that a sufficient anchoring force can be obtained over the anchoring length. The commonly used anchoring materials at present are mortar, cement paste, resin and the like. Although these conventional anchoring materials have found wide application in engineering practice, problems still remain in use. For example, the combination of the concrete and the rod body and the friction force of the rock-soil layer are utilized to prevent the surrounding rock from sliding downwards, so that the anchoring effect is achieved. When the anchor rod is used, the combination body formed by the concrete and the rod body which have the bonding effect can play a role only after being solidified for a long time, and the requirement that landslide emergency treatment strives for seconds cannot be met.
The generation reaction of the high polymer material does not involve water, and the anchor body does not have a dry shrinkage phenomenon. The volume of the high polymer is expanded in the curing process, the solidification time is short, 90 percent of the ultimate strength can be provided in 15 minutes, and the curing is not needed. Therefore, the polymer anchoring and grouting technology based on the non-aqueous reaction type two-component polyurethane material is particularly suitable for supporting soil bodies unsuitable for water, such as expansive soil, collapsible loess and the like, and emergency engineering.
Patent document No. CN103215952A discloses that in the conventional polymer anchoring grouting, a grouting hole needs to be plugged before grouting work, a geotextile bag and a grouting pipe are bound on an anchor rod body to perform hole sealing and grouting so as to prevent leakage of polymer slurry from affecting grouting reinforcement effect during grouting, and then anchoring and grouting are performed. The construction process is relatively more, the quality of hole sealing during hole sealing and grouting directly depends on whether effective anchoring can be realized, and the problem of infirm sealing can also occur.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a from sealing hole high polymer slip casting stock aims at solving the relatively more problem of prior art's stock construction process.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include: the device comprises a hollow rod body, a grout stopping sheet, a grout stopping plug and an extrusion structure;
the hollow rod body sequentially penetrates through the slurry blocking plug, the extrusion structure and the slurry stopping sheet; an accommodating cavity is formed in the slurry blocking plug, and the slurry blocking sheet and the extrusion structure are arranged in the accommodating cavity; the grout stopping sheet is connected with the extrusion structure, the extrusion structure is connected with the grout stopping plug, and the grout stopping sheet can push the extrusion structure to move in the accommodating cavity along the axis direction of the hollow rod body.
Preferably, the crush structure comprises a plurality of linkage sets and collars; the circumference of the lantern ring is provided with a plurality of hinge joints, two adjacent linkage groups are hinged through the lantern ring, and the lantern ring is sleeved on the hollow rod body and is in sliding connection with the hollow rod body.
Preferably, the linkage group comprises a first support column and a second support column, one end of the first support column is hinged to the lantern ring, the other end of the first support column is hinged to the second support column, and the grout stopping sheet can push the first support column, the second support column and the lantern ring to realize a linkage effect.
Preferably, the top end of the first support is provided with a gasket, and the gasket is in contact with the inner wall of the slurry blocking plug.
Preferably, the slurry blocking plug is of a conical structure, and the material of the slurry blocking plug is an elastic material.
Preferably, the self-sealing hole high polymer grouting anchor rod further comprises a fixing frame, and the fixing frame is arranged on two sides of the hollow rod body and connected with the hollow rod body.
Preferably, the self-sealing hole high polymer grouting anchor rod further comprises a telescopic baffle, and the telescopic baffle is connected with the outer side of the grout blocking plug.
Preferably, the end of the hollow rod body is provided with a grouting end.
(III) advantageous effects
The utility model has the advantages that: compared with the prior art, the self-sealing hole high polymer grouting anchor rod provided by the utility model has the advantages of simple structure, reasonable design, simple and convenient construction, clear stress and good hole sealing effect, and can effectively prevent slurry leakage; the existing construction process of separating hole sealing grouting and anchoring grouting in high polymer anchoring grouting is combined into one, the high polymer anchoring grouting can be completed in one-time construction, hole sealing, grouting and anchoring integration is realized, the construction process is simplified, and the production efficiency is improved; the anchor rod brings great convenience to the anchoring and grouting work of high polymers, has good market popularization and practical value, reduces the engineering investment and reduces the economic cost.
Drawings
FIG. 1 is a schematic cross-sectional view of a self-sealing polymer grouting anchor rod provided by the present invention;
FIG. 2 is a schematic overall cross-sectional view of a self-sealing polymer grouting anchor rod during construction;
fig. 3 is a schematic cross-sectional view of the compression mechanism of fig. 1 taken perpendicular to the bolt axis.
[ description of reference ]
1: a hollow rod body; 2: a grout stopping sheet; 3: blocking the slurry; 41: a first support; 42: a collar; 43: a gasket; 44: a second support; 5: an accommodating chamber; 6: a fixed mount; 7: a telescopic baffle; 8: grouting an end; 9: grouting holes; 10: and (6) slurry outlet.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides a from sealing hole high polymer slip casting stock, as shown in figure 1, it includes: the self-sealing hole high polymer grouting anchor rod comprises: the device comprises a hollow rod body 1, a grout stopping sheet 2, a grout stopping plug 3 and an extrusion structure; the hollow rod body 1 sequentially penetrates through the slurry blocking plug 3, the extrusion structure and the slurry stopping sheet 2; the slurry blocking plug 3 is internally provided with an accommodating cavity 5, and the slurry blocking piece 2 and the extrusion structure are arranged in the accommodating cavity 5; only thick liquid piece 2 links to each other with extrusion structure, and extrusion structure links to each other with hindering thick liquid stopper 3, only thick liquid piece 2 can promote extrusion structure and remove in holding chamber 5 along the axis direction of the cavity body of rod 1. The grout stopping sheet 2 is an annular baffle with a circular hole, the inner diameter of the annular baffle is matched with the outer diameter of the hollow rod body 1, the thickness of the annular baffle is 5-6 mm, and the grout stopping sheet 2 is made of hard and inelastic materials such as steel materials.
As shown in fig. 2, the self-sealing polymer grouting anchor rod provided by the utility model has the working principle that the polymer grout reaches the bottom of the drilled hole through the grouting hole 9 of the hollow rod body 1, one end of the extrusion structure is connected with the grout stopping sheet 2, the other end is connected with the grout stopping plug 3, after grouting, the polymer grout fills the hole from bottom to top, and the polymer grout expands to push the grout stopping sheet 2 to move; the grout stopping sheet 2 is pushed to slide by injecting high polymer grout, the extrusion structure extrudes the grout stopping plug 3 outwards through the hinge joint function while the grout stopping sheet 2 drives the extrusion structure to move, so that the grout stopping plug 3 expands outwards and is more tightly attached to the hole wall, the hole sealing function is achieved, and grout leakage can be effectively prevented; meanwhile, the squeezed slurry blocking plug 3 increases the contact pressure with surrounding rocks, the self pullout resistance of the anchor rod is improved, the anchoring section is solidified at last, and rock and soil with expanded and compacted hole walls are fully combined with surrounding rock and soil to form a high polymer anchoring body. The self-sealing hole high polymer grouting anchor rod provided by the utility model has the advantages of simple structure, reasonable design, simple and convenient construction, clear stress, good hole sealing effect and capability of effectively preventing slurry leakage; the existing construction process of separating hole sealing grouting and anchoring grouting in high polymer anchoring grouting is combined into one, the high polymer anchoring grouting can be completed in one-time construction, hole sealing, grouting and anchoring integration is realized, the construction process is simplified, and the production efficiency is improved; the anchor rod brings great convenience to the anchoring and grouting work of high polymers, has good market popularization and practical value, reduces the engineering investment and reduces the economic cost.
As shown in fig. 1 and 3, the crush structure includes a plurality of linkage sets and a collar 42, preferably three linkage sets; the lantern ring 42 is a circular ring structure, a plurality of hinge points are arranged on the circumferential direction of the lantern ring 42, two adjacent linkage groups are hinged through the lantern ring 42, and the lantern ring 42 is sleeved on the hollow rod body 1 and is in sliding connection with the hollow rod body 1. The linkage group comprises a first support column 41 and a second support column 44, one end of the first support column 41 is hinged with the lantern ring 42, the other end of the first support column 41 is hinged with the second support column 44, and the grout stopping sheet 2 can push the first support column 41, the second support column 44 and the lantern ring 42 to realize linkage. After the slip casting, the motion of only thick liquid piece 2 makes the tip of extrusion structure receive the promotion, and the middle part receives the restraint of the movable lantern ring 42 of axial, and the bottom receives the restraint that hinders thick liquid stopper 3 to can realize that the extrusion structure outwards opens and support on hindering thick liquid stopper 3, and then the extrusion hinders thick liquid stopper 3 and outwards expands, make and to receive the thick liquid stopper 3 that hinders after the extrusion and closely laminate with the pore wall more, reach the effect of hole sealing, can effectively prevent to leak thick liquid. The first support column 41 and the second support column 44 are cylindrical steel members having equal length.
Furthermore, the slurry blocking plug 3 is of a conical structure, and the slurry blocking plug 3 is made of an elastic material, so that the periphery of the slurry blocking plug 3 can be tightly attached to the wall of the hole, and the sealing effect is achieved; the choke plug 3 is preferably a rubber material with a certain elasticity.
Furthermore, the top end of the first pillar 41 is provided with a gasket 43, and the gasket 43 is in contact with the inner wall of the slurry blocking plug 3. The gasket 43 is arranged at the tail end of the first support 41 and can be well attached to the inner surface of the grout stop 3, and the gasket 43 is preferably an arc-shaped gasket, so that the contact area can be increased.
As shown in fig. 1, the self-sealing polymer grouting anchor rod further comprises a fixing frame 6, wherein the fixing frame 6 is arranged on two sides of the hollow rod body 1 and connected with the hollow rod body 1. The anchor rod fixing device has the advantages that the fixing frame 6 can play a role in fixing the anchor rod, so that the anchor rod is located in the center of a drilled hole, and grouting is facilitated.
In addition, from the high polymer slip casting stock in sealed hole still includes flexible baffle 7, and flexible baffle 7 is connected with the outside of stopping grout stopper 3. The position of the choke plug 3 is adjusted by arranging the telescopic baffle 7 so as to be suitable for different drilling depths. Wherein, the high polymer thick liquid flows in through the slip casting hole 9 of the cavity body of rod 1, reaches the drilling bottom through grout outlet 10, and the tip of the cavity body of rod 1 is equipped with slip casting end 8, the slip casting of being convenient for.
It should be understood that the above description of the embodiments of the present invention is only for illustrating the technical lines and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but the present invention is not limited to the above specific embodiments. All changes and modifications that come within the scope of the claims are to be embraced within their scope.
Claims (8)
1. The self-sealing hole high polymer grouting anchor rod is characterized by comprising: the device comprises a hollow rod body, a grout stopping sheet, a grout stopping plug and an extrusion structure;
the hollow rod body sequentially penetrates through the slurry blocking plug, the extrusion structure and the slurry stopping sheet; an accommodating cavity is formed in the slurry blocking plug, and the slurry blocking sheet and the extrusion structure are arranged in the accommodating cavity; the grout stopping sheet is connected with the extrusion structure, the extrusion structure is connected with the grout stopping plug, and the grout stopping sheet can push the extrusion structure to move in the accommodating cavity along the axis direction of the hollow rod body.
2. The self-sealing polymer grouting anchor rod of claim 1, wherein: the extrusion structure comprises a plurality of linkage groups and lantern rings; the circumference of the lantern ring is provided with a plurality of hinge joints, two adjacent linkage groups are hinged through the lantern ring, and the lantern ring is sleeved on the hollow rod body and is in sliding connection with the hollow rod body.
3. The self-sealing polymer grouting anchor rod of claim 2, wherein: the linkage group comprises a first supporting column and a second supporting column, one end of the first supporting column is hinged to the lantern ring, the other end of the first supporting column is hinged to the second supporting column, and the grout stopping sheet can push the first supporting column, the second supporting column and the lantern ring to achieve a linkage effect.
4. The self-sealing polymer grouting anchor rod of claim 3, wherein: and a gasket is arranged at the top end of the first support column and is in contact with the inner wall of the slurry blocking plug.
5. The self-sealing polymer grouting bolt of any one of claims 1 to 4, characterized in that: the slurry blocking plug is of a conical structure, and the slurry blocking plug is made of an elastic material.
6. The self-sealing polymer grouting bolt of any one of claims 1 to 4, characterized in that: the self-sealing hole high polymer grouting anchor rod further comprises a fixing frame, and the fixing frame is arranged on two sides of the hollow rod body and connected with the hollow rod body.
7. The self-sealing polymer grouting bolt of any one of claims 1 to 4, characterized in that: the self-sealing hole high polymer grouting anchor rod further comprises a telescopic baffle, and the telescopic baffle is connected with the outer side of the grout blocking plug.
8. The self-sealing polymer grouting bolt of any one of claims 1 to 4, characterized in that: and a grouting end is arranged at the end part of the hollow rod body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021515435.7U CN212898555U (en) | 2020-07-28 | 2020-07-28 | Self-sealing hole high polymer grouting anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021515435.7U CN212898555U (en) | 2020-07-28 | 2020-07-28 | Self-sealing hole high polymer grouting anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898555U true CN212898555U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021515435.7U Active CN212898555U (en) | 2020-07-28 | 2020-07-28 | Self-sealing hole high polymer grouting anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212898555U (en) |
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2020
- 2020-07-28 CN CN202021515435.7U patent/CN212898555U/en active Active
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