Anchor cable stop-grouting plug
By designing an anchor cable slurry stop plug including expansion ring and wire strap, the problem of poor effect of traditional slurry stop method is solved, and higher grouting pressure and orifice sealing are achieved, ensuring the stability of the anchor cable and Carrying capacity.
Patent Information
- Application Number
- CN202420883014.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-26
AI Technical Summary
Traditional anchor cable slurry-resisting methods such as kelp sealing and cement bag sealing have poor effects, resulting in insufficient grouting pressure and slurry leakage.
Design a anchor cable slurry stopper, including a first expansion ring, a second expansion ring and a wire strap, the first expansion ring is arranged outside the second expansion ring, and a steel strand is provided between the two, and the expansion ring is The inner wall is fitted with the steel strand, the wire strap is used for fixing, and the second expansion ring passes through the grouting tube. The expansion ring expands and squeezes the grouting tube when exposed to water to achieve orifice sealing.
The grouting pressure and orifice sealing effect are improved, the stability of the grouting process and no leakage is ensured, the structure is firmly fixed, and the anchor cable bearing capacity is enhanced.
Smart Images
Figure CN222161242U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to an anchor cable grouting plug. Background Art
[0002] In order to improve the bearing capacity of the anchor cable, the design generally requires secondary grouting of the anchor cable. In order to increase the grouting pressure, it is necessary to stop the grouting at the hole mouth. Traditional methods include kelp sealing and cement bag sealing, but the sealing effect is poor. Utility Model Content
[0003] The utility model aims to provide an anchor cable grouting plug, which can increase the grouting pressure, improve the sealing effect of the hole and avoid grouting leakage.
[0004] In order to achieve the above-mentioned purpose, the utility model provides an anchor grouting plug, which is installed on the free section of a steel strand, and the steel strand is inserted into a hole. The utility model comprises a first expansion ring, a second expansion ring and a wire binding tape. The first expansion ring is sleeved outside the second expansion ring, and the steel strand is arranged between the first expansion ring and the second expansion ring. The inner wall of the first expansion ring is fitted with the side wall of the steel strand, the outer wall of the first expansion ring is fitted with the inner wall of the hole, the outer wall of the second expansion ring is fitted with the side wall of the steel strand, a grouting pipe is inserted into the second expansion ring, and the wire binding tapes are provided at both ends of the first expansion ring and the second expansion ring for fixing to the steel strand.
[0005] Furthermore, the first expansion ring and the second expansion ring have the same structure. The first expansion ring includes a first geotextile bag. The first geotextile bag is in a long strip shape. The first geotextile bag has a plurality of storage units spaced apart along the length direction. The storage units are filled with expansive soil. The first geotextile bag is connected end to end to form a ring.
[0006] Furthermore, the outer diameter circumference of the first expansion ring is greater than the inner diameter circumference of the orifice.
[0007] Furthermore, the circumference of the inner diameter of the orifice is l, and the circumference of the outer diameter of the first expansion ring is L, satisfying Ll>100mm.
[0008] Furthermore, the particle size of the expansive soil is less than or equal to 0.075 mm.
[0009] Furthermore, the length of the first expansion ring is greater than or equal to 300 mm.
[0010] Furthermore, the width of the storage unit is greater than or equal to 50 mm.
[0011] Furthermore, the expansion rate of the expansive soil is greater than or equal to 40%.
[0012] Compared with the prior art, the anchor grouting plug of the utility model embodiment has the following beneficial effects: it comprises a first expansion ring, a second expansion ring and a wire binding tape, the inner wall of the first expansion ring fits with the side wall of the steel strand, the outer wall of the second expansion ring fits with the side wall of the steel strand, both ends of the first expansion ring and the second expansion ring are tied and fixed to the steel strand by the wire binding tape, the structure is firmly fixed, and a grouting pipe is passed through the second expansion ring, the first expansion ring and the second expansion ring expand when encountering water, the second expansion ring squeezes and wraps the grouting pipe, the outer wall of the first expansion ring fits with the inner wall of the orifice, the inner wall of the first expansion ring squeezes the steel strand and fits with the outer wall of the second expansion ring at the same time, so as to achieve sealing when grouting the orifice, the structure is stable and reliable, the grouting pressure is increased, and leakage is avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a cross-sectional view of an anchor grout stopper according to an embodiment of the utility model;
[0014] Figure 2 This is a schematic diagram of the installation of the anchor grout stopper of the embodiment of the utility model;
[0015] Figure 3 It is a structural schematic diagram of the first expansion ring of the anchor cable grouting plug according to an embodiment of the utility model.
[0016] In the figure, 1, steel strand; 2, hole; 3, first expansion ring; 31, first geotextile bag; 32, storage unit; 4, second expansion ring; 5, wire tie; 6, grouting pipe. DETAILED DESCRIPTION
[0017] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. used in the present invention to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred devices and elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0019] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.
[0020] like Figure 1 As shown, an anchor grout stopper of a preferred embodiment of the utility model is installed in the free section of a steel strand 1, and the steel strand 1 is inserted into a hole 2, and specifically includes a first expansion ring 3, a second expansion ring 4, and a wire tie 5, wherein, referring to Figure 1 The first expansion ring 3 is sleeved outside the second expansion ring 4, and a steel strand 1 is arranged between the first expansion ring 3 and the second expansion ring 4. Specifically, the inner wall of the first expansion ring 3 fits the side wall of the steel strand 1, the outer wall of the first expansion ring 3 fits the inner wall of the orifice 2, the outer wall of the second expansion ring 4 fits the side wall of the steel strand 1, a grouting pipe 6 is passed through the second expansion ring 4, and wire bands 5 are provided at both ends of the first expansion ring 3 and the second expansion ring 4 for fixing with the steel strand 1. When sealing the orifice 2, the first expansion ring 3 and the second expansion ring 4 expand after absorbing water, and the volume increases. The outer wall of the first expansion ring 3 squeezes the inner wall of the orifice 2, and squeezes the steel strand 1 and the second expansion ring 4 at the same time. Similarly, the outer wall of the second expansion ring 4 squeezes the steel strand 1 and the first expansion ring 3, and the inner wall of the second expansion ring 4 squeezes the grouting pipe 6, so as to achieve sealing when grouting the orifice 2.
[0021] Further, in order to simplify the design of the first expansion ring 3 and the second expansion ring 4, in this embodiment, the first expansion ring 3 and the second expansion ring 4 have the same structure. Figure 3 , the first expansion ring 3 includes a first geotextile bag 31, the first geotextile bag 31 is in the shape of a long strip, and the first geotextile bag 31 is spaced apart along the length direction with a plurality of storage units 32, the storage units 32 are filled with expansive soil, and the first geotextile bag 31 is connected end to end to form a ring. Specifically, when designing, in order to achieve a better sealing effect on the orifice 2, the outer diameter circumference of the first expansion ring 3 is greater than the inner diameter circumference of the orifice 2. Preferably, in this embodiment, the circumference of the inner diameter of the orifice 2 is set to l, and the outer diameter circumference of the first expansion ring 3 is set to L, satisfying Ll>100mm. Furthermore, the smaller the particle size of the expansive soil, the more uniform the force on the first geotextile bag 31 will be when expanding. Therefore, in this embodiment, the particle size of the expansive soil is less than or equal to 0.075mm, and it is generally screened through a sieve with a mesh diameter less than or equal to 0.075mm. At the same time, the expansion rate of the expansive soil is greater than or equal to 40%. In order to prevent the storage unit 32 from bursting, the expansive soil loaded into each storage unit 32 cannot exceed half of the maximum storage volume of the storage unit 32 .
[0022] In some embodiments, in order to improve the sealing effect on the orifice 2, the first expansion ring 3 needs to be sunk into the orifice 2 to a certain depth, and the length of the first expansion ring 3 is greater than or equal to 300 mm.
[0023] The working process of the utility model is as follows: after the first grouting of the hole 2, the steel strand 1 is installed, and then the second expansion ring 4 is installed on the inner side of the steel strand 1, the first expansion ring 3 is sleeved on the outer side of the steel strand 1, and the grouting pipe 6 is inserted into the second expansion ring 4, the first expansion ring 3 and the second expansion ring 4 are tied and fixed at both ends by wire binding 5, and then the second grouting is carried out.
[0024] In summary, the embodiment of the utility model provides an anchor grouting plug, including a first expansion ring 3, a second expansion ring 4 and a wire tie 5. The inner wall of the first expansion ring 3 fits with the side wall of the steel strand 1, and the outer wall of the second expansion ring 4 fits with the side wall of the steel strand 1. Both ends of the first expansion ring 3 and the second expansion ring 4 are tied and fixed to the steel strand 1 by the wire tie 5. The structure is firmly fixed, and a grouting pipe 6 is passed through the second expansion ring 4. The first expansion ring 3 and the second expansion ring 4 expand when exposed to water, and the second expansion ring 4 squeezes and wraps the grouting pipe 6. The outer wall of the first expansion ring 3 fits with the inner wall of the orifice 2. The inner wall of the first expansion ring 3 squeezes the steel strand 1 and fits with the outer wall of the second expansion ring 4 at the same time, so as to achieve sealing when grouting the orifice 2. The structure is stable and reliable, the grouting pressure is increased, and leakage is avoided.
[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. An anchor cable grout stopper installed in the free section of a steel strand, wherein the steel strand is passed through a hole, characterized in that: It includes a first expansion ring, a second expansion ring, and a wire binding band. The first expansion ring is sleeved outside the second expansion ring. The steel strand is arranged between the first expansion ring and the second expansion ring. The inner wall of the first expansion ring fits with the side wall of the steel strand. The outer wall of the first expansion ring fits with the inner wall of the hole. The outer wall of the second expansion ring fits with the side wall of the steel strand. A grouting pipe is passed through the second expansion ring. The wire binding bands are provided at both ends of the first expansion ring and the second expansion ring for fixing to the steel strand.
2. The anchor grout stopper according to claim 1, characterized in that: The first expansion ring and the second expansion ring have the same structure. The first expansion ring includes a first geotextile bag. The first geotextile bag is in a long strip shape. The first geotextile bag has a plurality of storage units spaced apart along the length direction. The storage units are filled with expansive soil. The first geotextile bag is connected end to end to form a ring.
3. The anchor grout stopper according to claim 1, characterized in that: The outer diameter circumference of the first expansion ring is greater than the inner diameter circumference of the orifice.
4. The anchor grout stopper according to claim 3, characterized in that: The inner diameter circumference of the orifice is l, and the outer diameter circumference of the first expansion ring is L, satisfying Ll>100mm.
5. The anchor grout stopper according to claim 2, characterized in that: The particle size of the expansive soil is less than or equal to 0.075 mm.
6. The anchor grout stopper according to claim 1, characterized in that: The length of the first expansion ring is greater than or equal to 300 mm.
7. The anchor grout stopper according to claim 2, characterized in that: The width of the storage unit is greater than or equal to 50 mm.
8. The anchor grout stopper according to claim 2, characterized in that: The expansion rate of the expansive soil is greater than or equal to 40%.