CN113529707A - Umbrella-shaped light anchor rod, slope supporting structure and construction method thereof - Google Patents
Umbrella-shaped light anchor rod, slope supporting structure and construction method thereof Download PDFInfo
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- CN113529707A CN113529707A CN202110913830.3A CN202110913830A CN113529707A CN 113529707 A CN113529707 A CN 113529707A CN 202110913830 A CN202110913830 A CN 202110913830A CN 113529707 A CN113529707 A CN 113529707A
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
An umbrella-shaped light anchor rod, a slope supporting structure and a construction method thereof belong to the technical field of slope engineering, and the concrete scheme is as follows: the utility model provides a light-duty stock of umbrella-type, including the body of rod, the anchor head, the joint slides, the bearing plate, the steel strand wires, adjustable anchor slab of a plurality of and a plurality of supporting link, the anchor head is fixed in the bottom of the body of rod, the joint that slides is fixed on the body of rod, the bearing plate is located between joint and the anchor head that slides and sliding connection is on the body of rod, a side end of the adjustable anchor slab of a plurality of all articulates with the joint that slides, a plurality of supporting link rod corresponds the adjustable anchor slab of a plurality of, the one end of every supporting link rod is articulated with the adjustable anchor slab tip of keeping away from the joint that slides, the other end is articulated with the bearing plate, the body of rod is hollow structure, be provided with the through-hole on the lateral wall of body of rod bottom, the steel strand wires sets up in the hollow structure of the body of rod, its one end passes the through-hole and is connected with the bearing plate, the other end stretches out the top of the body of rod. The adjustable anchor plate is opened after the anchor rod is inserted into the slope body, and the supporting effect of the anchor rod is obviously improved.
Description
Technical Field
The invention belongs to the technical field of slope engineering, and particularly relates to an umbrella-shaped light anchor rod, a slope supporting structure and a construction method thereof.
Background
With social progress and economic development, more and more areas relate to the slope engineering problem in engineering activities, and through long-term engineering practice, engineering geologists have formed a relatively perfect theoretical system for the slope engineering, but a novel light slope protection structure system still has wide research prospects.
The anchor bolt support is widely applied to construction of side slopes, deep foundation pits, tunnels and the like as a light support structure, and has the advantages of low cost, simplicity and convenience in operation, flexibility in use, good support effect, small occupied construction clearance and the like. On the other hand, the anchor bolt support belongs to a recessive support, and when the anchor bolt support is used for a soil slope or a rock slope with large deformation, the support effect is difficult to ensure particularly for the deformation and displacement of the deep part of the slope.
Disclosure of Invention
The invention provides an umbrella-shaped light anchor rod for better improving anchoring force and supporting effect.
A second object of the invention is to provide a slope supporting structure.
A third object of the present invention is to provide a method of constructing a side slope supporting structure.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a light-duty stock of umbrella-type, includes the body of rod, anchor head, slides and connects, bearing plate, steel strand wires, the adjustable anchor slab of a plurality of and a plurality of supporting link, the anchor head is fixed in the bottom of the body of rod, slide and connect and slide or fix the setting on the body of rod, the bearing plate is located and slides between joint and the anchor head and sliding connection is on the body of rod, a side end of the adjustable anchor slab of a plurality of all connects with sliding articulated, a plurality of supporting link corresponds the adjustable anchor slab of a plurality of, and the one end of every supporting link is kept away from the tip that slides and connects with the adjustable anchor slab that corresponds and is articulated, and the other end is articulated with the bearing plate, the body of rod is hollow structure, be provided with the through-hole on the lateral wall of body of rod bottom, the steel strand wires sets up in the hollow structure of the body of rod, and steel strand wires one end is passed the through-hole and is connected with the bearing plate, and the other end stretches out the top of the body of rod.
Furthermore, the sliding joint is connected with the rod body in a sliding mode, and a limiting structure is arranged on the rod body between the sliding joint and the bearing plate.
Furthermore, the number of the through holes is a plurality of, the through holes are arranged on the same horizontal plane, one end of each steel strand is divided into a plurality of strands, and the strands penetrate through the corresponding through holes respectively to be connected with the bearing plates.
The utility model provides a contain light-duty stock of umbrella-type's side slope supporting structure, includes the light-duty stock of a plurality of umbrella-type and the prefabricated lattice beam of a plurality of, the prefabricated lattice beam of a plurality of is laid on the side slope body, the light-duty stock of a plurality of umbrella-type inserts in the side slope body at the crossing point department of prefabricated lattice beam, and the top of every light-duty stock of umbrella-type all fixes it on the side slope body with prefabricated lattice beam through fixation nut.
Further, the side slope supporting structure still includes the concrete layer of spouting just, the concrete layer of spouting just sets up on the surface of side slope body, a plurality of prefabricated lattice beam sets up on the surface on concrete layer of spouting just, the light-duty stock of umbrella-type passes the concrete layer of spouting just and inserts in the side slope body.
Further, the slope supporting structure further comprises a plurality of internal thread pressure-bearing pipes, and the plurality of internal thread pressure-bearing pipes are arranged on the slope body and are respectively in threaded connection with the top ends of the plurality of umbrella-shaped light anchor rods.
Further, the basic unit of the arrangement shape of the plurality of precast lattice beams includes a rectangle, a square, a diamond, an 'M' shape, a 'W' shape, or a triangle.
A construction method of the slope supporting structure comprises the following steps:
firstly, cleaning sundries on a slope body of a side slope, leveling and tamping;
secondly, accurately positioning the position of the umbrella-shaped light anchor rod according to design requirements and adding marks;
thirdly, drilling construction is carried out by a drilling machine according to the position mark of the umbrella-shaped light anchor rod, and reaming construction is carried out at the position corresponding to the adjustable anchor plate and the anchor head of the umbrella-shaped light anchor rod by a reaming device;
inserting the umbrella-shaped light anchor rod into the drilled hole, pulling the steel strand to drive the pull-down bearing plate to open the adjustable anchor plates and the support connecting rods, and then injecting concrete slurry into the drilled hole;
and fifthly, laying the prefabricated lattice beam between two adjacent umbrella-shaped light anchor rods, fixing the top ends of the umbrella-shaped light anchor rods by using fixing nuts, further fixing the prefabricated lattice beam, and finishing the integral construction of the slope support structure.
Further, in the step one, spraying a layer of concrete on the leveled and tamped slope body to form a concrete primary spraying layer.
And further, after grouting is performed into the drill hole, an internal thread pressure bearing pipe is arranged inside the top end of the drill hole to fix the top of the umbrella-shaped light anchor rod.
Compared with the prior art, the invention has the beneficial effects that:
1. the slope supporting structure disclosed by the invention adopts the umbrella-shaped light anchor rod, and the adjustable anchor plate is opened to improve the anchoring force after the anchor rod is inserted into a slope body of the slope, so that the supporting effect of the anchor rod is obviously improved.
2. The slope supporting structure disclosed by the invention adopts the internal thread pressure-bearing pipe and the fixing nut, and has the functions of fixing the umbrella-shaped light anchor rod and connecting and fixing the prefabricated lattice beam, so that the integrity of the supporting structure is obviously improved.
3. The slope supporting structure recorded by the invention is basically a prefabricated component, and the work of grouting, fixing, bolt connection and the like is only needed to be completed on a construction site, so that the construction efficiency is high, and the influence on the environment is small.
The invention is suitable for railway engineering, highway engineering and other types of slope engineering with protection and reinforcement requirements.
Drawings
FIG. 1 is a schematic structural view of an umbrella-shaped light anchor rod when a slip joint is slidably arranged with a rod body;
FIG. 2 is a schematic structural view of an umbrella-shaped light anchor rod when the slip joint is fixedly arranged with the rod body;
FIG. 3 is a schematic cross-sectional view of a side slope support structure according to the present invention;
fig. 4a is a front view of a prefabricated lattice beam, b is a top view of the prefabricated lattice beam;
FIG. 5 is a schematic plan view of a prefabricated lattice beam with squares as basic units in a slope supporting structure;
FIG. 6 is a schematic plan view of a prefabricated lattice beam with rhombuses as basic units in a slope supporting structure;
FIG. 7 is a schematic plan view of a prefabricated lattice beam with W-shaped basic units in a slope supporting structure;
FIG. 8 is a schematic plan view of a prefabricated lattice beam with triangles as basic units in a slope supporting structure;
in the figure, 11, a rod body, 12, an anchor head, 13, a sliding joint, 14, a bearing plate, 15, an adjustable anchor plate, 16, a support connecting rod, 17, a limiting structure, 1, an umbrella-shaped light anchor rod, 2, a prefabricated lattice beam, 3, a slope body, 4, a fixing nut, 5, a concrete primary spraying layer, 6 and an internal thread bearing pipe.
Detailed Description
The invention will now be described in more detail with reference to the accompanying figures 1-8.
Detailed description of the invention
An umbrella-shaped light anchor rod comprises a rod body 11, an anchor head 12, a sliding joint 13, a bearing plate 14, a steel strand, a plurality of adjustable anchor plates 15 and a plurality of supporting connecting rods 16, wherein the anchor head 12 is fixed at the bottom end of the rod body 11, the sliding joint 13 is fixedly arranged on the rod body 11, the bearing plate 14 is positioned between the sliding joint 13 and the anchor head 12 and is connected on the rod body 11 in a sliding manner, one side end part of each adjustable anchor plate 15 is hinged with the sliding joint 13, the plurality of supporting connecting rods 16 correspond to the plurality of adjustable anchor plates 15, one end of each supporting connecting rod 16 is hinged with the end part of the corresponding adjustable anchor plate 15 far away from the sliding joint 13, the other end of each supporting connecting rod is hinged with the bearing plate 14, the rod body 11 is of a hollow structure, a through hole is formed in the side wall at the bottom end of the rod body 11, the steel strand is arranged in the hollow structure of the rod body 11, one end of the steel strand penetrates through hole from the inside of the rod body 11 to be connected with the bearing plate 14 outside the rod body 11, the other end extends out of the top end of the rod body 11.
Furthermore, a rubber cushion layer is arranged at the joint of the rod body 11 and the anchor head 12, and plays a certain limiting role.
Furthermore, the number of the through holes is a plurality, and the through holes are arranged on the same horizontal plane; the bottom end of the steel strand is divided into a plurality of strands which respectively penetrate through the corresponding through holes to be connected with the bearing plate 14. Preferably, the number of the through holes is four, the through holes are uniformly distributed around the bearing plate 14, the bottom of the steel strand can be divided into four strands, and the four strands respectively penetrate through the four corresponding through holes to be connected with the periphery of the bearing plate 14.
Detailed description of the invention
An umbrella-shaped light anchor rod comprises a rod body 11, an anchor head 12, a sliding joint 13, a bearing plate 14, a steel strand, a plurality of adjustable anchor plates 15 and a plurality of supporting connecting rods 16, wherein the anchor head 12 is fixed at the bottom end of the rod body 11, the sliding joint 13 is arranged on the rod body 11 in a sliding manner, the bearing plate 14 is positioned between the sliding joint 13 and the anchor head 12 and is connected onto the rod body 11 in a sliding manner, a limiting structure 17 is fixedly arranged on the rod body 11 between the sliding joint 13 and the bearing plate 14, one side end part of each adjustable anchor plate 15 is hinged with the sliding joint 13, the plurality of supporting connecting rods 16 correspond to the plurality of adjustable anchor plates 15, one end of each supporting connecting rod 16 is hinged with the end part of the corresponding adjustable anchor plate 15 far away from the sliding joint 13, the other end of each supporting connecting rod is hinged with the bearing plate 14, the rod body 11 is of a hollow structure, and a through hole is arranged on the side wall of the bottom end of the rod body 11, the steel strand wires set up in the hollow structure of the body of rod 11, and steel strand wires one end is passed from the body of rod 11 inside and is passed the through-hole and be connected with the bearing plate 14 in the body of rod 11 outside, and the other end stretches out the top of the body of rod 11.
Preferably, the limiting structure 17 is a flange block.
Furthermore, a rubber cushion layer is arranged at the joint of the rod body 11 and the anchor head 12, and plays a certain limiting role.
Furthermore, the number of the through holes is a plurality, and the through holes are arranged on the same horizontal plane; the bottom end of the steel strand is divided into a plurality of strands which respectively penetrate through the corresponding through holes to be connected with the bearing plate 14. Preferably, the number of the through holes is four, the through holes are uniformly distributed around the bearing plate 14, the bottom of the steel strand can be divided into four strands, and the four strands respectively penetrate through the four corresponding through holes to be connected with the periphery of the bearing plate 14.
Detailed description of the invention
The utility model provides a contain embodiment mode one the side slope supporting construction of light-duty stock of umbrella-type, includes a plurality of light-duty stock of umbrella-type 1 and a plurality of prefabricated lattice beam 2, a plurality of prefabricated lattice beam 2 is laid on side slope body 3, a plurality of light-duty stock of umbrella-type 1 inserts side slope body 3 in the crossing point department of prefabricated lattice beam 2, and every light-duty stock of umbrella-type 1's top all fixes it on side slope body 3 with prefabricated lattice beam 2 through fixation nut 4.
Further, the side slope supporting structure further comprises a concrete primary spraying layer 5, the concrete primary spraying layer 5 is arranged on the surface of the side slope body 3, the prefabricated lattice girders 2 are arranged on the surface of the concrete primary spraying layer 5, and the umbrella-shaped light anchor rods 1 penetrate through the concrete primary spraying layer 5 and are inserted into the side slope body 3.
Further, the slope supporting structure still includes a plurality of internal thread pressure-bearing pipe 6, a plurality of internal thread pressure-bearing pipe 6 all is fixed to be set up in side slope body 3 to respectively with the top threaded connection of a plurality of umbrella-type light-duty stock 1, its effect is fixed on side slope body 3 with the top of umbrella-type light-duty stock 1, prefabricated lattice beam 2 is fixed in between fixation nut 4 and the internal thread pressure-bearing pipe 6.
Further, the basic unit of the layout shape of the plurality of prefabricated lattice beams 2 includes a rectangle, a square, a diamond, an 'M' shape, a 'W' shape, or a triangle.
And the top of the rod body 11 is provided with two external threads which are respectively in threaded connection with the fixing nut 4 and the internal thread pressure-bearing pipe 6. One side of the fixing nut 4 in contact with the prefabricated lattice beam 2 and one side of the internal thread pressure-bearing pipe 6 in contact with the prefabricated lattice beam 2 are both provided with a layer of rubber cushion layer, so that the friction force of the contact surface is increased.
The slope supporting structure of the embodiment can obviously enhance the stability of the slope and has the advantages of light weight, environmental protection and the like.
Detailed description of the invention
A construction method of a side slope support structure according to a second embodiment includes the steps of:
firstly, cleaning sundries on a slope body 3 of a side slope, leveling and tamping;
secondly, accurately positioning the position of the umbrella-shaped light anchor rod 1 according to design requirements and adding marks;
thirdly, drilling construction is carried out by a drilling machine according to the position mark of the umbrella-shaped light anchor rod 1, and reaming construction is carried out on the position, corresponding to the anchor head 12, of the adjustable anchor plate 15 of the umbrella-shaped light anchor rod 1 by a reaming device;
step four, inserting the umbrella-shaped light anchor rod 1 into a drilled hole, wherein the adjustable anchor plates 15 and the supporting connecting rods 16 are in a closed state, pulling steel stranded wires positioned at the top end of the rod body 11, pulling the bearing plates 14 to move towards one end of the anchor head 12 on the rod body 11 by the steel stranded wires, further enabling the adjustable anchor plates 15 and the supporting connecting rods 16 to rotate, expanding the adjustable anchor rods 15 and the supporting connecting rods 16, and injecting concrete slurry into the drilled hole;
fifthly, laying a prefabricated lattice beam 2 between two adjacent umbrella-shaped light anchor rods 1, fixing the top ends of the umbrella-shaped light anchor rods 1 by using fixing nuts 4, and further fixing the prefabricated lattice beam 2; and finishing the integral construction of the supporting structure.
Further, in the first step, a layer of concrete is sprayed on the leveled and tamped slope body 3 to form a concrete primary spraying layer 5.
Further, in the fourth step, the umbrella-shaped light anchor rod 1 is inserted into the drilled hole, and the axial line coincidence of the umbrella-shaped light anchor rod 1 and the drilled hole is ensured as much as possible.
Further, in the fourth step, after grouting is performed into the drill hole, an internal thread pressure bearing pipe 6 is arranged inside the top end of the drill hole and used for fixing the top of the umbrella-shaped light anchor rod 1, and meanwhile, the coaxiality of the umbrella-shaped light anchor rod and the drill hole is guaranteed.
And further, in the fifth step, after the whole construction of the side slope supporting structure is finished, grass seeds and nutrient solution are sprayed to the slope surface.
According to the concrete embodiment, the slope supporting structure with excellent integrity is formed by shooting the umbrella-shaped light anchor rods 1 and connecting and fixing the prefabricated lattice beams 2, so that the defects of the traditional anchor rod support are overcome, and the concrete embodiment has the advantages of high construction efficiency, good environmental benefit and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An umbrella-type light anchor rod is characterized in that: comprises a rod body (11), an anchor head (12), a sliding joint (13), a bearing plate (14), a steel strand, a plurality of adjustable anchor plates (15) and a plurality of supporting connecting rods (16), wherein the anchor head (12) is fixed at the bottom end of the rod body (11), the sliding joint (13) is arranged on the rod body (11) in a sliding or fixed mode, the bearing plate (14) is arranged between the sliding joint (13) and the anchor head (12) and is connected on the rod body (11) in a sliding mode, one side end part of each adjustable anchor plate (15) is hinged with the sliding joint (13), the supporting connecting rods (16) correspond to the adjustable anchor plates (15), one end of each supporting connecting rod (16) is hinged with the end part of the corresponding adjustable anchor plate (15) far away from the sliding joint (13), the other end of each supporting connecting rod is hinged with the bearing plate (14), the rod body (11) is of a hollow structure, and a through hole is formed in the side wall of the bottom end of the rod body (11), the steel strand wires are arranged in the hollow structure of the rod body (11), one end of each steel strand wire penetrates through the through hole to be connected with the bearing plate (14), and the other end of each steel strand wire extends out of the top end of the rod body (11).
2. The umbrella light rock bolt of claim 1, characterized in that: the sliding joint (13) is connected with the rod body (11) in a sliding mode, and a limiting structure (17) is arranged on the rod body (11) between the sliding joint (13) and the bearing plate (14).
3. The umbrella light rock bolt of claim 1, characterized in that: the number of the through holes is a plurality of, the through holes are arranged on the same horizontal plane, one end of each steel strand is divided into a plurality of strands, and the strands penetrate through the corresponding through holes respectively to be connected with the bearing plate (14).
4. A slope support structure comprising an umbrella-type light anchor rod according to any one of claims 1 to 3, wherein: including a plurality of light-duty stock of umbrella-type (1) and a plurality of prefabricated lattice beam (2), a plurality of prefabricated lattice beam (2) are laid on the side slope body (3), a plurality of light-duty stock of umbrella-type (1) is in the nodical department of prefabricated lattice beam (2) inserts the side slope body (3), and the top of every light-duty stock of umbrella-type (1) all fixes it on the side slope body (3) with prefabricated lattice beam (2) through fixation nut (4).
5. The side slope support structure of claim 4, wherein: side slope supporting construction still includes concrete and spouts layer (5) just, concrete is spouted layer (5) just and is set up the surface at side slope body (3), a plurality of prefabricated lattice beam (2) set up the surface on concrete spouts layer (5) just, umbrella-type light-duty stock (1) pass concrete and spout layer (5) just and insert in side slope body (3).
6. The side slope support structure of claim 4, wherein: the slope supporting structure further comprises a plurality of internal thread pressure-bearing pipes (6), wherein the internal thread pressure-bearing pipes (6) are all arranged on the slope body (3) and are respectively in threaded connection with the top ends of the umbrella-shaped light anchor rods (1).
7. The side slope support structure of claim 4, wherein: the basic unit of the arrangement shape of the plurality of prefabricated lattice beams (2) comprises a rectangle, a square, a diamond, an 'M' shape, a 'W' shape or a triangle.
8. A method of constructing a slope supporting structure according to any one of claims 4 to 7, comprising the steps of:
firstly, cleaning sundries on a slope body (3) of a side slope, leveling and tamping;
secondly, accurately positioning the position of the umbrella-shaped light anchor rod (1) according to design requirements and adding marks;
thirdly, drilling construction is carried out by a drilling machine according to the position mark of the umbrella-shaped light anchor rod (1), and reaming construction is carried out on the position corresponding to the adjustable anchor plate (15) and the anchor head (12) of the umbrella-shaped light anchor rod (1) by a reaming device;
inserting the umbrella-shaped light anchor rod (1) into the drilled hole, pulling the steel strand to drive the pull-down bearing plate (14) to open the adjustable anchor plates (15) and the support connecting rods (16), and then injecting concrete slurry into the drilled hole;
and fifthly, paving the prefabricated lattice beam (2) between two adjacent umbrella-shaped light anchor rods (1), fixing the top ends of the umbrella-shaped light anchor rods (1) by using fixing nuts (4), further fixing the prefabricated lattice beam (2), and finishing the integral construction of the slope supporting structure.
9. The construction method according to claim 8, wherein: in the first step, a layer of concrete is sprayed on the leveled and tamped side slope body (3) to form a concrete primary spraying layer (5).
10. The construction method according to claim 8, wherein: and in the fourth step, after grouting is performed into the drill hole, an internal thread pressure bearing pipe (6) is arranged inside the top end of the drill hole, and the top of the umbrella-shaped light anchor rod (1) is fixed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110913830.3A CN113529707A (en) | 2021-08-10 | 2021-08-10 | Umbrella-shaped light anchor rod, slope supporting structure and construction method thereof |
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| CN202110913830.3A CN113529707A (en) | 2021-08-10 | 2021-08-10 | Umbrella-shaped light anchor rod, slope supporting structure and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837200A (en) * | 2022-04-14 | 2022-08-02 | 华北水利水电大学 | Side slope anchor shotcrete supporting construction |
| CN115341540A (en) * | 2022-09-29 | 2022-11-15 | 中交二航局建筑工程有限公司 | Anchoring device for sand-pulp slope support and construction method thereof |
| CN117071594A (en) * | 2023-10-13 | 2023-11-17 | 四川省建筑科学研究院有限公司 | Foundation pit supporting structure |
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