Rear-mounted rib anti-floating anchor rod

Abstract

The utility model relates to the technical field of anti-floating anchor rods, and particularly discloses a post-reinforcement anti-floating anchor rod which comprises three reinforcing steel bars, the outer sides of the three reinforcing steel bars are sleeved with the same connecting end, a first grouting pipe is slidably connected to the interior of the connecting end, a second grouting pipe is slidably connected to the interior of the connecting end, and the first grouting pipe and the second grouting pipe are sleeved with the same connecting end. The first grouting pipe and the second grouting pipe are both located among the three steel bars, a plurality of supporting components are arranged on the outer sides of the three steel bars, and the movable cover and the first movable insertion plate are lifted through concrete and inserted into soil. And after the concrete forms the anchoring body, the first movable insertion plate is also fixed, so that the first movable insertion plate is stably inserted into the soil, and after the buoyancy of underground water is increased, the friction force between the anchoring body and the soil is increased through the first insertion plate, so that the stability of the anchoring body is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-floating anchor rods, in particular to a post-reinforcement anti-floating anchor rod. Background Art

[0002] Post-reinforced anti-floating anchor is a reinforced concrete foundation treatment method. It is a structural component set up to resist the upward displacement of the building above it. It is related to the height and changes of the groundwater level. The force direction is opposite to that of the compression pile. When the structure is subjected to upward buoyancy, the steel bars or steel strands are subjected to tension to resist the buoyancy.

[0003] In order to avoid the damage to the building structure caused by the buoyancy of groundwater, anti-floating anchor rods are usually used to anchor the raft slab steel bars. The friction between the anchor steel bars of the anti-floating anchor rods and the soil layer around the grouting body is used to resist the buoyancy.

[0004] In the prior art, after the anti-floating anchor is installed, the buoyancy generated by the groundwater will always act on the anti-floating anchor, and anti-floating is achieved only by the friction between the anchor body and the soil layer. As the buoyancy of the groundwater increases, the anchor body may be lifted. Summary of the invention

[0005] The purpose of the utility model is to provide a post-reinforced anti-floating anchor rod, which can insert a first movable plug plate into the soil when the concrete is not solidified, so that after the buoyancy of the groundwater increases, the friction between the anchor body and the soil is increased through the first plug plate, so that the stability of the anchor body is enhanced, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a post-reinforcement anti-floating anchor rod, comprising steel bars, the number of the steel bars is three, the outer sides of the three steel bars are sleeved with a same connecting end, the inner side of the connecting end is slidably connected to a first grouting pipe, the inner side of the connecting end is slidably connected to a second grouting pipe, the first grouting pipe and the second grouting pipe are both located between the three steel bars, and the outer sides of the three steel bars are provided with a plurality of supporting components;

[0007] The supporting component includes a fixed plate welded to the outside of three steel bars, three movable grooves are opened on the surface of the fixed plate, the inside of the three movable grooves are slidably connected with a first movable plug plate, the lower side of the first movable plug plate is fixedly connected with a movable cover, the opposite surfaces of two adjacent movable covers are sleeved on the outside of the same steel bar, and a plurality of support rings are welded together on the outside of the three steel bars, and the lower sides of the three movable covers are sleeved on the upper side of the same support ring.

[0008] Preferably, the shape of the fixed disk is a disc, the shape of the support ring is a disc, and the shape of the support ring is compatible with the shape of the lower side of the three movable covers after being spliced.

[0009] Preferably, the movable groove is opened obliquely upward, and the shape of the movable groove is matched with the shape of the first movable plug plate.

[0010] Preferably, a positioning component is commonly provided at the bottom ends of the three steel bars, and the positioning component comprises a chassis fixedly connected to the bottom ends of the three steel bars, and a push rod is fixedly connected to the lower side of the chassis.

[0011] Preferably, four limiting rods are fixedly connected to the lower side of the chassis, and a bottom cone is overlapped on the chassis after the chassis moves downward, and four limiting grooves are opened on the upper side of the bottom cone, and the four limiting rods are slidably connected in the four limiting grooves respectively.

[0012] Preferably, a positioning groove is provided on the upper side of the bottom cone, and the push rod is clamped in the positioning groove after moving downward, and the shape of the positioning groove is adapted to the shape of the push rod.

[0013] Preferably, four guide grooves are formed on the outer side of the bottom cone, and second movable plug plates are slidably connected in the four guide grooves. After the adjacent side of the four second movable plug plates moves, they slide and squeeze on the outer side of the same push rod.

[0014] Preferably, the shape of the second movable plug plate matches the shape of the guide groove, and the second movable plug plate and the guide groove are arranged in a ring array.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The movable cover and the first movable plug plate are lifted by concrete and inserted into the soil. Since the first movable plug plate is inserted into the soil before the concrete solidifies, the first movable plug plate will also be fixed after the concrete forms an anchor body, so that the first movable plug plate will be stably inserted into the soil, so that after the buoyancy of the groundwater increases, the friction between the anchor body and the soil is increased through the first plug plate, so that the stability of the anchor body is enhanced;

[0017] 2. The four second plug rods are pushed by the push rod so that the second movable plug rods are inserted into the soil. Since the bottom cone is locked by the four second movable plug plates, the stability under the steel bar is improved. When the buoyancy of the groundwater increases, the friction between the bottom cone and the soil will also increase, so that the anti-floating performance of the anchor body is further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 It is a schematic diagram of a half-section structure of the utility model;

[0021] Figure 3 It is a half-section structural schematic diagram of the fixed disk of the utility model;

[0022] Figure 4 It is a schematic diagram of a half-section structure of the bottom cone of the utility model;

[0023] Figure 5 It is a schematic diagram of the half-section structure of the guide groove of the utility model.

[0024] Description of reference numerals:

[0025] 1. Steel bar; 2. Connection end; 3. First grouting pipe; 4. Second grouting pipe; 5. Support component; 51. Fixed plate; 52. Movable groove; 53. First movable plug plate; 54. Movable cover; 55. Support ring; 5. Positioning component; 61. Chassis; 62. Push rod; 63. Limit rod; 64. Limit groove; 65. Bottom cone; 66. Positioning groove; 67. Second movable plug plate; 68. Guide groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides a technical solution:

[0028] See also Figures 1 to 5A post-reinforcement anti-floating anchor rod comprises a steel bar 1, the number of the steel bars 1 is three, the outer sides of the three steel bars 1 are sleeved with a same connecting end 2, the inner side of the connecting end 2 is slidably connected with a first grouting pipe 3, the inner side of the connecting end 2 is slidably connected with a second grouting pipe 4, the first grouting pipe 3 and the second grouting pipe 4 are both located between the three steel bars 1, and a plurality of supporting components are arranged on the outer sides of the three steel bars 1;

[0029] The supporting component includes a fixed plate 51 welded to the outside of the three steel bars 1, and three movable grooves 52 are opened on the surface of the fixed plate 51. The inside of the three movable grooves 52 is slidably connected with a first movable plug plate 53, and the lower side of the first movable plug plate 53 is fixedly connected with a movable cover 54. The opposite surfaces of two adjacent movable covers 54 are sleeved on the outside of the same steel bar 1. A plurality of support rings 55 are welded together on the outside of the three steel bars 1, and the lower sides of the three movable covers 54 are sleeved on the upper side of the same support ring 55.

[0030] The shape of the fixed plate 51 is a disc, the shape of the support ring 55 is a disc, and the shape of the support ring 55 is matched with the shape of the lower side of the three movable covers 54 after being spliced.

[0031] The movable groove 52 is opened obliquely upward, and the shape of the movable groove 52 is matched with the shape of the first movable plug plate 53 .

[0032] By adopting the above technical solution, first, three steel bars 1 are welded through the fixing plate 51, and a supporting ring is welded under each fixing plate 51, and then the upper sides of the three steel bars 1 are connected through the connecting end 2, and the first grouting pipe 3 and the second grouting pipe 4 are inserted into the connecting end 2, so that the first grouting pipe 3 and the second grouting pipe 4 are both between the three steel bars 1, and pass through the fixing plate 51. After the assembly is completed, they are inserted into the pre-opened foundation hole, and the first grouting is performed through the first grouting pipe 3. While the concrete is injected into the foundation hole, the first grouting pipe 3 needs to be gradually pulled upwards so that the first grouting pipe 3 is always on the upper side of the concrete. As the concrete inside the foundation hole increases, the concrete will squeeze the movable cover 54. , so that the first movable plug plate 53 above the movable cover 54 moves upward in an inclined manner in the movable groove 52 on the surface of the fixed plate 51, and is inserted into the soil layer inside the hole. When the concrete is level with the exit of the foundation hole, the first grouting pipe 3 will be completely drawn out. After standing for 4 to 5 hours, high-pressure grouting is performed through the second grouting pipe 4, and the final solidified concrete will form an anchor body. Since the first movable plug plate 53 is inserted into the soil when the concrete is not solidified, the first movable plug plate 53 will also be fixed after the concrete forms the anchor body, so that the first movable plug plate 53 will be stably inserted into the soil, so that after the buoyancy of the groundwater increases, the friction between the anchor body and the soil is increased through the first plug plate, so that the stability of the anchor body is enhanced.

[0033] Specifically, Figure 4 and Figure 5 As shown, a positioning component 5 is commonly provided at the bottom ends of the three steel bars 1 . The positioning component 5 includes a chassis 61 fixedly connected to the bottom ends of the three steel bars 1 , and a push rod 62 is fixedly connected to the lower side of the chassis 61 .

[0034] Four limiting rods 63 are fixedly connected to the lower side of the chassis 61. After the chassis 61 moves downward, a bottom cone 65 is overlapped. Four limiting grooves 64 are opened on the upper side of the bottom cone 65. The four limiting rods 63 are slidably connected in the four limiting grooves 64 respectively.

[0035] A positioning groove 66 is formed on the upper side of the bottom cone 65 . The push rod 62 is clamped in the positioning groove 66 after moving downward. The shape of the positioning groove 66 matches the shape of the push rod 62 .

[0036] Four guide grooves 68 are formed on the outer side of the bottom cone 65 , and second movable insert plates 67 are slidably connected in the four guide grooves 68 . After the four second movable insert plates 67 move close to one side, they slide and squeeze on the outer side of the same push rod 62 .

[0037] The shape of the second movable plug plate 67 matches the shape of the guide groove 68 , and the second movable plug plate 67 and the guide groove 68 are arranged in a ring array.

[0038] By adopting the above technical solution, first, after the bottom cone 65 contacts the soil, the chassis 61 under the steel bar 1 will continue to move downward, so that the limiting rod 63 under the chassis 61 moves inside the limiting groove 64 above the bottom cone 65. When the chassis 61 contacts the bottom cone 65, the push rod 62 under the chassis 61 will enter the positioning groove 66 on the upper side of the bottom cone 65, and squeeze the four second movable plug plates 67 in the four guide grooves 68, so that the four second movable plug plates 67 are all moved outward and inserted into the soil. When the concrete solidifies, the second movable plug plates 67 will also be locked. Since the bottom cone 65 is locked by the four second movable plug plates 67, the stability under the steel bar 1 is improved. When the buoyancy of the groundwater increases, the friction between the bottom cone 65 and the soil will also increase, so that the anti-floating performance of the anchor body is further increased.

[0039] Working principle: three steel bars 1 are welded through the fixed plate 51, and a support ring is welded below, and then the upper sides of the three steel bars 1 are connected through the connecting end 2, and the first grouting pipe 3 and the second grouting pipe 4 are inserted into the connecting end 2. After being inserted into the pre-opened foundation hole, the first grouting is performed through the first grouting pipe 3. As the concrete inside the foundation hole increases, the concrete will squeeze the movable cover 54, so that the first movable plug plate 53 above the movable cover 54 moves upward in an inclined manner in the movable groove 52 on the surface of the fixed plate 51, and is inserted into the soil layer inside the hole. After standing for 4 to 5 hours, the movable cover 54 is placed in the movable groove 52 on the surface of the fixed plate 51. After that, high-pressure grouting is performed through the second grouting pipe 4, and the final solidified concrete will form an anchor body. After the bottom cone 65 contacts the soil, the chassis 61 below the steel bar 1 will move inside the limiting groove 64 above the bottom cone 65 through the limiting rod 63. When the chassis 61 contacts the bottom cone 65, the push rod 62 below the chassis 61 will enter the positioning groove 66 on the upper side of the bottom cone 65, and squeeze the four second movable plug plates 67 in the four guide grooves 68, so that the four second movable plug plates 67 are all moved outward and inserted into the soil. When the concrete solidifies, the second movable plug plates 67 are locked.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A post-reinforcement anti-floating anchor rod, comprising a steel bar (1), wherein the number of the steel bars (1) is three, the outer sides of the three steel bars (1) are sleeved with a same connecting end (2), the interior of the connecting end (2) is slidably connected to a first grouting pipe (3), the interior of the connecting end (2) is slidably connected to a second grouting pipe (4), the first grouting pipe (3) and the second grouting pipe (4) are both located between the three steel bars (1), characterized in that: A plurality of supporting components are provided on the outer sides of the three steel bars (1); The supporting component comprises a fixed plate (51) welded to the outside of three steel bars (1); three movable grooves (52) are provided on the surface of the fixed plate (51); first movable plug plates (53) are slidably connected inside the three movable grooves (52); a movable cover (54) is fixedly connected to the lower side of the first movable plug plate (53); the opposite surfaces of two adjacent movable covers (54) are sleeved on the outside of the same steel bar (1); a plurality of supporting rings (55) are welded to the outside of the three steel bars (1); and the lower sides of the three movable covers (54) are sleeved on the upper side of the same supporting ring (55).

2. The post-reinforcement anti-floating anchor according to claim 1, characterized in that: The shape of the fixed disk (51) is a disk, the shape of the support ring (55) is a disk, and the shape of the support ring (55) is compatible with the shape of the lower side of the three movable covers (54) after splicing.

3. The post-reinforcement anti-floating anchor according to claim 1, characterized in that: The movable groove (52) is opened obliquely upward, and the shape of the movable groove (52) is matched with the shape of the first movable plug plate (53).

4. The post-reinforcement anti-floating anchor according to claim 1, characterized in that: A positioning component (5) is commonly provided at the bottom ends of the three steel bars (1), and the positioning component (5) comprises a chassis (61) fixedly connected to the bottom ends of the three steel bars (1), and a push rod (62) is fixedly connected to the lower side of the chassis (61).

5. The post-reinforcement anti-floating anchor according to claim 4, characterized in that: Four limiting rods (63) are fixedly connected to the lower side of the chassis (61); after the chassis (61) moves downward, a bottom cone (65) is overlapped; four limiting grooves (64) are opened on the upper side of the bottom cone (65); and the four limiting rods (63) are slidably connected in the four limiting grooves (64) respectively.

6. The post-reinforcement anti-floating anchor according to claim 5, characterized in that: A positioning groove (66) is provided on the upper side of the bottom cone (65), and the push rod (62) is clamped in the positioning groove (66) after moving downward, and the shape of the positioning groove (66) is adapted to the shape of the push rod (62).

7. The post-reinforcement anti-floating anchor according to claim 6, characterized in that: Four guide grooves (68) are provided on the outer side of the bottom cone (65), and second movable plug plates (67) are slidably connected in the four guide grooves (68). After the four second movable plug plates (67) move close to one side, they slide and squeeze on the outer side of the same push rod (62).

8. The post-reinforcement anti-floating anchor according to claim 7, characterized in that: The shape of the second movable plug plate (67) is matched to the shape of the guide groove (68), and the second movable plug plate (67) and the guide groove (68) are both arranged in a ring array.

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