Raft anti-floating anchor rod structure with water stop ring

Abstract

The utility model relates to civil engineering technical field especially relates to a raft anti -floating anchor rod structure of having water stop ring in a sleeve, including raft main part and setting in the anchor rod main muscle in underground rock bed, the raft main part is sequentially provided with gluten layer, concrete layer and waterproof layer from top to bottom, the gluten layer is composed by the superposition of staggered distribution upper layer reinforcement and lower layer reinforcement, be provided with the anchor section on the anchor rod main muscle, pull structural member, the utility model makes full use of the anchor rod main muscle that originally only acts as the building anti -floating effect, utilizes the anchor plate installed on its top to replace the temporary support component of the gluten layer on the raft main body, need not set up the special horse stool muscle, simplifies the technology, saves the cost, installs the anchor plate after while not using increasing a section of short anchor muscle on the basis of the original anchor rod main muscle, also need not carrying out the bending operation of the anti -floating anchor rod main muscle, effectively reduced the construction procedure of the anti -floating anchor rod main muscle, greatly improved the construction efficiency, reduced the construction period.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, and in particular to a raft anti-buoyancy anchor structure with a water-stop ring. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] Raft foundations have high rigidity, strong overall structure, and good seismic resistance, while anti-buoyancy anchors have high pull-out bearing capacity, are economical and reliable, and are easy to construct. Therefore, the raft foundation + anti-buoyancy anchor foundation is currently widely used in housing construction projects.

[0004] However, this type of foundation also has many drawbacks. First, during construction, a large number of temporary support components, such as steel bar supports, steel pipe supports, and channel steel supports, need to be installed for the upper steel bars. These temporary support components will be cast into the structure along with the steel bars, resulting in a large waste of materials. Second, the anti-buoyancy anchor rods need to be bent at specific locations to increase the anchoring force in the raft slab. Generally, the construction method of "straight anchor plus horizontal bent anchor" is adopted, which not only increases the workload on site, but also the bent steel bars will obstruct the passage of mechanical equipment and cannot provide a basic flat working environment. In addition, because the anti-buoyancy anchor rods penetrate the waterproof layer of the bottom slab, there is a significant risk of leakage at the corresponding locations, causing groundwater to seep upward along the anchor rods. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings by providing a raft anti-buoyancy anchor structure with a water-stop ring.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a raft slab anti-buoyancy anchor structure with a water-stop ring, comprising a raft slab body and anchor main bars anchored in underground rock strata and connected to the raft slab body. The raft slab body is provided with a top reinforcement layer, a concrete layer and a waterproof layer from top to bottom. The top reinforcement layer is composed of upper and lower reinforcement bars stacked in an alternating manner. The anchor main bars are provided with an anchoring section for anchoring into the raft slab body. A tie member is provided in the anchoring section to tie the main reinforcement of the anchor rod anchored in the underground rock stratum to the raft slab body and to provide temporary support for the joint between the upper and lower reinforcement at the corresponding positions.

[0007] Furthermore, the height of the rib layer is determined according to the construction design drawings, and corresponding markings are made on the main reinforcement of the anchor rod.

[0008] Furthermore, the anchoring section is provided with external threads, and the tension member includes a water-stopping collar that is fitted at the external threads and used to prevent groundwater from seeping upward along the main reinforcement of the anchor rod, and an anchor plate that is located on the upper side of the water-stopping collar and connected to the external threads. The water-stop collar and the anchor plate are rotated sequentially in the anchoring section, and the anchor plate is adjusted and moved to the corresponding mark on the main reinforcement of the anchor rod, and the lower layer of reinforcement is overlapped.

[0009] Furthermore, the top surface of the anchor plate abuts against the lower layer of reinforcing bars.

[0010] Furthermore, the top surface of the water-stop collar is in close contact with the bottom surface of the anchor plate.

[0011] Furthermore, the external structure of the water-stop collar is a frustum shape, larger at the top and smaller at the bottom.

[0012] Furthermore, the water-stop collar and the anchor plate are provided with internal threads through which the corresponding anchoring section passes.

[0013] The beneficial effects of this utility model are reflected in: This invention, through the design of the tension structure, fully utilizes the main reinforcement of the anti-buoyancy anchor rod, which was originally only used for anti-buoyancy in buildings. An anchor plate installed above it replaces the temporary support component of the reinforcement layer on the raft slab, eliminating the need for dedicated stirrups, simplifying the process, and saving costs. Furthermore, after installing the anchor plate, there is no need to add a short anchor bar to the original main anti-buoyancy anchor rod, nor is it necessary to bend the main anti-buoyancy anchor rod. This effectively reduces the construction steps for the main anti-buoyancy anchor rod, greatly improving construction efficiency and shortening the construction period. Additionally, the water-stop ring installed simultaneously with the anchor plate enhances its anti-leakage capability, thereby improving the structure's impermeability. Attached Figure Description

[0014] Figure 1 This is a plan view of the overall structure of an embodiment of the present invention.

[0015] In the picture: 1. Anchor plate; 2. Water-stop ring; 3. Main reinforcement of anchor rod; 4. Concrete layer; 5. Waterproof layer; 6. Lower layer reinforcement; 7. Upper layer reinforcement. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0017] Please see Figure 1 This utility model discloses a raft slab anti-buoyancy anchor structure with a water-stop ring, including a raft slab body and anchor main reinforcement 3 anchored in underground rock strata and connected to the raft slab body. The raft slab body is provided with a top reinforcement layer, a concrete layer 4 and a waterproof layer 5 from top to bottom. The top reinforcement layer is composed of an upper layer of steel bars 7 and a lower layer of steel bars 6 stacked in an alternating manner. The anchor main reinforcement 3 is provided with an anchoring section for anchoring into the raft slab body. A tie member is provided in the anchoring section to tie the anchor rod main reinforcement 3 anchored in the underground rock stratum to the raft slab body and to provide temporary support for the joint between the upper reinforcement 7 and the lower reinforcement 6 at the corresponding positions.

[0018] In the specific implementation, multiple anchor main bars 3 are evenly arranged in the underground rock strata, and the raft slab body is connected to each anchor main bar 3 above the underground rock strata. The raft slab body is supported by a rib layer and a concrete layer 4 formed by concrete pouring as the overall load-bearing system. Flexible waterproof membrane or waterproof coating is laid on the lower layer of the concrete layer 4 to form a continuous waterproof layer 5 to prevent groundwater from seeping in. Furthermore, by installing tension structural components at the anchoring section integrally formed on the anchor main reinforcement 3, the anchor main reinforcement 3, which originally only served as a structural anti-buoyancy component, can be fully utilized. This eliminates the need for dedicated stirrups, simplifying the process and saving costs. At the same time, it eliminates the need to add a short anchor bar to the original anchor main reinforcement 3, as well as the need to bend the anchor main reinforcement 3, effectively reducing the construction steps of the anchor main reinforcement 3, greatly improving construction efficiency and shortening the construction period.

[0019] In one embodiment, the height of the rib layer is determined according to the construction design drawings, and corresponding markings are made on the anchor main reinforcement 3.

[0020] In practice, in accordance with the design requirements of the drawings, the height of the lower layer of steel reinforcement 6 of the raft slab main body was marked on the anchor main reinforcement 3 with a marker pen, which provided a visual reference for the subsequent construction operation of the raft slab.

[0021] In one embodiment, the anchoring section is provided with an external thread, and the tension member includes a water-stopping collar 2 that is fitted at the external thread and used to prevent groundwater from seeping upward along the anchor rod main reinforcement 3, and an anchor plate 1 that is provided on the upper side of the water-stopping collar 2 and is connected to the external thread. The water-stop collar 2 and the anchor plate 1 are sequentially rotated and combined in the anchoring section, and the anchor plate 1 is adjusted and moved to the corresponding mark on the anchor rod main reinforcement 3, and the lower layer reinforcement 6 is overlapped. In this design, by machining the external thread on the anchoring section and screwing the water-stop collar 2 and the anchor plate 1 in sequence at that location, and then adjusting their height so that the top of the anchor plate 1 is located at the mark made on the anchor rod main reinforcement 3, it is convenient to overlap the lower layer reinforcement 6 on the anchor plate 1. At this time, the anchor plate 1 can replace the temporary support component of the upper reinforcement layer of the raft slab body, and at the same time, it serves as a tie for the anchor rod main reinforcement 3 in the raft slab body, increasing the anchoring force of the anchor rod main reinforcement 3 in the raft slab body. It does not require bending at a specific position, reducing the amount of on-site work and facilitating the passage of mechanical equipment. It also includes a water-stopping ring 2, which can prevent groundwater from seeping upwards along the main reinforcement bar 3 of the anchor rod, thereby enhancing its anti-seepage ability and improving the structure's anti-seepage ability.

[0022] In one embodiment, the top surface of the anchor plate 1 abuts against the lower layer of reinforcing bars 6. This design allows the lower layer of reinforcing bars 6 to be temporarily supported on the anchor plate 1, replacing the original stirrups and avoiding the original temporary support components being cast into the structure along with the top layer of reinforcing bars, thus reducing a significant amount of material waste.

[0023] In one embodiment, the top surface of the water-stop collar 2 is tightly fitted with the bottom surface of the anchor plate 1. This design ensures that the water-stop collar 2 is tightly fitted with the anchor plate 1 by reverse twisting. During the reverse twisting process, the anchor plate 1 needs to be held firmly to prevent it from rotating with the water-stop collar 2, thus ensuring that the anchor plate 1 and the water-stop collar 2 are tightly fitted and preventing groundwater from seeping upwards along the anchor rod main reinforcement 3.

[0024] In one embodiment, the external structure of the water-stop ring 2 is a frustum shape, wider at the top and narrower at the bottom. This design, with its frustum-shaped structure, creates an annular cavity that gradually narrows. High-pressure injection of water-stop grout fills this cavity, completely sealing all the tiny gaps between the anchor rod reinforcement 3 and the concrete, thus forming a waterproof barrier. This, combined with the waterproof layer, prevents groundwater from seeping upwards along the anchor rod reinforcement 3.

[0025] In one embodiment, the water-stop collar 2 and the anchor plate 1 are respectively provided with internal threads on the interior of the corresponding anchoring sections. This design allows the internal threads machined inside the water-stop collar 2 and the anchor plate 1 to mate with the external threads machined on the outer surface of the anchoring section on the main anchor bar 3. The overall operation is convenient, and the construction and installation can be completed simply by tightening, thus improving construction efficiency.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] Additionally, "multiple" refers to two or more.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A raft slab anti-buoyancy anchor structure fitted with a water-stop ring, comprising a raft slab body and anchor main reinforcement bars (3) anchored to underground rock strata and connected to the raft slab body, characterized in that: The raft slab body is provided with a ribbed layer, a concrete layer (4) and a waterproof layer (5) from top to bottom. The ribbed layer is composed of an upper layer of steel bars (7) and a lower layer of steel bars (6) that are stacked in an alternating manner. The anchor rod main bar (3) is provided with an anchoring section for anchoring into the raft slab body. A tie member is provided in the anchoring section to tie the anchor rod main reinforcement (3) anchored in the underground rock layer to the raft body and to temporarily support the joint between the upper reinforcement (7) and the lower reinforcement (6) at the corresponding position.

2. The raft slab anti-buoyancy anchor structure with a water-stop ring as described in claim 1, characterized in that: The height of the rib layer is determined according to the construction design drawings, and corresponding markings are made on the anchor rod main reinforcement (3).

3. The raft slab anti-buoyancy anchor structure with a water-stop ring as described in claim 1, characterized in that: The anchoring section is provided with an external thread, and the tensioning component includes a water-stopping ring (2) which is fitted at the external thread and used to prevent groundwater from seeping upward along the main reinforcement (3) of the anchor rod, and an anchor plate (1) which is provided on the upper side of the water-stopping ring (2) and is connected to the external thread. The water-stop collar (2) and the anchor plate (1) are rotated sequentially in the anchor section, and the anchor plate (1) is adjusted and moved to the corresponding mark on the anchor rod main bar (3) to overlap the lower layer of steel bars (6).

4. The raft slab anti-buoyancy anchor structure with a water-stop ring as described in claim 3, characterized in that: The top surface of the anchor plate (1) abuts against the lower layer of reinforcing bars (6).

5. The raft slab anti-buoyancy anchor structure with a water-stop ring as described in claim 3, characterized in that: The top surface of the water-stop collar (2) is in close contact with the bottom surface of the anchor plate (1).

6. The raft slab anti-buoyancy anchor structure with a water-stop ring as described in claim 3, characterized in that: The external structure of the water-stopping collar (2) is a frustum shape with a larger top and a smaller bottom.

7. The raft slab anti-buoyancy anchor structure with a water-stop ring as described in claim 3, characterized in that: The water-stop collar (2) and the anchor plate (1) are provided with internal threads through which the corresponding anchoring sections pass.

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