Anti-streaming device for underground diaphragm wall joint

Abstract

The invention discloses an underground diaphragm wall joint anti-streaming device, and relates to the field of underground diaphragm wall joints, the underground diaphragm wall joint anti-streaming device comprises a steel body and a reinforcement cage, the reinforcement cage is located on the inner wall of the steel body and welded, iron sheets are symmetrically welded to the outer side of the steel body, fixing plates are welded to the outer walls of the iron sheets, and abutting blocks are slidably arranged on the inner walls of the fixing plates; a sliding plate matched with the abutting block is arranged on the inner wall of the steel body in a sliding mode. When concrete is irrigated into the steel body, the lateral pressure on the two sides of the steel body is increased along with rising of a concrete pouring surface, so that the iron sheet expands outwards to the groove wall, and a channel formed by a reserved steel bar protection layer at the steel body is blocked; when the device is used, the sliding plates on the inner wall of the steel body can slide towards the two sides under the action of concrete pressure, so that the abutting blocks expand towards the outer side, the overall stability of the steel body is guaranteed in the process, and the overall anti-streaming capacity of the device is further improved.

Description

Technical Field

[0001] The invention relates to the field of ground-to-wall joints, and in particular to a ground-to-wall joint anti-circumference flow device. Background Art

[0002] As the scale of cities continues to expand in three dimensions, the required size of building foundation pits continues to increase and deepen. The underground continuous wall acts as a foundation pit support structure, and its role becomes increasingly prominent. The underground continuous wall, referred to as the ground-connected wall, is a mature underground building structure, which is mainly used in the retaining structure of the foundation pit, the exterior wall of the basement of the building, etc. During the construction of the underground continuous wall, the wall is cast in sections, and the end structures are used to connect the trench sections. The adjacent joints of the underground continuous wall are connected in the form of H-shaped steel joints.

[0003] In the prior art, after the steel cage below the ground-connected wall is formed into a groove, the reserved gap in the protective layer can become a channel for concrete to flow around, causing concrete to bypass the I-beam to the web of the I-beam in the groove to form a bypass concrete, which brings great quality hazards and safety risks to subsequent construction and foundation pit excavation. In addition, if the protruding concrete blocks after the underground continuous wall is poured are not removed, it will affect the lowering of the steel cage of the next ground-connected wall, which is too wasteful of overall manpower and material resources.

[0004] In summary, the gap in the protective layer reserved in the above-mentioned structure during the actual construction process can become a channel for concrete to flow around, which brings great quality hazards and safety risks to the subsequent construction and foundation pit excavation, and will affect the lowering of the next ground-anchored wall steel cage, wasting overall manpower and material resources. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a ground-connected wall joint anti-bypass device to solve the technical problem that the reserved protective layer gap can become a channel for concrete bypass, which brings great quality hazards and safety risks to subsequent construction and foundation pit excavation, and will affect the lowering of the next ground-connected wall steel cage, wasting overall manpower and material resources.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ground-connected wall joint anti-circumference flow device, comprising a steel body and a steel cage, wherein the steel cage is located on the inner wall of the steel body and welded, the outer side of the steel body is symmetrically welded with iron sheets, and the outer wall of the iron sheet is welded with a fixing plate, the inner wall of the fixing plate is slidably provided with an abutment block, and the inner wall of the steel body is slidably provided with a slide plate cooperating with the abutment block.

[0007] By adopting the above technical solution, when irrigating concrete inside, as the pouring concrete surface rises, the lateral pressure on both sides of the steel body increases, causing the iron sheet to expand outward to the groove wall, thereby blocking the channel formed by the reserved steel bar protective layer at the steel body, thereby preventing the occurrence of concrete bypass. When the concrete is poured in, the slide plate on the inner wall of the steel body will slide to both sides under the action of the concrete pressure, thereby achieving the expansion of the abutment block outward and contacting with the groove wall to complete the abutment. In this process, the overall stability of the steel body is guaranteed, and the overall anti-bypass ability of the device is further improved.

[0008] The present invention is further configured such that the outer wall of the iron sheet is integrally formed by a galvanizing process, and the overall thickness of the iron sheet is 0.2 mm to 0.4 mm.

[0009] Preferably, the galvanized iron sheet can effectively prevent corrosion caused by being underground for a long time, further improving the overall service life of the iron sheet. Moreover, its thickness is relatively thin, and it will be subjected to outward pressure during the process of pouring concrete, so that the iron sheet itself will deform.

[0010] The present invention is further configured such that the abutment block itself is made of a flexible material and a rough surface is arranged on the outer side thereof.

[0011] Preferably, the flexible material effectively prevents the abutment block from directly contacting the inner wall and causing wear thereof, and the rough surface increases the sliding friction between the abutment block and the inner wall, further ensuring the stability of the abutment block located on the inner wall.

[0012] The present invention is further configured such that a plug post is provided on one side of the slide plate, and the other end of the plug post penetrates into the fixing plate and is connected to the abutment block.

[0013] Preferably, the sliding plate drives the plug post to move to one side during the sliding process, so that the abutment block slides out of the fixing plate and contacts and abuts against the inner wall thereof.

[0014] The present invention is further configured such that the overall height of the abutment block is the same as the overall height of the steel body.

[0015] As a preferred embodiment, the effect of preventing bypass flow is ensured, so that the deformed iron sheet is in full contact with the inner wall.

[0016] The present invention is further configured such that the inner wall of the fixing plate is smooth and one side thereof is flat.

[0017] Preferably, the smooth setting makes it easier for the abutment block to stably slide out from the inside of the fixed plate, while the flat setting makes it easier for the iron sheet to fully contact the fixed plate, further improving the overall anti-bypass stability of the iron sheet.

[0018] The present invention is further configured such that one end of the iron sheet is fixed to the outer wall of the steel body by welding, and the other end thereof is fixed to the steel cage by binding.

[0019] Preferably, welding is used to fix one end of the iron sheet, thereby preventing the iron sheet from falling off the outer wall of the steel body during the lowering of the steel cage. The bundling arrangement at the other end facilitates the iron sheet to be stably attached to the outer wall of the steel cage during lowering. After the lowering is completed, the staff is required to untie it to facilitate the subsequent anti-bypass work.

[0020] The present invention is further configured such that the slide plate is located outside the steel cage.

[0021] Preferably, when the sliding plate is subjected to the pressure of concrete, the inner wall of the sliding plate will also squeeze the steel cage, thereby further improving the stability of the steel cage located on the inner wall of the steel body.

[0022] The present invention is further configured such that one side of the fixing plate is concavely configured to be used for snapping into the abutment block.

[0023] Preferably, the concave setting facilitates the stable insertion of the abutment block, ensuring that the abutment block will not block the steel cage during its lowering, thereby further improving the stability of the device during the lowering process.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] 1. The present invention welds iron sheets on both sides of the wing plate of the steel body. The iron sheets are arranged along the full length of both sides of the steel body. When the groove is placed under the steel cage, concrete will be irrigated into the inside. As the pouring concrete surface rises, the lateral pressure on both sides of the steel body increases, causing the iron sheets to expand outward to the groove wall, thereby blocking the channel formed by the steel bar protective layer reserved at the steel body, thereby preventing the occurrence of concrete bypass.

[0026] 2. The present invention welds a fixing plate on the outer wall of the iron sheet to achieve stable positioning of the iron sheet through the fixing plate to ensure that it will not fall off during the lowering process. At the same time, an abutment block is slidably arranged on the inner side of the fixing plate. When the concrete is poured after the lowering, the slide plate on the inner wall of the steel body will slide to both sides under the action of the concrete pressure, thereby achieving the abutment block to expand outward and contact with the groove wall to complete the abutment. In this process, the overall stability of the steel body is guaranteed, and the overall anti-bypass flow capability of the device is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front perspective view of the present invention;

[0028] Figure 2 is a side view of the present invention;

[0029] Figure 3 is a side perspective view of the present invention;

[0030] Figure 4 A top view of the present invention;

[0031] Figure 5 For the present invention Figure 1 A is an enlarged view of the middle image.

[0032] Description of reference numerals:

[0033] 1. Steel body; 2. Steel cage; 3. Iron sheet; 4. Abutment block; 5. Fixed plate; 6. Slide plate; 7. Plug column. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] The following describes an embodiment of the present invention based on its overall structure.

[0036] First embodiment:

[0037] See also Figure 1-Figure 5The anti-circumvention device for a ground-connected wall joint shown in the figure comprises a steel body 1, a steel cage 2, an abutment mechanism, an anti-circumvention mechanism and a limiting mechanism. The steel body 1 and the steel cage 2 are welded, and then the iron sheet 3 is welded to the outer wall of the steel body 1, and a fixing plate 5 is also welded to the outer wall of the iron sheet 3. The fixing plate 5 ensures that the iron sheet 3 itself will not fall off during the lowering of the steel cage 2. After the steel cage 2 is lowered, concrete will be poured into the interior. As the concrete pouring surface rises, the lateral pressure on both sides of the steel body 1 increases. Since the outer wall of the iron sheet 3 is an integrated galvanized process, the overall thickness of the iron sheet 3 is 0.3 mm. The galvanized iron sheet 3 can effectively prevent corrosion caused by being underground for a long time, further improving the overall service life of the iron sheet 3. In addition, its overall thickness is relatively thin, and during the pouring of concrete It will be subjected to outward pressure, so that the iron sheet 3 itself will be deformed, causing the iron sheet 3 to expand outward to the groove wall, thereby blocking the channel formed by the reserved steel bar protective layer at the steel body 1, thereby preventing the occurrence of concrete bypass, and the inner wall of the steel body 1 is slidingly provided with a slide plate 6 that cooperates with the abutment block 4, and one side of the slide plate 6 is provided with a plug column 7, and the other end of the plug column 7 passes through the fixed plate 5 and is connected with the abutment block 4. During the sliding of the slide plate 6, the plug column 7 will be driven to move to one side, thereby causing the abutment block 4 to slide out of the fixed plate 5. When the concrete is poured in, the slide plate 6 on the inner wall of the steel body 1 will slide to both sides under the action of the concrete pressure, thereby realizing the expansion of the abutment block 4 outward and contacting with its groove wall to complete the abutment. In this process, the overall stability of the steel body 1 is guaranteed, and the overall anti-bypass ability of the device is further improved.

[0038] In the above embodiments, please refer to Figure 1 and Figure 3 The abutment block 4 itself is made of flexible material, and a rough surface is arranged on its outer side. The flexible material effectively prevents the abutment block 4 from directly contacting the inner wall and causing wear, and the rough surface increases the sliding friction between the abutment block 4 and the inner wall, further ensuring the stability of the abutment block 4 located on the inner wall.

[0039] In the above embodiments, please refer to Figure 4 One side of the fixing plate 5 is concavely arranged to insert the abutment block 4. The concave arrangement facilitates the stable insertion of the abutment block 4, ensuring that the abutment block 4 will not block the steel cage 2 during the lowering process, thereby further improving the stability of the device during the lowering process.

[0040] Second embodiment:

[0041] See also Figure 1The shown ground-connected wall joint anti-circumvention device has an overall structure similar to that of Example 1, wherein one end of the iron sheet 3 is fixed to the outer wall of the steel body 1 by welding, and the other end is fixed to the steel cage 2 by bundling. The welding method facilitates the fixation of one end of the iron sheet 3, preventing the iron sheet 3 from falling off the outer wall of the steel body 1 during the lowering of the steel cage 2, and the bundling arrangement of the other end facilitates the iron sheet 3 to be stably attached to the outer wall of the steel cage 2 during lowering. After the lowering is completed, the staff is required to untie it to facilitate the subsequent anti-circumvention work.

[0042] When the present invention is in specific operation: when in use, by welding the iron sheet 3 to the outer wall of the steel body 1, and then by welding the fixing plate 5 on the outer wall of the iron sheet 3, the iron sheet 3 itself will not fall off under the action of the fixing plate 5 during the lowering process of the steel cage 2. After the steel cage 2 is placed in the groove, concrete will be irrigated into the interior. As the concrete pouring surface rises, the lateral pressure on both sides of the steel body 1 increases, causing the iron sheet 3 to expand outward to the groove wall, thereby blocking the channel formed by the reserved steel bar protective layer at the steel body 1. In addition, abutment blocks 4 are also provided on the fixing plate 5. Under normal conditions, the abutment blocks 4 will not contact the groove wall, thereby facilitating the staff to place the steel cage 2 in the groove. When irrigating concrete, the slide plate 6 on the inner wall of the steel body 1 is squeezed by the concrete, thereby causing the abutment blocks 4 to expand to both sides and contact with the groove wall to complete the abutment. In this process, the overall stability of the steel body 1 is guaranteed, and the overall anti-circumvention flow capability of the device is further improved.

[0043] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A ground-connected wall joint anti-circumference device, comprising a steel body (1) and a steel cage (2), wherein the steel cage (2) is located on the inner wall of the steel body (1) and is welded, and is characterized in that: The outer side of the steel body (1) is symmetrically welded with an iron sheet (3), and the outer wall of the iron sheet (3) is welded with a fixing plate (5), the inner wall of the fixing plate (5) is slidably provided with an abutment block (4), and the inner wall of the steel body (1) is slidably provided with a sliding plate (6) that cooperates with the abutment block (4).

2. A ground-to-wall joint anti-circumference device according to claim 1, characterized in that: The outer wall of the iron sheet (3) is integrally formed by a galvanizing process, and the overall thickness of the iron sheet (3) is 0.2 mm to 0.4 mm.

3. The anti-circumference device for a ground-to-wall joint according to claim 1, characterized in that: The abutment block (4) itself is made of a flexible material, and a rough surface is arranged on its outer side.

4. The anti-circumference device for a ground-to-wall joint according to claim 1, characterized in that: A plug post (7) is provided on one side of the slide plate (6), and the other end of the plug post (7) penetrates into the fixing plate (5) and is connected to the abutment block (4).

5. The ground-to-wall joint anti-circumference device according to claim 1, characterized in that: The overall height of the abutment block (4) is the same as the overall height of the steel body (1).

6. The anti-circumference device for ground-to-wall joint according to claim 1, characterized in that: The inner wall of the fixing plate (5) is arranged to be smooth, and one side thereof is arranged to be flat.

7. The anti-circumference device for a ground-to-wall joint according to claim 1, characterized in that: One end of the iron sheet (3) is fixed to the outer wall of the steel body (1) by welding, and the other end is fixed to the steel cage (2) by binding.

8. The ground-to-wall joint anti-circumference device according to claim 1, characterized in that: The slide plate (6) is located outside the steel cage (2).

9. The ground-to-wall joint anti-circumference device according to claim 1, characterized in that: One side of the fixing plate (5) is arranged in a concave manner and is used for snapping into the abutment block (4).

Images