General rubber joint box for underground continuous wall

Abstract

The present application relates to a kind of general rubber joint box of underground continuous wall, by multiple joint box segments vertical through length direction splicing, including main box, multiple specifications of replaceable side box, the replaceable side box of splicing of both sides of main box.By the combination of main box and different specifications of replaceable side box, the underground continuous wall joint construction of different wall thickness can be adapted.The replaceable side box is simple in structure, easy to assemble and disassemble, low in processing cost, flexible to replace, reusable, reduces the amount of steel used;The general rubber joint box of the present application is interchangeable and universal based on sealing, easy to push up and pull out without damaging the joint, ensuring the efficiency and effectiveness of underground continuous wall joint construction, can be used in multiple projects, reducing cost and increasing efficiency.

Description

Technical Field

[0001] This invention relates to a joint box for diaphragm wall construction, and more particularly to a universal rubber joint box for diaphragm walls. Background Technology

[0002] Patent publication number CN114525777A discloses a self-pushing joint box for rubber steel plate waterstops. It adopts a multi-segment assembly form. Each joint box has multiple pushing devices and rubber waterstop clamping devices arranged from top to bottom. It is suitable for ground wall joint boxes for rubber waterstops, which can increase the interlocking thickness at the joints of adjacent ground walls, improve the deformation resistance of the ground wall, and block groundwater from seeping into the ground wall.

[0003] However, in specific projects, the thickness of the diaphragm wall is determined comprehensively based on the wall's depth, impermeability requirements, stress, and deformation calculations. Commonly used diaphragm wall thicknesses include 0.8m, 1.0m, and 1.2m. The joint box, constructed of steel, requires high-precision processing, consumes a large amount of steel, and is therefore costly. A single joint box weighs approximately 50 tons and is used in pairs at the joints of two diaphragm walls during construction. Depending on the project schedule, a site may require four or six joint boxes, resulting in extremely high construction costs. Furthermore, after a project is completed, if the wall thickness varies, the joint box cannot be reused for other projects. Subsequent storage requires significant space, pollutes the site, and necessitates regular maintenance to prepare for the next diaphragm wall joint of the same thickness, making it economically inefficient.

[0004] Therefore, a universal rubber joint box for diaphragm walls is needed, which can adapt to the construction of diaphragm walls of different thicknesses, can be transferred between multiple projects, and can be reused, thereby greatly improving the utilization rate of the joint box and reducing construction costs. Summary of the Invention

[0005] The purpose of this invention is to provide a universal rubber joint box for diaphragm walls. Based on the existing "self-pushing joint box for rubber steel plate waterstop", the structure of the joint box is modified and designed to achieve the universality of the diaphragm wall joint box under various wall thickness conditions, and solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A universal rubber joint box for diaphragm walls is assembled from multiple joint box segments along its vertical length. It includes a main box and interchangeable side boxes of various specifications. The interchangeable side boxes are assembled on both sides of the main box. By combining the main box and the interchangeable side boxes of different specifications, it can adapt to the construction of diaphragm wall joints with different wall thicknesses.

[0008] Furthermore, the main box is a sealed box structure of a conventional rubber steel plate waterstop joint box, and the internal space is used to house the rubber steel plate waterstop clamping device and the pushing device.

[0009] Furthermore, the main housing has side openings and an internal thick plate. In the absence of the need to install a replaceable side housing, the holes on the side of the main housing are sealed with bolts in conjunction with the thick plate inside the main housing to prevent slurry from leaking into the joint box.

[0010] Furthermore, the interchangeable side box has various specifications and sizes according to the design requirements of the diaphragm wall project. The interchangeable side box is assembled onto the main box using elastic cylindrical pins and bolts to achieve the required diaphragm wall thickness.

[0011] Furthermore, the replaceable side enclosure has openings on both sides, and the opening positions match the opening positions on the sides of the main enclosure. The replaceable side enclosure is used when the thickness of the underground continuous wall is large. The specifications and dimensions of the replaceable side enclosure are determined according to the wall thickness. It is connected by a combination of elastic cylindrical pins and bolts of appropriate length to assemble the replaceable side enclosure onto the main enclosure, so that the assembly between the main enclosure and the replaceable side enclosure is tight and reliable.

[0012] Furthermore, the elastic cylindrical pin is used to connect and fix the interchangeable side housing to the side of the main housing, allowing for multiple disassembly and assembly. At the same time, the outer diameter of the elastic cylindrical pin is slightly larger than the assembly hole diameter, using a small amount of interference to eliminate gaps caused by machining errors, ensuring a tight connection between the joint housings.

[0013] Furthermore, the bolts are used for the installation and disassembly of the junction box bodies. They are used in conjunction with elastic cylindrical pins. The bolts only bear tensile stress and are not subject to shear stress. Through the fixed connection method, the interchangeability and versatility of the junction boxes are achieved.

[0014] Furthermore, the main box and the replaceable side box have a sloping structure on the sides, and the assembled joint box forms a trapezoidal structure. After the joint construction is completed, it can be easily demolded, reducing the difficulty of pushing and removing.

[0015] Furthermore, the holes on the sides of the main housing and the interchangeable side housing can also serve as lifting points, eliminating the need to weld additional lifting lugs onto the connector box and remove them after hoisting is complete.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The universal rubber joint box of this invention is assembled from two parts: a main box and interchangeable side boxes. By combining the main box with interchangeable side boxes of different specifications, it can adapt to the construction of diaphragm wall joints with varying wall thicknesses. The interchangeable side boxes have a simple structure, are easy to install and disassemble, and have low processing costs. They can be flexibly replaced and reused, reducing steel consumption. This universal rubber joint box, while ensuring sealing, easy pushing and pulling without damaging the joint, achieves interchangeability and versatility, guaranteeing the efficiency and effectiveness of diaphragm wall joint construction. It can be used in multiple projects, reducing costs and increasing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the universal rubber joint box structure for underground continuous walls according to an embodiment of the present invention;

[0019] Figures 2(a), (b), and (c) are schematic diagrams of the joint box structure for different wall thicknesses according to embodiments of the present invention.

[0020] In the diagram: 1. Main housing; 2. Replaceable side housing; 3. Elastic cylindrical pin; 4. Bolt; 5. Rubber steel plate waterstop clamping device; 6. Pushing device; 7. Thick plate built into the main housing. Detailed Implementation

[0021] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] like Figure 1 As shown, a universal rubber joint box for diaphragm walls includes a main box 1, interchangeable side boxes 2 of various specifications, elastic cylindrical pins 3, and bolts 4. In actual construction, it is assembled from multiple joint box segments along its vertical length. The main box 1 is a sealed box structure of a conventional rubber-steel plate waterstop joint box, housing a rubber-steel plate waterstop clamping device 5 and a pushing device 6. The sides of the main box 1 are designed with bevels and have holes for connection with the elastic cylindrical pins 3 or bolts 4. During connection, an internal thick plate 7 ensures the firmness of the elastic cylindrical pins 3 or bolts 4.

[0023] As shown in Figures 2(a), (b), and (c), the interchangeable side box 2 has various specifications and sizes according to the design requirements of the diaphragm wall project. The side is also designed with a slope and holes are opened on the slope. The position of the opening matches the position of the opening on the side of the main box 1. The interchangeable side box 2 is assembled onto the main box 1 by elastic cylindrical pins 3 and bolts 4 to achieve the required thickness of the diaphragm wall.

[0024] The flexible cylindrical pin 3 possesses good elasticity and shear stress resistance, allowing for repeated assembly and disassembly. Simultaneously, the outer diameter of the flexible cylindrical pin 3 is slightly larger than the assembly hole diameter, utilizing a slight interference fit to eliminate gaps caused by machining errors, ensuring a tight connection between the joint housings. The combined use of the flexible cylindrical pin 3 and bolt 4 facilitates the installation and disassembly of the joint housings. This fixed connection method ensures a tight and reliable assembly between the main housing 1 and the interchangeable side housing 2, achieving interchangeability and versatility of the joint housings.

[0025] As shown in Figure 2(a), in order to adapt to the working conditions of narrow wall thickness (i.e., the working conditions where there is no need to install the replaceable side box 2), this general rubber joint box only uses the main box 1. The bolts 4 are used in conjunction with the thick plate 7 inside the main box 1 to seal the opening on the side of the main box 1 to prevent the slurry from leaking into the joint box.

[0026] As shown in Figures 2(b) and (c), in order to adapt to different wall thickness conditions, the interchangeable side box 2 of appropriate size is assembled to the side of the main box 1 with the thick plate 7 inside the main box 1 using elastic cylindrical pins 3 and bolts 4.

[0027] Both the main body 1 and the replaceable side body 2 of this universal rubber joint box adopt a sloping design, giving the joint box an overall trapezoidal structure. This allows for easy demolding after joint construction, reducing the difficulty of pushing and removing the joint. The holes on the sides of the main body 1 and the replaceable side body 2 can also serve as lifting points, eliminating the need for additional lifting lugs welded onto the joint box. These lugs can be removed after hoisting, making construction more convenient.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A universal rubber joint box for diaphragm walls, composed of multiple joint box segments spliced ​​vertically along their entire length, characterized in that: The system includes a main housing and interchangeable side housings of various specifications. The interchangeable side housings are assembled on both sides of the main housing. The combination of the main housing and the interchangeable side housings of different specifications allows for the construction of underground continuous wall joints with varying wall thicknesses. The main housing is a sealed box-type structure of a conventional rubber-steel plate waterstop joint box. The internal space is used to house the rubber-steel plate waterstop clamping device and the jacking device. The main housing has side openings and an internal thick plate. When the interchangeable side housings are not required, bolts are used to secure the side openings of the main housing in conjunction with the thick plate inside the main housing to prevent grout from leaking into the joint box. The interchangeable side housings... According to the design requirements of the diaphragm wall project, there are various specifications and sizes. The interchangeable side boxes are assembled onto the main box using elastic cylindrical pins and bolts to achieve the required diaphragm wall thickness. The interchangeable side boxes have holes on both sides, and the hole positions match the hole positions on the sides of the main box. The interchangeable side boxes are used when the diaphragm wall thickness is large. The specifications and sizes of the interchangeable side boxes are determined according to the wall thickness. They are connected using elastic cylindrical pins and bolts of appropriate length to assemble the interchangeable side boxes onto the main box, ensuring a tight and reliable assembly between the main box and the interchangeable side boxes.

2. The universal rubber joint box for diaphragm walls according to claim 1, characterized in that: The elastic cylindrical pin is used to connect and fix the interchangeable side housing to the side of the main housing. It can be disassembled and assembled multiple times. At the same time, the outer diameter of the elastic cylindrical pin is slightly larger than the assembly hole diameter. The slight interference eliminates the gap caused by the machining error and ensures a tight connection between the joint housings.

3. The universal rubber joint box for diaphragm walls according to claim 1, characterized in that: The bolts are used for the installation and disassembly of the junction box bodies. They are used in conjunction with elastic cylindrical pins. The bolts only bear tensile stress and are not subject to shear stress. Through the fixed connection method, the interchangeability and versatility of the junction boxes are achieved.

4. The universal rubber joint box for diaphragm walls according to claim 1, characterized in that: The main box and the replaceable side box have a sloping structure on the sides. The assembled joint box forms a trapezoidal structure. After the joint construction is completed, it can be easily demolded, reducing the difficulty of pushing and pulling.

5. The universal rubber joint box for diaphragm walls according to claim 1, characterized in that: The holes on the sides of the main housing and the interchangeable side housing can also serve as lifting points, eliminating the need to weld additional lifting lugs onto the connector box and remove them after hoisting is complete.

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