Steel plate component of fabricated diaphragm wall

Abstract

The utility model discloses a steel plate member of an assembly type diaphragm wall, and relates to the technical field of civil engineering and the technical field of assembly type member nodes, the steel plate member is of a vertically-through cavity structure, and the left end and the right end of the steel plate member are provided with mortise and tenon joint structures connected with the other steel plate member. The upper end and the lower end are provided with an inserting structure and a fixing structure which are connected with another steel plate component; the fixing structure comprises a first boss extending outwards, a second boss extending outwards and bolts, the first boss is fixed to the upper end of the steel plate component, the second boss is fixed to the lower end of the steel plate component, a plurality of first bolt holes are formed in the first boss, a plurality of second bolt holes are formed in the second boss, and the first bolt holes and the second bolt holes are communicated with each other. The bolts penetrate through the second bolt holes of one steel plate component and then are connected with the first bolt holes of the other steel plate component. The method has the characteristics of structural safety improvement, convenient construction, floating resistance and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of civil engineering, and in particular to a steel plate component of an assembled diaphragm wall. BACKGROUND

[0002] Underground continuous walls are widely used in civil engineering preliminary work. Assembled underground continuous walls are a construction method of underground continuous walls that has gradually emerged in recent years. The assembled diaphragm wall has the following advantages: greater rigidity of the wall, better flatness of the wall, and high space utilization.

[0003] However, the assembled continuous wall still has some deficiencies. The connection structure of the assembled diaphragm wall has the following relative characteristics: when connecting the left and right bays, the strength and splicing operation are relative; the connection structure is simple and easy to splice, but the structural connection strength is insufficient; the upper and lower bay connections are greatly affected by construction; the existing construction methods will damage the structure, regardless of whether vibration sinking or pressure sinking is used; before a new adaptive construction method is developed, it is worth exploring how to use existing construction techniques to construct. The existing welding connection is too general, time-consuming and inconvenient, and may have low welding efficiency and poor welding quality. However, the deeper the steel plate component, the higher the requirement for the welding process. The previous bolt connection is on the inside and outside of the steel plate component, which has safety hazards and is inconvenient to operate. Workers need to enter the component interior for installation, which has the problems of inconvenient operation and unsafe operation.

[0004] For existing utility model patents, such as a prefabricated component and an underground combined structure wall [utility model] ZL202420338353. 1, the splicing structure uses welding but has a sudden change in cross-section, making it difficult to evaluate the structural safety during construction; such as UHPC-NC combined structure underground continuous wall configuration [utility model] ZL202321139279. 2, the splicing structure uses bolt connection but is on the inside and outside of the component, which has the above-mentioned problems of inconvenient operation and worker safety hazards during construction.

[0005] In addition, the assembled steel plate component needs to consider the anti-floating problem of the component, and previous scholars have not considered this factor in structural design. CONTENT OF THE UTILITY MODEL

[0006] In view of this, the embodiments of the present application provide a steel plate component of an assembled diaphragm wall to solve the technical problems in the background art.

[0007] According to the embodiment of the present application, a steel plate component of a fabricated diaphragm wall is provided, the steel plate component is in a through cavity structure from top to bottom, left and right ends of the steel plate component have a mortise and tenon structure connected with another steel plate component, upper and lower ends have a plug-in structure and a fixing structure connected with another steel plate component; the fixing structure comprises a first outwardly extending boss, a second outwardly extending boss and a bolt, the first boss is fixed at the upper end of the steel plate component, the second boss is fixed at the lower end of the steel plate component, a plurality of first bolt holes are formed on the first boss, a plurality of second bolt holes are formed on the second boss, and the bolt is connected with the first bolt hole of another steel plate component after passing through the second bolt hole of a steel plate component.

[0008] Optionally, the mortise and tenon structure comprises a tenon and a mortise which are the same structure, and the tenon and the mortise each comprise a trapezoidal concave-convex part and a sawtooth locking part connected on both sides of the trapezoidal concave-convex part.

[0009] Optionally, the plug-in structure comprises a plug-in slot and a plug-in plate, the plug-in slot is formed at the upper end of the steel plate component, and the plug-in plate is fixedly connected at the lower end of the steel plate component, the plug-in plate of a steel plate component can be inserted into the plug-in slot of another steel plate component.

[0010] Optionally, the first boss is in a slope shape, and the second boss is provided with inclined struts on both sides.

[0011] The technical scheme provided by the embodiment of the present application can include the following beneficial effects:

[0012] The mortise and tenon structure is used to solve the strength problem of the fabricated steel plate component when connected in left and right widths, the sawtooth locking part makes the component connection firm, and also ensures the easy operation of splicing. The upper and lower plate width plug-in structure and the fixing structure of the steel plate component are used to solve the strength and operation problems of the steel plate component when connected in upper and lower widths. After the plug-in plate and the plug-in slot of the upper and lower width steel plate components are connected, the bolt is connected at the bolt hole of the first boss and the second boss, workers do not need to operate inside the component during construction, and safety hazards are reduced. Considering the anti-floating design, the first boss and the second boss are outwardly extended, and when the component is affected by underground water, the outwardly extended first boss and the second boss can play an anti-floating role, thereby greatly improving the stability and safety of the diaphragm wall.

[0013] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application.

[0015] Figure 1 is a structural schematic diagram of a steel plate component of an assembled diaphragm wall according to an example embodiment of the application.

[0016] Figure 2 is an up-down assembly schematic diagram of a steel plate component of an assembled diaphragm wall according to an example embodiment of the application.

[0017] Figure 3 is a left-right end structure plane schematic diagram of a steel plate component of an assembled diaphragm wall according to an example embodiment of the application.

[0018] Figure 4 is a left-right end structure assembly plane schematic diagram of a steel plate component of an assembled diaphragm wall according to an example embodiment of the application.

[0019] Figure 5 is a boss structure cross-sectional schematic diagram of a steel plate component of an assembled diaphragm wall according to an example embodiment of the application.

[0020] Figure 6 is an elevation schematic diagram of a boss structure of a steel plate component of an assembled diaphragm wall according to an example embodiment of the application.

[0021] In the drawings:

[0022] 1, steel plate component; 2, tenon concave taper head; 3, tenon outer sawtooth; 4, mortise convex taper head; 5, mortise inner sawtooth; 6, first boss; 7, insertion slot; 8, second boss; 9, insertion plate; 10, bolt; 11, first bolt hole; 12, second bolt hole. DETAILED DESCRIPTION

[0023] The example embodiments will now be described in detail with reference to the accompanying drawings. If the description of the embodiments of the example embodiments described below refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise described. The following example embodiments described in the example embodiments do not represent all the implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0024] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the description of the embodiments of the present application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It also will be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0025] It should be understood that, although the terms first, second, third, etc. can be employed in this application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another type of information. For example, without departing from the scope of the application, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon determination" or "in response to determining".

[0026] Reference Figures 1-6 The steel plate component 1 is in a hollow structure through up and down, the left and right ends of the steel plate component 1 have a mortise and tenon structure connected with another steel plate component 1, the upper and lower ends have a plug-in structure and a fixed structure connected with another steel plate component 1; the fixed structure includes a first boss 6 extending outward, a second boss 8 extending outward and a bolt 10, the first boss 6 is fixed at the upper end of the steel plate component 1, the second boss 8 is fixed at the lower end of the steel plate component 1, a plurality of first bolt holes 11 are opened on the first boss 6, a plurality of second bolt holes 12 are opened on the second boss 8, the bolt 10 is connected with the first bolt hole 11 of another steel plate component 1 through the second bolt hole 12 of a steel plate component 1. Through the mortise and tenon structure, the strength problem of the assembled steel plate component 1 when connected in the left and right width is solved, the zigzag lock makes the component connection firm, and also ensures the characteristics of easy operation of splicing. The steel plate component 1 has an upper and lower plate width plug-in structure and a fixed structure. To solve the strength and operation problems of the steel plate component 1 in the upper and lower width connection. After the upper and lower width steel plate component 1 is connected through the plug-in plate 9 and the plug-in groove 7, the bolt 10 is connected at the bolt hole of the first boss 6 and the second boss 8, which does not need workers to operate inside the component during construction, and reduces the safety hidden trouble. Considering the anti-floating design, the first boss 6 and the second boss 8 extend outward, when the component is affected by underground water, the outwardly extending first boss 6 and the second boss 8 can play an anti-floating role, thereby greatly improving the stability and safety of the diaphragm wall.

[0027] In an embodiment, the mortise and tenon structure includes a tenon and a mortise with the same structure, the tenon and the mortise each include a trapezoidal concave-convex part and a zigzag lock part connected on both sides of the trapezoidal concave-convex part, so that the left and right width walls can be effectively spliced together, and the integrity of the wall is further ensured.

[0028] More specifically, the tenon includes a tenon concave trapezoidal head 2 and a tenon outer zigzag 3 connected on both ends of the tenon concave trapezoidal head 2, and the mortise includes a mortise convex trapezoidal head 4 and a mortise inner zigzag 5 connected on both ends of the mortise convex trapezoidal head 4.

[0029] In an embodiment, the insertion structure comprises a slot 7 and an insertion plate 9, the slot 7 is arranged at the upper end of the steel plate member 1, and the insertion plate 9 is fixedly connected at the lower end of the steel plate member 1, the insertion plate 9 of one steel plate member 1 can be inserted into the slot 7 of another steel plate member 1, which plays a role in assembly positioning and avoids structural damage caused by subsidence disturbance.

[0030] In an embodiment, the first boss 6 is in the shape of a slope, and the second boss 8 is provided with inclined struts on both sides.

[0031] In an embodiment, the bolt 10 can be selected from self-locking bolts 10, lock cap bolts 10, etc. according to economy, so as to improve construction efficiency.

[0032] The assembly type steel plate member 1 is used in the construction method of internal grouting excavation and pressure sinking of the diaphragm wall, before pressure sinking, lubricant is sprayed on the outer surface of the steel plate member 1, and the steel plate member 1 is assembled by first up-down width, then left-right width, and finally mud replacement filler forms a complete underground continuous wall.

[0033] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The specification and examples given are exemplary only and the true scope and spirit of the application are indicated by the claims. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the application are indicated by the following claims.

[0034] It should be understood that the application is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the appended claims.

Claims

1. A steel plate component of an assembled ground-connected wall, characterized in that: The steel plate member is a hollow structure that passes through from top to bottom. The left and right ends of the steel plate member have mortise and tenon structures connected to another steel plate member, and the upper and lower ends have plug-in structures and fixing structures connected to another steel plate member. The fixing structure includes a first boss extending outward, a second boss extending outward and a bolt, the first boss is fixed to the upper end of the steel plate component, the second boss is fixed to the lower end of the steel plate component, a plurality of first bolt holes are opened on the first boss, and a plurality of second bolt holes are opened on the second boss. The bolts pass through the second bolt holes of one steel plate component and are connected to the first bolt holes of another steel plate component.

2. The steel plate component of the assembled ground-connected wall according to claim 1, characterized in that: The mortise and tenon structure comprises a tenon and a mortise with the same structure, and both the tenon and the mortise comprise a trapezoidal concave-convex portion and a serrated lock portion connected to both sides of the trapezoidal concave-convex portion.

3. The steel plate component of the assembled ground-connected wall according to claim 1, characterized in that: The plug-in structure includes a slot and a plug-in plate. The slot is opened at the upper end of the steel plate component, and the plug-in plate is fixedly connected to the lower end of the steel plate component. The plug-in plate of one steel plate component can be inserted into the slot of another steel plate component.

4. The steel plate component of the assembled ground-connected wall according to claim 1, characterized in that: The first boss is sloped, and diagonal braces are provided on both sides of the second boss.

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