Modular adjustable steel structural support device

Abstract

The utility model provides a modular adjustable steel structure support device belongs to the technical field of support, it includes: a plurality of corner columns of stable core spare and wall body panel along the working pit contour distribution, when installing, the construction personnel first accurately position the position of four groups of stable core spare according to the standard spacing (usually 1.5-2.5 meters) in the foundation pit design support area, adopt the auxiliary tool and hit its into the ground predetermined depth, then install a layer of corner column on every group stable core spare, finally install the wall body panel between two adjacent corner columns, and the outside of wall body panel is used for resisting the falling broken soil, guarantees the security of the construction inside working pit, and the modular design adjustable steel structure support device can give consideration to the advantages such as quick installation, accurate positioning and efficient construction.

Description

Technical Field

[0001] This utility model relates to the field of support technology, specifically a modular adjustable steel structure support device. Background Technology

[0002] In underground pipeline construction, especially in pipe jacking projects, it is crucial to construct safe and stable starting and receiving pits.

[0003] Traditional working pit support methods mainly include: driven steel sheet piles, traditional trench boxes / shields, and sliding rail support systems.

[0004] Driven sheet piles: This method requires the use of heavy vibratory hammers, which generate significant noise and ground vibration in urban environments, potentially damaging nearby buildings and existing underground pipelines. Furthermore, it is slow to construct and extremely difficult to precisely work around existing pipelines.

[0005] Traditional trench boxes / shields: These devices are typically made of steel, resulting in a bulky structure that is difficult to handle and install. Although some products feature modular designs, their connection mechanisms often rely on traditional bolts and pins, making installation and disassembly time-consuming, labor-intensive, and difficult to fine-tune. Their fixed-size design leads to poor versatility when dealing with working pits of different sizes, resulting in low reusability, which is one of the core problems faced by users.

[0006] Sliding rail support systems employ a "dig-as-you-go" installation method, where the support plate slides downwards within grooves in the columns. This method significantly improves the safety of deep excavation operations. However, these systems remain structurally complex, with heavy components, and the assembly process is not optimized for speed; the connection points between the columns, support plates, and support rods are often the efficiency bottleneck in the entire installation and dismantling process.

[0007] In order to further achieve the goals of rapid installation, precise positioning, and efficient construction, this utility model provides a modular adjustable steel structure support device. Utility Model Content

[0008] To address the issues of traditional working pit support methods failing to simultaneously achieve rapid installation, precise positioning, and high construction efficiency, this utility model provides a modular adjustable steel structure support device.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A modular adjustable steel structure support device, comprising:

[0011] Several corner columns distributed along the outline of the working pit;

[0012] A stabilizing core component is inserted into the core hole of the corner column, and the bottom end of the stabilizing core component is driven into the soil layer at the bottom of the working pit.

[0013] The wall panel is installed between two adjacent corner columns.

[0014] As a further description of the above technical solution:

[0015] The corner columns and wall panels are arranged in multiple layers along the height of the working pit.

[0016] As a further description of the above technical solution:

[0017] A tongue-and-groove structure is provided between the two corresponding wall panels.

[0018] As a further description of the above technical solution:

[0019] The wall panel includes: a frame, with plates fixedly connected to both sides of the frame;

[0020] The corner column is provided with a guide groove on its side, and the side of the whole formed by the frame and the plate is fixedly connected with a sliding block that cooperates with the guide groove.

[0021] As a further description of the above technical solution:

[0022] The stabilizing core component includes:

[0023] A connecting post, wherein the bottom end of the connecting post is provided with a pointed part;

[0024] Several first columns are arranged in a segmented manner, and adjacent first columns are detachably connected by a connecting structure. The first column at the bottom is slidably engaged with the connecting column.

[0025] A hydraulic telescopic component is fixedly connected to a connecting column, and the telescopic end of the hydraulic telescopic component is fixedly connected to the first column located at the bottom.

[0026] As a further description of the above technical solution:

[0027] An outer sleeve is provided on the outside of the connection between the connecting column and the first column located at the bottom. An inner sleeve is provided between the inner side of the outer sleeve and the connecting column. The inner sleeve is fixedly connected to the outer sleeve. The contact surface between the inner sleeve and the connecting column is designed as an anti-slip surface.

[0028] As a further description of the above technical solution:

[0029] The top of the inner component is fixedly connected to a guide rod, which is slidably engaged with the connecting column and the first column at the bottom.

[0030] The beneficial effects of this utility model are:

[0031] This utility model, through the design of corner columns, stabilizing core components, and wall panels, allows construction workers to first precisely locate the positions of four sets of stabilizing core components in the designed support area of ​​the foundation pit according to the standard spacing (usually 1.5-2.5 meters). Using auxiliary tools, these components are driven into the ground to a predetermined depth. Then, a layer of corner columns is installed on each set of stabilizing core components. Finally, a wall panel is installed between two adjacent corner columns. The outer side of the wall panel is used to resist sliding debris, ensuring the safety of construction inside the working pit. This modular, adjustable steel structure support device combines the advantages of rapid installation, precise positioning, and efficient construction. Attached Figure Description

[0032] To more clearly illustrate a modular adjustable steel structure support device, the following figures are shown;

[0033] Figure 1 This is a perspective view of the present utility model;

[0034] Figure 2 This is a front view of the present invention;

[0035] Figure 3 This is an exploded view of the present invention;

[0036] Figure 4 This is a perspective view of the corner post and the stabilizing core component of this utility model.

[0037] Figure 5 This is a cross-sectional view of the corner post and the stabilizing core component of this utility model;

[0038] Figure 6 for Figure 5 Enlarged view of a portion of point A in the middle;

[0039] Figure 7 This is a schematic diagram of the splicing of the wall panel of this utility model;

[0040] Figure 8 This is a view of the interior of the wall panel of this utility model.

[0041] The labels in the attached diagram;

[0042] 1. Corner post; 1a. Guide groove; 2. Stabilizing core; 201. Connecting post; 202. First post; 203. Outer casing; 204. Inner casing; 205. Guide rod; 206. Hydraulic telescopic component; 3. Wall panel; 301. Sliding block; 302. Panel; 303. Frame; 4. Tongue and groove structure; 5. Connection structure. Detailed Implementation

[0043] Please refer to the attached document. Figures 1-8 This application illustrates a modular adjustable steel structure support device provided in an embodiment of the present application, used for supporting a working pit and ensuring the safe conduct of construction operations. Specifically, it includes: several corner columns 1 distributed along the outline of the working pit, a stabilizing core component 2, and a wall panel 3.

[0044] The corner column 1, the stabilizing core 2, and the wall panel 3 all adopt a modular design and are assembled and used during construction. The stabilizing core 2 is inserted into the core hole of the corner column 1, and the bottom end of the stabilizing core 2 is driven into the soil layer at the bottom of the working pit. The wall panel 3 is installed between two adjacent corner columns 1.

[0045] like Figure 1 As shown, a quadrilateral modular adjustable steel structure support device is specifically designed, which includes four sets of stabilizing core members 2, four multi-layered corner columns 1, and wall panels 3.

[0046] During installation, the construction workers first precisely locate the positions of four sets of stabilizing core components 2 in the foundation pit support area according to the standard spacing (usually 1.5-2.5 meters), and use auxiliary tools to drive them into the ground to the predetermined depth. Then, a layer of corner columns 1 is installed on each set of stabilizing core components 2. Finally, a wall panel 3 is installed between two adjacent corner columns 1. The outer side of the wall panel 3 is used to resist the sliding of broken soil and ensure the safety of construction inside the working pit. This modular adjustable steel structure support device can take into account the advantages of rapid installation, precise positioning and efficient construction.

[0047] In one embodiment, the corner column 1 and the wall panel 3 are provided in multiple layers along the height direction of the working pit, so that the appropriate number of layers can be arranged according to the actual depth of the foundation pit, and its applicability is wider.

[0048] In one embodiment, a tongue and groove structure 4 is provided between two wall panels 3 that are corresponding to each other. The tongue and groove structure 4 includes an insert plate at the bottom of the upper wall panel 3 and an inlet at the top of the lower wall panel 3. The tongue and groove structure 4 can ensure the stability of the connection between the two wall panels 3 that are corresponding to each other. If necessary, waterproof sealant can be applied to the connection between the two wall panels 3 that are corresponding to each other.

[0049] In one embodiment, the wall panel 3 includes a frame 303, with plates 302 fixedly connected to both sides of the frame 303.

[0050] The structure composed of the skeleton 303 and the inner and outer layer plates 302 is lighter in weight and easier to transport and install while meeting the stiffness requirements. The outer layer plate 302 is equipped with a geogrid so that it can have a closer contact with the outer soil layer.

[0051] The corner column 1 has a guide groove 1a on its side. The guide groove 1a is made of Q345B steel and has a polytetrafluoroethylene wear-resistant layer on its inner wall. This ensures smooth sliding (friction coefficient ≤0.15) and avoids noise and wear caused by direct metal contact. The side of the whole formed by the frame 303 and the plate 302 is fixedly connected with a sliding block 301 that cooperates with the guide groove 1a.

[0052] The guide groove 1a and the sliding block 301 form a dovetail structure, which ensures the vertical sliding requirement, and the wall panel 3 can limit the tilt of the two corner columns 1.

[0053] In one embodiment, the stabilizing core 2 includes: a connecting post 201, a plurality of first uprights 202, and a hydraulic telescopic member 206.

[0054] The bottom end of the connecting column 201 is provided with a pointed part so that it can be easily inserted into the soil layer. Several first columns 202 are distributed vertically in a segmented manner. Adjacent first columns 202 are detachably connected by a connecting structure 5. The connecting structure 5 can be a threaded connection structure, a flange connection structure, etc. The first column 202 at the bottom is slidably engaged with the connecting column 201. The hydraulic expansion member 206 is fixedly connected to the connecting column 201, and the expansion end of the hydraulic expansion member 206 is fixedly connected to the first column 202 at the bottom.

[0055] When the hydraulic telescopic component 206 extends, it can push the connecting column 201 downward and push several first columns 202 upward. When the soil at the bottom of the connecting column 201 becomes loose, the connecting column 201 can continue to be inserted into a deeper layer of soil, effectively compensating for the connecting column 201. The first columns 202 move upward and extend from the top, allowing the installation of the next section of the first column 202 above, preparing for the subsequent installation of the upper corner columns 1.

[0056] In one embodiment, an outer sleeve 203 is provided on the outer side of the connection between the connecting post 201 and the first column 202 located at the bottom. An inner sleeve 204 is provided between the inner side of the outer sleeve 203 and the connecting post 201. The inner sleeve 204 is fixedly connected to the outer sleeve 203. The contact surface between the inner sleeve 204 and the connecting post 201 is designed as an anti-slip surface. There is sufficient friction between the inner sleeve 204 and the connecting post 201 to keep the outer sleeve 203 and the inner sleeve 204 always located on the outer side of the connection between the connecting post 201 and the first column 202 located at the bottom. The outer sleeve 203 can further ensure the stability of the sliding fit between the first column 202 located at the bottom and the connecting post 201.

[0057] In one embodiment, a guide rod 205 is fixedly connected to the top of the inner sleeve 204. The guide rod 205 is slidably engaged with the connecting column 201 and the first column 202 located at the bottom. Generally, flanges are fixedly connected to the ends of the first column 202 located at the bottom and the connecting column 201, and the guide rod 205 is slidably engaged with the flanges.

[0058] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0059] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A modular adjustable steel structure support device, characterized in that, include: Several corner columns distributed along the outline of the working pit (1); The stabilizing core (2) is inserted into the core hole of the corner column (1), and the bottom end of the stabilizing core (2) is driven into the soil layer at the bottom of the working pit. Several wall panels (3) are installed between two adjacent corner columns (1).

2. The modular adjustable steel structure support device according to claim 1, characterized in that: The corner columns (1) and wall panels (3) are provided with multiple layers along the height direction of the working pit.

3. The modular adjustable steel structure support device according to claim 2, characterized in that: A tongue-and-groove structure (4) is provided between the two wall panels (3) that are corresponding to each other.

4. A modular adjustable steel structure support device according to claim 3, characterized in that, The wall panel (3) includes: a frame (303), and plates (302) are fixedly connected to both sides of the frame (303); The corner column (1) is provided with a guide groove (1a) on its side, and the side of the whole consisting of the frame (303) and the plate (302) is fixedly connected with a sliding block (301) that cooperates with the guide groove (1a).

5. A modular adjustable steel structure support device according to claim 1, characterized in that, The stabilizing core (2) includes: A connecting post (201) is provided with a pointed end at its bottom; Several first columns (202) are arranged in a segmented manner, and two adjacent first columns (202) are detachably connected by a connecting structure (5). The first column (202) at the bottom is slidably engaged with the connecting column (201). A hydraulic telescopic component (206) is fixedly connected to a connecting column (201), and the telescopic end of the hydraulic telescopic component (206) is fixedly connected to the first column (202) located at the bottom.

6. A modular adjustable steel structure support device according to claim 5, characterized in that: An outer sleeve (203) is provided on the outside of the connection between the connecting column (201) and the first column (202) located at the bottom. An inner sleeve (204) is provided between the inner side of the outer sleeve (203) and the connecting column (201). The inner sleeve (204) is fixedly connected to the outer sleeve (203). The contact surface between the inner sleeve (204) and the connecting column (201) is designed as an anti-slip surface.

7. A modular adjustable steel structure support device according to claim 6, characterized in that: The top of the inner component (204) is fixedly connected to a guide rod (205), and the guide rod (205) is slidably engaged with the connecting column (201) and the first column (202) located at the bottom.

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