Novel base plate device of pile pulling machine for SMW (soil mixing wall) construction method piles

Abstract

The utility model discloses a novel SMW construction method pile extractor base plate device which comprises a base plate body located below a pile extractor and used for supporting the pile extractor, the base plate body is of a plate-shaped structure, and the bottom face of the base plate body is detachably connected with a ground inserting frame capable of being inserted into soil. I-shaped grooves corresponding to H-shaped steel are formed in the surface of the base plate body in a penetrating mode, and hanging brackets used for assisting in hoisting are arranged at the four corners of the surface of the base plate body. The base plate has the beneficial effects that the base plate body is supported through the ground inserting frame inserted into soil, the bearing capacity of the base plate body in soft soil can be effectively enhanced, and stable placement of the base plate body is achieved; the pile pulling machine is supported through the base plate body, the pile pulling machine is assisted to work on soft soil, the operation safety is improved, and the efficiency of the pile pulling process is further improved.

Description

Technical Field

[0001] The utility model relates to the field of pile extractor pads, and particularly to a novel pile extractor pad device for SMW method piles. Background Art

[0002] A pile extractor is a mechanical device specifically used for extracting piles, which is widely used in construction projects and infrastructure construction. Its main function is to remove the piles that have been driven into the soil by the extraction force, usually used when the piles need to be replaced or demolished. The design of the pile extractor takes into account efficiency and safety, and is usually equipped with a hydraulic system to generate sufficient extraction force.

[0003] Since the feet of the pile extractor sink on the ground due to uneven force, this settlement may cause the equipment to be unstable, thus affecting the safety and accuracy of operation; especially in soft soil or loose soil conditions, the settlement of the feet is more obvious, which may cause the equipment to tilt or lose control.

[0004] The patent application with the publication number of CN220184016U discloses a pile extraction device for SMW method piles for extracting the steel sections to be extracted, including a load-bearing steel section, and a support assembly is arranged at the top of the load-bearing steel section; the support assembly includes a support bottom plate, and a first through hole for the steel section to be extracted to pass through is arranged in the middle of the support bottom plate, and a pile extraction assembly is arranged at the top of the support bottom plate; one end of the support bottom plate is provided with a support shell, and an opening is arranged at the bottom of the support shell; the top inner wall of the support shell is in contact connection with the top of the load-bearing steel section.

[0005] Although the device disclosed in the above patent literature can achieve the purpose of pile extraction assistance to a certain extent, its equipment is large and bulky and cannot be used flexibly. Therefore, providing a novel pile extractor pad device for SMW method piles has become a problem worthy of research. Content of the Utility Model

[0006] In order to solve the deficiencies existing in the above-mentioned prior art, the purpose of the utility model is to use the ground plug frame inserted into the soil to form the support for the pad body, which can effectively enhance its bearing capacity in soft soil and realize the stable placement of the pad body.

[0007] The purpose of the utility model is realized as follows:

[0008] A novel pile extractor pad device for SMW method piles includes a pad body located below the pile extractor to support it. The pad body is in a plate-like structure, and a ground plug frame that can be inserted into the soil is detachably connected to its bottom surface; an I-shaped groove corresponding to the H-shaped steel penetrates through the surface of the pad body, and lifting lugs for assisting in hoisting are arranged at the four corners of the surface of the pad body.

[0009] The surface of the backing plate body is penetrated by through holes at the four corners. The hanging frame has a linear structure, and both ends are connected to the inner wall of the through holes. The upper surface of the hanging frame is flush with the upper surface of the backing plate body.

[0010] A connecting block is provided on the upper surface of the ground plug-in frame, and a slot corresponding to the plug-in of the connecting block is provided on the side wall of the backing plate body.

[0011] The cross section of the connecting block is in a "T" shape or a dovetail shape.

[0012] The backing plate body is fixedly connected to the connecting block by bolts.

[0013] The ground plug-in frame is continuously concave and convex along its length direction.

[0014] The bottom surface of the ground plug-in frame is in a "V" shape to facilitate the insertion of the ground plug-in frame into the soil.

[0015] The surface of the backing plate body is provided with a pattern having a concave-convex structure.

[0016] An exhaust groove is provided on the bottom surface of the backing plate body. The exhaust groove includes longitudinal and / or transverse groove bodies, and the groove body penetrates the side wall of the pile extractor.

[0017] An inclined or arc-shaped bevel angle is provided at the concave inner corner of the "I" shape in the I-shaped groove.

[0018] Positive and beneficial effects: The utility model uses the ground plug-in frame inserted into the soil to form a support for the backing plate body, which can effectively enhance its bearing capacity in soft soil and realize the stable placement of the backing plate body; the pile extractor is supported by the backing plate body to assist the pile extractor to work on soft soil, improving the operation safety and enhancing the efficiency of the pile extraction process. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 is a top view of the utility model;

[0021] Figure 3 is a bottom view of the utility model;

[0022] Figure 4 is a bottom view of the third embodiment of the utility model;

[0023] Figure 5 is in the utility model Figure 2 is a schematic structural diagram of the backing plate body in;

[0024] Figure 6 is in the utility model Figure 3 is an enlarged schematic structural diagram of the ground plug-in frame in;

[0025] Figure 7 In the present utility model Figure 1 Schematic enlarged cross-section of the through-hole in the middle

[0026] In the figure: pile extractor 1, backing plate body 2, through-hole 201, hanging bracket 202, I-shaped groove 203, slot 204, exhaust groove 205, ground plug-in frame 3, connecting block 301; Specific embodiments

[0027] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] See Figures 1 - 7 As shown, a novel SMW method pile extractor backing plate device provided by the present utility model includes a backing plate body 2 located below the pile extractor 1 to support it. The backing plate body 2 is located below the pile extractor 1 to assist in supporting the pile extractor 1, thereby avoiding the settlement of the feet of the pile extractor 1 and ensuring the extraction of the H-shaped steel;

[0029] The backing plate body 2 has a plate-like structure, and a ground plug-in frame 3 that can be inserted into the soil is detachably connected to its bottom surface. During use, the ground plug-in frame 3 can be inserted into the soil to form a support for the backing plate body 2, which can effectively enhance its bearing capacity in soft soil and realize the stable placement of the backing plate body 2. An I-shaped groove 203 corresponding to the H-shaped steel penetrates through the surface of the backing plate body 2. Further, an inclined or arc-shaped chamfer is provided at the inner concave corner of the "I" shape in the I-shaped groove 203, thereby ensuring the support effect of the backing plate body 2 on the pile extractor 1 while reducing the friction between the H-shaped steel and the inner concave corner position of the I-shaped groove 203; Hanging brackets 202 for assisting in the hoisting of the backing plate body 2 are provided at the four corners of the surface of the backing plate body 2. During use, the hanging brackets 202 can be used to assist in the hoisting of the backing plate body 2 to facilitate the position adjustment of the backing plate body 2, so that the I-shaped groove 303 corresponds to the H-shaped steel. Place the backing plate body 2 downward, then the plug-in frame 3 is inserted into the soil to form an auxiliary support for the backing plate body 2. Place the feet of the pile extractor 1 on the backing plate body 2, and use the backing plate body to form a support for the feet of the pile extractor 1, which not only improves the safety of operation but also enhances the efficiency of the pile extraction process.

[0030] Further, through-holes 201 penetrate through the four corners of the surface of the backing plate body 2. The hanging brackets 202 are of a linear structure, and both ends are connected to the inner wall of the through-holes 201. The upper surface of the hanging brackets 202 is flush with the upper surface of the backing plate body 2. With this setting, the hanging brackets 202 at the four corners of the backing plate body 2 facilitate handling and position adjustment, avoiding the obstruction and bumping of the hanging brackets 202 to machinery and equipment and staff, and providing higher efficiency and reliability for the construction site.

[0031] The upper surface of the ground socket 3 is provided with a connecting block 301, and the side wall of the backing plate body 2 is provided with a slot 204 corresponding to the insertion of the connecting block 301. Further, the cross-section of the connecting block 301 is in the shape of a "T" or a dovetail, and the connecting block 301 and the slot 204 are in clearance fit. When installing the ground socket 3, the installation of the connecting block 301 is realized by using the insertion of the connecting block 301 and the slot 204, so as to realize the installation of the ground socket 3. Among them, the ground socket 3 and the connecting block 301 are welded. Further, the upper surface of the backing plate body 2 is connected and fixed to the connecting block 301 by bolts. A stepped hole corresponding to the bolt is provided on the surface of the backing plate body 2, and a threaded hole corresponding to the stepped hole is provided on the ground socket 3. When the stepped hole and the threaded hole are corresponding, bolts can be installed in the stepped hole and the threaded hole, so as to realize the connection between the backing plate body 2 and the ground socket 3.

[0032] The ground socket 3 is continuously concave and convex along its length direction, that is, the ground socket 3 is in a wavy or continuous concave and convex structure. Such a setting has a better fixing effect on the ground socket 3. The bottom surface of the ground socket 3 is in a "V" shape, so as to facilitate the ground socket 3 to be inserted into the soil to realize the fixation of the backing plate body 2. Further, during the use of the pile extractor 1, the working stability of the pile extractor 1 is ensured.

[0033] The bottom surface of the backing plate body 2 is provided with an exhaust groove 205. The exhaust groove 205 includes longitudinal and / or transverse grooves, and the groove penetrates the side wall of the pile extractor 1. When the backing plate body 2 is placed on the ground, the bottom surface of the backing plate body 2 contacts the ground surface, and part of the soil enters the exhaust groove 205, so as to assist the backing plate body 2 to be placed more stably.

[0034] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A novel bearing plate device for a SMW method pile extractor, comprising a bearing plate body (2) located below the pile extractor (1) to support it, characterized in that, The base plate body (2) is in a plate-like structure, and a ground plug-in frame (3) that can be inserted into the soil is detachably connected to its bottom surface; an I-shaped groove (203) corresponding to the H-shaped steel penetrates through the surface of the base plate body (2), and hanging brackets (202) for assisting in hoisting are provided at the four corners of the surface of the base plate body (2).

2. The novel SMW method pile extractor backing plate device according to claim 1, wherein: Through holes (201) penetrate through the four corners of the surface of the base plate body (2), the hanging brackets (202) are in a linear structure, and both ends are connected to the inner walls of the through holes (201), and the upper surfaces of the hanging brackets (202) are flush with the upper surface of the base plate body (2).

3. A novel SMW method pile extractor backing plate device according to claim 1, characterized in that: A connecting block (301) is provided on the upper surface of the ground plug-in frame (3), and a slot (204) corresponding to the insertion of the connecting block (301) is provided on the side wall of the base plate body (2).

4. A novel bearing plate device for SMW method pile extractor according to claim 3, characterized in that: The cross section of the connecting block (301) is in a "T" shape or a dovetail shape.

5. The novel SMW method pile extractor backing plate device according to claim 3, wherein: The base plate body (2) is fixedly connected to the connecting block (301) by bolts.

6. The novel SMW method pile extractor backing plate device according to claim 1 or 3, characterized in that: The ground plug-in frame (3) is continuously concave and convex along its length direction.

7. A novel cushion plate device for a SMW method pile extractor according to claim 6, characterized in that: The bottom surface of the ground plug-in frame (3) is in a "V" shape to facilitate the insertion of the ground plug-in frame (3) into the soil.

8. A novel SMW method pile extractor backing plate device according to claim 1, characterized in that: The surface of the base plate body (2) is provided with a concave-convex structure pattern.

9. A novel bearing plate device for an SMW method pile extractor according to claim 1 or 8, characterized in that: An exhaust groove (205) is provided on the bottom surface of the base plate body (2), the exhaust groove (205) includes longitudinal and / or transverse grooves, and the groove penetrates through the side wall of the pile extractor (1).

10. A novel SMW method pile extractor backing plate device according to claim 1 or 8, characterized in that: An inclined or arc-shaped chamfer angle is provided at the inner concave corner of the "I" shape in the I-shaped groove (203).

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