A TAD method prefabricated sheet pile scraping wall combination device

Abstract

The utility model relates to the field of civil engineering construction, and in particular to a TAD method prefabricated sheet pile wall scraping assembly device, comprising: a sheet pile body, one side of which is provided with a side groove, and the other side of which is provided with a side convex strip; an eccentric lifting assembly, which is detachably mounted on the top surface of the sheet pile body; a mud scraping component, which is fixedly connected to the bottom surface of the sheet pile body, located on a side close to the side convex strip, and one side is flush with the outer side of the side convex strip; the lifting center of the eccentric lifting assembly is biased toward the side groove. The utility model can effectively control the spacing gap of the TAD method sheet pile joints during the construction process.

Description

Technical Field

[0001] The utility model relates to the field of civil engineering construction, in particular to a TAD method prefabricated sheet pile wall scraping combined device. Background Art

[0002] TAD method (Top-down Construction Method) is a method commonly used in underground structure construction. Its characteristics are that it starts from the surface and excavates layer by layer downwards, while supporting and constructing, and has the advantages of high efficiency, safety, and economy. The TAD method enclosure structure system has been widely used in subway protection, heritage protection, renovation and expansion of existing basements, basement foundation pits, underground pipe galleries and other underground space projects. In order to speed up the construction progress, the sheet piles are prepared in advance and constructed on site. However, there are the following problems in the construction process: At present, there is no effective control measure for the gap between the sheet pile joints in the actual construction of the sheet piles. The joint connection mainly relies on manual experience and lifting command. There is no corresponding device to control the distance between the sheet piles, so the gap between the sheet pile joints is large. Utility Model Content

[0003] The utility model aims to provide a TAD method prefabricated sheet pile wall scraping combined device to solve the above problems and effectively control the sheet pile joint spacing gap.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] A TAD method prefabricated sheet pile wall scraping combined device, comprising:

[0006] The sheet pile body has a side groove on one side and a side convex strip on the other side;

[0007] An eccentric lifting assembly is detachably mounted on the top surface of the sheet pile body;

[0008] A mud scraping component is fixedly connected to the bottom surface of the sheet pile body, located on a side close to the side convex strip, and one side is flush with the outer side of the side convex strip;

[0009] The lifting center of the eccentric lifting assembly is biased toward the side groove.

[0010] Preferably, the eccentric lifting assembly comprises a hanging plate, which is detachably connected to the top surface of the sheet pile body;

[0011] A hanging ear connected to the top surface of the hanging plate and having a center that does not coincide with the hanging plate;

[0012] The lifting lug is disposed toward the side groove.

[0013] Preferably, the scraper component comprises a scraper block, and the bottom end of the scraper block is provided with sharp corners, the sharp corners are two, one of which matches the side groove, and the other matches the side surface of the sheet pile body where the side groove is located.

[0014] Preferably, the hypotenuse of the scraper block is a concave arc structure.

[0015] Preferably, the side convex strip is a trapezoidal structure when viewed from above, and the short side of the trapezoidal structure is away from the sheet pile body.

[0016] Preferably, the trapezoidal structure is a regular trapezoid.

[0017] Preferably, the scraper block is made of metal.

[0018] The utility model has the following technical effects:

[0019] The sheet pile body is redesigned according to its appearance characteristics, and an eccentric lifting assembly is installed on the top of the sheet pile body so that the side convex strips can scrape the cement slurry in the groove position of the side of the sheet pile body in front of the wall.

[0020] A mud scraper is provided at the bottom of the sheet pile body to enhance the cement slurry removal effect at the opposite groove part and reduce the gap between the sheet pile bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is a schematic diagram of the lowering process of the sheet pile body of the utility model;

[0023] Figure 2 It is a partial enlarged view from another angle of the lowering process of the sheet pile body of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the top view of the sheet pile main body of the utility model;

[0026] Figure 5 This is a schematic diagram of the top view structure of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the scraper block of the utility model.

[0028] Among them, 1. sheet pile body; 101. side groove; 102. side convex strip; 1021. mud scraper; 2. hanging plate; 201. lifting ear. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference Figures 1 to 6 As shown, this embodiment provides a TAD method prefabricated sheet pile wall scraping assembly device, comprising:

[0032] The sheet pile body 1 has a side groove 101 on one side and a side convex strip 102 on the other side;

[0033] An eccentric lifting assembly is detachably mounted on the top surface of the sheet pile body 1;

[0034] The mud scraping component is fixedly connected to the bottom surface of the sheet pile body 1, located on a side close to the side convex strip 102, and one side is flush with the outer side of the side convex strip 102;

[0035] The lifting center of the eccentric lifting assembly is biased towards the side groove 101.

[0036] According to a further optimized solution, the eccentric lifting assembly includes a lifting plate 2, which is detachably connected to the top surface of the sheet pile body 1;

[0037] The lifting lug 201 is connected to the top surface of the hanging plate 2 and the center thereof does not coincide with the hanging plate 2;

[0038] The lifting lug 201 is disposed toward the side groove 101 .

[0039] According to a further optimization scheme, the scraper component includes a scraper block 1021 , and the scraper block 1021 has two sharp corners at its bottom end, one of which matches the side groove 101 , and the other matches the side of the sheet pile body 1 where the side groove 101 is located.

[0040] According to a further optimization scheme, the hypotenuse of the scraper block 1021 is a concave arc structure.

[0041] According to a further optimized solution, the side convex strip 102 is a trapezoidal structure when viewed from above, and the short side of the trapezoidal structure is far away from the sheet pile body 1.

[0042] The scheme is further optimized, and the trapezoidal structure becomes a regular trapezoid.

[0043] A metal plate is fixedly connected to the top surface of the sheet pile body 1, a plurality of screw holes are opened on the edge of the top surface of the metal plate, a plurality of screw through holes are opened on the hanging plate 2, the positions of the screw holes match the screw through holes, and the spacing between adjacent screw holes is the same. In the actual construction process, the eccentricity of the lifting ear 201 can be adjusted by adjusting the position of the metal plate and the hanging plate 2, so that the operation effect of the whole device is better.

[0044] In the construction process of this embodiment, after the first sheet pile body 1 is put into place, when the second sheet pile body 1 is put into place, since the lifting lug 201 is set towards the side groove 101, when the pile body 1 is lifted, the scraper block 1021 at the bottom thereof is lifted under the gravity of the whole pile body 1. Figure 1 Figure 2 As shown, one side of the side groove 101 close to the pile body 1 that has been lowered is tilted, and during the lowering process of the pile body 1, the scraper block 1021 is inserted into the side groove 101 of the pile body 1 that has been lowered. As the pile body 1 is lowered, the scraper block 1021 scrapes off the mud in the side groove 101 of the previous pile body 1 that has been placed. When the pile body 1 is about to be lowered into place, the scraper block 1021 can also play a positioning role to position the position of the pile body 1. During the process of continuing to be lowered, the pile body 1 can become a vertical state due to its own gravity. Since the mud between the side grooves 101 and the side convex strips 102 on adjacent sheet pile bodies 1 is reduced, the distance between adjacent pile bodies 1 can be effectively guaranteed to be smaller, thereby ensuring the matching accuracy between the pile bodies 1 during the construction process.

[0045] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A TAD method prefabricated sheet pile wall scraping assembly device, characterized in that: include: A sheet pile body (1) has a side groove (101) on one side and a side convex strip (102) on the other side; An eccentric lifting assembly, detachably mounted on the top surface of the sheet pile body (1); A mud scraping component, fixedly connected to the bottom surface of the sheet pile body (1), located on a side close to the side convex strip (102), and one side of which is flush with the outer side of the side convex strip (102); The lifting center of the eccentric lifting assembly is biased toward the side groove (101).

2. According to claim 1, a TAD method prefabricated sheet pile wall scraping assembly device is characterized in that: The eccentric lifting assembly comprises a lifting plate (2) which is detachably connected to the top surface of the sheet pile body (1); A lifting ear (201) connected to the top surface of the hanging plate (2) and having a center that does not coincide with the hanging plate (2); The lifting lug (201) is disposed toward the side groove (101).

3. According to claim 1, a TAD method prefabricated sheet pile wall scraping assembly device is characterized in that: The scraper component comprises a scraper block (1021), and the scraper block (1021) has two sharp corners at its bottom end, wherein the contour of one of the sharp corners matches the side groove (101), and the other sharp corner matches the side surface of the sheet pile body (1) where the side groove (101) is located.

4. The TAD prefabricated sheet pile wall scraping assembly device according to claim 3 is characterized by: The oblique edge of the scraper block (1021) is a concave arc structure.

5. A TAD prefabricated sheet pile wall scraping assembly device according to any one of claims 1 to 4, characterized in that: The side convex strip (102) is a trapezoidal structure when viewed from above, and the short side of the trapezoidal structure is away from the sheet pile body (1).

6. The TAD prefabricated sheet pile wall scraping assembly device according to claim 5 is characterized by: The trapezoidal structure is a regular trapezoid.

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