Foundation pit diaphragm wall and steel enclosing purlin gap filling anti-pollution tool

Abstract

The utility model belongs to the field of foundation pit construction, and particularly relates to a foundation pit diaphragm wall and steel enclosing purlin gap filling anti-pollution tool which comprises an inverted-U-shaped thin plate, a handle is fixed on the upper surface of the inverted-U-shaped thin plate, a vertical supporting plate is fixed at the rear end of the left side of the inverted-U-shaped thin plate backwards, and the vertical supporting plate is integrally and vertically connected with a transverse supporting plate rightwards. A baffle is vertically fixed to the right end face of the transverse supporting plate, and a vertical scraper is vertically fixed to the rear end of the baffle. The tool is simple in structure, the problem that the steel enclosing purlin is polluted when the fine aggregate concrete is poured into the gap between the underground diaphragm wall and the steel enclosing purlin is solved, the later cleaning problem is avoided, meanwhile, the fine aggregate concrete in the gap can be synchronously stricken, and compared with an existing treatment mode, the construction efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of foundation pit construction, in particular to an anti-pollution tool for filling gaps between foundation pit ground-connected walls and steel surrounding purlins. Background Art

[0002] The foundation pits of subway stations are relatively deep, so ground-connected walls are often used as retaining structures. Ground-connected walls not only have high strength and stability, but also generate less noise and vibration during construction than traditional piling processes, making them very suitable for urban subway foundation pit excavation. There is a gap between the ground-connected wall and the steel purlins of the foundation pit. In order to ensure a firm connection between the steel purlins and the retaining structure and prevent leakage and deformation, fine stone concrete with a strength of not less than C30 is required to fill the gaps between the steel purlins of the ground-connected wall. Currently, most filling methods involve directly lowering a hose above the foundation pit to pour fine stone concrete into the gap between the ground-connected wall and the steel purlin, and then using a scraper to level it. The steel purlins are often contaminated during pouring, and manual cleaning is required later, resulting in low construction efficiency. Summary of the Invention

[0003] The problem to be solved by the present invention is to overcome the shortcomings of the background technology and provide an anti-pollution tool for filling the gaps between foundation pit ground-connected walls and steel purlins.

[0004] The present invention is achieved through the following technical solutions:

[0005] The cam is fixed on the left side of the U-shaped plate, and the bottom surface of the vertical support plate is flush with the upper surface of the steel purlin.

[0006] Preferably, the heights of the left and right sides of the inverted U-shaped thin plate are both 2-6 cm.

[0007] Preferably, the thickness of the left side plate and the right side plate of the inverted U-shaped thin plate are both 1-3 mm.

[0008] Preferably, the thickness of the vertical support plate is greater than the thickness of the wing plate of the steel purlin.

[0009] Preferably, the baffle is 50-80 cm long.

[0010] The anti-pollution tool for filling the gap between the foundation pit ground-connected wall and the steel perimeter purlin of the present invention has a simple structure, solves the problem of contamination of the steel perimeter purlin when pouring fine stone concrete into the gap between the ground-connected wall and the steel perimeter purlin, eliminates the problem of subsequent cleaning, and can also synchronously scrape the fine stone concrete in the gap, greatly improving the construction efficiency compared with the existing treatment method. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front structural diagram of the construction state of this embodiment;

[0012] Figure 2 This is a schematic diagram of the rear view structure of the embodiment in construction status;

[0013] Figure 3 This is a side view of the structure of the embodiment in construction status;

[0014] Figure 4 This is a schematic diagram of the overall structure of the tool in this embodiment;

[0015] Figure 5 This is a schematic diagram of the overall structure of another angle tool in this embodiment.

[0016] In the figure, 1 is the ground-connected wall, 2 is the steel purlin, 3 is the inverted U-shaped thin plate, 4 is the handle, 5 is the vertical support plate, 6 is the horizontal support plate, 7 is the baffle, 8 is the vertical scraper, 9 is the left side plate, 10 is the right side plate, and 11 is the hose. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0018] This embodiment includes an inverted U-shaped thin plate 3, which includes a left side plate 9, a right side plate 10 and an upper plate. The inverted U-shaped thin plate 3 can be made of thin iron plate. Preferably, the thickness of the left side plate 9 and the right side plate 10 of the inverted U-shaped thin plate 3 are both 1-3 mm. The distance between the left side plate 9 and the right side plate 10 of the inverted U-shaped thin plate 3 is equal to the width of the steel purlin 2, that is, the inverted U-shaped thin plate 3 can just be stuck on the steel purlin 2, and the left side plate 9 and the right side plate 10 are respectively located on both sides of the steel purlin 2, and the inverted U-shaped thin plate 3 can slide along the steel purlin 2. A handle 4 is fixed on the upper surface of the inverted U-shaped thin plate 3, and by pulling the handle 4, the inverted U-shaped thin plate 3 can be pulled to slide along the upper surface of the steel purlin 2. Since some steel pipe supports are connected between the steel purlins 2, in order to prevent the components on the steel purlins 2 from blocking the sliding of the inverted U-shaped thin plate 3, it is preferred that the left side plate 9 and the right side plate 10 of the inverted U-shaped thin plate 3 are 2-6 cm high. The left side plate 9 and the right side plate 10 are located at the upper part of the steel purlin 2 and will not be blocked by components such as steel pipe supports.

[0019] A vertical support plate 5 is fixed to the rear end of the left side of the inverted U-shaped thin plate 3. The bottom surface of the vertical support plate 5 is located on the upper surface of the steel purlin 2. The thickness of the vertical support plate 5 is greater than the thickness of the wing plate of the steel purlin 2. The vertical support plate 5 can slide along the upper surface of the left wing plate of the steel purlin 2. The upper part of the vertical support plate 5 is vertically connected to the horizontal support plate 6 to the right. The right end surface of the horizontal support plate 6 is vertically fixed to the baffle 7. The baffle 7 is fixed to the right rear end of the inverted U-shaped thin plate 3. The baffle 7 is used to prevent the fine stone concrete poured through the hose 11 from splashing onto the steel purlin 2. The preferred length of the baffle 7 is 50-80 cm. The side surface of the baffle 7 facing the ground-connected wall 1 is on the same vertical plane as the side surface of the steel purlin 2 facing the ground-connected wall 1. The bottom surface of the baffle 7 is flush with the bottom surface of the vertical support plate 5. The baffle 7 can slide along the upper surface of the right wing plate of the steel purlin 2.

[0020] A vertical scraper 8 is fixed to the rear end of the baffle 7. The vertical scraper 8 is perpendicular to the baffle 7 and abuts the grounding wall 1 to the right. The bottom surface of the vertical scraper 8 is flush with the upper surface of the steel purlin 2. The vertical scraper 8 is used to scrape the fine stone concrete poured into the gap to make it flush with the upper surface of the steel purlin 2.

[0021] During construction, first clean the gap between the ground-connected wall 1 and the steel purlin 2. It is necessary to clean up the dust, sand and other impurities between the ground-connected wall 1 and the steel purlin 2. Then, clamp the inverted U-shaped thin plate 3 on the steel purlin 2. At this time, the vertical support plate 5 is located on the upper surface of the wing plate on the left side of the steel purlin 2, and the baffle 7 is located on the upper surface of the wing plate on the right side of the steel purlin 2. Lower the hose 11 along the side wall of the ground-connected wall 1 from the top of the foundation pit. Connect the slurry pump to the upper end of the hose 11. Lower the hose 11 to the position of the baffle 7. The hose 11 is facing the gap between the ground-connected wall 1 and the steel purlin 2. Let the hose 11 The lower end is lower than the upper end of the baffle 7, and then fine stone concrete is poured into the gap through the hose 11. The baffle 7 will block the fine stone concrete and prevent it from contaminating the steel purlin 2. During the pouring, a worker slowly moves the hose 11 forward above the foundation pit, and at the same time, a worker below the foundation pit pulls the handle 4 to slowly slide the inverted U-shaped thin plate 3 forward along the steel purlin 2, thereby driving the baffle 7 to move with the hose 11, always protecting the steel purlin 2. When the inverted U-shaped thin plate 3 is pulled forward to slide, the vertical scraper 8 at the back will scrape the fine stone concrete poured in the gap flat.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tool for filling the gap between foundation pit diaphragm walls and steel purlins to prevent pollution, characterized by: The invention comprises an inverted U-shaped thin plate (3), wherein the distance between the left side plate (9) and the right side plate (10) of the inverted U-shaped thin plate (3) is equal to the width of the steel purlin (2), the inverted U-shaped thin plate (3) is clamped on the steel purlin (2), and the inverted U-shaped thin plate (3) can slide along the steel purlin (2), a handle (4) is fixed on the upper surface of the inverted U-shaped thin plate (3), and a vertical support plate (5) is fixed to the rear end of the left side of the inverted U-shaped thin plate (3), wherein the bottom surface of the vertical support plate (5) is located on the upper surface of the steel purlin (2), and the vertical support plate (5) is fixed to the rear end of the left side of the inverted U-shaped thin plate (3). A horizontal support plate (6) is integrally connected vertically to the right, and a baffle (7) is vertically fixed to the right end surface of the horizontal support plate (6). The baffle (7) is fixed together with the right rear end of the inverted U-shaped thin plate (3). The side surface of the baffle (7) facing the ground connection wall (1) and the side surface of the steel purlin (2) facing the ground connection wall (1) are on the same vertical plane. A vertical scraper (8) is vertically fixed to the rear end of the baffle (7). The vertical scraper (8) abuts against the ground connection wall (1) to the right, and the bottom surface of the vertical scraper (8) is flush with the upper surface of the steel purlin (2).

2. The anti-pollution tool for filling gaps between foundation pit diaphragm walls and steel purlins according to claim 1 is characterized by: The left side plate (9) and the right side plate (10) of the inverted U-shaped thin plate (3) are both 2-6 cm in height.

3. The anti-pollution tool for filling gaps between foundation pit diaphragm walls and steel purlins according to claim 1 is characterized by: The left side plate (9) and the right side plate (10) of the inverted U-shaped thin plate (3) both have a thickness of 1-3 mm.

4. The anti-pollution tool for filling gaps between foundation pit diaphragm walls and steel purlins according to claim 1 is characterized by: The thickness of the vertical support plate (5) is greater than the thickness of the wing plate of the steel purlin (2).

5. The anti-pollution tool for filling gaps between foundation pit diaphragm walls and steel purlins according to claim 1 is characterized by: The baffle (7) has a length of 50-80 cm.

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