Basement outer wall thread expanding body steel pile water stopping device

Abstract

The utility model provides a basement exterior wall thread expanding body steel pile water stopping device which comprises a basement exterior wall and a thread expanding body steel pile, the thread expanding body steel pile obliquely penetrates through the basement exterior wall, and the thread expanding body steel pile comprises a hydraulic power head, a profile steel connecting part and a thread expanding body. The output end of the hydraulic power head is connected with one end of the profile steel connecting part through a first flange, the other end of the profile steel connecting part is connected with one end of the thread expanding body through a second flange, and part of the profile steel connecting part is arranged in the basement outer wall in an embedded mode. A water stop steel plate is welded to the position, corresponding to the embedded position, of the profile steel connecting part in the circumferential direction. In this way, integral pouring of the basement outer wall is achieved, the integrality of the basement outer wall is improved, and meanwhile the water stopping effect of the basement outer wall is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of basement outer wall water-stopping equipment, in particular to a basement outer wall thread enlarged body steel pile water-stopping device. Background Art

[0002] With the rapid development of the construction industry, the development of underground space has been continuously strengthened, the scale of foundation pits and the depth of excavation have further increased, and the difficulty of underground engineering construction has also increased accordingly. Water leakage often occurs in basements, and the leakage is more serious in places where holes are drilled in the outer wall. The current water-stopping form is mainly sealed with an outer water-stop ring, and concrete self-waterproofing is used to plug leaks on the inside. Due to the uneven performance of plugging products and the technical level of operators, it brings a greater risk of leakage to construction. Especially after several years of immersion, leakage problems outside the warranty period are prone to occur, which brings great inconvenience to the normal use of the later building.

[0003] Threaded expanded steel piles are a new type of oblique support technology in the field of foundation pit engineering. As they are not restricted by red lines, have low cost, are formed in one go, are recyclable, have high construction efficiency, are stable and high-load bearing, and are quiet and environmentally friendly, they have become a common process to replace internal support in foundation pit engineering. At present, the conventional threaded expanded steel pile water-stopping form is a welded water-stop plate on the outside of the steel pipe, and concrete self-waterproofing and leak-proofing is used on the inside. The inner concrete is generally poured before the exterior wall construction, and the integrity of the connection with the exterior wall concrete is poor, which is easy to cause leakage problems. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a basement outer wall threaded enlarged steel pile water stopping device which has a simple structure, effectively improves the waterproof performance, and strengthens the integrity of the outer wall.

[0005] The main contents of the utility model include: a basement outer wall and a threaded enlarged steel pile, wherein the threaded enlarged steel pile obliquely penetrates the basement outer wall.

[0006] The threaded enlarged body steel pile includes a hydraulic power head, a steel connection part, and a threaded enlarged body. The output end of the hydraulic power head is connected to one end of the steel connection part through a first flange, and the other end of the steel connection part is connected to one end of the threaded enlarged body through a second flange. Part of the steel connection part is embedded in the outer wall of the basement, and a water-stop steel plate is circumferentially welded at the corresponding embedding position of the steel connection part.

[0007] Preferably, the steel connection portion is made of I-shaped steel.

[0008] Preferably, a grouting steel pipe is welded to one side of the steel section connection portion, and the end of the grouting steel pipe extends to the interior of the threaded expansion body.

[0009] Preferably, the outer wall of the steel section connection portion is bound with double-layer reinforcement ribs.

[0010] Preferably, a plurality of steel bars are arranged inside the outer wall of the basement.

[0011] The beneficial effects of the utility model are as follows: the application utilizes a steel structure portion to penetrate the outer wall of the basement, so that the outer wall of the basement can be cast as a whole, and there is no hollow structure inside, which effectively improves the integrity and anti-leakage properties of the outer wall of the basement; a water-stopping steel plate is welded to the outer wall of the steel structure portion, which effectively extends its water seepage path and improves the overall water-stopping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the implementation effect structure of a preferred embodiment;

[0013] Figure 2 This is a schematic diagram of the basement exterior wall structure of a preferred embodiment;

[0014] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0015] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of the middle BB;

[0016] Reference numerals:

[0017] 1. Exterior wall of basement; 2. Threaded enlarged steel pile; 21. Hydraulic power head; 22. Steel connection; 23. Threaded enlarged body; 24. First flange; 25. Second flange; 26. Waterstop steel plate; 27. Grouting steel pipe; 28. Double-layer reinforcement ribs; 29. ​​Steel bars. DETAILED DESCRIPTION

[0018] The technical solution protected by the utility model is described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 As shown, the present application provides a basement outer wall threaded enlarged steel pile water-stopping device, which includes a basement outer wall 1 and a threaded enlarged steel pile 2, and the threaded enlarged steel pile 2 obliquely penetrates the basement outer wall 1.

[0020] like Figure 1-2As shown, the threaded enlarged steel pile 2 includes a hydraulic power head 21 that can be disassembled or assembled, a steel connection part 22, and a threaded enlarged body 23. Before formal construction, the steel pile is segmented to facilitate transportation of the steel pile; during construction, two adjacent structural sections are connected to each other through flanges to form a steel pile as a whole, thereby ensuring the reliability of the steel pile as a whole during operation. Specifically, the output end of the hydraulic power head 21 is fixedly connected to the end of the steel connection part 22 through a first flange 24, and the end of the steel connection part 22 away from the hydraulic power head 21 is fixedly connected to the end of the threaded enlarged body 23 through a second flange 25.

[0021] like Figure 1-4 As shown, the steel connection part 22 is correspondingly set to an I-shaped structure, and its part corresponds to obliquely penetrate the basement outer wall 1. When the basement outer wall 1 is poured with cement, it can be poured as a whole, which effectively improves the integrity of the basement outer wall 1, makes the basement outer wall 1 have no hollow structure inside, reduces leakage, improves the water-stopping effect and enhances the structural strength of the basement outer wall 1.

[0022] like Figure 1-4 As shown, a water-stopping steel plate 26 is welded to the outer wall of the steel connection portion 22 corresponding to the outer wall 1 of the basement, which can effectively extend the water seepage path and further improve the water-stopping effect.

[0023] like Figure 3 As shown, the steel connection part 22 is tied with double-layer reinforcement ribs 28 corresponding to the outer wall of the basement outer wall 1. The I-shaped structure arranged corresponding to the steel connection part 22 makes the tying process of the double-layer reinforcement ribs 28 more convenient, and the tying area between the double-layer reinforcement ribs 28 and the steel connection part 22 is larger, and the connection relationship between the two is closer, which can effectively improve the strength of the basement outer wall 1. A plurality of steel bars 29 are arranged inside the basement outer wall 1. The steel bars interact with the concrete poured in the later stage, which is conducive to improving the structural strength of the basement outer wall 28 and the durability of the steel bars.

[0024] like Figure 1-4 As shown, a grouting steel pipe 27 is welded to one side of the steel connection part 22 , and the end of the grouting steel pipe 27 extends along the outer wall of the steel connection part 22 to the threaded expansion body 23 to ensure the feasibility of subsequent grouting of the threaded expansion body 23 .

[0025] Working steps:

[0026] 1. Before construction, the threaded enlarged body steel pile 2 is segmented along the length direction, so as to be divided into a hydraulic power head 21, a steel connection part 22 and a threaded enlarged body 23;

[0027] Second, the steel pipe is used to replace the steel connection part 22, and the two ends of the steel pipe are respectively connected between the hydraulic power head 21 and the threaded enlarged body 23 through the first flange 24 and the second flange 25 to form a stable steel pile structure;

[0028] 3. With the cooperation of the excavator, the fully automatic hydraulic screwing machine lifts the threaded enlarged steel pile 2 to the designed pile position, and uses the long arm to tilt the threaded enlarged steel pile 2 to the designed angle before drilling and construction;

[0029] 4. After the threaded expanded steel pile 2 is drilled to the designed elevation and inclination angle, the fully automatic hydraulic screwing machine will reversely screw it out until the middle steel pipe is completely passed through the outer wall, and the steel pipe and flange will be removed.

[0030] 5. Replace the steel pipe with the steel connection part 22. The two ends of the steel connection part 22 are connected to the hydraulic power head 21 and the threaded enlarged body 23 through the first flange 24 and the second flange 25 respectively. After the connection, continue drilling normally.

[0031] 6. After drilling to the designed elevation, conduct final drilling inspection, pull out, complete the drilling construction of the threaded pile, and start the construction of the next threaded enlarged steel pile;

[0032] 7. When the foundation pit is excavated to the bottom of the pit and the outer wall is constructed, the water stop steel plate 26 is welded on the outside of the steel connection part 22 and the double-layer reinforcement ribs 28 are tied, and then the outer wall is cast as a whole;

[0033] 8. After the exterior wall is poured, cut out the threaded expanded steel piles from the exterior wall to the base plate area.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A basement outer wall thread enlarged steel pile water stopping device, characterized in that: Mainly include: The basement outer wall and the threaded enlarged steel pile, the threaded enlarged steel pile obliquely penetrates the basement outer wall, The threaded enlarged body steel pile includes a hydraulic power head, a steel connection part and a threaded enlarged body. The output end of the hydraulic power head is connected to one end of the steel connection part through a first flange, and the other end of the steel connection part is connected to one end of the threaded enlarged body through a second flange. Part of the steel connection part is embedded in the outer wall of the basement, and a water-stop steel plate is circumferentially welded at the corresponding embedding position of the steel connection part.

2. A basement external wall thread enlarged steel pile water stopping device according to claim 1, characterized in that: The steel connection portion is made of I-shaped steel.

3. A basement external wall thread enlarged steel pile water stopping device according to claim 1, characterized in that: A grouting steel pipe is welded to one side of the steel section connection portion, and the end of the grouting steel pipe extends to the interior of the threaded expansion body.

4. A basement external wall thread enlarged steel pile water stopping device according to claim 1, characterized in that: The outer wall of the steel connection portion is bound with double-layer reinforcement ribs.

5. The basement external wall thread enlarged steel pile water stopping device according to claim 1 is characterized in that: A plurality of steel bars are arranged inside the outer wall of the basement.

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