Reinforced connection node structure for connection between supporting piles

Abstract

A reinforced connection node structure used for connection between supporting piles comprises a round pipe wrapping a connection node between the supporting piles, the round pipe is connected with the supporting piles in a welded mode, a plurality of through holes are formed in the round pipe, bolts are arranged in the through holes in a penetrating mode, and the contact positions of the bolts and the supporting piles are connected in a welded and reinforced mode. Connection is reinforced through the plug pins, and the round pipe can be conveniently disassembled and assembled on the premise that the connection reliability can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit support, and particularly relates to a reinforced connection node structure for connecting between support piles. Background Art

[0002] During the excavation of the foundation pit, the deformation of the surrounding soil mass will inevitably occur, which will affect the surrounding buildings (structures) and underground pipelines. Seriously, it will endanger their normal use or safety. In order to avoid this situation, a support system will be added in the design and construction of deep foundation pits to stabilize the safety of the foundation pit. Currently, there are mainly three forms of support systems: horizontal support, inclined bracing, and reverse anchoring technology.

[0003] Horizontal support is currently widely used in deep foundation pits. However, the horizontal support occupies a large amount of space inside the pit, has a long construction period, is not conducive to earth excavation operations, and has great safety hazards due to stress release and the appearance of cantilevers during later demolition, which not only increases the project cost but also is not conducive to safety and environmental protection.

[0004] Inclined bracing is mostly used in the central island construction of super-large foundation pits. Compared with the horizontal support, the inclined bracing has more economic advantages, but stress soil bodies and construction joints must be reserved during construction, the procedures are cumbersome, the construction period is long, and it is difficult to demolish and process the structure later.

[0005] Reverse anchoring technology is a new technology promoted in recent years. The advantage of reverse anchoring is that the foundation pit is open and open, which is convenient for earth excavation and structure construction. However, it is easy to produce a group anchor effect, with a small safety factor and poor stability. The construction process is cumbersome and the period is long. Since the anchor body exceeds the land use red line, the land resources cannot be fully utilized.

[0006] There is a current inclined support pile structure for foundation pit enclosure, including retaining piles, capping beams, foundation pit bottom plates, building structures, inclined support piles, water stop devices, and soil improvement structures. The inclined support piles are obliquely implanted into the original soil below the foundation pit bottom plate at a certain angle; the top ends of the inclined support piles are fixedly connected to the top ends of the retaining piles and are embedded inside the capping beams to form an integral structure with the capping beams; soil improvement structures are fixed at the bottom ends and around the bottom ends of the inclined support piles; water stop devices are arranged on the inclined support piles at the penetration parts of the inclined support piles with the building structure and the foundation pit bottom plate. The inclined support piles can be connected into one body by means such as flanges, welding, pins, or screw connections. However, due to the current process of also rotating the inclined support piles, the current connection method has insufficient strength and it is easy for the support piles to come apart. Summary of the Invention

[0007] To solve the above problems existing in the current technology, the utility model provides a reinforced connection node structure for connecting between support piles, which can ensure connection reliability and is convenient for disassembly and assembly.

[0008] The technical solution adopted by the utility model is:

[0009] A reinforced connection node structure for connecting between support piles, comprising a circular tube wrapped outside the connection node between the support piles. The circular tube is welded to each support pile. A plurality of through holes are provided on the circular tube, and pins are inserted through the through holes and welded for reinforcement at the contact between the pins and the support piles. The utility model strengthens the connection through pins, which facilitates the disassembly and assembly of the circular tube on the premise of ensuring the connection reliability.

[0010] Further, the connection seam between the support piles is located in the middle of the circular tube, ensuring the lap reliability between the circular tube and each support pile.

[0011] Further, an annular weld seam is provided between the circular tube and each support pile.

[0012] Further, the annular weld seam is provided between the end of the circular tube and each support pile.

[0013] Further, the circular tube is a steel tube structure.

[0014] Further, a plurality of through holes are evenly distributed in a ring on the circular tube, ensuring the strength of the reinforced connection.

[0015] Further, a plurality of through holes are arranged on the circular tube along the same axis in the axial direction, and the number of through holes corresponding to each support pile is the same, ensuring the reliability of the reinforced connection between each support pile and the pin.

[0016] The beneficial effect of the utility model: Strengthen the connection through pins, which facilitates the disassembly and assembly of the circular tube on the premise of ensuring the connection reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the utility model.

[0018] Figure 2 is a schematic top view structural diagram of the utility model.

[0019] In the figure: 1, circular tube; 11, through hole; 2, support pile. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will further illustrate the present utility model with reference to specific embodiments, but the present utility model is not limited to these specific embodiments. Those skilled in the art should recognize that the present utility model covers all alternative solutions, improvement solutions, and equivalent solutions that may be included within the scope of the claims.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0022] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0024] See Figure 1 , Figure 2, this embodiment provides a reinforced connection node structure for connecting between support piles, including a circular tube 1 wrapped around the connection node between the support piles 2. The circular tube 1 is welded to each support pile 2. A plurality of through holes 11 are provided on the circular tube 1. A pin (not shown in the figure) is inserted through the through hole 11, and a reinforced connection is welded at the contact between the pin and the support pile 2. The utility model strengthens the connection through the pin, and facilitates the disassembly and assembly of the circular tube 1 on the premise of ensuring the connection reliability.

[0025] The connection seam between the support piles 2 in this embodiment is located in the middle of the circular tube 1, ensuring the lap reliability between the circular tube 1 and each support pile 2. An annular weld seam is provided between the circular tube 1 and each support pile 2. Specifically, the annular weld seam is provided between the end of the circular tube 1 and each support pile 2.

[0026] The circular tube 1 in this embodiment is a steel tube structure. The size of the circular tube 1 is set according to the size of the support pile 2. For example, if the support pile 2 adopts size, the circular tube 1 can adopt size.

[0027] A plurality of through holes 11 are evenly arranged in a ring on the circular tube 1 in this embodiment. Preferably, 4 through holes are arranged in a ring to ensure the strength of the reinforced connection. A plurality of through holes 11 are arranged on the circular tube 1 along the same axis in the axial direction, and the number of through holes corresponding to each support pile is the same, ensuring the reliability of the reinforced connection between each support pile 2 and the pin. For example, 2 through holes 11 are arranged on the same axis, and each support pile 2 corresponds to 1 through hole 11.

[0028] In the utility model, the circular tube 1 and the support pile 2 are welded together, and at the same time, the connection is strengthened by the pin, which facilitates the disassembly and assembly of the circular tube 1 on the premise of ensuring the connection reliability.

Claims

1. A reinforced connection node structure for connecting support piles, comprising a round tube covering the outside of the connection node between the support piles, wherein the round tube is welded to each support pile, and characterized in that: The circular tube is provided with a plurality of through holes, and plugs are inserted into the through holes and welded at the contact points between the plugs and the supporting piles to strengthen the connection.

2. A reinforced connection node structure for connecting support piles according to claim 1, characterized in that: The connection seam between the support piles is located in the middle of the circular tube.

3. A reinforced connection node structure for connecting support piles according to claim 1, characterized in that: An annular welding seam is arranged between the circular tube and each supporting pile.

4. A reinforced connection node structure for connecting support piles according to claim 3, characterized in that: The annular welding seam is arranged between the end of the circular tube and each supporting pile.

5. A reinforced connection node structure for connecting support piles according to claim 1, characterized in that: The round tube is a steel tube structure.

6. A reinforced connection node structure for connecting support piles according to claim 1, characterized in that: The circular tube is provided with a plurality of evenly distributed through holes.

7. A reinforced connection node structure for connecting support piles according to claim 6, characterized in that: The circular tube is provided with a plurality of through holes along the same axis line, and the number of the corresponding through holes on each supporting pile is the same.

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