Composite supporting device for steel pipe grouting

Abstract

The utility model discloses a composite supporting device for steel pipe grouting, which comprises a foundation pit support, a supporting structure and a basement wall body, and the top of the foundation pit support is fixedly connected with a capping beam; the supporting structure comprises profile steel and a steel pipe, the left side of the coping beam is fixedly connected with a first concrete force transmission belt, the left side of the first concrete force transmission belt is fixedly connected with the profile steel, the profile steel penetrates through the basement wall, the profile steel is fixedly connected with a water stop steel plate, and the water stop steel plate is located at the intersection of the profile steel and the basement wall. The left side of the profile steel is fixedly connected with a butt-joint steel plate, the left side of the butt-joint steel plate is fixedly connected with a steel pipe, the left side of the steel pipe is fixedly connected with a second concrete force transmission belt, and the second concrete force transmission belt is fixedly connected with a basement wall.

Description

Technical Field

[0001] The utility model belongs to the technical direction of composite support devices, and specifically relates to a composite support device for steel pipe grouting. Background Art

[0002] With the continuous increase in the number of floors of modern buildings, the corresponding demand for parking facilities and underground usable space has also increased. Therefore, it has become inevitable to develop underground to seek space. The deep foundation pit support system has been vigorously developed, and a variety of deep foundation pit support technologies have emerged.

[0003] Traditional horizontal internal supports such as concrete supports cannot be used for large-scale excavation, and the construction and excavation period is long. The support removal is difficult, and the support stiffness and strength are low. This phenomenon has become a problem that needs to be solved urgently by people in this field. Therefore, a composite support device for steel pipe grouting is designed to effectively improve the support stiffness and strength. Utility Model Content

[0004] The utility model aims to provide a composite support device for steel pipe grouting in view of the existing device, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a composite support device for steel pipe grouting, comprising a foundation pit enclosure, a support structure and a basement wall, wherein a capping beam is fixedly connected to the top of the foundation pit enclosure;

[0006] The supporting structure includes steel sections and steel pipes. A concrete force transmission belt 1 is fixedly connected to the left side of the top beam, and the left side of the concrete force transmission belt 1 is fixedly connected to the steel section. The steel section passes through the basement wall. A waterstop steel plate is fixedly connected to the steel section, and the waterstop steel plate is located at the intersection of the steel section and the basement wall. A butt steel plate is fixedly connected to the left side of the steel section, and the left side of the butt steel plate is fixedly connected to the steel pipe. A concrete force transmission belt 2 is fixedly connected to the left side of the steel pipe, and the concrete force transmission belt 2 is fixedly connected to the basement wall.

[0007] The utility model further illustrates that the foundation pit enclosure is arranged on the right side of the basement wall, and the supporting structure is arranged inside the basement wall.

[0008] The utility model further illustrates that a concrete support is fixedly connected to the right side of the top beam, a support replacement plate belt is fixedly connected to the left side of the foundation pit enclosure, and the left side of the support replacement plate belt is fixedly connected to the basement wall.

[0009] The utility model further illustrates that a water-stop curtain is arranged on the right side of the foundation pit enclosure, and the water-stop curtain is fixedly connected to the top pressure beam.

[0010] The utility model further illustrates that a column pile is fixedly connected to the bottom of the concrete support, and the column pile passes through the bottom of the basement wall.

[0011] The utility model further illustrates that a grouting port is provided at the bottom of the steel pipe, and an observation port is provided at the top of the steel pipe.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model, by providing a support structure and a grouting port and adopting a quick-hardening and early-strengthening grouting material, can effectively improve the support stiffness and strength, reduce the support deformation, and provide favorable support for foundation pit enclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model after dismantling;

[0016] Figure 3 It is an enlarged schematic diagram of the A area of ​​the utility model;

[0017] In the figure: 1. foundation pit enclosure; 2. top pressure beam; 3. concrete force transfer belt 1; 4. steel section; 5. water-stop steel plate; 6. butt steel plate; 7. steel pipe; 8. concrete force transfer belt 2; 9. basement wall; 10. water-stop curtain; 11. column pile; 12. grouting port; 13. observation port; 14. concrete support; 15. replacement support plate belt. DETAILED DESCRIPTION

[0018] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0019] See also Figure 1-3 The utility model provides a technical solution: a composite support device for steel pipe grouting, including a foundation pit enclosure 1, a support structure and a basement wall 9, the foundation pit enclosure 1 is arranged on the right side of the basement wall 9, and the support structure is arranged inside the basement wall 9.

[0020] A capping beam 2 is fixedly connected to the top of the foundation pit enclosure 1, a concrete support 14 is fixedly connected to the right side of the capping beam 2, a support plate replacement belt 15 is fixedly connected to the left side of the foundation pit enclosure 1, and the left side of the support plate replacement belt 15 is fixedly connected to the basement wall 9.

[0021] The supporting structure includes steel sections 4 and steel pipes 7. A concrete force transmission belt 3 is fixedly connected to the left side of the top beam 2. The left side of the concrete force transmission belt 3 is fixedly connected to the steel section 4. The steel section 4 passes through the basement wall 9. A waterstop steel plate 5 is fixedly connected to the steel section 4. The waterstop steel plate 5 is located at the intersection of the steel section 4 and the basement wall 9. A butt steel plate 6 is fixedly connected to the left side of the steel section 4. The left side of the butt steel plate 6 is fixedly connected to the steel pipe 7. A concrete force transmission belt 2 8 is fixedly connected to the left side of the steel pipe 7. The concrete force transmission belt 2 8 is fixedly connected to the basement wall 9.

[0022] A water-stop curtain 10 is arranged on the right side of the foundation pit enclosure 1 , and the water-stop curtain 10 is fixedly connected to the top pressure beam 2 .

[0023] A column pile 11 is fixedly connected to the bottom of the concrete support 14 , and the column pile 11 passes through the bottom of the basement wall 9 to support the concrete support 14 .

[0024] A grouting port 12 is provided at the bottom of the steel pipe 7, and an observation port 13 is provided at the top of the steel pipe 7. The grouting port 12 is used for grouting, and the observation port 13 is used for observing the situation of the injected slurry.

[0025] Grouting uses fast-hardening and early-strengthening grouting materials, which can reach the target strength in a short time, improve the rigidity and strength of the supporting structure, and reduce the deformation of the supporting structure.

[0026] Working principle: After the basement construction is completed and before the first support is removed, the steel section 4 and the steel pipe 7 are spliced ​​and installed through the butt steel plate 6. After the installation is completed, grouting is injected into the steel pipe 7 through the grouting port 12. The grouting uses fast-hardening early-strengthening grouting material, which can reach the target strength in a short time, improve the rigidity and strength of the supporting structure, and reduce the deformation of the supporting structure. When the basement exterior wall is constructed, the steel section 4 is wrapped and poured as a whole. After the construction of the basement top plate and exterior wall is completed and reaches the designed strength, the steel section 4 is cut off from both sides of the exterior wall to achieve the purpose of not damaging the exterior wall.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A composite support device for steel pipe grouting, comprising a foundation pit enclosure (1), a support structure and a basement wall (9), characterized in that: A top pressure beam (2) is fixedly connected to the top of the foundation pit enclosure (1); The supporting structure comprises a steel section (4) and a steel pipe (7); a concrete force transmission belt (3) is fixedly connected to the left side of the top beam (2); the concrete force transmission belt (3) is fixedly connected to the steel section (4) on the left side; the steel section (4) passes through the basement wall (9); a water stop steel plate (5) is fixedly connected to the steel section (4); the water stop steel plate (5) is located at the intersection of the steel section (4) and the basement wall (9); a butt joint steel plate (6) is fixedly connected to the left side of the steel section (4); the butt joint steel plate (6) is fixedly connected to the steel pipe (7) on the left side; a concrete force transmission belt (8) is fixedly connected to the left side of the steel pipe (7); the concrete force transmission belt (8) is fixedly connected to the basement wall (9) on the left side.

2. A composite support device for steel pipe grouting according to claim 1, characterized in that: The foundation pit enclosure (1) is arranged on the right side of the basement wall (9), and the supporting structure is arranged inside the basement wall (9).

3. A composite support device for steel pipe grouting according to claim 2, characterized in that: The right side of the top beam (2) is fixedly connected to a concrete support (14), the left side of the foundation pit enclosure (1) is fixedly connected to a support replacement plate belt (15), and the left side of the support replacement plate belt (15) is fixedly connected to the basement wall (9).

4. A composite support device for steel pipe grouting according to claim 3, characterized in that: A water-stop curtain (10) is arranged on the right side of the foundation pit enclosure (1), and the water-stop curtain (10) is fixedly connected to the top beam (2).

5. A composite support device for steel pipe grouting according to claim 4, characterized in that: The bottom of the concrete support (14) is fixedly connected with a column pile (11), and the column pile (11) passes through the bottom of the basement wall (9).

6. A composite support device for steel pipe grouting according to claim 5, characterized in that: The bottom of the steel pipe (7) is provided with a grouting port (12), and the top of the steel pipe (7) is provided with an observation port (13).

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