Deep foundation pit supporting structure in collapsible loess area

Abstract

The utility model relates to the technical field of deep foundation pit supporting, and discloses a collapsible loess area deep foundation pit supporting structure which comprises a stand column, a wing plate and a transverse plate, a threaded groove is formed in the bottom end of the transverse plate, a ground cone is fixed to the bottom end of a limiting plate, barbs are fixed to the outer portion of the ground cone, and a second adsorption block is fixed to the top end of the threaded column. The threaded grooves are evenly distributed in the bottom of the transverse plate, and the first adsorption blocks are fixedly installed at the tops of the threaded grooves, so that the threaded columns and the threaded grooves are matched to form threaded locking after the threaded columns are operated in the working process, meanwhile, the limiting plates are fixed to the bottoms of the threaded columns, and the limiting plates are fixed to the bottoms of the threaded columns. Due to the fact that the barbs are evenly distributed on the outer portion of the transverse plate, the overall ground gripping capacity is well improved under the condition that the barbs are evenly distributed, and the overall bottom stability is well improved in the working process.

Description

Technical Field

[0001] The utility model relates to the technical field of deep foundation pit support, in particular to a deep foundation pit support structure in a collapsible loess area. Background Art

[0002] Collapsible loess areas refer to those areas where collapsible loess is distributed. Collapsible loess is a special type of soil. Under a certain pressure or after being soaked in water, its structure will be quickly destroyed and significant additional settlement will occur. This may cause the destruction of buildings. It belongs to special soil and is generally distributed in northern my country.

[0003] When carrying out construction work in these areas, it is also necessary to build deep foundation pits. Therefore, in order to protect the stability and safety of the foundation pits, deep foundation pit support structures will be used to prevent them from collapsing or deforming. However, since the collapsible loess areas have obvious collapsible phenomena, if the bottom position is unstable during support, subsequent collapse and other phenomena are likely to occur. Utility Model Content

[0004] The purpose of the utility model is to provide a deep foundation pit support structure in a collapsible loess area to solve the problem raised in the above background technology that since the collapsible loess area has obvious collapsible phenomenon, if the bottom position is unstable during support, subsequent collapse and the like are likely to occur.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deep foundation pit support structure in a collapsible loess area, comprising columns, wing plates, and cross plates, a threaded groove is provided inside the bottom end of the cross plate, a first adsorption block is fixed to the top end of the threaded groove, a threaded column is connected to the inside of the threaded groove, a limiting plate is fixed to the bottom end of the threaded column, a ground cone is fixed to the bottom end of the limiting plate, barbs are fixed to the outside of the ground cone, and a second adsorption block is fixed to the top end of the threaded column.

[0006] Preferably, two groups of the second adsorption blocks are fixed on the top of the threaded column, and an adsorption connection is formed between the first adsorption block and the second adsorption block.

[0007] Preferably, the thread grooves are evenly distributed in the bottom of the transverse plate, and a threaded connection is formed between the thread grooves and the threaded columns.

[0008] Preferably, the barbs are evenly distributed on the outside of the ground cone, and the length of the limiting plate is greater than the diameter of the thread groove.

[0009] Preferably, the outer side walls of the upright posts and the horizontal plate are coated with an anti-corrosion layer, and reinforcing rods are fixed inside the upright posts and the horizontal plate.

[0010] Preferably, the reinforcing rods are evenly distributed inside the upright posts and the cross plates, three groups of the upright posts are distributed on the top of the cross plates, and the wing plates are symmetrically distributed about the central axis of the upright posts.

[0011] Preferably, a reserved groove is opened inside the wing plate, an adjusting rod is inserted inside the reserved groove, a connecting plate is fixed to one end of the adjusting rod, a protective plate is fixed to one end of the connecting plate, a stop block is installed at the other end of the adjusting rod, and a buffer spring is connected to the outside of the adjusting rod.

[0012] Preferably, the reserved grooves are distributed in three groups inside the wing plate, the blocks are distributed symmetrically about the central axis of the adjustment rod, and the connecting plates are distributed symmetrically about the central axis of the wing plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the deep foundation pit support structure in the collapsible loess area not only improves the bottom stability, but also improves the front and rear protection capabilities and anti-corrosion capabilities of the deep foundation pit support structure;

[0014] (1) By evenly distributing the thread grooves at the bottom of the horizontal plate, the first adsorption block is fixed at the top of the thread groove. Therefore, after the thread column is operated during work, the thread column and the thread groove cooperate with each other to form thread locking. At the same time, a limit plate is fixed at the bottom of the thread column. Therefore, the limit plate serves the purpose of position limiting. In this way, multiple ground cones can be evenly distributed at the bottom of the horizontal plate. Since the barbs are evenly distributed on the outside of the horizontal plate, the overall gripping ability is better improved under the even distribution of the barbs, thereby better improving the overall bottom stability during work.

[0015] (2) By distributing the reserved grooves inside the wing plate, the left and right adjustment rods are connected to the front connection plate, while the middle adjustment rod is connected to the back connection plate. Buffer springs are connected to the front and rear positions. Therefore, after being compressed, the buffer springs can be elastically deformed. Therefore, the protective plate and the connection plate cooperate with each other to form front and rear protection, thereby better improving the overall front and rear protection capabilities during work;

[0016] (3) By applying the anti-corrosion layer on the outer walls of the columns and cross plates, the columns and cross plates have a certain anti-corrosion ability under the anti-corrosion layer coating. At the same time, reinforcing rods are evenly distributed inside the columns and cross plates. Therefore, the uniform distribution of reinforcing rods improves the overall strength of use, thereby improving the overall protection ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2This is a schematic diagram of the wing plate structure from a top view of the present utility model;

[0019] Figure 3 It is a schematic diagram of a partial top view cross-sectional structure of a column of the utility model;

[0020] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0021] In the figure: 1. column; 2. wing plate; 3. protective plate; 4. cross plate; 5. ground cone; 6. adjustment rod; 7. buffer spring; 8. connecting plate; 9. reserved groove; 10. block; 11. anti-corrosion layer; 12. reinforcement rod; 13. first adsorption block; 14. second adsorption block; 15. threaded column; 16. barb; 17. threaded groove. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4 The utility model provides an embodiment: a deep foundation pit supporting structure in a collapsible loess area, comprising a column 1, a wing plate 2, and a cross plate 4. A threaded groove 17 is provided inside the bottom end of the cross plate 4, a first adsorption block 13 is fixed to the top of the threaded groove 17, a threaded column 15 is connected to the inside of the threaded groove 17, a limiting plate is fixed to the bottom end of the threaded column 15, a ground cone 5 is fixed to the bottom end of the limiting plate, a barb 16 is fixed to the outside of the ground cone 5, and a second adsorption block 14 is fixed to the top of the threaded column 15.

[0024] Two groups of second adsorption blocks 14 are fixed on the top of the threaded column 15 , and an adsorption connection is formed between the first adsorption block 13 and the second adsorption block 14 .

[0025] The thread grooves 17 are evenly distributed in the bottom of the transverse plate 4 , and a threaded connection is formed between the thread grooves 17 and the threaded columns 15 .

[0026] The barbs 16 are evenly distributed outside the ground cone 5 , and the length of the limiting plate is greater than the diameter of the thread groove 17 .

[0027] The outer side walls of the upright column 1 and the horizontal plate 4 are coated with an anti-corrosion layer 11 , and reinforcing rods 12 are fixed inside the upright column 1 and the horizontal plate 4 .

[0028] The reinforcing rods 12 are evenly distributed inside the column 1 and the cross plate 4 . There are three groups of the column 1 at the top of the cross plate 4 . The wing plates 2 are symmetrically distributed about the central axis of the column 1 .

[0029] A reserved groove 9 is opened inside the wing plate 2, and an adjusting rod 6 is inserted inside the reserved groove 9. A connecting plate 8 is fixed to one end of the adjusting rod 6, and a protective plate 3 is fixed to one end of the connecting plate 8. A stopper 10 is installed at the other end of the adjusting rod 6, and a buffer spring 7 is connected to the outside of the adjusting rod 6.

[0030] The reserved grooves 9 are distributed in three groups inside the wing plate 2, the stoppers 10 are symmetrically distributed about the central axis of the adjustment rod 6, and the connecting plates 8 are symmetrically distributed about the central axis of the wing plate 2;

[0031] Further, the anti-corrosion layer 11 is coated on the outer side walls of the column 1 and the horizontal plate 4, and a waterproof layer can be added as needed to form a complete protection, making it more suitable for application in collapsible loess areas;

[0032] Furthermore, connecting plates 8 are distributed at the front and rear positions of the wing plate 2, wherein the connecting plate 8 at the front end is connected by two adjusting rods 6, while the connecting plate 8 at the back end is connected by the middle adjusting rod 6, thereby forming front and rear protection.

[0033] Working principle: First, during operation, the anti-corrosion layer 11 is coated on the outer walls of the column 1 and the cross plate 4. Therefore, under the coating of the anti-corrosion layer 11, the column 1 and the cross plate 4 have a certain anti-corrosion ability. At the same time, the reinforcing rods 12 are evenly distributed inside the column 1 and the cross plate 4 to form enhanced protection. Then the thread grooves 17 are evenly distributed at the bottom of the cross plate 4, and the first adsorption block 13 is installed and fixed at the top of the thread groove 17. After operating the thread column 15, the thread column 15 and the thread groove 17 cooperate with each other to form a threaded locking, and multiple ground cones 5 are evenly distributed at the bottom of the cross plate 4. Since the barbs 16 are evenly distributed on the outside of the cross plate 4, the ground cones 5 are fully in contact with the ground soil under the even distribution of the barbs 16, thereby completing the grip work.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A deep foundation pit support structure in a collapsible loess area, comprising a column (1), a wing plate (2), and a cross plate (4), characterized in that: A thread groove (17) is provided inside the bottom end of the horizontal plate (4), a first adsorption block (13) is fixed to the top end of the thread groove (17), a thread column (15) is connected to the inside of the thread groove (17), a limit plate is fixed to the bottom end of the thread column (15), a ground cone (5) is fixed to the bottom end of the limit plate, a barb (16) is fixed to the outside of the ground cone (5), and a second adsorption block (14) is fixed to the top end of the thread column (15).

2. A deep foundation pit support structure in collapsible loess areas according to claim 1, characterized in that: Two groups of the second adsorption blocks (14) are fixed on the top of the threaded column (15), and an adsorption connection is formed between the first adsorption block (13) and the second adsorption block (14).

3. The deep foundation pit support structure in collapsible loess area according to claim 1 is characterized by: The thread grooves (17) are evenly distributed in the bottom of the transverse plate (4), and a threaded connection is formed between the thread grooves (17) and the threaded columns (15).

4. The deep foundation pit support structure in collapsible loess area according to claim 1 is characterized by: The barbs (16) are evenly distributed outside the ground cone (5), and the length of the limit plate is greater than the diameter of the thread groove (17).

5. The deep foundation pit support structure in collapsible loess area according to claim 1 is characterized by: The outer side walls of the upright posts (1) and the cross plates (4) are coated with an anti-corrosion layer (11), and reinforcing rods (12) are fixed inside the upright posts (1) and the cross plates (4).

6. A deep foundation pit support structure in collapsible loess areas according to claim 5, characterized in that: The reinforcing rods (12) are evenly distributed inside the upright column (1) and the cross plate (4); three groups of the upright column (1) are distributed at the top of the cross plate (4); and the wing plates (2) are symmetrically distributed about the central axis of the upright column (1).

7. The deep foundation pit support structure in collapsible loess area according to claim 1 is characterized by: A reserved groove (9) is provided inside the wing plate (2), an adjusting rod (6) is inserted inside the reserved groove (9), a connecting plate (8) is fixed to one end of the adjusting rod (6), a protective plate (3) is fixed to one end of the connecting plate (8), a stopper (10) is installed at the other end of the adjusting rod (6), and a buffer spring (7) is connected to the outside of the adjusting rod (6).

8. The deep foundation pit support structure in collapsible loess area according to claim 7 is characterized by: The reserved grooves (9) are distributed in three groups inside the wing plate (2), the stoppers (10) are distributed symmetrically about the central axis of the adjustment rod (6), and the connecting plates (8) are distributed symmetrically about the central axis of the wing plate (2).

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