An intelligent and practical deep foundation pit steel support

Abstract

The present invention provides an intelligent and practical deep foundation pit steel support, which relates to the field of deep foundation pit construction, including: an anti-corrosion steel pipe, wherein the left and right ends of the anti-corrosion steel pipe are connected with intelligent hydraulic active ends by connecting bolts, the other end of the intelligent hydraulic active end is connected to the side wall of the fixed end by connecting bolts, and the other side of the fixed end is clamped on the side wall of the connecting hanging plate, and two intelligent sensors are symmetrically arranged on the top of the side wall where the connecting hanging plate is connected to the fixed end, and a supporting angle steel is arranged at the bottom of the purlin. The steel support of the present invention is convenient and safe to install during the construction process, and is very practical for ultra-deep and ultra-wide foundation pits, especially for coastal deep-water foundation pit support systems with complex surrounding environments such as those near existing lines and high-rise buildings. It is widely used, has a fast installation speed, intuitive monitoring of the construction process, and safe dismantling. It is convenient to adjust and optimize the construction plan through data analysis, and solves the problems of unadjustable support length, easy falling of the hanging plate, and unsafe disassembly.

Description

Technical Field

[0001] The present invention relates to the technical field of deep foundation pit construction, and in particular to an intelligent and practical deep foundation pit steel support. Background Art

[0002] During the construction of deep foundation pits, the huge water and soil pressure around the foundation pit is difficult to be borne by the retaining structure alone. In order to control the deformation of the foundation pit, it is generally necessary to erect steel supports inside the foundation pit for support. The steel supports are mainly composed of flexible ends, standard section steel pipes, flanges and fixed ends.

[0003] However, as far as the currently available intelligent and practical deep foundation pit steel supports are concerned, the support length of the steel supports is limited in adjustable range and has poor adaptability, which is insufficient for use in deeper foundation pits. In addition, the end hanging plates are not firmly connected and are easy to fall off, posing a huge safety hazard. It is difficult and the accuracy of applying axial force is not high, and the axial force monitoring process is not timely. After the construction is completed, the clamp removal process is unsafe. Summary of the Invention

[0004] In view of this, the present invention provides an intelligent and practical deep foundation pit steel support, the anti-corrosion steel pipe of which is made of Q345 anti-corrosion steel, which has a better anti-rust effect than Q235 steel used in ordinary steel. The strength of the anti-corrosion steel pipe is higher, the safety factor is large, and the safety is better. At the same time, the anti-corrosion steel pipe is more suitable for use in coastal areas with strong air corrosion. The anti-corrosion steel pipe connects the high-strength flange with one end of the adjusting pipe and the intelligent hydraulic active end through the connecting bolts. The adjusting pipe and the intelligent hydraulic active end can improve the steel support to adapt to various widths of deep foundation pits. The ability of the pit can avoid the problem that the traditional steel support end needs to add a separate pad, which leads to low safety and difficulty in the construction and installation process. It can improve installation efficiency and increase safety. The high-strength flange is clamped by the fixed clamp of the clamp connector, so that the deformation caused by the horizontal axial force can be reduced when the anti-corrosion steel pipe is placed in a large span. By installing the arc-shaped clamp connector and the high-strength flange connection, the original rectangular clamp is replaced by a welding mode, which makes the construction safer and the disassembly process more convenient, thereby improving the efficiency of disassembly and installation.

[0005] The present invention provides an intelligent and practical deep foundation pit steel support purpose and function, which specifically includes: an anti-corrosion steel pipe, the left and right ends of the anti-corrosion steel pipe are connected to intelligent hydraulic active ends through connecting bolts, the other end of the intelligent hydraulic active end is connected to the side wall of the fixed end through connecting bolts, the other side of the fixed end is clamped on the side wall of the connecting hanging plate, two intelligent sensors are symmetrically arranged on the top of the side wall where the connecting hanging plate is connected to the fixed end, the connecting hanging plate is hung on the purlin fixedly installed on the wall, and a supporting angle steel is provided at the bottom of the purlin.

[0006] Furthermore, the anti-corrosion steel pipe is cylindrical, and high-strength flanges are welded on the left and right ends of the anti-corrosion steel pipe. The high-strength flanges are connected to the adjusting pipe and one end of the intelligent hydraulic flexible end through connecting bolts, and the telescopic end of the intelligent hydraulic flexible end is connected to the side wall of the fixed end.

[0007] Furthermore, the outer side of the high-strength flange is wrapped with a clamp connector, which is arc-shaped. Fixed clamps are provided on the left and right arc-shaped side walls of the clamp connector, and the fixed clamps are clamped on both sides of the high-strength flange.

[0008] Furthermore, a limiting ring is provided at the bottom of the side wall connecting the fixed end and the telescopic end of the intelligent hydraulic movable end, a cylindrical hanging column is provided in the middle of the other side wall of the fixed end, and the other end of the hanging column is connected to a round cake-shaped fixing plate.

[0009] Furthermore, an arc base is provided at the bottom of the side wall where the connecting hanging plate is connected to the fixed end head, the hanging column of the fixed end head is hung in the arc base, and a fixing groove is provided at the connection between the arc base and the side wall of the connecting hanging plate, and the fixing disk at one end of the hanging column is clamped in the fixing groove.

[0010] Furthermore, the top of the connecting hanging plate is in an inverted "U" shape, a connecting block is provided in the middle of the "U"-shaped bend of the connecting hanging plate, and two fixed plugs are symmetrically provided at the bottom of the other side wall of the connecting hanging plate.

[0011] Furthermore, the purlin is in the shape of an "I", and a connecting slot is provided on the top of the side wall where the purlin is connected to the connecting hanging plate, and the connecting block of the connecting hanging plate is clamped in the connecting slot. Two fixed slots are symmetrically provided in the upper end face of the purlin on the other side of the connecting slot, and the fixed plug-in block of the connecting hanging plate is inserted into the fixed slot.

[0012] Furthermore, the supporting angle steel is in the shape of a right-angled triangle, and a supporting block is provided on the top end face of the supporting angle steel. The lower end face of the purlin is clamped on the supporting block of the supporting angle steel and connected by fixing bolts. An angle groove is opened in the bottom side wall of the supporting angle steel, and the fixing bolts fix the supporting angle steel to the wall through the angle groove.

[0013] Beneficial effects

[0014] According to the various embodiments of the present invention, the foundation pit steel support anti-corrosion steel pipe is made of Q345 anti-corrosion steel, which has a better anti-rust effect than Q235 steel used in ordinary steel. The strength of the anti-corrosion steel pipe is higher, the safety factor is large, and the safety is better. At the same time, the anti-corrosion steel pipe is more suitable for use in coastal areas with strong air corrosion. The anti-corrosion steel pipe connects the high-strength flange with the adjusting pipe and one end of the intelligent hydraulic active end through the connecting bolts. The adjusting pipe and the intelligent hydraulic active end can improve the ability of the steel support to adapt to various widths and deep foundation pits, avoiding the problem that the traditional steel support end needs to add a separate pad, resulting in low safety and difficulty in the construction and installation process. It can improve installation efficiency and increase safety.

[0015] In addition, the extension of the telescopic end is adjusted by the hydraulic system of the intelligent hydraulic active end, and the maximum extension stroke is 200 mm. The hydraulic system of the intelligent hydraulic active end can apply pre-axial force to the steel support, making the application of safe axial force during construction more accurate. It is very suitable for areas in cities with densely populated houses near existing lines and high requirements for foundation pit deformation. The connecting hanging plate is convenient for the fixed end to be hung through the hanging column and the fixed plate by setting an arc base and opening a fixing groove, so as to improve the convenience of installation, make the supporting force of the fixed end uniform, reduce stress, and facilitate improve safety.

[0016] In addition, the high-strength flange is held by the fixed clamp of the clamp connector, so that the deformation caused by the horizontal axial force can be reduced when the anti-corrosion steel pipe is placed in a large span. By installing the arc-shaped clamp connector and the high-strength flange connection, the original rectangular clamp is replaced by a welding mode, which makes the construction safer and the disassembly process more convenient, thereby improving the efficiency of disassembly and installation.

[0017] In addition, the connecting hanging plate is hung in the connecting card slot and the fixing slot at the top of the purlin through the connecting card block and the fixing plug block, which ensures the convenience of installation of the connecting hanging plate while ensuring the stability of the hanging, thereby improving safety.

[0018] In addition, the steel support of the present invention is easy and safe to install during the construction process, and is very practical for ultra-deep and ultra-wide foundation pits. It is especially widely used in deep-water foundation pit support systems along the coast with complex surrounding environments, such as those near existing lines and high-rise buildings. It has fast installation speed, intuitive monitoring of the construction process, and safe dismantling. It is easy to adjust and optimize the construction plan through data analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0020] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached figure:

[0022] Figure 1 It is a schematic diagram of the right front axial structure of the foundation pit steel support according to an embodiment of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the foundation pit steel support from the right front side when viewed from above according to an embodiment of the present invention.

[0024] Figure 3 It is a schematic diagram of the overall split structure of the foundation pit steel support according to an embodiment of the present invention.

[0025] Figure 4 It is a schematic diagram of the overall split left front side upward structure of the foundation pit steel support of an embodiment of the present invention.

[0026] Figure 5 It is a schematic diagram of the split structure of the anti-corrosion steel pipe, intelligent hydraulic movable end, fixed end, connecting hanging plate and surrounding purlin of the foundation pit steel support according to an embodiment of the present invention.

[0027] Figure 6 It is a schematic diagram of the connection structure of the intelligent hydraulic movable end, clamp connector, fixed end, connecting hanging plate and surrounding purlin of the foundation pit steel support of an embodiment of the present invention.

[0028] Figure 7 It is a schematic diagram of the split structure of the intelligent hydraulic movable end, fixed end, connecting hanging plate, surrounding purlin and supporting angle steel of the foundation pit steel support according to an embodiment of the present invention.

[0029] Figure 8 It is a schematic diagram of the opening structure of the hoop connector of the foundation pit steel support according to an embodiment of the present invention.

[0030] Reference Signs List

[0031] 1. Anti-corrosion steel pipe; 101. High-strength flange; 2. Intelligent hydraulic flexible end; 3. Connecting bolt; 4. Fixed end; 401. Limiting ring; 402. Hanging column; 403. Fixed plate; 5. Connecting hanging plate; 501. Arc base; 502. Fixing groove; 503. Fixing plug; 504. Connecting block; 6. Intelligent sensor; 7. Purlin; 701. Connecting slot; 702. Fixing slot; 8. Fixing bolt; 9. Support angle steel; 901. Support block; 902. Angle groove; 10. Clamp connector; 1001. Fixing clamp. DETAILED DESCRIPTION

[0032] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0033] Example: Please refer to Figures 1 to 8 As shown:

[0034] The present invention provides an intelligent and practical deep foundation pit steel support, including an anti-corrosion steel pipe 1, the left and right ends of the anti-corrosion steel pipe 1 are connected to an intelligent hydraulic active end 2 by a connecting bolt 3, the other end of the intelligent hydraulic active end 2 is connected to the side wall of the fixed end 4 by a connecting bolt 3, the other side of the fixed end 4 is clamped on the side wall of the connecting hanging plate 5, and two intelligent sensors 6 are symmetrically arranged on the top of the side wall where the connecting hanging plate 5 is connected to the fixed end 4. The connecting hanging plate 5 is hung on a purlin 7 fixedly installed on the wall, and a supporting angle steel 9 is provided at the bottom of the purlin 7. The specific function is to fix the supporting angle steel 9 on the wall by a fixing bolt 8, and then clamp the lower end face of the purlin 7 on the supporting block 901 of the supporting angle steel 9 and connect it by a fixing bolt 8, and the connecting hanging plate 5 is connected by The connecting block 504 and the fixed plug block 503 are hung in the connecting slot 701 and the fixed slot 702 at the top of the purlin 7, ensuring the convenience of installation of the connecting hanging plate 5 while ensuring the stability of the hanging. The hanging column 402 of the fixed end 4 is hung in the arc base 501, and the fixed plate 403 at one end of the hanging column 402 is clamped in the fixed slot 502. The anti-corrosion steel pipe 1 connects the high-strength flange 101 with the adjusting pipe and one end of the intelligent hydraulic flexible end 2 through the connecting bolt 3. The adjusting pipe and the intelligent hydraulic flexible end 2 can improve the ability of the steel support to adapt to various widths and deep foundation pits. The high-strength flange 101 is held by the fixed clamp block 1001 of the clamp connector 10, so that when the anti-corrosion steel pipe 1 is placed in a large span, the deformation caused by the horizontal axial force can be reduced.

[0035] Among them, the anti-corrosion steel pipe 1 is cylindrical, and high-strength flanges 101 are welded on the left and right ends of the anti-corrosion steel pipe 1. The high-strength flange 101 is connected to the adjusting pipe and one end of the intelligent hydraulic active end 2 through connecting bolts 3, and the telescopic end of the intelligent hydraulic active end 2 is connected to the side wall of the fixed end 4. Specifically, the anti-corrosion steel pipe 1 is made of Q345 anti-corrosion steel, and its anti-rust effect is better than that of Q235 steel used in ordinary steel. The strength of the anti-corrosion steel pipe 1 is higher, the safety factor is large, and the safety is better. At the same time, the anti-corrosion steel pipe 1 is more suitable for use in coastal areas with strong air corrosion. The anti-corrosion steel pipe 1 connects the high-strength flange 101 to the adjusting pipe and one end of the intelligent hydraulic active end 2 through the connecting bolts 3. The adjusting pipe and the intelligent hydraulic active end 2 can improve the ability of the steel support to adapt to various widths of deep foundation pits, avoiding the problem that the traditional steel support end needs to add a separate pad, resulting in low safety and difficulty in the construction and installation process. It can improve installation efficiency and increase safety.

[0036] Among them, the outside of the high-strength flange 101 is wrapped with a clamp connector 10, which is arc-shaped. Fixed clamps 1001 are provided on the left and right arc-shaped side walls of the clamp connector 10. The fixed clamps 1001 are clamped on both sides of the high-strength flange 101. The specific function is to hold the high-strength flange 101 through the fixed clamps 1001 of the clamp connector 10, so that when the anti-corrosion steel pipe 1 is placed in a large span, the deformation caused by the horizontal axial force can be reduced. By installing the arc-shaped clamp connector 10 and connecting it with the high-strength flange 101, the original rectangular clamp is replaced by welding, which makes the construction safer and the disassembly process more convenient, thereby improving the efficiency of disassembly and installation.

[0037] Among them, a limiting ring 401 is provided at the bottom of the side wall where the fixed end 4 is connected to the telescopic end of the intelligent hydraulic movable end 2, a cylindrical hanging column 402 is provided in the middle of the other side wall of the fixed end 4, and the other end of the hanging column 402 is connected to a pancake-shaped fixing plate 403, and an arc base 501 is provided at the bottom of the side wall where the connecting hanging plate 5 is connected to the fixed end 4, the hanging column 402 of the fixed end 4 is hung in the arc base 501, and a fixing groove 502 is provided at the connection between the arc base 501 and the side wall of the connecting hanging plate 5, and the fixing plate 403 at one end of the hanging column 402 is clamped in the fixing groove 502. The hydraulic system of the hydraulically movable end 2 can adjust the elongation of the telescopic end, and the maximum elongation stroke is two hundred millimeters. The hydraulic system of the intelligent hydraulically movable end 2 can apply pre-axial force to the steel support, so that the application of safe axial force during construction is more accurate. It is very suitable for areas in cities with densely populated houses near existing lines and high requirements for foundation pit deformation. The connecting hanging plate 5 is convenient for the fixed end 4 to be hung through the hanging column 402 and the fixed plate 403 by setting an arc base 501 and opening a fixing groove 502, so as to improve the convenience of installation, make the supporting force of the fixed end 4 uniform, reduce stress, and facilitate improve safety.

[0038] Among them, the top of the connecting hanging plate 5 is in an inverted "U" shape, and a connecting block 504 is provided in the middle of the "U"-shaped bend of the connecting hanging plate 5, and two fixed plug-ins 503 are symmetrically provided at the bottom of the other side wall of the connecting hanging plate 5. The surrounding purlin 7 is in an "I" shape, and a connecting slot 701 is provided on the top of the side wall where the surrounding purlin 7 is connected to the connecting hanging plate 5. The connecting block 504 of the connecting hanging plate 5 is clamped in the connecting slot 701, and two fixed slots 702 are symmetrically provided in the upper end surface of the surrounding purlin 7 on the other side of the connecting slot 701, and the fixed plug-in block 503 of the connecting hanging plate 5 is inserted into the fixed slot 702. Specifically, the connecting hanging plate 5 is hung in the connecting slot 701 and the fixed slot 702 at the top of the surrounding purlin 7 through the connecting block 504 and the fixed plug-in block 503, which ensures the convenience of installation of the connecting hanging plate 5 while ensuring the stability of the hanging, thereby improving safety.

[0039] Among them, the supporting angle steel 9 is in the shape of a right-angled triangle, and a supporting block 901 is provided on the top end face of the supporting angle steel 9. The lower end face of the purlin 7 is clamped on the supporting block 901 of the supporting angle steel 9 and connected by a fixing bolt 8. An angle groove 902 is opened in the bottom side wall of the supporting angle steel 9, and the fixing bolt 8 fixes the supporting angle steel 9 to the wall through the angle groove 902. Specifically, the supporting angle steel 9 is fixed to the wall by the fixing bolt 8, so as to provide a more solid support for the purlin 7 through the triangular supporting angle steel 9, increase the stability and firmness of the purlin 7, and thus prevent the purlin 7 from falling.

[0040] Specific usage and function of this embodiment: In the present invention, the supporting angle steel 9 is first fixed to the wall by means of fixing bolts 8, and then the lower end face of the surrounding purlin 7 is clamped on the supporting block 901 of the supporting angle steel 9 and connected by fixing bolts 8, and the connecting hanging plate 5 is hung in the connecting slot 701 and the fixing slot 702 at the top of the surrounding purlin 7 by means of the connecting block 504 and the fixing plug block 503, ensuring the convenience of installation of the connecting hanging plate 5 while ensuring the stability of the hanging, the hanging column 402 of the fixed end head 4 is hung in the arc base 501, and the fixing plate 403 at one end of the hanging column 402 is clamped in the fixing groove 502, and the anti-corrosion steel pipe 1 connects the high-strength flange 101 with one end of the adjusting pipe and the intelligent hydraulic active end head 2 by means of the connecting bolts 3, and the steel support can be improved by means of the adjusting pipe and the intelligent hydraulic active end head 2. It has the ability to adapt to various widths and depths of foundation pits. The extension of the telescopic end is adjusted through the hydraulic system of the intelligent hydraulic active end 2, and the maximum extension stroke is two hundred millimeters. The hydraulic system of the intelligent hydraulic active end 2 can apply pre-axial force to the steel support, so that the application of safe axial force during construction is more accurate. It is very suitable for areas in cities with densely populated houses near existing lines and high requirements for foundation pit deformation. The high-strength flange 101 is clamped by the fixed clamp 1001 of the clamp connector 10, so that the deformation caused by the horizontal axial force can be reduced when the anti-corrosion steel pipe 1 is placed in a large span. The arc-shaped clamp connector 10 and the high-strength flange 101 are connected by installing a welding mode instead of the original rectangular clamp, which makes the construction safer and the disassembly process more convenient, thereby improving the efficiency of disassembly and installation.

[0041] Finally, it should be noted that when describing the positions of various components and the matching relationships between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such positions, matching relationships, etc. are also applicable to other components / other pairs of components.

[0042] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. An intelligent and practical deep foundation pit steel support, comprising: The invention relates to an anti-corrosion steel pipe (1), wherein both left and right ends of the anti-corrosion steel pipe (1) are connected to an intelligent hydraulic flexible end (2) through a connecting bolt (3), the other end of the intelligent hydraulic flexible end (2) is connected to the side wall of the fixed end (4) through the connecting bolt (3), the other side of the fixed end (4) is clamped on the side wall of the connecting hanging plate (5), two intelligent sensors (6) are symmetrically arranged on the top of the side wall where the connecting hanging plate (5) and the fixed end (4) are connected, a limiting ring (401) is arranged on the bottom of the side wall where the fixed end (4) and the telescopic end of the intelligent hydraulic flexible end (2) are connected, a cylindrical hanging column (402) is arranged in the middle of the other side wall of the fixed end (4), the other end of the hanging column (402) is connected to a round cake-shaped fixing plate (403), and the connecting hanging plate (5) is hung. On the purlin (7) fixedly mounted on the wall, a supporting angle steel (9) is provided at the bottom of the purlin (7), the top of the connecting hanging plate (5) is in an inverted "U" shape, a connecting block (504) is provided at the middle of the "U"-shaped bend of the connecting hanging plate (5), two fixed plug-in blocks (503) are symmetrically provided at the bottom of the other side wall of the connecting hanging plate (5), the purlin (7) is in an "I" shape, a connecting slot (701) is provided at the top of the side wall where the purlin (7) and the connecting hanging plate (5) are connected, the connecting block (504) of the connecting hanging plate (5) is clamped in the connecting slot (701), two fixed slots (702) are symmetrically provided in the upper end surface of the purlin (7) on the other side of the connecting slot (701), and the fixed plug-in blocks (503) of the connecting hanging plate (5) are plugged into the fixed slots (702).

2. The intelligent and practical deep foundation pit steel support according to claim 1, characterized in that: The anti-corrosion steel pipe (1) is cylindrical, and high-strength flanges (101) are welded to the left and right ends of the anti-corrosion steel pipe (1). The high-strength flanges (101) are connected to the regulating pipe and one end of the intelligent hydraulic flexible end (2) through connecting bolts (3). The telescopic end of the intelligent hydraulic flexible end (2) is connected to the side wall of the fixed end (4).

3. The intelligent and practical deep foundation pit steel support according to claim 2, characterized in that: The outer side of the high-strength flange (101) is wrapped with a clamp connector (10), which is arc-shaped. Fixed clamp blocks (1001) are provided on the left and right arc-shaped side walls of the clamp connector (10), and the fixed clamp blocks (1001) are clamped on both sides of the high-strength flange (101).

4. The intelligent and practical deep foundation pit steel support according to claim 1, characterized in that: A circular arc base (501) is provided at the bottom of the side wall where the connecting hanging plate (5) is connected to the fixed end head (4); a hanging column (402) of the fixed end head (4) is hung in the circular arc base (501); a fixing groove (502) is provided at the connection between the circular arc base (501) and the side wall of the connecting hanging plate (5); and a fixing plate (403) at one end of the hanging column (402) is clamped in the fixing groove (502).

5. The intelligent and practical deep foundation pit steel support according to claim 1, characterized in that: The supporting angle steel (9) is in the shape of a right-angled triangle. A supporting block (901) is provided on the top end face of the supporting angle steel (9). The lower end face of the surrounding purlin (7) is clamped on the supporting block (901) of the supporting angle steel (9) and connected via a fixing bolt (8). An angle groove (902) is provided in the bottom side wall of the supporting angle steel (9). The fixing bolt (8) fixes the supporting angle steel (9) to the wall via the angle groove (902).

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