Ground wall supporting system and method

Abstract

The invention discloses a ground wall supporting system and method, and belongs to the field of underground construction engineering. The ground wall supporting system comprises a vertical supporting structure, a top horizontal supporting structure, a bottom horizontal supporting structure and an inclined supporting system. The diagonal bracing system comprises a first hinge end, a second hinge end, a diagonal bracing beam standard knot, a servo mechanism, a hydraulic pump station and a control center; the servo mechanism comprises a hydraulic oil cylinder and a telescopic rod; the control center can control oil pressure in the hydraulic oil cylinder through the hydraulic pump station to achieve stretching and retracting of the telescopic rod. According to the underground wall supporting system, the vertical supporting structure close to the underground wall, the top horizontal supporting structure, the bottom horizontal supporting structure and other permanent structures of a basement are constructed firstly, a double-spliced frame structure capable of providing large counter force is formed, and a stable triangular supporting system is formed by arranging the inclined supporting system; and the deformation amount of the ground wall is actively intervened through a servo mechanism, so that the deformation amount of the ground wall is controlled within an allowable range.

Description

Technical Field

[0001] The invention relates to a ground wall support system and method, and belongs to the field of underground construction engineering. Background Art

[0002] Basement construction often involves excavation and support of foundation pits, such as using ground walls as enclosure structures, which will later serve as basement exterior walls. Before foundation pit development, through-hole horizontal beams are often used as horizontal supports for the ground walls. Because basement horizontal beams are reinforced concrete structures, they need to reach a predetermined strength before they can provide support. Moreover, for large basements, the length of the horizontal support beams can reach hundreds or even thousands of meters. If the horizontal support beams are through-holes before basement construction begins, the construction period will be extended. Summary of the Invention

[0003] In view of the problem that the use of through horizontal support beams as the support structure of the ground wall in existing basement construction has a long construction period, the present invention provides a ground wall support system and method, which can quickly form effective support for the ground wall and shorten the construction period.

[0004] In order to solve the above technical problems, the present invention includes the following technical solutions:

[0005] A ground wall support system includes a vertical support structure, a top horizontal support structure, a bottom horizontal support structure and a diagonal bracing system;

[0006] Three vertical support structures are provided, and the three vertical support structures are spaced apart in a direction perpendicular to the ground wall, one of the vertical support structures is close to the ground wall, and a top horizontal support structure and a bottom horizontal support structure are provided between adjacent vertical support structures to form a double frame structure;

[0007] The diagonal bracing system includes a first hinged end, a second hinged end, a standard section of the diagonal bracing beam, a servo mechanism, a hydraulic pump station, and a control center. The first hinged end, the second hinged end, the standard section of the diagonal bracing beam, and the servo mechanism are sequentially connected. The first hinged end is located on the inner side of the vertical support structure close to the ground wall, and the second hinged end is located on the bottom horizontal support structure. The servo mechanism includes a hydraulic cylinder and a telescopic rod.

[0008] The hydraulic pump station is connected to the hydraulic cylinder through an oil pipe. The control center can control the oil pressure in the hydraulic cylinder through the hydraulic pump station to realize the extension and retraction of the telescopic rod.

[0009] Furthermore, the vertical support structure, the top horizontal support structure, and the bottom horizontal support structure are all permanent structures of the basement.

[0010] Furthermore, the diagonal bracing system includes several diagonal bracing beam standard sections spliced ​​in sequence, one end of the diagonal bracing beam standard section is set as a hollow sleeve, and the other end of the diagonal bracing beam standard section is set as a sleeve rod, and the sleeve rod of the diagonal bracing beam standard section is inserted into the sleeve of the adjacent diagonal bracing beam standard section.

[0011] Furthermore, the first hinged end and the second hinged end each include a fixed end plate and a connecting ear plate arranged on one side of the fixed end plate, a pin hole is provided on the connecting ear plate, and a pin hole is also provided at one end of the standard section of the diagonal bracing beam, and the standard section of the diagonal bracing beam is connected to the connecting ear plate of the first hinged end through a pin shaft; the telescopic end of the telescopic rod is also provided with a pin hole, and the end of the telescopic rod is connected to the connecting ear plate of the second hinged end through a pin shaft.

[0012] Accordingly, the present invention provides a ground wall support method, which utilizes the ground wall support system to control ground wall deformation. The ground wall support method comprises the following steps:

[0013] S1. Construct three vertical basement support structures perpendicular to the ground wall, as well as top and bottom horizontal support structures between the vertical support structures to form a double frame structure.

[0014] S2. Install the diagonal bracing system. Install the first articulated end on the vertical support structure close to the ground wall, and the second articulated end on the bottom horizontal support structure. Then, install the standard diagonal bracing beam section and servo mechanism. Connect the hydraulic pump station to the hydraulic cylinder via oil pipes, and connect the control center to the hydraulic pump station signal.

[0015] S3. Collect the ground wall deformation △x, and the control center controls the hydraulic pump station to adjust the oil pressure and telescopic stroke of the servo mechanism to make △x < △x 允 , △x 允 The preset allowable deformation of the ground wall.

[0016] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the existing technology: the ground wall support system provided by the present invention forms a double-frame structure that can provide a large reaction force by first constructing the vertical support structure adjacent to the ground wall, the top horizontal support structure, the bottom horizontal support structure and other permanent structures of the basement, and further, by arranging a diagonal bracing system in the frame structure, the force system is converted into a stable triangular support system. The servo mechanism can also actively intervene in the deformation of the ground wall to control the deformation of the ground wall within the allowable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of a ground wall support system in one embodiment of the present invention;

[0018] Figure 2Schematic diagram of the structure of a standard section of a diagonal bracing beam in one embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of a servo mechanism in one embodiment of the present invention;

[0020] Figure 4 This is a schematic structural diagram of a first hinged end in one embodiment of the present invention;

[0021] Figure 5 Flowchart of a ground wall support method according to an embodiment of the present invention.

[0022] The numbers in the figure are as follows:

[0023] 1-ground wall; 2-vertical support structure; 3-top horizontal support structure; 4-bottom horizontal support structure; 5-diagonal bracing system;

[0024] 10-first hinged end; 101-fixed end plate; 102-connecting ear plate; 103-pin hole; 11-second hinged end; 12-standard section of diagonal bracing beam; 121-casing; 122-casing rod; 13-servo mechanism; 131-hydraulic cylinder; 132-telescopic rod; 133-casing rod; 14-hydraulic pump station; 15-control center. DETAILED DESCRIPTION

[0025] The following is a detailed description of the ground wall support system and method provided by the present invention, with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0026] Example 1

[0027] Combine Figures 1 to 4 As shown, this embodiment provides a ground wall support system for supporting the ground wall, thereby controlling the deformation of the ground wall 1. The ground wall support system includes a vertical support structure 2, a top horizontal support structure 3, a bottom horizontal support structure 4, and a diagonal bracing system 5. The vertical support structure 2, the top horizontal support structure 3, and the bottom horizontal support structure 4 are all permanent structures of the basement, and the ground wall 1 also serves as the basement exterior wall. Therefore, this embodiment provides support for the ground wall by first constructing a portion of the basement permanent structure adjacent to the ground wall, thereby controlling ground wall deformation. Diagonal bracing is also used to enhance deformation control capabilities.

[0028] There are three vertical support structures 2, which are spaced apart in a direction perpendicular to the ground wall. One of the vertical support structures is close to the ground wall. A top horizontal support structure and a bottom horizontal support structure are arranged between adjacent vertical support structures to form a double frame structure.

[0029] The diagonal bracing system 5 includes a first articulated end 10, a second articulated end 11, a standard diagonal bracing beam section 12, a servo mechanism 13, a hydraulic pump station 14, and a control center 15. The first articulated end 10, the second articulated end 11, the standard diagonal bracing beam section 12, and the servo mechanism 13 are sequentially connected. The first articulated end is positioned on the inner side of the vertical support structure, close to the ground wall, while the second articulated end is positioned on the bottom horizontal support structure. The servo mechanism 13 includes a hydraulic cylinder 131, a telescopic rod 132, and a travel measuring instrument. The hydraulic pump station 14 is connected to the hydraulic cylinder via an oil pipe. The control center 15 controls the oil pressure in the hydraulic cylinder through the hydraulic pump station, thereby extending and retracting the telescopic rod. The travel measuring instrument measures the extension and retraction stroke.

[0030] The ground wall support system provided in this embodiment can form a double-frame structure that can provide a large reaction force by first constructing a vertical support structure adjacent to the ground wall, a top horizontal support structure, a bottom horizontal support structure and other basement structures. In addition, by setting a diagonal bracing system in the frame structure, the force system is converted into a stable triangular support system, and the servo mechanism can also actively intervene in the deformation of the ground wall.

[0031] In one specific embodiment, the bracing system includes several sequentially connected bracing beam sections 12. One end of each section is provided with a hollow sleeve 121, and the other end is provided with a sleeve rod 122. The sleeve rod of each section inserts into the sleeve of an adjacent bracing beam section. This arrangement of bracing beam sections allows for rapid splicing to create the desired length, better suiting project requirements. A sleeve rod 133 is also provided at one end of the hydraulic cylinder, which inserts into the sleeve 121 of an adjacent bracing beam section 12, allowing for quick splicing of the hydraulic cylinder and bracing beam section 12.

[0032] In a specific embodiment, the first hinged end and the second hinged end each include a fixed end plate 101 and a connecting ear plate 102 arranged on one side of the fixed end plate 101, a pin hole 103 is provided on the connecting ear plate 102, and a pin hole is also provided at one end of the standard section of the diagonal bracing beam. The standard section of the diagonal bracing beam is connected to the connecting ear plate of the first hinged end through a pin shaft; the telescopic end of the telescopic rod is also provided with a pin hole, and the end of the telescopic rod is connected to the connecting ear plate of the second hinged end through a pin shaft.

[0033] Example 2

[0034] This embodiment provides a ground wall support method, using the ground wall support system described in embodiment 1, combined with Figures 1 to 5 As shown, the ground wall support method includes the following steps:

[0035] S1. Construct three vertical basement support structures perpendicular to the ground wall, as well as top and bottom horizontal support structures between the vertical support structures to form a double frame structure.

[0036] S2. Install the diagonal bracing system. Install the first articulated end on the vertical support structure close to the ground wall, and the second articulated end on the bottom horizontal support structure. Then, install the standard diagonal bracing beam section and servo mechanism. Connect the hydraulic pump station to the hydraulic cylinder via oil pipes, and connect the control center to the hydraulic pump station signal.

[0037] S3. Collect the ground wall deformation △x, and the control center controls the hydraulic pump station to adjust the oil pressure and telescopic stroke of the servo mechanism to make △x < △x 允 , △x 允 The preset allowable deformation of the ground wall.

[0038] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that a person skilled in the art would be able to make numerous modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A ground wall support system, characterized in that: It includes vertical support structure, top horizontal support structure, bottom horizontal support structure and diagonal support system; Three vertical support structures are provided, and the three vertical support structures are spaced apart in a direction perpendicular to the ground wall, one of the vertical support structures is close to the ground wall, and a top horizontal support structure and a bottom horizontal support structure are provided between adjacent vertical support structures to form a double frame structure; The diagonal bracing system includes a first hinged end, a second hinged end, a standard section of the diagonal bracing beam, a servo mechanism, a hydraulic pump station, and a control center. The first hinged end, the second hinged end, the standard section of the diagonal bracing beam, and the servo mechanism are sequentially connected. The first hinged end is located on the inner side of the vertical support structure close to the ground wall, and the second hinged end is located on the bottom horizontal support structure. The servo mechanism includes a hydraulic cylinder and a telescopic rod. The hydraulic pump station is connected to the hydraulic cylinder through an oil pipe. The control center can control the oil pressure in the hydraulic cylinder through the hydraulic pump station to realize the extension and retraction of the telescopic rod.

2. The ground wall support system according to claim 1, characterized in that: The vertical support structure, top horizontal support structure, and bottom horizontal support structure are all permanent structures of the basement.

3. The ground wall support system according to claim 1, characterized in that: The diagonal bracing system includes several diagonal bracing beam standard sections spliced ​​in sequence, one end of the diagonal bracing beam standard section is set as a hollow sleeve, and the other end of the diagonal bracing beam standard section is set as a sleeve rod, and the sleeve rod of the diagonal bracing beam standard section is inserted into the sleeve of the adjacent diagonal bracing beam standard section.

4. The ground wall support system according to claim 1, wherein: The first hinged end and the second hinged end each include a fixed end plate and a connecting ear plate arranged on one side of the fixed end plate, a pin hole is provided on the connecting ear plate, and a pin hole is also provided at one end of the standard section of the diagonal bracing beam. The standard section of the diagonal bracing beam is connected to the connecting ear plate of the first hinged end through a pin shaft; the telescopic end of the telescopic rod is also provided with a pin hole, and the end of the telescopic rod is connected to the connecting ear plate of the second hinged end through a pin shaft.

5. A ground wall support method, characterized in that: The ground wall support system according to any one of claims 1 to 4 is used to control ground wall deformation, and the ground wall support method comprises the following steps: S1. Construct three vertical basement support structures perpendicular to the ground wall, as well as top and bottom horizontal support structures between the vertical support structures to form a double frame structure. S2. Install the diagonal bracing system. Install the first articulated end on the vertical support structure close to the ground wall, and the second articulated end on the bottom horizontal support structure. Then, install the standard diagonal bracing beam section and servo mechanism. Connect the hydraulic pump station to the hydraulic cylinder via oil pipes, and connect the control center to the hydraulic pump station signal. S3. Collect the ground wall deformation △x, and the control center controls the hydraulic pump station to adjust the oil pressure and telescopic stroke of the servo mechanism to make △x < △x 允 , △x 允 The preset allowable deformation of the ground wall.

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