Full-prefabricated diaphragm wall intelligent servo supporting device and construction method

Abstract

The invention discloses a full-prefabricated diaphragm wall intelligent servo supporting device and a construction method, and belongs to the technical field of diaphragm wall supporting. According to the full-prefabricated diaphragm wall intelligent servo supporting device and the construction method, the mounting plate is assembled above a prefabricated diaphragm wall structure, so that the adjustable supporting assembly and the switchable supporting face assembly can smoothly complete erecting operation, overall stability is kept, meanwhile, a second electric hydraulic rod pushes a driving disc and a driving base to move, and the whole supporting face is adjusted. When the prefabricated diaphragm wall structure deforms, the roller is extruded by the prefabricated diaphragm wall structure, the first piston is pushed back, the second piston and the driving rod are hydraulically driven to move, and the supporting panel can abut against the prefabricated diaphragm wall structure, so that the prefabricated diaphragm wall structure can be supported, and the problem of collapse caused by deformation of the prefabricated diaphragm wall structure is prevented; and secondly, all the structures are connected with one another, so that the supporting stability can be effectively achieved, multiple positions can be synchronously supported, the construction difficulty is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ground-connected wall support, and in particular to a fully prefabricated ground-connected wall intelligent servo support device and a construction method. Background Art

[0002] As an advanced underground structure, fully prefabricated diaphragm walls are widely used in deep foundation pit support projects. They are made of prefabricated components and have the advantages of fast construction speed, controllable quality, and high bearing capacity. However, under complex geological conditions and surrounding environments, the construction and mechanical performance of fully prefabricated diaphragm walls face many challenges. Especially in soft soil foundation pits, due to the influence of soft soil creep and the "time and space effect" of the foundation pit, the deformation control of the foundation pit has become a major problem.

[0003] Traditional foundation pit support methods, such as pit construction, enhanced enclosure stiffness, and support stiffness, often fail to achieve ideal control effects. Servo support technology, as a new type of foundation pit support method, integrates high-tech means such as electromechanical and hydraulic integrated automatic control technology, computer information processing technology, and visual monitoring system. Servo support technology can effectively control foundation pit deformation and improve the stability and safety of the support structure by applying prestress to the enclosure structure in real time, dynamically, and actively, and automatically controlling the support axial force in a timely manner according to the parameter values ​​measured by high-precision sensors.

[0004] However, at present, in the existing technical system, many fully prefabricated ground-connected wall support projects generally follow the traditional process of excavating the earth and then assembling and erecting steel supports. This approach faces a series of challenges, such as bottlenecks such as long construction periods and the need to improve the level of automation. Not only does it lead to low construction efficiency and directly extend the overall construction period of the project, it may also pose a potential threat to the quality of support construction and increase the risk of exposure of unsupported soil in the foundation pit. More importantly, the existing support methods have limitations in support area and it is difficult to efficiently cover large areas, which undoubtedly brings many inconveniences to extensive and effective support operations. Therefore, exploring more efficient, intelligent and adaptable support technologies has become the key to improving the overall effectiveness of fully prefabricated ground-connected wall support projects. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above-mentioned and / or existing problems of the existing ground-connected wall supports, the present invention is proposed.

[0007] Therefore, the technical problem to be solved by the present invention is that in the existing technical system, many fully prefabricated ground-connected wall support projects generally follow the traditional process of excavating earth and then assembling and erecting steel supports, which has bottleneck problems such as a long construction period and the need to improve the level of automation. Not only does it lead to low construction efficiency, it may also pose a potential threat to the quality of support construction and increase the risk of exposure of unsupported soil in the foundation pit. More importantly, the existing support method has limitations in support area and it is difficult to cover a large area efficiently, which undoubtedly brings many inconveniences to carrying out extensive and effective support operations.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: a fully prefabricated ground-connected wall intelligent servo support device, comprising a prefabricated ground-connected wall support mechanism, wherein the prefabricated ground-connected wall support mechanism is assembled between two prefabricated ground-connected wall structures;

[0009] The prefabricated ground-connected wall support mechanism includes a mounting and driving assembly, which is mounted above the two prefabricated ground-connected wall structures, and an adjustable support assembly is arranged below the mounting and driving assembly;

[0010] Adjustment components are arranged on both sides of the adjustable support component, and a plurality of driving components are arranged on one side of the adjustment component. A switchable support surface component is mounted on the driving component, and the switchable support surface component is arranged on the prefabricated ground-connected wall structure.

[0011] As a further solution of the present invention: the installation and driving assembly includes a mounting plate, both sides of the mounting plate are respectively fixed on the top of two prefabricated ground-connected wall structures by mounting bolts, and a plurality of lifting rings are fixedly installed on the top of the mounting plate.

[0012] As a further solution of the present invention: the adjustable support assembly comprises a top plate and a plurality of support tubes, a first electric hydraulic rod is installed through the top plate and the mounting plate, and the bottom end of the first electric hydraulic rod is installed on the uppermost support tube;

[0013] The front and rear sides of the support tube are fixedly connected with guide rails, the front multiple guide rails and the rear multiple guide rails are respectively hinged to the two first telescopic frames, and the upper ends of the two first telescopic frames are also hinged to the top plate.

[0014] As a further solution of the present invention: a first sliding block is slidably provided in the guide rail, and a plurality of first sliding blocks at the front and a plurality of first sliding blocks at the rear are respectively hinged to the two first telescopic frames.

[0015] As a further solution of the present invention: sliding grooves are provided on both the front and rear sides of the top plate, a second sliding block is slidably connected in the sliding groove, and the second sliding block is hinged to the first telescopic frame.

[0016] As a further solution of the present invention: the adjustment assembly includes a second telescopic frame, and a ring portion is provided in the middle of each cross arm of the second telescopic frame, the two ring portions are sleeved on one end of the support tube, and the two ring portions are provided between the disc and the limit ring.

[0017] As a further solution of the present invention: the driving assembly includes a fixed disk, the fixed disk located in the middle is fixedly connected to the disc, and the fixed disks located on both sides are respectively hinged to the front end point and the rear end point of the second telescopic frame;

[0018] A second electric hydraulic rod is fixedly mounted on one side of the fixed plate, one end of the second electric hydraulic rod is fixedly connected to a driving plate, and one side of the driving plate is fixedly connected to a driving seat.

[0019] As a further solution of the present invention: the switchable supporting surface assembly includes three piston cylinders, which are fixedly mounted on a driving seat, and the piston cylinder is a U-shaped structure. A first piston is arranged inside the piston cylinder, and a connecting rod is fixedly connected to one side of the first piston. The connecting rod passes through one end of the piston cylinder and is rotatably mounted with a roller.

[0020] As a further solution of the present invention: a second piston is also provided inside the piston cylinder, a spring is fixedly connected to one side of the second piston, one end of the spring is fixedly connected to the inner wall of the piston cylinder, a drive rod is fixedly connected to one side of the second piston, and three drive rods pass through the other end of the piston cylinder and are fixedly connected to the support panel.

[0021] A construction method of a fully prefabricated ground-connected wall intelligent servo support device comprises the following steps:

[0022] S1. Before the prefabricated ground-connected wall structure is supported, the prefabricated ground-connected wall structure is first embedded in the ground. After embedding, the mounting plate is installed on the top of the prefabricated ground-connected wall structure by means of mounting bolts, so that the switchable support surface assembly is located between the prefabricated ground-connected wall structures;

[0023] S2, then excavate the space between the prefabricated ground-connected wall structures;

[0024] S3. When the excavation pit depth increases, the second electric hydraulic rod is retracted, so that the second electric hydraulic rod drives the driving plate and the driving seat to move, so that the displacement of the support panel is kept in contact with the prefabricated ground-connected wall structure. At this time, the spring drives the second piston to reset, so that the second piston presses the liquid inside the piston cylinder to the other end, so that the first piston drives the connecting rod to move, and the connecting rod drives the roller to contact the prefabricated ground-connected wall structure;

[0025] S4, when the roller successfully contacts the prefabricated ground-connected wall structure, the first electric hydraulic rod pushes the support pipe downward to make the first telescopic frame unfold downward, and then the first telescopic frame drives the support pipe below to unfold downward in sequence through the first slider and the guide rail, and the support pipe drives the switchable support surface assembly to move downward through the driving assembly, and at the same time, the downward movement of the support pipe also drives the second telescopic frame to unfold downward, so that the switchable support surface assemblies located on the front and rear sides move relatively;

[0026] S5. When the support panel moves downward to a position close to the excavated foundation pit surface, the second electric hydraulic rod is controlled to push the drive plate and the drive seat to move, so that the roller is squeezed by the prefabricated ground-connected wall structure and retracts, causing the connecting rod to push back the first piston. At this time, the second piston is hydraulically controlled to move, so that the second piston drives the support panel to move through the drive rod, so that the support panel is pressed against the prefabricated ground-connected wall structure, and then the excavation operation is continued. In this way, each time a section of excavation is carried out, the length of the support panel is continued to be extended to support the prefabricated ground-connected wall structure.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The fully prefabricated ground-connected wall intelligent servo support device and construction method, by assembling the mounting plate above the prefabricated ground-connected wall structure, the adjustable support assembly and the switchable support surface assembly can smoothly complete the erection operation and maintain the overall stability. At the same time, the second electric hydraulic rod pushes the drive plate and the drive seat to move, so that the roller is squeezed by the prefabricated ground-connected wall structure and the first piston is pushed back. Then, the second piston and the drive rod are driven by hydraulic pressure to move, so that the support panel can be pressed against the prefabricated ground-connected wall structure, thereby supporting the prefabricated ground-connected wall structure and preventing the prefabricated ground-connected wall structure from deforming and causing collapse. Secondly, the structures are connected to each other, so as to effectively support the stability, and multiple locations can be supported simultaneously, thereby reducing the construction difficulty and improving the construction efficiency.

[0029] 2. The fully prefabricated ground-connected wall intelligent servo support device and construction method drives the support pipe to move downward through the first electric hydraulic rod, so that the support pipe can drive the first telescopic frame to unfold downward through the guide rail and the first slider, so that the remaining support pipes can unfold downward in sequence, and then the middle support panel can move downward. At the same time, the support pipe also drives the second telescopic frame to unfold, so that the second telescopic frame drives the support panels on the front and rear sides to move relative to each other. Therefore, after the spacing between the support panels in the middle is increased, the support points can be increased through the relative movement of the support panels on both sides, ensuring the stable support of the prefabricated ground-connected wall structure. In addition, this method can be adjusted downward in sequence after each excavation section to extend the support surface, thereby greatly improving the convenience of construction, effectively reducing the risk time of exposure of unsupported soil, and ensuring construction safety.

[0030] 3. The fully prefabricated ground-connected wall intelligent servo support device and construction method drives the switchable support surface component to retract through the driving component, so that the support panel is displaced and a small distance is generated between the support panel and the prefabricated ground-connected wall structure. At this time, the spring drives the second piston to reset, and the first piston is hydraulically driven to reset, so that the first piston drives the roller to contact the prefabricated ground-connected wall structure. At this time, the adjustable support component can smoothly extend downward in length. This process can effectively reduce the friction resistance between the support panel and the prefabricated ground-connected wall structure to ensure smooth operation. In addition, the displacement of the support panel reduces the tightness effect of the prefabricated ground-connected wall structure. This effect can still maintain the supporting effect of the support panel on the prefabricated ground-connected wall structure, which can effectively reduce the deformation problem of the prefabricated ground-connected wall structure. Secondly, the pulley contacts the prefabricated ground-connected wall structure not only to assist in the adjustment, but also to squeeze the pulley to quickly tighten the support panel again when it is subjected to force impact, thereby effectively reducing safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0032] Figure 1 A structural schematic diagram of the connection between a prefabricated ground ditch wall support mechanism and a prefabricated ground ditch wall in a fully prefabricated ground ditch wall intelligent servo support device described in an embodiment of the present invention.

[0033] Figure 2 A three-dimensional structural schematic diagram of a prefabricated ground-connected wall bracing mechanism in a fully prefabricated ground-connected wall intelligent servo support device described in an embodiment of the present invention.

[0034] Figure 3 A three-dimensional structural schematic diagram of an adjustable bracing assembly in a fully prefabricated ground-connected wall intelligent servo support device according to an embodiment of the present invention.

[0035] Figure 4 A three-dimensional structural schematic diagram of the installation and driving components in a fully prefabricated ground-connected wall intelligent servo support device described in an embodiment of the present invention.

[0036] Figure 5 In the embodiment of the present invention, a fully prefabricated ground-connected wall intelligent servo support device is provided Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0037] Figure 6 A schematic structural diagram of the connection between an adjustment component and a drive component in a fully prefabricated ground-connected wall intelligent servo support device according to an embodiment of the present invention.

[0038] Figure 7 A schematic diagram of the three-dimensional structure of a second telescopic frame in a fully prefabricated ground-connected wall intelligent servo support device described in an embodiment of the present invention.

[0039] Figure 8 A schematic structural diagram of the connection between a drive assembly and a switchable support surface assembly in a fully prefabricated ground-connected wall intelligent servo support device according to an embodiment of the present invention.

[0040] Fig. 9 A three-dimensional structural schematic diagram of a switchable support surface component in a fully prefabricated ground-connected wall intelligent servo support device described in an embodiment of the present invention.

[0041] Fig.10 A three-dimensional structural schematic diagram of a driving assembly in a fully prefabricated ground-connected wall intelligent servo support device according to an embodiment of the present invention.

[0042] Fig.11 A schematic structural diagram of a three-dimensional cross-section of a piston cylinder in a fully prefabricated ground-connected wall intelligent servo support device described in an embodiment of the present invention.

[0043] In the figure: 100, prefabricated ground-connected wall structure; 200, prefabricated ground-connected wall support mechanism; 201, installation and drive assembly; 2011, installation plate; 2012, lifting ring; 2013, first electric hydraulic rod; 202, adjustable support assembly; 2021, support pipe; 2022, guide rail; 2023, first telescopic frame; 2024, first slider; 2025, top plate; 2026, slide; 2027, second slider; 203, switchable support surface assembly; 2031 , piston cylinder; 2032, support panel; 2033, second piston; 2034, spring; 2035, first piston; 2036, connecting rod; 2037, roller; 2038, drive rod; 204, adjustment assembly; 2041, second telescopic frame; 2042, annular portion; 2043, disc; 2044, limiting ring; 205, drive assembly; 2051, second electric hydraulic rod; 2052, fixed disk; 2053, drive disk; 2054, drive seat. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0046] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0047] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0048] Example 1

[0049] like Figure 1-Figure 4 and Figure 8-Figure 11 As shown, the present invention provides a technical solution: a fully prefabricated ground-connected wall intelligent servo support device, comprising a prefabricated ground-connected wall support mechanism 200, the prefabricated ground-connected wall support mechanism 200 is assembled between two prefabricated ground-connected wall structures 100;

[0050] The prefabricated ground-connected wall support mechanism 200 includes an installation and driving component 201, which includes a mounting plate 2011. Both sides of the mounting plate 2011 are fixed to the top of two prefabricated ground-connected wall structures 100 by mounting bolts. The mounting plate 2011 is installed on the prefabricated ground-connected wall structure 100 by mounting bolts, so as to fix the whole structure and ensure the stability of the whole structure. A plurality of lifting rings 2012 are fixedly installed on the top of the mounting plate 2011, and a lifting device can be connected through the lifting rings 2012, so that the lifting device can lift the prefabricated ground-connected wall structure 100 support mechanism through the lifting rings 2012 for construction. The installation and driving component 201 is assembled on the top of the two prefabricated ground-connected wall structures 100, and an adjustable support component 202 is arranged below the installation and driving component 201.

[0051] Adjustment components 204 are provided on both sides of the adjustable support component 202, and a plurality of drive components 205 are provided on one side of the adjustment component 204. The drive component 205 includes a fixed plate 2052, and the fixed plate 2052 located in the middle is fixedly connected to the disc 2043, and the fixed plates 2052 located on both sides are respectively hinged to the front end point and the rear end point of the second telescopic frame 2041. A second electric hydraulic rod 2051 is fixedly installed on one side of the fixed plate 2052, and the second electric hydraulic rod 2051 can push the drive plate 2053 and the drive seat 2054 to move, so that the switchable support surface component 203 can be smoothly pressed against On the prefabricated ground-connected wall structure 100, one end of the second electric hydraulic rod 2051 is fixedly connected to a driving disc 2053, one side of the driving disc 2053 is fixedly connected to a driving seat 2054, and a switchable support surface assembly 203 is mounted on the driving assembly 205. The switchable support surface assembly 203 includes three piston cylinders 2031, which are fixedly mounted on the driving seat 2054, and the piston cylinder 2031 is a U-shaped structure. A first piston 2035 is arranged inside the piston cylinder 2031. Through the driving force of the driving assembly 205, the roller 2037 can be squeezed with the prefabricated ground-connected wall structure 100 to The first piston 2035 drives the second piston 2033 to move through the hydraulic pressure, so that the second piston 2033 drives the support panel 2032 to press against the prefabricated ground-connected wall structure 100 through the driving rod 2038, thereby ensuring the stability of the support. A connecting rod 2036 is fixedly connected to one side of the first piston 2035. The connecting rod 2036 passes through one end of the piston cylinder 2031 and is rotatably installed with a roller 2037. A second piston 2033 is also arranged inside the piston cylinder 2031. A spring 2034 is fixedly connected to one side of the second piston 2033. The spring 2034 has a reset force, so that the spring 2034 drives the second piston 2033 to move. The piston 2033 is reset, so that the second piston 2033 drives the first piston 2035 to move through the hydraulic pressure, so that the first piston 2035 drives the roller 2037 to contact the prefabricated ground-connected wall structure 100 through the connecting rod 2036, thereby assisting the switchable support surface assembly 203 to be smoothly adjusted. One end of the spring 2034 is fixedly connected to the inner wall of the piston cylinder 2031, and one side of the second piston 2033 is fixedly connected to the driving rod 2038, and the three driving rods 2038 pass through the other end of the piston cylinder 2031 and are fixedly connected to the supporting panel 2032. The switchable support surface assembly 203 is arranged on the prefabricated ground-connected wall structure 100.

[0052] In this embodiment, by assembling the mounting plate 2011 above the prefabricated ground-connected wall structure 100, the adjustable support assembly 202 and the switchable support surface assembly 203 can smoothly complete the erection operation and maintain overall stability. At the same time, the second electric hydraulic rod 2051 pushes the drive plate 2053 and the drive seat 2054 to move, so that the roller 2037 is squeezed by the prefabricated ground-connected wall structure 100 and pushes back the first piston 2035. The second piston 2033 and the drive rod 2038 are driven by hydraulic pressure to move, so that the support panel 2032 can be pressed against the prefabricated ground-connected wall structure 100, thereby supporting the prefabricated ground-connected wall structure 100 and preventing the prefabricated ground-connected wall structure 100 from deforming and causing collapse. Secondly, the structures are interconnected, which can effectively support the stability, and can simultaneously support multiple locations, reducing construction difficulty and improving construction efficiency.

[0053] Example 2

[0054] Combination Figure 4-Figure 7 , it is concluded that the adjustable support assembly 202 includes a top plate 2025 and a plurality of support tubes 2021, the top plate 2025 and the mounting plate 2011 are penetrated by a first electric hydraulic rod 2013, the support tube 2021 is extended by the first electric hydraulic rod 2013 to move downward, and is unfolded by the first telescopic frame 2023, so that the remaining support tubes 2021 are smoothly unfolded downward, thereby increasing the support area of ​​the switchable support surface assembly 203, the bottom end of the first electric hydraulic rod 2013 is installed on the topmost support tube 2021, the front and rear sides of the support tube 2021 are fixedly connected with guide rails 2022, the front plurality of guide rails 2022 and the rear plurality of guide rails 2022 are respectively hinged to the two first telescopic frames 2023, and the first telescopic frame 2023 can move the support tube 2021 through the first slider 2024 and the guide rails 2022 2021 are connected together, so that the second telescopic frame 2041 can be extended and retracted to drive the support pipe 2021 to move synchronously, the upper ends of the two first telescopic frames 2023 are also hinged between the top plate 2025, and a first slider 2024 is slidably provided in the guide rail 2022, and the first slider 2024 can slide smoothly in the guide rail 2022, so that the first telescopic frame 2023 can be smoothly extended and retracted, and the multiple first sliders 2024 in the front and the multiple first sliders 2024 in the rear are respectively hinged to the two first telescopic frames 2023, and the front and rear sides of the top plate 2025 are provided with a slide groove 2026, and the slide groove 2026 is slidably connected with a second slider 2027, and the second slider 2027 can slide in the slide groove 2026, so that the first telescopic frame 2023 can be smoothly extended and retracted, and the second slider 2027 is hinged to the first telescopic frame 2023;

[0055] The adjustment component 204 includes a second telescopic frame 2041, and a ring portion 2042 is provided in the middle of each cross arm of the second telescopic frame 2041. The two ring portions 2042 are sleeved on one end of the support tube 2021, and the two ring portions 2042 are arranged between the disc 2043 and the limiting ring 2044. The ring portion 2042 can rotate on the support tube 2021 so that the second telescopic frame 2041 can be smoothly extended and retracted. At the same time, the ring portion 2042 is limited by the disc 2043 and the limiting ring 2044 to ensure stability.

[0056] In this embodiment: the first electric hydraulic rod 2013 drives the support tube 2021 to move downward, so that the support tube 2021 can drive the first telescopic frame 2023 to expand downward through the guide rail 2022 and the first slider 2024, so that the remaining support tubes 2021 can be expanded downward in turn, and then the middle support panel 2032 can move downward, and at the same time, the support tube 2021 also drives the second telescopic frame 2041 to expand, so that the second telescopic frame 2041 drives the support panels 2032 on the front and rear sides to move relative to each other, so that after the spacing between the middle support panels 2032 increases, the support points can be increased through the relative movement of the support panels 2032 on both sides, ensuring the stable support of the prefabricated ground-connected wall structure 100, and this method can be adjusted downward in turn after each excavation to extend the support surface, thereby greatly improving the construction convenience, effectively reducing the risk time of exposure of unsupported soil, and ensuring construction safety.

[0057] Example 3

[0058] Combination Figure 2 and Fig.11 , it is concluded that: both sides of the adjustable support component 202 are provided with adjustment components 204, one side of the adjustment component 204 is provided with multiple driving components 205, and the driving component 205 is equipped with a switchable support surface component 203, and the switchable support surface component 203 includes three piston cylinders 2031, and the three piston cylinders 2031 are fixedly installed on the driving seat 2054, and the piston cylinder 2031 is a U-shaped structure, and a first piston 2035 is arranged inside the piston cylinder 2031, and a connecting rod 2036 is fixedly connected to one side of the first piston 2035, and the connecting rod 203 6 passes through one end of the piston cylinder 2031 and is rotatably mounted with a roller 2037. A second piston 2033 is further arranged inside the piston cylinder 2031. A spring 2034 is fixedly connected to one side of the second piston 2033. One end of the spring 2034 is fixedly connected to the inner wall of the piston cylinder 2031. A driving rod 2038 is fixedly connected to one side of the second piston 2033. The three driving rods 2038 pass through the other end of the piston cylinder 2031 and are fixedly connected to the supporting panel 2032. The switchable supporting surface assembly 203 is arranged on the prefabricated ground-connected wall structure 100.

[0059] In this embodiment, the switchable support surface assembly 203 is retracted by the driving assembly 205, so that the support panel 2032 is displaced and a small distance is generated between the support panel 2032 and the prefabricated ground-connected wall structure 100. At this time, the spring 2034 drives the second piston 2033 to reset, and the first piston 2035 is hydraulically driven to reset, so that the first piston 2035 drives the roller 2037 to contact the prefabricated ground-connected wall structure 100. At this time, the adjustable support assembly 202 can smoothly extend downward. This process can effectively reduce the distance between the support panel 2032 and the prefabricated ground-connected wall structure. The friction resistance between the structure 100 can ensure the smooth operation, and the displacement of the supporting panel 2032 can reduce the pressing effect on the prefabricated ground-connected wall structure 100, which can still maintain the supporting effect of the supporting panel 2032 on the prefabricated ground-connected wall structure 100, and can effectively reduce the deformation problem of the prefabricated ground-connected wall structure 100. Secondly, the pulley contacting the prefabricated ground-connected wall structure 100 not only plays an auxiliary adjustment role, but also can squeeze the pulley to quickly press the supporting panel 2032 again when it is subjected to force impact, thereby effectively reducing safety risks.

[0060] A construction method of a fully prefabricated ground-connected wall intelligent servo support device comprises the following steps:

[0061] S1. Before the prefabricated ground-connected wall structure 100 is supported, the prefabricated ground-connected wall structure 100 is first pre-buried in the ground. After the pre-buried is completed, the mounting plate 2011 is installed on the top of the prefabricated ground-connected wall structure 100 by means of mounting bolts, so that the switchable support surface assembly 203 is located between the prefabricated ground-connected wall structures 100;

[0062] S2, then excavating the space between the prefabricated ground-connected wall structures 100;

[0063] S3. When the excavation pit depth increases, the second electric hydraulic rod 2051 is retracted, so that the second electric hydraulic rod 2051 drives the driving plate 2053 and the driving seat 2054 to move, so that the support panel 2032 is displaced to keep in contact with the prefabricated ground-connected wall structure 100. At this time, the spring 2034 drives the second piston 2033 to reset, so that the second piston 2033 presses the liquid inside the piston cylinder 2031 to the other end, so that the first piston 2035 drives the connecting rod 2036 to move, and the connecting rod 2036 drives the roller 2037 to contact the prefabricated ground-connected wall structure 100.

[0064] S4. After the roller 2037 contacts the prefabricated ground-connected wall structure 100 smoothly, the first electric hydraulic rod 2013 pushes the support tube 2021 to move downward, so that the first telescopic frame 2023 is deployed downward, and then the first telescopic frame 2023 drives the support tube 2021 below to be deployed downward in sequence through the first slider 2024 and the guide rail 2022. The support tube 2021 drives the switchable support surface assembly 203 to move downward through the driving assembly 205. At the same time, the downward movement of the support tube 2021 also drives the second telescopic frame 2041 to be deployed downward, so that the switchable support surface assemblies 203 located at the front and rear sides move relative to each other;

[0065] S5. When the support panel 2032 moves downward to a position close to the surface of the foundation pit to be excavated, the second electric hydraulic rod 2051 is controlled to push the drive plate 2053 and the drive seat 2054 to move, so that the roller 2037 is squeezed by the prefabricated ground-connected wall structure 100 and retracts, so that the connecting rod 2036 pushes back the first piston 2035. At this time, the second piston 2033 is hydraulically controlled to move, so that the second piston 2033 drives the support panel 2032 to move through the drive rod 2038, so that the support panel 2032 is pressed against the prefabricated ground-connected wall structure 100, and then the excavation operation is continued. In this way, each time a section of excavation is carried out, the length of the support panel 2032 is continued to be extended to support the prefabricated ground-connected wall structure 100.

[0066] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0067] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0068] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fully prefabricated ground-connected wall intelligent servo support device, characterized in that: It comprises a prefabricated ground-connected wall support mechanism (200), wherein the prefabricated ground-connected wall support mechanism (200) is assembled between two prefabricated ground-connected wall structures (100); The prefabricated ground-connected wall support mechanism (200) comprises a mounting and driving assembly (201), wherein the mounting and driving assembly (201) is mounted above two prefabricated ground-connected wall structures (100), and an adjustable support assembly (202) is arranged below the mounting and driving assembly (201); Adjustment components (204) are arranged on both sides of the adjustable support component (202), a plurality of drive components (205) are arranged on one side of the adjustment component (204), a switchable support surface component (203) is mounted on the drive component (205), and the switchable support surface component (203) is arranged on the prefabricated ground-connected wall structure (100).

2. A fully prefabricated ground-connected wall intelligent servo support device as claimed in claim 1, characterized in that: The installation and driving assembly (201) comprises a mounting plate (2011), both sides of which are fixed to the top of two prefabricated ground-connected wall structures (100) by means of mounting bolts, and a plurality of lifting rings (2012) are fixedly mounted on the top of the mounting plate (2011).

3. A fully prefabricated ground-connected wall intelligent servo support device as claimed in claim 2, characterized in that: The adjustable support assembly (202) comprises a top plate (2025) and a plurality of support tubes (2021); a first electric hydraulic rod (2013) is installed through the top plate (2025) and the mounting plate (2011); and the bottom end of the first electric hydraulic rod (2013) is installed on the topmost support tube (2021); The front and rear sides of the support tube (2021) are fixedly connected with guide rails (2022); the front multiple guide rails (2022) and the rear multiple guide rails (2022) are respectively hinged to the two first telescopic frames (2023); and the upper ends of the two first telescopic frames (2023) are also hinged to the top plate (2025).

4. A fully prefabricated ground-connected wall intelligent servo support device as claimed in claim 3, characterized in that: A first sliding block (2024) is slidably disposed in the guide rail (2022), and a plurality of first sliding blocks (2024) at the front and a plurality of first sliding blocks (2024) at the rear are respectively hinged to the two first telescopic frames (2023).

5. A fully prefabricated ground-connected wall intelligent servo support device as claimed in claim 4, characterized in that: The top plate (2025) is provided with a sliding groove (2026) on both the front and rear sides, a second sliding block (2027) is slidably connected in the sliding groove (2026), and the second sliding block (2027) is hinged to the first telescopic frame (2023).

6. A fully prefabricated ground-connected wall intelligent servo support device as claimed in claim 5, characterized in that: The adjustment assembly (204) comprises a second telescopic frame (2041), wherein a ring portion (2042) is provided in the middle of each cross arm of the second telescopic frame (2041), the two ring portions (2042) are sleeved on one end of the support tube (2021), and the two ring portions (2042) are provided between the disc (2043) and the limiting ring (2044).

7. A fully prefabricated ground-connected wall intelligent servo support device as claimed in claim 6, characterized in that: The driving assembly (205) comprises a fixed disk (2052), wherein the fixed disk (2052) located in the middle is fixedly connected to the circular disk (2043), and the fixed disks (2052) located on both sides are respectively hinged to the front end point and the rear end point of the second telescopic frame (2041); A second electric hydraulic rod (2051) is fixedly mounted on one side of the fixed disk (2052), one end of the second electric hydraulic rod (2051) is fixedly connected to a driving disk (2053), and one side of the driving disk (2053) is fixedly connected to a driving seat (2054).

8. A fully prefabricated ground-connected wall intelligent servo support device as claimed in claim 7, characterized in that: The switchable support surface assembly (203) comprises three piston cylinders (2031), which are fixedly mounted on a drive seat (2054), and the piston cylinder (2031) is a U-shaped structure. A first piston (2035) is arranged inside the piston cylinder (2031), and a connecting rod (2036) is fixedly connected to one side of the first piston (2035). The connecting rod (2036) passes through one end of the piston cylinder (2031) and is rotatably mounted with a roller (2037).

9. A fully prefabricated ground-connected wall intelligent servo support device as claimed in claim 8, characterized in that: A second piston (2033) is also provided inside the piston cylinder (2031), one side of the second piston (2033) is fixedly connected to a spring (2034), one end of the spring (2034) is fixedly connected to the inner wall of the piston cylinder (2031), one side of the second piston (2033) is fixedly connected to a driving rod (2038), and three driving rods (2038) pass through the other end of the piston cylinder (2031) and are fixedly connected to the support panel (2032).

10. The construction method of a fully prefabricated ground-connected wall intelligent servo support device according to claim 9, characterized in that: The steps include: S1. Before the prefabricated ground-connected wall structure (100) is reinforced, the prefabricated ground-connected wall structure (100) is first pre-buried in the ground. After the pre-buried, the mounting plate (2011) is mounted on the top of the prefabricated ground-connected wall structure (100) by means of mounting bolts, so that the switchable reinforcement surface assembly (203) is located between the prefabricated ground-connected wall structures (100); S2, then excavating the space between the prefabricated ground-connected wall structures (100); S3. When the excavation pit depth increases, the second electric hydraulic rod (2051) is retracted, so that the second electric hydraulic rod (2051) drives the driving plate (2053) and the driving seat (2054) to move, so that the support panel (2032) is displaced to maintain contact with the prefabricated ground-connected wall structure (100). At this time, the spring (2034) drives the second piston (2033) to reset, so that the second piston (2033) presses the liquid inside the piston cylinder (2031) to the other end, so that the first piston (2035) drives the connecting rod (2036) to move, and the connecting rod (2036) drives the roller (2037) to contact the prefabricated ground-connected wall structure (100); S4. After the roller (2037) contacts the prefabricated ground-connected wall structure (100) smoothly, the first electric hydraulic rod (2013) pushes the supporting tube (221) to move downward, so that the first telescopic frame (2023) is unfolded downward, and then the first telescopic frame (2023) drives the supporting tube (221) below to unfold downward in sequence through the first slider (2024) and the guide rail (2022), and the supporting tube (2021) drives the switchable supporting surface assembly (203) to move downward through the driving assembly (205). At the same time, the downward movement of the supporting tube (2021) also drives the second telescopic frame (2041) to unfold downward, so that the switchable supporting surface assemblies (203) located at the front and rear sides move relative to each other; S5. When the support panel (2032) moves downward to a position close to the surface of the foundation pit to be excavated, the second electric hydraulic rod (2051) is controlled to push the drive plate (2053) and the drive seat (2054) to move, so that the roller (2037) is squeezed by the prefabricated ground-connected wall structure (100) and retracts, so that the connecting rod (2036) pushes back the first piston (2035). At this time, the second piston (2033) is hydraulically controlled to move, so that the second piston (2033) drives the support panel (2032) to move through the drive rod (2038), so that the support panel (2032) is pressed against the prefabricated ground-connected wall structure (100), and then the excavation operation is continued. In this way, each time a section is excavated, the length of the support panel (2032) is continued to be extended to support the prefabricated ground-connected wall structure (100).

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