Deep foundation pit rail supporting system

Abstract

The utility model relates to a deep foundation pit track supporting system which is used for supporting a pit wall of a deep foundation pit, a plurality of supporting columns distributed at intervals are designed on the pit wall in the length direction, and each supporting column is provided with a plurality of supporting points at intervals. The deep foundation pit rail supporting system comprises a plurality of rail mechanisms installed on a pit wall and a plurality of supporting devices connected to the corresponding rail mechanisms in a sliding mode. The rail mechanism is formed by sequentially connecting and combining a plurality of sections of guide rail devices, and each guide rail device comprises a main rail and at least one branch rail extending from the main rail to the side direction. In one track mechanism, a plurality of sections of main tracks are connected in sequence, the branch track connected with each section of main track extends to the corresponding supporting point, and the supporting device slides to the supporting point corresponding to one branch track along the main track of the track mechanism so as to abut against the supporting points and support the foundation pit. The guide rail device is installed to guide directional movement of the supporting device, and rapid and accurate positioning can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of excavation, in particular to a deep foundation pit track support system. Background Art

[0002] In the construction of large foundation pits, ensuring the stability and safety of the foundation pits is crucial. In the traditional support device, a hoisting mechanism drives a steel wire rope to adjust the lifting height during the hoisting process, so as to realize the positioning hoisting of the support device. Not only is the installation efficiency low, the exposure time of the foundation pit without support is prolonged, but also the risk of foundation pit collapse is extremely easy to occur. Moreover, with the change of the depth of the foundation pit, the hoisting difficulty of the support device increases, and there is also the technical problem of completely readjusting the distance between the support devices.

[0003] Therefore, it is necessary to innovate and improve the existing support device and installation method to improve the installation efficiency, reduce the safety risk, and adapt to the change of different foundation pit depths. For example, the Chinese patent publication CN118223498A discloses a deep foundation pit support system and construction method, which uses a steel collar for support and positioning.

[0004] However, the steel collar not only has high installation and construction time consumption, but also it is difficult to quickly guide the support device to the support point, and the exposure time of the foundation pit without support is long, so improvement is needed. Summary of the Utility Model

[0005] To overcome the problems existing in the related art, an embodiment of the utility model provides a deep foundation pit track support system to solve the technical problems of low moving efficiency of the support device and slow construction of the support system.

[0006] According to the first aspect of the embodiment of the utility model, a deep foundation pit track support system is provided for supporting the pit wall of a deep foundation pit. The pit wall is designed with multiple rows of support rows distributed at intervals along the length direction, and each support row is provided with multiple support points at intervals. The deep foundation pit track support system includes multiple track mechanisms installed on the pit wall and multiple support devices slidably connected to the corresponding track mechanisms;

[0007] The track mechanism is composed of multiple sections of guide rail devices connected in sequence. The guide rail device includes a main track and at least one branch track extending laterally from the main track;

[0008] In one track mechanism, multiple sections of main tracks are connected in sequence, and the branch tracks connected to each section of the main track extend to the corresponding support points. The support device slides along the main track of the track mechanism to the support point corresponding to one of the branch tracks to abut against the support point and support the foundation pit.

[0009] In one embodiment, the branch track is arranged on one side or both sides of the main track, and the branch track is inclined or perpendicular to the main track.

[0010] In one embodiment, the branch tracks are symmetrically arranged on both sides of the main track.

[0011] In one embodiment, a positioning mechanism is provided at the end of the branch track, and the positioning mechanism is used to define the moving position of the support device.

[0012] In one embodiment, the guide rail device is provided with a guiding component, and the guiding component is used to guide the support device from the main track to the branch track.

[0013] In one embodiment, the guiding component includes a driving mechanism and a switching seat connected to the driving mechanism. The driving mechanism controls the switching seat to actively open and close the passage opening between the main track and the branch track, and the switching seat guides the support device to move towards the branch track when it is opened.

[0014] In one embodiment, the switching seat includes a pivot end, a abutting end, and a guiding portion connecting the pivot end and the abutting end. The driving mechanism is connected to the pivot end, the driving mechanism is connected to the pivot end, the abutting end abuts against the opposite side of the main track when the switching seat is opened, and the guiding portion obliquely spans the inner space of the main track.

[0015] In one embodiment, embedded parts are arranged in the pit wall, and the guide rail device is detachably connected to the embedded parts.

[0016] In one embodiment, the support device includes a strut assembly and a servo axial force loading assembly connected to at least one end of the strut assembly. The servo axial force loading assembly is slidably defined by the guide rail device and abuts against the support point.

[0017] In one embodiment, the servo axial force loading assembly automatically moves along the guide rail device; and / or, a hoisting device is installed above the foundation pit, and the hoisting device hoists the support device to move along the guide rail device.

[0018] The technical solutions provided by the embodiments of the present utility model may include the following beneficial effects: By installing a guide rail device to guide the directional movement of the support device, rapid and precise positioning can be achieved, thereby improving construction efficiency and reducing safety risks. The guide rail device allows the support device to quickly move along a predetermined path to the designated support point position, greatly reducing the time required for traditional positioning and hoisting. The support device can turn on the support rail to quickly be allocated to the positions that need to be supported, further enhancing the flexibility and response speed of the system. Since the support device can be quickly in place, the exposure time of the foundation pit without support is shortened, reducing the risk of foundation pit collapse. The guide rail device provides stable guidance for the support device, helping to form a uniform support force around the foundation pit and enhancing the overall stability. The guide rail device can be continued or adjusted according to the change of the foundation pit depth, enabling it to adapt to foundation pits of different depths and providing high flexibility. The use of the guide rail device simplifies the installation process of the support device and reduces the skill requirements for operators.

[0019] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. Brief Description of the Drawings

[0020] The accompanying drawings herein are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present utility model, and are used together with the specification to explain the principles of the present utility model.

[0021] Figure 1 is a schematic structural diagram of a deep foundation pit supported by a support device shown according to an exemplary embodiment.

[0022] Figure 2 is a schematic diagram showing the support device sliding into a side support rail along the main rail according to an exemplary embodiment.

[0023] Figure 3 is a schematic diagram showing the support device sliding into the other side support rail along the main rail according to an exemplary embodiment.

[0024] Figure 4 is Figure 1 an enlarged schematic diagram of part A in

[0025] In the figure, support device 10; servo axial force loading assembly 11; jacking housing 111; jacking system 112; strut assembly 12; guide rail device 20; main rail 21; support rail 22; positioning mechanism 221; guiding assembly 23; switching seat 231; pivot end 2311; abutting end 2312; guiding portion 2313; driving mechanism 232; hoisting equipment 30; support point 40. Detailed Description of the Embodiments

[0026] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams rather than actual product drawings, and should not be construed as a limitation on this patent; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged, or reduced, which does not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0027] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] As Figures 1 to 4 shown, the present invention provides a deep foundation pit track support system for supporting the pit wall of a deep foundation pit. The pit wall is designed with multiple rows of support rows distributed at intervals along the length direction, and each support row is provided with multiple support points 40 spaced apart. The support row is a multi-row support system distributed in the length direction of the foundation pit, and each support row is supported at intervals by multiple support devices 10. The number of support devices 10 is adjusted according to the change in the depth of the foundation pit. The support point 40 is a preset position during the design of the foundation pit, and the support point 40 is a regional range. The pit wall is formed by pouring concrete and an internal steel reinforcement cage, and is used to separate the excavated foundation pit from the external soil layer. The two ends of the support device 10 support the opposite pit walls to maintain the stability of the foundation pit. <{

[0030] The deep foundation pit track support system supports the foundation pit. Among them, the deep foundation pit track support system includes multiple track mechanisms installed on the pit wall and multiple support devices 10 slidably connected to the corresponding track mechanisms. The track mechanisms extend along the depth direction of the pit wall to quickly and directionally guide the support devices 10 to the positions of the support points 40 at the corresponding depths, thereby achieving rapid support. By erecting the track mechanisms, the time for the original hoisting and adjusting the positions of the support devices 10 can be shortened from dozens of hours or several hours to dozens of minutes. Moreover, each support device 10 can quickly reach the position, without the need for individual adjustment as the depth of the foundation pit changes, greatly improving the adjustment efficiency.

[0031] The track mechanism is composed of multiple sections of guide rail devices 20 connected in sequence. The guide rail device 20 includes a main track 21 and at least one branch track 22 extending laterally from the main track 21. Multiple sections of guide rail devices 20 are combined in sequence to adapt to the excavation requirements of foundation pits with different depths. The guide rail device 20 supports the lifting and lowering movement of the support device 10 in the depth direction of the foundation pit through the main track 21. The branch track 22 connects the main track 21 and the support point 40 to guide the rapid movement of the support device 10, with high movement guidance efficiency. By installing the guide rail device 20 to guide the directional movement of the support device 10, rapid and accurate positioning can be achieved, thereby improving the construction efficiency and reducing the safety risk.

[0032] Among them, in one track mechanism, multiple sections of main tracks 21 are connected in sequence, and the branch tracks 22 connected to each section of the main track 21 extend to the corresponding support points 40. The support device 10 slides along the main track 21 of the track mechanism to the support point 40 corresponding to one of the branch tracks 22 to abut against the support point 40 and support the foundation pit. The guide rail device 20 allows the support device 10 to quickly move along a predetermined path to the designated position of the support point 40, greatly reducing the time required for traditional positioning and hoisting. The support device 10 can turn on the branch track 22 to be quickly allocated to the positions that need to be supported, further enhancing the flexibility and response speed of the system.

[0033] Since the support device 10 can be quickly in place, the exposure time of the foundation pit without support is shortened, reducing the risk of foundation pit collapse. The guide rail device 20 provides stable guidance for the support device 10, helping to form a uniform supporting force around the foundation pit and enhancing the overall stability. The guide rail device 20 can be continued or adjusted according to the change of the foundation pit depth, enabling it to adapt to foundation pits with different depths and providing high flexibility. The use of the guide rail device 20 simplifies the installation process of the support device 10 and reduces the skill requirements for operators.

[0034] In one embodiment, the branch track 22 is arranged on one or both sides of the main track 21, and the branch track 22 is inclined or perpendicular to the main track 21. Arranging the branch track 22 on one or both sides of the main track 21 and being inclined or perpendicular to the main track 21 can provide multi-directional support and flexibility.

[0035] Preferably, the branch track 22 is arranged to slope downwards, which can utilize gravity to promote the sliding of the support device 10 along the track to the designated support point 40, improving the moving efficiency. The support device 10 slides along the branch track 22 under the action of its own gravity and pulling force. This design can reduce the need for external driving force and lower energy consumption. When the guiding direction of the branch track 22 is perpendicular to the guiding direction of the main track 21, the support device 10 can be erected from the main track 21 onto the branch track 22 to achieve stable lateral movement. The support device 10 can slide flexibly along the branch track 22 and hover at any position, which provides great convenience for precise positioning, especially in a complex foundation pit environment.

[0036] By arranging the branch track 22 on one or both sides of the main track 21, the space around the foundation pit can be utilized more effectively, especially in the case of limited space. The inclined or perpendicular branch track 22 can expand the coverage range of the support device 10 to ensure that more areas of the foundation pit are supported. The inclined or perpendicular arrangement of the branch track 22 needs to ensure the stability of the structure to avoid deformation or damage caused by uneven stress. Whether on one side or both sides of the main track 21, it can be adjusted according to the specific conditions of the foundation pit. The branch track 22 that is inclined or perpendicular to the main track 21 can be easily adjusted to adapt to changes in the depth and width of the foundation pit.

[0037] Preferably, the branch tracks 22 are symmetrically arranged on both sides of the main track 21. Two branch tracks 22 are arranged and symmetrically distributed on both sides of the main track 21, which can not only make the support devices 10 on both sides of the main track 21 at the same height, but also share the same main track 21 and have balanced stress, with good support effect. Optionally, the branch tracks 22 are welded and fixed to the main track 21 to form an integral structure, which can be processed into prefabricated parts and installed as a whole into the foundation pit. Optionally, the main track 21 and the branch tracks 22 are separately arranged and can be detachably assembled to form an assembled connection.

[0038] In one embodiment, a positioning mechanism 221 is arranged at the end of the branch track 22, and the positioning mechanism 221 is used to define the moving position of the support device 10. The positioning mechanism 221 is located at the end of the branch track 22 and can position the maximum moving position of the support device 10. Preferably, when the support device 10 moves and contacts the positioning mechanism 221, the axial end face of the support device 10 is aligned with the support point 40 to achieve rapid positioning. Preferably, the positioning mechanism 221 is a baffle arranged at the end of the branch track 22; or, the positioning mechanism 221 is a positioning step arranged at the end of the branch track 22.

[0039] In one embodiment, the support devices 10 distributed on one side of the guide rail device 20 are on the same longitudinal line, and the spacing distance of the support devices 10 is less than or equal to 6 meters. The support rail 22 guides the support devices 10 to the corresponding support points 40. Preferably, the support points 40 are linearly distributed in the depth direction of the foundation pit. Multiple support devices 10 are arranged in multiple columns in the length direction of the foundation pit and in multiple rows in the depth direction of the foundation pit, thereby forming a support system. The spacing distance of the support devices 10 is set to 2 meters, 2.5 meters, 3 meters, 3.5 meters, 4 meters, 5 meters, 6 meters.

[0040] Furthermore, the guide rail device 20 is provided with a guiding component 23, and the guiding component 23 is used to guide the support device 10 from the main rail 21 to the support rail 22. The guiding component 23 guides the support device 10 to move from the main rail 21 to the support rail 22, which ensures that the support device 10 can accurately move along the predetermined path and reach the designated support point 40. Through the precise control of the guiding component 23, the support device 10 can smoothly transition between the main rail 21 and the support rail 22, avoiding errors caused by manual operation. The guiding component 23 is used to switch the conduction opening between the main rail 21 and one of the support rails 22, which allows the support device 10 to select different support rails 22 as needed. The guiding component 23 can close the conduction opening between the main rail 21 and the support rail 22, thereby preventing the support device 10 from mistakenly entering the support rail 22 that is not needed from the main rail 21. The guiding component 23 performs the switching of the conduction channel of the guide rail device 20, ensuring the maximization of the conduction effect and improving the moving efficiency of the support device 10.

[0041] In one embodiment, the guiding component 23 includes a driving mechanism 232 and a switching seat 231 connected to the driving mechanism 232. The driving mechanism 232 controls the switching seat 231 to actively open and close the channel opening between the main rail 21 and the support rail 22. When the switching seat 231 is open, it guides the support device 10 to move towards the support rail 22. The driving mechanism 232 controls the movement of the switching seat 231 to open and close the channel opening between the main rail 21 and the support rail 22. This design allows the support device 10 to select different support rails 22 as needed. When the switching seat 231 is open, it guides the support device 10 to move towards the support rail 22, ensuring that the support device 10 can accurately move along the predetermined path.

[0042] The driving mechanism 232 drives the switching seat 231 to rotate relative to the main track 21. The switching seat 231 is used to guide the support device 10 to move towards the branch track 22. The free end of the switching seat 231 can be erected and connected to the opposite side of the main track 21 to achieve automatic limitation, which helps to maintain the stability of the switching seat 231 and ensure the smooth movement of the support device 10. The driving mechanism 232 drives the switching seat 231 to rotate. Specifically, the driving mechanism 232 drives the switching seat 231 to rotate into the track space of the main track 21, so that the support device 10 slides into the branch track 22 after moving to the switching seat 231, thereby realizing guiding and sliding. Alternatively, the driving mechanism 232 drives the switching seat 231 to rotate in the reverse direction, so that the switching seat 231 fits against the side wall of the main track 21 and closes the opening of the branch track 22, so that the switching seat 231 is flush with the main track 21, and the main track 21 guides the support device 10 to move downward.

[0043] Preferably, the switching seat 231 is rotatably connected to the main track 21 through a rotating shaft, and the free end of the switching seat 231 can be erected and connected to the opposite side of the main track 21 to achieve automatic limitation. When the switching seat 231 closes to one side of the main track 21, the switching seat 231 avoids the sliding space of the main track 21. When the switching seat 231 expands and abuts against the other side of the main track 21 or the branch track 22 on the other side, the switching seat 231 blocks the sliding space of the main track 21 and guides the main track 21 and the branch track 22 to communicate. Preferably, the switching seat 231 is arranged in an arc structure to enable the support assembly to smoothly move to the branch track 22. The switching seat 231 is arranged in an arc structure, which helps the support device 10 to smoothly move to the branch track 22 and reduces friction and resistance during the movement.

[0044] In a specific embodiment, the switching seat 231 includes a pivoting end 2311, a abutting end 2312, and a guiding portion 2313 connecting the pivoting end 2311 and the abutting end 2312. The driving mechanism 232 is connected to the pivoting end 2311. The abutting end 2312 abuts against the opposite side of the main track 21 when the switching seat 231 is opened, and the guiding portion 2313 obliquely spans the inner space of the main track 21. The pivoting end 2311 and the abutting end 2312 form both ends of the switching seat 231. The driving mechanism 232 can be set as a power motor or a torsion mechanism operated manually to rotate the pivoting end 2311 to rotate the switching seat 231. The abutting end 2312 abuts against the opposite side of the main track 21 during guiding, so that a smooth transition can be achieved.

[0045] In one embodiment, embedded parts are provided inside the pit wall, and the guide rail device 20 is detachably connected to the embedded parts. The guide rail device 20 is connected to the embedded parts to form a detachable connection structure or a fixed connection structure. For example, the guide rail device 20 is detachably connected to the embedded parts of the foundation pit by bolts to form a detachable connection structure.

[0046] Furthermore, the guide rail device 20 is fixedly welded to the embedded parts of the foundation pit to form a fixed connection.

[0047] In one embodiment, a steel reinforcement cage is embedded around the foundation pit and concrete is poured to form a concrete wall. The embedded steel reinforcement cage is provided with a connecting frame, and the guide rail device 20 is connected to the connecting frame. The embedded steel reinforcement cage and the connecting frame form the embedded parts. The guide rail device 20 can be locked and connected to the connecting frame by bolts; alternatively, the guide rail device 20 can be fixed to the connecting frame by welding technology, so as to install the guide rail device 20 on the foundation pit and provide support and guiding functions for the support device 10. Multiple guide rail devices 20 form a continuous and interconnected guiding system to improve the fast movement and sliding efficiency of the support device 10.

[0048] In one embodiment, the support device 10 includes a strut assembly 12 and a servo axial force loading assembly 11 connected to at least one end of the strut assembly 12. The servo axial force loading assembly 11 is slidably defined by the guide rail device 20 and abuts against the support point 40.

[0049] Optionally, the working principle of the servo axial force loading assembly 11 can refer to the content of the published document CN109896483A. The support device 10 includes a strut assembly 12, which is the main part of the support device 10 and is used to provide direct supporting force. The servo axial force loading assembly 11 is connected to at least one end of the strut assembly 12, and can be slidably defined by the guide rail device 20 and abut against the support point 40, so as to provide the necessary axial loading force for the strut assembly 12. The servo axial force loading assembly 11 can be adaptively adjusted according to the different excavation depths of the foundation pit, and can be adjusted to adapt to different loading forces to meet the needs of deep foundation pit construction. The servo axial force loading assembly 11 is designed without external pipelines, and can easily slide along with the track device to the corresponding support point 40 and perform loading after sliding along the support track 22 to the area where the support point 40 is located. The load adjustment process and loading process of the servo axial force loading assembly 11 are intelligent and can be automatically adjusted according to the specific situation of the foundation pit to ensure appropriate supporting force during the whole construction process. By precisely controlling the loading force, the servo axial force loading assembly 11 helps to reduce the deformation and displacement of the foundation pit wall and improve the safety and efficiency of construction.

[0050] Both ends of the strut assembly 12 can be connected to the servo axial force loading assembly 11 to build a double support. The servo axial force loading assemblies 11 at both ends of the strut assembly 12 can realize the support loading on the opposite two pit walls, and this way provides a more uniform and stable supporting force.

[0051] One end of the strut assembly 12 is connected to the servo axial force loading assembly 11 to form a single-point support. Wherein, the other end of the strut assembly 12 directly abuts against the support point 40. This method is applicable to specific construction environments, especially when centralized support needs to be provided at a specific location.

[0052] Wherein, the servo axial force loading assembly 11 includes a jacking housing 111, a jacking system 112 located inside the jacking housing 111, a displacement detection system and a pressure compensation system. The strut assembly 12 is connected to the jacking housing 111, and the jacking system 112 pushes the strut assembly 12 to gradually apply a loading force to the support point 40. The jacking housing 111 adopts a solid housing structure to provide protection for the internal components and ensure the stability and safety of the jacking system 112, the displacement detection system and the pressure compensation system. The output end of the jacking system 112 extends out of the jacking housing 111 and abuts against the support point 40, and the jacking housing 111 is in abutting connection with the end of the strut assembly 12. The jacking system 112 can be set as a hydraulic mechanism to achieve smooth and powerful pressure output by using the hydraulic principle. This method can provide continuously adjustable loading force to meet the requirements of different construction stages. The jacking system 112 pushes the strut assembly 12 to gradually apply a loading force to the support point 40. This gradually increasing method helps to maintain the stability of the foundation pit wall and avoid deformation or damage of the foundation pit wall caused by suddenly applying a large force. The pressure compensation system can relieve or pressurize the jacking system 112 according to actual needs, which helps to keep the jacking system 112 always in a suitable load force state. Especially when the pit wall deforms, the pressure compensation system can flexibly adjust the load force according to the deformation amount of the foundation pit to ensure the stability and safety of the foundation pit support system.

[0053] The displacement detection system is used to detect the initial position when the support device 10 is jacked in place, and output an electrical signal when the support point 40 deforms and the servo axial force loading assembly 11 moves downward. The pressure compensation system controls the jacking system 112 to compensate the loading force after receiving the electrical signal output by the displacement detection system. The support device 10 abuts against the support point 40, and the displacement detection system is used to detect the displacement amount of the support device 10 and the pressure value of the support device 10. The displacement detection system is used to monitor the displacement of the strut assembly 12 in real time, which is crucial for ensuring the accuracy of the loading force and timely adjustment. The displacement detection system outputs an electrical signal when detecting parameter changes. The pressure compensation system receives this electrical signal and controls the jacking system 112 to pressurize or relieve pressure based on this electrical signal to achieve self-adjusting balance of the jacking system 112. By collecting displacement data, construction personnel can understand the actual working state of the strut assembly 12 and make timely adjustments to maintain the optimal performance of the foundation pit support system.

[0054] In one embodiment, the support device 10 moves powerfully along the guide rail device 20. In this embodiment, the support device 10 is provided with an active moving mechanism to drive the support device 10 to move along the guide rail device 20, so as to move along the main track 21 to the branch track 22 and correspondingly abut against the support point 40. The support device 10 is provided with an active moving mechanism, which can drive the support device 10 to move powerfully along the guide rail device 20. This method provides a stable driving force to ensure that the support device 10 can accurately move along the main track 21 to the branch track 22 and correspondingly abut against the support point 40. For example, there are power roller mechanisms at both ends of the support device 10, and the power roller mechanisms slide along the track walls of the main track 21 or the branch track 22. The active moving mechanism allows precise control of the moving speed and direction of the support device 10, which helps to achieve fast and accurate positioning and improve construction efficiency.

[0055] In another embodiment, a hoisting device 30 is installed above the foundation pit, and the hoisting device 30 hoists the support device 10 to move along the guide rail device 20. A hoisting device 30 is installed above the foundation pit, and these devices are used to hoist the support device 10 to move along the guide rail device 20. Through the hoisting device 30, the support device 10 can be easily moved to the designated position, especially in occasions where space is limited or obstacles need to be crossed. The guide rail device 20 limits the ends of the support device 10 and guides the support device 10 to move directionally, so as to achieve fast positioning and directional movement, and the moving effect is good. Optionally, the hoisting device 30 is provided with a winch mechanism, and the support device 10 is hoisted and connected through a steel cable. This mechanism provides a reliable hoisting method to ensure the stability and safety of the support device 10.

[0056] Preferably, the support device 10 simultaneously realizes autonomous sliding and hoisting by the hoisting device 30, maintaining safety and controllability of automatic movement, and having a good moving and loading effect. It is worth mentioning that self-traveling mechanisms are provided at both ends of the support device 10 to enable the support device 10 to move along the guide rail device 20, with good cooperation effect. For example, the self-traveling mechanism is set as multiple power rollers or track mechanisms to achieve self-traveling control.

[0057] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common general knowledge or conventional technical means in the technical field not disclosed by the present invention. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.

[0058] It should be understood that the present utility model is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present utility model is only limited by the appended claims.

Claims

1. A deep foundation pit track support system for supporting the pit wall of a deep foundation pit. The pit wall is designed with multiple rows of support rows spaced along the length direction, and each support row is provided with multiple spaced support points. It is characterized in that, The deep foundation pit track support system includes multiple track mechanisms installed on the pit wall and multiple support devices slidably connected to the corresponding track mechanisms; The track mechanism is composed of multiple guide rail devices connected in sequence. The guide rail device includes a main track and at least one branch track extending laterally from the main track; In one track mechanism, multiple sections of the main track are connected in sequence. The branch track connected to each section of the main track extends to the corresponding support point. The support device slides along the main track of the track mechanism to the support point corresponding to one of the branch tracks to abut against the support point and support the foundation pit.

2. The deep foundation pit track support system according to claim 1, wherein The branch track is arranged on one side or both sides of the main track. The branch track is inclined or perpendicular to the main track.

3. The deep foundation pit track support system according to claim 2, wherein, The branch tracks are symmetrically arranged on both sides of the main track.

4. The deep foundation pit track support system according to claim 2, wherein, A positioning mechanism is arranged at the end of the branch track. The positioning mechanism is used to limit the moving position of the support device.

5. The deep foundation pit track support system according to claim 1, wherein, The guide rail device is provided with a guiding component. The guiding component is used to guide the support device from the main track to the branch track.

6. The deep foundation pit track support system according to claim 5, wherein The guiding component includes a driving mechanism and a switching seat connected to the driving mechanism. The driving mechanism controls the switching seat to move to open and close the passage opening between the main track and the branch track. When the switching seat is opened, it guides the support device to move in the direction of the branch track.

7. The deep foundation pit track support system according to claim 6, wherein The switching seat includes a pivoting end, a abutting end, and a guiding portion connecting the pivoting end and the abutting end. The driving mechanism is connected to the pivoting end. The driving mechanism is connected to the pivoting end. The abutting end abuts against the opposite side edges of the main track when the switching seat is opened. The guiding portion obliquely spans the inner space of the main track.

8. The deep foundation pit track support system according to claim 1, characterized in that, Embedded parts are arranged in the pit wall. The guide rail device is detachably connected to the embedded parts.

9. The deep foundation pit track support system according to claim 1, wherein, The support device includes a strut assembly and a servo axial force loading assembly connected to at least one end of the strut assembly. The servo axial force loading assembly is slidably limited to the guide rail device and abuts against the support point.

10. The deep foundation pit track support system according to claim 9, characterized in that, The servo axial force loading assembly automatically moves along the guide rail device; and / or, a hoisting device is installed above the foundation pit. The hoisting device hoists the support device to move along the guide rail device.

Images