Deep foundation pit site supporting structure

Abstract

The invention relates to the technical field of foundation pit engineering, and discloses a deep foundation pit site supporting structure which comprises a bearing mechanism, a supporting mechanism, a supporting mechanism and a supporting mechanism, and the bearing mechanism comprises a base, a vertical rod fixedly installed on the top of the base and a supporting assembly arranged on the outer side of the base; the positioning mechanism comprises a supporting frame fixedly installed on the top of the base, a rotating shaft hinged to the outer side of the supporting frame and a connecting base fixedly installed on the outer side of the rotating shaft. A double-layer protection system is formed by the conical stainless steel sleeve and the telescopic rubber sleeve, impact resistance of metal materials is achieved, water vapor can be isolated through elastic sealing, the problem of accumulated water retention is solved through the unique drainage groove design, stable installation of the protection cover cloth is ensured through the rapid fixing mechanism, falling caused by construction collision is prevented, and the protection cover cloth is safe and reliable. Through the rigid and flexible protection combination, the durability is guaranteed, the reliable dynamic sealing effect is achieved, and the problems that a traditional plastic protection cover is prone to damage and water accumulation are thoroughly solved.

Description

Technical Field

[0001] This invention relates to the technical field of foundation pit engineering, and in particular to a support structure for deep foundation pit sites. Background Technology

[0002] Deep foundation pit support structures are temporary or permanent engineering systems installed during underground space development to ensure the stability of the excavation and the safety of the surrounding environment. Their core functions include resisting earth pressure, controlling ground deformation, and preventing groundwater seepage damage. They typically consist of components such as retaining piles, diaphragm walls, internal bracing, or anchor cables, and are complemented by auxiliary measures such as dewatering and cutoff walls.

[0003] Currently, in deep foundation pit support projects, the exposed parts of prestressed anchor cables are exposed to the elements for extended periods. Due to rainwater erosion and humidity, surface rust is a common problem. Although traditional plastic protective covers are inexpensive, their brittle and hard material and poor impact resistance make them prone to breakage and detachment during construction machinery collisions or earthwork backfilling operations, leading to protective failure. Furthermore, if the bottom of the protective cover is not properly sealed, water accumulation can easily form, which accelerates anchor head corrosion and affects the long-term durability of the anchor cable. Summary of the Invention

[0004] In view of the problems existing in the current deep foundation pit site support structure, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a support structure for deep foundation pit sites, the purpose of which is to achieve long-term protection and convenient maintenance of the support structure through protective components and quick fixing mechanisms.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including, The support mechanism includes a base, a vertical rod fixedly installed on the top of the base, and a support assembly disposed on the outside of the base; The positioning mechanism includes a support frame fixedly installed on the top of the base, a rotating shaft hinged to the outside of the support frame, a connecting seat fixedly installed on the outside of the rotating shaft, and a protective component disposed on the outside of the connecting seat. And a quick-fixing mechanism for connecting the protective cover fabric.

[0007] As a preferred embodiment of the deep foundation pit site support structure of the present invention, the positioning mechanism further includes a gripping rod located outside the protective component, a positioning groove block fixedly installed outside the gripping rod, an anchor rod movably engaged in the inner cavity of the positioning groove block, and an adjusting groove seat sleeved outside the anchor rod.

[0008] As a preferred embodiment of the deep foundation pit site support structure of the present invention, the protective component includes a flange, a conical stainless steel sleeve fixedly installed on the outside of the flange, an anchor head fixedly installed on the outside of the conical stainless steel sleeve, and a tension spring sleeved on the outside of the anchor head.

[0009] As a preferred embodiment of the deep foundation pit site support structure of the present invention, the protective component further includes a telescopic rubber sleeve sleeved on the outside of the anchor head and the tension spring, and a drainage groove opened on the outside of the telescopic rubber sleeve.

[0010] As a preferred embodiment of the deep foundation pit site support structure of the present invention, wherein: the end of the anchor head is fixedly connected to the anchor rod, the outer side of the telescopic rubber sleeve is fixedly connected to the outer side of the conical stainless steel sleeve, and the drainage groove is located at the connection between the telescopic rubber sleeve and the conical stainless steel sleeve.

[0011] As a preferred embodiment of the deep foundation pit site support structure of the present invention, the support assembly includes a fixed column fixedly installed on the outside of the base, a support diagonal rod fixedly installed on the outside of the fixed column, a base plate fixedly installed at the bottom of the support diagonal rod, and a triangular bracket fixedly installed on the outside of the support diagonal rod.

[0012] As a preferred embodiment of the deep foundation pit site support structure of the present invention, the quick fixing mechanism includes a bearing seat, a threaded hole shaft hinged to the inner cavity of the bearing seat, a threaded screw sleeved in the inner cavity of the threaded hole shaft, a limiting shaft hinged to the end of the threaded screw, and a connecting block fixedly installed on the outside of the limiting shaft for fixing the protective cover cloth.

[0013] As a preferred embodiment of the deep foundation pit site support structure of the present invention, the quick fixing mechanism further includes a limiting side plate hinged to the outside of the shaft seat, and a rotating hand rod fixedly installed on the outside of the threaded screw, wherein the limiting shaft is hinged to the outside of the limiting side plate.

[0014] As a preferred embodiment of the deep foundation pit site support structure of the present invention, the bearing mechanism further includes a top plate fixedly installed on the top of the vertical rod, a connecting plate fixedly installed on the bottom of the top plate, and a pad fixedly installed on the outside of the top plate, and the bearing seat fixedly installed on the outside of the top plate.

[0015] As a preferred embodiment of the deep foundation pit site support structure of the present invention, the bottom of the connecting plate is fixedly connected to the top of the base to achieve support, and the pad is close to the fixed surface to achieve dynamic buffering.

[0016] The beneficial effects of this invention are as follows: By forming a double-layer protective system with a conical stainless steel sleeve and a telescopic rubber sleeve, it not only has the impact resistance of metal materials, but also isolates moisture through elastic sealing. The unique drainage groove design avoids the problem of water accumulation, while the quick-fixing mechanism ensures the stable installation of the protective cover and prevents it from falling off due to construction collisions. Through the combination of rigidity and flexibility in the protection, a reliable dynamic sealing effect is achieved while ensuring durability, completely solving the problems of easy damage and water accumulation in traditional plastic protective covers. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective.

[0019] Figure 3 This is a schematic diagram of the positioning mechanism of the present invention.

[0020] Figure 4 This is a partial cross-sectional view of the protective component structure of the present invention.

[0021] Figure 5 This is a side view of the positioning mechanism and support component structure of the present invention.

[0022] Figure 6 For the present invention Figure 3 Enlarged view of the structure at point A in the middle.

[0023] In the picture: 100. Load-bearing mechanism; 110. Base; 120. Vertical rod; 130. Support assembly; 131. Fixed column; 132. Supporting diagonal rod; 133. Base plate; 134. Triangular bracket; 140. Top plate; 150. Connecting plate; 160. Pad plate; 200. Positioning mechanism; 210. Support frame; 220. Rotating shaft; 230. Connecting seat; 240. Protective component; 241. Flange; 242. Tapered stainless steel sleeve; 243. Anchor head; 244. Tension spring; 245. Telescopic rubber sleeve; 246. Drainage channel; 250. Handle; 260. Positioning slot block; 270. Anchor bolt; 280. Adjusting slot seat; 300. Quick-fixing mechanism; 310. Shaft seat; 320. Threaded hole shaft; 330. Threaded screw; 340. Limiting shaft; 350. Connecting block; 360. Limiting side plate; 370. Rotating lever. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth. Example 1

[0028] Reference Figures 1-6 This is the first embodiment of the present invention, which provides a deep foundation pit site support structure. This device includes, The support mechanism 100 includes a base 110, a vertical rod 120 fixedly installed on the top of the base 110, and a support assembly 130 disposed on the outside of the base 110. The positioning mechanism 200 includes a support frame 210 fixedly installed on the top of the base 110, a rotating shaft 220 hinged to the outside of the support frame 210, a connecting seat 230 fixedly installed on the outside of the rotating shaft 220, and a protective component 240 disposed on the outside of the connecting seat 230. And, a quick-fixing mechanism 300 for connecting the protective cover cloth.

[0029] Among them, the bearing mechanism 100 provides stable foundation support, the base 110 and the vertical rod 120 form a vertical load-bearing frame, the support component 130 further enhances lateral stability and effectively disperses the soil pressure on the side wall of the foundation pit, the positioning mechanism 200 achieves multi-angle adjustment through the hinge design, which is convenient to adapt to different foundation pit shapes, and the protective component 240 and the quick fixing mechanism 300 work together to protect key anchoring nodes, simplify the installation process of protective facilities, and improve construction efficiency.

[0030] Specifically, the positioning mechanism 200 also includes a grip bar 250 located outside the protective component 240, a positioning groove block 260 fixedly installed outside the grip bar 250, an anchor rod 270 movably engaged in the inner cavity of the positioning groove block 260, and an adjustment groove seat 280 sleeved on the outside of the anchor rod 270.

[0031] The combination design of the handle 250 and the positioning slot 260 provides a human-machine interface, which makes it easy for operators to accurately adjust the support angle. The sliding fit structure of the anchor 270 and the adjustment slot 280 allows for fine adjustment of the support position to adapt to the deformation requirements of the foundation pit, while ensuring the connection strength. This design combines flexibility and reliability and can cope with dynamic load changes under complex geological conditions.

[0032] Furthermore, the protective assembly 240 includes a flange 241, a tapered stainless steel sleeve 242 fixedly installed on the outside of the flange 241, an anchor head 243 fixedly installed on the outside of the tapered stainless steel sleeve 242, and a tension spring 244 sleeved on the outside of the anchor head 243. The protective assembly 240 also includes a telescopic rubber sleeve 245 sleeved on the outside of the anchor head 243 and the tension spring 244, and a drainage groove 246 formed on the outside of the telescopic rubber sleeve 245.

[0033] The tapered stainless steel sleeve 242 is modularly installed via flange 241. Its tapered structure combines flow guidance and impact resistance. The linkage design of anchor head 243 and tension spring 244 can provide buffering when subjected to sudden loads, avoiding stress concentration. This structure extends the service life of the anchoring system and is especially suitable for high humidity or corrosive environments. The telescopic rubber sleeve 245, as a secondary protective layer, tightly wraps the anchor head 243 and tension spring 244, completely isolating water vapor and corrosive media. The optimized layout of the drainage channel 246 ensures rapid drainage of accumulated water, avoiding electrochemical corrosion caused by liquid retention. This dual sealing and drainage mechanism greatly improves the environmental adaptability of the protective component 240.

[0034] Preferably, the end of the anchor head 243 is fixedly connected to the anchor rod 270, the outer side of the telescopic rubber sleeve 245 is fixedly connected to the outer side of the conical stainless steel sleeve 242, and the drainage groove 246 is located at the connection between the telescopic rubber sleeve 245 and the conical stainless steel sleeve 242.

[0035] Among them, by rigidly connecting the anchor head 243 and the anchor rod 270, a continuous force transmission path is formed to ensure the integrity of the support system. The composite fixing method of the telescopic rubber sleeve 245 and the conical stainless steel sleeve 242 not only ensures the sealing performance, but also allows the components to expand and contract with temperature, avoiding structural damage caused by temperature changes.

[0036] Furthermore, the support assembly 130 includes a fixed post 131 fixedly installed on the outside of the base 110, a support diagonal rod 132 fixedly installed on the outside of the fixed post 131, a base plate 133 fixedly installed on the bottom of the support diagonal rod 132, and a triangular bracket 134 fixedly installed on the outside of the support diagonal rod 132.

[0037] Among them, the support component 130 adopts a triangular stable layout of fixed column 131 and support diagonal rod 132. The base plate 133 expands the stress area to prevent local settlement. The reinforced design of the triangular bracket 134 effectively suppresses lateral deflection, which is especially suitable for soft soil foundations and improves the overturning resistance of the support structure.

[0038] It should be noted that the bearing mechanism 100 also includes a top plate 140 fixedly installed on the top of the vertical rod 120, a connecting plate 150 fixedly installed on the bottom of the top plate 140, and a pad 160 fixedly installed on the outside of the top plate 140. The bearing seat 310 is fixedly installed on the outside of the top plate 140. The bottom of the connecting plate 150 is fixedly connected to the top of the base 110 to achieve support. The pad 160 is close to the fixed surface to achieve dynamic buffering.

[0039] Among them, the top plate 140 serves as a transition component between the bearing mechanism 100 and the positioning mechanism 200. It achieves bidirectional force transmission through the connecting plate 150, avoiding stress concentration at the top of the vertical rod 120. The elastic buffering characteristics of the pad plate 160 can absorb micro-vibrations in the foundation pit, reduce structural noise, and are suitable for the quiet construction requirements in densely populated urban areas. The through-type design of the connecting plate 150 forms a closed force ring between the base 110 and the top plate 140, enhancing the overall rigidity. The dynamic buffering performance of the pad plate 160 can adapt to uneven settlement of the foundation, release stress through local deformation, avoid the risk of cracking of the rigid structure, and extend the service life of the support system.

[0040] In use, a vertical support system is first established through the base 110 and vertical rod 120 of the bearing mechanism 100. At the same time, the triangular support component 130 is used to stabilize the overall structure. Then, the operator adjusts the support angle through the grip 250 of the positioning mechanism 200. The anchor rod 270 slides in the adjustment groove 280 to complete the precise positioning. The conical stainless steel sleeve 242 and the telescopic rubber sleeve 245 of the protective component 240 unfold simultaneously to form double protection. Finally, the installation and fixing of the protective cover can be completed by rotating the hand lever 370 through the quick fixing mechanism 300 to drive the threaded screw 330.

[0041] In summary, the core load-bearing system is formed by the base 110 and vertical rod 120 of the bearing mechanism 100, which is combined with the triangular support component 130 to enhance lateral stability. The positioning mechanism 200 adopts a hinged rotating shaft 220 and adjustable anchor rod 270 to achieve multi-angle adaptive support. The protective component 240 has a double-layer protective design with a conical stainless steel sleeve 242 and a telescopic rubber sleeve 245, which has both mechanical buffering and anti-corrosion sealing functions. The threaded transmission system of the quick fixing mechanism 300 effectively improves the efficiency of the protective cover cloth disassembly and assembly. The top plate 140 and the connecting plate 150 form a closed-loop force structure, which is combined with the dynamic buffering of the elastic pad 160. While ensuring the support strength, it perfectly adapts to the needs of soft soil settlement and urban noise reduction, and realizes safe, efficient and intelligent deep foundation pit support operation. Example 2

[0042] Reference Figure 1 , Figure 3 and Figure 6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the structural design of the quick-fixing mechanism 300 greatly improves the ease of operation and stability while ensuring the fixing strength.

[0043] Furthermore, the quick-fixing mechanism 300 includes a bearing seat 310, a threaded hole shaft 320 hinged to the inner cavity of the bearing seat 310, a threaded screw 330 sleeved in the inner cavity of the threaded hole shaft 320, a limiting shaft 340 hinged to the end of the threaded screw 330, and a connecting block 350 fixedly installed on the outside of the limiting shaft 340 for fixing the protective cover cloth. The quick-fixing mechanism 300 also includes a limiting side plate 360 ​​hinged to the outside of the bearing seat 310, and a rotating handle 370 fixedly installed on the outside of the threaded screw 330. The limiting shaft 340 and the outer side of the limiting side plate 360 ​​are hinged to each other.

[0044] The quick-fixing mechanism 300 achieves linear displacement through the helical transmission of the threaded hole shaft 320 and the threaded screw 330, driving the connecting block 350 to clamp the protective cover cloth. No tools are required during operation, which greatly reduces maintenance time and costs. The hinge constraint between the limiting side plate 360 ​​and the limiting shaft 340 ensures the stability of the movement trajectory of the threaded transmission mechanism and prevents jamming caused by off-center load.

[0045] In use, the operator only needs to place the protective cover in the predetermined position and rotate the lever 370 clockwise to drive the threaded screw 330 to move axially, thereby pushing the connecting block 350 to move towards the fixed surface to complete the clamping; rotating in the opposite direction can quickly release the fixation. The entire operation process does not require any tools. The linkage design of the limiting side plate 360 ​​and the limiting shaft 340 ensures that there will be no deviation during the clamping process, while the lever-type lever design makes the operation more labor-saving and will not cause operator fatigue even during long-term operation.

[0046] In summary, the Quick Fixing Mechanism 300 achieves efficient and reliable fixing of the protective cover, significantly improving construction efficiency. Its user-friendly operation and stable mechanical structure make it particularly suitable for construction site applications that require frequent disassembly and assembly, providing a better solution for deep foundation pit support projects.

[0047] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. Furthermore, for the purpose of providing a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features not relevant to the currently considered best mode for carrying out the invention, or those features not relevant to implementing the invention) may be omitted.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A deep foundation pit site support structure, characterized in that: include, The support mechanism (100) includes a base (110), a vertical rod (120) fixedly installed on the top of the base (110), and a support assembly (130) disposed on the outside of the base (110). The positioning mechanism (200) includes a support frame (210) fixedly installed on the top of the base (110), a pivot (220) hinged to the outside of the support frame (210), a connecting seat (230) fixedly installed on the outside of the pivot (220), and a protective component (240) disposed on the outside of the connecting seat (230). And, a quick-fixing mechanism (300) for connecting the protective cover fabric.

2. The deep foundation pit site support structure according to claim 1, characterized in that: The positioning mechanism (200) also includes a grip (250) located outside the protective component (240), a positioning groove (260) fixedly installed on the outside of the grip (250), an anchor (270) movably locked in the cavity of the positioning groove (260), and an adjustment groove seat (280) sleeved on the outside of the anchor (270).

3. The deep foundation pit site support structure according to claim 2, characterized in that: The protective assembly (240) includes a flange (241), a tapered stainless steel sleeve (242) fixedly installed on the outside of the flange (241), an anchor head (243) fixedly installed on the outside of the tapered stainless steel sleeve (242), and a tension spring (244) sleeved on the outside of the anchor head (243).

4. The deep foundation pit site support structure according to claim 3, characterized in that: The protective assembly (240) also includes a telescopic rubber sleeve (245) sleeved on the outside of the anchor head (243) and the tension spring (244), and a drainage groove (246) opened on the outside of the telescopic rubber sleeve (245).

5. The deep foundation pit site support structure according to claim 4, characterized in that: The end of the anchor head (243) is fixedly connected to the anchor rod (270), the outer side of the telescopic rubber sleeve (245) is fixedly connected to the outer side of the conical stainless steel sleeve (242), and the drainage groove (246) is located at the connection between the telescopic rubber sleeve (245) and the conical stainless steel sleeve (242).

6. The deep foundation pit site support structure according to claim 5, characterized in that: The support assembly (130) includes a fixed column (131) fixedly installed on the outside of the base (110), a support diagonal rod (132) fixedly installed on the outside of the fixed column (131), a base plate (133) fixedly installed on the bottom of the support diagonal rod (132), and a triangular bracket (134) fixedly installed on the outside of the support diagonal rod (132).

7. The deep foundation pit site support structure according to claim 6, characterized in that: The quick-fixing mechanism (300) includes a bearing seat (310), a threaded hole shaft (320) hinged to the inner cavity of the bearing seat (310), a threaded screw (330) sleeved in the inner cavity of the threaded hole shaft (320), a limiting shaft (340) hinged to the end of the threaded screw (330), and a connecting block (350) fixedly installed on the outside of the limiting shaft (340) for fixing the protective cover cloth.

8. The deep foundation pit site support structure according to claim 7, characterized in that: The quick-fixing mechanism (300) also includes a limiting side plate (360) hinged to the outside of the bearing seat (310) and a rotating handle (370) fixedly installed on the outside of the threaded screw (330). The limiting shaft (340) is hinged to the outside of the limiting side plate (360).

9. The deep foundation pit site support structure according to claim 8, characterized in that: The bearing mechanism (100) further includes a top plate (140) fixedly installed on the top of the vertical rod (120), a connecting plate (150) fixedly installed on the bottom of the top plate (140), and a pad (160) fixedly installed on the outside of the top plate (140), and the bearing seat (310) is fixedly installed on the outside of the top plate (140).

10. The deep foundation pit site support structure according to claim 9, characterized in that: The bottom of the connecting plate (150) is fixedly connected to the top of the base (110) to provide support, and the pad (160) is close to the fixed surface to provide dynamic cushioning.

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