Pile-slab wall supporting device for foundation pit support

Abstract

The utility model discloses a kind of pile board wall supporting devices for foundation pit support, including support mechanism and several groups of steel sheet pile connected head to tail and constitute frame structure, the support mechanism is set between the two sides adjacent of the frame structure and with the two sides adjacent constitute triangle reinforcing structure, and the length of the support mechanism is adjustable and can be locked;The pile board wall supporting device for foundation pit support of the utility model is supported to foundation pit by steel sheet pile, while forming multiple force transmission paths while supporting steel sheet pile by setting support mechanism, it is beneficial to stress dispersion, to improve the stability and security of overall device.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, and in particular to a pile-slab wall support device for foundation pit support. Background Technology

[0002] Sheet piles are hot-rolled or cold-formed steel sections with interlocking or clamping jaws. After being driven into the ground, they interlock and interlock to form a continuous sheet pile retaining wall for retaining soil and water. They offer advantages such as rapid construction, the ability to remove and reuse the sheet piles after the foundation pit is constructed, and good economic efficiency. However, due to their relatively low lateral stiffness and large deformation, the top of the sheet pile retaining wall is subjected to lateral pressure after the backfill is cleared from the foundation pit. Lacking effective support, this can easily lead to tilting of the top. The conventional approach is to install support mechanisms to support the sidewalls of the sheet pile retaining wall. However, these support mechanisms can only be modified by cutting and cannot be flexibly adjusted according to site conditions, resulting in non-reusability and increased construction costs.

[0003] Therefore, how to provide support for sheet pile retaining walls while ensuring that the support mechanism is flexibly adjustable and reusable is a technical problem that urgently needs to be solved in the existing technology. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a pile-sheet wall support device for foundation pit support, which provides support for the steel sheet pile retaining wall by setting a support mechanism. At the same time, the support mechanism can be flexibly adjusted according to the on-site construction conditions, which can improve the applicability of the device.

[0005] The present invention relates to a pile-sheet wall support device for foundation pit support, comprising a support mechanism and several sets of steel sheet piles connected end to end to form a frame structure. The support mechanism is arranged between adjacent two sides of the frame structure and forms a triangular reinforcement structure with the adjacent two sides. The length of the support mechanism is adjustable and can be locked.

[0006] Furthermore, the support device also includes several sets of reinforcing components respectively disposed on the inner sidewall of the frame structure. Each set of reinforcing components includes a reinforcing rod and several connecting frames. The reinforcing rod is detachably fixed to the inner sidewall of the frame structure through several connecting frames, and the several connecting frames are detachably and evenly distributed on the inner sidewall of the frame structure.

[0007] Furthermore, the connecting frame has a U-shaped structure, which is fastened to the reinforcing rod and detachably fixed to the inner wall of the frame structure.

[0008] Furthermore, the support mechanism consists of several groups, with each group of support mechanisms corresponding to one of two adjacent reinforcing rods. The two ends of each group of support mechanisms are respectively hinged to the set positions of the two adjacent reinforcing rods and together with the two adjacent reinforcing rods, they form the triangular reinforcing structure.

[0009] Furthermore, the support mechanism includes a sliding frame, sliding rod I, and sliding rod II. One end of sliding rod I is hinged to one of the reinforcing rods, and the other end of sliding rod I slides through the sliding frame. One end of sliding rod II is hinged to another reinforcing rod adjacent to one of the reinforcing rods, and the other end of sliding rod II slides through the sliding frame. The positions of sliding rod I and sliding rod II relative to the sliding frame are adjustable and can be locked, so that the length of the support mechanism is adjustable and can be locked.

[0010] Furthermore, the support mechanism also includes a threaded column, two fixed plates, and two threaded sleeves. The two fixed plates are disposed inside the sliding frame. The threaded column passes through the two fixed plates in sequence and is rotatably connected to the two fixed plates. The two threaded sleeves are respectively sleeved on both ends of the threaded column and threadedly engaged with the threaded column. The sliding rod I and sliding rod II are respectively fixedly connected to the outer periphery of the two threaded sleeves, and the two ends of the threaded column extend into the two sliding rods I and sliding rod II respectively.

[0011] Furthermore, the support mechanism also includes two limiting blocks, which are fixedly disposed at both ends of the threaded column.

[0012] Furthermore, the support mechanism also includes a movable plate and two sliders disposed within the sliding frame. The two sliders are disposed one-to-one on the outer periphery of sliding rod I and sliding rod II. The movable plate is disposed on the top and bottom of the sliders and forms an I-shaped structure with the sliders. The I-shaped structure is slidably disposed on the sliding frame.

[0013] Furthermore, the support mechanism also includes an operating part, which is fixedly sleeved on the threaded column and located between two fixed plates.

[0014] Furthermore, the reinforcing rod is provided with a hinge portion, and the sliding rod I and sliding rod II are respectively provided with hinge seats that cooperate with the hinge portion.

[0015] The beneficial effects of this utility model are as follows: The pile-sheet wall support device for foundation pit support of this utility model forms a frame structure by setting several sets of steel sheet piles, and the frame structure supports the foundation pit, which can prevent the foundation pit from collapsing. At the same time, by setting a support mechanism between the two adjacent sides of the frame structure, the steel sheet piles can be supported and multiple force transmission paths can be formed. When the steel sheet piles are subjected to lateral pressure, the force can be dispersed by the support mechanism, thereby improving the stability of the device. Moreover, the length of the support mechanism is adjustable and can be locked, so it can be adjusted according to the actual conditions of the construction site, improving the flexibility of the device. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a structural schematic diagram of the pile-slab wall support device for foundation pit support according to this utility model.

[0018] Figure 2 This is a structural diagram showing the fit between the reinforcing rod and the connecting frame.

[0019] Figure 3 This is a cross-sectional view of the support mechanism.

[0020] Figure label:

[0021] 1. Sheet pile; 2. Connecting frame; 3. Reinforcing rod; 4. Support mechanism; 41. Sliding frame; 42. Fixing plate; 43. Threaded column; 44. Operating part; 45. Threaded sleeve; 46. Sliding rod I; 47. Sliding block; 48. Movable plate; 49. Sliding rod II; 5. Hinge part; 6. Hinge seat. Detailed Implementation

[0022] Figure 1 This is a structural schematic diagram of the pile-slab wall support device for foundation pit support according to this utility model. Figure 2 This is a structural diagram showing the fit between the reinforcing rod and the connecting frame. Figure 3 A sectional view of the supporting mechanism, such as Figure 1-3 As shown: This embodiment of the pile-sheet wall support device for foundation pit support includes a support mechanism 4 and several sets of steel sheet piles 1 connected end-to-end to form a frame structure. The support mechanism 4 is disposed between adjacent two sides of the frame structure and forms a triangular reinforcement structure with the adjacent two sides. The length of the support mechanism 4 is adjustable and can be locked. The steel sheet piles 1 are in several sets, such as... Figure 1As shown, the sheet piles 1 are equipped with locking buckles at both ends, and adjacent sheet piles 1 are connected by locking buckles. The specific structure of the sheet piles 1 is an application of existing technology and will not be described in detail here. By connecting several groups of sheet piles 1 end to end to form a frame structure, the frame structure can support the sidewalls of the foundation pit, thus preventing the foundation pit from collapsing. By setting the support mechanism 4 to form a triangular reinforcement structure with the frame structure, the support mechanism 4 can provide further support for the sheet piles 1, which is beneficial to improving the structural stability. At the same time, the length of the support mechanism 4 is adjustable, which can be adjusted according to the size of the frame structure formed by several groups of sheet piles 1, so as to flexibly adjust according to the on-site construction conditions and improve the usability of the device. The support mechanism 4 can be a telescopic rod or a hydraulic rod, etc., which will not be described in detail here.

[0023] In this embodiment, the support device further includes several sets of reinforcing components respectively disposed on the inner sidewall of the frame structure. Each set of reinforcing components includes a reinforcing rod 3 and several connecting frames 2. The reinforcing rod 3 is detachably fixed to the inner sidewall of the frame structure through several connecting frames 2, and the several connecting frames 2 are detachably and evenly distributed on the inner sidewall of the frame structure.

[0024] Specifically, such as Figure 1 As shown, the reinforcing components consist of four groups. The reinforcing rods 3 are generally rectangular structures. Each reinforcing rod 3 is detachably fixed to the inner wall of the frame structure via several connecting brackets 2. In this structure, the inner direction is away from the inner wall of the pit, and the outer direction is close to the inner wall of the pit. Figure 2 As shown, the connecting frame 2 is generally fixed to the inner wall of the frame structure by bolts. Of course, the frame structure and the connecting frame 2 are provided with mounting holes for bolts to pass through. Generally, each reinforcing rod 3 is provided with three connecting frames 2. The three connecting frames 2 are evenly distributed on the inner wall of the frame structure to improve the stability of the connection between the reinforcing rod 3 and the frame structure, which can improve the stability of the support of the frame structure.

[0025] In this embodiment, the connecting frame 2 has a U-shaped structure, which is fastened to the reinforcing rod 3 and detachably fixed to the inner wall of the frame structure. Figure 2 As shown, the connecting frame 2 is fastened to the reinforcing rod 3. That is, the connecting frame 2 is provided with a U-shaped opening groove, and the reinforcing rod 3 passes through the U-shaped opening groove, which can enhance the limiting effect on the reinforcing rod 3 and prevent the reinforcing rod 3 from coming out.

[0026] In this embodiment, the support mechanism 4 consists of several groups, each group corresponding to one of two adjacent reinforcing rods 3. The two ends of each group of support mechanisms 4 are hinged to predetermined positions on the two adjacent reinforcing rods 3, forming the triangular reinforcing structure with the two adjacent reinforcing rods 3. Figure 1As shown, there are four sets of support mechanisms 4, which are respectively set between two adjacent reinforcing rods 3. At the same time, the two ends of the support mechanisms 4 are hinged to the middle of the reinforcing rods 3 to form a stable triangular reinforcing structure. By forming a triangular reinforcing structure, the structural stability can be improved. At the same time, the multiple sets of support mechanisms 4 and the reinforcing rods 3 form a ring-shaped force transmission path, which is conducive to the distribution of force. When one side wall of the frame structure is subjected to external force, the force can be transmitted to the adjacent side walls through the support mechanisms 4, thereby further improving the support strength of the frame structure and thus improving the safety of the entire device.

[0027] In this embodiment, the support mechanism 4 includes a sliding frame 41, a sliding rod I 46, and a sliding rod II 49. One end of the sliding rod I 46 is hinged to one of the reinforcing rods 3, and the other end of the sliding rod I 46 slides through the sliding frame 41. One end of the sliding rod II 49 is hinged to another reinforcing rod 3 adjacent to one of the reinforcing rods 3, and the other end of the sliding rod II 49 slides through the sliding frame 41. The positions of the sliding rod I 46 and the sliding rod II 49 relative to the sliding frame 41 are adjustable and can be locked, so that the length of the support mechanism 4 is adjustable and can be locked.

[0028] Specifically, such as Figure 1 As shown, one end of sliding rod I 46 and sliding rod II 49 are respectively hinged to two adjacent reinforcing rods 3, and the other end of sliding rod I 46 and sliding rod II 49 slides through the sliding frame 41. Thus, by adjusting the distance between the ends of the two sliding rods I 46 and sliding rod II 49 located in the sliding frame 41, the length of the support mechanism 4 can be adjusted.

[0029] In this embodiment, the support mechanism 4 further includes a threaded post 43, two fixed plates 42, and two threaded sleeves 45. The two fixed plates 42 are disposed inside the sliding frame 41. The threaded post 43 passes through the two fixed plates 42 in sequence and is rotatably connected to the two fixed plates 42. The two threaded sleeves 45 are respectively sleeved on both ends of the threaded post 43 and threadedly engaged with the threaded post 43. The sliding rod I 46 and sliding rod II 49 are respectively fixedly connected to the outer periphery of the two threaded sleeves 45, and both ends of the threaded post 43 extend into the two sliding rods I 46 and sliding rod II 49 respectively.

[0030] Specifically, such as Figure 3As shown, the threaded post 43 is disposed within the sliding frame 41. Two fixed plates 42 are spaced apart along the axial direction of the sliding frame 41 and are fixedly connected to the sliding frame 41. The two fixed plates 42 have threaded holes through which the threaded post 43 passes. Sliding rods I 46 and II 49 are hollow structures. When the threaded sleeve 45 is fitted onto the threaded post 43, both ends of the threaded post 43 are located within the sliding rods I 46 and II 49, respectively. The threaded post 43 has two external threads that engage with the threaded sleeve 45, and the two external threads have opposite directions of rotation. Therefore, by rotating the threaded post 43 clockwise or counterclockwise, the two threaded sleeves 45 can move in opposite directions or towards each other. This allows for length adjustment of the support mechanism 4. The sliding rods I 46 and II 49 can be fixedly mounted on the outer periphery of the threaded sleeve 45 by welding.

[0031] In this embodiment, the support mechanism 4 further includes two limiting blocks, which are respectively fixedly disposed at both ends of the threaded post 43. During assembly, the threaded sleeve 45 is first fitted onto the threaded post 43, then the limiting blocks are welded to both ends of the threaded post 43, and finally the sliding rod I 46 and sliding rod II 49 are welded to the outer periphery of the threaded sleeve 45. By setting the limiting blocks, the sliding rod I 46 and sliding rod II 49 can be prevented from separating from the threaded post 43 during sliding.

[0032] In this embodiment, the support mechanism 4 further includes a movable plate 48 and two sliders 47 disposed in the sliding frame 41. The two sliders 47 are disposed one-to-one on the outer periphery of the sliding rod I 46 and the sliding rod II 49. The movable plate 48 is disposed on the top and bottom of the sliders 47 and forms an I-shaped structure with the sliders 47. The I-shaped structure is slidably disposed on the sliding frame 41.

[0033] Specifically, such as Figure 3 As shown, each set of support mechanisms 4 includes two movable plates 48, and each movable plate 48 includes two sliders 47. The two movable plates 48 are set inside the sliding frame 41. The two movable plates 48 are located one-to-one on the outside of the two fixed plates 42, with the outside being the side closest to the threaded sleeve 45. The two sliders 47 are respectively set at the top and bottom of the movable plates 48, thus forming an I-shaped structure with the movable plates 48. The I-shaped structure is slidably connected to the sliding frame 41. Generally, the sliding frame 41 is a frame structure, which facilitates the assembly and installation of various components. At the same time, by forming an I-shaped structure, the sliding stability of sliding rod I 46 and sliding rod II 49 when sliding relative to the sliding frame 41 can be improved.

[0034] In this embodiment, the support mechanism 4 further includes an operating part 44, which is fixedly sleeved on the threaded post 43 and located between two fixed plates 42. The operating part 44 can be a hexagonal prism structure, fixedly mounted on the threaded post 43 and located between the two fixed plates 42, so that during use, the user can hold the operating part 44 and rotate the threaded post 43 to adjust the length of the support mechanism 4, making it convenient for the user to use.

[0035] In this embodiment, the reinforcing rod 3 is provided with a hinge portion 5, and the sliding rod I 46 and sliding rod II 49 are respectively provided with hinge seats 6 that cooperate with the hinge portion 5. The hinge portion 5 can be fixedly connected to the reinforcing rod 3 by welding, and the hinge seats 6 can be fixedly connected to the sliding rod I 46 and sliding rod II 49 respectively by welding. The hinge seats 6 are provided with an opening slot, and the hinge seats 6 and the hinge portion 5 are provided with hinge holes for the hinge shaft to pass through. The hinge shaft can be a bolt, and the bolts pass through the hinge holes one by one and are fixed by nuts.

[0036] The present invention relates to a pile-sheet wall support device for foundation pit support, which uses a pile driver to insert several sets of steel sheet piles 1 into the foundation pit. At this time, the several sets of steel sheet piles 1 form a frame structure. Then, a support mechanism 4 is installed, and the length of the support mechanism 4 is adjusted by rotating the operating part 44 according to the size of the frame structure until a stable support is formed for the frame structure.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model 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 this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pile-slab wall support device for foundation pit support, characterized in that: It includes a support mechanism and several sets of steel sheet piles connected end to end to form a frame structure. The support mechanism is set between the adjacent two sides of the frame structure and forms a triangular reinforcement structure with the adjacent two sides. The length of the support mechanism is adjustable and can be locked.

2. The pile-slab wall support device for foundation pit support according to claim 1, characterized in that: The support device also includes several sets of reinforcing components respectively disposed on the inner sidewall of the frame structure. Each set of reinforcing components includes a reinforcing rod and several connecting frames. The reinforcing rod is detachably fixed to the inner sidewall of the frame structure through several connecting frames, and the several connecting frames are detachably and evenly distributed on the inner sidewall of the frame structure.

3. The pile-slab wall support device for foundation pit support according to claim 2, characterized in that: The connecting frame has a U-shaped structure, which is fastened to the reinforcing rod and detachably fixed to the inner wall of the frame structure.

4. The pile-slab wall support device for foundation pit support according to claim 2, characterized in that: The support mechanism consists of several groups, which are arranged one-to-one between two adjacent reinforcing rods. The two ends of each group of support mechanisms are respectively hinged to the two adjacent reinforcing rods at predetermined positions and together with the two adjacent reinforcing rods, they form the triangular reinforcing structure.

5. The pile-slab wall support device for foundation pit support according to claim 4, characterized in that: The support mechanism includes a sliding frame, sliding rod I, and sliding rod II. One end of sliding rod I is hinged to one of the reinforcing rods, and the other end of sliding rod I slides through the sliding frame. One end of sliding rod II is hinged to another reinforcing rod adjacent to one of the reinforcing rods, and the other end of sliding rod II slides through the sliding frame. The positions of sliding rod I and sliding rod II relative to the sliding frame are adjustable and can be locked, so that the length of the support mechanism is adjustable and can be locked.

6. The pile-slab wall support device for foundation pit support according to claim 5, characterized in that: The support mechanism also includes a threaded column, two fixed plates, and two threaded sleeves. The two fixed plates are disposed inside the sliding frame. The threaded column passes through the two fixed plates in sequence and is rotatably connected to the two fixed plates. The two threaded sleeves are respectively sleeved on both ends of the threaded column and are threadedly engaged with the threaded column. The sliding rod I and sliding rod II are respectively fixedly connected to the outer periphery of the two threaded sleeves, and the two ends of the threaded column extend into the two sliding rods I and sliding rod II respectively.

7. The pile-slab wall support device for foundation pit support according to claim 6, characterized in that: The support mechanism also includes two limiting blocks, which are fixedly installed at both ends of the threaded column.

8. The pile-slab wall support device for foundation pit support according to claim 6, characterized in that: The support mechanism also includes a movable plate and two sliders disposed within the sliding frame. The two sliders are disposed one-to-one on the outer periphery of sliding rod I and sliding rod II. The movable plate is disposed on the top and bottom of the sliders and forms an I-shaped structure with the sliders. The I-shaped structure is slidably disposed on the sliding frame.

9. The pile-slab wall support device for foundation pit support according to claim 6, characterized in that: The support mechanism also includes an operating part, which is fixedly sleeved on the threaded column and located between two fixed plates.

10. The pile-slab wall support device for foundation pit support according to claim 6, characterized in that: The reinforcing rod is provided with a hinge portion, and the sliding rod I and sliding rod II are respectively provided with hinge seats that cooperate with the hinge portion.

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