Deep foundation pit supporting structure

Abstract

The utility model discloses a deep foundation pit supporting structure which comprises an enclosing purlin, a steel support and a bracket, the enclosing purlin is horizontally supported on the inner wall of a deep foundation pit, a groove is formed in the upper side of the enclosing purlin, the bracket comprises two half frames which are arranged in a bilateral symmetry mode, each half frame comprises a connecting plate, a hook plate, a support and a supporting rod, the hook plate is fixedly connected to the upper side of the connecting plate, the hook plate hooks the groove, and the supporting rod is arranged on the support. The connecting plate is attached to the inner side of the enclosing purlin, the support is fixedly connected to the inner side of the connecting plate, the supporting rod is obliquely arranged, the upper end of the supporting rod is installed on the support, the lower end of the supporting rod is detachably connected with the lower end of the supporting rod of the other half frame, and the end of the steel support is placed on the supporting rod of the bracket and locked on the enclosing purlin. According to the deep foundation pit supporting structure, the bracket supports the end of the steel support, the steel support is prevented from shaking, and installation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of deep foundation pit technology, and in particular to a deep foundation pit support structure. Background Technology

[0002] In deep foundation pit engineering, it is necessary to use a support structure to support the sidewalls of the deep foundation pit to prevent the sidewalls of the deep foundation pit from deforming inward. The existing deep foundation pit support structure includes walers and steel supports. The walers are installed on the inner wall of the deep foundation pit, and the steel supports support the deep foundation pit through the walers.

[0003] The existing steel supports require a crane to lift them into the foundation pit during installation, and then the ends of the steel supports are fixed to the walers with fasteners. Because the crane's lifting ropes are prone to swaying, the ends of the steel supports are also prone to swaying, making it inconvenient to install the steel supports. Utility Model Content

[0004] To address the shortcomings of existing deep foundation pit support structures, such as the inconvenience of steel support installation, this utility model proposes a deep foundation pit support structure with a bracket supporting the end of the steel support to prevent swaying and facilitate installation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A deep foundation pit support structure includes a waler, steel supports, and brackets. The waler is horizontally supported on the inner wall of the deep foundation pit. A groove is provided on the upper side of the waler. The bracket includes two symmetrically arranged half-frames. Each half-frame includes a connecting plate, a hook plate, a bracket, and a support rod. The hook plate is fixedly connected to the upper side of the connecting plate and hooks into the groove, so that the connecting plate is attached to the inner side of the waler. The bracket is fixedly connected to the inner side of the connecting plate. The support rod is inclined. The upper end of the support rod is installed on the bracket, and the lower end of the support rod is detachably connected to the lower end of the support rod of the other half-frame. The end of the steel support rests on the support rod of the bracket and is locked to the waler.

[0007] With the above setup, firstly, the bracket can support the end of the steel support, facilitating the installation of the steel support; secondly, after the steel support is installed, the two half-frames can be separated, making it convenient to install the bracket in other positions on the waler and install other steel supports.

[0008] Furthermore, the half-frame also includes a slider and a lifting device. The slider is slidably connected to the support and driven by the lifting device. The upper end of the support rod is fixedly connected to the slider.

[0009] The above settings allow for easy adjustment of the support rods to regulate the height of the steel support end.

[0010] Furthermore, the bracket is provided with a guide groove extending vertically, the slider is slidably connected in the guide groove, and the lifting device includes a screw that extends vertically and is rotatably connected to the bracket, and the screw is threadedly connected to the slider.

[0011] With the above settings, rotating the screw drives the slider to move up and down.

[0012] Furthermore, the upper end of the screw protrudes from the upper side of the bracket, and the lifting device also includes a handwheel fixedly connected to the upper end of the screw.

[0013] The above settings facilitate manual rotation of the screw.

[0014] Furthermore, the half-frame also includes a roller rotatably connected to the upper side of the support rod.

[0015] The above configuration facilitates the forward and backward movement of the steel support end.

[0016] Furthermore, lifting rings are fixedly connected to the upper sides of both ends of the steel support.

[0017] The above settings facilitate the hoisting of steel supports by cranes.

[0018] Furthermore, the lower ends of the support rods are locked together with bolts.

[0019] The above settings facilitate the connection and disconnection of the lower end of the support rod.

[0020] Furthermore, the support frame is equipped with multiple triangular weight-reduction holes.

[0021] The above design helps to reduce the weight of the support frame and facilitates the handling of the bracket. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the support structure for an embodiment.

[0023] Figure 2 This is a top view of the support structure in an embodiment.

[0024] Figure 3 for Figure 2 AA sectional view. Detailed Implementation

[0025] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0026] like Figures 1 to 3As shown, a deep foundation pit support structure includes a waler 3, a steel support 4, and a bracket. The waler 3 is horizontally supported on the inner wall of the deep foundation pit. A groove 5 is provided on the upper side of the waler 3. The bracket includes two symmetrically arranged half-frames. Each half-frame includes a connecting plate 6, a hook plate 7, a bracket 8, and a support rod 9. The hook plate 7 is fixedly connected to the upper side of the connecting plate 6 and hooks the groove 5, so that the connecting plate 6 is attached to the inner side of the waler 3. The bracket 8 is fixedly connected to the inner side of the connecting plate 6. The support rod 9 is inclined. The upper end of the support rod 9 is installed on the bracket 8, and the lower end of the support rod 9 is detachably connected to the lower end of the support rod 9 of the other half-frame. The end of the steel support 4 rests on the support rod 9 of the bracket and is locked to the waler 3.

[0027] With the above settings, firstly, the bracket can support the end of the steel support 4, making it convenient to install the steel support 4; secondly, after the steel support 4 is installed, the two half-frames can be separated, making it convenient to install the bracket to other positions of the waler 3 and install other steel supports 4.

[0028] Figure 1 The front, back, left, and right directions of the support structure are indicated. The walers 3 are steel beams, horizontally installed on the inner walls of opposite sides of the deep foundation pit. Each waler 3 is equipped with a bracket, and the groove 5 extends along the length of the waler 3 to facilitate left and right adjustment of the bracket position. At this time, the lower ends of the support rods 9 of the two half-frames of each bracket are detachably connected, and the two support rods 9 form an upward-opening V-shaped structure that can support steel supports 4 of different outer diameters. When installing the steel supports 4, a crane is used to lift the steel supports 4 into the deep foundation pit, and the ends of the steel supports 4 are placed on the support rods 9. The ends of the steel supports 4 will not wobble, making it easy to fix the ends of the steel supports 4 to the walers 3 with fasteners.

[0029] After the steel support 4 is installed, the lower end of the bracket 9 is separated from the lower end of the other bracket 9. At this time, the two half-frames can be separated to the left and right. Then the bracket is installed in other positions of the waler 3. The lower ends of the brackets 9 can be detachably connected together to facilitate the installation of the next steel support 4.

[0030] As one implementation, the half-frame also includes a slider 10 and a lifting device. The slider 10 is slidably connected to the support 8 and driven by the lifting device. The upper end of the support rod 9 is fixedly connected to the slider 10.

[0031] The above settings allow for easy adjustment of the support rod 9 to adjust the height of the end of the steel support 4.

[0032] As one implementation, the bracket 8 is provided with a guide groove 11 extending vertically, the slider 10 is slidably connected in the guide groove 11, and the lifting device includes a screw 12, which extends vertically and is rotatably connected to the bracket 8. The screw 12 is threadedly connected to the slider 10.

[0033] With the above settings, rotating screw 12 drives slider 10 to move up and down.

[0034] Specifically, the width of the guide groove 11 is adapted to the width of the slider 10. The slider 10 can only move up and down in the guide groove 11. When the screw 12 is rotated, the slider 10 moves up or down after the screw 12 rotates relative to the slider 10.

[0035] As one implementation, the upper end of the screw 12 protrudes from the upper side of the bracket 8, and the lifting device also includes a handwheel 13 fixedly connected to the upper end of the screw 12.

[0036] The above settings facilitate manual rotation of screw 12.

[0037] As one implementation, the half-frame also includes a roller 14 rotatably connected to the upper side of the support rod 9.

[0038] The above settings facilitate the forward and backward movement of the four ends of the steel support.

[0039] In reality, some steel supports 4 can extend and retract at their ends to adjust their length. After the ends of the steel supports 4 are placed on the upper side of the support rod 9, the roller 14 can reduce the movement resistance of the ends of the steel supports 4.

[0040] As one implementation method, lifting rings 15 are fixedly connected to the upper sides of both ends of the steel support 4.

[0041] The above settings facilitate the hoisting of steel support 4 by the crane.

[0042] As one implementation method, the lower ends of the support rods 9 are locked together by bolts 16.

[0043] The above settings facilitate the connection and disconnection of the lower end of the support rod 9.

[0044] As one implementation method, the bracket 8 is provided with multiple triangular weight-reducing holes 17.

[0045] The above design helps to reduce the weight of bracket 8 and facilitates the handling of the bracket.

[0046] Each bracket 8 is provided with multiple triangular weight-reducing holes 17, so that the bracket 8 is in the shape of a truss, which reduces weight while the bracket 8 has good structural strength.

[0047] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A deep foundation pit support structure, characterized in that, The system includes a waler, steel supports, and brackets. The waler is horizontally supported on the inner wall of the deep foundation pit. A groove is provided on the upper side of the waler. The brackets include two symmetrically arranged half-frames. Each half-frame includes a connecting plate, a hook plate, a bracket, and a support rod. The hook plate is fixedly connected to the upper side of the connecting plate and hooks into the groove, so that the connecting plate is attached to the inner side of the waler. The bracket is fixedly connected to the inner side of the connecting plate. The support rod is inclined and its upper end is mounted on the bracket. The lower end of the support rod is detachably connected to the lower end of the support rod of the other half-frame. The end of the steel support rests on the support rod of the bracket and is locked to the waler.

2. The deep foundation pit support structure according to claim 1, characterized in that, The half-frame also includes a slider and a lifting device. The slider is slidably connected to the support and driven by the lifting device. The upper end of the support rod is fixedly connected to the slider.

3. The deep foundation pit support structure according to claim 2, characterized in that, The bracket is provided with a guide groove extending vertically, the slider is slidably connected in the guide groove, the lifting device includes a screw, the screw extends vertically and is rotatably connected to the bracket, and the screw is threadedly connected to the slider.

4. A deep foundation pit support structure according to claim 3, characterized in that, The upper end of the screw protrudes from the upper side of the bracket, and the lifting device also includes a handwheel fixedly connected to the upper end of the screw.

5. A deep foundation pit support structure according to claim 1, characterized in that, The half-frame also includes a roller rotatably connected to the upper side of the support rod.

6. A deep foundation pit support structure according to claim 1, characterized in that, The steel support is fixedly connected to the upper sides of both ends with lifting rings.

7. A deep foundation pit support structure according to claim 1, characterized in that, The lower ends of the support rods are locked together by bolts.

8. A deep foundation pit support structure according to claim 1, characterized in that, The support frame is provided with multiple triangular weight-reducing holes.

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