Stabilizing frame for supporting soft soil layer foundation pit

Abstract

The utility model relates to the technical field of foundation pit supporting, and discloses a stabilizing frame for supporting a foundation pit in a soft soil layer, which comprises two bases, a cross beam is fixedly connected to the top ends of the bases, a connecting piece is fixedly connected to the left side of the top end of the cross beam, an inclined strut is rotatably connected in the connecting piece, and a stand column is fixedly connected to the top end of the cross beam. Adjusting assemblies are arranged on the sides, close to each other, of the two stand columns, and supporting assemblies are arranged on the sides, close to each other, of the two inclined struts. The adjusting assembly comprises a first mounting frame, and the first mounting frame is fixedly connected to the close sides of the two stand columns. According to the supporting structure, the angle between the stand column and the inclined strut can be accurately adjusted through accurate control of the first hydraulic cylinder, the first telescopic rod and the sliding block, the stability of the supporting structure is ensured, accurate supporting and adjusting can be provided under the condition that the shape change of a foundation pit is large, and the phenomenon that the supporting structure inclines or is not stable is avoided.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, and in particular to a stabilizing frame for foundation pit support in soft soil layers. Background Technology

[0002] In modern construction and engineering, foundation pit support is a crucial technical measure to ensure soil stability and construction safety during deep foundation pit excavation. This is especially true in unstable soil environments such as soft soil layers, where the soil has low bearing capacity, unstable structure, and is prone to settlement and slippage. Therefore, the requirements for the foundation pit support system are particularly stringent. The characteristics of soft soil layers mean they cannot directly support structures like hard soil layers. Without an effective support system during construction, this can lead to soil collapse, displacement of surrounding buildings, or other catastrophic accidents.

[0003] Traditional foundation pit support methods (such as soil nailing walls, retaining piles, and slope protection) can solve stability problems during foundation pit construction to a certain extent. However, foundation pits in soft soil layers are often irregular and uneven in depth, making it difficult for traditional support methods to accurately adapt to these changes. This can easily lead to unstable or insufficient support. Furthermore, due to the special properties of the soil, construction in soft soil layers often requires extensive manual intervention to adjust the height and angle of the support structure, resulting in low work efficiency, long construction periods, and significant safety risks. Moreover, traditional support structures lack flexible adjustment mechanisms, especially when the shape, depth, and soil quality of the foundation pit change, making it difficult to quickly and accurately adjust the support structure and affecting the support effect. To address these problems, those skilled in the art have proposed a stabilizing frame for foundation pit support in soft soil layers. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a stabilizing frame for foundation pit support in soft soil layers, which aims to improve the problem that traditional foundation pit support methods are difficult to accurately adapt to changes in soft soil foundation pits, and are prone to causing unstable or insufficient support.

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

[0006] A stabilizing frame for foundation pit support in soft soil includes two bases. A crossbeam is fixedly connected to the top of each base. A connector is fixedly connected to the left side of the top of each crossbeam. An inclined brace is rotatably connected inside the connector. A column is fixedly connected to the top of each crossbeam. An adjustment component is provided on the adjacent side of the two columns. A support component is provided on the adjacent side of the two inclined braces.

[0007] The adjustment assembly includes a mounting frame, which is fixedly connected to one side of two columns. A hydraulic cylinder is installed on both the front and rear sides of the inner wall of the mounting frame. A telescopic rod is installed inside the column. A connecting block is fixedly connected to the output end of the hydraulic cylinder. A slider is rotatably connected to both the front and rear sides of the connecting block. A sliding groove is provided on the lower side of the diagonal brace.

[0008] Furthermore, the support assembly includes a second mounting frame, which is fixedly connected to one side of the two diagonal braces. Hydraulic cylinders are installed on both the front and rear sides of the inner wall of the second mounting frame. A telescopic rod is installed inside the diagonal brace. The output end of the hydraulic cylinder is rotatably connected to a stop plate.

[0009] Furthermore, a universal joint is rotatably connected to the right side of the crossbeam, and an anti-slip component is provided on the outside of the universal joint.

[0010] Furthermore, a support plate is abutting the outside of the omnidirectional angle.

[0011] Furthermore, the top end of the telescopic rod is fixedly connected to the bottom end of the connecting block, and the outside of the slider is slidably connected to the inside of the groove.

[0012] Furthermore, the outside of the telescopic rod two is rotatably connected to the outside of the abutment plate, and the outside of the abutment plate is provided with anti-slip components.

[0013] Furthermore, the outer side of the abutment plate abuts against the outer side of the support plate.

[0014] Furthermore, the base is connected to the pre-embedded bolts in the concrete of the foundation pit, and the outside of the support plate is connected to the side wall of the foundation pit through anchor rods, expansion plugs, etc.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, through the precise control of hydraulic cylinder 1, telescopic rod 1 and slider, the angle between the column and the diagonal brace can be precisely adjusted to ensure the stability of the support structure. When the shape of the foundation pit changes significantly, it can provide precise support and adjustment, avoid the phenomenon of tilting or instability of the support structure, and can quickly respond to changes in the construction site, adjust the height and position of the support structure in real time, reduce the complexity and workload of manual operation, enhance the application range of the support system, and can cope with different foundation pit conditions.

[0017] 2. In this utility model, the stable connection between the diagonal brace and the support plate is ensured by adjusting the hydraulic cylinder II, the telescopic rod II, and the abutment plate. This effectively prevents the support from failing or shifting due to external factors (such as soil changes or equipment vibrations) during the construction of the foundation pit. It also enhances the friction at the contact points with the support plate, preventing slippage between the support plate and the side wall of the foundation pit. Furthermore, it can evenly distribute the load of the foundation pit to each support point, avoiding excessive stress on a single support point and reducing structural instability caused by local pressure concentration. Attached Figure Description

[0018] Figure 1 This is a perspective view of a stabilizing frame for soft soil foundation pit support proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the column structure of a stabilizing frame for soft soil foundation pit support proposed in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0021] Legend:

[0022] 1. Base; 2. Crossbeam; 3. Connector; 4. Diagonal brace; 5. Universal joint; 6. Column; 7. Adjustment assembly; 701. Mounting bracket one; 702. Hydraulic cylinder one; 703. Telescopic rod one; 704. Connecting block; 705. Sliding block; 706. Slide groove; 8. Support assembly; 801. Mounting bracket two; 802. Hydraulic cylinder two; 803. Telescopic rod two; 804. Support plate; 9. Support plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 An embodiment of this utility model provides a stabilizing frame for supporting foundation pits in soft soil layers, comprising two bases 1. The bases 1 are connected to pre-embedded bolts in the concrete within the foundation pit. A crossbeam 2 is fixedly connected to the top of the base 1. A connector 3 is fixedly connected to the left side of the top of the crossbeam 2. A diagonal brace 4 is rotatably connected inside the connector 3. A universal joint 5 is rotatably connected to the right side of the crossbeam 2. An anti-slip component is provided on the outside of the universal joint 5. A column 6 is fixedly connected to the top of the crossbeam 2. A support plate 9 abuts against the outside of the universal joint 5.

[0025] Specifically, base 1 is the basic support structure of the stabilizer, usually made of high-strength steel with strong load-bearing capacity. The bottom surface of base 1 has pre-embedded bolt holes for connection with pre-embedded bolts in the concrete within the foundation pit. Base 1 is fixed to the bottom or surrounding area of ​​the foundation pit by these bolts, ensuring the stability of the stabilizer around the pit. A crossbeam 2 is fixedly connected to the top of base 1, with both ends of the crossbeam 2 fixed to base 1, providing lateral support for the entire stabilizer. The crossbeam 2 spans above base 1, distributing and transferring loads. A connector 3 is fixedly connected to the left side of the top of the crossbeam 2, and a diagonal brace 4 is rotatably connected inside the connector 3. The connector 3 allows the diagonal brace 4 to be adjusted as needed. The angle adjustment is required within different ranges to adapt to the support requirements of different foundation pit conditions. The diagonal brace 4 and the connector 3 are fixed by rotational connection. The diagonal brace 4 has good adjustability and stability, and can provide effective support between the diagonal beam and the side wall of the foundation pit. The other end of the diagonal brace 4 is connected to the right side of the crossbeam 2 through the universal joint 5. The universal joint 5 has good rotational flexibility and can withstand different angle changes of the diagonal brace to ensure structural stability. The universal joint 5 is equipped with anti-slip parts on the outside to enhance the friction between the universal joint 5 and the support plate 9, prevent slippage or fall-off during the stress process, and improve stability. The column 6 is fixed to the top of the crossbeam 2 to ensure the vertical support force of the stabilizer.

[0026] Reference Figures 1-3 An adjustment assembly 7 is provided on one side of the two columns 6. The adjustment assembly 7 includes a mounting bracket 701, which is fixedly connected to one side of the two columns 6. Hydraulic cylinders 702 are installed on both the front and rear sides of the inner wall of the mounting bracket 701. A telescopic rod 703 is installed inside the column 6. A connecting block 704 is fixedly connected to the output end of the hydraulic cylinder 702. The top end of the telescopic rod 703 is fixedly connected to the bottom end of the connecting block 704. Slider blocks 705 are rotatably connected to both the front and rear sides of the connecting block 704. A sliding groove 706 is provided on the lower side of the diagonal brace 4. The outside of the slider 705 is slidably connected to the inside of the sliding groove 706.

[0027] Specifically, an adjustment component 7 is provided on the adjacent side of the two columns 6. The adjustment component 7 is used to precisely adjust the height and stability of the columns 6. The adjustment component 7 consists of a mounting frame 701 and a hydraulic cylinder 702. The mounting frame 701 is fixedly connected to the adjacent side of the two columns 6, and the hydraulic cylinder 702 is installed on the front and rear sides of its inner wall. The output end of the hydraulic cylinder 702 is connected to the telescopic rod 703 through the connecting block 704. The top end of the telescopic rod 703 is fixedly connected to the bottom end of the connecting block 704. The front and rear sides of the connecting block 704 are rotatably connected to the slider 705. The outside of the slider 705 is slidably connected to the slide groove 706 on the lower side of the diagonal brace 4. Under the control of the hydraulic cylinder 702, the slider 705 can move smoothly in the slide groove 706, thereby adjusting the angle and position between the diagonal brace 4 and the columns 6, ensuring that the support structure can be appropriately adjusted according to the depth and shape of the foundation pit.

[0028] Reference Figure 1 and Figure 2 Support components 8 are provided on the adjacent sides of the two diagonal braces 4; support components 8 include mounting bracket 2 801, which is fixedly connected to the adjacent sides of the two diagonal braces 4. Hydraulic cylinders 2 802 are installed on both the front and rear sides of the inner wall of mounting bracket 2 801. Telescopic rods 2 803 are installed inside the diagonal braces 4. The output end of hydraulic cylinder 2 802 is rotatably connected to a stop plate 804. The outside of telescopic rod 2 803 is rotatably connected to the outside of stop plate 804. Anti-slip parts are provided on the outside of stop plate 804. The outside of stop plate 804 abuts against the outside of support plate 9. The outside of support plate 9 is connected to the side wall of the pit through anchor rods, expansion plugs, etc.

[0029] Specifically, the support assembly 8 includes a mounting bracket 801, which is fixedly connected to one side of the two diagonal braces 4. The main function of the support assembly 8 is to further enhance the stability of the diagonal braces 4 and prevent the support system from shifting or failing due to external forces or unstable factors during the foundation pit construction process. Hydraulic cylinders 802 are installed on both the front and rear sides of the inner wall of the mounting bracket 801. The output end of the hydraulic cylinder 802 is connected to the diagonal brace 4 via a stop plate 804, which contacts the outside of the support plate 9. Through the control of the hydraulic cylinders, the pressure and position of the stop plate 804 can be precisely adjusted to provide better support and stability. A telescopic rod 803 is installed inside the diagonal brace 4 and its exterior is connected to the stop plate 804. The control of the hydraulic cylinders 802 allows the telescopic rod to extend. The expansion and contraction of plate 803 and support plate 804 adjusts the magnitude of the support force and ensures that the stabilizer remains in optimal support condition during construction. Anti-slip components are installed on the exterior of support plate 804 to effectively increase friction at the contact points with support plate 9, preventing instability due to slippage. Support plate 9 is connected to diagonal brace 4 via support assembly 8, playing a crucial supporting role in the entire stabilizer. The exterior of support plate 9 is firmly connected to the sidewalls of the pit via anchor bolts, expansion plugs, etc., ensuring that the support frame is stably fixed around the pit during construction, without displacement or instability. The design of support plate 9 is customized according to the shape, size, and depth of the pit to ensure it provides uniform support force and works collaboratively with other components of the entire support system.

[0030] Working principle: First, the base 1 is connected to the pre-embedded bolts in the concrete of the foundation pit through pre-embedded bolts, so that the universal joint 5 abuts against the support plate 9. Then, the hydraulic cylinder 702 is activated to work with the telescopic rod 703 to drive the connecting block 704 to move upward, which in turn drives the slider 705 to move with it. The slider 705 moves upward in the slide groove 706, which in turn drives the diagonal brace 4 to adjust the angle as needed, so as to cope with changes in the shape and depth of the foundation pit.

[0031] Secondly, by activating hydraulic cylinder 802 in conjunction with telescopic rod 803, the support plate 804 is moved to the upper right side, thereby adjusting the position and pressure of the support plate 804, and thus adjusting the support force, so that the support plate 9 can stably support the foundation pit.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stabilizing frame for soft soil layer foundation pit support, comprising two bases (1), characterized in that: The top end of the base (1) is fixedly connected with a cross beam (2), the top end left side of the cross beam (2) is fixedly connected with a connecting piece (3), the inside of the connecting piece (3) is rotatably connected with an inclined support (4), the top end of the cross beam (2) is fixedly connected with a stand column (6), the proximal side of two stand columns (6) is provided with an adjusting assembly (7), the proximal side of two inclined supports (4) is provided with a supporting assembly (8); The adjusting assembly (7) includes a mounting frame one (701), the mounting frame one (701) is fixedly connected on the proximal side of two stand columns (6), the inner wall of the mounting frame one (701) is provided with a hydraulic cylinder one (702) on the front and back sides, the inside of the stand column (6) is provided with a telescopic rod one (703), the output end of the hydraulic cylinder one (702) is fixedly connected with a connecting block (704), the front and back sides of the connecting block (704) are rotatably connected with a sliding block (705), the lower side of the inclined support (4) is provided with a sliding groove (706).

2. The stabilizing frame for soft soil layer foundation pit support according to claim 1, characterized in that: The supporting assembly (8) includes a mounting frame two (801), the mounting frame two (801) is fixedly connected on the proximal side of two inclined supports (4), the inner wall of the mounting frame two (801) is provided with a hydraulic cylinder two (802) on the front and back sides, the inside of the inclined support (4) is provided with a telescopic rod two (803), the output end of the hydraulic cylinder two (802) is rotatably connected with a resisting plate (804).

3. The stabilizing frame for soft soil layer foundation pit support according to claim 2, characterized in that: The right side of the cross beam (2) is rotatably connected with a universal angle (5), the outside of the universal angle (5) is provided with an antiskid piece.

4. The stabilizing frame for soft soil layer foundation pit support according to claim 3, characterized in that: The outside of the universal angle (5) is abutted with a supporting plate (9).

5. The stabilizing frame for soft soil layer foundation pit support according to claim 1, characterized in that: The top end of the telescopic rod one (703) is fixedly connected with the bottom end of the connecting block (704), the outside of the sliding block (705) is slidably connected with the inside of the sliding groove (706).

6. The stabilizing frame for soft soil layer foundation pit support according to claim 2, characterized in that: The outside of the telescopic rod two (803) is rotatably connected with the outside of the resisting plate (804), the outside of the resisting plate (804) is provided with an antiskid piece.

7. The stabilizing frame for soft soil layer foundation pit support according to claim 4, characterized in that: The outside of the resisting plate (804) is abutted with the outside of the supporting plate (9).

8. The stabilizing frame for soft soil layer foundation pit support according to claim 4, characterized in that: The base (1) is connected with a concrete pre-buried bolt in a foundation pit, the outside of the supporting plate (9) is connected with the side wall of the foundation pit through an anchor rod and an expansion plug.

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