A silt geology steel sheet pile support device

Abstract

The utility model discloses a kind of silt geology steel sheet pile supporting devices, it is mainly related to steel sheet pile supporting field. Including anchoring setting in the connecting seat of ground, the adjusting unit being connected with connecting seat, air compressor, control system;The adjusting unit includes the connecting groove being connected with connecting seat, and the monitoring component being connected with control system signal;Supporting groove is cooperatively arranged in the connecting groove, adjusting band is arranged between the connecting groove and supporting groove, and the adjusting band is hinged with connecting groove;Air compressor is connected with adjusting band by pipeline, and the control system controls air compressor to adjust internal pressure of adjusting band according to monitoring data.The utility model has the beneficial effect that it is used to support the bottom of silty sand steel sheet pile, and the bottom pressure of steel sheet pile is dynamically adjusted and controlled by adjusting band, and the bottom foot of steel sheet pile is directly acted on by adjusting internal pressure of adjusting band to control the support of connecting groove to steel sheet pile.

Description

Technical Field

[0001] This utility model relates to the field of sheet pile support, specifically a sheet pile support device for silty sand geology. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Due to its high water content, high compressibility, and high permeability, silty sand geology presents challenges compared to conventional soil conditions. Concrete structures formed in silty sand geology exhibit poor forming stability, difficulty in ensuring structural integrity, and insufficient long-term durability. These problems not only affect the service life of projects but can also lead to safety hazards. Silty sand combines the cohesiveness of silt with the permeability of sand, making it prone to quicksand and liquefaction under vibration or seepage. This results in a sharp increase in lateral pressure and a rapid decrease in soil strength. Therefore, the instability of sheet pile supports in silty sand geology needs to be addressed.

[0004] For sheet pile support in silty sand soil, existing methods primarily focus on providing support to the top of the sheet piles to prevent excessive soil pressure behind them from causing the piles to topple after the soil in front of the piles is excavated. Traditional sheet pile support mainly uses steel pipes and sheets to brace or corner the sheet piles, often neglecting the support at the bottom. Due to the low bearing capacity of silty sand foundations, once the top of the sheet piles is supported, the stress at the bottom can easily shift into the foundation pit, leading to heaving at the bottom of the sheet piles. Furthermore, existing sheet pile support methods are inadequate for handling the variable stress conditions in silty sand soil. Utility Model Content

[0005] The purpose of this utility model is to provide a sheet pile support device for silty sand geology. It is used to support the bottom of sheet piles in silty sand geology. The pressure at the bottom of the sheet pile is dynamically adjusted and controlled by the adjusting belt. It directly acts on the bottom foot of the sheet pile. By adjusting the internal pressure of the adjusting belt, the support of the connecting groove on the sheet pile is controlled, thereby avoiding the situation where the bottom of the sheet pile is not well supported during the service of the sheet pile in silty sand geology.

[0006] To achieve the above objectives, this utility model employs the following technical solution: A sheet pile support device for silty sand geological conditions includes a connecting seat anchored to the ground, an adjusting unit connected to the connecting seat, an air compressor, and a control system. The adjusting unit includes a connecting groove connected to the connecting seat and a monitoring component connected to the control system. A support groove is fitted inside the connecting groove, and an adjusting belt is provided between the connecting groove and the support groove. The adjusting belt is hinged to the connecting groove. The air compressor is connected to the adjusting belt through a pipeline, and the control system controls the air compressor to adjust the internal pressure of the adjusting belt based on the monitoring data.

[0007] The contact surface between the support groove and the sheet pile is adapted to the shape of the sheet pile.

[0008] The connecting seat is right-angled and has reinforcing ribs.

[0009] The inner material of the adjustment belt is synthetic rubber, and the outer material is polyurethane coating. The adjustment belt has connectors at both ends, and the cross-sectional shape of the adjustment belt is elliptical or circular.

[0010] An electrically controlled pressure regulating unit is provided between the air compressor and the regulating belt, including an electromagnetic intake valve, an electric exhaust valve, a pressure relief valve, and a flow meter.

[0011] The monitoring components include a pressure sensor and a displacement sensor.

[0012] The connecting seat is anchored to the ground by anchor bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Used for supporting the bottom of sheet piles in silty sand, the adjustable belt dynamically adjusts and controls the pressure at the bottom of the sheet pile, directly acting on the bottom foot of the sheet pile. By adjusting the internal pressure of the adjustable belt, the support of the connecting groove on the sheet pile is controlled, thus avoiding the situation where the bottom of the sheet pile is not well supported during the service of the sheet pile in silty sand geology. Attached Figure Description

[0014] Appendix Figure 1 This is a view of the two connecting seats and the adjustment unit of this utility model.

[0015] Appendix Figure 2 This is an internal view of the support groove in this utility model.

[0016] Appendix Figure 3 This is a side view of the support groove in this utility model.

[0017] Appendix Figure 4 This is a cross-sectional view of the support groove in this utility model.

[0018] Appendix Figure 5 This is an overall view of the foundation pit support of this utility model.

[0019] The labels shown in the attached diagram: 1. Connecting seat; 2. Connecting groove; 3. Support groove; 4. Adjusting belt; 5. Reinforcing rib. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0021] This utility model describes a steel sheet pile support device for silty sand geological conditions, as shown in the attached drawings of the specification. Figures 1-5 As shown, it includes a connecting seat 1 anchored to the ground, an adjusting unit connected to the connecting seat 1, an air compressor, and a control system; In this application, the foundation pit is set at the bottom of the foundation pit during use. Since most foundation pits are quadrilateral, the foundation pit needs four connecting seats 1 to be placed at the four corners of the foundation pit. Similarly, four adjustment units are also needed, and the adjustment units are connected to the connecting seats 1.

[0022] For the connecting seat 1, as the fixed base and main load-bearing structure of this device, it needs to be firmly connected to the ground. The connecting seat 1 is anchored to the ground by anchor rods. The number of anchor rods can be adjusted according to the requirements of the construction environment. For some environments with poor geological conditions, grouting can be used for anchoring. The connecting seat 1 is right-angled and is equipped with reinforcing ribs 5. As the main load-bearing component, the connecting seat 1 is made into a stable triangular structure by the reinforcing ribs 5, which can better bear the load.

[0023] The adjustment unit includes a connecting groove 2 connected to the connecting seat 1 and a monitoring component connected to the control system signal. A support groove 3 is fitted inside the connecting groove 2, and the connecting groove 2 and the support groove 3 are in a sleeve relationship with a sliding fit. An adjustment band 4 is provided between the connecting groove 2 and the support groove 3. The inner material of the adjustment band 4 is synthetic rubber, which can be high-strength, high-airtightness neoprene rubber or hydrogenated nitrile rubber, and the outer material is coated with polyurethane. Connectors are provided at both ends of the adjustment band 4. The connectors of the adjustment band 4 are hinged to both ends of the connecting groove 2. Because the position of the adjustment band 4 changes after air pressure adjustment, the adjustment band 4 is hinged to both ends of the connecting groove 2. Since the adjustment band 4 is located inside the connecting groove 2, its cross-section is elliptical to better adapt to the shape of the connecting groove 2 and thus better transmit the gas pressure inside the adjustment band 4 to the connecting groove 2. Simultaneously, the contact surface between the support groove 3 and the sheet pile is adapted to the shape of the sheet pile, thereby better supporting the sheet pile.

[0024] The air compressor is connected to the regulating belt 4 via a pipeline. The monitoring component controls the air compressor to adjust the internal pressure of the regulating belt 4 based on the monitoring data. The monitoring component includes a pressure sensor and a displacement sensor. The pressure sensor is installed inside the regulating belt 4 to monitor the internal pressure value of the regulating belt 4 in real time. The displacement sensor can be installed on the sheet pile or the connecting seat 1 to monitor the horizontal displacement of the pile and the settlement / lifting of the connecting seat 1.

[0025] To regulate the internal pressure of the regulating belt 4, an electrically controlled pressure regulating unit is installed between the air compressor and the regulating belt 4, including an electromagnetic inlet valve, an electric exhaust valve, a pressure relief valve, and a flow meter. The electromagnetic inlet valve and the electric exhaust valve are used to control the gas pressure inside the regulating belt 4, the pressure relief valve serves as a safety guarantee for emergency pressure relief, and the flow meter is used to monitor the inflow / outflow of gas medium inside the regulating belt 4 to help determine the working status of the regulating belt 4.

[0026] To enable the device to autonomously control and regulate the internal pressure of belt 4, a control system is also provided. This system includes a central controller that collects sensor data and runs a built-in PID control algorithm. Its program can be set with multiple pressure-displacement relationship curves to adapt to different excavation stages and geological profiles. Warning and action values ​​are input into the controller, and an initial target pressure P0 is set. If the real-time displacement is greater than the action value, the control system activates a pressurization mode, opening the intake solenoid valve until the displacement returns to below the warning value. If the real-time displacement is less than the warning value and the real-time pressure is greater than the pressure tolerance, the control system activates a pressure stabilization or depressurization mode, briefly opening the pressure relief valve to slowly release some pressure to the target range.

[0027] In summary, this device is used to support the bottom of sheet piles in silty sand. The pressure at the bottom of the sheet pile is dynamically adjusted and controlled by the adjusting belt 4. It directly acts on the bottom foot of the sheet pile and controls the support of the connecting groove 2 on the sheet pile by adjusting the internal pressure of the adjusting belt 4. This avoids the situation where the bottom of the sheet pile is not well supported during the service of the sheet pile in silty sand geology.

Claims

1. A sheet pile support device for silty sand geological conditions, characterized in that: Includes a connecting seat (1) anchored to the ground, an adjustment unit connected to the connecting seat (1), an air compressor, and a control system; The adjustment unit includes a connection slot (2) connected to the connection seat (1) and a monitoring component connected to the control system signal; The connecting groove (2) is fitted with a support groove (3), and an adjustment belt (4) is provided between the connecting groove (2) and the support groove (3). The adjustment belt (4) is hinged to the connecting groove (2). The air compressor is connected to the adjustment belt (4) through a pipeline. The control system controls the air compressor to adjust the internal pressure of the adjustment belt (4) according to the monitoring data.

2. The sheet pile support device for silty sand geological conditions according to claim 1, characterized in that: The contact surface between the support groove (3) and the sheet pile is adapted to the shape of the sheet pile.

3. The sheet pile support device for silty sand geological conditions according to claim 1, characterized in that: The connecting seat (1) is right-angled and has reinforcing ribs (5).

4. The sheet pile support device for silty sand geological conditions according to claim 1, characterized in that: The inner material of the adjustment belt (4) is synthetic rubber, and the outer material is polyurethane coating. The two ends of the adjustment belt (4) are provided with connectors, and the cross-sectional shape of the adjustment belt (4) is elliptical or circular.

5. The sheet pile support device for silty sand geological conditions according to claim 4, characterized in that: An electrically controlled pressure regulating unit is provided between the air compressor and the regulating belt (4), including an electromagnetic intake valve, an electric exhaust valve, a pressure relief valve and a flow meter.

6. The sheet pile support device for silty sand geological conditions according to claim 1, characterized in that: The monitoring components include a pressure sensor and a displacement sensor.

7. The sheet pile support device for silty sand geological conditions according to claim 3, characterized in that: The connecting seat (1) is anchored to the ground by anchor rods.

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