Intelligent foundation pit dewatering and pressurizing recharge system suitable for coastal tidal region

Abstract

The utility model belongs to the technical field of foundation pit dewatering, and particularly relates to an intelligent foundation pit dewatering and pressurizing recharge system suitable for a coastal tidal zone, which comprises a dewatering well, a recharge well and a water collecting tank, and further comprises an intelligent dewatering system, a pressurizing recharge system and a pressurizing recharge system, the pumped water can be placed in the water collecting tank; the intelligent recharge system is used for intelligently placing water in the water collecting tank into a recharge well according to the water level; and the pressurizing system is used for pressurizing the water recharged by the intelligent recharging system. According to the utility model, the liquid level sensor is used for monitoring data, real-time monitoring on settlement of surrounding buildings can be realized, and compared with the traditional method of processing after settlement of the surrounding buildings and structures of the foundation pit occurs, the efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit dewatering technology, specifically an intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones. Background Technology

[0002] Currently, my country's urban construction is developing rapidly, and urban problems such as dense population and traffic congestion are becoming increasingly prominent. With the continuous advancement of urbanization, the utilization of underground space is becoming increasingly mainstream, and the depth of underground structures is also constantly extending downwards.

[0003] Dewatering is a crucial step in deep foundation pit excavation. With increasing foundation pit depths and stricter dewatering requirements, sufficient dewatering wells or other equipment are essential to lower the water level and ensure the safety of open-cut foundation pits. However, current monitoring of deep foundation pit dewatering relies primarily on visual observation by construction workers. Dewatering wells are only activated when water accumulates at the bottom of the pit. The number and timing of well activation depend on subjective judgment, resulting in extremely low efficiency. Furthermore, in coastal tidal zones, the water level in the foundation pit fluctuates with the tides, making manual observation highly susceptible to delays and insufficient drainage depth, potentially leading to construction safety issues. Furthermore, if the dewatering volume of the foundation pit is too large, excessive dewatering can cause changes in the moisture content of the surrounding soil, leading to varying degrees of settlement and damage to surrounding buildings and structures. In such cases, conventional grouting and ordinary recharge methods are unsatisfactory due to site limitations, resulting in low recharge efficiency and high overall costs. Therefore, this paper proposes an intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones. Utility Model Content

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A smart foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones includes a dewatering well, a recharge well, and a collection tank, and further includes:

[0006] The intelligent precipitation system is used to intelligently extract water from precipitation wells based on water level and can place the extracted water into a collection tank.

[0007] The intelligent reinjection system is used to intelligently place water from the collection tank into the reinjection well based on the water level.

[0008] The pressurization system is used to pressurize the water recharged by the intelligent recharge system.

[0009] As a preferred embodiment of the intelligent foundation pit dewatering and pressurized recharge system applicable to coastal tidal zones described in this utility model, the intelligent dewatering system includes:

[0010] A water pumping pipe, one end of which is fixedly installed on a water collection tank, and the other end of which is located in a dewatering well;

[0011] A water pump, which is fixedly installed on the other end of the water pumping pipe.

[0012] As a preferred embodiment of the intelligent foundation pit dewatering and pressurized recharge system applicable to coastal tidal zones described in this utility model, the intelligent dewatering system further includes:

[0013] The first high water level sensor is located in the inner cavity of the top of the pumping pipe in the dewatering well;

[0014] The first low water level sensor is located inside the top cavity of the pumping pipe in the dewatering well.

[0015] As a preferred embodiment of the intelligent foundation pit dewatering and pressurized recharge system applicable to coastal tidal zones described in this utility model, the pressurization system includes:

[0016] A water inlet pipe, one end of which is fixedly installed on a water collection tank;

[0017] An electric water pump, wherein an inlet pipe is fixedly installed at the inlet end of the electric water pump;

[0018] The water outlet pipe is fixedly installed on the outlet end of the electric water pump, and one end of the water outlet pipe is located in the recharge well.

[0019] As a preferred embodiment of the intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones described in this utility model, the pressurization system further includes:

[0020] The electric motor, wherein the input shaft of the electric water pump is fixedly connected to the output shaft of the electric motor;

[0021] A frequency converter, which is electrically connected to the motor via a cable.

[0022] As a preferred embodiment of the intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones described in this utility model, the pressurization system further includes:

[0023] A pressure sensor is provided on the water outlet pipe, and the pressure sensor is electrically connected to the frequency converter via a cable.

[0024] A pressure tank is provided on the water outlet pipe.

[0025] As a preferred embodiment of the intelligent foundation pit dewatering and pressurized recharge system applicable to coastal tidal zones described in this utility model, the intelligent recharge system includes:

[0026] The second high water level sensor is located in the inner cavity of the top of the outlet pipe in the recharge well;

[0027] The second low water level sensor is located in the inner cavity of the bottom end of the outlet pipe in the recharge well.

[0028] Compared with existing technologies, it has the following advantages:

[0029] High degree of automation: It can realize automated monitoring and control of the entire precipitation process, avoiding the cumbersome nature of traditional manual operation;

[0030] Stable precipitation effect: The precipitation process can be monitored and adjusted in real time, eliminating the possibility of human misjudgment and ensuring reliable and stable precipitation effect, thereby reducing precipitation cycle and cost;

[0031] High processing efficiency: By using liquid level sensor data monitoring, the settlement of surrounding structures can be monitored in real time, which greatly improves efficiency compared to the traditional approach of waiting for settlement to occur before dealing with the surrounding structures of the foundation pit.

[0032] High reinjection rate, enabling deep reinjection: Using a variable frequency constant pressure water pump as the pressurization system for reinjection, groundwater is reinjected through this "mechanical pressurization method," ensuring that at least 80% of the extracted groundwater is reinjected. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall process of this utility model;

[0034] Figure 2 This is a schematic diagram of the pressurization system of this utility model;

[0035] Figure 3 This is a schematic diagram of the intelligent precipitation system of this utility model;

[0036] Figure 4 This is a schematic diagram of the intelligent recharge system of this utility model.

[0037] In the diagram: 1. Frequency converter; 2. Motor; 3. Pressure sensor; 4. Pressure tank; 5. Electric water pump; 6. Inlet pipe; 7. Outlet pipe; 8. Pumping pipe; 9. Dewatering well; 10. Pump; 11. First high water level sensor; 12. First low water level sensor; 13. Recharge well; 14. Second high water level sensor; 15. Second low water level sensor; 100. Water collection tank; 200. Intelligent dewatering system; 300. Intelligent recharge system; 400. Pressurization system. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0039] This utility model provides an intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones. Please refer to [link / reference]. Figures 1-4 This includes 9 dewatering wells, 13 recharge wells, and 100 water collection tanks;

[0040] It also includes: an intelligent precipitation system 200, which is used to intelligently extract water from the precipitation well 9 according to the water level, and can place the extracted water into the collection tank 100;

[0041] The intelligent precipitation system 200 includes: a pumping pipe 8, a pumping pump 10, a first high water level sensor 11, and a first low water level sensor 12;

[0042] One end of the pumping pipe 8 is fixedly installed on the water collection tank 100, and the other end of the pumping pipe 8 is located in the dewatering well 9. The pumping pump 10 is fixedly installed on the other end of the pumping pipe 8. A first high water level sensor 11 is provided in the inner cavity of the top end of the pumping pipe 8 located in the dewatering well 9, and a first low water level sensor 12 is provided in the inner cavity of the top end of the pumping pipe 8 located in the dewatering well 9. When the water level in the pumping pipe 8 rises to the first high water level sensor 11, water will be pumped by the pumping pump 10. Conversely, when the water level in the pumping pipe 8 drops to the first low water level sensor 12, pumping will stop.

[0043] It also includes: a pressurization system 400, used to pressurize the water recharged by the intelligent recharge system 300.

[0044] The pressurization system 400 includes: frequency converter 1, electric motor 2, pressure sensor 3, pressure tank 4, electric water pump 5, inlet pipe 6, and outlet pipe 7;

[0045] One end of the inlet pipe 6 is fixedly installed on the water collection tank 100. The inlet end of the electric water pump 5 is fixedly installed with the inlet pipe 6. The outlet pipe 7 is fixedly installed on the outlet end of the electric water pump 5, and one end of the outlet pipe 7 is located in the recharge well 13. The input shaft of the electric water pump 5 is fixedly connected to the output shaft of the motor 2. The frequency converter 1 is electrically connected to the motor 2 via a cable. A pressure sensor 3 is installed on the outlet pipe 7, and the pressure sensor 3 is electrically connected to the frequency converter 1 via a cable. A pressure tank 4 is installed on the outlet pipe 7. The motor 2 and the electric water pump 5 are connected in series. The electric motor 2 provides power to the electric water pump 5, driving the pump impeller to rotate and realize the transportation or lifting of water. Through the cooperation of the electric motor 2 and the electric water pump 5, the water on the collection tank 100 flows into the reinjection well 13 through the inlet pipe 6 and the outlet pipe 7. During this process, the pressure sensor 3 feeds back the pressure signal to the frequency converter 1. The frequency converter 1 adjusts the output frequency according to the received pressure signal, thereby controlling the speed of the electric motor 2, and finally regulating the water pressure and keeping it within the set range.

[0046] It also includes: an intelligent reinjection system 300, which intelligently places water from the collection tank 100 into the reinjection well 13 according to the water level;

[0047] The intelligent recharge system 300 includes: a second high water level sensor 14 and a second low water level sensor 15;

[0048] A second high water level sensor 14 is installed at the top of the outlet pipe 7 in the reinjection well 13, and a second low water level sensor 15 is installed at the bottom of the outlet pipe 7 in the reinjection well 13. When the water level in the well pipe drops to the second low water level sensor 15, reinjection will begin; conversely, when the water level in the well pipe rises to the second high water level sensor 14, reinjection will stop.

[0049] Based on the above, the benefits of this utility model are as follows:

[0050] By combining dewatering devices and drainage systems with intelligent control technology, the reliability and flexibility of foundation pit dewatering construction are greatly improved. Combining the advantages of both, the automated system saves manpower for foundation pit monitoring and improves the efficiency and safety of foundation pit dewatering. The coordinated pumping effect of dewatering equipment and drainage pipe network is stable and reliable. The overall solution takes the best of both worlds and makes up for the shortcomings of traditional dewatering methods.

[0051] Intelligent pressurized recharge technology, specifically designed for coastal tidal areas with high recharge requirements and where dynamic water environments are more prone to causing building settlement, solves the core problems of low recharge rates and slow processing speeds in traditional recharge treatments. It changes the traditional approach of analyzing settlement after it is discovered, and can also improve the recharge rate by using the mechanical pressurization effect of variable frequency constant pressure water pumps, thereby reducing project costs, improving project efficiency, and ensuring the safety of deep foundation pit operations.

[0052] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A smart foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones, comprising a dewatering well (9), a recharge well (13), and a collection tank (100), characterized in that, Also includes: The intelligent precipitation system (200) is used to intelligently extract water from the precipitation well (9) according to the water level, and can place the extracted water in the collection tank (100); The intelligent reinjection system (300) is used to intelligently place water from the collection tank (100) into the reinjection well (13) according to the water level; A pressurization system (400) is used to pressurize the water recharged by the intelligent recharge system (300).

2. The intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones according to claim 1, characterized in that, The intelligent precipitation system (200) includes: A water pumping pipe (8) is fixedly installed on a water collection tank (100) at one end, and the other end of the water pumping pipe (8) is located in a dewatering well (9); A water pump (10) is fixedly installed on the other end of a water pumping pipe (8).

3. The intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones according to claim 2, characterized in that, The intelligent precipitation system (200) also includes: The first high water level sensor (11) is located in the inner cavity of the top of the pumping pipe (8) in the dewatering well (9). The first low water level sensor (12) is located in the inner cavity of the top of the pumping pipe (8) in the dewatering well (9).

4. The intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones according to claim 1, characterized in that, The pressurization system (400) includes: Water inlet pipe (6), one end of which is fixedly installed on water collection tank (100); An electric water pump (5) is provided, with an inlet pipe (6) fixedly installed at the inlet end of the electric water pump (5). The water outlet pipe (7) is fixedly installed on the water outlet end of the electric water pump (5), and one end of the water outlet pipe (7) is located in the recharge well (13).

5. The intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones according to claim 4, characterized in that, The pressurization system (400) also includes: The input shaft of the electric water pump (5) is fixedly connected to the output shaft of the electric motor (2); A frequency converter (1) is electrically connected to a motor (2) via a cable.

6. The intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones according to claim 5, characterized in that, The pressurization system (400) also includes: Pressure sensor (3), the water outlet pipe (7) is equipped with pressure sensor (3), and the pressure sensor (3) is electrically connected to the frequency converter (1) through a cable; Pressure tank (4), the water outlet pipe (7) is equipped with pressure tank (4).

7. The intelligent foundation pit dewatering and pressurized recharge system suitable for coastal tidal zones according to claim 4, characterized in that, The intelligent recharge system (300) includes: The second high water level sensor (14) is located in the inner cavity of the top of the outlet pipe (7) in the recharge well (13). The second low water level sensor (15) is located in the inner cavity of the bottom end of the outlet pipe (7) in the recharge well (13).

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