Foundation pit multi-stage dewatering system

Abstract

The utility model relates to the technical field of foundation pit construction, and discloses a foundation pit multi-stage dewatering system which comprises a ground water storage pond, a dewatering mechanism, an energy supply mechanism and an underground water level sensor. According to the foundation pit multi-stage dewatering system, the step-by-step dewatering effect can be achieved through the arranged dewatering mechanism, the design of the multi-stage water collecting pipes is adopted, underground water can be evenly and effectively collected at different depths, the dewatering efficiency is greatly improved, the arranged energy supply mechanism can convert solar energy into electric energy, and the energy is saved. The water level in the foundation pit can be detected in real time and the water pumping strategy can be adjusted in time through the arranged underground water level sensor, safety accidents such as foundation pit slope instability and ground subsidence are effectively prevented, and the safety of the foundation pit is improved. And by means of the PLC, the working state of each submersible pump can be conveniently adjusted, and operation is simplified.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of foundation pit construction, in particular to a multi-stage foundation pit dewatering system. BACKGROUND

[0002] In the process of urbanization, the construction of high-rise buildings is increasing, which leads to the deepening of the depth of foundation pit excavation. During the process of foundation pit excavation, the effective control of underground water is one of the key factors to ensure construction safety and quality.

[0003] Traditional foundation pit dewatering methods mainly include light well point method, jet well point method, electro-osmotic well point method and the like. Although these methods can reduce the underground water level to a certain extent, they are not capable of dealing with deep foundation pits, high water pressure and complex geological conditions. With the progress of science and technology, some new dewatering systems have been gradually developed, but there are problems such as high cost and difficult maintenance.

[0004] The existing foundation pit dewatering methods have many problems in practical application, such as large equipment investment, high operation cost, complex operation and great influence on the environment. In addition, the traditional methods are often difficult to achieve uniform and effective dewatering when facing complex geological conditions, which can easily cause safety hazards such as foundation pit slope instability and ground subsidence. In order to solve the above problems, a multi-stage foundation pit dewatering system is provided. CONTENT OF THE INVENTION

[0005] In view of the deficiencies of the prior art, the application provides a multi-stage foundation pit dewatering system, which can realize efficient and economical foundation pit dewatering under complex geological conditions and ensure construction safety and engineering quality.

[0006] To achieve the above purpose, the application provides the following technical scheme: a multi-stage foundation pit dewatering system, comprising a ground water storage tank, a dewatering mechanism, an energy supply mechanism and a groundwater level sensor, the dewatering mechanism comprising a drain pipe, the output end of the drain pipe being located in the interior of the ground water storage tank, the input end of the drain pipe being communicated with a collecting pipe, the inner wall of the collecting pipe being communicated with a plurality of water collecting pipes, the input end of each water collecting pipe being provided with a submersible pump, the input end of each submersible pump being fixedly connected with a filter screen, the output end of each water collecting pipe being provided with a first check valve, and the inner wall of the collecting pipe being provided with uniformly distributed second check valves.

[0007] Through the above scheme, the step-by-step precipitation effect can be realized through the setting of the precipitation mechanism, the multi-stage water collecting pipe design can uniformly and effectively collect groundwater at different depths, greatly improving the precipitation efficiency, and the energy supply mechanism can convert solar energy into electrical energy and supply electrical elements in the device, reasonably utilizing resources, reducing energy consumption, and reducing use cost, and the underground water level sensor can detect the water level in the foundation pit in real time, adjust the pumping strategy in time, effectively prevent the occurrence of safety accidents such as foundation pit slope instability and ground subsidence, and facilitate the step-by-step precipitation effect of the precipitation mechanism.

[0008] Further, the connecting plates are uniformly distributed between the plurality of water collecting pipes, and the upper and lower ends of each connecting plate are fixedly connected to the outer surfaces of two water collecting pipes.

[0009] Through the above scheme, the connecting plates can fix the plurality of water collecting pipes together, so that the step-by-step precipitation effect can be realized more stably.

[0010] Further, the outer surface of the ground water storage tank is fixedly connected with two fixed plates, and the other end of each of the two fixed plates is fixedly connected with the outer surface of the drain pipe.

[0011] Through the above scheme, the fixed plates can realize the fixed connection effect between the drain pipe and the ground water storage tank, thereby improving the stability of the drain pipe during water delivery.

[0012] Further, the energy supply mechanism comprises a photovoltaic panel fixedly connected to the top of the ground water storage tank, a photovoltaic controller fixedly connected to the outer surface of the ground water storage tank, and the photovoltaic panel and the photovoltaic controller are electrically connected.

[0013] Through the above scheme, the photovoltaic panel can absorb solar energy and convert it into direct current, and the photovoltaic controller can adjust the current and voltage.

[0014] Further, the photovoltaic controller is provided below the battery, the battery is fixedly connected to the outer surface of the ground water storage tank, and the battery and the photovoltaic controller are electrically connected.

[0015] Through the above scheme, the battery can conveniently store the electrical energy delivered by the photovoltaic controller, and is convenient to use.

[0016] Further, the outer surface of the ground water storage tank is fixedly connected with an inverter, the battery and the inverter are electrically connected, and the plurality of submersible pumps are electrically connected with the inverter.

[0017] Through the above scheme, the inverter can reasonably deliver the electrical energy in the battery to the load elements.

[0018] Further, the underground water level sensor is installed inside the foundation pit, and the underground water level sensor is electrically connected with the inverter.

[0019] Through the above scheme, the underground water level sensor can detect the water level in the foundation pit in real time, thereby facilitating the subsequent step-by-step dewatering work.

[0020] Further, the top end of the ground water storage tank is fixedly connected with a PLC controller, and the electrical elements in the dewatering mechanism, the energy supply mechanism and the underground water level sensor are electrically connected with the PLC controller.

[0021] Through the above scheme, the PLC controller can facilitate the work of each electrical element in the device, and simplify the operation process.

[0022] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0023] The multi-stage dewatering system for foundation pit can realize step-by-step dewatering effect through the dewatering mechanism, and can uniformly and effectively collect underground water at different depths by adopting the design of multi-stage water collecting pipe, thereby greatly improving the dewatering efficiency. The energy supply mechanism can convert solar energy into electrical energy and supply it to the electrical elements in the device, thereby reasonably utilizing resources, reducing energy consumption, and reducing use cost. The underground water level sensor can detect the water level in the foundation pit in real time, adjust the pumping strategy in time, and effectively prevent the occurrence of safety accidents such as foundation pit slope instability and ground subsidence, thereby facilitating the realization of step-by-step dewatering effect with the dewatering mechanism. The PLC controller can conveniently adjust the working state of each submersible pump, thereby simplifying the operation and reducing the labor cost, and being more practical. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall rear view structure of the structure of the present application;

[0025] Figure 2 It is a schematic diagram of the overall front view structure of the structure of the present application;

[0026] Figure 3 It is a schematic diagram of the overall bottom view structure of the structure of the present application;

[0027] Figure 4 It is a schematic diagram of the first partial cross-sectional structure of the structure of the present application;

[0028] Figure 5 It is a schematic diagram of the second partial cross-sectional structure of the structure of the present application.

[0029] In the figure:

[0030] 1. Ground water storage tank; 2. Rainfall mechanism; 201. Drainage pipe; 202. Manifold; 203. Water collection pipe; 204. Submersible pump; 205. Filter screen; 206. First check valve; 207. Second check valve; 208. Connecting plate; 209. Fixing plate; 3. Power supply mechanism; 301. Photovoltaic panel; 302. Photovoltaic controller; 303. Battery; 304. Inverter; 4. Groundwater level sensor; 5. PLC controller. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a multi-stage dewatering system for foundation pits includes a ground water storage tank 1, a dewatering mechanism 2, a power supply mechanism 3, and a groundwater level sensor 4. The dewatering mechanism 2 includes a drainage pipe 201, the output end of which is located inside the ground water storage tank 1. Two fixing plates 209 are fixedly connected to the outer surface of the ground water storage tank 1. The other ends of the two fixing plates 209 are fixedly connected to the outer surface of the drainage pipe 201. The fixing plates 209 enable a fixed connection between the drainage pipe 201 and the ground water storage tank 1, thereby improving the stability of the drainage pipe 201 during water delivery. The input end of the drainage pipe 201 is connected to a manifold 202. The inner wall of the manifold 202 is connected to multiple water collection pipes 203. The multiple water collection pipes 203 are provided with evenly distributed connecting plates 208. The upper and lower ends of each connecting plate 208 are fixedly connected to the outer surfaces of two water collection pipes 203, respectively. The connecting plates 208 can fix the multiple water collection pipes 203 together, thereby achieving a more stable step-by-step dewatering effect.

[0033] Please see Figure 3 , Figure 4 and Figure 5The input end of each water collecting pipe 203 is provided with a submersible pump 204. When the submersible pump 204 is started, the water in the foundation pit can be transported into the collecting pipe 202 through the water collecting pipe 203, and then transported into the drain pipe 201 through the collecting pipe 202, and finally transported into the ground water storage tank 1 through the drain pipe 201. If multiple submersible pumps 204 are started at the same time, the foundation pit can be quickly dewatered. The input end of each submersible pump 204 is fixedly connected with a filter screen 205. The filter screen 205 can reduce the probability of impurities entering the submersible pump 204, thereby reducing the probability of clogging of the water collecting pipe 203. The output end of each water collecting pipe 203 is provided with a first check valve 206. The first check valve 206 can control the direction of water flow in the water collecting pipe 203, preventing backflow. The inner wall of the collecting pipe 202 is provided with evenly distributed second check valves 207. The second check valves 207 can control the flow direction of water flow in the collecting pipe 202, preventing backflow, thereby improving the efficiency of dewatering.

[0034] Please refer to Figure 1 , Figure 2 and Figure 3 , the power supply mechanism 3 includes a photovoltaic panel 301 fixedly connected to the top of the ground water storage tank 1. The outer surface of the ground water storage tank 1 is fixedly connected with a photovoltaic controller 302. The photovoltaic panel 301 is electrically connected with the photovoltaic controller 302. The photovoltaic panel 301 can absorb solar energy and convert it into direct current. The photovoltaic controller 302 can adjust the current and voltage. The photovoltaic controller 302 is provided below the photovoltaic panel 301. The photovoltaic controller 302 is fixedly connected to the outer surface of the ground water storage tank 1. The photovoltaic controller 302 is electrically connected with the photovoltaic panel 301. The storage battery 303 is provided below the photovoltaic controller 302. The storage battery 303 is fixedly connected to the outer surface of the ground water storage tank 1. The storage battery 303 is electrically connected with the photovoltaic controller 302. The storage battery 303 can store the electric energy transmitted by the photovoltaic controller 302, which is convenient to use. The outer surface of the ground water storage tank 1 is fixedly connected with an inverter 304. The storage battery 303 is electrically connected with the inverter 304. Multiple submersible pumps 204 are electrically connected with the inverter 304. The inverter 304 can reasonably transmit the electric energy in the storage battery 303 to the load elements, so that the device has the effect of energy saving. The device can be powered by solar energy, which reduces the cost of use and is more practical.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3The underground water level sensor 4 is installed in the interior of the foundation pit, and the underground water level sensor 4 is electrically connected with the inverter 304; the underground water level sensor 4 arranged can detect the water level condition in the interior of the foundation pit in real time, thereby facilitating subsequent step-by-step dewatering work; the corresponding submersible pump 204 can be selectively started according to the water level condition, thereby realizing the step-by-step dewatering effect; the top end of the ground water storage tank 1 is fixedly connected with the PLC controller 5; the electrical elements in the dewatering mechanism 2, the energy supply mechanism 3 and the underground water level sensor 4 are electrically connected with the PLC controller 5; the PLC controller 5 arranged can facilitate the work of each electrical element in the device, and simplifies the operation process.

[0036] The dewatering mechanism 2 arranged in the foundation pit multi-stage dewatering system can realize the step-by-step dewatering effect; the multi-stage water collecting pipe 203 is adopted, which can uniformly and effectively collect underground water at different depths, greatly improving the dewatering efficiency; the energy supply mechanism 3 arranged can convert solar energy into electrical energy and supply the electrical elements in the device, reasonably utilizes resources, reduces energy consumption, and also reduces the use cost; the underground water level sensor 4 arranged can detect the water level in the foundation pit in real time, timely adjusts the water pumping strategy, effectively prevents the occurrence of safety accidents such as foundation pit slope instability and ground subsidence, facilitates the realization of the step-by-step dewatering effect by cooperating with the dewatering mechanism 2; and the PLC controller 5 arranged can conveniently adjust the working state of each submersible pump 204, simplifies the operation, reduces the labor cost, and is more practical.

[0037] The working principle of the above embodiment is that: when in use, the underground water level sensor 4 can detect the water level in the foundation pit in real time and feed back the data to the PLC controller 5 for processing, and through the PLC controller 5, the corresponding submersible pump 204 can be started to carry out the work of dewatering the foundation pit, the water in the foundation pit is transported to the collecting pipe 202 through the corresponding collecting pipe 203, and then the water is transported to the drain pipe 201 through the collecting pipe 202, and finally the water in the foundation pit is discharged to the ground water storage tank 1 through the drain pipe 201, so that the effect of step-by-step dewatering can be achieved, and if rapid dewatering is required, multiple submersible pumps 204 can be started at the same time to work together to quickly dewater the foundation pit, which is more practical. At the same time, in order to prevent water from flowing backward, a plurality of first one-way valves 206 and second one-way valves 207 are arranged, the first one-way valve 206 can control the direction of water flow in the collecting pipe 203, and the water in the collecting pipe 202 cannot flow backward into the collecting pipe 203, which optimizes the dewatering effect, and the second one-way valve 207 can control the direction of water flow in the collecting pipe 202, so that the water flow in the collecting pipe 202 can only be transported upward and cannot be transported downward, which can further improve the efficiency of dewatering and optimize the effect of dewatering. In addition, the filter screen 205 can reduce the probability of foreign matter entering the collecting pipe 203, which is more practical. The energy supply mechanism 3 can convert solar energy into electrical energy to provide sufficient energy for each electrical element in the device, reasonably utilize natural resources, reduce energy consumption, and reduce use cost. The photovoltaic panel 301 can convert solar energy into direct current, and store the electrical energy in the storage battery 303 through the photovoltaic controller 302, and finally deliver the electrical energy to the load element in the device through the inverter 304.

[0038] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0039] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes can be made in detail without departing from the principles and spirit of the application. The scope of the application is therefore defined by the appended claims and their equivalents.

Claims

1. A multi-stage foundation pit dewatering system, comprising a ground water storage tank (1), a dewatering mechanism (2), an energy supply mechanism (3) and a groundwater level sensor (4), characterized in that: The precipitation mechanism (2) includes a drain pipe (201), the output end of the drain pipe (201) is located in the inside of the ground water storage tank (1), the input end of the drain pipe (201) is communicated with a collecting pipe (202), the inner wall of the collecting pipe (202) is communicated with a plurality of water collecting pipes (203), the input end of each water collecting pipe (203) is installed with a submersible pump (204), the input end of each submersible pump (204) is fixedly connected with a filter screen (205), the output end of each water collecting pipe (203) is installed with a first check valve (206), the inner wall of the collecting pipe (202) is installed with uniformly distributed second check valves (207).

2. The multi-stage foundation pit dewatering system of claim 1, wherein: A plurality of the water collecting pipes (203) are provided with uniformly distributed connecting plates (208), and the upper and lower ends of each connecting plate (208) are fixedly connected to the outer surfaces of two water collecting pipes (203).

3. The multi-stage foundation pit dewatering system of claim 1, wherein: The outer surface of the ground water storage tank (1) is fixedly connected with two fixed plates (209), and the other end of each fixed plate (209) is fixedly connected with the outer surface of the drain pipe (201).

4. The multi-stage dewatering system for foundation pit according to claim 1, characterized in that: The energy supply mechanism (3) includes a photovoltaic panel (301) fixedly connected to the top of the ground water storage tank (1), the outer surface of the ground water storage tank (1) is fixedly connected with a photovoltaic controller (302), and the photovoltaic panel (301) is electrically connected with the photovoltaic controller (302).

5. The multi-stage foundation pit dewatering system of claim 4, wherein: The lower portion of the photovoltaic controller (302) is provided with a storage battery (303), the storage battery (303) is fixedly connected to the outer surface of the ground water storage tank (1), and the storage battery (303) is electrically connected with the photovoltaic controller (302).

6. The multi-stage foundation pit dewatering system of claim 5, wherein: The outer surface of the ground water storage tank (1) is fixedly connected with an inverter (304), the storage battery (303) is electrically connected with the inverter (304), and a plurality of the submersible pumps (204) are electrically connected with the inverter (304).

7. The multi-stage foundation pit dewatering system of claim 6, wherein: The underground water level sensor (4) is installed in the inside of the foundation pit, and the underground water level sensor (4) is electrically connected with the inverter (304).

8. The multi-stage foundation pit dewatering system of claim 7, wherein: The top end of the ground water storage tank (1) is fixedly connected with a PLC controller (5), and the electrical elements in the precipitation mechanism (2), the energy supply mechanism (3) and the underground water level sensor (4) are electrically connected with the PLC controller (5).

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