Intelligent rainfall control system based on foundation pit waterproof curtain and water level control method

Abstract

The invention discloses an intelligent precipitation control system based on a foundation pit waterproof curtain and a water level control method, and belongs to the technical field of engineering construction.The intelligent precipitation control system comprises a cloud control system, a precipitation well, a water suction pump, a precipitation well water level meter and an observation well, the observation well water level meter and the waterproof curtain, and a foundation pit is defined by the waterproof curtain; a dewatering well is arranged in a foundation pit, a water suction pump and a dewatering well water level gauge are arranged in the dewatering well, N observation wells are arranged around an outer shaft of the foundation pit, observation water level gauges are arranged in the observation wells, the dewatering water level gauges send collected water level information in the dewatering well to a cloud control system, and the cloud control system controls the water suction pump to work. According to the intelligent precipitation control system based on the foundation pit waterproof curtain, through the technologies of automatic regulation and control, real-time monitoring, remote control, self-adaptive adjustment and the like, the precipitation efficiency, construction safety and economic benefits are remarkably improved, and manual intervention and resource consumption are reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of engineering construction, and in particular relates to an intelligent precipitation control system and a water level control method based on a foundation pit water-stopping curtain. Background Art

[0002] Groundwater changes have a huge impact on excavation projects, especially in terms of water resources. Groundwater is an important freshwater resource and is of great significance to human life and production activities. If the excavation project causes the groundwater level to drop, it may affect nearby water sources and even lead to the depletion of groundwater resources. In terms of ground subsidence, changes in groundwater levels will affect ground stability. If the groundwater level drops, it may cause ground subsidence and damage buildings and infrastructure. In terms of ecological environment, groundwater is an important factor in maintaining ecological and environmental stability. Its changes will affect the water levels of wetlands, rivers, lakes and other water bodies, and then affect the ecological environment. In terms of engineering safety, if the groundwater changes cannot be accurately predicted during the excavation process, the groundwater level may rise, causing water accumulation on the construction site, affecting the normal progress of the project. In terms of cost control, if the groundwater changes can be accurately predicted, preventive measures can be taken in advance to avoid project delays or rework caused by groundwater problems, thereby saving costs. Therefore, accurately predicting groundwater changes caused by precipitation excavation is of great significance for protecting groundwater resources, preventing ground subsidence, protecting the ecological environment, ensuring engineering safety, and saving costs.

[0003] At present, my country's precipitation technology still mainly relies on the low-end operation mode of manual operation. This mode has many significant shortcomings and deficiencies, which limit its application in complex engineering environments. First of all, artificial precipitation requires a lot of manual operation, including water level monitoring, pumping equipment adjustment and troubleshooting, which not only leads to high labor costs, but also increases labor input, affecting the economic efficiency of the project. Especially when long-term monitoring and adjustment are required, labor costs rise further, increasing the burden on the project budget.

[0004] Secondly, artificial dewatering technology often cannot meet the high requirements for dewatering speed and efficiency in large-scale foundation pit projects or tunnel construction. In these large-scale projects, water level changes are rapid and complex, and manual operation cannot provide the necessary response speed, which often leads to delays in construction and increased construction difficulties. This requires more advanced and efficient dewatering technology to meet these challenges and ensure the smooth progress of the project.

[0005] Furthermore, the effect of artificial precipitation is highly dependent on the experience and skills of construction workers, and different construction workers have different operating methods and the ability to deal with emergencies. This reliance on experience leads to unstable precipitation effects, especially under complex geological conditions. The lack of standardized operating procedures and automatic control systems may make precipitation effects difficult to predict and control. In addition, the lack of construction workers or lack of experience may also cause misoperation, thus affecting the safety and progress of the entire project.

[0006] In addition, traditional artificial precipitation systems cannot achieve real-time monitoring and feedback. Compared with intelligent precipitation systems, artificial precipitation often lacks effective data collection and analysis capabilities, and it is difficult to grasp the changes in groundwater levels and water quality in a timely manner. This lag in information feedback makes it difficult for the construction team to make quick adjustments, which may lead to problems in the construction process that are not discovered and solved in time. For example, an abnormal rise in groundwater levels may cause water accumulation in the foundation pit, thus affecting the safety and efficiency of construction.

[0007] Finally, the maintenance and management of artificial precipitation technology is difficult. Since a large number of equipment is required, such as pumps, pipes and valves, the workload of manual monitoring and maintenance is huge. Especially in large-scale projects, managers need to frequently inspect equipment, which increases the complexity and cost of maintenance. In addition, equipment failures may not be discovered in time due to the lag in manual detection, resulting in obstruction of construction progress and increased project risks.

[0008] In summary, current precipitation technology is significantly insufficient in terms of efficiency, stability and ability to cope with complex situations. It is urgently needed to upgrade technology and improve automation to meet the needs of modern engineering construction and ensure the safety, efficiency and economy of the project. Summary of the invention

[0009] In response to the problems existing in the prior art, the present invention provides an intelligent precipitation control system and water level control method based on a foundation pit water-stopping curtain, which aims to solve many problems existing in current artificial precipitation technology in terms of efficiency, stability, real-time monitoring and cost control.

[0010] The present invention is implemented as follows: an intelligent precipitation control system based on a foundation pit water-stop curtain, characterized in that it includes a cloud control system, a precipitation well, a water pump, a precipitation well water level gauge, an observation well, an observation well water level gauge, and a water-stop curtain. The water-stop curtain surrounds a foundation pit, the precipitation well is arranged in the foundation pit, the water pump and the precipitation well water level gauge are arranged in the precipitation well, N observation wells are arranged around the outer axis of the foundation pit, an observation water level gauge is arranged in the observation well, the precipitation water level gauge sends the collected water level information in the precipitation well to the cloud control system, and the cloud control system controls the operation of the water pump.

[0011] In the above technical solution, preferably, the cloud control system includes a cloud management system, a data acquisition terminal unit and an execution control unit, the data acquisition terminal unit is connected to the observation water level meter and sends the received observation well water level meter and precipitation well water level meter to the cloud control system; the execution control unit receives the control information sent by the cloud control system and controls the operation of the water pump through the control information.

[0012] In the above technical solution, preferably, the execution control unit and the data acquisition terminal unit have a wireless communication module for sending and receiving information to the cloud control system.

[0013] In the above technical solution, preferably, the data acquisition terminal unit is connected to the observation well water level meter and the precipitation well water level meter via a data signal line, and the execution control unit is connected to the water pump via a power control line.

[0014] Compared with the traditional artificial precipitation method, the intelligent precipitation control system based on the foundation pit water-stopping curtain proposed in the present invention has significant advantages and effects, including the following points:

[0015] 1. Automated control: The intelligent precipitation system monitors the groundwater level in real time through sensors and can automatically adjust precipitation equipment, significantly improving precipitation efficiency while reducing the need for human intervention and the risk of human error.

[0016] 2. Energy saving and environmental protection: The system has intelligent control functions, which can automatically start or stop pumping equipment according to demand, thereby reducing energy consumption and achieving a more energy-saving and environmentally friendly precipitation process, which is in line with the concept of sustainable development.

[0017] 3. Real-time monitoring and feedback: The system can monitor the water level and water quality in the foundation pit in real time and provide feedback information in a timely manner. This timeliness helps the construction team to respond quickly to potential problems, thereby improving the safety and efficiency of construction and reducing the risk of accidents.

[0018] 4. Remote control: Through the remote monitoring system, the engineering team can remotely manage and control the foundation pit dewatering equipment. This convenience makes the real-time supervision of the construction process more efficient and can adjust operations in time to deal with emergencies.

[0019] 5. Data analysis and optimization: The intelligent system records and analyzes a large amount of data, provides data support for the project, helps optimize the precipitation plan, and improves the construction quality. Through data analysis, the construction team can better understand the laws of groundwater changes and formulate more scientific precipitation strategies.

[0020] 6. Adaptability: The intelligent precipitation system has an adaptive adjustment function, which can make real-time adjustments according to different construction stages and environmental changes to ensure that efficient precipitation effects can be maintained under various circumstances. This flexibility enables the system to perform well under complex geological conditions.

[0021] 7. Rapid response: The entire monitoring and feedback process is fast and efficient. It only takes about 10 seconds from collecting the water level height of the precipitation well and observation well to transmitting the data to the cloud management system and then feeding back to the pumping control system. This speed greatly improves the precipitation efficiency and ensures timely response when the groundwater level changes.

[0022] 8. Reduce labor costs: Due to the realization of intelligent and unmanned 24-hour monitoring and management, the need for manual timed and fixed-point management is reduced, which significantly saves operating costs and electricity resources and improves economic benefits.

[0023] In summary, the intelligent precipitation control system based on the foundation pit water-stop curtain not only improves the precipitation efficiency and construction safety, but also reduces the operating cost through various technical means such as automation, real-time monitoring, and remote control, and has broad application prospects.

[0024] The second object of the present invention is to provide a water level control method of an intelligent precipitation control system based on a foundation pit water-stopping curtain, which is characterized by comprising the following steps:

[0025] S1. Collect water level data around the foundation pit and water level data inside the foundation pit;

[0026] S2. Transmit the collected water level data to the cloud control system;

[0027] S3. The cloud control system compares and analyzes the water level data around the pit with the water level data within the foundation pit;

[0028] S4. Based on the analysis results, the cloud control system remotely controls the pumping equipment in the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the positional relationship between the precipitation well and the observation well in the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] In order to solve the many problems existing in the current artificial precipitation technology in terms of efficiency, stability, real-time monitoring and cost control, the present invention provides an intelligent precipitation control system based on a foundation pit water-stopping curtain and a water level control method. The intelligent precipitation control system based on the foundation pit water-stopping curtain significantly improves the precipitation efficiency, construction safety and economic benefits through technologies such as automatic regulation, real-time monitoring, remote control and adaptive adjustment, and reduces manual intervention and resource consumption. In order to further illustrate the structure of the present invention, the detailed description is as follows in conjunction with the accompanying drawings:

[0033] See also Figure 1 and Figure 2 An intelligent precipitation control system based on a foundation pit water-stopping curtain includes a cloud control system, a precipitation well 2, a water pump 3, a precipitation well water level gauge 4, an observation well 5, an observation well water level gauge 6, and a water-stopping curtain 7.

[0034] The water-stop curtain surrounds the foundation pit.

[0035] A dewatering well is set in the foundation pit, and a water pump and a water level gauge are set in the dewatering well. N observation wells are set around the outer axis of the foundation pit, and an observation water level gauge is set in the observation well. The dewatering well and the observation well are separated by a water-stop curtain. Specifically, two dewatering wells are placed in the foundation pit, and eight observation wells are buried in sequence outside the water-stop curtain.

[0036] The precipitation water level meter sends the collected water level information in the precipitation well to the cloud control system, and the cloud control system controls the operation of the water pump. The cloud control system includes a cloud management system 1, a data acquisition terminal unit and an execution control unit. The data acquisition terminal unit is connected to the observation water level meter and sends the received observation well water level meter and precipitation well water level meter to the cloud control system; the execution control unit receives the control information sent by the cloud control system and controls the operation of the water pump through the control information. The execution control unit and the data acquisition terminal unit have a wireless communication module for sending and receiving information to the cloud control system. The data acquisition terminal unit is connected to the observation well water level meter and the precipitation well water level meter through a data signal line, and the execution control unit is connected to the water pump through a power control line. In this embodiment, the data acquisition terminal unit corresponds to the water level meter one by one. The water pump is connected to the drainage pipe.

[0037] In this embodiment, specifically, the cloud management system is connected to the data acquisition terminal unit and the execution control unit via a 4G signal. The data acquisition terminal unit is a remote terminal unit (RTU), which can receive the signal of the water level meter and transmit the data to the cloud control system via the 4G network. It can be selected from but not limited to Schneider Electric SCADAPack 470 / 474RTU, which supports analog signal input (such as water level meter signal), remote monitoring and control, and has a 4G / LTE communication module. It supports the Modbus communication protocol, has a low-power design, and is suitable for remote sites. The execution control unit can be selected from but not limited to Siemens RTU3030C, supports receiving control instructions transmitted by 4G signals, and controls the operation of the water pump through relays. It is suitable for remote water pump control, supports data preservation after power failure, and is seamlessly integrated with SCADA or cloud platforms, with strong durability.

[0038] Embodiment 2

[0039] A water level control method of an intelligent precipitation control system based on a foundation pit water-stopping curtain, characterized in that it comprises the following steps:

[0040] S1. Collect water level data around the foundation pit and water level data inside the foundation pit;

[0041] S2. Transmit the collected water level data to the cloud control system;

[0042] S3. The cloud control system compares and analyzes the water level data around the pit with the water level data within the foundation pit;

[0043] S4. Based on the analysis results, the cloud control system remotely controls the pumping equipment in the foundation pit.

[0044] Specifically, the intelligent precipitation control system of the foundation pit water-stop curtain in this embodiment is a cloud management system control system. In the cloud management system, a mobile phone app or a computer is used to log in to the system webpage, and (s1, s2) is manually set as the interval height range of water pumping. The water level of the observation well and the water level of the pumping well are monitored by the data acquisition terminal unit. The data acquisition terminal unit collects the water level data s of the observation well and uploads it to the cloud management system through a 4G signal. The cloud management system will determine whether to control water pumping through an internal program. If the water level of the observation well is higher than s2, the cloud management system will determine to pump water after receiving this signal and send a 4G signal for pumping water to the execution control unit. The execution control unit starts to control after receiving the signal. The pump is controlled to pump water, and the water levels in the precipitation well and the observation well gradually decrease. During this period, the data acquisition terminal unit will continuously upload the collected observation well water level data s to the cloud management system. When the water level in the observation well is lower than s1, the cloud management system receives the signal and determines to stop pumping. After receiving the termination signal, the execution control unit controls the pump to stop pumping. At this time, the water level of the precipitation well is slightly lower than s1, and a pumping control cycle is completed. If the groundwater level continues to be higher than the water level of the precipitation well, the water level in the precipitation well will slowly rise due to seepage. During the rising process, when the water level in the observation well is lower than s2, the cloud management system will have no control behavior. When the water level in the observation well rises to s2 again, the next round of control cycle begins.

[0045] The data acquisition terminal unit is composed of multiple water level meters. The precipitation well water level meters are arranged in the precipitation wells of the foundation pit, and the observation well water level meters are placed in the observation wells around the foundation pit. The water level meters are connected to the water level monitoring system through data signal lines.

[0046] The precipitation well pumping system consists of a precipitation well pump and a precipitation well water level gauge. The precipitation well pump is connected to the execution control unit through a power control line, and the precipitation well pump is connected to the data acquisition terminal unit through a data signal line.

[0047] The beneficial effects of the present invention are as follows: by real-time monitoring of the water level in the foundation pit, timely feedback is provided, which helps to quickly respond to potential problems and improve the safety and efficiency of construction; the entire process from collecting the water level height of the precipitation well and the observation well, to transmitting it to the cloud management system, and then feeding back to the execution control unit to control the start and stop of pumping, only takes about 10 seconds, which greatly improves the precipitation efficiency; saves operating costs and electricity resources, realizes intelligent unmanned 24-hour monitoring and management, and does not require manual timed and fixed-point control; it can be adaptively adjusted according to different construction stages and environmental changes to ensure that efficient precipitation effects can be maintained under various circumstances.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent precipitation control system based on a foundation pit water-stopping curtain, characterized in that: It includes a cloud control system, a precipitation well, a water pump, a precipitation well water level gauge, an observation well, an observation well water level gauge, and a water-stop curtain. The water-stop curtain encloses a foundation pit. The precipitation well is arranged in the foundation pit. The water pump and the precipitation well water level gauge are arranged in the precipitation well. N observation wells are arranged around the outer axis of the foundation pit. The observation well is arranged in the observation well. The precipitation water level gauge sends the collected water level information in the precipitation well to the cloud control system. The cloud control system controls the operation of the water pump.

2. The intelligent precipitation control system based on the foundation pit water-stopping curtain according to claim 1 is characterized in that: The cloud control system includes a cloud management system, a data acquisition terminal unit and an execution control unit. The data acquisition terminal unit is connected to the observation water level meter and sends the received observation well water level meter and precipitation well water level meter to the cloud control system; the execution control unit receives the control information sent by the cloud control system and controls the operation of the water pump through the control information.

3. The intelligent precipitation control system based on the foundation pit water-stopping curtain according to claim 2 is characterized in that: The execution control unit and the data acquisition terminal unit have wireless communication modules for sending and receiving information to the cloud control system.

4. The intelligent precipitation control system based on the foundation pit water-stopping curtain according to claim 3 is characterized in that: The data acquisition terminal unit is connected to the observation well water level meter and the precipitation well water level meter via a data signal line, and the execution control unit is connected to the water pump via a power supply control line.

5. A water level control method of an intelligent precipitation control system based on a foundation pit water-stopping curtain, characterized in that: The following steps are involved: S1. Collect water level data around the foundation pit and water level data inside the foundation pit; S2. Transmit the collected water level data to the cloud control system; S3. The cloud control system compares and analyzes the water level data around the pit with the water level data within the foundation pit; S4. Based on the analysis results, the cloud control system remotely controls the pumping equipment in the foundation pit.

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