High-water-level basement structure cracking control system and method

Abstract

The invention relates to the field of constructional engineering, in particular to a high-water-level basement structure cracking control system and method.The high-water-level basement structure cracking control system comprises a monitoring system, a data processing and analyzing system and a control system. Data such as strain, displacement, humidity and temperature of the basement structure are obtained in real time through the monitoring system, deep analysis is conducted on the data in combination with the data processing and analyzing system, and potential crack risks can be found in time. The waterproof and drainage control unit, the crack repairing control unit and the environment adjusting control unit in the control system can work cooperatively, and effective prevention of basement structure cracks is achieved. The safety and durability of the basement structure are improved, the maintenance cost is reduced, and the basement structure has wide application prospects.

Description

Technical Field

[0001] The present invention relates to the field of construction engineering, and particularly to a high-water-level basement structure cracking control system and method. Background Art

[0002] In construction engineering, when the basement structure is in a high-water-level environment, it will be affected by various factors and crack problems will occur. On the one hand, the water pressure generated by the high water level will exert large lateral pressure and buoyancy on the structural members such as the basement wall and floor slab, causing the structure to deform; on the other hand, the seepage of groundwater will reduce the durability of concrete, and at the same time, due to factors such as the shrinkage, temperature change, and uneven settlement of the concrete itself, the cracking risk of the structure will be further aggravated. Traditional basement structure design and construction methods often have difficulty effectively coping with the complex effects brought by the high water level, and it is easy to cause cracks in the basement, which not only affects its service function, but also reduces the safety and durability of the structure, thereby shortening the service life of the building. Therefore, a method and system for systematically controlling the cracking of high-water-level basement structures are needed. Summary of the Invention

[0003] In view of the above deficiencies in the prior art, the present invention provides a high-water-level basement structure cracking control system and method, which has a reasonable structural design and is convenient for popularization.

[0004] A high-water-level basement structure cracking control system includes:

[0005] A monitoring system, which includes strain sensors, displacement sensors, humidity sensors, and temperature sensors, distributed at key parts of the basement structure, for monitoring the strain, displacement, humidity, and temperature of the structure, and transmitting the monitoring data to a data collector;

[0006] A data processing and analysis system, which is used to receive and store the data of the data collector, analyze the data according to preset algorithms and mechanical models, and issue an alarm when the monitoring data exceeds the safety threshold;

[0007] A control system includes:

[0008] A waterproofing and drainage control unit, which is connected to the waterproof layer and drainage system of the basement, and automatically adjusts the performance of the waterproof layer and controls drainage according to the groundwater level and the structural state;

[0009] A crack repair control unit, which is equipped with an automatic crack detection and repair device and repairs according to the crack situation;

[0010] An environment regulation control unit, which is connected to the air conditioning system, ventilation equipment, and dehumidification equipment of the basement, and regulates the temperature and humidity of the basement.

[0011] Preferably, the waterproof layer is made of intelligent control material, and its permeability can be automatically adjusted according to the groundwater level and structural status.

[0012] Preferably, the drainage system includes an automatic pumping device and a water level monitoring device, which can automatically adjust the drainage rate and time according to the water level.

[0013] Preferably, the crack detection device can determine the position, length, width and depth of cracks, and adopt different repair methods according to the crack conditions.

[0014] A method for controlling the cracking of a high water level basement structure includes the following steps:

[0015] Pre-construction preparation work, including geological exploration and optimized design of the basement structure;

[0016] Control methods during construction, including concrete construction control and waterproof construction control;

[0017] Maintenance methods during the operation stage, including continuous monitoring and treatment of cracks.

[0018] Preferably, the concrete construction control includes controlling the concrete mix ratio, layered pouring, vibration and curing.

[0019] Preferably, the waterproof construction control includes base treatment, waterproof layer construction and setting water stop measures at construction joints.

[0020] Preferably, the maintenance method during the operation stage includes corresponding treatment of cracks of different types and grades, and continuous monitoring of the repair effect.

[0021] The beneficial effects of the present invention are as follows:

[0022] The present invention can obtain data such as strain, displacement, humidity and temperature of the basement structure in real time through the monitoring system, and deeply analyze the data in combination with the data processing and analysis system, so as to timely discover potential crack risks. The waterproof and drainage control unit, crack repair control unit and environmental regulation control unit in the control system can work together to effectively prevent cracks in the basement structure. The present invention not only improves the safety and durability of the basement structure, but also reduces the maintenance cost, and has a wide application prospect. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0024] A high water level basement structure cracking control system, comprising:

[0025] Monitoring system:

[0026] Including a variety of sensors, distributed at different key positions of the basement structure. Among them, strain sensors are arranged on the surfaces of structural members such as the walls, floors, and roofs of the basement to monitor the strain conditions of the structural members under different working conditions; displacement sensors are installed at positions such as the corners and structural joints of the basement to measure the displacement changes of the structure in real time; humidity sensors are set inside the basement and in the surrounding soil of the structure to master the environmental humidity and the humidity conditions inside the structure; temperature sensors are arranged inside the concrete structure and in the surrounding environment of the basement to monitor the temperature changes.

[0027] The above sensors are all connected to a data collector, and the data collector transmits the collected data to a data processing center by wired or wireless means.

[0028] Data processing and analysis system:

[0029] Receives the data from the data collector, stores and preprocesses it. Using preset algorithms and mechanical models, according to data such as strain, displacement, humidity, and temperature, calculates the stress state and deformation trend of the structure. For example, according to the strain data and the elastic modulus of the structure, the stress borne by the structure can be calculated; combining the temperature and humidity data, considering the thermal expansion and contraction and wet expansion and contraction effects of concrete, predicts the possible deformation of the structure.

[0030] Sets safety thresholds with different parameters, and when the monitoring data exceeds the corresponding threshold, the system issues an alarm signal.

[0031] Control system:

[0032] Waterproof and drainage control unit:

[0033] Connects the waterproof layer and the drainage system of the basement. The waterproof layer uses intelligent control materials, and its permeability can be automatically adjusted according to the monitored groundwater level and structural state. When it is detected that the groundwater level rises, the waterproof layer can automatically enhance its waterproof performance to prevent more water from seeping into the basement.

[0034] The drainage system includes an automatic pumping device and a water level monitoring device. When the water level exceeds the set drainage water level, the automatic pumping device starts to drain the accumulated water in the basement. At the same time, the drainage system can also automatically adjust the drainage rate and drainage time according to the change of the groundwater level to ensure that the groundwater level is within a safe range.

[0035] Crack repair control unit:

[0036] Equipped with an automatic crack detection and repair device. When the data processing and analysis system sends a signal indicating the occurrence of a crack, the crack detection device will conduct a comprehensive scan of the basement structure to determine the location, length, width, and depth of the crack.

[0037] According to the specific situation of the crack, the corresponding repair procedure will be initiated. For example, for minor cracks, an automatic injection of sealant can be used, while for larger cracks, an automatic filling of repair materials and reinforcement materials can be employed for repair.

[0038] Environmental conditioning control unit:

[0039] Connected to the air conditioning system, ventilation equipment, and dehumidification equipment in the basement. According to the monitored temperature and humidity data, it automatically adjusts the temperature and humidity inside the basement to keep them within the set appropriate range, reducing structural deformation and cracking caused by environmental factors.

[0040] The method for controlling the cracking of the high water table basement structure is as follows:

[0041] Pre-construction preparation work:

[0042] Conduct a detailed geological survey, and use means such as ground penetrating radar and drilling to accurately determine information such as the groundwater level, soil layer distribution, and geological structure.

[0043] Based on the results of the geological survey, optimize the design of the basement structure, including reasonably determining the structural form, such as using raft foundations, box foundations, etc., to improve the integrity and anti-floating ability of the structure; setting structural joints such as deformation joints and post-cast strips, and determining their positions and spacing according to calculations; designing the thickness and materials of the waterproof layer, and selecting waterproof membranes, waterproof coatings, and sealing materials with good waterproof performance and deformation adaptability.

[0044] Control methods during construction:

[0045] Concrete construction control:

[0046] Strictly control the concrete mix ratio, determine the optimal proportions of cement, aggregates, admixtures, etc. through tests, and reduce the heat of hydration of the concrete. For example, add appropriate amounts of mineral admixtures such as fly ash and slag, as well as admixtures such as retarders and water reducers.

[0047] Adopt the method of layered pouring and vibration for concrete pouring to ensure the compactness of the concrete. During the concrete pouring process, continuously monitor the temperature of the concrete entering the formwork to avoid temperature cracks caused by excessive temperature difference between the inside and outside.

[0048] Conduct moisture and heat preservation curing for the concrete. The curing time shall not be less than the specified number of days, and adjust the curing measures according to the environmental temperature and humidity to ensure the normal growth of the concrete strength and reduce shrinkage deformation.

[0049] Waterproof construction control:

[0050] Treat the base layer to ensure it is flat, dry, and free of debris. Apply a base layer treatment agent to enhance the adhesion between the waterproof layer and the base layer.

[0051] During the construction of the waterproof layer, strictly operate in accordance with the construction specifications. Ensure that there are no bubbles or wrinkles in the laying of the waterproof coiled material, and use reliable connection methods such as hot welding or cold adhesion at the lap joints. The waterproof coating should be applied evenly to ensure the continuity and integrity of the waterproof layer.

[0052] At locations such as construction joints and deformation joints, set waterstop measures such as waterstop steel plates and waterstops. The waterstop steel plates or waterstops should be firmly fixed and accurately positioned to prevent groundwater from seeping along the construction joints.

[0053] Maintenance methods during the operation stage:

[0054] Continuously operate the monitoring system to conduct real-time monitoring of the basement structure, and regularly analyze and evaluate the monitoring data.

[0055] For the cracks that appear, handle them according to different grades and types. For surface cracks, a surface sealer can be applied; for through cracks, the repair grout can be injected into the cracks by the pressure grouting method to restore the integrity of the structure; at the same time, continuously monitor the repaired cracks to ensure the repair effect.

[0056] The above are only the preferred embodiments of this invention patent and are not intended to limit this invention patent. Any modifications, equivalent replacements, and improvements made within the spirit and principles of this invention patent shall be included within the protection scope of this invention patent.

Claims

1. A high water level basement structure crack control system, characterized in that: include: A monitoring system, which includes strain sensors, displacement sensors, humidity sensors and temperature sensors, is distributed in key parts of the basement structure to monitor the strain, displacement, humidity and temperature of the structure and transmit the monitoring data to the data collector; Data processing and analysis system, used to receive and store data from data collectors, analyze data according to preset algorithms and mechanical models, and issue an alarm when the monitoring data exceeds the safety threshold; Control system, including: The waterproof and drainage control unit connects the waterproof layer and drainage system of the basement, automatically adjusts the performance of the waterproof layer and controls drainage according to the groundwater level and structural status; Crack repair control unit, equipped with automatic crack detection and repair device, repairs according to crack conditions; The environmental conditioning control unit is connected to the basement's air conditioning system, ventilation equipment and dehumidification equipment to adjust the basement's temperature and humidity.

2. A high water level basement structure crack control system according to claim 1, characterized in that: The waterproof layer adopts intelligent control materials, and its permeability can be automatically adjusted according to the groundwater level and structural status.

3. A high water level basement structure crack control system according to claim 1, characterized in that: The drainage system comprises an automatic pumping device and a water level monitoring device, which can automatically adjust the drainage rate and time according to the water level.

4. A high water level basement structure crack control system according to claim 1, characterized in that: The crack detection device can determine the position, length, width and depth of the crack, and adopt different repair methods according to the crack conditions.

5. A method for controlling cracking of a high water level basement structure, characterized in that: The following steps are involved: Preparatory work before construction, including geological survey and optimal design of basement structure; Control methods during construction, including concrete construction control and waterproofing construction control; Maintenance methods during the operational phase include continuous monitoring and treatment of cracks.

6. A method for controlling cracking of a high water level basement structure according to claim 5, characterized in that: The concrete construction control includes controlling the concrete mix ratio, layered pouring, vibration and curing.

7. A method for controlling cracking of a high water level basement structure according to claim 5, characterized in that: The waterproof construction control includes base treatment, waterproof layer construction and setting water-stopping measures at construction joints.

8. A method for controlling cracking of a high water level basement structure according to claim 5, characterized in that: The maintenance method during the operation phase includes corresponding treatment of cracks of different types and grades and continuous monitoring of the repair effect.