Cold region power transmission and transformation concrete foundation curing device and curing method

Abstract

The invention discloses a cold region power transmission and transformation concrete foundation curing device which is composed of a frame fixing system, a steam system and an electric power system, and the frame fixing system is composed of a concrete bottom plate, concrete stand columns and heat insulation side plates; the electric power system is composed of an electric activation connecting piece, an electric wire, an intelligent control switch and a power box. The steam system is composed of a concrete top plate, a constant-temperature water storage cabin, a steam nozzle, a temperature sensing switch and a timing switch. The maintenance device is of an assembly type structure and can cope with cold region foundations of various complex shapes and sizes, the assembly type structure units adopt the prefabrication construction technology, the component forms are unified, the structure is relatively simple, the production period can be effectively shortened, the production cost is reduced, and the turnover rate of facilities is increased. According to the invention, the maintenance of the power transmission and transformation foundation concrete is not interfered by external factors, and especially under the condition that the environment temperature in winter is relatively low, the concrete strength can be ensured to be rapidly increased in the early maintenance period.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and relates to a concrete curing device, and in particular to a cold region power transmission and transformation concrete foundation curing device and a curing method. Background Art

[0002] In cold regions, concrete curing is a key step to ensure that it reaches the designed strength and durability. Low temperature environment will significantly affect the hydration reaction rate of cement and the hardening process of concrete. If improperly cured, concrete may crack, lack strength or reduce durability, which will affect the safety and service life of the entire structure.

[0003] At the same time, in cold regions, traditional concrete curing methods face many challenges. Since low temperature environments can significantly slow down the hydration reaction of cement, resulting in slow development of concrete strength, cracks and structural damage may even occur due to freezing, which not only prolongs the construction period, but also increases maintenance costs and difficulties. In addition, traditional curing methods such as covering with insulation materials or using heating equipment often make it difficult to accurately control the temperature, which can easily cause local overheating or uneven insulation, affecting the uniformity and durability of concrete. Therefore, in view of the particularity of concrete in cold regions, a new type of curing method and curing device is needed, which should be able to provide a stable and uniform temperature environment, accelerate the cement hydration reaction, and reduce energy consumption and environmental pollution to meet the construction needs under extreme climatic conditions. Summary of the invention

[0004] In order to solve the shortcomings of the background technology, the present invention provides a cold-region power transmission and transformation concrete foundation maintenance device and maintenance method, which increases the frost resistance and durability of concrete and improves the structural performance of concrete through a new concrete maintenance method.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A cold region power transmission and transformation concrete foundation maintenance device, consisting of a frame fixing system, a steam system, and a power system, wherein:

[0007] The frame fixing system is composed of a concrete bottom plate, concrete columns, and heat-insulating side plates; the concrete bottom plate is connected to the concrete columns by a mortise and tenon structure; the concrete columns are connected to the heat-insulating side plates by bolts; deformation sensors, humidity sensors, and temperature sensors are arranged on the outside of the heat-insulating side plates to obtain deformation, displacement, and temperature data of the maintenance device;

[0008] The power system is composed of an electro-activated connector, wires, an intelligent control switch, and a power box; the power box is provided with a solar panel to provide power for the entire power system through solar energy; the power box is connected to the electro-activated connector, the intelligent control switch, and the circuit of the maintenance device through wires; the electro-activated connector is fixed on the concrete column; the intelligent induction switch is preset with a weighted scoring algorithm, which uses dynamic weights to calculate the total score of the sensor data, and decides whether to activate the electro-activated connector to heat the concrete foundation according to the total score;

[0009] The steam system consists of a concrete top plate, a constant temperature water storage tank, a steam nozzle, a temperature sensing switch and a timing switch; the concrete top plate is connected to the concrete column through a mortise and tenon structure, a constant temperature water storage tank is provided on the concrete top plate, and the steam nozzle is connected to the constant temperature water storage tank; after the power system performs electrical activation heating on the concrete, when the temperature reaches a preset temperature, the temperature sensing switch is turned on, and the water in the constant temperature water storage tank is sprayed out through the steam nozzle for steam curing, and the timing switch is closed at the same time. When the steam curing time reaches the preset time, the timing switch is turned off, and the steam curing ends.

[0010] A method for curing a cold region power transmission and transformation concrete foundation using the above curing device comprises the following steps:

[0011] Step 1: excavate frozen soil at a preset location;

[0012] Step 2: Assemble the frame fixing system on site;

[0013] Step 3: Place the frame fixing system in the excavated soil, and arrange the power supply box around the soil. Before pouring, add 5-10% of graphene oxide by mass into the cement, and pour it into the curing device after stirring evenly.

[0014] Step 4: After pouring, the concrete top plate of the steam system is spliced ​​with the frame fixing system to complete the assembly of the entire curing device;

[0015] Step 5: Connect the power box to the circuit of the curing device, use the solar energy of the power box to provide energy for the power system, and perform steam curing and electric activation curing on the concrete according to the preset plan;

[0016] Step 6. After the maintenance is completed, the steam system is removed and the upper soil is backfilled. At this time, the remaining maintenance device and the concrete foundation are used together as the basic structure. The power system arranged in the maintenance device will be transformed into a deformation protection system. Through the sensors on the maintenance device, the weighted scoring algorithm preset by the intelligent sensing switch is used to calculate the total score of the sensor data using dynamic weights. Finally, it is decided whether to reactivate the electro-activated joints to heat the concrete foundation based on the total score.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The maintenance device of the present invention is a prefabricated structure, which can cope with cold-region foundations of various complex shapes and sizes: the prefabricated structural unit adopts prefabrication construction technology, the component form is relatively uniform and the structure is relatively simple, which can effectively shorten the production period, reduce production costs and improve the turnover rate of facilities;

[0019] 2. The present invention can realize the maintenance of power transmission and transformation foundation concrete without interference from external factors, especially in winter when the ambient temperature is low, and can ensure that the concrete strength increases rapidly during the early maintenance period;

[0020] 3. The present invention uses a weighted scoring algorithm and dynamic weights to calculate the total score. Finally, according to the total score, it is decided whether to activate the deformation prevention and control system and heat the concrete foundation with electric current;

[0021] 4. The maintenance device of the present invention forms a whole with the foundation, which greatly saves construction time and increases the stability and safety of the foundation in cold areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the basic arrangement of the present invention;

[0023] Figure 2 It is a schematic diagram of the concrete frame structure of the curing device of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the curing device of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection between the concrete column and the base plate of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection between the concrete column and the top plate of the present invention;

[0027] Figure 6 It is a schematic diagram of the electro-activated connector of the present invention being fixed to a column.

[0028] In the figure: 1-foundation; 2-electric wires; 21-concrete bottom plate; 22-concrete column; 23-insulated side plate; 24-bolt mouth; 31-power box; 32-electrically activated joint; 41-concrete top plate; 42-constant temperature water storage tank; 51-bottom plate connecting block; 52-bottom groove of column; 61-top plate connecting block; 62-top groove of column. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be included in the protection scope of the present invention.

[0030] The present invention provides a cold region power transmission and transformation concrete foundation maintenance device, such as Figure 1 to Figure 6 As shown, the maintenance device consists of a frame fixing system, a steam system, and an electric power system, wherein:

[0031] The frame fixing system is composed of a concrete bottom plate 21, concrete columns 22, and insulating side plates 23. In the frame fixing system, each part is a prefabricated component, which is produced in a workshop and assembled on site. The concrete bottom plate 21 is connected to the concrete columns 22 by a mortise and tenon structure, and the concrete columns 22 are connected to the insulating side plates 23 by bolts. Deformation sensors, humidity sensors, and temperature sensors are arranged on the outside of the insulating side plates 23 to obtain deformation, displacement, and temperature data of the maintenance device.

[0032] The power system is composed of an electro-activated connector 32, several wires 2, an intelligent control switch, and a power box 31. The power box 31 is provided with a solar panel to provide power for the entire power system through solar energy. The power box 31 is connected to the electro-activated connector 32, the intelligent control switch, and the circuit of the maintenance device through wires 2, respectively. The wires 2 are buried in the maintenance device, and the electro-activated connector 32 is fixed on the concrete column 22. The intelligent induction switch is preset with a weighted scoring algorithm, which uses dynamic weights to calculate the total score of the sensor data, and decides whether to activate the electro-activated connector according to the total score to heat the concrete foundation.

[0033] The steam system consists of a concrete top plate 41, a constant temperature water storage tank 42, a steam nozzle, a temperature sensing switch and a timing switch. The concrete top plate 41 is connected to the concrete column 22 through a mortise and tenon structure, a constant temperature water storage tank 42 is provided on the concrete top plate 41, and the steam nozzle is connected to the constant temperature water storage tank 42. After the power system performs electric activation heating on the concrete, when the temperature reaches the preset temperature, the temperature sensing switch is turned on, and the water in the constant temperature water storage tank 42 is sprayed out through the steam nozzle for steam curing, and the timing switch is closed at the same time. When the steam curing time reaches the preset time, the timing switch is turned off, and the steam curing ends.

[0034] In the present invention, the upper surface of the concrete bottom plate 21 is provided with bottom plate connecting blocks 51 along its four sides, the lower surface of the concrete top plate 41 is provided with top plate connecting blocks 61 opposite to the bottom plate connecting blocks 51, the bottom of the concrete column 22 is provided with a column bottom groove 52, the top of the concrete column 22 is provided with a column top groove 62, the concrete bottom plate 21 and the concrete column 22 are connected by the bottom plate connecting blocks 51 and the column bottom groove 52, and the concrete top plate 41 and the concrete column 22 are connected by the top plate connecting blocks 61 and the column top groove 62.

[0035] In the present invention, after the maintenance of the maintenance device is completed, the steam system is manually removed. At the same time, the maintenance device equipment will still be placed underground and will serve as the basic structure together with the concrete foundation. The power system will be transformed into a deformation protection system. Through the deformation sensor, humidity sensor and temperature sensor on the maintenance device, the weighted scoring algorithm preset by the intelligent sensing switch is used to calculate the total score of the sensor data using dynamic weights. Finally, according to the total score, it is decided whether to reactivate the electro-activated joint to heat the concrete foundation, thereby increasing the stability and safety of the foundation in cold areas.

[0036] In the present invention, the preset weighted scoring algorithm of the intelligent sensor switch is as follows:

[0037] (1) Assign a base weight to each factor and consider dynamically adjusting these weights to reflect changes in importance under different conditions:

[0038]

[0039] (2) For each factor, define a nonlinear scoring criterion:

[0040] An S-shaped curve is used to simulate the effect of temperature on the score, where the score changes more sensitively at low and high temperatures:

[0041]

[0042] Where: k is the steepness of the curve, T0 is the center point temperature, and T is the current temperature.

[0043] Deformation evaluation is scored linearly, using a piecewise linear function, taking into account the different effects of different angular deformations on structural stability: less than 10 -3 Score 100 points, 10 -3 to 10 -2 Linearly decreases to 50 points, 10 -2 to 10 -1 Linearly decreases to 0 points, greater than 10 -1 Score 0 points.

[0044] Humidity evaluation uses an exponential decay method to reflect the nonlinear effect of humidity:

[0045]

[0046] Where: λ is the attenuation rate, H0 is the reference humidity, and H is the current humidity.

[0047] (3) According to the above scoring criteria, calculate the score of each factor, and then use the dynamic weight to calculate the total score:

[0048] TotalScore = w T ×Score T +w θ ×Score θ +w H ×Score H

[0049] (4) Decide whether to turn on the switch based on the total score. For example, if the total score is higher than a certain threshold (such as 80), turn on the smart sensor switch; if the total score is lower than the threshold, keep the switch off.

[0050] In the present invention, the maintenance method of the cold region power transmission and transformation concrete foundation is as follows:

[0051] 1. First, use a low-frequency impact vibration frozen soil excavation mechanical device to excavate the frozen soil at a preset location, which can reduce the disturbance to the surrounding soil and thus ensure the strength of the soil;

[0052] 2. Transport the concrete base plate, concrete columns, insulation side panels and other components to the site, and assemble the maintenance device frame system on site;

[0053] 3. Place the curing device in the excavated soil, arrange power boxes around the soil, and mix cement and pour it into the curing device. It should be noted that 5% by mass of graphene oxide should be added to the concrete material to increase the conductivity of the concrete.

[0054] 4. After the concrete is poured, the concrete top plate of the steam system is spliced ​​with the frame system of the curing device. At this point, the entire curing device is assembled;

[0055] 5. Connect the power box to the circuit of the curing device, use the solar energy of the power box to provide energy for the power system, and perform steam curing and electric activation curing on the concrete according to the preset plan;

[0056] 6. Finally, after the curing is completed, the steam system will be removed manually. At the same time, the curing device equipment will still be placed underground and will serve as the basic structure together with the concrete foundation.

[0057] It should be noted that the power system arranged in the maintenance device will be transformed into a deformation protection system. Through the sensors on the maintenance device and the weighted scoring algorithm preset by the intelligent sensing switch, the total score of the sensor data is calculated using dynamic weights. Finally, based on the total score, it is decided whether to reactivate the electro-activated joints to heat the concrete foundation.

Claims

1. A cold region power transmission and transformation concrete foundation maintenance device, characterized in that The maintenance device is composed of a frame fixing system, a steam system, and an electric power system, wherein: The frame fixing system is composed of a concrete bottom plate, concrete columns, and heat-insulating side plates; the concrete bottom plate is connected to the concrete columns by a mortise and tenon structure; the concrete columns are connected to the heat-insulating side plates by bolts; deformation sensors, humidity sensors, and temperature sensors are arranged on the outside of the heat-insulating side plates to obtain deformation, displacement, and temperature data of the maintenance device; The power system is composed of an electro-activated connector, wires, an intelligent control switch, and a power box; the power box is provided with a solar panel to provide power for the entire power system through solar energy; the power box is connected to the electro-activated connector, the intelligent control switch, and the circuit of the maintenance device through wires; the electro-activated connector is fixed on the concrete column; the intelligent induction switch is preset with a weighted scoring algorithm, which uses dynamic weights to calculate the total score of the sensor data, and decides whether to activate the electro-activated connector to heat the concrete foundation according to the total score; The steam system consists of a concrete top plate, a constant temperature water storage tank, a steam nozzle, a temperature sensing switch and a timing switch; the concrete top plate is connected to the concrete column through a mortise and tenon structure, a constant temperature water storage tank is provided on the concrete top plate, and the steam nozzle is connected to the constant temperature water storage tank; after the power system performs electrical activation heating on the concrete, when the temperature reaches a preset temperature, the temperature sensing switch is turned on, and the water in the constant temperature water storage tank is sprayed out through the steam nozzle for steam curing, and the timing switch is closed at the same time. When the steam curing time reaches the preset time, the timing switch is turned off, and the steam curing ends.

2. The cold region power transmission and transformation concrete foundation maintenance device according to claim 1 is characterized in that The upper surface of the concrete bottom plate is provided with bottom plate connecting blocks along its four sides, the lower surface of the concrete top plate is provided with top plate connecting blocks opposite to the bottom plate connecting blocks, the bottom of the concrete column is provided with a column bottom groove, the top of the concrete column is provided with a column top groove, the concrete bottom plate and the concrete column are connected through the bottom plate connecting blocks and the column bottom groove, and the concrete top plate and the concrete column are connected through the top plate connecting blocks and the column top groove.

3. The cold region power transmission and transformation concrete foundation maintenance device according to claim 1 is characterized in that The weighted scoring algorithm is as follows: (1) Assign a base weight to each factor and consider dynamically adjusting these weights to reflect changes in importance under different conditions: Basic temperature weight Base deformation weights Basic moisture weight (2) For each factor, define a nonlinear scoring criterion: Use an S-shaped curve to simulate the effect of temperature on the score: Where: k is the steepness of the curve, T0 is the center point temperature, and T is the current temperature; Deformation evaluation is scored linearly, using a piecewise linear function, taking into account the different effects of different angular deformations on structural stability: less than 10 -3 Score 100 points, 10 -3 to 10 -2 Linearly decreases to 50 points, 10 -2 to 10 -1 Linearly decreases to 0 points, greater than 10 -1 0 points; Humidity evaluation uses an exponential decay method to reflect the nonlinear effect of humidity: Where: λ is the attenuation rate, H0 is the reference humidity, and H is the current humidity; (3) According to the above scoring criteria, calculate the score of each factor, and then use the dynamic weight to calculate the total score: TotalScore=in T ×Score T +in θ ×Score θ +in H ×Score H (4) Decide whether to turn on the switch based on the total score.

4. A method for curing a cold region power transmission and transformation concrete foundation using the curing device according to any one of claims 1 to 3, characterized in that The method comprises the following steps: Step 1: excavate frozen soil at a preset location; Step 2: Assemble the frame fixing system on site; Step 3: Place the frame fixing system in the excavated soil, and arrange the power supply box around the soil. Before pouring, add 5-10% of graphene oxide by mass into the cement, and pour it into the curing device after stirring evenly. Step 4: After pouring, the concrete top plate of the steam system is spliced ​​with the frame fixing system to complete the assembly of the entire curing device; Step 5: Connect the power box to the circuit of the curing device, use the solar energy of the power box to provide energy for the power system, and perform steam curing and electric activation curing on the concrete according to the preset plan; Step 6. After the maintenance is completed, the steam system is removed and the upper soil is backfilled. At this time, the remaining maintenance device and the concrete foundation are used together as the basic structure. The power system arranged in the maintenance device will be transformed into a deformation protection system. Through the sensors on the maintenance device, the weighted scoring algorithm preset by the intelligent sensing switch is used to calculate the total score of the sensor data using dynamic weights. Finally, it is decided whether to reactivate the electro-activated joints to heat the concrete foundation based on the total score.

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