CN111460720A - Concrete structure maintenance method, device, system and storage medium - Google Patents
Concrete structure maintenance method, device, system and storage medium Download PDFInfo
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- CN111460720A CN111460720A CN202010267420.1A CN202010267420A CN111460720A CN 111460720 A CN111460720 A CN 111460720A CN 202010267420 A CN202010267420 A CN 202010267420A CN 111460720 A CN111460720 A CN 111460720A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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Abstract
The application provides a concrete structure maintenance method, a device, a system and a storage medium, which relate to the technical field of building maintenance, and the method comprises the following steps: obtaining an internal temperature of the concrete structure and an ambient temperature of an external environment to which the concrete structure is exposed; determining a temperature difference between the interior temperature and the ambient temperature; determining a target temperature of water sprayed on the concrete structure based on the temperature difference; spraying water mist to the surface of the concrete structure based on the target water temperature. The application file considers the internal and external temperature difference value of the concrete structure to regulate the temperature of the concrete structure, solves the cracking problem caused by the internal and external temperature difference value of the concrete, and can improve the service life and the structural strength of the concrete structure.
Description
Technical Field
The application relates to the technical field of building maintenance, in particular to a concrete structure maintenance method, a device, a system and a storage medium.
Background
Concrete is the most common building material in the engineering fields of water conservancy and hydropower, road traffic, civil engineering and construction, and the like, and a concrete structure is the most common structure in the fields. Because the concrete material has the characteristics of high compressive strength and low tensile strength, cracks are common diseases of concrete structures. Concrete buildings such as concrete dams, aqueducts and bridges, tunnel lining structures and the like are always cracked in construction periods and operation periods. The occurrence of cracks weakens the strength and the rigidity of the concrete structure, brings potential safety hazards to the concrete structure, and simultaneously influences the service life of the concrete structure due to water inflow, damp-heat circulation, freezing and the like of the cracks. Therefore, the anti-cracking is an important task for the construction and the operation management of the concrete structure.
Cracks of the concrete structure are mostly generated during construction, the temperature inside the concrete structure is increased due to hydration heat after the concrete is poured, the temperature of the surface of the concrete structure is changed due to the influence of the atmospheric temperature, when the surface temperature is lowered, an internal and external temperature difference is formed, a tensile stress is caused on the surface of the concrete, and the cracks are generated when the tensile stress exceeds the strength of the concrete. Meanwhile, surface shrinkage can occur after the surface is dehydrated and dried, surface shrinkage tensile stress can also be caused, overproof tensile stress is more easily generated by superposition with temperature difference tensile stress, and concrete cracking is caused.
Disclosure of Invention
Embodiments of the present application provide a method, an apparatus, a system and a storage medium for maintaining a concrete structure, so as to alleviate the problem of poor cracking prevention effect in the prior art.
An embodiment of the present application provides a method for maintaining a concrete structure, including:
obtaining an internal temperature of a concrete structure and an ambient temperature of an external environment to which the concrete structure is exposed; determining a temperature difference between the interior temperature and the ambient temperature; determining a target temperature of water sprayed on the concrete structure based on the temperature difference; and spraying water mist to the surface of the concrete structure based on the target water temperature.
In the implementation process, the target water temperature sprayed on the concrete structure is determined based on the internal temperature and the ambient temperature, and the target water temperature which is beneficial to preventing the concrete structure from cracking can be more accurately determined, so that the temperature of the concrete structure can be accurately adjusted, and the service life and the structural strength of the concrete structure are improved.
Optionally, the determining a target temperature of water sprayed on the concrete structure based on the internal temperature and the ambient temperature comprises: determining the target water temperature through a first target water temperature calculation formula based on the interior temperature and the ambient temperature when the temperature difference value is greater than an allowable temperature difference value, the first target water temperature calculation formula including:
wherein, TWRepresenting said target water temperature, TCWhich is indicative of the internal temperature of the heat exchanger,
the allowable temperature difference value representing crack prevention of the concrete structure.
In the implementation process, the target water temperature is calculated based on the allowable temperature difference value and the internal temperature of the concrete structure so as to ensure that the temperature difference between the internal temperature and the environmental temperature is smaller than the allowable temperature difference value, and the concrete structure is accurately adjusted in temperature, so that the problem of surface cracks of the concrete structure is solved, and the service life and the structural strength of the concrete structure are improved.
Optionally, the spraying water mist to the surface of the concrete structure based on the target water temperature comprises: obtaining an ambient humidity of an exposed external environment of the concrete structure; and spraying water mist to the surface of the concrete structure based on the target water temperature when the temperature difference between the internal temperature and the ambient temperature is greater than an allowable temperature difference value or the ambient humidity is less than the allowable ambient humidity.
In the implementation process, water mist is sprayed on the surface of the concrete structure based on the temperature difference between the internal temperature and the ambient temperature or the ambient humidity, the problem of surface cracks of the concrete structure can be more accurately relieved by increasing the ambient humidity as a judgment condition, and the service life and the structural strength of the concrete structure are improved.
Optionally, the method further comprises: determining whether to adjust a water spray flow rate to the concrete structure based on the internal temperature.
In the implementation process, the cooling rate of the concrete structure can be controlled by controlling the regulation of the water spray flow, and cracks are prevented from occurring in the process of cooling the concrete structure by using water spray.
Optionally, the determining whether to adjust the amount of water sprayed to the concrete structure based on the internal temperature comprises: determining a cooling rate of the concrete structure based on a variation amount of the internal temperature for a preset time period; and when the temperature reduction rate is greater than the allowable temperature reduction rate, reducing the water spraying flow rate sprayed to the concrete structure.
In the implementation process, the cooling rate of the concrete structure can be controlled by controlling the regulation of the water spraying flow, and the phenomenon that the concrete structure exceeds the bearable cooling rate to cause cracks in the process of cooling by using water spraying is avoided.
Optionally, the determining the cooling rate of the concrete structure based on the amount of change of the internal temperature within a preset time period includes: determining the cooling rate of the concrete structure through a cooling rate calculation formula based on the variation of the internal temperature within a preset time period, wherein the cooling rate calculation formula comprises:
wherein α represents the rate of cooling of the concrete structure.
In the implementation process, the cooling rate is maintained to be less than the allowable cooling rate for cracking prevention of the concrete structure, so that cracks can be avoided in the process of cooling the concrete structure by using water spray, the structural strength of the concrete structure is improved, and the service life of the concrete structure is prolonged.
Embodiments of the present application also provide a concrete structure maintenance device, the device includes:
an acquisition module for acquiring an internal temperature of a concrete structure and an ambient temperature of an external environment to which the concrete structure is exposed;
the calculation module is used for determining the temperature difference value between the internal temperature and the ambient temperature and determining the target water temperature sprayed on the concrete structure based on the temperature difference value;
and the execution module is used for spraying water mist to the surface of the concrete structure based on the target water temperature.
In the implementation process, the target water temperature sprayed on the concrete structure is determined based on the internal temperature and the ambient temperature, and the target water temperature which is beneficial to preventing the concrete structure from cracking can be more accurately determined, so that the temperature of the concrete structure can be accurately adjusted, and the service life and the structural strength of the concrete structure are improved.
Optionally, the calculation module is specifically configured to: determining the target water temperature through a first target water temperature calculation formula based on the interior temperature and the ambient temperature when the temperature difference value is greater than an allowable temperature difference value, the first target water temperature calculation formula including:
wherein, TWRepresenting said target water temperature, TCWhich is indicative of the internal temperature of the heat exchanger,
the allowable temperature difference value representing crack prevention of the concrete structure.
In the implementation process, the target water temperature is calculated based on the allowable temperature difference value and the internal temperature of the concrete structure so as to ensure that the temperature difference between the internal temperature and the environmental temperature is smaller than the allowable temperature difference value, and the concrete structure is accurately adjusted in temperature, so that the problem of surface cracks of the concrete structure can be solved, and the service life and the structural strength of the concrete structure are improved.
Optionally, the execution module is specifically configured to: obtaining an ambient humidity of an exposed external environment of the concrete structure; and spraying water mist to the surface of the concrete structure based on the target water temperature when the temperature difference between the internal temperature and the ambient temperature is greater than an allowable temperature difference or the ambient humidity is less than an allowable ambient humidity.
In the implementation process, water mist is sprayed on the surface of the concrete structure based on the temperature difference between the internal temperature and the ambient temperature or the ambient humidity, the problem of surface cracks of the concrete structure can be more accurately relieved by increasing the ambient humidity as a judgment condition, and the service life and the structural strength of the concrete structure are improved.
Optionally, the calculation module is specifically configured to determine whether to adjust a water spray flow rate to the concrete structure based on the internal temperature.
In the implementation process, the cooling rate of the concrete structure can be controlled by controlling the regulation of the water spray flow, and cracks are prevented from occurring in the process of cooling the concrete structure by using water spray.
Optionally, the calculation module is specifically configured to determine a cooling rate of the concrete structure based on a variation of the internal temperature for a preset time period; and when the temperature reduction rate is greater than the allowable temperature reduction rate, reducing the water spraying flow rate sprayed to the concrete structure.
In the implementation process, the cooling rate of the concrete structure can be controlled by controlling the regulation of the water spray flow, and cracks are prevented from occurring in the process of cooling the concrete structure by using water spray.
Optionally, the calculation module is specifically configured to: determining the cooling rate of the concrete structure through a cooling rate calculation formula based on the variation of the internal temperature within the preset time, wherein the cooling rate calculation formula comprises:
wherein α represents the rate of cooling of the concrete structure.
In the implementation process, the cooling rate is maintained to be less than the allowable cooling rate for cracking prevention of the concrete structure, so that cracks can be avoided in the process of cooling the concrete structure by using water spray, the structural strength of the concrete structure is improved, and the service life of the concrete structure is prolonged.
Embodiments of the present application further provide a concrete structure maintenance system, the system includes:
the concrete temperature sensor is arranged inside concrete, the environment temperature sensor is arranged in an external environment exposed by the concrete, and the processing equipment is respectively in communication connection with the concrete temperature sensor, the environment temperature sensor and the temperature regulating water pump;
the concrete temperature sensor is used for measuring the internal temperature of the concrete;
the environment temperature sensor is used for measuring the environment temperature of the external environment;
the processing equipment is used for determining the temperature difference between the internal temperature and the ambient temperature and determining the target water temperature sprayed on the concrete structure based on the temperature difference;
the temperature-adjusting water pump is used for spraying water mist of the target water temperature to the concrete based on the target water temperature.
In the implementation process, the target water temperature sprayed on the concrete structure is determined based on the internal temperature and the ambient temperature, and the target water temperature which is beneficial to preventing the concrete structure from cracking can be more accurately determined, so that the temperature of the concrete structure can be accurately adjusted, and the service life and the structural strength of the concrete structure are improved.
Optionally, the concrete structure maintenance system further comprises:
the humidity sensor is arranged in the external environment exposed by the concrete structure and used for measuring the environmental humidity of the external environment of the concrete structure, and the humidity sensor is in communication connection with the processing equipment; the processing device is used for determining the target water temperature of the temperature-adjusting water pump based on the temperature difference value or determining the target water temperature of the temperature-adjusting water pump based on the environment humidity.
In the implementation process, the target water temperature is determined based on the temperature difference between the internal temperature and the ambient temperature or the ambient humidity, and the humidity is increased to serve as a parameter for determining the target temperature, so that the accuracy of the target water temperature is further improved, the problem of surface cracks of the concrete structure can be more accurately solved, and the service life and the structural strength of the concrete structure are improved.
Embodiments of the present application also provide a storage medium, in which computer program instructions are stored, and when the computer program instructions are executed by a processor, the steps in the above method are executed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Fig. 1 is a flowchart illustrating steps of a method for maintaining a concrete structure according to an embodiment of the present disclosure.
Fig. 2 is a flowchart illustrating a step of spraying water mist on a surface of a concrete structure based on a target water temperature according to an embodiment of the present disclosure.
Fig. 3 is a flowchart illustrating steps of another method for maintaining a concrete structure according to an embodiment of the present disclosure.
Fig. 4 is a flowchart illustrating a step of determining whether to regulate the flow of water sprayed to the concrete structure based on the internal temperature according to an embodiment of the present disclosure.
Fig. 5 is a block diagram of a concrete structure maintenance system according to an embodiment of the present disclosure.
Fig. 6 is a schematic structural diagram of a temperature-regulated water pump according to an embodiment of the present application.
Fig. 7 is a schematic view of a concrete structure maintenance device according to an embodiment of the present application.
Icon: 50-concrete structure maintenance system; 501-concrete temperature sensor; 502-ambient temperature sensor; 503-a processing device; 504-temperature regulating water pump; 505-a humidity sensor; 506-measurement and control equipment; 5041-a valve; 5042-a water intake device; 5043-temperature-controlled heater; 5044-a water outlet device; 5045-spray head; 60-concrete structure maintenance equipment; 601-an obtaining module; 602-a calculation module; 603-execution module.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
In the description of the present application, it is noted that the terms "first", "second", and the like are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
An embodiment of the present application provides a method for maintaining a concrete structure, please refer to fig. 1, where fig. 1 is a flowchart illustrating steps of the method for maintaining a concrete structure according to the embodiment of the present application. The method comprises the following steps:
step S1: the internal temperature of the concrete structure and the ambient temperature of the external environment to which the concrete structure is exposed are obtained.
The internal temperature of the concrete structure can be measured by a temperature sensor or a thermometer positioned inside the concrete structure, and the temperature sensor or the thermometer inside the concrete structure automatically measures the internal temperature of the concrete structure; the environmental temperature of the external environment to which the concrete structure is exposed can be measured by a thermometer or a temperature sensor located in the external environment, the thermometer or the temperature sensor of the external environment automatically measures the external environment, and the temperature inside the concrete structure and the temperature of the external environment are automatically measured, so that the intelligence of measured data is improved.
Step S2: a temperature difference between the interior temperature and the ambient temperature is determined.
Step S3: and determining the target water temperature sprayed on the concrete structure based on the temperature difference.
Step S4: spraying water mist to the surface of the concrete structure based on the target water temperature.
Optionally, step S2 specifically includes: when a temperature difference value between the interior temperature and the ambient temperature is greater than an allowable temperature difference value, determining the target water temperature through a first target water temperature calculation formula based on the interior temperature and the ambient temperature, the first target water temperature calculation formula including:
wherein, TWIndicating the target water temperature, TCWhich is indicative of the internal temperature of the heat exchanger,
indicating the allowable temperature difference for crack prevention of the concrete structure.
In order to resist the tensile stress caused by the temperature difference in the concrete structure, the internal temperature of the concrete structure and the ambient temperature of the external environment to which the concrete structure is exposed are obtained in the construction period, the temperature difference between the internal temperature of the concrete structure and the ambient temperature of the external environment to which the concrete structure is exposed is kept below the allowable temperature difference value for crack prevention of the concrete structure, the surface of the concrete structure can be ensured not to crack due to the tensile stress, and the strength and the service life of the concrete structure can be improved. Therefore, the present embodiment determines the target water temperature based on the temperature difference between the internal temperature and the ambient temperature and the allowable temperature difference value at step S3.
In practical application, the allowable temperature difference value for preventing the cracking of the concrete structure
The concrete parameter testing method can be obtained by combining a finite element simulation analysis method with a test empirical value according to concrete parameters.
In the above steps, the temperature difference and the target water temperature are automatically calculated by a computing device, which refers to a device with computing function, such as a computer.
Referring to fig. 2, fig. 2 is a flowchart illustrating a step of spraying water mist on a surface of a concrete structure based on a target water temperature according to an embodiment of the present application. Optionally, step S4 includes:
step S41: the ambient humidity of the exposed external environment of the concrete structure is obtained.
Step S42: and spraying water mist to the surface of the concrete structure based on the target water temperature when the temperature difference between the internal temperature and the ambient temperature is greater than the allowable temperature difference or the ambient humidity is less than the allowable ambient humidity.
As an embodiment, the allowable environmental humidity can be obtained by using a finite element simulation analysis method in combination with experimental empirical values according to the parameters of the concrete. The environmental humidity can be automatically measured through the humidity measuring instrument, the size relation between the temperature difference value of the internal temperature and the environmental temperature and the allowable temperature difference value and the size relation between the environmental humidity and the allowable environmental humidity are judged through the computing equipment, and the intelligence of the concrete structure maintenance method is improved.
Fig. 3 is a flowchart illustrating steps of another method for maintaining a concrete structure according to an embodiment of the present disclosure. Optionally, after step S4, the method for maintaining a concrete structure further includes:
step S5: it is determined whether to adjust a water spray flow rate to the concrete structure based on the internal temperature.
Referring to fig. 4, fig. 4 is a flowchart illustrating a step of determining whether to reduce the amount of water sprayed to the concrete structure based on the internal temperature according to an embodiment of the present application. Alternatively, step S5 may be divided into the following sub-steps:
step S51: the cooling rate of the concrete structure is determined based on the amount of change in the internal temperature within a preset time period.
Step S52: and when the temperature reduction rate is greater than the allowable temperature reduction rate, reducing the water spraying flow rate sprayed to the concrete structure.
The cooling rate can be obtained by taking the derivative of the internal temperature of the concrete structure at a certain preset time, that is, by measuring the differential of the variation of the internal temperature for a preset time. The preset duration is the duration of monitoring the internal temperature.
In actual production life, the allowable cooling rate can be obtained by combining a finite element simulation analysis method with experimental empirical values according to concrete parameters.
In the concrete structure pouring construction period, when the temperature reduction rate in the concrete structure is too high, the tensile stress generated on the surface of the concrete exceeds the bearing strength of the concrete, and cracks are also generated. In order to reduce the cracks caused by the excessive cooling rate, the cooling rate is reduced by reducing the water spraying flow rate to the concrete structure through step S5, and the tensile stress is controlled within the range that the concrete structure can bear.
Specifically, step S51 may be implemented to calculate the cooling rate according to a cooling rate calculation formula, where the cooling rate calculation formula includes:
wherein α is the rate of cooling of the concrete structure.
In all the steps, the calculation of the cooling rate and the judgment of the size relation between the cooling rate and the allowable cooling rate are automatically completed through the calculation equipment, so that the intelligence of the concrete curing method can be improved.
Referring to fig. 5, fig. 5 is a block diagram of a concrete structure maintenance system according to an embodiment of the present disclosure. The concrete structure maintenance system 50 can cooperate with the concrete structure maintenance method provided by the embodiment of the application.
The concrete structure maintenance system 50 includes: concrete temperature sensor 501, ambient temperature sensor 502, treatment facility 503 and temperature regulating water pump 504, concrete temperature sensor 501 sets up in the inside of concrete structure, and ambient temperature sensor 502 sets up in the external environment that concrete structure exposes, and treatment facility 503 is connected with concrete temperature sensor 501, ambient temperature sensor 502 and temperature regulating water pump 504 communication respectively.
A concrete temperature sensor 501 for measuring the internal temperature of the concrete structure; an ambient temperature sensor 502 for measuring an ambient temperature of an external environment; a processing device 503 for determining a temperature difference between the interior temperature and the ambient temperature, and determining a target water temperature sprayed on the concrete structure based on the temperature difference; and a temperature-adjusting water pump 504 for spraying water mist of the target water temperature to the concrete structure based on the target water temperature.
As an embodiment, the concrete temperature sensor 501 and the ambient temperature sensor 502 can adopt a non-contact type, and since the temperature change on the surface of the concrete structure and the temperature change in the interior of the concrete structure are rapid, the temperature change can be sensitively captured by adopting the non-contact type temperature sensor. The most commonly used non-contact thermometers are based on the fundamental law of blackbody radiation, known as radiation thermometers. Radiation thermometry includes brightness (see optical pyrometer), radiation (see radiation pyrometer) and colorimetry (see colorimeter). For automatic measurement and control of the solid surface temperature, additional mirrors may be used to form the hohlraum with the measured surface. The effect of the additional radiation can increase the effective radiation and the effective emissivity of the surface to be measured. And correspondingly correcting the measured temperature by using the effective emission coefficient through an instrument to finally obtain the real temperature of the measured surface. The most typical additional mirror is a hemispherical mirror. The diffused radiation energy of the measured surface near the center of the sphere is reflected by the hemispherical mirror back to the surface to form additional radiation, so that the surface emissivity of the material in the effective emission coefficient formula is improved, and rho is the reflectivity of the mirror. For radiometric measurement of the true temperature of the gaseous and liquid media, a method of inserting a tube of heat resistant material to a depth to form the blackbody cavity may be used. And calculating the effective emission coefficient of the cylinder cavity after the effective emission coefficient is in thermal equilibrium with the medium. The measured cavity bottom temperature (namely the medium temperature) can be corrected by the value in automatic measurement and control to obtain the real temperature of the medium.
The advantages of the non-contact temperature sensor are: the upper measurement limit is not limited by the temperature resistance of the temperature sensing element, so that the maximum measurable temperature is not limited in principle. With the development of infrared technology, radiation temperature measurement is gradually expanded from visible light to infrared, and the radiation temperature measurement is adopted from below 700 ℃ to normal temperature and has high resolution.
The processing device 503 may be a central processor with data processing capabilities or a server.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a temperature-regulated water pump according to an embodiment of the present application. Optionally, the temperature-adjusting water pump 504 includes a valve 5041, a water inlet 5042, a temperature-controlling heater 5043, a water outlet 5044 and a spray head 5045, the valve 5041 is in communication with the measurement and control device 506, a water outlet of the water inlet 5042 is connected to a water inlet of the valve 5041 through a water pipe, a water inlet of the temperature-controlling heater 5043 is connected to a water outlet of the valve 5041 through a water pipe and is in communication with the measurement and control device 506, a water inlet of the water outlet 5044 is connected to a water outlet of the temperature-controlling heater 5043 through a water pipe, and a water outlet of the water outlet 5044 is connected to the spray head 5045 through a water pipe.
The valve 5041 is used for adjusting the flow rate of the sprayed water mist of the temperature-adjusting water pump 504 based on the speed-adjusting instruction.
The temperature control heater 5043 is used for adjusting the temperature of the sprayed water mist of the temperature-adjusting water pump 504 to reach the target water temperature based on the temperature-adjusting instruction.
As an embodiment, a plurality of temperature and humidity adjusting water pumps 504 can be provided, and one or more spray heads 5045 can be installed on each temperature and humidity adjusting water pump 504 to be connected, so as to ensure that the water mist sprayed from the spray heads can cover the whole surface of the concrete structure. In the actual arrangement of the spray heads, when the concrete surface is a horizontal plane or an inclined plane, the spray heads 5045 are arranged in rows to ensure that the water mist sprayed to the concrete surface through the spray heads 5045 can cover the surface of the concrete structure.
Optionally, the concrete structure maintenance system 50 further comprises: the humidity sensor 505 is arranged in the external environment exposed by the concrete structure, the humidity sensor 505 is used for measuring the environmental humidity of the external environment of the concrete structure, and the humidity sensor 505 is in communication connection with the processing equipment 503. At this time, the processing device 503 is configured to determine a target water temperature of the temperature-controlled water pump 504 based on the temperature difference, or determine a target water temperature of the temperature-controlled water pump 504 based on the ambient humidity.
Optionally, the concrete structure maintenance system 50 further comprises: measurement and control equipment 506 is configured to: collecting the internal temperature, the ambient temperature and the ambient humidity; transmitting the internal temperature, the ambient temperature data, and the ambient humidity to the processing device 503; and receiving an instruction and a temperature regulating instruction which are from the processing equipment 503 and are used for regulating the water spraying amount of the temperature regulating water pump to the concrete structure, wherein the measurement and control equipment 506 is respectively in communication connection with the concrete temperature sensor 501, the environment temperature sensor 502, the humidity sensor 505 and the processing equipment 503.
It is understood that the instruction for adjusting the amount of water sprayed by the temperature-adjusting water pump 504 onto the concrete structure is generated by the processing device 503 based on the cooling rate, and the temperature-adjusting instruction is generated by the processing device 503 based on the internal temperature or the ambient temperature or generated by the processing device 503 based on the ambient humidity.
It can be understood that the measurement and control device 506 can be divided according to the functions of the measurement and control units, and can be divided into a centralized measurement and control unit and an independent comprehensive measurement and control unit. The centralized measurement and control unit can realize a certain single function of data acquisition or control, such as a remote measurement unit and a remote control unit. The independent comprehensive measurement and control unit can realize the measurement and control functions of various signals. At present, many devices form a measurement and control device, and mainly use a single chip microcomputer and a Digital Signal Processor (DSP) chip.
As an embodiment, in order to further reduce the internal temperature of the concrete structure, a temperature reduction device, such as a water pipe or an air pipe, may be embedded inside the concrete, and water at a predetermined temperature may be introduced into the water pipe according to actual requirements, or wind at a predetermined temperature and a predetermined wind speed may be introduced into the air pipe according to actual requirements, so as to achieve the purpose of reducing the internal temperature of the concrete structure.
Referring to fig. 7, fig. 7 is a schematic view of a concrete structure maintenance device according to an embodiment of the present application. The concrete structure maintenance device 60 includes:
an obtaining module 601, configured to obtain an internal temperature of the concrete structure and an ambient temperature of an external environment to which the concrete structure is exposed;
a calculation module 602 for determining a temperature difference between the interior temperature and the ambient temperature and determining a target temperature of water sprayed on the concrete structure based on the temperature difference.
And an execution module 603 for spraying water mist to the surface of the concrete structure based on the target water temperature.
Optionally, the calculating module 602 is specifically configured to: when the temperature difference value is greater than the allowable temperature difference value, determining a target water temperature through a first target water temperature calculation formula based on the internal temperature and the ambient temperature, the first target water temperature calculation formula including:
wherein, TWIndicating the target water temperature, TCWhich is indicative of the internal temperature of the heat exchanger,
indicating the allowable temperature difference for crack prevention of the concrete structure.
Optionally, the executing module 603 is specifically configured to: obtaining an ambient humidity of an exposed external environment of the concrete structure; and spraying water mist to the surface of the concrete structure based on the target water temperature when the temperature difference between the internal temperature and the ambient temperature is greater than the allowable temperature difference or the ambient humidity is less than the allowable ambient humidity.
Optionally, the calculation module 602 is specifically configured to determine whether to reduce the amount of water sprayed toward the concrete structure based on the internal temperature.
Optionally, the calculating module 602 is specifically configured to determine a cooling rate of the concrete structure based on the internal temperature; and when the temperature reduction rate is greater than the allowable temperature reduction rate, reducing the water spraying flow rate sprayed to the concrete structure.
Optionally, the calculating module 602 is specifically configured to: based on the internal temperature, the cooling rate of the concrete structure is determined through a cooling rate calculation formula, wherein the cooling rate calculation formula comprises:
wherein α is the cooling rate of the concrete structure.
The present embodiment also provides a storage medium, in which computer program instructions are stored, and when the computer program instructions are executed by a processor, the steps in any one of the above methods are executed.
Alternatively, the electronic device may be a Personal Computer (PC), a tablet PC, a smart phone, a Personal Digital Assistant (PDA), or other electronic devices.
In summary, the present application provides a method, an apparatus, a system and a storage medium for maintaining a concrete structure, the method comprising: obtaining an internal temperature of a concrete structure and an ambient temperature of an external environment to which the concrete structure is exposed; determining a temperature difference between the interior temperature and the ambient temperature; determining a target temperature of water sprayed on the concrete structure based on the temperature difference; and spraying water mist to the surface of the concrete structure based on the target water temperature.
In the implementation process, the target water temperature sprayed on the concrete structure is determined based on the internal temperature and the ambient temperature, and the target water temperature which is beneficial to preventing the concrete structure from cracking can be more accurately determined, so that the temperature of the concrete structure can be accurately adjusted, and the service life and the structural strength of the concrete structure are improved.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. The apparatus embodiments described above are merely illustrative, and for example, the block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of devices according to various embodiments of the present application. In this regard, each block in the block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams, and combinations of blocks in the block diagrams, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Therefore, the present embodiment further provides a readable storage medium, in which computer program instructions are stored, and when the computer program instructions are read and executed by a processor, the computer program instructions perform the steps of any of the block data storage methods. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A method of maintaining a concrete structure, the method comprising:
obtaining an internal temperature of a concrete structure and an ambient temperature of an external environment to which the concrete structure is exposed;
determining a temperature difference between the interior temperature and the ambient temperature;
determining a target temperature of water sprayed on the concrete structure based on the temperature difference;
spraying water mist to the surface of the concrete structure based on the target water temperature.
2. The method of claim 1, wherein determining a target temperature of water sprayed on the concrete structure based on the temperature difference comprises:
determining the target water temperature through a first target water temperature calculation formula based on the interior temperature and the ambient temperature when the temperature difference value is greater than an allowable temperature difference value, the first target water temperature calculation formula including:
wherein, TWRepresenting said target water temperature, TCWhich is indicative of the internal temperature of the heat exchanger,
the allowable temperature difference value representing crack prevention of the concrete structure.
3. The method of claim 1, wherein spraying a water mist onto the surface of the concrete structure based on the target water temperature comprises:
obtaining an ambient humidity of an exposed external environment of the concrete structure;
and spraying water mist to the surface of the concrete structure based on the target water temperature when the temperature difference between the internal temperature and the ambient temperature is greater than an allowable temperature difference or the ambient humidity is less than an allowable ambient humidity.
4. The method of claim 1, further comprising:
determining whether to adjust a water spray flow rate to the concrete structure based on the internal temperature.
5. The method of claim 4, wherein said determining whether to adjust the amount of water sprayed toward the concrete structure based on the internal temperature comprises:
determining a cooling rate of the concrete structure based on a variation amount of the internal temperature for a preset time period;
and when the temperature reduction rate is greater than the allowable temperature reduction rate, reducing the water spraying flow rate sprayed to the concrete structure.
6. The method of claim 5, wherein the determining the cooling rate of the concrete structure based on the amount of change in the internal temperature over a preset period of time comprises:
determining the cooling rate of the concrete structure through a cooling rate calculation formula based on the variation of the internal temperature within a preset time period, wherein the cooling rate calculation formula comprises:
wherein α identifies the rate of cooling of the concrete structure.
7. A concrete structure maintenance device, characterized in that said device comprises:
an acquisition module for acquiring an internal temperature of a concrete structure and an ambient temperature of an external environment to which the concrete structure is exposed;
the calculation module is used for determining the temperature difference value between the internal temperature and the ambient temperature and determining the target water temperature sprayed on the concrete structure based on the temperature difference value;
and the execution module is used for spraying water mist to the surface of the concrete structure based on the target water temperature.
8. A concrete structure maintenance system, characterized in that said system comprises:
the concrete temperature sensor is arranged inside concrete, the environment temperature sensor is arranged in an external environment exposed by the concrete, and the processing equipment is respectively in communication connection with the concrete temperature sensor, the environment temperature sensor and the temperature regulating water pump;
the concrete temperature sensor is used for measuring the internal temperature of the concrete;
the environment temperature sensor is used for measuring the environment temperature of the external environment;
the processing equipment is used for determining the temperature difference between the internal temperature and the ambient temperature and determining the target water temperature sprayed on the concrete structure based on the temperature difference;
the temperature-adjusting water pump is used for spraying water mist of the target water temperature to the concrete based on the target water temperature.
9. The system of claim 8, wherein the concrete structure maintenance system further comprises:
the humidity sensor is arranged in the external environment exposed by the concrete structure and used for measuring the environmental humidity of the external environment of the concrete structure, and the humidity sensor is in communication connection with the processing equipment;
the processing device is used for determining the target water temperature of the temperature-adjusting water pump based on the temperature difference value or determining the target water temperature of the temperature-adjusting water pump based on the environment humidity.
10. A storage medium having stored thereon computer program instructions for executing the steps of the method according to any one of claims 1 to 6 when executed by a processor.
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