Concrete dam pouring temperature control method, system, device and medium

Abstract

The application discloses a temperature control method, system, device and medium based on concrete dam pouring, and relates to the field of hydraulic engineering. The temperature control system based on concrete dam pouring comprises a cold water pipe system and a raw material pre-cooling device; a strong constraint area, a weak constraint area and a non-constraint area are preset in a concrete dam pouring block; cold water pipes of the cold water pipe system are laid at different preset intervals in the strong constraint area, the weak constraint area and the non-constraint area; the method comprises the following steps: determining a pouring mode based on an environment temperature during a pouring period; in a high-temperature mode, adjusting the temperature of pouring materials by the raw material pre-cooling device based on a first stockyard temperature when the strong constraint area is poured, a second stockyard temperature when the weak constraint area is poured and a third stockyard temperature when the non-constraint area is poured; and adjusting the dam body temperature of the concrete dam by the cold water pipe system based on a cooling time during a cooling period. The application can take into account the temperature requirements of different positions in the concrete dam and realize accurate regulation and control.

Description

Technical Field

[0001] This application relates to the field of water conservancy engineering, and in particular to a temperature control method, system, equipment and medium based on concrete dam casting. Background Technology

[0002] Concrete dams are widely used in large-scale water conservancy projects due to their advantages such as high construction efficiency, reliable structural safety, and convenient operation and management.

[0003] During the pouring process, a dam body is divided into many dam sections, and pouring is carried out according to the corresponding pouring blocks of the dam sections. After the concrete is poured, the heat of hydration of the cementitious material is released in a concentrated manner, and the internal temperature rises sharply. Due to the large size of the dam structure, poor heat dissipation conditions, and the fact that the elastic modulus of the bedrock is greater than that of the concrete, the constraint effect is significant. The larger the length and width of the dam body, the larger the contact constraint surface between the bedrock and the concrete, which is prone to generating large internal and external temperature differences and temperature stresses, thereby causing surface cracks or through cracks, seriously affecting the structural safety and long-term durability of the dam body.

[0004] Existing technologies struggle to simultaneously address the temperature requirements at different locations within a concrete dam, hindering precise temperature control. Summary of the Invention

[0005] The purpose of this application is to provide a temperature control method, system, equipment and medium based on concrete dam pouring, which can take into account the temperature requirements of different locations in the concrete dam and achieve precise control.

[0006] To achieve the above objectives, this application provides the following solution: In a first aspect, this application provides a temperature control method for concrete dam casting, and a temperature control system for concrete dam casting, comprising a cold water pipe system and a raw material precooling device; wherein... The concrete dam casting block is pre-defined with strong constraint area, weak constraint area and unconstrained area; the cold water pipe system includes cold water pipes, which are laid at a first preset interval in the strong constraint area, at a second preset interval in the weak constraint area and at a third preset interval in the unconstrained area; wherein, the first preset interval is not greater than the second preset interval and the second preset interval is not greater than the third preset interval. The raw material precooling device is used to regulate the temperature of the casting material; the method includes: During the pouring process, the ambient temperature is acquired, and the pouring mode is determined based on the ambient temperature. The pouring mode includes a high-temperature mode. In the high-temperature mode, the first entry temperature when pouring the strongly constrained area, the second entry temperature when pouring the weakly constrained area, and the third entry temperature when pouring the unconstrained area are obtained; the temperature of the pouring material is adjusted by the raw material precooling device based on the ambient temperature, the first entry temperature, the second entry temperature, and the third entry temperature. After the pouring period is completed, the temperature of the concrete dam body is adjusted through the cold water pipe system based on the cooling time.

[0007] Optionally, adjusting the temperature of the casting material using the raw material precooling device based on the ambient temperature, the first entry temperature, the second entry temperature, and the third entry temperature includes: The first constraint condition or the second constraint condition is determined based on the ambient temperature, the first entry temperature, the second entry temperature, and the third entry temperature. The first constraint condition includes: the first entry temperature is not less than a first preset constraint temperature, or the second entry temperature is not less than a second preset constraint temperature, or the third entry temperature is not less than a third preset constraint temperature; the first preset constraint temperature is not greater than the second preset constraint temperature, and the second preset constraint temperature is less than the third preset constraint temperature. The second constraint condition includes: the temperature difference between the inside and outside of the casting chamber is not less than a fourth constraint temperature, and the maximum temperature inside the casting chamber is greater than a fifth preset constraint temperature. If the first constraint condition or the second constraint condition is met, a first temperature adjustment command is sent to the raw material precooling device. The first temperature adjustment command is used to instruct the raw material precooling device to be turned on until the temperature of the casting material reaches the preset target temperature.

[0008] Optionally, after the pouring period is completed, adjusting the dam body temperature of the concrete dam through the cooling water pipe system based on the cooling time includes: After the pouring period is completed, a first control command is sent to the cold water pipe system. The first control command is used to: indicate that the target temperature of the constant temperature water tank is a first preset temperature range, and indicate that the target flow rate of the cold water pipe system is a first preset flow rate. During the second preset time period after the completion of the pouring period, a second control command is sent to the cold water pipe system. The second control command is used to: indicate that the target temperature of the constant temperature water tank is a second preset temperature range and the target flow rate of the cold water pipe system is a second preset flow rate. During the third preset time period after the completion of the pouring period, a third control command is sent to the cold water pipe system. The third control command is used to indicate that the target temperature of the constant temperature water tank is the third preset temperature range and the target flow rate of the cold water pipe system is the third preset flow rate. Wherein, the first preset time period is earlier than the second preset time period, which is earlier than the third preset time period; the first preset temperature range is not greater than the second preset temperature range, which is not greater than the third preset temperature range; and the first preset flow rate is greater than the second preset flow rate, which is greater than the third preset flow rate.

[0009] Optionally, the temperature control device further includes a surface insulation device, and the step of determining the pouring mode based on the ambient temperature includes: If the ambient temperature is not less than the fifth preset constraint temperature, the pouring mode is determined to be a high-temperature mode; If the ambient temperature is not greater than the sixth preset constraint temperature, the pouring mode is determined to be a low-temperature mode; wherein, the fifth preset constraint temperature is greater than the sixth preset constraint temperature; The temperature control method based on concrete dam casting also includes: If the pouring mode is the low-temperature mode, the inlet temperature is obtained. When the inlet temperature is less than the seventh preset constraint temperature, a heat preservation command is sent to the surface heat preservation device. The heat preservation command is used to instruct the surface heat preservation device to heat the pouring chamber.

[0010] Optionally, the cold water pipe system further includes a water quality monitoring device, a flow monitoring device, and a backwashing device; the temperature control method based on concrete dam casting further includes: Based on the flow monitoring device, it is determined whether the water pipe flow rate is lower than the first preset flow rate; If the water flow rate is lower than the first preset flow rate, a first backwash command is sent to the backwash device. The first backwash command is used to instruct the backwash device to be started. If the water flow rate is not lower than the first preset flow rate, the water quality monitoring device determines whether the water quality conditions are met. If the water quality conditions are not met, a second backwash command is sent to the backwashing device. The second backwash command is used to instruct the backwashing device to be started at a first preset cycle. If the water quality conditions are met, a third backwash command is sent to the backwashing device. The third backwash command is used to instruct the backwashing device to start at a second preset cycle; wherein the first preset cycle is shorter than the second preset cycle.

[0011] Optionally, in the high-temperature mode, the temperature control method based on concrete dam pouring further includes: sending an instruction to stop pouring during a preset high-temperature period, and sending an instruction to start pouring outside the preset high-temperature period.

[0012] Secondly, this application provides a temperature control device based on concrete dam casting, used in a temperature control system for concrete dam casting, wherein the temperature control system for concrete dam casting includes a cold water pipe system and a raw material precooling device; wherein The concrete dam casting block is pre-defined with strongly constrained areas, weakly constrained areas, and unconstrained areas; the cold water pipe system includes cold water pipes, which are laid at a first preset interval in the strongly constrained areas, at a second preset interval in the weakly constrained areas, and at a third preset interval in the unconstrained areas; wherein the first preset interval is not greater than the second preset interval, and the second preset interval is not greater than the third preset interval; the raw material precooling device is used to regulate the temperature of the casting material; Temperature control equipment based on concrete dam casting includes: The pouring module is used to acquire the ambient temperature during the pouring process and determine the pouring mode based on the ambient temperature, the pouring mode including a high-temperature mode; In the high-temperature mode, the first pouring temperature when pouring the strongly constrained area, the second pouring temperature when pouring the weakly constrained area, and the third pouring temperature when pouring the unconstrained area are obtained; the temperature of the pouring material is adjusted by a raw material precooling device based on the ambient temperature, the first pouring temperature, the second pouring temperature, and the third pouring temperature. A cooling module is used to regulate the temperature of the concrete dam body via a cold water pipe system based on the cooling time after the pouring period is completed.

[0013] Thirdly, this application provides a temperature control system based on concrete dam casting, including temperature control equipment for concrete dam casting, an inlet temperature sensor, a distributed temperature sensor, an ambient temperature sensor, a cold water pipe system, and a raw material precooling device; wherein... The concrete dam casting block is pre-defined with strong constraint area, weak constraint area and unconstrained area; the cold water pipe system includes cold water pipes, which are laid at a first preset interval in the strong constraint area, at a second preset interval in the weak constraint area and at a third preset interval in the unconstrained area; wherein, the first preset interval is not greater than the second preset interval and the second preset interval is not greater than the third preset interval. The inlet temperature sensor is used to collect the temperature of the casting material when it is put into the silo; The ambient temperature sensor is used to collect ambient temperature data. The distributed temperature sensors are deployed in strongly constrained areas, weakly constrained areas, and unconstrained areas, respectively, to collect the regional temperature within the strongly constrained areas, weakly constrained areas, and unconstrained areas. The raw material precooling device is used to regulate the temperature of the casting material; The temperature control device based on concrete dam casting is used to implement the steps of the temperature control method based on concrete dam casting described in any one of the above-mentioned methods.

[0014] Fourthly, this application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the temperature control method based on concrete dam pouring as described above.

[0015] Fifthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the temperature control method based on concrete dam pouring described above.

[0016] Sixthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the temperature control method based on concrete dam pouring described above.

[0017] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides a temperature control method, system, equipment, and medium for concrete dam pouring. During the pouring stage, the method acquires the initial pouring temperature of strongly constrained, weakly constrained, and unconstrained areas. Combined with a raw material pre-cooling device, the concrete temperature is dynamically adjusted, achieving precise, tiered temperature control for different constrained areas and improving temperature adaptability during the pouring stage. During the cooling stage, a chilled water pipe system with differentiated spacing in the strongly constrained, weakly constrained, and unconstrained areas ensures heat dissipation in different areas, achieving refined, zoned temperature control throughout the entire process from pouring to cooling. This optimizes resource allocation in weakly constrained and unconstrained areas, significantly improving the overall construction quality and long-term structural stability of the concrete dam. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a temperature control system based on concrete dam pouring, provided as an embodiment of this application; Figure 2 A schematic diagram of a casting block provided in an embodiment of this application; Figure 3 A schematic diagram of a cold water pipe is provided for one embodiment of this application; Figure 4 A schematic diagram of a cooling water treatment device, a backwashing device, and a cold water pipeline provided in an embodiment of this application; Figure 5 A schematic flowchart illustrating a temperature control method based on concrete dam pouring, provided for another embodiment of this application; Figure 6 for Figure 5 A detailed flowchart of step 502; Figure 7 for Figure 5 A detailed flowchart of step 503; Figure 8 This is a schematic diagram of the functional modules of a temperature control device based on concrete dam pouring, provided for another embodiment of this application.

[0020] Figure 9 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 100 - Temperature control system based on concrete dam casting; 101 - Control center; 102 - Manual control terminal; 103 - Cast-in-place block; 201-Cold water pipe system; 202-Aggregate air cooling device; 203-Mixing water cooling device; 204-Surface insulation device; 205-Pouring execution device; 206-Early warning device; 207-Distributed temperature sensor; 208-Inlet temperature sensor; 209-Ambient temperature sensor; 301 - Cold water pipe; 302 - Cooling water treatment device; 303 - Backwashing device; 304 - Constant temperature water tank; 401-Main pipeline; 402-Extendable branch pipe; 403-Flow control valve; 404-Sedimentation tank; 405-Quartz sand filtration device; 406-Softening treatment device; 407-Disinfection device; 408-Quick connector. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that the terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0024] It should be noted that "at the time of..." in the embodiments of this application can be either at the instant when a certain situation occurs, or for a period of time after the occurrence of a certain situation. The embodiments of this application do not make specific limitations on this.

[0025] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This application provides a temperature control method based on concrete dam pouring, which can be applied to, for example... Figure 1 The temperature control system 100 based on concrete dam pouring, as shown, includes distributed temperature sensors 207, a cold water pipe system 201, a raw material precooling device, a control center 101, and a manual control terminal 102. The control center 101 communicates with the manual control terminal 102, distributed temperature sensors 207, cold water pipe system 201, and raw material precooling device via wired / wireless network connections. Data acquired by the control center 101 is processed using a temperature control method based on concrete dam pouring to issue corresponding control commands, thereby controlling the dam body temperature.

[0027] Furthermore, the control center 101 also includes a data storage system, which can store the data that the control center 101 needs to process. The data storage system can be set up separately, integrated into the control center 101, or placed in the cloud or on other servers.

[0028] Specifically, such as Figures 1-4 The temperature control system 100 based on concrete dam pouring includes distributed temperature sensors 207, a cold water pipe system 201, and a raw material precooling device; wherein: like Figure 2 When the concrete dam is poured, it is divided into multiple pouring blocks 103. For each pouring block 103, let the longest side length of the pouring block 103 be L. From the foundation surface of the concrete dam upwards, the area 0~0.2L from the foundation surface is set as the strong constraint zone, the area 0.2L~0.4L is set as the weak constraint zone, and the area above 0.4L is set as the unconstrained zone.

[0029] Distributed temperature sensor 207: Distributed temperature sensors 207 are distributed within the pre-defined strongly constrained area, weakly constrained area, and unconstrained area in the concrete dam pouring chamber to monitor the temperature of the strongly constrained area, weakly constrained area, and unconstrained area during pouring. Furthermore, the temperature sensor adopts a fiber optic grating temperature sensor, and the sensor data is sent to the control center 101 via a 5G transmission module.

[0030] Cold water piping system 201: Specifically, the cold water piping system 201 includes cold water pipes 301, flow control valve 403, constant temperature water tank 304, water tank temperature sensor, corresponding sub-controller, cooling water treatment device 302, water quality monitoring device, etc. The cold water pipe 301 is laid in different zones at different preset intervals: the first preset interval is laid in the strongly constrained zone, the second preset interval is laid in the weakly constrained zone, and the third preset interval is laid in the unconstrained zone; wherein the first preset interval is not greater than the second preset interval, and the second preset interval is not greater than the third preset interval. like Figure 3 and Figure 4 The cold water pipe 301 includes a main pipe 401 and a retractable branch pipe 402. All main pipes 401 are arranged in the same direction (for example, pipes on the same straight line can be connected end to end, and pipes on different straight lines are arranged completely parallel or approximately parallel). The retractable branch pipe 402 is connected to the main pipe 401 to form a network. The main pipes 401 can be connected to each other through the retractable branch pipe. The retractable branch pipe changes the distance between adjacent main pipes 401 by setting the retractable length, namely the first preset interval, the second preset interval, and the third preset interval. Furthermore, the main pipeline 401 uses HDPE reinforced composite pipe, with a diameter of... 40mm, arranged horizontally along the dam body; the expandable branch pipe 402 can be connected to the main pipe 401 via quick connector 408, pipe diameter The 32mm telescopic branch pipe 402 is equipped with a telescopic joint, which allows the spacing to be adjusted within the range of 1.0~1.5m; the flow control valve 403 is installed at the pipe inlet of each telescopic branch pipe 402 and is connected to the control center 101 via a network to accurately control the water flow of a single branch pipe. Furthermore, the expandable joint of the expandable branch pipe 402 adopts a corrugated compensator structure, with an outer layer wrapped with a corrosion-resistant and wear-resistant sleeve to ensure that it does not deform or get damaged during concrete compaction; the quick connector 408 adopts an expansion sealing structure with a sealing pressure ≥0.4MPa to prevent leakage during water flow.

[0031] Specifically, the flow control valve 403 is used to control the flow rate in the cold pipe, the water tank temperature sensor is used to monitor the temperature of the constant temperature water tank 304 and send it to the control center, and the constant temperature water tank 304 includes a temperature regulating device for regulating the temperature of the constant temperature water tank 304.

[0032] Furthermore, such as Figure 4 The cooling water treatment device 302 includes a sedimentation tank 404, a quartz sand filter 405, a softening treatment device 406, and a disinfection device 407, which are used to purify the cooling water, remove impurities, reduce hardness, and prevent pipe scaling and blockage. The treated cooling water is stored in a constant temperature water tank 304, which is equipped with a temperature sensor and a heating / cooling device to achieve precise control of the water temperature within the range of 5-20℃.

[0033] Specifically, the first sub-controller is used to receive and execute instructions from the control center, such as controlling the temperature of the constant temperature water tank 304.

[0034] Raw material precooling device: Specifically, the raw material precooling device is used to regulate the temperature of the casting material; The raw material precooling device includes an aggregate air-cooling device 202 and a mixing water cooling device 203. Both the aggregate air-cooling device 202 and the mixing water cooling device 203 include temperature sensors, temperature controllers (heating and cooling), and sub-controllers, etc. There are also corresponding sub-controllers used to receive instructions from the control center 101 and control the temperature in the aggregate air-cooling device 202 and the mixing water cooling device 203. Similarly, both the aggregate air-cooling device 202 and the mixing water cooling device 203 are equipped with temperature control modules to complete temperature control instructions.

[0035] Furthermore, the system also includes a surface insulation device 204, a backwashing device 303, a pouring execution device, an ambient temperature sensor 209 installed at the dam area meteorological station, an inlet temperature sensor 208 installed at the pouring chamber opening, and an early warning device 206. Surface insulation device 204: includes insulation layer, track, and insulation layer laying device; by setting up lightweight aluminum alloy track on both sides of the dam surface, placing a trolley on the track, and setting insulation material in the trolley, the insulation layer is automatically covered according to the surface temperature of the dam. Backwashing device 303: includes a high-pressure flushing pump and a backwashing pipeline, which performs backwashing on the cold water pipeline 301 according to the instructions of the control center 101 to clean the scale on the inner wall of the pipeline; Pouring execution device: Receives instructions from the control center 101 and starts or stops the pouring process based on the instructions; Inlet temperature sensor 208: Located at the pouring port, used to monitor the inlet temperature and send it to the control center 101.

[0036] Ambient temperature sensor 209: Used to monitor ambient temperature and send it to control center 101.

[0037] The early warning device 206 receives and issues early warnings, such as audible and visual warnings, according to the instructions of the control center 101, and pushes emergency control plans to the management personnel terminal.

[0038] In one exemplary embodiment, such as Figure 5 As shown, a temperature control method based on concrete dam pouring is provided. This method is executed by computer equipment, specifically by a terminal or server alone, or by both a terminal and a server. In this embodiment, the method is applied to... Figure 1 Taking the control center 101 as an example, the explanation includes the following steps 501 to 503. Wherein: Step 501: During the pouring period, obtain the ambient temperature and determine the pouring mode based on the ambient temperature. The pouring mode includes a high temperature mode. Specifically, the timing instructions sent by the manual control terminal can be obtained to determine whether the current construction status is in the pouring or cooling phase. Step 502: In high temperature mode, obtain the first pouring temperature when pouring the strongly constrained area, the second pouring temperature when pouring the weakly constrained area, and the third pouring temperature when pouring the unconstrained area; adjust the temperature of the pouring material by means of a raw material precooling device based on the ambient temperature, the first pouring temperature, the second pouring temperature, and the third pouring temperature. Specifically, when pouring different areas, the temperature at the outlet is monitored by an inlet temperature sensor to obtain the inlet temperature, which includes the first inlet temperature, the second inlet temperature, and the third inlet temperature. Specifically, the first inlet temperature is obtained when pouring the strongly constrained area, the second inlet temperature is obtained when pouring the weakly constrained area, and the third inlet temperature is obtained when pouring the unconstrained area. The temperature control strategy of the raw material precooling device is determined according to the ambient temperature and the corresponding inlet temperature to adapt to the temperature requirements of different areas.

[0039] Step 503: After the pouring period is completed, the temperature of the concrete dam body is adjusted through the cold water pipe system based on the cooling time.

[0040] Specifically, based on the characteristics of the dam body at different cooling times, the temperature of the concrete dam body is regulated through a cooling water pipe system.

[0041] By implementing steps 501 to 503 above, this embodiment of the application obtains the entry temperature of the strongly constrained area, weakly constrained area, and unconstrained area during the pouring stage. Combined with the raw material precooling device, the concrete temperature is dynamically adjusted, realizing graded and precise temperature control for different constrained areas and improving the temperature adaptability during the pouring stage. During the cooling stage, a cold water pipe system with differentiated spacing is used in the strongly constrained area, weakly constrained area, and unconstrained area to take into account heat dissipation in different areas. This achieves refined temperature control by area throughout the entire process from pouring to cooling, optimizes resource allocation in weakly constrained and unconstrained areas, and significantly improves the overall construction quality and long-term structural stability of the concrete dam.

[0042] In another exemplary embodiment of this application, in order to ensure the stable casting of the dam body at low temperatures and guarantee the casting quality of the dam body, the casting mode also includes a low-temperature mode. Step 501 determines the casting mode according to the following steps: During the pouring period, if the ambient temperature is not lower than the fifth preset constraint temperature, the pouring mode is determined to be the high temperature mode; if the ambient temperature is not higher than the sixth preset constraint temperature, the pouring mode is determined to be the low temperature mode; wherein, the fifth preset constraint temperature is higher than the sixth preset constraint temperature. As one embodiment, the fifth preset constraint temperature is 28℃~32℃, preferably set to 30℃; As one embodiment, the sixth preset constraint temperature is 0℃~5℃, preferably set to 5℃; Furthermore, during the pouring process, if the pouring mode is low temperature mode, the inlet temperature is obtained. When the inlet temperature is lower than the seventh preset constraint temperature, a heat preservation command is sent to the surface heat preservation device. The heat preservation command is used to instruct the surface heat preservation device to heat the pouring chamber.

[0043] Specifically, the seventh preset constraint temperature is set to 5℃.

[0044] Specifically, in response to the insulation command, the insulation device is activated and the insulation layer (polyethylene film + geotextile + insulation blanket) is covered based on the track to ensure that the concrete outlet temperature is ≥10℃.

[0045] Specifically, in non-high temperature mode, the raw material precooling device is in the off state; In another exemplary embodiment of this application, in order to better cope with high-temperature environments, in high-temperature mode, such as Figure 6 Step 502 specifically includes the following steps: Step 601: Obtain the first entry temperature, the second entry temperature, and the third entry temperature based on the entry temperature sensor; determine whether the first constraint condition or the second constraint condition is met based on the ambient temperature, the first entry temperature, the second entry temperature, and the third entry temperature; if the first constraint condition or the second constraint condition is met, proceed to step 602. Specifically, the first constraint condition is to satisfy one of the following three conditions: 1. The initial entry temperature shall not be lower than the first preset constraint temperature; 2. The second entry temperature shall not be lower than the second preset constraint temperature; 3. The third entry temperature shall not be lower than the third preset constraint temperature; Wherein, the first preset constraint temperature is not greater than the second preset constraint temperature, and the second preset constraint temperature is less than the third preset constraint temperature; As one embodiment, the first preset constraint temperature is set to 28℃~30℃, the second preset constraint temperature is set to 28℃~30℃, and the third preset constraint temperature is set to 30℃~32℃.

[0046] Preferably, the first and second preset constraint temperatures are both set to 28℃, and the third preset temperature is set to 32℃, ensuring that the entry temperature in the basic constraint area is ≤28℃ and the temperature in the unconstrained area is ≤32℃. Specifically, the second constraint is that the following two conditions must be met simultaneously: 1. The temperature difference between the inside and outside of the casting chamber shall not be less than the fourth preset constraint temperature; 2. The temperature inside the casting chamber is higher than the fifth preset constraint temperature; Specifically, the fourth preset constraint temperature is set to 16℃, and the fifth preset constraint temperature is set to 32℃.

[0047] Specifically, the temperature of the first region of the strongly constrained area, the temperature of the second region of the weakly constrained area, and the temperature of the third region of the unconstrained area are obtained based on distributed temperature sensors. Specifically, the maximum value among the temperatures of the first, second, and third zones is taken as the temperature inside the silo, and the difference between this maximum value and the concrete surface temperature is taken as the internal and external temperature difference.

[0048] Step 602: Send a first temperature adjustment command to the raw material precooling device. The first temperature adjustment command is used to instruct the raw material precooling device to be turned on until the temperature of the casting material reaches the preset target temperature.

[0049] Specifically, in response to the first temperature regulation command, the raw material precooling device begins to cool the raw materials. Specifically, the preset target temperature includes a first preset target temperature and a second preset target temperature; the first preset target temperature is used to indicate the target temperature of the aggregate air-cooling device, and the second preset target temperature is used to indicate the target temperature of the mixing water cooling device.

[0050] Specifically, the first preset target temperature is set within 15~20℃, and the second preset target temperature is set within 5~10℃. That is: The aggregate air-cooling device responds to the first temperature regulation command, starts working and stops when the aggregate temperature is reduced to 15~20℃; The mixing water cooling device receives the first temperature adjustment command, starts working, and stops when the mixing water temperature drops to 5-10℃.

[0051] In another exemplary embodiment of this application, in order to better cope with high temperature environments, in high temperature mode, the pouring execution device is instructed to stop pouring during a preset high temperature time period, and when the preset high temperature time period is not met, the pouring execution device is instructed to start pouring.

[0052] Furthermore, the preset high-temperature period is set to 10:00-16:00.

[0053] In another exemplary embodiment of this application, in order to achieve temperature control of the dam body during the cooling period, a first preset time period, a second preset time period, and a third preset time period are set after the completion of the pouring period. The first preset time period is earlier than the second preset time period, which is also earlier than the third preset time period. Figure 7 As shown, step 503 above is replaced by steps 701 to 703: Step 701: After the first preset time period is completed during the pouring period, a first control command is sent to the cold water pipe system. The first control command is used to: indicate that the target temperature of the constant temperature water tank is a first preset temperature range, and indicate that the target flow rate of the cold water pipe system is a first preset flow rate. Specifically, the first preset time period is 0-7 days after pouring. The cold water pipe system responds to the first control command, and the first preset temperature range of the constant temperature water tank is set to 5-10℃. The high flow mode is turned on, and the first preset flow rate is set within 20-25L / min.

[0054] Step 702: During the second preset time period after the completion of the pouring period, a second control command is sent to the cold water pipe system. The second control command is used to: indicate that the target temperature of the constant temperature water tank is the second preset temperature range, and the target flow rate of the cold water pipe system is the second preset flow rate; wherein, the first preset temperature range is not greater than the second preset temperature range, and the first preset flow rate is greater than the second preset flow rate. Specifically, the second preset time period is 8-30 days after pouring. The cold water pipe system responds to the second control command, and the second preset temperature range of the constant temperature water tank is set to 10-15℃. The medium flow mode is turned on, and the second preset flow rate is set within 15-20L / min.

[0055] Furthermore, the constant temperature water tank controls the temperature drop rate to ≤0.5℃ / d, reducing the temperature difference between the inside and outside; Step 703: After the pouring period is completed, a third control command is sent to the cold water pipe system during the third preset time period. The third control command is used to indicate that the target temperature of the constant temperature water tank is within the third preset temperature range, and the target flow rate of the cold water pipe system is within the third preset flow rate. The second preset temperature range is not greater than the third preset temperature range, and the second preset flow rate is greater than the third preset flow rate.

[0056] Specifically, the third preset time period is 31-90 days after pouring. The cold water pipe system responds to the third control command, and the third preset temperature range of the constant temperature water tank is set to 10-15℃. The low flow mode is turned on, and the third preset flow rate is set within 15-20L / min.

[0057] Specifically, according to this procedure, the dam body temperature can be gradually reduced to the design arch sealing temperature (18-22℃). When the dam body temperature reaches the design arch sealing temperature and the temperature remains stable for 3-5 consecutive days (fluctuation ≤1℃), the intelligent control center issues a temperature control termination command to shut down the cooling system and the collaborative temperature control module.

[0058] Specifically, the cooling period after concrete pouring has the following characteristics: The first 0-7 days after concrete pouring is the rapid heating stage: the cement hydration reaction is intense, the heat of hydration is released in a concentrated manner, and the internal temperature of the concrete rises rapidly and reaches its peak. If the temperature is not controlled in time, problems such as excessive temperature and excessive temperature difference between the inside and outside may occur. Therefore, it is necessary to use a large flow of low temperature cooling water to quickly reduce the peak heat of hydration. During this stage, the maximum internal temperature should be controlled to not exceed 45℃.

[0059] The temperature drops steadily for 8 to 30 days after concrete pouring: the rate of heat release from cement hydration decreases significantly, and the concrete temperature gradually drops from its peak. However, there is still a high residual heat inside, and the temperature difference between the inside and outside is large and sensitive to the rate of temperature drop. Too rapid cooling can easily cause temperature cracks. Therefore, it is necessary to control the rate of temperature drop and use medium flow cooling water to achieve slow and uniform cooling.

[0060] The temperature stabilization and convergence stage is 31 to 90 days after concrete pouring: cement hydration is basically completed and no longer releases a lot of heat. The overall temperature of the dam body gradually becomes more uniform. Only a small flow of cooling water is needed to slowly remove the residual heat and gradually reduce the temperature of the dam body to the design arch sealing temperature, so as to provide stable temperature conditions for subsequent arch sealing, grouting and other processes.

[0061] Through steps 701 to 703, the dam body can meet the following requirements during the cooling period: maximum internal temperature ≤ 45℃, internal and external temperature difference ≤ 20℃, allowable temperature difference of foundation (referring to the difference between the maximum temperature and stable temperature of concrete within the foundation constraint range) meets the conditions in Table 1, and temperature drop rate ≤ 0.5℃ / d; thus maintaining the stability of the dam body.

[0062] Table 1. Basic Allowable Temperature Difference (°C)

[0063] In another exemplary embodiment of this application, in order to ensure the efficient operation of the cold water pipe system, the method of this application further includes pipe cleaning via a backflushing device based on water quality and flow monitoring, specifically including the following methods: Step 801: Determine whether the water flow rate is lower than the first preset flow rate based on the flow monitoring device. If yes, proceed to step 802; otherwise, proceed to step 803. As one implementation method, the first preset flow rate is set to 15% of the real-time flow rate of the previous period.

[0064] Step 802 sends a first backwash command to the backwashing device, the first backwash command being used to instruct the backwashing device to be started; Step 803: Determine whether the water quality conditions are met based on the water quality monitoring device; if the water quality conditions are met, proceed to step 804; otherwise, proceed to step 805. Specifically, the water quality is determined to be unsatisfactory if the content of sensitive elements is monitored by water quality sensors and the content exceeds the standard. Step 804: Send a second backwash command to the backwashing device. The second backwash command is used to instruct the backwashing device to start at a first preset cycle. Specifically, the first preset cycle is set within the range of 3 to 5 days.

[0065] Step 805: Send a third backwash command to the backwashing device. The third backwash command is used to instruct the backwashing device to start at a second preset cycle; wherein the first preset cycle is shorter than the second preset cycle.

[0066] Specifically, the second preset cycle is set within the range of 7 to 10 days.

[0067] According to steps 801-805, the pipeline is backflushed in conjunction with water quality and flow rate. When the flow monitoring sensor detects a drop in pipeline flow rate exceeding 15%, the flushing program is automatically initiated. Automatic backflushing of the cooling water pipes is performed every 7-10 days, shortened to 3-5 days when water quality is poor. Furthermore, when an abnormal temperature is detected, the control and early warning device issues a warning and executes an emergency control plan.

[0068] Example 1 Application in a concrete dam project A concrete dam is 120m high and 450m long at the crest. It is constructed using conventional roller-compacted concrete, with a peak monthly pouring volume of 50,000 m³. 3 The specific implementation process of the temperature control method and system based on concrete dam casting of this invention is as follows: 1. System Layout: The system is divided into three temperature control zones: a strongly constrained zone (0-4m above the dam foundation), a weakly constrained zone (4-8m above the dam foundation), and an unconstrained zone (above 8m). The main pipeline of the intelligent adjustable cooling water pipe assembly adopts... 40mm HDPE reinforced composite pipe, expandable branch pipe adopts The initial spacing of 32mm HDPE pipes is set at 1.0m×1.0m in the strongly constrained zone, 1.2m×1.2m in the weakly constrained zone, and 1.5m×1.5m in the unconstrained zone. The distributed temperature monitoring module is equipped with 1200 fiber optic temperature sensors, 10 ambient temperature sensors, and 5 casting temperature sensors. The cooling water treatment module is equipped with a sedimentation tank (50m³ / s). 3 ), quartz sand filtration device, softening treatment device and high-pressure flushing pump; 2. Construction phase control: (1) Raw material pre-cooling: When the ambient temperature is 35℃ in summer, start the aggregate air cooling device to reduce the temperature of granite aggregate to 18℃, and the mixing water cooling device to reduce the water temperature to 8℃. The concrete outlet temperature is controlled at 22℃. When the ambient temperature is 3℃ in winter, turn off the pre-cooling device and control the outlet temperature at 12℃. (2) Pouring process: Pouring was carried out between 22:00 and 6:00 the next day. The temperature monitoring of the foundation confinement area showed 26℃ and the unconstrained area showed 30℃, both of which met the design requirements. After leveling and compaction, three layers of insulation were automatically covered. (3) Water cooling: The cooling system is started 20 hours after the pouring is completed. In the initial cooling stage (3~7d), 8℃ cooling water is introduced at a flow rate of 22L / min. The monitoring shows that the maximum temperature rise in the foundation constraint area is 42℃. In the middle cooling stage (8~30d), the water temperature is adjusted to 12℃ and the flow rate is 18L / min. The temperature drop rate is controlled at 0.4℃ / d. In the later cooling stage (31~90d), the water temperature is adjusted to 18℃ and the flow rate is 12L / min. Finally, the dam body temperature is stabilized at 20℃. (4) Maintenance and early warning: The pipeline back flushing procedure is started every 10 days. After flushing, the pipeline flow rate recovery rate reaches 98%. During the construction process, there was one local temperature abnormality (internal and external temperature difference of 22℃). The early warning unit issued an early warning in time, and the AI ​​decision unit adjusted the cooling water flow rate in the area to 25L / min. After 24 hours, the temperature difference recovered to 18℃. 3. Implementation results: No surface cracks or through cracks appeared in the concrete of the dam body of this project. The temperature control qualification rate reached 98%. Compared with traditional temperature control technology, the crack occurrence rate was reduced by 85%, the temperature control cost was reduced by 20%, and the construction period was shortened by 15 days.

[0069] This application includes a temperature control method based on concrete dam pouring, which has the following technical effects: The temperature of the raw materials is determined by the temperature of the strong and weak constraint areas and the unconstrained areas. The raw material pre-cooling module is activated to reduce the temperature. This solves the problem that different constraint areas have different sensitivities to the temperature of the raw materials in high-temperature environments and it is difficult to uniformly take into account the temperature. This enables differentiated and precise temperature control for different areas. Even if the ambient temperature and the temperature upon entering the dam have not yet triggered the conventional thresholds, intervention is achieved by activating the raw material pre-cooling module based on the internal and external temperature differences and the internal temperature zone. This enables dual coordinated control of external environmental conditions and internal temperature status, and coordinates the avoidance of daily high-temperature periods during pouring operations. This significantly improves the early warning and response capabilities for abnormal temperature conditions during pouring in high-temperature seasons, avoiding the risk of temperature cracks caused by excessive internal temperatures and large internal and external temperature differences, and ensuring the construction quality and structural safety of the concrete dam under extreme high-temperature conditions.

[0070] In low-temperature mode, when the temperature at the entry point is detected to be below 5°C, the surface insulation submodule is automatically activated, and the insulation layer is automatically covered after leveling and compaction. This realizes insulation measures triggered by the entry temperature under low-temperature conditions, improving the construction quality and freeze-thaw resistance of concrete dams during the pouring process in low-temperature seasons.

[0071] The age characteristics of concrete after pouring are used to divide the cooling period into three stages: initial, middle and late. The flow control valve and constant temperature water tank are intelligently adjusted to achieve differentiated water cooling in each stage. At the same time, the layout strategy of laying cold water pipes at different preset intervals in strongly constrained, weakly constrained and unconstrained areas achieves precise spatial allocation of cooling resources. This solves the problem that traditional cooling methods are difficult to dynamically match the heat of hydration release law and are prone to temperature stress runaway. It significantly improves the uniformity and stability of the temperature field of the dam body, creates reliable temperature conditions for subsequent arch sealing, grouting and other processes, and ensures the long-term structural safety and construction quality of the concrete dam.

[0072] By monitoring flow rate and water quality, timely cleaning is performed in the early stages of blockage, and adaptive cleaning and maintenance are carried out based on water quality conditions, ensuring the long-term stable operation of the cooling system.

[0073] Based on the same inventive concept, this application also provides a temperature control device for concrete dam casting, which implements the temperature control method based on concrete dam casting described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations of one or more temperature control device embodiments based on concrete dam casting provided below can be found in the limitations of the temperature control method based on concrete dam casting described above, and will not be repeated here.

[0074] In one exemplary embodiment, such as Figure 8 As shown, a temperature control device based on concrete dam casting is provided, comprising: The pouring module is used to obtain the ambient temperature during the pouring process and determine the pouring mode based on the ambient temperature. The pouring mode includes a high-temperature mode. In high-temperature mode, the first pouring temperature when pouring the strongly constrained area, the second pouring temperature when pouring the weakly constrained area, and the third pouring temperature when pouring the unconstrained area are obtained; the temperature of the pouring material is adjusted by the raw material precooling device based on the ambient temperature, the first pouring temperature, the second pouring temperature, and the third pouring temperature. The cooling module is used to regulate the temperature of the concrete dam body through a cold water pipe system based on the cooling time after the pouring period is completed.

[0075] As an optional implementation method, a casting module is used specifically for: The first constraint condition or the second constraint condition is determined based on the ambient temperature, the first entry temperature, the second entry temperature, and the third entry temperature. The first constraint condition includes: the first entry temperature is not less than the first preset constraint temperature, or the second entry temperature is not less than the second preset constraint temperature, or the third entry temperature is not less than the third preset constraint temperature; the first preset constraint temperature is not greater than the second preset constraint temperature; and the second preset constraint temperature is less than the third preset constraint temperature. The second constraint condition includes: the temperature difference between the inside and outside of the casting chamber is not less than the fourth constraint temperature, and the maximum temperature inside the casting chamber is greater than the fifth preset constraint temperature. If the first constraint condition or the second constraint condition is met, a first temperature adjustment command is sent to the raw material precooling device. The first temperature adjustment command is used to instruct the raw material precooling device to be turned on until the temperature of the casting material reaches the preset target temperature.

[0076] As an optional implementation, a cooling module is specifically used for: After the pouring period is completed, a first control command is sent to the cold water pipe system. The first control command is used to: indicate that the target temperature of the constant temperature water tank is a first preset temperature range, and indicate that the target flow rate of the cold water pipe system is a first preset flow rate. During the second preset time period after the completion of the pouring period, a second control command is sent to the cold water pipe system. The second control command is used to: indicate that the target temperature of the constant temperature water tank is the second preset temperature range and the target flow rate of the cold water pipe system is the second preset flow rate. After the pouring period is completed, a third control command is sent to the cold water pipe system. The third control command is used to indicate that the target temperature of the constant temperature water tank is within the third preset temperature range and the target flow rate of the cold water pipe system is within the third preset flow rate. Among them, the first preset time period is earlier than the second preset time period, which is earlier than the third preset time period; the first preset temperature range is not greater than the second preset temperature range, which is not greater than the third preset temperature range; and the first preset flow rate is greater than the second preset flow rate, which is greater than the third preset flow rate.

[0077] As an optional implementation method, a casting module is used specifically for: If the ambient temperature is not lower than the fifth preset constraint temperature, the pouring mode is determined to be the high temperature mode. If the ambient temperature is not greater than the sixth preset constraint temperature, the pouring mode is determined to be the low temperature mode; wherein, the fifth preset constraint temperature is greater than the sixth preset constraint temperature. As an optional implementation method, the casting module is also used for: If the pouring mode is low temperature mode, the inlet temperature is obtained. When the inlet temperature is lower than the seventh preset constraint temperature, a heat preservation command is sent to the surface heat preservation device. The heat preservation command is used to instruct the surface heat preservation device to keep the pouring chamber warm.

[0078] As an optional implementation, a cooling module is specifically used for: The flow monitoring device determines whether the water pipe flow rate is lower than the first preset flow rate. If the water flow rate is lower than the first preset flow rate, a first backwash command is sent to the backwash device. The first backwash command is used to instruct the backwash device to start. If the water flow rate is not lower than the first preset flow rate, the water quality monitoring device determines whether the water quality conditions are met. If the water quality conditions are not met, a second backwash command is sent to the backwashing device. The second backwash command is used to instruct the backwashing device to start at the first preset cycle. If the water quality conditions are met, a third backwash command is sent to the backwashing device. The third backwash command is used to instruct the backwashing device to start at a second preset cycle; wherein the first preset cycle is shorter than the second preset cycle.

[0079] As an optional implementation method, the casting module is also used for: In high-temperature mode, a command to stop pouring is sent during the preset high-temperature period, and a command to start pouring is sent outside the preset high-temperature period.

[0080] Based on the same inventive concept, this application also provides a temperature control system for concrete dam casting to implement the temperature control method for concrete dam casting described above. This system includes temperature control equipment for concrete dam casting, an inlet temperature sensor, a distributed temperature sensor, an ambient temperature sensor, a chilled water pipe system, and a raw material precooling device. The temperature control system based on concrete dam casting has been described in detail above and will not be repeated here; the temperature control equipment based on concrete dam casting has also been described in detail above and will not be repeated here.

[0081] In one exemplary embodiment, a computer device is provided, which may be a server or a terminal, and its internal structure diagram may be as follows. Figure 9 As shown, this computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores data. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communicating with external terminals via a network. When executed by the processor, the computer program implements a temperature control method based on concrete dam pouring.

[0082] Those skilled in the art will understand that Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0083] In one exemplary embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0084] In one exemplary embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0085] In one exemplary embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0086] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0087] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

[0088] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0089] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. In summary, the content of this specification should not be construed as a limitation of this application.

Claims

1. A temperature control method based on concrete dam casting, characterized in that, A temperature control system for concrete dam casting, the temperature control system for concrete dam casting includes a cold water pipe system and a raw material precooling device; in The concrete dam casting block is pre-defined with strongly constrained areas, weakly constrained areas, and unconstrained areas. The cold water pipe system includes cold water pipes, which include main pipes and expandable branch pipes. The main pipes are all arranged in the same direction, and the expandable branch pipes are connected to the main pipes in a network. The main pipes can be connected to each other through expandable branch pipes. The expansion length of the expandable branch pipes changes the spacing between adjacent main pipes. The spacing includes a first preset interval, a second preset interval, and a third preset interval. The cold water pipes are laid in the strongly constrained areas with the first preset interval, in the weakly constrained areas with the second preset interval, and in the unconstrained areas with the third preset interval. The first preset interval is not greater than the second preset interval, and the second preset interval is not greater than the third preset interval. The raw material precooling device is used to regulate the temperature of the casting material; The temperature control method based on concrete dam casting includes: During the pouring process, the ambient temperature is acquired, and the pouring mode is determined based on the ambient temperature. If the ambient temperature is not less than the fifth preset constraint temperature, the pouring mode is determined to be a high-temperature mode. In the high-temperature mode, the first pouring temperature when pouring the strongly constrained area, the second pouring temperature when pouring the weakly constrained area, and the third pouring temperature when pouring the unconstrained area are obtained. The first constraint condition or the second constraint condition is determined based on the ambient temperature, the first entry temperature, the second entry temperature, and the third entry temperature. The first constraint condition includes: the first entry temperature is not less than a first preset constraint temperature, or the second entry temperature is not less than a second preset constraint temperature, or the third entry temperature is not less than a third preset constraint temperature; the first preset constraint temperature is not greater than the second preset constraint temperature, and the second preset constraint temperature is less than the third preset constraint temperature. The second constraint condition includes: the temperature difference between the inside and outside of the casting chamber is not less than a fourth constraint temperature, and the maximum temperature inside the casting chamber is greater than a fifth preset constraint temperature. If the first constraint condition or the second constraint condition is met, a first temperature adjustment command is sent to the raw material precooling device. The first temperature adjustment command is used to instruct the raw material precooling device to be turned on until the temperature of the casting material reaches the preset target temperature. After the pouring period is completed, the temperature of the concrete dam body is adjusted through the cold water pipe system based on the cooling time. After the pouring period is completed, a first control command is sent to the cold water pipe system. The first control command is used to: indicate that the target temperature of the constant temperature water tank is a first preset temperature range, and indicate that the target flow rate of the cold water pipe system is a first preset flow rate. During the second preset time period after the completion of the pouring period, a second control command is sent to the cold water pipe system. The second control command is used to: indicate that the target temperature of the constant temperature water tank is a second preset temperature range and the target flow rate of the cold water pipe system is a second preset flow rate. During the third preset time period after the completion of the pouring period, a third control command is sent to the cold water pipe system. The third control command is used to indicate that the target temperature of the constant temperature water tank is the third preset temperature range and the target flow rate of the cold water pipe system is the third preset flow rate. Wherein, the first preset time period is earlier than the second preset time period, which is earlier than the third preset time period; the first preset temperature range is not greater than the second preset temperature range, which is not greater than the third preset temperature range; and the first preset flow rate is greater than the second preset flow rate, which is greater than the third preset flow rate.

2. The temperature control method based on concrete dam casting according to claim 1, characterized in that, The temperature control device also includes a surface insulation device, and the step of determining the pouring mode based on the ambient temperature includes: If the ambient temperature is not greater than the sixth preset constraint temperature, the pouring mode is determined to be a low-temperature mode; wherein, the fifth preset constraint temperature is greater than the sixth preset constraint temperature; The temperature control method based on concrete dam casting also includes: If the pouring mode is the low-temperature mode, the inlet temperature is obtained. When the inlet temperature is less than the seventh preset constraint temperature, a heat preservation command is sent to the surface heat preservation device. The heat preservation command is used to instruct the surface heat preservation device to heat the pouring chamber.

3. The temperature control method based on concrete dam casting according to claim 1, characterized in that, The cold water pipe system also includes a water quality monitoring device, a flow monitoring device, and a backwashing device; the temperature control method based on concrete dam pouring also includes: Based on the flow monitoring device, it is determined whether the water pipe flow rate is lower than the first preset flow rate; If the water flow rate is lower than the first preset flow rate, a first backwash command is sent to the backwash device. The first backwash command is used to instruct the backwash device to be started. If the water flow rate is not lower than the first preset flow rate, the water quality monitoring device determines whether the water quality conditions are met. If the water quality conditions are not met, a second backwash command is sent to the backwashing device. The second backwash command is used to instruct the backwashing device to be started at a first preset cycle. If the water quality conditions are met, a third backwash command is sent to the backwashing device. The third backwash command is used to instruct the backwashing device to start at a second preset cycle; wherein the first preset cycle is shorter than the second preset cycle.

4. The temperature control method based on concrete dam casting according to claim 1, characterized in that, In the high-temperature mode, the temperature control method based on concrete dam pouring further includes: sending an instruction to stop pouring during a preset high-temperature period, and sending an instruction to start pouring outside the preset high-temperature period.

5. A temperature control system based on concrete dam casting, characterized in that, The temperature control system based on concrete dam casting includes temperature control equipment based on concrete dam casting, inlet temperature sensor, distributed temperature sensor, ambient temperature sensor, cold water pipe system and raw material precooling device. in The concrete dam casting block is pre-defined with strongly constrained areas, weakly constrained areas, and unconstrained areas. The cold water pipe system includes cold water pipes, which include main pipes and expandable branch pipes. The main pipes are all arranged in the same direction, and the expandable branch pipes are connected to the main pipes in a network. The main pipes can be connected to each other through expandable branch pipes. The expansion length of the expandable branch pipes changes the spacing between adjacent main pipes. The spacing includes a first preset interval, a second preset interval, and a third preset interval. The cold water pipes are laid in the strongly constrained areas with the first preset interval, in the weakly constrained areas with the second preset interval, and in the unconstrained areas with the third preset interval. The first preset interval is not greater than the second preset interval, and the second preset interval is not greater than the third preset interval. The inlet temperature sensor is used to collect the temperature of the casting material when it is put into the silo; The ambient temperature sensor is used to collect ambient temperature data. The distributed temperature sensors are deployed in strongly constrained areas, weakly constrained areas, and unconstrained areas, respectively, to collect the regional temperature within the strongly constrained areas, weakly constrained areas, and unconstrained areas. The raw material precooling device is used to regulate the temperature of the casting material; The temperature control device based on concrete dam casting is used to implement the steps of the temperature control method based on concrete dam casting as described in any one of claims 1-4.

6. A computer device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor executes the computer program to implement the steps of the temperature control method based on concrete dam pouring as described in any one of claims 1-4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the temperature control method based on concrete dam pouring as described in any one of claims 1-4.

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