Quality control method for mass concrete in mountainous area

Abstract

The invention relates to the technical field of concrete construction, and particularly discloses a mountainous area mass concrete quality control method, which comprises the following steps: obtaining the inlet and outlet water temperature of U-shaped areas, obtaining the average temperature of each U-shaped area through a temperature model, dividing the U-shaped areas into a high-temperature area and a low-temperature area, and controlling alternate water inlet and alternate water inlet period through a temperature control strategy. Analyzing the average temperature reduction trend to access a rapid water inlet pipe; establishing a model by using a pouring temperature control strategy of a historical concrete layer; and guiding the pouring temperature control of a subsequent concrete layer by using the model. According to the scheme, various problems caused by the temperature of water for concrete mixing during existing concrete construction and cooling water in concrete pouring due to manual operation are solved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete construction, and in particular to a quality control method for large-volume concrete in mountainous areas. Background Art

[0002] The cap of the Canyon Bridge is a large-volume concrete cap with a rectangular shape. The size of a single cap is 21.8m×29.6m and the height is 8m. The cap is cast with C45 concrete. 3 , with a large volume. Since the cap is a large volume of concrete, effective measures must be taken to prevent cracks caused by temperature stress, concrete shrinkage, etc. In order to control the hydration heat generated by concrete pouring, the concrete temperature must be controlled. During the curing process, the hydration heat causes the concrete temperature to rise by 25°C, resulting in an increase in the concrete volume. After curing, the concrete temperature drops and the volume decreases. This process in which the temperature difference between the inside and outside exceeds 25°C usually causes cracks in the concrete, affecting the safe use of the structure and prolonging the construction period. Therefore, the initial pouring temperature of the concrete should control the corresponding concrete outlet temperature according to different concrete grades to ensure that the maximum temperature of the concrete during the curing period does not exceed the specified temperature of the design unit.

[0003] At present, during the construction of large-volume concrete structures, the concrete cooling water flow regulation method and the concrete mixing water temperature are usually manually operated to change the water flow and reach the specified value. However, due to factors such as changes in the water pressure of the water supply system, the cooling water flow may deviate from the set value, thereby having an adverse effect on the cooling of the concrete structure. In addition, there are many uncertainties in manual control, and there may be problems such as flow control errors, untimely control, and inability to adjust at any time according to changes in concrete temperature. In addition, since the existing temperature monitoring sensors are usually buried in concrete and solidify into one with the concrete during pouring, once the temperature sensor fails, it will be impossible to maintain or replace it, resulting in a greater risk. Summary of the invention

[0004] The invention provides a quality control method for mass concrete in mountainous areas to solve various problems in which the temperature of concrete mixing water during existing concrete construction and the cooling water during concrete pouring are difficult to control due to manual operation.

[0005] To solve the above purpose, the technical solution adopted by the present invention is as follows: a quality control method for mass concrete in mountainous areas, wherein multiple layers of cooling water pipes are buried in the mass concrete, and the cooling water pipes are divided into a plurality of U-shaped areas, characterized in that the two ends of the plurality of U-shaped areas are connected to the water inlet pipe through a three-way valve to form a parallel relationship, and the U-shaped areas can be connected in series to form a continuous U-shaped bend pipe or the U-shaped area can be short-circuited by switching the three-way valve, and the temperature of the mass concrete in mountainous areas is controlled by the following steps:

[0006] S100, obtaining the water inlet temperature and water outlet temperature of each U-shaped zone;

[0007] S200, obtaining the average temperature of each U-shaped zone through a temperature model according to the temperature difference between the inlet water temperature and the outlet water temperature;

[0008] S300, if there is a U-shaped area with an average temperature higher than the preset temperature, the U-shaped area is defined as a high temperature area, and other U-shaped areas on the cooling water pipe are defined as low temperature areas, and the U-shaped areas on the cooling water pipe are alternately filled with water as high temperature areas and low temperature areas by controlling the three-way valve to short-circuit or connect the U-shaped areas in series;

[0009] S400, planning an alternating water inlet cycle according to the difference between the average temperature of the high temperature zone and the average temperature of the low temperature zone and the water flow velocity.

[0010] Further, the water inlet pipe includes a fast water inlet pipe and a slow water inlet pipe, and further includes step S500,

[0011] S500, analyzing the downward trend of the average temperature of each U-shaped area in the high temperature area, if the downward trend is slower than the preset trend, connecting the corresponding U-shaped area to the fast water inlet pipe.

[0012] Furthermore, after S500, step S600 is also included.

[0013] S600, storing the historical temperature data and the temperature control strategy formed through steps S100 to S500 and establishing a temperature control strategy model, dividing the concrete into multiple layers from bottom to top according to the number of cooling water pipe layers, and pouring the concrete layer by layer from bottom to top, and presetting the temperature control strategy according to the temperature control strategy model when pouring the upper layer of concrete.

[0014] Furthermore, in S100, the laying method and number of cooling water pipes are as follows: the number of cooling water pipes in each layer is 4, and each cooling water pipe is distributed in a serpentine shape.

[0015] Further, steps S100 to S600 are a quality control method for a mass concrete curing process. The quality control method for a mass concrete curing process also includes a quality control method for a mass concrete mixing process before step S100. The quality control method for a mass concrete mixing process includes the following steps:

[0016] S001. Install sensors in the water tank of the concrete mixing station and embed concrete sensors in the concrete in the mixing tank;

[0017] S002: Real-time acquisition of water temperature of the concrete mixing station water tank and real-time acquisition of mixed concrete temperature;

[0018] S003, determining the relationship between the water tank temperature and the preset temperature range of the water temperature in the control strategy, and when the water tank temperature is higher than the preset temperature range, controlling the cooling device to put ice flakes into the water tank;

[0019] When the water tank temperature is lower than a preset temperature range, the heating device is controlled to heat the stirring water in the water tank.

[0020] Furthermore, the angles between the cooling water pipes in adjacent layers differ by 90 degrees.

[0021] Furthermore, after S003, step S004 is also included:

[0022] S004. When the water temperature or water volume in the water tank exceeds a preset range, an alarm signal is issued.

[0023] The basic principle of this scheme is: cooling water pipes and concrete sensors are embedded in each layer of concrete. The average temperature is obtained according to the temperature difference between the inlet and outlet water temperatures of each U-shaped zone and the temperature model. The average temperature is compared with the preset temperature range, and each U-shaped pipe area is divided into a high-temperature zone and a low-temperature zone. The inlet temperature and water flow of each U-shaped zone are controlled by alternately inletting water into the high-temperature zone and the low-temperature zone, changing the alternating water inlet cycle, switching the water inlet pipe and other control strategies until the concrete temperature reaches the preset range of the concrete temperature. During the pouring and curing of the entire layer of concrete, the alternating water inlet mode, alternating water inlet cycle, and selection of the water inlet pipe of each U-shaped zone form a temperature control strategy. The temperature control strategy of this layer of concrete is used to form a temperature control model. When pouring the next layer, it can be preset as the temperature control strategy of the next layer. At the same time, the data of the inlet temperature, outlet temperature, water flow rate, and concrete temperature of each cooling water pipe are obtained through the temperature model. The data is fitted to obtain the temperature regulation relationship between the inlet temperature, outlet temperature, water flow rate, and concrete temperature of each layer of cooling water pipes. According to the temperature regulation relationship and the actual inlet temperature, outlet temperature, and water flow rate of each layer of cooling water pipes, the predicted temperature of the concrete and the average temperature of each U-shaped zone under the input conditions of the inlet temperature, outlet temperature, and water flow rate are predicted. The predicted temperature of the concrete and the average temperature of the U-shaped zone are compared with the preset concrete temperature range. The corresponding temperature control strategy is adjusted to make the temperature of the concrete reach the preset temperature, and guidance is provided for the temperature control of the concrete pouring of the next layer.

[0024] The beneficial effects of this scheme are as follows: the concrete temperature regulation relationship is obtained by fitting the real-time data obtained in the production process, and the inlet temperature, outlet temperature, flow rate and other parameters of the concrete cooling water in different U-shaped zones are controlled according to the temperature regulation relationship and the preset temperature range, so as to achieve quality control of the concrete mixing machine, concrete pouring temperature and other processes, ensure the pouring quality of large-volume concrete in mountainous areas, and avoid the risks caused by various uncertain factors such as temperature sensor failure and manual control. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural block diagram of an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of an embodiment of the present invention;

[0027] Figure 3 for Figure 2 A partial enlarged schematic diagram of . DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods:

[0029] The figure marks in the drawings of the specification include: cooling water pipe 1, first water inlet pipe 21, second water inlet pipe 22, first solenoid valve 31, second solenoid valve 32, main pipe three-way valve 4, water change three-way valve 5, pouring concrete 6, temperature sensor 7, water inlet temperature sensor 71, water outlet temperature sensor 72.

[0030] The embodiment is basically as shown in the attached Figures 1 to 3 As shown:

[0031] The large volume concrete in this example is the bridge cap, which is arranged in a rectangular shape. The size of a single cap is 21.8m×29.6m, and the height is 8m. The cap is cast with C45 concrete. 3 The cap is a large volume of concrete. This embodiment takes effective measures to prevent cracks caused by temperature stress, concrete shrinkage, etc., and improves the concrete quality control technology in terms of temperature control and other aspects.

[0032] Quality control methods for mass concrete in mountainous areas.

[0033] There are multiple layers of cooling water pipes buried in the mass concrete. The cooling water pipes are divided into several U-shaped areas. The two ends of the U-shaped areas are connected to the water inlet pipes through three-way valves to form a parallel relationship. By switching the three-way valve, the U-shaped areas can be connected in series to form a continuous U-shaped bend or the U-shaped area can be short-circuited. The angles between the cooling water pipes of each adjacent layer differ by 90 degrees. The temperature of mass concrete in mountainous areas is controlled by the following steps:

[0034] S100, obtaining the water inlet temperature and water outlet temperature of each U-shaped zone;

[0035] S200, obtaining the average temperature of each U-shaped zone through a temperature model according to the temperature difference between the inlet water temperature and the outlet water temperature;

[0036] Specifically, the temperature model used in the temperature control strategy step is to obtain the temperature regulation relationship between the inlet temperature, water flow rate, outlet temperature and concrete temperature of each layer of cooling water pipes of the concrete according to the obtained inlet temperature, water flow rate, outlet temperature of each layer of cooling water pipes, and concrete temperature, and obtain the predicted concrete temperature (the average temperature of each U-shaped zone) according to the temperature regulation relationship, the inlet temperature, water flow rate and outlet temperature of each layer of cooling water pipes, compare the predicted concrete temperature with the preset range of concrete temperature, and control and adjust at least one inlet and outlet parameter according to the temperature control strategy until the concrete temperature reaches the preset range of concrete temperature;

[0037] S300, if there is a U-shaped area with an average temperature higher than the preset temperature, the U-shaped area is defined as a high temperature area, and other U-shaped areas on the cooling water pipe are defined as low temperature areas, and the U-shaped areas on the cooling water pipe are alternately filled with water as high temperature areas and low temperature areas by controlling the three-way valve to short-circuit or connect the U-shaped areas in series;

[0038] S400, planning the alternating water inlet cycle according to the difference between the average temperature of the high temperature zone and the average temperature of the low temperature zone and the water flow rate. The water inlet pipe includes a fast water inlet pipe and a slow water inlet pipe, and also includes step S500,

[0039] S500, analyzing the downward trend of the average temperature of each U-shaped area in the high temperature area, if the downward trend is slower than the preset trend, the corresponding U-shaped area is connected to the fast water inlet pipe. In this way, cooling water with a lower temperature is pumped into each U-shaped area in the high temperature area through the fast water inlet pipe to ensure that the heat of the concrete can be exchanged out in a faster manner.

[0040] S500 also includes step S600,

[0041] S600, storing historical temperature data and temperature control strategies and establishing a temperature control strategy model, dividing concrete into multiple layers from bottom to top according to the number of cooling water pipe layers, and pouring concrete layer by layer from bottom to top, and presetting the temperature control strategy according to the temperature control strategy model when pouring the upper layer of concrete.

[0042] Specifically, when pouring different numbers of layers of concrete, after pouring one layer of concrete and completing temperature control, the corresponding temperature control strategy model can be obtained according to the alternating water inlet method, alternating water inlet cycle, rapid water switching method and other steps in the historical pouring process. When pouring a new layer of concrete, it can be determined whether the control strategy model formulated according to historical data in S600 needs to be revised based on the real-time obtained cooling water pipe inlet temperature, cooling water pipe outlet temperature, and water flow rate. If so, the cooling water temperature of the concrete is controlled according to the corrected cooling water temperature control strategy of steps S100 to S500 until the concrete quality control meets the standards; if not, the cooling water temperature of the concrete is continued to be controlled according to the control strategy formulated in S600 until the quality control of the concrete layer meets the standards.

[0043] Steps S100 to S600 are a quality control method for a mass concrete curing process. The quality control method for a mass concrete curing process also includes a quality control method for a mass concrete mixing process before step S100. The quality control method for a mass concrete mixing process includes the following steps:

[0044] S001. Install sensors in the water tank of the concrete mixing station and embed concrete sensors in the concrete in the mixing tank;

[0045] S002: Real-time acquisition of water temperature of the concrete mixing station water tank and real-time acquisition of mixed concrete temperature;

[0046] S003, determining the relationship between the water tank temperature and the preset temperature range of the water temperature in the control strategy, and when the water tank temperature is higher than the preset temperature range, controlling the cooling device to put ice flakes into the water tank;

[0047] When the water tank temperature is lower than a preset temperature range, the heating device is controlled to heat the stirring water in the water tank.

[0048] Step S003 also includes step S004:

[0049] S004. When the water temperature or water volume in the water tank exceeds a preset range, an alarm signal is issued.

[0050] Specifically, the temperature model can determine the relationship between the water tank temperature and the preset temperature range of the water temperature in the control strategy. When the water tank temperature is higher than the preset temperature range, the cooling device is controlled to put ice flakes into the water tank; when the water tank temperature is lower than the preset temperature range, the heating device is controlled to heat the stirring water in the water tank. It also includes that when the water temperature or water volume in the water tank exceeds the preset range, an alarm signal is issued.

[0051] The alternating water inlet specifically refers to controlling the inlet and outlet directions of the cooling water pipes on each layer according to the inlet and outlet temperature difference of the cooling water pipes on each layer and the concrete temperature; when the inlet and outlet temperature difference exceeds a preset range, the inlet and outlet water combination is changed. Specifically, when the inlet and outlet temperature difference is greater than 25°C, the water flow direction in the cooling water pipe is reversed, that is, the functions of the inlet and outlet are opposite. The inlet and outlet water combination is changed as follows: in this embodiment, under normal circumstances, 4 cooling water pipes are connected in series on each layer; however, if the predicted temperature of the last pipe is high, this pipe is separated out and supplied with water alternately with the previous three pipes;

[0052] If the predicted temperatures of the two rear pipes are both high, the front two pipes and the rear two pipes are supplied with water alternately;

[0053] If the predicted temperatures of the three pipes at the rear are all high, the front pipe and the three pipes at the rear will be supplied with water alternately;

[0054] If alternating water supply cannot solve the problem of high predicted temperature, use fast water for replacement. Fast water replacement requires the use of corresponding control devices on the cooling water pipe, such as Figure 2 , 3 As shown, the control device includes a controller, a first water inlet pipe, a second water inlet pipe, a main water three-way valve, a water exchange three-way valve, a first solenoid valve, and a second solenoid valve.

[0055] In this embodiment, the number of cooling water pipes 1 in each layer is 4, and each cooling water pipe 1 is in the shape of a "J", and the entire layer of cooling water pipes 1 is distributed in a serpentine shape. The water inlet and outlet of each cooling water pipe 1 extend to the outside of the poured concrete 6 and are respectively installed with temperature sensors 7. A first water inlet pipe 21 and a second water inlet pipe 22 are installed on the outside of a layer of cooling water pipes 1. The first solenoid valve 31 and the second solenoid valve 32 are respectively installed at the head ends of the first water inlet pipe 21 and the second water inlet pipe 22. The water inlet and outlet of each cooling water pipe 1 are connected to the first water inlet pipe 21 and are connected to the first water inlet pipe 21 through the main three-way valve 4. A water changing three-way valve 5 is installed between each temperature sensor 7 and each main three-way valve 4, and the water changing three-way valve 5 is respectively connected to the external second water inlet pipe 22.

[0056] The water flow rates transported in the first water inlet pipe 21 and the second water inlet pipe 22 are different, wherein the flow rate in the first water inlet pipe 21 is slow, and the flow rate in the second water inlet pipe 22 is fast. The first solenoid valve 31, the second solenoid valve 32, the main three-way valve 4, the water exchange three-way valve 5, and the temperature sensor 7 are all electrically connected to the external controller. In this embodiment, multiple layers of cooling water pipes 1 are arranged in the concrete according to the height, and the angles between adjacent layers of cooling water pipes 1 differ by 90 degrees. Thus, the cooling water pipes 1 between different layers can be cross-distributed, so that the temperature control in the concrete is more uniform.

[0057] The specific implementation process is as follows:

[0058] like Figure 3As shown, the three ports on the main three-way valve 4 are marked as d, e, and f, respectively, and the three ports on the water exchange three-way valve 5 are marked as a, b, and c, respectively. In normal use, the temperature difference between the inlet and outlet of each cooling water pipe is less than 25°C. The inlet temperature and outlet temperature of each cooling water pipe can be obtained according to the inlet temperature sensor and outlet temperature sensor of each cooling water pipe, so that the predicted temperature of the concrete is kept within the preset temperature range. In this process, it is not necessary to adjust the parameters of the water inlet and outlet. The water flow in the second solenoid valve does not enter the cooling water pipe. The water exchange three-way valve 5 on the second water inlet pipe 22 is a and b connected, and c is cut off. Circulating water is introduced into the cooling water pipe 1, and the first solenoid valve 31 is opened. The circulating water flows from left to right along the first water inlet pipe 21. When passing through the main three-way valve 4 on the water inlet of the first cooling water pipe 1, e and d are connected, and f is cut off. After the first solenoid valve is opened, the circulating water enters the first cooling water pipe 1 along the ed path, flows along the first cooling water pipe 1 to the main three-way valve at the outlet of the first cooling water pipe. The main three-way valve is d and f connected, and e is cut off. The circulating water flows out of the first cooling water pipe 1 along the eddf path, and the inlet temperature and outlet temperature of the cooling water pipe 1 are respectively obtained through the inlet temperature sensor 71 and the outlet temperature sensor 72 of the first cooling water pipe 1. In this way, the inlet temperature and outlet temperature of all cooling water pipes 1 in a layer can be obtained.

[0059] As heat exchange continues, when the concrete temperature monitoring module detects that the concrete temperature exceeds the preset temperature or the temperature difference between the inlet and outlet of the cooling water pipe exceeds the preset range, it means that the heat exchange efficiency of the circulating water in the cooling water pipe needs to be improved. First, the alternating water supply inlet and outlet water method is adopted. If the alternating water supply cannot reach the preset temperature range, the rapid replacement water inlet and outlet water method is adopted.

[0060] The specific alternating water supply method is: in this embodiment, under normal circumstances, four pipes are connected in series; however, if the inlet and outlet water temperatures of the last cooling water pipe are high, this pipe is separated out and supplied with water alternately with the previous three pipes; that is, the first solenoid valve is always open, but the last cooling water pipe does not receive circulating water at the same time as the previous three pipes. First, the first three pipes are supplied with water according to the eddf path respectively, and the last pipe efef is not supplied with water. Then, the first three pipes are not supplied with water according to the efef path, and the last pipe is directly supplied with water through the eddf method.

[0061] If the inlet and outlet water temperatures of the two rear pipes are both high, the front two pipes and the rear two pipes will supply water alternately;

[0062] If the inlet and outlet water temperatures of the three rear pipes are all high, the front pipe and the three rear pipes will supply water alternately;

[0063] If alternating water supply cannot solve the problem of predicted high temperature, use fast water for replacement.

[0064] Specifically, the fast water replacement method connected to the fast water inlet pipe in S500 is: by replacing the circulating water in the cooling water pipe, the cooling water pipe is filled with circulating water at a lower temperature so that the concrete temperature reaches the preset range of the concrete temperature. Specifically, when the pouring temperature control module obtains that the temperature of a cooling water pipe 1 is higher than the predicted temperature of the concrete, the water flow in the cooling water pipe needs to be replaced. In addition, due to the gradual heat exchange of the circulating water in the cooling water pipes from left to right, the circulating water temperature in the cooling water pipe on the left is low, and the circulating water temperature increases as it goes to the right; at this time, the first cooling water pipe with a temperature higher than the predicted temperature of the concrete is used as the grouping starting point, and it is grouped with all the cooling water pipes on its right side into a group (high temperature zone), and the circulating water of this group of cooling water pipes is replaced at the same time, and all the cooling water pipes in front of the high temperature zone are grouped into a group, which is the low temperature zone.

[0065] For example, in this scheme, the number of cooling water pipes on one layer is 4. If the outlet temperature of the first cooling water pipe is higher than the predicted temperature, the four cooling water pipes are grouped as a group and the water is changed through the second solenoid valve at the same time; if the outlet temperature of the second cooling water pipe is higher than the predicted temperature, the second, third and fourth cooling water pipes are grouped as a group (high temperature zone) and the water is changed at the same time, and the first cooling water pipe is grouped as a group (low temperature zone), and the two groups are alternately supplied with water; and so on, if the outlet temperature of the third cooling water pipe is higher than the predicted temperature, the third and fourth cooling water pipes are grouped as a group and the water is changed at the same time; if the outlet temperature of the fourth cooling water pipe is higher than the predicted temperature, the water is changed for the fourth cooling water pipe alone.

[0066] The water changing step is to open the second solenoid valve 32, and turn on e and f on all the main three-way valves 4 in a group of cooling water pipes 1 that need water changing, and cut off d. The circulating water of the cooling water pipes that do not need water changing still flows along the eddf path to the subsequent cooling water pipes 1. When the water flows to a group of cooling water pipes that need water changing, the water flows along the efef path, and the water changing three-way valve on the water inlet of the first cooling water pipe in the group is switched to a and c are turned on, b is cut off, and the water changing three-way valve on the water outlet is switched to c and b are turned on, a is cut off, so that the circulating water with a fast flow rate in the second water inlet can quickly enter the cooling water pipe 1 for replacement. Therefore, this solution can switch the states of the water changing three-way valve 5, the main three-way valve 4, the first and second solenoid valves 32 through the controller to ensure that the cooling water pipes 1 of each layer can maintain balanced inlet and outlet water temperatures. At the same time, when the temperature sensor 7 fails, because the temperature sensor 7 is installed outside the concrete, it will not affect the maintenance and replacement work, ensuring that the temperature monitoring work of the concrete can be carried out smoothly.

[0067] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. The quality control method of mass concrete in mountainous areas is characterized by: Multiple layers of cooling water pipes are buried in the mass concrete, which are divided into several U-shaped areas. The characteristics are that the two ends of several U-shaped areas are connected to the water inlet pipe through a three-way valve to form a parallel relationship. By switching the three-way valve, each U-shaped area can be connected in series to form a continuous U-shaped bend or the U-shaped area can be short-circuited. The temperature of mass concrete in mountainous areas is controlled by the following steps: S100, obtaining the water inlet temperature and water outlet temperature of each U-shaped zone; S200, obtaining the average temperature of each U-shaped zone through a temperature model according to the temperature difference between the inlet water temperature and the outlet water temperature; S300, if there is a U-shaped area with an average temperature higher than the preset temperature, the U-shaped area is defined as a high temperature area, and other U-shaped areas on the cooling water pipe are defined as low temperature areas, and the U-shaped areas on the cooling water pipe are alternately filled with water as high temperature areas and low temperature areas by controlling the three-way valve to short-circuit or connect the U-shaped areas in series; S400, planning an alternating water inlet cycle according to the difference between the average temperature of the high temperature zone and the average temperature of the low temperature zone and the water flow velocity.

2. The quality control method for mass concrete in mountainous areas according to claim 1 is characterized in that: The water inlet pipe includes a fast water inlet pipe and a slow water inlet pipe, and further includes step S500, S500, analyzing the downward trend of the average temperature of each U-shaped area in the high temperature area, if the downward trend is slower than the preset trend, connecting the corresponding U-shaped area to the fast water inlet pipe.

3. The quality control method for mass concrete in mountainous areas according to claim 2 is characterized in that: The step S500 further includes step S600, S600, storing the historical temperature data and the temperature control strategy formed through steps S100 to S500 and establishing a temperature control strategy model, dividing the concrete into multiple layers from bottom to top according to the number of cooling water pipe layers, and pouring the concrete layer by layer from bottom to top, and presetting the temperature control strategy according to the temperature control strategy model when pouring the upper layer of concrete.

4. The quality control method for mass concrete in mountainous areas according to claim 3 is characterized in that: The steps S100 to S600 are a quality control method for a mass concrete curing process. The quality control method for a mass concrete curing process also includes a quality control method for a mass concrete mixing process before step S100. The quality control method for a mass concrete mixing process includes the following steps: S001. Install sensors in the water tank of the concrete mixing station and embed concrete sensors in the concrete in the mixing tank; S002: Real-time acquisition of water temperature of the concrete mixing station water tank and real-time acquisition of mixed concrete temperature; S003, determining the relationship between the water tank temperature and the preset temperature range of the water temperature in the control strategy, and when the water tank temperature is higher than the preset temperature range, controlling the cooling device to put ice flakes into the water tank; When the water tank temperature is lower than a preset temperature range, the heating device is controlled to heat the stirring water in the water tank.

5. The quality control method for mass concrete in mountainous areas according to claim 4 is characterized in that: The angles between the cooling water pipes in adjacent layers differ by 90 degrees.

6. The quality control method for mass concrete in mountainous areas according to claim 5 is characterized in that: After S003, step S004 is also included: S004. When the water temperature or water volume in the water tank exceeds a preset range, an alarm signal is issued.

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