A method and system for controlling cracks in large-volume concrete

Abstract

The present invention discloses a method and system for controlling cracks in large-volume concrete, wherein the method comprises: obtaining dimensional information of the large-volume concrete; determining the distribution position of heat dissipation steel pipes corresponding to the large-volume concrete based on the dimensional information of the large-volume concrete and a preset construction method; placing the heat dissipation steel pipes at the distribution position corresponding to the large-volume concrete, and connecting cooling water to cool the interior of the large-volume concrete. The present invention uses a preset pressure sensor to obtain the pressure value of the heat dissipation steel pipe in real time, thereby improving the bond strength between the large-volume concrete and the heat dissipation steel pipe; then, using a preset temperature sensor to obtain the temperature value of the cooling water, the internal temperature value of the large-volume concrete, and the surface temperature value in real time, thereby improving the heat dissipation accuracy of the large-volume concrete, thereby controlling the deformation of the large-volume concrete during the heat dissipation process, and further effectively controlling cracks in the large-volume concrete.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete construction, and more particularly to a method and system for controlling cracks in large-volume concrete. Background Art

[0002] With the development of social economy, large-volume concrete structures are being used more and more. At present, the method of passing cooling water through steel pipes is mainly used in engineering applications to reduce the internal temperature of concrete. However, practice has shown that heat dissipation steel pipes are difficult to tightly bond with concrete, which easily causes defects and cracks. In addition, in order to ensure that the heat dissipation steel pipes do not deform during the pouring process, the thickness should meet certain requirements. However, increasing the thickness will have an adverse impact on material costs and project costs. In addition, the temperature and flow rate of the cooling water are difficult to control.

[0003] Therefore, the existing technology has defects and needs to be improved urgently. Summary of the Invention

[0004] In view of the above problems, the purpose of the present invention is to provide a method and system for controlling cracks in mass concrete, which can effectively control cracks in mass concrete through heat dissipation steel pipes.

[0005] A first aspect of the present invention provides a method for controlling cracks in mass concrete, comprising:

[0006] Obtain dimensional information of mass concrete;

[0007] According to the size information of the mass concrete and the preset construction method, the distribution position of the heat dissipation steel pipe corresponding to the mass concrete is obtained;

[0008] Place the heat dissipation steel pipe at the heat dissipation steel pipe distribution position corresponding to the mass concrete, and connect it with cooling water to cool the interior of the mass concrete.

[0009] In this solution, after obtaining the heat dissipation steel pipe distribution position corresponding to the mass concrete, the method further includes:

[0010] According to the distribution position of the heat dissipation steel pipes of the mass concrete, the predicted value of the pressure of the mass concrete on the heat dissipation steel pipes is obtained;

[0011] According to the predicted value of the pressure of the corresponding large volume concrete on the heat dissipation steel pipe, the preset heat dissipation steel pipe table is searched to obtain the thickness of the corresponding heat dissipation steel pipe;

[0012] Select the corresponding heat dissipation steel pipe model according to the thickness of the corresponding heat dissipation steel pipe.

[0013] In this solution, after placing the heat dissipation steel pipes at the heat dissipation steel pipe distribution positions corresponding to the mass concrete, the following steps are further included:

[0014] Based on the preset pressure sensor, the pressure value of the mass concrete on the heat dissipation steel pipe is obtained;

[0015] Determine whether the pressure value of the mass concrete on the heat dissipation steel pipe is within the preset pressure value range. If not, trigger a pressure warning message; if so, the mass concrete and the heat dissipation steel pipe are tightly wrapped, and a construction completion prompt message is obtained;

[0016] According to the construction completion prompt information, stop the vibration operation of the large volume concrete at the current location.

[0017] In this solution, if no, after the pressure warning information is triggered, specifically includes:

[0018] When the pressure of the large volume concrete on the heat dissipation steel pipe is lower than the preset pressure value range, the insufficient pressure warning message is triggered;

[0019] Continue vibrating the large volume of concrete at the current location according to the insufficient pressure warning information;

[0020] When the pressure of the massive concrete on the heat dissipation steel pipe exceeds the preset pressure range, an excessive pressure warning message is triggered;

[0021] According to the excessive pressure warning message, remove the heavy objects on the large volume of concrete at the current location.

[0022] This plan also includes:

[0023] Based on the preset temperature sensor, the internal temperature value of the mass concrete is obtained;

[0024] Determine whether the internal temperature of the mass concrete is greater than a preset first temperature threshold, and if so, trigger a temperature reduction prompt message; if not, obtain the surface temperature of the mass concrete;

[0025] Subtracting the surface temperature of the corresponding mass concrete from the internal temperature of the mass concrete to obtain a first temperature difference;

[0026] Determine whether the first temperature difference is greater than a preset first temperature difference threshold, and if so, trigger a temperature reduction prompt message; if not, the first temperature difference corresponding to the large volume concrete is normal;

[0027] According to the temperature drop prompt information, start the cooling water switch.

[0028] In this solution, the step of starting the cooling water switch according to the temperature drop prompt information specifically includes:

[0029] Dividing the first temperature difference of the mass concrete into preset temperature ranges to obtain temperature drop prompt level information corresponding to the first temperature difference of the mass concrete;

[0030] According to the temperature drop prompt level, query the preset cooling water switch level table to obtain the corresponding cooling water switch level;

[0031] The temperature drop prompt information includes corresponding temperature drop prompt level information.

[0032] This plan also includes:

[0033] Obtain the temperature value of the water inlet and outlet of the heat dissipation steel pipe;

[0034] Subtract the temperature value at the water inlet of the heat dissipation steel pipe from the temperature value at the water outlet of the heat dissipation steel pipe to obtain a second temperature difference;

[0035] determining whether the second temperature difference is greater than a preset second temperature difference threshold, and if so, generating temperature drop prompt level adjustment information;

[0036] Increase the cooling water switch by one level according to the temperature drop prompt level adjustment information.

[0037] A second aspect of the present invention provides a mass concrete crack control system, comprising a memory and a processor, wherein the memory stores a mass concrete crack control method program, and when the mass concrete crack control method program is executed by the processor, the following steps are implemented:

[0038] Obtain dimensional information of mass concrete;

[0039] According to the size information of the mass concrete and the preset construction method, the distribution position of the heat dissipation steel pipe corresponding to the mass concrete is obtained;

[0040] Place the heat dissipation steel pipe at the heat dissipation steel pipe distribution position corresponding to the mass concrete, and connect it with cooling water to cool the interior of the mass concrete.

[0041] In this solution, after obtaining the heat dissipation steel pipe distribution position corresponding to the mass concrete, the method further includes:

[0042] According to the distribution position of the heat dissipation steel pipes of the mass concrete, the predicted value of the pressure of the mass concrete on the heat dissipation steel pipes is obtained;

[0043] According to the predicted value of the pressure of the corresponding large volume concrete on the heat dissipation steel pipe, the preset heat dissipation steel pipe table is searched to obtain the thickness of the corresponding heat dissipation steel pipe;

[0044] Select the corresponding heat dissipation steel pipe model according to the thickness of the corresponding heat dissipation steel pipe.

[0045] In this solution, after placing the heat dissipation steel pipes at the heat dissipation steel pipe distribution positions corresponding to the mass concrete, the following steps are further included:

[0046] Based on the preset pressure sensor, the pressure value of the mass concrete on the heat dissipation steel pipe is obtained;

[0047] Determine whether the pressure value of the mass concrete on the heat dissipation steel pipe is within the preset pressure value range. If not, trigger a pressure warning message; if so, the mass concrete and the heat dissipation steel pipe are tightly wrapped, and a construction completion prompt message is obtained;

[0048] According to the construction completion prompt information, stop the vibration operation of the large volume concrete at the current location.

[0049] In this solution, if no, after the pressure warning information is triggered, specifically includes:

[0050] When the pressure of the large volume concrete on the heat dissipation steel pipe is lower than the preset pressure value range, the insufficient pressure warning message is triggered;

[0051] Continue vibrating the large volume of concrete at the current location according to the insufficient pressure warning information;

[0052] When the pressure of the massive concrete on the heat dissipation steel pipe exceeds the preset pressure range, an excessive pressure warning message is triggered;

[0053] According to the excessive pressure warning message, remove the heavy objects on the large volume of concrete at the current location.

[0054] This plan also includes:

[0055] Based on the preset temperature sensor, the internal temperature value of the mass concrete is obtained;

[0056] Determine whether the internal temperature of the mass concrete is greater than a preset first temperature threshold, and if so, trigger a temperature reduction prompt message; if not, obtain the surface temperature of the mass concrete;

[0057] Subtracting the surface temperature of the corresponding mass concrete from the internal temperature of the mass concrete to obtain a first temperature difference;

[0058] Determine whether the first temperature difference is greater than a preset first temperature difference threshold, and if so, trigger a temperature reduction prompt message; if not, the first temperature difference corresponding to the large volume concrete is normal;

[0059] According to the temperature drop prompt information, start the cooling water switch.

[0060] In this solution, the step of starting the cooling water switch according to the temperature drop prompt information specifically includes:

[0061] Dividing the first temperature difference of the mass concrete into preset temperature ranges to obtain temperature drop prompt level information corresponding to the first temperature difference of the mass concrete;

[0062] According to the temperature drop prompt level, query the preset cooling water switch level table to obtain the corresponding cooling water switch level;

[0063] The temperature drop prompt information includes corresponding temperature drop prompt level information.

[0064] This plan also includes:

[0065] Obtain the temperature value of the water inlet and outlet of the heat dissipation steel pipe;

[0066] Subtract the temperature value at the water inlet of the heat dissipation steel pipe from the temperature value at the water outlet of the heat dissipation steel pipe to obtain a second temperature difference;

[0067] determining whether the second temperature difference is greater than a preset second temperature difference threshold, and if so, generating temperature drop prompt level adjustment information;

[0068] Increase the cooling water switch by one level according to the temperature drop prompt level adjustment information.

[0069] The present invention discloses a method and system for controlling cracks in large-volume concrete. The method and system obtain the pressure value of the heat dissipation steel pipe in real time through a preset pressure sensor, thereby improving the bond strength between the large-volume concrete and the heat dissipation steel pipe; and obtain the cooling water temperature value, the internal temperature value and the surface temperature value of the large-volume concrete in real time through a preset temperature sensor, thereby improving the heat dissipation accuracy of the large-volume concrete, thereby controlling the deformation of the large-volume concrete during the heat dissipation process, and further achieving effective control of cracks in the large-volume concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 A flow chart of a method for controlling cracks in mass concrete according to the present invention is shown;

[0071] Figure 2 A block diagram of a mass concrete crack control system according to the present invention is shown. DETAILED DESCRIPTION

[0072] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0073] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0074] Figure 1A flow chart of a method for controlling cracks in mass concrete according to the present invention is shown.

[0075] like Figure 1 As shown, the present invention provides a method for controlling cracks in mass concrete, comprising:

[0076] S101, obtaining size information of mass concrete;

[0077] S102, obtaining the distribution position of the heat dissipation steel pipes corresponding to the mass concrete according to the size information of the mass concrete and the preset construction method;

[0078] S103: placing heat dissipation steel pipes at heat dissipation steel pipe distribution positions corresponding to the mass concrete, and connecting cooling water to cool the interior of the mass concrete.

[0079] According to an embodiment of the present invention, on-site construction technicians can determine the distribution position of the heat dissipation steel pipes corresponding to the large-volume concrete according to the sizes of different large-volume concrete and the preset construction methods. For example, if the thickness of the large-volume concrete is 2 meters, the heat dissipation steel pipes can be divided into three layers, and the upper and lower heat dissipation steel pipes are 30 centimeters away from the top surface and the ground respectively, and the heat dissipation steel pipes in the middle position are placed in the middle position; the heat dissipation steel pipes have a water inlet and a water outlet, and cooling water enters through the water inlet of the heat dissipation steel pipe and comes out from the water outlet, thereby taking away the heat inside the large-volume concrete.

[0080] According to an embodiment of the present invention, after obtaining the distribution position of the heat dissipation steel pipes corresponding to the mass concrete, the method further includes:

[0081] According to the distribution position of the heat dissipation steel pipes of the mass concrete, the predicted value of the pressure of the mass concrete on the heat dissipation steel pipes is obtained;

[0082] According to the predicted value of the pressure of the corresponding large volume concrete on the heat dissipation steel pipe, the preset heat dissipation steel pipe table is searched to obtain the thickness of the corresponding heat dissipation steel pipe;

[0083] Select the corresponding heat dissipation steel pipe model according to the thickness of the corresponding heat dissipation steel pipe.

[0084] It should be noted that the deeper the heat dissipation steel pipe is buried, the greater the pressure of the large-volume concrete on the corresponding heat dissipation steel pipe, the greater the predicted value of the pressure of the large-volume concrete on the heat dissipation steel pipe, and the greater the required thickness of the heat dissipation steel pipe. The preset heat dissipation steel pipe table stores the thickness of the heat dissipation steel pipe corresponding to the predicted value of the pressure of the large-volume concrete on the heat dissipation steel pipe at each stage. For example, the buried depth of the heat dissipation steel pipe within one meter is set to 3 mm, and the buried depth of the heat dissipation steel pipe beyond one meter is set to 3.5 mm. The heat dissipation steel pipe model is generally a cast iron water pipe.

[0085] According to an embodiment of the present invention, after placing the heat dissipation steel pipes at the heat dissipation steel pipe distribution position corresponding to the mass concrete, the method further includes:

[0086] Based on the preset pressure sensor, the pressure value of the mass concrete on the heat dissipation steel pipe is obtained;

[0087] Determine whether the pressure value of the mass concrete on the heat dissipation steel pipe is within the preset pressure value range. If not, trigger a pressure warning message; if so, the mass concrete and the heat dissipation steel pipe are tightly wrapped, and a construction completion prompt message is obtained;

[0088] According to the construction completion prompt information, stop the vibration operation of the large volume concrete at the current location.

[0089] It should be noted that during the construction of large-volume concrete, the pressure value of the large-volume concrete on the heat dissipation steel pipe is obtained in real time through a preset pressure sensor. If the pressure value of the large-volume concrete on the heat dissipation steel pipe is within the preset pressure value range, it means that the large-volume concrete at the current position has been vibrated and compacted, and vibration can be stopped.

[0090] According to an embodiment of the present invention, if not, after the pressure warning information is triggered, the steps specifically include:

[0091] When the pressure of the large volume concrete on the heat dissipation steel pipe is lower than the preset pressure value range, the insufficient pressure warning message is triggered;

[0092] Continue vibrating the large volume of concrete at the current location according to the insufficient pressure warning information;

[0093] When the pressure of the massive concrete on the heat dissipation steel pipe exceeds the preset pressure range, an excessive pressure warning message is triggered;

[0094] According to the excessive pressure warning message, remove the heavy objects on the large volume of concrete at the current location.

[0095] It should be noted that the pressure warning information includes insufficient pressure warning information and excessive pressure warning information. When the insufficient pressure warning information is triggered, it means that the large-volume concrete at the current location is not compacted enough and needs to be vibrated further; when the excessive pressure warning information is triggered, it means that there are other heavy objects on the surface of the large-volume concrete at the current location, such as a roller.

[0096] According to an embodiment of the present invention, the further embodiment includes:

[0097] Based on the preset temperature sensor, the internal temperature value of the mass concrete is obtained;

[0098] Determine whether the internal temperature of the mass concrete is greater than a preset first temperature threshold, and if so, trigger a temperature reduction prompt message; if not, obtain the surface temperature of the mass concrete;

[0099] Subtracting the surface temperature of the corresponding mass concrete from the internal temperature of the mass concrete to obtain a first temperature difference;

[0100] Determine whether the first temperature difference is greater than a preset first temperature difference threshold, and if so, trigger a temperature reduction prompt message; if not, the first temperature difference corresponding to the large volume concrete is normal;

[0101] According to the temperature drop prompt information, start the cooling water switch.

[0102] It should be noted that, for example, if the preset first temperature threshold is set to 40 degrees Celsius, then when the internal temperature value of the bulk concrete is greater than 40 degrees Celsius, a cooling prompt message is triggered; if the internal temperature value of the bulk concrete is less than or equal to 40 degrees Celsius, the first temperature difference is determined according to the first temperature difference threshold. For example, if the preset first temperature difference threshold is 20 degrees Celsius, then when the first temperature difference is greater than 20 degrees Celsius, a cooling prompt message is triggered; otherwise, the current bulk concrete does not require cooling treatment.

[0103] According to an embodiment of the present invention, the step of activating the cooling water switch according to the temperature drop prompt information specifically includes:

[0104] Dividing the first temperature difference of the mass concrete into preset temperature ranges to obtain temperature drop prompt level information corresponding to the first temperature difference of the mass concrete;

[0105] According to the temperature drop prompt level, query the preset cooling water switch level table to obtain the corresponding cooling water switch level;

[0106] The temperature drop prompt information includes corresponding temperature drop prompt level information.

[0107] It should be noted that, for example, with 5 degrees Celsius as a cooling level, the first temperature difference of the mass concrete can be divided into five preset temperature ranges, namely [0, 5), [5, 10), [10, 15), [15, 20), and [20, 25). Among them, the preset temperature range [0, 5) is set as the first cooling prompt level, the preset temperature range [5, 10) is set as the second cooling prompt level, and so on. The higher the cooling prompt level, the higher the corresponding cooling water switch level. For example, the first cooling water switch level is set to open 20% of the maximum cooling water flow, the second cooling water switch level is set to open 40% of the maximum cooling water flow, and so on. The preset cooling water switch level table stores multiple cooling water switch levels, and each cooling water switch level corresponds to a cooling prompt level, for example, the first cooling prompt level corresponds to the first cooling water switch level, and the second cooling prompt level corresponds to the second cooling water switch level.

[0108] According to an embodiment of the present invention, the further embodiment includes:

[0109] Based on a preset first time period, obtaining a temperature value at a water inlet position of the heat dissipation steel pipe and a temperature value at a water outlet position of the heat dissipation steel pipe;

[0110] Subtract the temperature value at the water inlet of the heat dissipation steel pipe from the temperature value at the water outlet of the heat dissipation steel pipe to obtain a second temperature difference;

[0111] determining whether the second temperature difference is greater than a preset second temperature difference threshold, and if so, generating temperature drop prompt level adjustment information;

[0112] Increase the cooling water switch by one level according to the temperature drop prompt level adjustment information.

[0113] It should be noted that when the second temperature difference is greater than the preset second temperature difference threshold, it indicates that the cooling water in the heat dissipation steel pipe has a poor heat dissipation effect at the tail end of the heat dissipation steel pipe, and the tail end of the heat dissipation steel pipe is close to the water outlet end of the heat dissipation steel pipe. The generation of the cooling prompt level adjustment information is to increase the cooling prompt level by one, for example, if it was previously the fourth cooling prompt level, it is increased to the fifth cooling prompt level. For example, the preset first time period is set to 1 minute. If, after the cooling prompt level adjustment information is generated within the previous preset first time period, the second temperature difference within the next preset first time period is greater than the preset second temperature difference threshold, the cooling prompt level adjustment information is continued to be generated, and multiple cooling prompt level adjustment information are superimposed. For example, the third cooling prompt level becomes the fifth cooling prompt level after the cooling prompt level adjustment information of two adjacent preset first time periods is generated. If the second temperature difference within the current preset first time period is less than or equal to the preset second temperature difference threshold, the cooling prompt level is restored to the previous level until it is restored to the cooling prompt level before the cooling prompt level adjustment information is generated.

[0114] According to an embodiment of the present invention, the further embodiment includes:

[0115] When the cooling water switch is at the highest level, based on the preset pressurization system, the pressurization value of the heat dissipation steel pipe is adjusted according to the temperature drop prompt level adjustment information to increase the cooling water flow rate.

[0116] It should be noted that when the cooling water switch is at the highest level and it is not possible to increase the cooling water switch by one level according to the temperature drop prompt level adjustment information, the cooling water flow rate is increased through the preset pressurization system according to the temperature drop prompt level adjustment information. Furthermore, the preset pressurization system stores different levels of pressurization, where higher temperature drop prompt levels correspond to higher pressurization levels. For example, when the temperature drop prompt level is level five or below, it is normal pressurization. When the temperature drop prompt level is level six, it corresponds to the first pressurization level; when the temperature drop prompt level is level seven, it corresponds to the second pressurization level, and so on. The higher the pressurization level, the higher the cooling water flow rate in the heat dissipation steel pipe.

[0117] According to an embodiment of the present invention, the further embodiment includes:

[0118] Get the temperature value of the external environment;

[0119] Subtract the temperature of the external environment from the surface temperature of the mass concrete to obtain a third temperature difference;

[0120] Determining whether the third temperature difference is greater than a preset third temperature difference threshold, and if so, triggering an external environment abnormality prompt message;

[0121] Maintain the surface of large-volume concrete according to abnormal external environmental prompts.

[0122] It should be noted that when the third temperature difference is greater than the preset third temperature difference threshold, cracks may form on the surface of the mass concrete due to the large temperature difference, thereby triggering an external environment abnormality prompt message. For example, if the temperature of the external environment is too low, it is necessary to perform thermal insulation and moisture maintenance measures on the surface of the mass concrete. The preset third temperature difference threshold is not greater than 20 degrees Celsius, for example, it is set to 15 degrees Celsius.

[0123] According to an embodiment of the present invention, the further embodiment includes:

[0124] Based on a preset second time period, obtaining a first internal temperature value and a second internal temperature value of the mass concrete according to the internal temperature value of the mass concrete;

[0125] subtracting the first internal temperature value from the second internal temperature value of the mass concrete to obtain an internal temperature difference value of the mass concrete;

[0126] determining whether the absolute value of the internal temperature difference of the mass concrete is greater than a preset fourth temperature difference threshold, and if so, generating cooling water adjustment information; if not, the internal temperature drop of the mass concrete is normal;

[0127] According to the cooling water adjustment information, the cooling water inside the heat dissipation steel pipe is adjusted to the internal temperature value of the temperature mass concrete.

[0128] It should be noted that, for example, if the preset second time period is set to 1 hour, the time points corresponding to the first internal temperature value and the second internal temperature value of the mass concrete will differ by 1 hour. For example, if the time point corresponding to the first internal temperature value of the mass concrete is 11 o'clock, then the time point corresponding to the second internal temperature value of the mass concrete is 12 o'clock. When the absolute value of the internal temperature difference of the mass concrete is greater than the preset fourth temperature difference threshold, if the internal temperature difference of the mass concrete is negative, it means that the temperature is dropping too fast, and the switching level or pressurization level of the cooling water should be lowered; if the internal temperature difference of the mass concrete is positive, it means that the temperature is dropping too slow, and the switching level or pressurization level of the cooling water should be increased.

[0129] Figure 2 A block diagram of a mass concrete crack control system according to the present invention is shown.

[0130] like Figure 2 As shown, the second aspect of the present invention provides a mass concrete crack control system 2, comprising a memory 21 and a processor 22. The memory stores a mass concrete crack control method program, and when the mass concrete crack control method program is executed by the processor, the following steps are implemented:

[0131] Obtain dimensional information of mass concrete;

[0132] According to the size information of the mass concrete and the preset construction method, the distribution position of the heat dissipation steel pipe corresponding to the mass concrete is obtained;

[0133] Place the heat dissipation steel pipe at the heat dissipation steel pipe distribution position corresponding to the mass concrete, and connect it with cooling water to cool the interior of the mass concrete.

[0134] According to an embodiment of the present invention, on-site construction technicians can determine the distribution position of the heat dissipation steel pipes corresponding to the large-volume concrete according to the sizes of different large-volume concrete and the preset construction methods. For example, if the thickness of the large-volume concrete is 2 meters, the heat dissipation steel pipes can be divided into three layers, and the upper and lower heat dissipation steel pipes are 30 centimeters away from the top surface and the ground respectively, and the heat dissipation steel pipes in the middle position are placed in the middle position; the heat dissipation steel pipes have a water inlet and a water outlet, and cooling water enters through the water inlet of the heat dissipation steel pipe and comes out from the water outlet, thereby taking away the heat inside the large-volume concrete.

[0135] According to an embodiment of the present invention, after obtaining the distribution position of the heat dissipation steel pipes corresponding to the mass concrete, the method further includes:

[0136] According to the distribution position of the heat dissipation steel pipes of the mass concrete, the predicted value of the pressure of the mass concrete on the heat dissipation steel pipes is obtained;

[0137] According to the predicted value of the pressure of the corresponding large volume concrete on the heat dissipation steel pipe, the preset heat dissipation steel pipe table is searched to obtain the thickness of the corresponding heat dissipation steel pipe;

[0138] Select the corresponding heat dissipation steel pipe model according to the thickness of the corresponding heat dissipation steel pipe.

[0139] It should be noted that the deeper the heat dissipation steel pipe is buried, the greater the pressure of the large-volume concrete on the corresponding heat dissipation steel pipe, the greater the predicted value of the pressure of the large-volume concrete on the heat dissipation steel pipe, and the greater the required thickness of the heat dissipation steel pipe. The preset heat dissipation steel pipe table stores the thickness of the heat dissipation steel pipe corresponding to the predicted value of the pressure of the large-volume concrete on the heat dissipation steel pipe at each stage. For example, the buried depth of the heat dissipation steel pipe within one meter is set to 3 mm, and the buried depth of the heat dissipation steel pipe beyond one meter is set to 3.5 mm. The heat dissipation steel pipe model is generally a cast iron water pipe.

[0140] According to an embodiment of the present invention, after placing the heat dissipation steel pipes at the heat dissipation steel pipe distribution position corresponding to the mass concrete, the method further includes:

[0141] Based on the preset pressure sensor, the pressure value of the mass concrete on the heat dissipation steel pipe is obtained;

[0142] Determine whether the pressure value of the mass concrete on the heat dissipation steel pipe is within the preset pressure value range. If not, trigger a pressure warning message; if so, the mass concrete and the heat dissipation steel pipe are tightly wrapped, and a construction completion prompt message is obtained;

[0143] According to the construction completion prompt information, stop the vibration operation of the large volume concrete at the current location.

[0144] It should be noted that during the construction of large-volume concrete, the pressure value of the large-volume concrete on the heat dissipation steel pipe is obtained in real time through a preset pressure sensor. If the pressure value of the large-volume concrete on the heat dissipation steel pipe is within the preset pressure value range, it means that the large-volume concrete at the current position has been vibrated and compacted, and vibration can be stopped.

[0145] According to an embodiment of the present invention, if not, after the pressure warning information is triggered, the steps specifically include:

[0146] When the pressure of the large volume concrete on the heat dissipation steel pipe is lower than the preset pressure value range, the insufficient pressure warning message is triggered;

[0147] Continue vibrating the large volume of concrete at the current location according to the insufficient pressure warning information;

[0148] When the pressure of the massive concrete on the heat dissipation steel pipe exceeds the preset pressure range, an excessive pressure warning message is triggered;

[0149] According to the excessive pressure warning message, remove the heavy objects on the large volume of concrete at the current location.

[0150] It should be noted that the pressure warning information includes insufficient pressure warning information and excessive pressure warning information. When the insufficient pressure warning information is triggered, it means that the large-volume concrete at the current location is not compacted enough and needs to be vibrated further; when the excessive pressure warning information is triggered, it means that there are other heavy objects on the surface of the large-volume concrete at the current location, such as a roller.

[0151] According to an embodiment of the present invention, the further embodiment includes:

[0152] Based on the preset temperature sensor, the internal temperature value of the mass concrete is obtained;

[0153] Determine whether the internal temperature of the mass concrete is greater than a preset first temperature threshold, and if so, trigger a temperature reduction prompt message; if not, obtain the surface temperature of the mass concrete;

[0154] Subtracting the surface temperature of the corresponding mass concrete from the internal temperature of the mass concrete to obtain a first temperature difference;

[0155] Determine whether the first temperature difference is greater than a preset first temperature difference threshold, and if so, trigger a temperature reduction prompt message; if not, the first temperature difference corresponding to the large volume concrete is normal;

[0156] According to the temperature drop prompt information, start the cooling water switch.

[0157] It should be noted that, for example, if the preset first temperature threshold is set to 40 degrees Celsius, then when the internal temperature value of the bulk concrete is greater than 40 degrees Celsius, a cooling prompt message is triggered; if the internal temperature value of the bulk concrete is less than or equal to 40 degrees Celsius, the first temperature difference is determined according to the first temperature difference threshold. For example, if the preset first temperature difference threshold is 20 degrees Celsius, then when the first temperature difference is greater than 20 degrees Celsius, a cooling prompt message is triggered; otherwise, the current bulk concrete does not require cooling treatment.

[0158] According to an embodiment of the present invention, the step of activating the cooling water switch according to the temperature drop prompt information specifically includes:

[0159] Dividing the first temperature difference of the mass concrete into preset temperature ranges to obtain temperature drop prompt level information corresponding to the first temperature difference of the mass concrete;

[0160] According to the temperature drop prompt level, query the preset cooling water switch level table to obtain the corresponding cooling water switch level;

[0161] The temperature drop prompt information includes corresponding temperature drop prompt level information.

[0162] It should be noted that, for example, with 5 degrees Celsius as a cooling level, the first temperature difference of the mass concrete can be divided into five preset temperature ranges, namely [0, 5), [5, 10), [10, 15), [15, 20), and [20, 25). Among them, the preset temperature range [0, 5) is set as the first cooling prompt level, the preset temperature range [5, 10) is set as the second cooling prompt level, and so on. The higher the cooling prompt level, the higher the corresponding cooling water switch level. For example, the first cooling water switch level is set to open 20% of the maximum cooling water flow, the second cooling water switch level is set to open 40% of the maximum cooling water flow, and so on. The preset cooling water switch level table stores multiple cooling water switch levels, and each cooling water switch level corresponds to a cooling prompt level, for example, the first cooling prompt level corresponds to the first cooling water switch level, and the second cooling prompt level corresponds to the second cooling water switch level.

[0163] According to an embodiment of the present invention, the further embodiment includes:

[0164] Based on a preset first time period, obtaining a temperature value at a water inlet position of the heat dissipation steel pipe and a temperature value at a water outlet position of the heat dissipation steel pipe;

[0165] Subtract the temperature value at the water inlet of the heat dissipation steel pipe from the temperature value at the water outlet of the heat dissipation steel pipe to obtain a second temperature difference;

[0166] determining whether the second temperature difference is greater than a preset second temperature difference threshold, and if so, generating temperature drop prompt level adjustment information;

[0167] Increase the cooling water switch by one level according to the temperature drop prompt level adjustment information.

[0168] It should be noted that when the second temperature difference is greater than the preset second temperature difference threshold, it indicates that the cooling water in the heat dissipation steel pipe has a poor heat dissipation effect at the tail end of the heat dissipation steel pipe, and the tail end of the heat dissipation steel pipe is close to the water outlet end of the heat dissipation steel pipe. The generation of the cooling prompt level adjustment information is to increase the cooling prompt level by one, for example, if it was previously the fourth cooling prompt level, it is increased to the fifth cooling prompt level. For example, the preset first time period is set to 1 minute. If, after the cooling prompt level adjustment information is generated within the previous preset first time period, the second temperature difference within the next preset first time period is greater than the preset second temperature difference threshold, the cooling prompt level adjustment information is continued to be generated, and multiple cooling prompt level adjustment information are superimposed. For example, the third cooling prompt level becomes the fifth cooling prompt level after the cooling prompt level adjustment information of two adjacent preset first time periods is generated. If the second temperature difference within the current preset first time period is less than or equal to the preset second temperature difference threshold, the cooling prompt level is restored to the previous level until it is restored to the cooling prompt level before the cooling prompt level adjustment information is generated.

[0169] According to an embodiment of the present invention, the further embodiment includes:

[0170] When the cooling water switch is at the highest level, based on the preset pressurization system, the pressurization value of the heat dissipation steel pipe is adjusted according to the temperature drop prompt level adjustment information to increase the cooling water flow rate.

[0171] It should be noted that when the cooling water switch is at the highest level and it is not possible to increase the cooling water switch by one level according to the temperature drop prompt level adjustment information, the cooling water flow rate is increased through the preset pressurization system according to the temperature drop prompt level adjustment information. Furthermore, the preset pressurization system stores different levels of pressurization, where higher temperature drop prompt levels correspond to higher pressurization levels. For example, when the temperature drop prompt level is at level five or below, it is normal pressurization. When the temperature drop prompt level is at level six, it corresponds to the first pressurization level. When the temperature drop prompt level is at level seven, it corresponds to the second pressurization level, and so on. The higher the pressurization level, the higher the cooling water flow rate in the heat dissipation steel pipe.

[0172] According to an embodiment of the present invention, the further embodiment includes:

[0173] Get the temperature value of the external environment;

[0174] Subtract the temperature of the external environment from the surface temperature of the mass concrete to obtain a third temperature difference;

[0175] Determining whether the third temperature difference is greater than a preset third temperature difference threshold, and if so, triggering an external environment abnormality prompt message;

[0176] Maintain the surface of large-volume concrete according to abnormal external environmental prompts.

[0177] It should be noted that when the third temperature difference is greater than the preset third temperature difference threshold, cracks may form on the surface of the mass concrete due to the large temperature difference, thereby triggering an external environment abnormality prompt message. For example, if the temperature of the external environment is too low, it is necessary to perform thermal insulation and moisture maintenance measures on the surface of the mass concrete. The preset third temperature difference threshold is not greater than 20 degrees Celsius, for example, it is set to 15 degrees Celsius.

[0178] According to an embodiment of the present invention, the further embodiment includes:

[0179] Based on a preset second time period, obtaining a first internal temperature value and a second internal temperature value of the mass concrete according to the internal temperature value of the mass concrete;

[0180] subtracting the first internal temperature value from the second internal temperature value of the mass concrete to obtain an internal temperature difference value of the mass concrete;

[0181] determining whether the absolute value of the internal temperature difference of the mass concrete is greater than a preset fourth temperature difference threshold, and if so, generating cooling water adjustment information; if not, the internal temperature drop of the mass concrete is normal;

[0182] According to the cooling water adjustment information, the cooling water inside the heat dissipation steel pipe is adjusted to the internal temperature value of the temperature mass concrete.

[0183] It should be noted that, for example, if the preset second time period is set to 1 hour, the time points corresponding to the first internal temperature value and the second internal temperature value of the mass concrete will differ by 1 hour. For example, if the time point corresponding to the first internal temperature value of the mass concrete is 11 o'clock, then the time point corresponding to the second internal temperature value of the mass concrete is 12 o'clock. When the absolute value of the internal temperature difference of the mass concrete is greater than the preset fourth temperature difference threshold, if the internal temperature difference of the mass concrete is negative, it means that the temperature is dropping too fast, and the switching level or pressurization level of the cooling water should be lowered; if the internal temperature difference of the mass concrete is positive, it means that the temperature is dropping too slow, and the switching level or pressurization level of the cooling water should be increased.

[0184] The present invention discloses a method and system for controlling cracks in large-volume concrete, wherein the method comprises: obtaining dimensional information of the large-volume concrete; determining the distribution position of heat dissipation steel pipes corresponding to the large-volume concrete based on the dimensional information of the large-volume concrete and a preset construction method; placing the heat dissipation steel pipes at the distribution position corresponding to the large-volume concrete, and connecting cooling water to cool the interior of the large-volume concrete. The present invention uses a preset pressure sensor to obtain the pressure value of the heat dissipation steel pipe in real time, thereby improving the bond strength between the large-volume concrete and the heat dissipation steel pipe; then, using a preset temperature sensor to obtain the temperature value of the cooling water, the internal temperature value of the large-volume concrete, and the surface temperature value in real time, thereby improving the heat dissipation accuracy of the large-volume concrete, thereby controlling the deformation of the large-volume concrete during the heat dissipation process, and further effectively controlling cracks in the large-volume concrete.

[0185] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0186] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0187] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0188] Those skilled in the art will appreciate that all or part of the steps of the above-mentioned method embodiments may be implemented by hardware associated with program instructions, and the aforementioned program may be stored in a computer-readable storage medium. When the program is executed, the program executes the steps of the above-mentioned method embodiments. The aforementioned storage medium includes various media that can store program codes, such as mobile storage devices, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0189] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

Claims

1. A method for controlling cracks in large-volume concrete, characterized in that: include: Obtain dimensional information of mass concrete; According to the size information of the mass concrete and the preset construction method, the distribution position of the heat dissipation steel pipe corresponding to the mass concrete is obtained; Place the heat dissipation steel pipes at the corresponding heat dissipation steel pipe distribution positions of the mass concrete, and connect them with cooling water to cool the interior of the mass concrete; After placing the heat dissipation steel pipes at the heat dissipation steel pipe distribution positions corresponding to the mass concrete, the method further includes: Based on the preset pressure sensor, the pressure value of the mass concrete on the heat dissipation steel pipe is obtained; Determine whether the pressure value of the mass concrete on the heat dissipation steel pipe is within the preset pressure value range. If not, trigger a pressure warning message; if so, the mass concrete and the heat dissipation steel pipe are tightly wrapped, and a construction completion prompt message is obtained; According to the construction completion prompt information, stop the vibration operation of the large volume concrete at the current location.

2. A method for controlling cracks in mass concrete according to claim 1, characterized in that: After obtaining the heat dissipation steel pipe distribution position corresponding to the mass concrete, the method further includes: According to the distribution position of the heat dissipation steel pipes of the mass concrete, the predicted value of the pressure of the mass concrete on the heat dissipation steel pipes is obtained; According to the predicted value of the pressure of the corresponding large volume concrete on the heat dissipation steel pipe, the preset heat dissipation steel pipe table is searched to obtain the thickness of the corresponding heat dissipation steel pipe; Select the corresponding heat dissipation steel pipe model according to the thickness of the corresponding heat dissipation steel pipe.

3. A method for controlling cracks in mass concrete according to claim 1, characterized in that: If no, after the pressure warning message is triggered, specifically includes: When the pressure of the large volume concrete on the heat dissipation steel pipe is lower than the preset pressure value range, the insufficient pressure warning message is triggered; Continue vibrating the large volume of concrete at the current location according to the insufficient pressure warning information; When the pressure of the massive concrete on the heat dissipation steel pipe exceeds the preset pressure range, an excessive pressure warning message is triggered; According to the excessive pressure warning message, remove the heavy objects on the large volume of concrete at the current location.

4. A method for controlling cracks in mass concrete according to claim 1, characterized in that: Also includes: Based on the preset temperature sensor, the internal temperature value of the mass concrete is obtained; Determine whether the internal temperature of the mass concrete is greater than a preset first temperature threshold, and if so, trigger a temperature reduction prompt message; If not, obtain the surface temperature value of the mass concrete; Subtracting the surface temperature of the corresponding mass concrete from the internal temperature of the mass concrete to obtain a first temperature difference; Determine whether the first temperature difference is greater than a preset first temperature difference threshold, and if so, trigger a temperature reduction prompt message; if not, the first temperature difference corresponding to the large volume concrete is normal; According to the temperature drop prompt information, start the cooling water switch.

5. A method for controlling cracks in mass concrete according to claim 4, characterized in that: The step of starting the cooling water switch according to the temperature drop prompt information specifically includes: Dividing the first temperature difference of the mass concrete into preset temperature ranges to obtain temperature drop prompt level information corresponding to the first temperature difference of the mass concrete; According to the temperature drop prompt level, query the preset cooling water switch level table to obtain the corresponding cooling water switch level; The temperature drop prompt information includes corresponding temperature drop prompt level information.

6. A method for controlling cracks in mass concrete according to claim 1, characterized in that: Also includes: Obtain the temperature value of the water inlet and outlet of the heat dissipation steel pipe; Subtract the temperature value at the water inlet of the heat dissipation steel pipe from the temperature value at the water outlet of the heat dissipation steel pipe to obtain a second temperature difference; determining whether the second temperature difference is greater than a preset second temperature difference threshold, and if so, generating temperature drop prompt level adjustment information; Increase the cooling water switch by one level according to the temperature drop prompt level adjustment information.

7. A mass concrete crack control system, characterized in that: The invention comprises a memory and a processor, wherein the memory stores a method program for controlling cracks in a large volume of concrete, and when the method program for controlling cracks in a large volume of concrete is executed by the processor, the following steps are implemented: Obtain dimensional information of mass concrete; According to the size information of the mass concrete and the preset construction method, the distribution position of the heat dissipation steel pipe corresponding to the mass concrete is obtained; Place the heat dissipation steel pipes at the corresponding heat dissipation steel pipe distribution positions of the mass concrete, and connect them with cooling water to cool the interior of the mass concrete; After placing the heat dissipation steel pipes at the heat dissipation steel pipe distribution positions corresponding to the mass concrete, the method further includes: Based on the preset pressure sensor, the pressure value of the mass concrete on the heat dissipation steel pipe is obtained; Determine whether the pressure value of the mass concrete on the heat dissipation steel pipe is within the preset pressure value range. If not, trigger a pressure warning message; if so, the mass concrete and the heat dissipation steel pipe are tightly wrapped, and a construction completion prompt message is obtained; According to the construction completion prompt information, stop the vibration operation of the large volume concrete at the current location.

8. The mass concrete crack control system according to claim 7, characterized in that: After obtaining the heat dissipation steel pipe distribution position corresponding to the mass concrete, the method further includes: According to the distribution position of the heat dissipation steel pipes of the mass concrete, the predicted value of the pressure of the mass concrete on the heat dissipation steel pipes is obtained; According to the predicted value of the pressure of the corresponding large volume concrete on the heat dissipation steel pipe, the preset heat dissipation steel pipe table is searched to obtain the thickness of the corresponding heat dissipation steel pipe; Select the corresponding heat dissipation steel pipe model according to the thickness of the corresponding heat dissipation steel pipe.

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