CN-122018605-A - Concrete intelligent maintenance system based on concrete strength automatic calculation

CN122018605ACN 122018605 ACN122018605 ACN 122018605ACN-122018605-A

Abstract

The invention discloses an intelligent concrete curing system based on automatic calculation of concrete strength, and belongs to the technical field of concrete curing. The system aims to solve the problems of delayed strength prediction, low precision, poor adaptability and low efficiency in the traditional concrete curing. The system comprises a data acquisition module, a data processing and intensity calculating module and a maintenance control module, wherein the data acquisition module acquires temperature parameters through an overground/underground temperature sensor, the data processing and intensity calculating module calculates maturity based on an equivalent age method and dynamically adjusts according to cement types and environmental temperature by combining a rate constant k related to the cement types, the maintenance control module compares calculated intensity with a standard maintenance theoretical value, automatically adjusts and controls humidity and temperature of the overground part, and improves the temperature when the intensity is insufficient, and supports manual intervention to set the temperature. The system realizes the accuracy and automation of concrete curing, ensures the stable increase of the strength and improves the engineering quality and efficiency.

Inventors

ZHANG SHANGYONG
SHEN HAO
Wei Yiheng
WANG BING
LI XIAOQING
MA LIQUN
MU YONGBAO
LIU WEI
Pian shuaihua
WANG WEI
ZHAO RAN
WANG HANSHENG

Assignees

国网河北省电力有限公司邯郸供电公司

Dates

Publication Date: 20260512
Application Date: 20260212

Claims (10)

1. Concrete intelligent maintenance system based on concrete intensity is automatic to be calculated, its characterized in that includes: the data acquisition module is used for acquiring temperature parameters in the concrete curing process; The data processing and strength calculating module is electrically connected with the data acquisition module, receives the temperature parameter, calculates the concrete maturity based on the temperature parameter, and calculates the current strength of the concrete in real time through a strength calculating formula; And the maintenance control module is electrically connected with the data processing and intensity calculating module, receives the current intensity of the concrete, and generates and executes a maintenance environment adjustment strategy according to the comparison result of the current intensity of the concrete and the standard maintenance theoretical value, wherein the maintenance environment adjustment strategy comprises regulation and control of temperature and humidity.
2. The intelligent concrete curing system based on automatic calculation of concrete strength according to claim 1, wherein the data acquisition module comprises: The overground temperature sensor is arranged at the overground part of the concrete structure and is used for collecting the temperature of the overground part concrete; The underground temperature sensor is pre-buried in the hole wall temperature measuring pipe corresponding to the underground part of the concrete structure and is used for collecting the temperature of the concrete of the underground part; The temperature acquisition strategy of the data acquisition module is to acquire temperature data for 2 times a day, namely the highest temperature and the lowest temperature, and the average value of the two data is used as the temperature parameter of the same day to be transmitted to the data processing and intensity calculating module.
3. The intelligent concrete curing system based on automatic concrete strength estimation according to claim 1, wherein in the data processing and strength estimation module, the concrete maturity M (t) is calculated by adopting an equivalent age method (Nurse-Saul model), and the formula is: Wherein T i is the average concrete temperature (° C) in the ith time period, T 0 is the reference temperature, the value is-10 ℃, deltati is the time interval of the ith time period, the time interval is calculated according to hours or days, n is the total time segment number, and the data processing and strength estimating module uses the maturity obtained by calculation for strength estimation.
4. The intelligent concrete curing system based on automatic calculation of concrete strength according to claim 1, wherein the formula of calculation of the strength is: wherein f (t) is the concrete strength (MPa) at the time t, f Final result is the final strength (MPa) of the concrete, k is a rate constant related to the type of cement, M (t) is the concrete maturity at the time t, and the data processing and strength estimating module transmits the estimated f (t) to the maintenance control module.
5. The intelligent concrete curing system based on automatic concrete strength estimation according to claim 4, wherein the rate constant k has the following value range: ordinary Portland cement: ; Early strength cement (Type III): ; slag/fly ash cement: ; high-temperature curing, namely curing temperature is more than 30 ℃, wherein the k value is increased by 20% -30% on the basis of the corresponding type; low temperature curing, i.e. when curing temperature is less than 10 ℃, k value is reduced by 30% -50% based on the corresponding type; And the data processing and strength calculating module automatically matches the corresponding k value according to the type of cement and the curing temperature.
6. The intelligent concrete curing system based on automatic concrete strength calculation according to claim 1, wherein the control logic of the curing control module comprises: The humidity of the concrete curing environment of the underground part is regarded as a standard condition by default; the overground part maintains the set humidity constant through a humidity control device, the maintenance control module is electrically connected with the humidity control device, and the operation parameters of the maintenance control module are adjusted based on humidity data; when the received calculated strength f (t) is lower than a standard curing theoretical value, the curing control module controls the temperature regulating and controlling device to improve the curing temperature so as to accelerate the concrete maturity growth speed and enable the strength growth curve to be smooth.
7. The intelligent concrete curing system based on automatic concrete strength calculation according to claim 6, wherein the curing control module further supports a manual intervention mode, the curing control module is provided with a manual operation interface, when the increase of the concrete strength is required to be accelerated, the curing temperature higher than the current recommended value can be input through the manual operation interface, and the curing control module receives a manual setting value and controls the temperature regulating device to execute.
8. The intelligent concrete curing system based on automatic concrete strength estimation according to claim 1, wherein the standard curing theoretical value is a standard curve of the preset concrete strength changing along with age, the curve is generated based on the concrete strength development rule under the standard curing condition, and the standard curing theoretical value is stored in the data processing and strength estimation module and is used for being compared with the estimated strength f (t), the standard curing condition is specifically that the temperature is 20+/-2 ℃, and the relative humidity is more than or equal to 95%.
9. The intelligent concrete curing system based on automatic concrete strength calculation according to claim 1, wherein the data acquisition module further comprises a humidity sensor, wherein the humidity sensor is arranged in an environment of the overground concrete and is used for acquiring environmental humidity data and transmitting the humidity data to the curing control module, and the curing control module adjusts operation parameters of the humidity regulating device based on the humidity data.
10. The intelligent concrete curing system based on automatic concrete strength estimation according to claim 1, further comprising a data storage and display module electrically connected with the data acquisition module, the data processing and strength estimation module and the curing control module, respectively, for receiving and storing temperature, humidity, maturity and estimated strength in real time, and visually displaying a concrete strength growth curve and a curing strategy execution record.

Description

Concrete intelligent maintenance system based on concrete strength automatic calculation Technical Field The invention relates to the technical field of concrete curing, in particular to an intelligent concrete curing system based on automatic calculation of concrete strength. Background In the construction of the power transmission line foundation, the maintenance quality of concrete directly influences the strength and durability of the foundation structure. The traditional concrete curing mode mainly relies on manual experience, and the curing environment is controlled by means of regular watering, covering, heat preservation and the like, so that the following defects exist: 1. The maintenance precision is low, manual control is difficult to accurately maintain stable temperature and humidity, the uneven development of concrete strength is easy to cause, and the problems of strength fluctuation or slow growth and the like are solved; 2. the traditional method can acquire the strength data only by manually manufacturing test blocks and checking the test blocks, can not reflect the actual strength of the concrete in real time, and is difficult to adjust the maintenance strategy in time; 3. the adaptability is poor, the dynamic influence of factors such as cement type, curing temperature and the like on the strength development is not considered, and a personalized curing scheme is difficult to formulate aiming at different working conditions; 4. the efficiency is low, the manual inspection and operation are relied on, the time and the labor are consumed, the improper maintenance is easy to be caused by the manual negligence, and the engineering quality is influenced. At present, some prior art attempts to assist maintenance through temperature monitoring, but lacks closed-loop control logic based on real-time calculation of strength, and intelligent linkage of strength prediction, strategy adjustment and maintenance execution cannot be realized. The invention aims to solve the problems, and realizes the accurate and automatic maintenance of the basic concrete of the power transmission line by integrating the automatic strength calculation model and the intelligent regulation module. Disclosure of Invention In order to solve the technical problems, the invention provides an intelligent concrete curing system based on automatic calculation of concrete strength, which is used for realizing accurate and automatic curing of basic concrete of a power transmission line. The invention discloses an intelligent concrete curing system based on automatic calculation of concrete strength, which comprises the following components: the data acquisition module is used for acquiring temperature parameters in the concrete curing process; The data processing and strength calculating module is electrically connected with the data acquisition module, receives the temperature parameter, calculates the concrete maturity based on the temperature parameter, and calculates the current strength of the concrete in real time through a strength calculating formula; And the maintenance control module is electrically connected with the data processing and intensity calculating module, receives the current intensity of the concrete, and generates and executes a maintenance environment adjustment strategy according to the comparison result of the current intensity of the concrete and the standard maintenance theoretical value, wherein the maintenance environment adjustment strategy comprises regulation and control of temperature and humidity. Further, the data acquisition module includes: the overground temperature sensor is arranged at the overground part of the concrete structure, such as a pile head, and is used for collecting the temperature of the overground part concrete; the underground temperature sensor is pre-buried in a hole wall temperature measuring pipe corresponding to an underground part of the concrete structure, wherein the underground part is used for collecting the temperature of the concrete of the underground part, such as a pile body; The temperature acquisition strategy of the data acquisition module is to acquire temperature data for 2 times a day, namely the highest temperature and the lowest temperature, and the average value of the two data is used as the temperature parameter of the same day to be transmitted to the data processing and intensity calculating module. Furthermore, in the data processing and strength calculating module, the concrete maturity M (t) is calculated by adopting an equivalent age method (Nurse-Saul model), and the formula is as follows: Wherein T i is the average concrete temperature (° C) in the ith time period, T 0 is the reference temperature, the value is-10 ℃, deltati is the time interval of the ith time period, the time interval is calculated according to hours or days, n is the total time segment number, and the data processing and strength estimating module uses the maturity obt