Quality control method and system for concrete precast beam

Abstract

The invention relates to the technical field of quality data processing, and particularly discloses a quality control method and system for a concrete precast beam, and the method precisely obtains and analyzes environmental parameters of an expected manufacturing process of the concrete precast beam, and then carries out the personalized matching of an optimal compliance parameter set of the manufacturing process of the concrete precast beam. Through deep comprehensive analysis of the expected manufacturing process parameters and the compliance parameter set of the concrete precast beam, the expected manufacturing quality compliance degree of the concrete precast beam can be accurately identified, targeted adjustment and optimization are carried out according to the expected manufacturing quality compliance degree, it is ensured that the quality of the produced precast beam is superior, and the production efficiency is improved. In addition, pollution parameters in the actual manufacturing process of the concrete precast beam are collected and analyzed, manufacturing pollution is comprehensively managed, and therefore it is guaranteed that the environment is green and environmentally friendly while precise and efficient production is guaranteed, the production efficiency and product quality of the concrete precast beam are improved through the quality control method, and the production cost is reduced. And the environmental pollution in the production process is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of quality data processing, and in particular to a quality control method and system for precast concrete beams. Background Art

[0002] In the construction of modern transportation infrastructure, precast concrete bridges are important structural components, and their construction quality and performance are directly related to the safety and durability of the entire bridge project. With the advancement of science and technology and the deepening of engineering practice, the control accuracy of the vibration and pouring quality of precast concrete bridges is also increasing.

[0003] For example, the invention patent with announcement number CN113326550B announces a real-time verification method for the vibration quality of precast concrete bridges. By constructing a random power spectrum model of the vibration time history and a reasonable range of model parameters of a large number of qualified precast concrete bridges, the casting and vibration of the precast concrete bridge to be tested is guided. The real-time model parameters are collected, compared with the reasonable range, it is determined whether the current casting and vibration are qualified, and the casting and vibration of the next stage are adjusted to guide the adjustment, so as to realize the self-feedback and self-correction vibration casting cycle, and form a control closed loop of the concrete vibration process.

[0004] For example, the invention patent with announcement number CN118551459B announces a prefabricated box girder beam surface casting quality inspection system based on BIM technology. The system includes: BIM model building module, vibration input simulation module, vibration parameter confirmation module, actual vibration detection module, vibration correction confirmation module, pouring status detection module, concrete feature image library and pouring analysis feedback terminal.

[0005] However, in the process of implementing the embodiments of the present application, it was found that the above-mentioned technology has at least the following technical problems: in the existing technical system, the quality control of precast concrete beams is often limited to an in-depth and detailed analysis of the vibration link in the casting process. This approach implies a premise that, except for the vibration process itself, other production conditions of precast concrete beams are considered to have no effect on the quality of precast concrete beams, thereby limiting the depth and breadth of quality control and laying hidden dangers for the long-term stability and safety of precast concrete beams. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a quality control method and system for precast concrete beams, which can effectively solve the problems involved in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: In a first aspect, the present invention provides a quality control method for precast concrete beams, including: step 1, obtaining environmental parameters belonging to the expected manufacturing process of the precast concrete beams, analyzing the environmental compliance factors of the expected manufacturing process of the precast concrete beams, and matching the compliance parameter set of the precast concrete beam manufacturing process according to the environmental compliance factors of the expected manufacturing process of the precast concrete beams; step 2, collecting the expected manufacturing process parameters of the precast concrete beams, and combining the compliance parameter set of the precast concrete beam manufacturing process to evaluate the expected manufacturing quality compliance index of the precast concrete beams, and comparing it with the expected manufacturing quality compliance threshold; step 3, if the expected manufacturing quality compliance index of the precast concrete beams is less than or equal to the expected manufacturing quality compliance threshold, then controlling and adjusting the expected manufacturing process parameters of the precast concrete beams; if the expected manufacturing quality compliance index of the precast concrete beams is greater than the expected manufacturing quality compliance threshold, applying the expected manufacturing process parameters of the precast concrete beams to actual construction; step 4, collecting pollution parameters of the actual manufacturing process of the precast concrete beams, determining the environmental pollution index of the actual manufacturing process of the precast concrete beams, and thus providing management feedback on the actual manufacturing process of the precast concrete beams.

[0008] As a further method, the compliance parameter set of the concrete precast beam manufacturing process is matched. The specific matching process is: matching the environmental compliance factor of the expected manufacturing process of the concrete precast beam with the compliance parameter set of the concrete precast beam manufacturing process corresponding to each environmental compliance factor interval stored in the control database, thereby obtaining the compliance parameter set of the concrete precast beam manufacturing process corresponding to the environmental compliance factor of the expected manufacturing process of the concrete precast beam.

[0009] As a further method, the expected manufacturing process parameters of the precast concrete beam are controlled and adjusted, and the specific control and adjustment process is: the expected manufacturing quality compliance threshold and the expected manufacturing quality compliance index of the precast concrete beam are subjected to difference processing, and the processing result is marked as the expected manufacturing quality compliance index deviation value of the precast concrete beam; according to the expected manufacturing quality compliance index deviation value of the precast concrete beam, an adjustment set of the expected manufacturing process parameters is matched; according to the adjustment set of the expected manufacturing process parameters, the expected manufacturing process parameters of the precast concrete beam are updated, and the expected manufacturing quality compliance index of the precast concrete beam is re-evaluated, thereby completing the control adjustment of the expected manufacturing process parameters of the precast concrete beam.

[0010] As a further method, the actual manufacturing process of the precast concrete beam is managed and fed back. The specific analysis process is: comparing the environmental pollution index of the actual manufacturing process of the precast concrete beam with the environmental pollution threshold; if the environmental pollution index of the actual manufacturing process of the precast concrete beam is greater than the environmental pollution threshold, generating an environmental pollution management set according to the environmental pollution index of the actual manufacturing process of the precast concrete beam, and managing and feeding back the actual manufacturing process of the precast concrete beam based on the environmental pollution management set; if the environmental pollution index of the actual manufacturing process of the precast concrete beam is less than or equal to the environmental pollution threshold, continuously monitoring and collecting pollution parameters of the actual manufacturing process of the precast concrete beam.

[0011] The second aspect of the present invention provides a system for applying a quality control method for a precast concrete beam as described above, comprising: an environmental analysis module, used to obtain environmental parameters belonging to an expected manufacturing process of the precast concrete beam, analyze the environmental compliance factors of the expected manufacturing process of the precast concrete beam, and match a compliance parameter set for the manufacturing process of the precast concrete beam according to the environmental compliance factors of the expected manufacturing process of the precast concrete beam; a quality assessment module, used to collect the expected manufacturing process parameters of the precast concrete beam, and evaluate the expected manufacturing quality compliance index of the precast concrete beam in combination with the compliance parameter set of the precast concrete beam manufacturing process, and compare it with the expected manufacturing quality compliance threshold; a process adjustment module, used to control and adjust the expected manufacturing process parameters of the precast concrete beam if the expected manufacturing quality compliance index of the precast concrete beam is less than or equal to the expected manufacturing quality compliance threshold, and apply the expected manufacturing process parameters of the precast concrete beam to actual construction if the expected manufacturing quality compliance index of the precast concrete beam is greater than the expected manufacturing quality compliance threshold; a management feedback module, used to collect pollution parameters of the actual manufacturing process of the precast concrete beam, determine the environmental pollution index of the actual manufacturing process of the precast concrete beam, and thereby perform management feedback on the actual manufacturing process of the precast concrete beam.

[0012] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0013] (1) The present invention provides a quality control method and system for precast concrete beams, which accurately obtain and analyze the environmental parameters of the expected manufacturing process of precast concrete beams, and then individually match the optimal compliance parameter set of the precast concrete beam manufacturing process. By conducting in-depth comprehensive analysis of the expected manufacturing process parameters of the precast concrete beams and the compliance parameter set, the expected manufacturing quality compliance level of the precast concrete beams can be accurately identified, and targeted adjustments and optimizations can be made accordingly to ensure that the precast concrete beams produced are of high quality. In addition, pollution parameters in the actual manufacturing process of precast concrete beams are collected and analyzed, and manufacturing pollution is comprehensively managed, thereby ensuring accurate and efficient production while also ensuring the greenness of the environment. This quality control method not only improves the production efficiency and product quality of precast concrete beams, but also effectively reduces environmental pollution in the production process, achieving a win-win situation of economic and ecological benefits.

[0014] (2) The present invention can deeply analyze and accurately derive the environmental compliance factors of the expected manufacturing process of precast concrete beams by comprehensively acquiring the environmental parameters of the expected manufacturing process of precast concrete beams. This step lays a solid scientific basis for the subsequent manufacturing process and ensures that the manufacturing process can closely fit the current manufacturing environment, thereby enhancing the manufacturing stability and durability of precast concrete beams and further improving the quality of precast concrete beams.

[0015] (3) The present invention can accurately determine the environmental pollution index of precast concrete beams by carefully collecting pollution parameters in the actual manufacturing process of precast concrete beams. This measure provides timely and accurate management feedback for the actual manufacturing process of precast concrete beams. With the help of this feedback mechanism, environmental pollution problems in the manufacturing of precast concrete beams can be quickly identified and solved, effectively reducing the risk of corrosion of precast concrete beams caused by environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the method steps of the present invention;

[0018] Figure 2 It is a schematic diagram of system module connection of the present invention;

[0019] Figure 3 It is a schematic diagram of the vibration amplitude curve of the precast concrete beam involved in the present invention.

[0020] Figure numerals: 1. Various detection position points. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Reference Figure 1 As shown, the first aspect of the present invention provides a quality control method for precast concrete beams, including: step one, obtaining environmental parameters belonging to the expected manufacturing process of precast concrete beams, analyzing the environmental compliance factors of the expected manufacturing process of precast concrete beams, and matching a compliance parameter set of the precast concrete beam manufacturing process according to the environmental compliance factors of the expected manufacturing process of precast concrete beams.

[0023] In a specific embodiment, the present invention can deeply analyze and accurately derive the environmental compliance factors of the expected manufacturing process of precast concrete beams by comprehensively acquiring the environmental parameters of the expected manufacturing process of precast concrete beams. This step lays a solid scientific basis for the subsequent manufacturing process and ensures that the manufacturing process can closely fit the current manufacturing environment, thereby enhancing the manufacturing stability and durability of the precast concrete beams and further improving the quality of the precast concrete beams.

[0024] Specifically, the matching of the compliance parameter set of the concrete precast beam manufacturing process is as follows: matching the environmental compliance factor of the expected manufacturing process of the concrete precast beam with the compliance parameter set of the concrete precast beam manufacturing process corresponding to each environmental compliance factor interval stored in the control database, thereby obtaining the compliance parameter set of the concrete precast beam manufacturing process corresponding to the environmental compliance factor of the expected manufacturing process of the concrete precast beam. In an example embodiment, assuming that the environmental compliance factor of the expected manufacturing process of a certain concrete precast beam belongs to a certain environmental compliance factor interval stored in the control database, the compliance parameter set of the concrete precast beam manufacturing process corresponding to the certain environmental compliance factor interval includes: the reference water-cement ratio of the concrete is 0.6, the reference average prestress of sample test location area 1 is 3000 Newtons, the reference average prestress of sample test location area 2 is 4500 Newtons, the reference average prestress of sample test location area 3 is 3550 Newtons, the concrete strength grade is 5, etc.; then the concrete precast beam manufacturing process compliance parameter set corresponding to the environmental compliance factor of the expected manufacturing process of the concrete precast beam includes: the concrete reference water-cement ratio is 0.6, the reference average prestress of sample test location area 1 is 3000 Newtons, the reference average prestress of sample test location area 2 is 4500 Newtons, the reference average prestress of sample test location area 3 is 3550 Newtons, the concrete strength grade is 5, etc.

[0025] Specifically, the environmental compliance factors of the expected manufacturing process of the precast concrete beams are analyzed by the following specific methods:

[0026]

[0027] Where, ECF represents the environmental compliance factor of the expected manufacturing process of precast concrete beams, PWR represents the average pH value of the environment in which the expected manufacturing process of precast concrete beams is located during the environmental monitoring period, APD represents the average temperature of the environment in which the expected manufacturing process of precast concrete beams is located during the environmental monitoring period, and CHG represents the average temperature of the environment in which the expected manufacturing process of precast concrete beams is located during the environmental monitoring period. d It represents the average concentration of the dth harmful gas in the environment of the expected manufacturing process of precast concrete beams during the environmental monitoring period, ΔPWR represents the average pH reference value of the use water preset in the control database, ΔAPD represents the average temperature reference value preset in the control database, F represents the environmental compliance ratio factor corresponding to the unit value of the average concentration of harmful gases preset in the control database, e is a natural constant, d is the number of various harmful gases, d={1,2,3,...,s}, and s is the total number of harmful gas types.

[0028] It needs to be explained that in the expected manufacturing process of precast concrete beams, the environmental parameters within the environmental monitoring cycle have an important impact on product quality and compliance. Specifically, the average pH of the water used reflects the basic chemical properties of the manufacturing environment. If the average pH of the water used deviates significantly from the reference value of the average pH of the water used, the equilibrium state of various chemical components in the concrete will be destroyed during the concrete mixing process, resulting in abnormal chemical reactions inside the concrete, thereby affecting its physical and chemical properties. This will not only significantly slow down the solidification process of the concrete, making it difficult for the concrete to reach the expected strength, but will also seriously weaken its durability, making the concrete in It is more susceptible to erosion and damage during long-term use; at the same time, the average temperature is directly related to the curing rate and strength development of concrete materials, and the average temperature affects the solubility of harmful gases in water. If the average temperature deviates significantly from the average temperature reference value, more harmful gases will be dissolved in the water used, thereby aggravating the deviation of the pH value of the water used. In addition, the average concentration of harmful gases as a key indicator may also affect the internal structure of precast concrete beams through penetration or chemical reactions. Therefore, the above parameters together constitute the environmental background of the manufacturing process of precast concrete beams, which in turn have a negative impact on the production quality and environmental compliance of precast concrete beams.

[0029] The above-mentioned reference value of the average pH value of the working water represents the reference value of the average pH value of the working water in the environment where the concrete precast beam is expected to be manufactured during the environmental monitoring period; the above-mentioned average temperature reference value represents the reference value of the average temperature of the environment where the concrete precast beam is expected to be manufactured during the environmental monitoring period.

[0030] The environmental compliance ratio factor corresponding to the above-mentioned unit value of the average concentration of harmful gases represents the numerical value of the influence of the unit value of the average concentration of harmful gases on the environmental compliance factor of the expected manufacturing process of precast concrete beams. The corresponding relationship of the ratio factors is stored in the control database. For example, the average concentration of harmful gases can be input into the control database, and the control database automatically matches the environmental compliance ratio factor corresponding to the unit value of the average concentration of harmful gases according to the corresponding relationship of the preset ratio factors.

[0031] In this example embodiment, the change table of the environmental compliance factors and their corresponding parameters in the expected manufacturing process of the above-mentioned precast concrete beams is shown in Table 1:

[0032] Table 1 Changes in environmental compliance factors and their corresponding parameters during the expected manufacturing process of precast concrete beams

[0033]

[0034] In this example embodiment, the average pH reference value of the water is set to pH7.2, the average temperature reference value is set to 27 degrees Celsius, and the value of the environmental compliance ratio factor corresponding to the unit value of the average concentration of harmful gases is set to 0.95. It can be seen from Table 1 that when the average pH of the water deviates significantly from the average pH reference value of the water (such as pH5.3 in Table 1 significantly deviates from pH7.2), it indicates that more harmful gases are incorporated into the water, and the average concentrations of various harmful gases are at a relatively high level, such as 0.002 mol per liter, 0.003 mol per liter and 0.009 mol per liter respectively. At this time, the temperature accelerates the integration of harmful gases into the water, and the average temperature also significantly deviates from the average temperature reference value (such as 35 degrees Celsius in Table 1 significantly deviates from 27 degrees Celsius), which has a comprehensive effect on the degree of environmental compliance, resulting in a low degree of environmental compliance, which is specifically manifested in that the environmental compliance factor is at a low level of 81%.

[0035] Furthermore, the environmental compliance factors of the expected manufacturing process of precast concrete beams are analyzed, and the specific analysis process is as follows: the environmental parameters of the expected manufacturing process of precast concrete beams include the average pH value of the water used in the environment of the expected manufacturing process of precast concrete beams during the environmental monitoring period, the average temperature of the environment of the expected manufacturing process of precast concrete beams during the environmental monitoring period, and the average concentration of various harmful gases in the environment of the expected manufacturing process of precast concrete beams during the environmental monitoring period; the above-mentioned environmental monitoring period refers to the time period for monitoring the environment of precast concrete beam manufacturing, and the specific duration is determined by the project analysis engineer; the above-mentioned precast concrete beams The average pH value of the water used in the environment in which the concrete precast beam manufacturing process is expected to be located during the environmental monitoring period refers to the average value obtained by conducting pH tests on the water used in the environment during the environmental monitoring period in which the concrete precast beam manufacturing process is expected to be located. pH is an indicator to measure the acidity and alkalinity of a solution. In the manufacturing process of concrete precast beams, the pH value of the water used may affect the performance of concrete materials, such as the hydration reaction rate of cement, the setting time and strength development of concrete, etc. Specifically, the pH value of the water used in each sample collected during the environmental monitoring period can be measured by a pH meter and averaged, and the processing result is marked as the pH value of the concrete precast beam. the average pH value of the water used in the environment of the expected manufacturing process of the beam within the environmental monitoring period; the average temperature of the environment of the expected manufacturing process of the concrete precast beam within the environmental monitoring period refers to the average value obtained by continuously monitoring the temperature of the environment within the environmental monitoring period of the expected manufacturing process of the concrete precast beam, which can be achieved by integrating the real-time temperatures detected by the temperature sensors installed in the concrete precast beam manufacturing environment within the environmental monitoring period and performing average processing, and the processing result is the average temperature of the environment of the expected manufacturing process of the concrete precast beam within the environmental monitoring period; the average concentration of various harmful gases in the environment of the expected manufacturing process of the concrete precast beam within the environmental monitoring period refers to the average concentration value obtained by continuously sampling and analyzing various harmful gases existing in the environment within the environmental monitoring period of the expected manufacturing process of the concrete precast beam, which can be achieved by sampling and collecting the environmental gases within the environmental monitoring period to obtain the environmental gases of each sample, using a gas detector to test the gas concentration contained in the environmental gases of each sample, and performing average processing on the same harmful gas concentration to obtain the average concentration of each harmful gas, wherein the harmful gas refers to the gas that is corrosive to the concrete precast beam, specifically including sulfur dioxide, hydrogen chloride, hydrogen sulfide and nitrogen oxides.

[0036] The environmental compliance factor of the expected manufacturing process of precast concrete beams is obtained by comprehensively analyzing the average pH of the water in use during the environmental monitoring period, the average temperature of the environment in which the expected manufacturing process of precast concrete beams is located during the environmental monitoring period, and the average concentration of various harmful gases in the environment in which the expected manufacturing process of precast concrete beams is located during the environmental monitoring period. The environmental compliance factor of the expected manufacturing process of precast concrete beams refers to the numerical value of the environmental compliance degree of the expected manufacturing process of precast concrete beams.

[0037] Step 2: Collect the expected manufacturing process parameters of precast concrete beams, and combine them with the compliance parameter set of the precast concrete beam manufacturing process to evaluate the expected manufacturing quality compliance index of the precast concrete beams, and compare it with the expected manufacturing quality compliance threshold.

[0038] The above-mentioned expected manufacturing quality compliance threshold value represents the minimum value of the reasonable range of the expected manufacturing quality compliance index of the precast concrete beam, which is extracted from the control database.

[0039] Specifically, the evaluation process of the expected manufacturing quality compliance index of the precast concrete beam is as follows:

[0040] The expected manufacturing process parameters of the precast concrete beam include the concrete water-cement ratio of the precast concrete beam, the vibration amplitude curve of the precast concrete beam, and the prestress of each sample detection position point in each sample detection position area of ​​the precast concrete beam; the concrete water-cement ratio of the above-mentioned precast concrete beam refers to the ratio of the mass of water in concrete to the mass of cement, which is an important parameter in concrete mix design, directly affects the strength, durability and workability of concrete, and can be extracted from the construction planning plan.

[0041] The vibration amplitude of each detection position point is located and extracted from the vibration amplitude curve of the precast concrete beam, and the vibration amplitude of each detection position point is processed by standard deviation, and the processing result is marked as the discrete value of the vibration amplitude of the precast concrete beam; the discrete value of the vibration amplitude of the precast concrete beam refers to the numerical value of the discrete degree of the vibration amplitude of the precast concrete beam during the vibration process; the vibration amplitude curve of the precast concrete beam refers to the graphical representation of the vibration amplitude changing with the monitoring time point obtained by monitoring the vibration link during the manufacturing process of the precast concrete beam, and the vibration amplitude curve of the precast concrete beam is obtained by monitoring the vibration link during the manufacturing process of the precast concrete beam. Building Information Modeling (BIM) technology simulates the expected manufacturing process of precast concrete beams. By integrating the information of design, construction, operation and maintenance in the construction planning scheme, a digital three-dimensional model is constructed, which accurately reflects the structure, size, material and manufacturing process of precast concrete beams. On this basis, the building information modeling software can simulate the entire manufacturing process of precast concrete beams from raw material preparation, formwork installation, steel bar binding to concrete pouring, vibration and maintenance. In the simulation of the vibration link, the building information modeling technology uses a dynamic simulation algorithm to calculate the vibration parameters (such as the type, power, frequency and vibration time of the vibration equipment) according to the preset vibration parameters. etc.), as well as the specific shape, size and material properties of the precast concrete beam, dynamically simulate the vibration behavior of the vibrating rod inside or on the surface of the concrete during the vibration process. As the simulation proceeds, the building information model software will record and calculate the amplitude of the vibrating rod at different positions and detection time points in real time, average the vibration amplitudes at different positions, and obtain the vibration amplitudes at different detection time points. The building information model software denoises the vibration amplitudes at different detection time points and connects them into a complete vibration amplitude curve, which is the vibration amplitude curve of the precast concrete beam. In an exemplary embodiment, the vibration amplitude curve of the precast concrete beam is as follows: Figure 3 As shown, the relationship between the vibration amplitude and the monitoring time point is displayed. The horizontal axis is the detection time point, the unit is minute, and the vertical axis is the vibration amplitude, the unit is centimeter. The vibration amplitude of each detection position point 1 is processed by standard deviation, and the processing result is marked as the discrete value of the vibration amplitude of the concrete precast beam, where the detection position point is a point randomly arranged on the vibration amplitude curve.

[0042] It needs to be explained that building information modeling technology is a design and management tool based on digital modeling. It integrates various relevant information of construction projects (such as data from the design, construction, operation and maintenance stages) and integrates them into a three-dimensional model, thereby achieving comprehensive management and optimization of construction projects. This model not only includes the physical characteristics and spatial relationships of the building, but also non-geometric information such as the building's functions and performance.

[0043] The prestress at each sample detection position point in each sample detection position area belonging to the precast concrete beam is averaged, and the processing result is marked as the average prestress at each sample detection position area belonging to the precast concrete beam; the prestress at each sample detection position point in each sample detection position area belonging to the precast concrete beam refers to the prestress value measured at different sample detection position points of the precast concrete beam. The prestress is the pressure pre-applied to the structure during construction in order to improve the performance of the structure during use. For the precast concrete beam, the prestress can improve its bearing capacity, delay the time for the appearance of cracks, and increase the durability of the component. It can be extracted from the construction planning plan, wherein each sample detection position area and each sample detection position point are formulated by the manufacturing planning engineer based on the design drawings, technical requirements, quality standards, beam size, shape and material properties of the precast concrete beam.

[0044] The reference water-cement ratio of concrete and the reference average prestress of each sample test position area are extracted from the compliance parameter set of the concrete precast beam manufacturing process; the above-mentioned reference water-cement ratio of concrete represents the reference value of the concrete water-cement ratio of the concrete precast beam; the above-mentioned reference average prestress of each sample test position area represents the reference value corresponding to the average prestress of each sample test position area of ​​the concrete precast beam.

[0045] The expected manufacturing quality compliance index of the precast concrete beam is obtained by comprehensively considering the environmental compliance factor of the expected manufacturing process of the precast concrete beam, the concrete water-cement ratio of the precast concrete beam, the discrete value of the vibration amplitude of the precast concrete beam, the average prestress of each sample detection position area of ​​the precast concrete beam, the reference water-cement ratio of concrete, and the reference average prestress of each sample detection position area. In this embodiment, the expected manufacturing quality compliance index of the precast concrete beam represents the numerical value of the expected manufacturing quality compliance degree of the precast concrete beam. The specific evaluation method of the expected manufacturing quality compliance index of the precast concrete beam is as follows:

[0046]

[0047] Where, EQCI represents the expected manufacturing quality compliance index of precast concrete beams, ECF represents the environmental compliance factor of the expected manufacturing process of precast concrete beams, WOC represents the concrete water-cement ratio of precast concrete beams, VA represents the discrete value of the vibration amplitude of precast concrete beams, and MOP represents the expected environmental compliance factor of the manufacturing process of precast concrete beams. g represents the average prestress of the g-th sample test location area of ​​the concrete precast beam, W represents the specific gravity factor corresponding to the environmental compliance factor, ΔWOC represents the reference water-cement ratio of concrete, and ΔMOP grepresents the reference average prestress of the g-th sample test position area, H represents the expected manufacturing quality compliance index ratio factor corresponding to the unit value of the discrete value of the vibration amplitude preset in the control database, e is a natural constant, g is the number of each sample test position area, g = {1, 2, 3, ..., j}, j is the total number of sample test position areas.

[0048] It needs to be explained that the environmental compliance of the expected manufacturing process of precast concrete beams is a prerequisite for ensuring the expected manufacturing quality compliance of precast concrete beams. Therefore, the environmental compliance factor of the expected manufacturing process of precast concrete beams is put into the expected manufacturing quality compliance index of precast concrete beams for comprehensive analysis. An accurate and reasonable water-cement ratio can enable concrete to exhibit optimal physical and chemical properties and ensure that the concrete achieves the expected strength, durability and working performance. However, when the water-cement ratio of concrete deviates significantly from its reference value, the overall performance of the concrete will drop sharply, resulting in obvious quality problems during the pouring process. This deviation in the water-cement ratio not only directly weakens the strength of the concrete, but also greatly reduces the uniformity of the concrete during the pouring process. Vibration is the core link in concrete construction. The effect depends to a large extent on the uniformity of concrete. When the water-cement ratio of concrete deviates from its reference value, the concrete will become difficult to vibrate uniformly during the vibration process, and the discrete degree of the vibration amplitude will increase significantly, resulting in defects such as voids and bubbles inside the concrete. These defects not only reduce the density and strength of the concrete, but also seriously affect the mechanical properties and durability of the precast concrete beam. Ultimately, these internal defects will further cause the average prestress of the precast concrete beam in the area of ​​the sample detection position to deviate significantly from its reference value. If the average prestress deviates significantly from its reference value, it will cause premature cracks or damage to the precast concrete beam during the stress process, seriously affecting the performance of the precast concrete beam, thereby causing a profound adverse effect on the overall quality and performance of the precast concrete beam.

[0049] The weighting factor corresponding to the above-mentioned environmental compliance factor represents the proportion of the environmental compliance factor of the expected manufacturing process of the precast concrete beam to the expected manufacturing quality compliance index of the precast concrete beam. The corresponding relationship of the weighting factors is stored in the control database. For example, the environmental compliance factor of the expected manufacturing process of the precast concrete beam can be input into the control database. The control database automatically matches the weighting factor corresponding to the environmental compliance factor according to the corresponding relationship of the preset weighting factors.

[0050] The expected manufacturing quality compliance index ratio factor corresponding to the above-mentioned discrete value unit value of the vibration amplitude represents the numerical value of the influence of the discrete value unit value of the vibration amplitude on the expected manufacturing quality compliance index of the precast concrete beam. The corresponding relationship of the ratio factors is stored in the control database. For example, the discrete value of the vibration amplitude can be input into the control database, and the control database automatically matches the expected manufacturing quality compliance index ratio factor corresponding to the discrete value unit value of the vibration amplitude according to the corresponding relationship of the preset ratio factors.

[0051] Step 3: If the expected manufacturing quality compliance index of the precast concrete beam is less than or equal to the expected manufacturing quality compliance threshold, the expected manufacturing process parameters of the precast concrete beam are controlled and adjusted; if the expected manufacturing quality compliance index of the precast concrete beam is greater than the expected manufacturing quality compliance threshold, the expected manufacturing process parameters of the precast concrete beam are applied to actual construction.

[0052] Specifically, the expected manufacturing process parameters of the precast concrete beam are controlled and adjusted, and the specific control and adjustment process is:

[0053] The expected manufacturing quality compliance threshold and the expected manufacturing quality compliance index of the precast concrete beam are subjected to difference processing, and the processing result is marked as the expected manufacturing quality compliance index deviation value of the precast concrete beam. According to the expected manufacturing quality compliance index deviation value of the precast concrete beam, an adjustment set of expected manufacturing process parameters is matched; the control database stores the adjustment set of expected manufacturing process parameters corresponding to each expected manufacturing quality compliance index deviation value interval. In an example embodiment, assuming that the expected manufacturing quality compliance index deviation value of a precast concrete beam is Z, which belongs to the expected manufacturing quality compliance index deviation value interval [Z-12%, Z+28%] stored in the control database, the adjustment set of expected manufacturing process parameters corresponding to the expected manufacturing quality compliance index deviation value interval [Z-12%, Z+28%] includes: increasing the amount of cement to 1.2 times the expected amount, increasing the vibration frequency of the vibrator to 1.5 times the expected vibration frequency, reducing the vibration amplitude of the vibrator to 0.8 times the expected vibration amplitude, and increasing the use of intelligent grouting equipment, using the intelligent grouting equipment to push cement slurry from the other side of the hole The grout is poured into the end until the entire channel is filled, and a positive pressure of 0.7 MPa is applied to improve the fullness and density of the prestressed channel grouting. The box beam demoulding time is advanced by 2 hours compared to the expected demoulding time. The concrete water-cement ratio of the precast concrete beam is adjusted to the concrete reference water-cement ratio. The average prestress of each detection position area is adjusted to the corresponding reference average prestress. The adjustment set of the expected manufacturing process parameters obtained by matching in this embodiment includes: increasing the amount of cement to 1.2 times the expected amount, increasing the vibration frequency of the vibrator to the expected vibration frequency The rate is 1.5 times that of the expected rate, the vibration amplitude of the vibrator is reduced to 0.8 times of the expected vibration amplitude, and the intelligent grouting equipment is used to inject cement slurry from the other end of the channel until the entire channel is filled, and a positive pressure of 0.7 MPa is applied to improve the fullness and density of the prestressed channel grouting. The box girder demolding time is advanced by 2 hours compared with the expected demolding time, the concrete water-cement ratio of the concrete precast beam is adjusted to the concrete reference water-cement ratio, and the average prestress of each test position area is adjusted to the corresponding reference average prestress.

[0054] The expected manufacturing process parameters of the precast concrete beam are updated according to the adjustment set of the expected manufacturing process parameters, and the expected manufacturing quality compliance index of the precast concrete beam is re-evaluated, thereby completing the control adjustment of the expected manufacturing process parameters of the precast concrete beam; it should be explained that the adjustment set of the expected manufacturing process parameters is obtained by personalized matching according to the deviation value of the expected manufacturing quality compliance index of the precast concrete beam, and the adjustment set is strictly tested, verified and optimized by the project engineers to ensure that they can effectively improve the manufacturing quality of the precast concrete beam, so the re-evaluation of the expected manufacturing quality compliance index of the precast concrete beam can meet the requirement of being greater than the expected manufacturing quality compliance threshold; the above-mentioned updating of the expected manufacturing process parameters of the precast concrete beam according to the adjustment set of the expected manufacturing process parameters, for example, the cement consumption in the expected manufacturing process parameters of the precast concrete beam is X tons, and the adjustment set includes increasing the cement consumption to 1.2 times the expected consumption, then the cement consumption in the expected manufacturing process parameters of the precast concrete beam is updated to 1.2X tons, and the updating process of other parameters is consistent with the updating process of cement consumption.

[0055] Step 4: Collect pollution parameters of the actual manufacturing process of precast concrete beams, determine the environmental pollution index of the actual manufacturing process of precast concrete beams, and provide management feedback on the actual manufacturing process of precast concrete beams.

[0056] In a specific embodiment, the present invention can accurately determine the environmental pollution index of precast concrete beams by carefully collecting pollution parameters in the actual manufacturing process of precast concrete beams. This measure provides timely and accurate management feedback for the actual manufacturing process of precast concrete beams. With the help of this feedback mechanism, environmental pollution problems in the manufacture of precast concrete beams can be quickly identified and solved, effectively reducing the risks of corrosion of precast concrete beams caused by environmental pollution.

[0057] Specifically, the management feedback of the actual manufacturing process of the precast concrete beam is analyzed as follows:

[0058] The environmental pollution index of the actual manufacturing process of the precast concrete beam is compared with the environmental pollution threshold. If the environmental pollution index of the actual manufacturing process of the precast concrete beam is greater than the environmental pollution threshold, an environmental pollution management set is generated according to the environmental pollution index of the actual manufacturing process of the precast concrete beam, and management feedback is performed on the actual manufacturing process of the precast concrete beam based on the environmental pollution management set; the above environmental pollution threshold represents the minimum value of the reasonable range of the environmental pollution index of the actual manufacturing process of the precast concrete beam, which is extracted from the control database, and the control database stores the pollution level corresponding to each environmental pollution index interval. In an example embodiment, it is assumed that the environmental pollution index of the actual manufacturing process of the precast concrete beam is HM, which belongs to the environmental pollution index interval [HM-19%, HM+21%], and the pollution level corresponding to the environmental pollution index interval [HM-19%, HM+21%] is level three. The environmental pollution management set corresponding to the pollution level three is queried from the control database, which includes: replacing the catalyst in the catalytic oxidation device for exhaust gas treatment to ensure that the initial activity of the catalyst is higher than 95%, and when the activity of the catalyst is lower than 80%, the catalyst needs to be replaced, and the catalytic oxidation reaction control The temperature range of the reaction is 300 to 400 degrees Celsius, the oxygen concentration during the reaction is controlled within the range of 5% to 15%, G tons of coagulant are added to the sedimentation tank for wastewater treatment, and the sedimentation time is adjusted to 2 hours. The environmental pollution management set in this embodiment includes: replacing the catalyst in the catalytic oxidation device for waste gas treatment to ensure that the initial activity of the catalyst is higher than 95%, and when the activity of the catalyst is lower than 80%, the catalyst needs to be replaced, the catalytic oxidation reaction is controlled within the temperature range of 300 to 400 degrees Celsius, and the oxygen concentration during the reaction is controlled within the range of 5% to 15%. The rate of increase or decrease in the rate of precipitation is controlled within the range of 5% to 15%, G tons of coagulant will be added to the sedimentation tank for wastewater treatment, and the sedimentation time will be adjusted to 2 hours; based on the environmental pollution management set, the environmental monitoring project team manages the actual manufacturing process of precast concrete beams according to the environmental pollution management set and actual conditions. If the management is carried out directly according to the environmental pollution management set, there is no need to update the environmental pollution management set. If adjustments are made on the basis of the environmental pollution management set, the environmental monitoring project team needs to update and adjust the environmental pollution management set in the control database, thereby completing the management feedback on the actual manufacturing process of precast concrete beams.

[0059] If the environmental pollution index of the actual manufacturing process of the precast concrete beam is less than or equal to the environmental pollution threshold, the pollution parameters of the actual manufacturing process of the precast concrete beam are continuously monitored and collected.

[0060] Specifically, the pollution parameters of the actual manufacturing process of the precast concrete beam include wastewater pollution parameters of the actual manufacturing process of the precast concrete beam and waste gas pollution parameters of the actual manufacturing process of the precast concrete beam. Further, the environmental pollution index of the actual manufacturing process of the precast concrete beam is determined by the following specific determination process:

[0061] The wastewater pollution parameters of the actual manufacturing process of the precast concrete beams include the average pH of the wastewater belonging to the actual manufacturing process of the precast concrete beams during the pollution monitoring period and the average concentration of various pollutants in the wastewater belonging to the actual manufacturing process of the precast concrete beams during the pollution monitoring period; the above-mentioned pollution monitoring period refers to the time period for monitoring the pollution of the actual manufacturing process of the precast concrete beams, and the specific duration is determined by the environmental regulatory department; the average pH of the wastewater belonging to the actual manufacturing process of the precast concrete beams during the pollution monitoring period refers to the average value obtained by conducting pH testing on the wastewater in the environment during the pollution monitoring period of the actual manufacturing process of the precast concrete beams, and the acquisition method is the same as the environment to which the expected manufacturing process of the precast concrete beams belongs. The method for obtaining the average pH value of the water used during the environmental monitoring period is consistent; the average concentration of various pollutants in the wastewater belonging to the actual manufacturing process of the above-mentioned precast concrete beams during the pollution monitoring period refers to the average value of the concentration of various pollutants tested in the wastewater during the pollution monitoring period of the actual manufacturing process of the precast concrete beams. Various wastewater samples can be collected during the pollution monitoring period, and each wastewater sample can be measured by a gas chromatograph or other water quality monitoring instrument. The concentration of pollutants of the same type is averaged to obtain the average concentration of various pollutants, where pollutants refer to compounds that are corrosive to precast concrete beams, specifically including sulfide types (such as sulfurous acid and sulfuric acid) and nitrogen oxide types (mainly in the form of nitrites and nitrates).

[0062] The waste gas pollution parameters of the actual manufacturing process of the precast concrete beams include the average concentrations of various types of waste gases in the actual manufacturing process of the precast concrete beams during the pollution monitoring period; the average concentrations of various types of waste gases in the actual manufacturing process of the precast concrete beams during the pollution monitoring period have the same meaning and acquisition method as the average concentrations of various harmful gases in the environment to which the expected manufacturing process of the precast concrete beams belongs during the environmental monitoring period, wherein the various types of waste gases specifically include sulfide types (such as sulfur dioxide, etc.) and volatile organic compound types (such as nitrogen-containing organic compounds), etc.

[0063] Comprehensively analyze the expected manufacturing quality compliance index of the precast concrete beam, the average pH of the wastewater in the actual manufacturing process of the precast concrete beam during the pollution monitoring period, the average concentration of various pollutants in the wastewater in the actual manufacturing process of the precast concrete beam during the pollution monitoring period, and the average concentration of various waste gases in the actual manufacturing process of the precast concrete beam during the pollution monitoring period to obtain the environmental pollution index of the actual manufacturing process of the precast concrete beam. In this embodiment, the environmental pollution index of the actual manufacturing process of the precast concrete beam refers to the value of the environmental pollution degree of the actual manufacturing process of the precast concrete beam. The specific determination method of the environmental pollution index of the actual manufacturing process of the precast concrete beam is as follows:

[0064]

[0065] Where PIE represents the environmental pollution index of the actual manufacturing process of precast concrete beams, EQCI represents the expected manufacturing quality compliance index of precast concrete beams, JD represents the average pH value of the wastewater in the actual manufacturing process of precast concrete beams during the pollution monitoring period, ΔJD represents the reference average pH value of the wastewater preset in the control database, and WT represents the environmental pollution index of the actual manufacturing process of precast concrete beams. c It represents the average concentration of Class C pollutants in the wastewater of the actual manufacturing process of precast concrete beams during the pollution monitoring period. m It represents the average concentration of the mth type of exhaust gas in the actual manufacturing process of precast concrete beams during the pollution monitoring period, Y represents the weighting factor corresponding to the expected manufacturing quality compliance index preset in the control database, nu1 represents the environmental pollution index proportional factor corresponding to the unit value of the average concentration of pollutants preset in the control database, nu2 represents the environmental pollution index proportional factor corresponding to the unit value of the average concentration of exhaust gas preset in the control database, c is the number of each type of pollutant, c = {1,2,3,...,k}, k is the total number of pollutant types, m is the number of each type of exhaust gas, m = {1,2,3,...,p}, p is the total number of exhaust gas types.

[0066] The above-mentioned reference average pH value of wastewater represents the reference value of the average pH value of wastewater belonging to the actual manufacturing process of precast concrete beams during the pollution monitoring period.

[0067] The weighting factor corresponding to the above-mentioned expected manufacturing quality compliance index represents the proportion of the expected manufacturing quality compliance index of the precast concrete beam to the environmental pollution index of the actual manufacturing process of the precast concrete beam. The corresponding relationship of the weighting factors is stored in the control database. For example, the expected manufacturing quality compliance index of the precast concrete beam can be input into the control database, and the control database automatically matches the weighting factor corresponding to the expected manufacturing quality compliance index according to the corresponding relationship of the preset weighting factors.

[0068] The environmental pollution index proportional factor corresponding to the above-mentioned unit value of the average pollutant concentration represents the numerical value of the influence of the unit value of the average pollutant concentration on the environmental pollution index of the actual manufacturing process of the precast concrete beam. The corresponding relationship of the proportional factors is stored in the control database. For example, the average pollutant concentration can be input into the control database, and the control database automatically matches the environmental pollution index proportional factor corresponding to the unit value of the average pollutant concentration according to the corresponding relationship of the preset proportional factors.

[0069] The environmental pollution index proportional factor corresponding to the above-mentioned unit value of the average exhaust gas concentration represents the degree of influence of the unit value of the average exhaust gas concentration on the environmental pollution index of the actual manufacturing process of precast concrete beams. The corresponding relationship of the proportional factors is stored in the control database. For example, the average exhaust gas concentration can be input into the control database, and the control database automatically matches the environmental pollution index proportional factor corresponding to the unit value of the average exhaust gas concentration according to the corresponding relationship of the preset proportional factors.

[0070] It needs to be explained that ensuring manufacturing quality compliance is the basic condition for maintaining the degree of environmental pollution at a low level. Therefore, the expected manufacturing quality compliance index of precast concrete beams is integrated into the environmental pollution index of the actual manufacturing process of precast concrete beams for comprehensive analysis. If the average pH value of the wastewater from the actual manufacturing process of precast concrete beams deviates significantly from the reference average pH value of the wastewater during the pollution monitoring period, it indicates a high degree of pollution, which further indicates that the average concentration of pollutants in the wastewater is high and the concentration of pollutants in the waste gas is high. The pollutants in the waste gas may dissolve in the wastewater, further aggravating the deviation of the pH value of the wastewater, forming a vicious circle. In addition, the wastewater will seep into the soil, aggravating the deviation of the pH value of the water used relative to its reference value, thereby causing additional damage to the mixing of concrete and other processes. At the same time, the harmful components in the exhaust gas may also react chemically with the elements in the precast concrete beams, causing corrosion and cracking of the precast concrete beams. Therefore, it is necessary to comprehensively analyze the above parameters to obtain the degree of environmental pollution in the actual manufacturing process of the precast concrete beams, so as to carry out effective management and control. It can not only significantly reduce the direct harm of wastewater and exhaust gas to precast concrete beams, such as avoiding quality problems such as concrete corrosion and strength reduction, but also promote the rational use and circulation of resources, reduce energy consumption and emissions in the manufacturing process, and more importantly, this comprehensive evaluation method helps to timely discover and solve environmental pollution problems, reduce the migration and accumulation of pollutants, thereby protecting natural ecosystems such as soil and water sources, and providing solid guarantees for the green development of the precast concrete beam manufacturing industry.

[0071] In a specific embodiment, the present invention provides a quality control method for precast concrete beams, which accurately obtains and analyzes the environmental parameters of the expected manufacturing process of precast concrete beams, and then matches the optimal compliance parameter set of the precast concrete beam manufacturing process in a personalized manner. By conducting in-depth comprehensive analysis of the expected manufacturing process parameters of the precast concrete beams and the compliance parameter set, the expected manufacturing quality compliance level of the precast concrete beams can be accurately identified, and targeted adjustments and optimizations can be made accordingly to ensure that the precast concrete beams produced are of high quality. In addition, pollution parameters in the actual manufacturing process of precast concrete beams are collected and analyzed, and comprehensive management of manufacturing pollution is implemented, thereby ensuring green and environmentally friendly environment while ensuring accurate and efficient production. This quality control method not only improves the production efficiency and product quality of precast concrete beams, but also effectively reduces environmental pollution in the production process, achieving a win-win situation of economic and ecological benefits.

[0072] Reference Figure 2 As shown, the second aspect of the present invention provides a system using the quality control method of a precast concrete beam as described above, comprising: an environmental analysis module, a quality assessment module, a process adjustment module and a management feedback module.

[0073] Reference Figure 2 As shown, the second aspect of the present invention provides a system for applying a quality control method for precast concrete beams as described, and also includes a control database, wherein the control database is used to store the reference value of the average pH value of water, the average temperature reference value, the environmental compliance ratio factor corresponding to the unit value of the average concentration of harmful gases, the concrete precast beam manufacturing process compliance parameter set corresponding to each environmental compliance factor interval, the corresponding relationship of the ratio factor, the expected manufacturing quality compliance threshold, the expected manufacturing quality compliance index ratio factor corresponding to the unit value of the discrete value of the vibration amplitude, the corresponding relationship of the weight factor, the adjustment set of expected manufacturing process parameters corresponding to each expected manufacturing quality compliance index deviation value interval, the environmental pollution threshold, the pollution level corresponding to each environmental pollution index interval, the reference average pH value of wastewater, the environmental pollution index proportional factor corresponding to the unit value of the average pollutant concentration, the environmental pollution index proportional factor corresponding to the unit value of the average exhaust gas concentration, the weight factor corresponding to the expected manufacturing quality compliance index, and the corresponding relationship of the proportional factor.

[0074] The environmental analysis module is connected to the quality assessment module, the quality assessment module is connected to the process adjustment module, the process adjustment module is connected to the management feedback module, and the environmental analysis module, the quality assessment module, the process adjustment module and the management feedback module are all connected to the control database.

[0075] The environmental analysis module is used to obtain environmental parameters of the expected manufacturing process of precast concrete beams, analyze the environmental compliance factors of the expected manufacturing process of precast concrete beams, and match the compliance parameter set of the precast concrete beam manufacturing process according to the environmental compliance factors of the expected manufacturing process of precast concrete beams.

[0076] The quality assessment module is used to collect expected manufacturing process parameters of precast concrete beams, and in combination with the precast concrete beam manufacturing process compliance parameter set, assess the expected manufacturing quality compliance index of the precast concrete beams, and compare it with the expected manufacturing quality compliance threshold.

[0077] The process adjustment module is used to control and adjust the expected manufacturing process parameters of the precast concrete beam if the expected manufacturing quality compliance index of the precast concrete beam is less than or equal to the expected manufacturing quality compliance threshold, and to apply the expected manufacturing process parameters of the precast concrete beam to actual construction if the expected manufacturing quality compliance index of the precast concrete beam is greater than the expected manufacturing quality compliance threshold.

[0078] The management feedback module is used to collect pollution parameters of the actual manufacturing process of the precast concrete beams, determine the environmental pollution index of the actual manufacturing process of the precast concrete beams, and thus provide management feedback on the actual manufacturing process of the precast concrete beams.

[0079] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A method for controlling the quality of a precast concrete beam, characterized in that: include: Step 1: Obtain environmental parameters of the expected manufacturing process of the precast concrete beam, analyze the environmental compliance factors of the expected manufacturing process of the precast concrete beam, and match the compliance parameter set of the precast concrete beam manufacturing process according to the environmental compliance factors of the expected manufacturing process of the precast concrete beam; Step 2: Collect the expected manufacturing process parameters of the precast concrete beam, and evaluate the expected manufacturing quality compliance index of the precast concrete beam in combination with the compliance parameter set of the precast concrete beam manufacturing process, and compare it with the expected manufacturing quality compliance threshold; Step 3: If the expected manufacturing quality compliance index of the precast concrete beam is less than or equal to the expected manufacturing quality compliance threshold, the expected manufacturing process parameters of the precast concrete beam are controlled and adjusted; if the expected manufacturing quality compliance index of the precast concrete beam is greater than the expected manufacturing quality compliance threshold, the expected manufacturing process parameters of the precast concrete beam are applied to the actual construction; Step 4: Collect pollution parameters of the actual manufacturing process of precast concrete beams, determine the environmental pollution index of the actual manufacturing process of precast concrete beams, and provide management feedback on the actual manufacturing process of precast concrete beams.

2. The quality control method of a precast concrete beam according to claim 1, characterized in that: The environmental compliance factors of the expected manufacturing process of precast concrete beams are analyzed. The specific analysis process is as follows: The environmental parameters of the expected manufacturing process of the precast concrete beams include the average pH value of the water used in the environment of the expected manufacturing process of the precast concrete beams during the environmental monitoring period, the average temperature of the environment of the expected manufacturing process of the precast concrete beams during the environmental monitoring period, and the average concentration of various harmful gases in the environment of the expected manufacturing process of the precast concrete beams during the environmental monitoring period; The environmental compliance factor of the expected manufacturing process of precast concrete beams is obtained by comprehensively analyzing the average pH of the water in the environment where the expected manufacturing process of precast concrete beams is located during the environmental monitoring period, the average temperature of the environment where the expected manufacturing process of precast concrete beams is located during the environmental monitoring period, and the average concentrations of various harmful gases in the environment where the expected manufacturing process of precast concrete beams is located during the environmental monitoring period.

3. The quality control method of a precast concrete beam according to claim 2, characterized in that: The specific analysis method for the environmental compliance factors of the expected manufacturing process of the precast concrete beam is as follows: Where, ECF represents the environmental compliance factor of the expected manufacturing process of precast concrete beams, PWR represents the average pH value of the environment in which the expected manufacturing process of precast concrete beams is located during the environmental monitoring period, APD represents the average temperature of the environment in which the expected manufacturing process of precast concrete beams is located during the environmental monitoring period, and CHG represents the average temperature of the environment in which the expected manufacturing process of precast concrete beams is located during the environmental monitoring period. d It represents the average concentration of the dth harmful gas in the environment of the expected manufacturing process of the concrete precast beam within the environmental monitoring period, ΔPWR represents the average pH reference value of the use water preset in the control database, ΔAPD represents the average temperature reference value preset in the control database, F represents the environmental compliance ratio factor corresponding to the unit value of the average concentration of harmful gases preset in the control database, e is a natural constant, d is the number of various harmful gases, d= { 1,2,3,...,s } , s is the total number of harmful gas types.

4. The quality control method for precast concrete beams according to claim 1, characterized in that: The concrete precast beam manufacturing process compliance parameter set is matched, and the specific matching process is: The environmental compliance factors of the expected manufacturing process of the precast concrete beam are matched with the compliance parameter sets of the precast concrete beam manufacturing process corresponding to each environmental compliance factor interval stored in the control database, thereby obtaining the compliance parameter sets of the precast concrete beam manufacturing process corresponding to the environmental compliance factors of the expected manufacturing process of the precast concrete beam.

5. The quality control method of a precast concrete beam according to claim 1, characterized in that: The specific evaluation process of evaluating the expected manufacturing quality compliance index of precast concrete beams is as follows: The expected manufacturing process parameters of the precast concrete beam include the concrete water-cement ratio of the precast concrete beam, the vibration amplitude curve of the precast concrete beam, and the prestress of each sample detection position point in each sample detection position area of ​​the precast concrete beam; Locate and extract the vibration amplitude of each detection position point from the vibration amplitude curve of the precast concrete beam, perform standard deviation processing on the vibration amplitude of each detection position point, and mark the processing result as a discrete value of the vibration amplitude of the precast concrete beam; The prestress of each sample detection position point in each sample detection position area of ​​the concrete precast beam is averaged, and the processing result is marked as the average prestress of each sample detection position area of ​​the concrete precast beam; Extract the concrete reference water-cement ratio and the reference average prestress of each sample test location area from the compliance parameter set of the concrete precast beam manufacturing process; The expected manufacturing quality compliance index of the precast concrete beam is obtained by comprehensively considering the environmental compliance factors of the expected manufacturing process of the precast concrete beam, the concrete water-cement ratio of the precast concrete beam, the discrete value of the vibration amplitude of the precast concrete beam, the average prestress of each sample test position area of ​​the precast concrete beam, the reference water-cement ratio of concrete and the reference average prestress of each sample test position area.

6. The quality control method of a precast concrete beam according to claim 1, characterized in that: The control and adjustment of the expected manufacturing process parameters of the precast concrete beam is specifically carried out as follows: Performing difference processing on the expected manufacturing quality compliance threshold and the expected manufacturing quality compliance index of the precast concrete beam, marking the processing result as the expected manufacturing quality compliance index deviation value of the precast concrete beam, and matching the adjustment set of the expected manufacturing process parameters according to the expected manufacturing quality compliance index deviation value of the precast concrete beam; The expected manufacturing process parameters of the precast concrete beam are updated according to the adjustment set of the expected manufacturing process parameters, and the expected manufacturing quality compliance index of the precast concrete beam is re-evaluated, thereby completing the control adjustment of the expected manufacturing process parameters of the precast concrete beam.

7. The quality control method of a precast concrete beam according to claim 1, characterized in that: The pollution parameters of the actual manufacturing process of the precast concrete beams include wastewater pollution parameters of the actual manufacturing process of the precast concrete beams and waste gas pollution parameters of the actual manufacturing process of the precast concrete beams.

8. The quality control method for precast concrete beams according to claim 7, characterized in that: The environmental pollution index of the actual manufacturing process of the precast concrete beam is determined by the following specific process: The wastewater pollution parameters of the actual manufacturing process of the precast concrete beams include the average pH value of the wastewater belonging to the actual manufacturing process of the precast concrete beams during the pollution monitoring period and the average concentration of various pollutants in the wastewater belonging to the actual manufacturing process of the precast concrete beams during the pollution monitoring period; The exhaust gas pollution parameters of the actual manufacturing process of the precast concrete beam include the average concentration of various exhaust gases in the actual manufacturing process of the precast concrete beam during the pollution monitoring period; A comprehensive analysis is conducted on the expected manufacturing quality compliance index of precast concrete beams, the average pH of wastewater from the actual manufacturing process of precast concrete beams during the pollution monitoring period, the average concentrations of various pollutants in wastewater from the actual manufacturing process of precast concrete beams during the pollution monitoring period, and the average concentrations of various waste gases from the actual manufacturing process of precast concrete beams during the pollution monitoring period to obtain the environmental pollution index of the actual manufacturing process of precast concrete beams.

9. The quality control method of a precast concrete beam according to claim 1, characterized in that: The management feedback of the actual manufacturing process of the concrete precast beam is analyzed as follows: The environmental pollution index of the actual manufacturing process of the precast concrete beam is compared with the environmental pollution threshold. If the environmental pollution index of the actual manufacturing process of the precast concrete beam is greater than the environmental pollution threshold, an environmental pollution management set is generated according to the environmental pollution index of the actual manufacturing process of the precast concrete beam, and management feedback is provided to the actual manufacturing process of the precast concrete beam based on the environmental pollution management set. If the environmental pollution index of the actual manufacturing process of the precast concrete beam is less than or equal to the environmental pollution threshold, the pollution parameters of the actual manufacturing process of the precast concrete beam are continuously monitored and collected.

10. A system using a quality control method for a precast concrete beam as claimed in any one of claims 1 to 9, characterized in that: include: An environmental analysis module is used to obtain environmental parameters of the expected manufacturing process of precast concrete beams, analyze environmental compliance factors of the expected manufacturing process of precast concrete beams, and match compliance parameter sets of the precast concrete beam manufacturing process according to the environmental compliance factors of the expected manufacturing process of precast concrete beams; A quality assessment module is used to collect the expected manufacturing process parameters of the precast concrete beam, and evaluate the expected manufacturing quality compliance index of the precast concrete beam in combination with the compliance parameter set of the precast concrete beam manufacturing process, and compare it with the expected manufacturing quality compliance threshold; a process adjustment module, for controlling and adjusting the expected manufacturing process parameters of the precast concrete beam if the expected manufacturing quality compliance index of the precast concrete beam is less than or equal to the expected manufacturing quality compliance threshold, and for applying the expected manufacturing process parameters of the precast concrete beam to actual construction if the expected manufacturing quality compliance index of the precast concrete beam is greater than the expected manufacturing quality compliance threshold; The management feedback module is used to collect pollution parameters of the actual manufacturing process of the precast concrete beams, determine the environmental pollution index of the actual manufacturing process of the precast concrete beams, and thus provide management feedback on the actual manufacturing process of the precast concrete beams.

Images