A method for optimizing construction period of a foundation pit underground continuous wall joint structure

Abstract

This invention discloses a method for optimizing the construction period of diaphragm wall joint structures in foundation pits, belonging to the field of diaphragm wall technology. The method includes: collecting multi-source data on the diaphragm wall joint structure in foundation pits and preprocessing it; analyzing the multi-source data to determine the construction period status and identify the analysis results; and formulating an optimization scheme for the construction period of the diaphragm wall joint structure, simultaneously optimizing the construction progress and quality to form a closed-loop optimization process. This invention solves the problem that existing methods cannot effectively optimize the construction period of diaphragm wall joint structures in foundation pits, leading to low construction efficiency and inability to effectively ensure construction quality. This invention can effectively optimize the construction period of diaphragm wall joint structures in foundation pits, improving construction efficiency and ensuring construction quality.

Description

Technical Field

[0001] This invention relates to the field of diaphragm wall technology, specifically a method for optimizing the construction period of diaphragm wall joint structures in foundation pits. Background Technology

[0002] In underground engineering construction, foundation pit engineering is a complex and important project. In deep and large foundation pits, diaphragm walls are widely used as a mature and reliable retaining structure that can also serve as a water-stop curtain. Among them, the joint of the diaphragm wall is a key part of the diaphragm wall construction. Therefore, optimizing the construction period of the diaphragm wall joint structure in foundation pits can improve the construction efficiency of diaphragm walls.

[0003] Chinese patent CN119434244A discloses a joint structure and construction method for a diaphragm wall, comprising: a reinforcing cage; a first locking part, disposed at one end of the reinforcing cage, including locking segment one and locking segment two arranged sequentially along the width direction of the reinforcing cage; a second locking part, correspondingly disposed at the end of the reinforcing cage away from the first locking part, including locking segment three and locking segment four; when the first locking part and the second locking part on adjacent reinforcing cages are connected, locking segment one and locking segment three form a first fixed waterproof structure, and locking segment two and locking segment four form a second fixed waterproof structure, and a cavity is formed between the first fixed waterproof structure and the second fixed waterproof structure; and a water-stopping material, disposed within the cavity to form a cutoff layer, so that the cavity portion serves as a reinforced waterproof structure. However, this patent has the following defects:

[0004] Existing technologies cannot effectively optimize the construction period for the joint structure of the underground continuous wall in the foundation pit, resulting in low construction efficiency and an inability to effectively ensure construction quality. Summary of the Invention

[0005] The purpose of this invention is to provide a method for optimizing the construction period of diaphragm wall joint structures in foundation pits. This method can effectively optimize the construction period of diaphragm wall joint structures in foundation pits, improve construction efficiency, and effectively ensure construction quality, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A method for optimizing the construction period of diaphragm wall joint structures in foundation pits includes:

[0008] Collect multi-source data on the joint structure of the underground diaphragm wall in the foundation pit and preprocess it, and then securely store the preprocessed multi-source data on the joint structure of the underground diaphragm wall in the foundation pit.

[0009] Analyze the multi-source data of the diaphragm wall joint structure in the foundation pit to determine the construction period of the diaphragm wall joint structure in the foundation pit and determine the construction period analysis results of the diaphragm wall joint structure in the foundation pit.

[0010] Develop a schedule optimization plan for the diaphragm wall joint structure of the foundation pit, and simultaneously optimize the construction progress and quality of the diaphragm wall joint structure of the foundation pit to form a closed-loop schedule optimization for the diaphragm wall joint structure of the foundation pit.

[0011] Preferably, multi-source data on the joint structure of the underground continuous wall in the foundation pit are collected, including:

[0012] The intelligent data acquisition equipment is used to monitor the completion time of the joint pipe hoisting and concrete pouring stages, as well as the duration of excavation, trench cleaning and concrete curing processes in real time, and to obtain construction progress data.

[0013] Based on intelligent data acquisition equipment, the verticality and flatness of the joint pipe, the strength and density of the concrete, and the anti-leakage performance of the water injection test are monitored in real time to obtain quality inspection data.

[0014] Based on construction progress data and quality inspection data, multi-source data of the joint structure of the underground continuous wall in the foundation pit were determined.

[0015] Preferably, the multi-source data of the diaphragm wall joint structure in the foundation pit is preprocessed, including:

[0016] Clean the multi-source data of the diaphragm wall joint structure in the foundation pit to remove noise data and reduce noise interference.

[0017] The multi-source data of the diaphragm wall joint structure in the foundation pit were checked one by one to identify the missing and abnormal data, and the missing and abnormal data were evaluated.

[0018] If missing or abnormal data is useful for optimizing the construction period of the diaphragm wall joint structure in the foundation pit, then the missing or abnormal data is processed according to the data integrity; if missing or abnormal data is not useful for optimizing the construction period of the diaphragm wall joint structure in the foundation pit, then the missing or abnormal data is removed.

[0019] Preferably, the data collection frequency of construction progress data and quality inspection data is adjusted based on the removal of missing and abnormal data, including:

[0020] Extract the number of data items corresponding to the removed missing data and outlier data;

[0021] The number of data items corresponding to the removal of missing and abnormal data is obtained by dividing the data according to the construction progress data and the quality inspection data, and obtaining the number of data items to be removed for the construction progress data and the number of data items to be removed for the quality inspection data.

[0022] Retrieve the total number of data collection items corresponding to the construction progress data and quality inspection data;

[0023] The missing value ratio parameters for the construction progress data and the quality inspection data are obtained by comparing the number of data items removed from the construction progress data and the number of data items removed from the quality inspection data with the total number of data items collected for the construction progress data and the quality inspection data, respectively.

[0024] Retrieve the data acquisition sliding time window corresponding to the construction progress data and quality inspection data;

[0025] Retrieve the number of data items removed from each sliding time window corresponding to the construction progress data and quality inspection data;

[0026] Based on the number of data items removed from each sliding time window corresponding to the construction progress data and quality inspection data, obtain the standard deviation of the number of items corresponding to the number of data items removed from all sliding time windows corresponding to the construction progress data and quality inspection data.

[0027] The data collection frequency of construction progress data and quality inspection data is adjusted using the standard deviation of the number of items and the proportion of missing values ​​corresponding to the construction progress data and quality inspection data.

[0028] Preferably, the data collection frequency of construction progress data and quality inspection data is adjusted using the ratio of the standard deviation of the number of items to the proportion of missing values ​​corresponding to the construction progress data and quality inspection data, including:

[0029] Retrieve the weight values ​​of the data that were removed from each sliding time window corresponding to the construction progress data and quality inspection data;

[0030] The standard deviation of the weights of the removed data in each sliding time window corresponding to the construction progress data and quality inspection data is obtained by calculating the weight values ​​of the data removed in each sliding time window corresponding to the construction progress data and quality inspection data.

[0031] The standard deviation of the data weights is normalized to obtain the normalized standard deviation of the data weights;

[0032] Extract the standard deviation of the number of items corresponding to the number of items removed from all sliding time windows corresponding to the construction progress data and quality inspection data;

[0033] The standard deviation of the number of terms is normalized to obtain the normalized standard deviation of the number of terms;

[0034] The data collection frequency of construction progress data and quality inspection data is adjusted by combining the normalized standard deviation of the number of items and the normalized standard deviation of the data weights with the missing value ratio parameters corresponding to the construction progress data and quality inspection data.

[0035] Preferably, the preprocessing of multi-source data on the joint structure of the underground diaphragm wall in the foundation pit also includes:

[0036] Normalize the multi-source data of the diaphragm wall joint structure in the foundation pit, convert the multi-source data of the diaphragm wall joint structure in the foundation pit into a unified data format, eliminate the dimensional differences in the multi-source data of the diaphragm wall joint structure in the foundation pit, and form standardized multi-source data of the diaphragm wall joint structure in the foundation pit.

[0037] Preferably, the preprocessing of multi-source data on the joint structure of the underground diaphragm wall in the foundation pit also includes:

[0038] Multi-source data on the joint structure of the diaphragm wall in the foundation pit are integrated into a unified data view. The integrated multi-source data on the joint structure of the diaphragm wall in the foundation pit is then verified. After successful verification, the integrated multi-source data on the joint structure of the diaphragm wall in the foundation pit is securely stored.

[0039] Preferably, the integrated multi-source data of the diaphragm wall joint structure in the foundation pit is verified by performing the following operations:

[0040] The integrated multi-source data of the diaphragm wall joint structure of the foundation pit is compared and analyzed with the multi-source data of the diaphragm wall joint structure of the foundation pit before integration to determine whether the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is missing.

[0041] When the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is the same as the multi-source data of the diaphragm wall joint structure of the foundation pit before integration, then the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is complete.

[0042] When the integrated multi-source data of the diaphragm wall joint structure in the foundation pit differs from the multi-source data of the diaphragm wall joint structure in the foundation pit before integration, the integrated multi-source data of the diaphragm wall joint structure in the foundation pit is missing, and the missing data is filled into the integrated multi-source data of the diaphragm wall joint structure in the foundation pit.

[0043] Preferably, multi-source data on the diaphragm wall joint structure of the foundation pit are analyzed to determine the construction period of the diaphragm wall joint structure, including:

[0044] Based on the optimization requirements of the construction period of the underground diaphragm wall joint structure in the foundation pit, the construction period threshold of the underground diaphragm wall joint structure in the foundation pit is set in advance, including the construction progress threshold and the construction quality threshold.

[0045] Based on the construction period threshold of the diaphragm wall joint structure in the foundation pit, the multi-source data of the diaphragm wall joint structure in the foundation pit are analyzed to determine the construction period of the diaphragm wall joint structure in the foundation pit and to determine the construction period analysis results of the diaphragm wall joint structure in the foundation pit.

[0046] Preferably, based on the construction period threshold of the diaphragm wall joint structure in the foundation pit, multi-source data of the diaphragm wall joint structure in the foundation pit are analyzed, including:

[0047] The multi-source data of the diaphragm wall joint structure of the foundation pit were compared with the construction period threshold of the diaphragm wall joint structure of the foundation pit one by one, and the matching degree between the multi-source data of the diaphragm wall joint structure of the foundation pit and the construction period threshold of the diaphragm wall joint structure of the foundation pit was analyzed.

[0048] When the multi-source data of the diaphragm wall joint structure in the foundation pit matches the construction period threshold of the diaphragm wall joint structure in the foundation pit, the construction period analysis result of the diaphragm wall joint structure in the foundation pit is normal.

[0049] If the multi-source data of the diaphragm wall joint structure in the foundation pit does not match the construction period threshold of the diaphragm wall joint structure in the foundation pit, the construction period analysis result of the diaphragm wall joint structure in the foundation pit is abnormal.

[0050] Preferably, the construction progress and construction quality of the diaphragm wall joint structure in the foundation pit are optimized simultaneously, including:

[0051] Based on the construction period analysis results of the underground continuous wall joint structure of the foundation pit, the causes of construction period abnormalities should be identified in a timely manner.

[0052] Based on the reasons for the abnormal construction period, an optimization plan for the construction period of the diaphragm wall joint structure in the foundation pit was formulated. The construction progress and construction quality of the diaphragm wall joint structure in the foundation pit were optimized simultaneously, the construction process was simplified, and the construction period of the diaphragm wall joint structure in the foundation pit was optimized while ensuring the construction quality.

[0053] Preferably, a closed-loop schedule optimization for the diaphragm wall joint structure of the foundation pit is formed, including:

[0054] The construction period of the diaphragm wall joint structure in the foundation pit is monitored in real time. The construction period of the diaphragm wall joint structure in the foundation pit is adjusted and optimized based on the monitoring feedback, thus forming a closed-loop construction period optimization for the diaphragm wall joint structure in the foundation pit.

[0055] Compared with the prior art, the beneficial effects of the present invention are:

[0056] This invention collects construction progress data and quality inspection data to determine multi-source data of the diaphragm wall joint structure in the foundation pit. This multi-source data is preprocessed and securely stored. Based on the construction period threshold of the diaphragm wall joint structure, the multi-source data is analyzed to determine the construction period status, identify the analysis results, and formulate an optimization plan. This plan simultaneously optimizes the construction progress and quality of the diaphragm wall joint structure, forming a closed-loop construction period optimization mechanism. This effectively optimizes the construction period of the diaphragm wall joint structure, improving construction efficiency and ensuring construction quality. Attached Figure Description

[0057] Figure 1 This is a flowchart of the method for optimizing the construction period of the joint structure of the underground continuous wall in the foundation pit according to the present invention. Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] To address the current issues of ineffective schedule optimization for diaphragm wall joint structures in foundation pits, leading to low construction efficiency and compromised construction quality, please refer to [link to relevant documentation]. Figure 1 This embodiment provides the following technical solution:

[0060] A method for optimizing the construction period of diaphragm wall joint structures in foundation pits includes:

[0061] Collect multi-source data on the joint structure of the underground diaphragm wall in the foundation pit and preprocess it, and then securely store the preprocessed multi-source data on the joint structure of the underground diaphragm wall in the foundation pit.

[0062] In this embodiment, multi-source data on the joint structure of the underground continuous wall in the foundation pit are collected, including:

[0063] The intelligent data acquisition equipment is used to monitor the completion time of the joint pipe hoisting and concrete pouring stages, as well as the duration of excavation, trench cleaning and concrete curing processes in real time, and to obtain construction progress data.

[0064] Based on intelligent data acquisition equipment, the verticality and flatness of the joint pipe, the strength and density of the concrete, and the anti-leakage performance of the water injection test are monitored in real time to obtain quality inspection data.

[0065] Based on construction progress data and quality inspection data, multi-source data of the joint structure of the underground continuous wall in the foundation pit were determined.

[0066] In this embodiment, the multi-source data of the underground continuous wall joint structure of the foundation pit is preprocessed, including:

[0067] Clean the multi-source data of the diaphragm wall joint structure in the foundation pit to remove noise data and reduce noise interference.

[0068] The multi-source data of the diaphragm wall joint structure in the foundation pit were checked one by one to identify the missing and abnormal data, and the missing and abnormal data were evaluated.

[0069] If missing or abnormal data is useful for optimizing the construction period of the diaphragm wall joint structure in the foundation pit, then the missing or abnormal data is processed according to the data integrity; if missing or abnormal data is not useful for optimizing the construction period of the diaphragm wall joint structure in the foundation pit, then the missing or abnormal data is removed.

[0070] Specifically, the data collection frequency for construction progress data and quality inspection data will be adjusted based on the removal of missing and outlier data, including:

[0071] Extract the number of data items corresponding to the removed missing data and outlier data;

[0072] The number of data items corresponding to the removal of missing and abnormal data is obtained by dividing the data according to the construction progress data and the quality inspection data, and obtaining the number of data items to be removed for the construction progress data and the number of data items to be removed for the quality inspection data.

[0073] Retrieve the total number of data collection items corresponding to the construction progress data and quality inspection data;

[0074] The missing value ratio parameters for the construction progress data and the quality inspection data are obtained by comparing the number of data items removed from the construction progress data and the number of data items removed from the quality inspection data with the total number of data items collected for the construction progress data and the quality inspection data, respectively.

[0075] Retrieve the data acquisition sliding time window corresponding to the construction progress data and quality inspection data;

[0076] Retrieve the number of data items removed from each sliding time window corresponding to the construction progress data and quality inspection data;

[0077] Based on the number of data items removed from each sliding time window corresponding to the construction progress data and quality inspection data, obtain the standard deviation of the number of items corresponding to the number of data items removed from all sliding time windows corresponding to the construction progress data and quality inspection data.

[0078] The data collection frequency of construction progress data and quality inspection data is adjusted using the standard deviation of the number of items and the proportion of missing values ​​corresponding to the construction progress data and quality inspection data.

[0079] The technical effects of the above solution are as follows: First, extract the number of data items corresponding to the removed missing and abnormal data, dividing the data into the number of data items removed for construction progress and quality inspection data respectively; then, retrieve the total number of data items collected and calculate the missing value ratio parameter for both; next, retrieve the data collection sliding time window and the number of data items removed in each window, and calculate the standard deviation of the number of items; finally, use the standard deviation of the number of items and the missing value ratio parameter to adjust the collection frequency of construction progress and quality inspection data. By calculating the missing value ratio parameter, the situation of construction progress and quality inspection data being removed due to missing or abnormal data is quantified, transforming data quality into a calculable value, providing a clear data quality basis for frequency adjustment, and accurately linking frequency adjustment with data quality status, avoiding blind adjustment. The introduction of a sliding time window and the standard deviation of the number of items captures the fluctuation of the number of data items removed within different time windows. The fluctuation of the number of data items removed reflects the dynamic changes in data quality, and the standard deviation of the number of items can accurately characterize the degree of this fluctuation, allowing frequency adjustment to dynamically adapt to data quality fluctuations, improving the timeliness and adaptability of adjustment. The number of items to be removed and the proportion of missing values ​​are calculated separately for construction progress and quality inspection data to differentiate the quality status of different data types. Due to the different characteristics and importance of construction progress and quality inspection data, appropriate frequency adjustment strategies are implemented to meet the collection needs of different data types, ensuring the relevance and effectiveness of data collection. The collection frequency is dynamically adjusted based on data quality (missing data, anomalies). When data quality is poor (many missing or anomalies), the frequency can be reasonably increased to supplement valid data; when data quality is good, the frequency is reduced to decrease resource consumption. Optimizing data collection resource allocation improves data collection efficiency and cost-effectiveness, ensuring that construction data collection is both comprehensive and efficient. Reasonable collection frequency adjustments ensure the timeliness and effectiveness of construction progress and quality inspection data. High-quality data with appropriate frequencies provides reliable support for construction management decisions (such as schedule control and quality acceptance), reducing decision-making errors caused by data issues and facilitating the smooth progress and quality assurance of construction projects. The standard deviation of the number of items reflects the fluctuation of the number of data items removed. Taking this fluctuation into account when adjusting the frequency can reduce large fluctuations in the acquisition frequency caused by data quality fluctuations, making the acquisition frequency adjustment more stable, ensuring the stability and continuity of data acquisition, and facilitating long-term monitoring and analysis of construction data.

[0080] Specifically, the data collection frequency of construction progress data and quality inspection data is adjusted using the standard deviation of the number of items and the proportion of missing values ​​corresponding to the construction progress data and quality inspection data, including:

[0081] Retrieve the weight values ​​of the data that were removed from each sliding time window corresponding to the construction progress data and quality inspection data;

[0082] The standard deviation of the weights of the removed data in each sliding time window corresponding to the construction progress data and quality inspection data is obtained by calculating the weight values ​​of the data removed in each sliding time window corresponding to the construction progress data and quality inspection data.

[0083] The standard deviation of the data weights is normalized to obtain the normalized standard deviation of the data weights;

[0084] Extract the standard deviation of the number of items corresponding to the number of items removed from all sliding time windows corresponding to the construction progress data and quality inspection data;

[0085] The standard deviation of the number of terms is normalized to obtain the normalized standard deviation of the number of terms;

[0086] The data collection frequency of construction progress data and quality inspection data is adjusted by combining the normalized standard deviation of the number of items and the normalized standard deviation of the data weights with the missing value ratio parameters corresponding to the construction progress data and quality inspection data.

[0087] The adjusted data collection frequency for construction progress and quality inspection data is obtained using the following formula:

[0088]

[0089] Where F represents the adjusted data collection frequency for construction progress and quality inspection data; F0 represents the original data collection frequency for construction progress and quality inspection data; s represents the proportion of missing values ​​in the construction progress and quality inspection data; σ m and σ n These represent the normalized standard deviation of the number of items and the standard deviation of the data weights for the construction progress data and quality inspection data, respectively. Specifically, e -5*(s-0.3) By utilizing the shape of the Sigmoid function, the linear change of the missing value proportion parameter s is transformed into a non-linear correction force. When s < 0.3 (good data quality), the correction factor approaches 1, and the frequency adjustment amplitude is small; when s > 0.3 (poor data quality), the correction factor increases rapidly, strengthening the need for frequency adjustment, which aligns with the practical logic that "the worse the data quality, the more necessary it is to increase the frequency to supplement effective data." By normalizing the missing value proportion parameter 's', the fluctuation correction term is correlated with the degree of data quality degradation, avoiding excessive fluctuation correction from interfering with the basic quality assessment. This ensures that frequency adjustments both respond to dynamic fluctuations and anchor to basic quality requirements. Existing technologies often simply linearly correlate data quality with collection frequency, ignoring the "marginal effect of data quality degradation" (e.g., a small quality improvement requires a larger frequency adjustment when the quality is extremely poor). This formula uses a sigmoid correction factor to achieve a "layered response" to data quality: fine-tuning when quality is good and strong correction when quality is poor, accurately matching the "gradual demand for data quality from good to bad" in construction scenarios, improving the granularity of frequency adjustments. Traditional methods often focus solely on the data quality mean, ignoring the impact of quality fluctuations on frequency. This formula integrates the standard deviation of the number of items (dynamically eliminating fluctuations) and the standard deviation of data weights (dynamically weighting fluctuations), through... The synergistic effect reflects the comprehensive effect of quality fluctuations; then through By associating the underlying quality(s), frequency adjustments are made to simultaneously respond to both "long-term quality trends" and "short-term fluctuations," ensuring the stability and adaptability of construction data acquisition. The standard deviation of the number of items and the standard deviation of data weights are normalized to eliminate dimensional differences between different indicators (e.g., the standard deviation of the number of items represents count fluctuations, while the standard deviation of weights represents proportional fluctuations), thus ensuring σ... m With σ n It can directly participate in collaborative calculations. Compared to unnormalized mixed calculations, it avoids adjustment deviations caused by dimensional conflicts and improves the formula's adaptability to multi-dimensional construction data. Construction progress and quality inspection data have the characteristics of "timely re-collection for quality deterioration and dynamic response to fluctuations." This formula adapts to the marginal effect of quality deterioration through: a sigmoid factor; compared to general frequency adjustment models, it more accurately matches the actual needs of construction data collection, reduces frequency inaccuracies caused by model mismatch, and improves the balance between construction data quality and collection efficiency.

[0090] The technical effects of the above solution are as follows: First, the number of missing and abnormal data items removed from the construction progress and quality inspection data is extracted, and the number of removed items for each of the two data categories is obtained. The missing value ratio parameter is calculated by combining this with the total number of collected items. Then, the sliding time window and the number of removed items in each window, along with the corresponding data weight values, are retrieved. The standard deviation of the number of items and the standard deviation of the data weights are calculated and normalized. Finally, the normalized standard deviation and the missing value ratio parameter are substituted into the formula. Based on the frequency before adjustment, the Sigmoid correction factor responds to the degree of data quality degradation, and the fluctuation correction term synergistically reflects the comprehensive effect of quality fluctuations, calculating the adjusted collection frequency. The missing value ratio parameter quantifies the basic state of data quality, and the Sigmoid correction factor achieves a tiered response to quality degradation, fine-tuning the frequency when quality is good and strongly correcting when quality is poor, ensuring that the collection frequency is precisely matched with data quality, guaranteeing the effectiveness of data collection, and reducing decision-making data bias caused by quality issues. The standard deviation of the number of items (reflecting fluctuations in the number of removed items) and the standard deviation of the data weights (reflecting fluctuations in the weights of removed data) are integrated to collaboratively capture dynamic fluctuations in data quality. The fluctuation correction term enables frequency adjustment to respond to short-term fluctuations, avoiding untimely or excessive data collection caused by quality fluctuations, ensuring continuous and stable construction data, and supporting accurate decision-making in construction management. Normalization of the number of items and the standard deviation of data weights eliminates dimensional differences, enabling multi-dimensional data quality indicators to collaboratively participate in frequency adjustment. Breaking the limitations of single indicators, it comprehensively considers both static degradation and dynamic fluctuations in data quality, improving the scientific nature of frequency adjustment and adapting to the complex characteristics of construction data. Based on dynamic frequency adjustment according to data quality, it appropriately increases the frequency to supplement effective data when quality is poor and decreases the frequency to save resources when quality is good. Optimizing the allocation of collection resources ensures both the comprehensiveness of construction data and avoids resource waste, improving collection efficiency; simultaneously, the collaborative mechanism reduces large frequency oscillations, enhances data collection stability, and facilitates long-term monitoring and analysis of construction data. Targeting the characteristics of construction progress and quality inspection data, it provides layered responses to quality degradation and collaboratively handles dynamic fluctuations, accurately meeting the data collection needs in construction scenarios. Compared to general models, it reduces frequency inaccuracies, provides high-quality, frequency-appropriate data support for construction management, reduces the risk of decision-making errors, and helps construction projects proceed smoothly and ensure quality.

[0091] In this embodiment, the preprocessing of multi-source data on the joint structure of the underground continuous wall in the foundation pit also includes:

[0092] Normalize the multi-source data of the diaphragm wall joint structure in the foundation pit, convert the multi-source data of the diaphragm wall joint structure in the foundation pit into a unified data format, eliminate the dimensional differences in the multi-source data of the diaphragm wall joint structure in the foundation pit, and form standardized multi-source data of the diaphragm wall joint structure in the foundation pit.

[0093] In this embodiment, the preprocessing of multi-source data on the joint structure of the underground continuous wall in the foundation pit also includes:

[0094] Multi-source data on the joint structure of the diaphragm wall in the foundation pit are integrated into a unified data view. The integrated multi-source data on the joint structure of the diaphragm wall in the foundation pit is then verified. After successful verification, the integrated multi-source data on the joint structure of the diaphragm wall in the foundation pit is securely stored.

[0095] In this embodiment, the integrated multi-source data of the underground continuous wall joint structure of the foundation pit is verified by performing the following operations:

[0096] The integrated multi-source data of the diaphragm wall joint structure of the foundation pit is compared and analyzed with the multi-source data of the diaphragm wall joint structure of the foundation pit before integration to determine whether the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is missing.

[0097] When the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is the same as the multi-source data of the diaphragm wall joint structure of the foundation pit before integration, then the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is complete.

[0098] When the integrated multi-source data of the diaphragm wall joint structure in the foundation pit differs from the multi-source data of the diaphragm wall joint structure in the foundation pit before integration, the integrated multi-source data of the diaphragm wall joint structure in the foundation pit is missing, and the missing data is filled into the integrated multi-source data of the diaphragm wall joint structure in the foundation pit.

[0099] Specifically, the multi-source data for the joint structure of the underground diaphragm wall in the foundation pit includes parts A and B. Part A includes A1, A2...A n Part B includes B1, B2...B n After integrating multi-source data on the joint structure of the underground continuous wall in the foundation pit, integrated data A1, A2...A were obtained. n B1, B2...B n ;

[0100] Specifically, the integrated multi-source data of the diaphragm wall joint structure in the foundation pit is compared and analyzed with the original multi-source data to determine whether the integrated multi-source data of the diaphragm wall joint structure in the foundation pit is A1, A2...A n B1, B2...B n ;

[0101] When the integrated multi-source data of the underground continuous wall joint structure of the foundation pit is not A1, A2...A n B1, B2...B nIf missing data is found, it will be searched and filled into the integrated multi-source data of the diaphragm wall joint structure of the foundation pit. For example, if the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is A2...A n B1, B2...B n If data A1 is missing, then fill the missing data A1 into A2...A n B1, B2...B n In this process, the multi-source data of the diaphragm wall joint structure in the foundation pit after integration is made the same as the multi-source data of the diaphragm wall joint structure in the foundation pit before integration.

[0102] Analyze the multi-source data of the diaphragm wall joint structure in the foundation pit to determine the construction period of the diaphragm wall joint structure in the foundation pit and determine the construction period analysis results of the diaphragm wall joint structure in the foundation pit.

[0103] In this embodiment, multi-source data on the diaphragm wall joint structure of the foundation pit are analyzed to determine the construction period of the diaphragm wall joint structure, including:

[0104] Based on the optimization requirements of the construction period of the underground diaphragm wall joint structure in the foundation pit, the construction period threshold of the underground diaphragm wall joint structure in the foundation pit is set in advance, including the construction progress threshold and the construction quality threshold.

[0105] Based on the construction period threshold of the diaphragm wall joint structure in the foundation pit, the multi-source data of the diaphragm wall joint structure in the foundation pit are analyzed to determine the construction period of the diaphragm wall joint structure in the foundation pit and to determine the construction period analysis results of the diaphragm wall joint structure in the foundation pit.

[0106] In this embodiment, based on the construction period threshold of the diaphragm wall joint structure in the foundation pit, multi-source data of the diaphragm wall joint structure in the foundation pit are analyzed, including:

[0107] The multi-source data of the diaphragm wall joint structure of the foundation pit were compared with the construction period threshold of the diaphragm wall joint structure of the foundation pit one by one, and the matching degree between the multi-source data of the diaphragm wall joint structure of the foundation pit and the construction period threshold of the diaphragm wall joint structure of the foundation pit was analyzed.

[0108] When the multi-source data of the diaphragm wall joint structure in the foundation pit matches the construction period threshold of the diaphragm wall joint structure in the foundation pit, the construction period analysis result of the diaphragm wall joint structure in the foundation pit is normal.

[0109] If the multi-source data of the diaphragm wall joint structure in the foundation pit does not match the construction period threshold of the diaphragm wall joint structure in the foundation pit, the construction period analysis result of the diaphragm wall joint structure in the foundation pit is abnormal.

[0110] Specifically, based on the construction period threshold of the diaphragm wall joint structure in the foundation pit, multi-source data of the diaphragm wall joint structure in the foundation pit were analyzed. The analysis results of the construction period of the diaphragm wall joint structure in the foundation pit are shown in Table 1.

[0111] Table 1: Construction Period Analysis Results of Diaphragm Wall Joint Structure in Excavation Pit

[0112]

[0113]

[0114] Therefore, based on the construction period threshold of the diaphragm wall joint structure in the foundation pit, the multi-source data of the diaphragm wall joint structure in the foundation pit are analyzed to determine the construction period status of the diaphragm wall joint structure in the foundation pit, namely the construction quality and construction progress, and then the analysis results of the construction period of the diaphragm wall joint structure in the foundation pit are determined.

[0115] When construction quality is abnormal, it is necessary to optimize and control the construction quality. Otherwise, the abnormal construction quality will lead to the failure of the construction acceptance of the underground continuous wall of the foundation pit, which will affect the construction period. Therefore, it is necessary to optimize and control the construction quality, improve the construction quality and speed up the construction progress, which can shorten the construction period.

[0116] When construction progress is abnormal, it is necessary to optimize and control the construction progress. Otherwise, the abnormal construction progress will affect the construction period. Therefore, by optimizing and controlling the construction progress, the construction progress can be accelerated and the construction period can be shortened.

[0117] Develop a schedule optimization plan for the diaphragm wall joint structure of the foundation pit, and simultaneously optimize the construction progress and quality of the diaphragm wall joint structure of the foundation pit to form a closed-loop schedule optimization for the diaphragm wall joint structure of the foundation pit.

[0118] In this embodiment, the construction progress and construction quality of the underground continuous wall joint structure of the foundation pit are optimized simultaneously, including:

[0119] Based on the construction period analysis results of the underground continuous wall joint structure of the foundation pit, the causes of construction period abnormalities should be identified in a timely manner.

[0120] Based on the reasons for the abnormal construction period, an optimization plan for the construction period of the diaphragm wall joint structure in the foundation pit was formulated. The construction progress and construction quality of the diaphragm wall joint structure in the foundation pit were optimized simultaneously, the construction process was simplified, and the construction period of the diaphragm wall joint structure in the foundation pit was optimized while ensuring the construction quality.

[0121] In this embodiment, a closed-loop schedule optimization for the underground continuous wall joint structure of the foundation pit is formed, including:

[0122] The construction period of the diaphragm wall joint structure in the foundation pit is monitored in real time. The construction period of the diaphragm wall joint structure in the foundation pit is adjusted and optimized based on the monitoring feedback, thus forming a closed-loop construction period optimization for the diaphragm wall joint structure in the foundation pit.

[0123] In summary, based on the construction period threshold of the diaphragm wall joint structure in the foundation pit, multi-source data on the diaphragm wall joint structure in the foundation pit are analyzed to determine the construction period status of the diaphragm wall joint structure, determine the analysis results of the construction period of the diaphragm wall joint structure in the foundation pit, and formulate an optimization plan for the construction period of the diaphragm wall joint structure in the foundation pit. The construction progress and construction quality of the diaphragm wall joint structure in the foundation pit are optimized simultaneously, forming a closed-loop construction period optimization for the diaphragm wall joint structure in the foundation pit. This can effectively optimize the construction period of the diaphragm wall joint structure in the foundation pit, improve construction efficiency, and effectively ensure construction quality.

[0124] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0125] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for optimizing the construction period of diaphragm wall joint structures in foundation pits, characterized in that, include: Based on construction progress data and quality inspection data, multi-source data of the diaphragm wall joint structure of the foundation pit are collected and preprocessed, and the preprocessed multi-source data of the diaphragm wall joint structure of the foundation pit is securely stored. Among them, the multi-source data of the underground continuous wall joint structure of the foundation pit is cleaned to remove missing and abnormal data. Based on the removal of missing and abnormal data, the data collection frequency of the construction progress data and quality inspection data is adjusted using the standard deviation of the number of items and the ratio parameter of the missing values ​​corresponding to the construction progress data and quality inspection data. The data collection frequency for construction progress data and quality inspection data was adjusted based on the removal of missing and outlier data, including: Extract the number of data items corresponding to the removed missing data and outlier data; The number of data items corresponding to the removal of missing and abnormal data is obtained by dividing the data according to the construction progress data and the quality inspection data, and obtaining the number of data items to be removed for the construction progress data and the number of data items to be removed for the quality inspection data. Retrieve the total number of data collection items corresponding to the construction progress data and quality inspection data; The missing value ratio parameters for the construction progress data and the quality inspection data are obtained by comparing the number of data items removed from the construction progress data and the number of data items removed from the quality inspection data with the total number of data items collected for the construction progress data and the quality inspection data, respectively. Retrieve the data acquisition sliding time window corresponding to the construction progress data and quality inspection data; Retrieve the number of data items removed from each sliding time window corresponding to the construction progress data and quality inspection data; Based on the number of data items removed from each sliding time window corresponding to the construction progress data and quality inspection data, obtain the standard deviation of the number of items corresponding to the number of data items removed from all sliding time windows corresponding to the construction progress data and quality inspection data. The data collection frequency of construction progress data and quality inspection data is adjusted using the standard deviation of the number of items and the ratio of missing values ​​corresponding to construction progress data and quality inspection data. Analyze the multi-source data of the diaphragm wall joint structure in the foundation pit to determine the construction period of the diaphragm wall joint structure in the foundation pit and determine the construction period analysis results of the diaphragm wall joint structure in the foundation pit. Develop a schedule optimization plan for the diaphragm wall joint structure of the foundation pit, and simultaneously optimize the construction progress and quality of the diaphragm wall joint structure of the foundation pit to form a closed-loop schedule optimization for the diaphragm wall joint structure of the foundation pit.

2. The method for optimizing the construction period of a diaphragm wall joint structure in a foundation pit as described in claim 1, characterized in that, The data collection frequency of construction progress data and quality inspection data is adjusted using the standard deviation of the number of items and the proportion of missing values ​​corresponding to the construction progress data and quality inspection data, including: Retrieve the weight values ​​of the data that were removed from each sliding time window corresponding to the construction progress data and quality inspection data; The standard deviation of the weights of the removed data in each sliding time window corresponding to the construction progress data and quality inspection data is obtained by calculating the weight values ​​of the data removed in each sliding time window corresponding to the construction progress data and quality inspection data. The standard deviation of the data weights is normalized to obtain the normalized standard deviation of the data weights; Extract the standard deviation of the number of items corresponding to the number of items removed from all sliding time windows corresponding to the construction progress data and quality inspection data; The standard deviation of the number of terms is normalized to obtain the normalized standard deviation of the number of terms; The data collection frequency of construction progress data and quality inspection data is adjusted by combining the normalized standard deviation of the number of items and the normalized standard deviation of the data weights with the missing value ratio parameters corresponding to the construction progress data and quality inspection data.

3. The method for optimizing the construction period of a diaphragm wall joint structure in a foundation pit as described in claim 2, characterized in that, Preprocessing of multi-source data on the joint structure of the underground diaphragm wall in the foundation pit includes: Clean the multi-source data of the diaphragm wall joint structure in the foundation pit to remove noise data and reduce noise interference. The multi-source data of the diaphragm wall joint structure in the foundation pit were checked one by one to identify the missing and abnormal data, and the missing and abnormal data were evaluated. If missing or abnormal data is useful for optimizing the construction period of the diaphragm wall joint structure in the foundation pit, then the missing or abnormal data is processed according to the data integrity; if missing or abnormal data is not useful for optimizing the construction period of the diaphragm wall joint structure in the foundation pit, then the missing or abnormal data is removed.

4. The method for optimizing the construction period of a diaphragm wall joint structure in a foundation pit as described in claim 3, characterized in that, Analyze multi-source data on the diaphragm wall joint structure of the foundation pit to determine the construction period of the diaphragm wall joint structure, including: Based on the optimization requirements of the construction period of the underground diaphragm wall joint structure in the foundation pit, the construction period threshold of the underground diaphragm wall joint structure in the foundation pit is set in advance, including the construction progress threshold and the construction quality threshold. Based on the construction period threshold of the diaphragm wall joint structure in the foundation pit, the multi-source data of the diaphragm wall joint structure in the foundation pit are analyzed to determine the construction period of the diaphragm wall joint structure in the foundation pit and to determine the construction period analysis results of the diaphragm wall joint structure in the foundation pit. Among them, the multi-source data of the diaphragm wall joint structure of the foundation pit were compared with the construction period threshold of the diaphragm wall joint structure of the foundation pit one by one, and the matching degree between the multi-source data of the diaphragm wall joint structure of the foundation pit and the construction period threshold of the diaphragm wall joint structure of the foundation pit was analyzed. When the multi-source data of the diaphragm wall joint structure in the foundation pit matches the construction period threshold of the diaphragm wall joint structure in the foundation pit, the construction period analysis result of the diaphragm wall joint structure in the foundation pit is normal. If the multi-source data of the diaphragm wall joint structure in the foundation pit does not match the construction period threshold of the diaphragm wall joint structure in the foundation pit, the construction period analysis result of the diaphragm wall joint structure in the foundation pit is abnormal.

5. The method for optimizing the construction period of a diaphragm wall joint structure in a foundation pit as described in claim 4, characterized in that, Simultaneous optimization of the construction progress and quality of the underground diaphragm wall joint structure in the foundation pit, including: Based on the construction period analysis results of the underground continuous wall joint structure of the foundation pit, the causes of construction period abnormalities should be identified in a timely manner. Based on the reasons for the abnormal construction period, an optimization plan for the construction period of the diaphragm wall joint structure in the foundation pit was formulated. The construction progress and construction quality of the diaphragm wall joint structure in the foundation pit were optimized simultaneously, the construction process was simplified, and the construction period of the diaphragm wall joint structure in the foundation pit was optimized while ensuring the construction quality. The construction period of the diaphragm wall joint structure in the foundation pit is monitored in real time. The construction period of the diaphragm wall joint structure in the foundation pit is adjusted and optimized based on the monitoring feedback, thus forming a closed-loop construction period optimization for the diaphragm wall joint structure in the foundation pit.

6. The method for optimizing the construction period of a diaphragm wall joint structure in a foundation pit as described in claim 5, characterized in that, Collect multi-source data on the joint structure of the underground diaphragm wall in the foundation pit, including: The intelligent data acquisition equipment is used to monitor the completion time of the joint pipe hoisting and concrete pouring stages, as well as the duration of excavation, trench cleaning and concrete curing processes in real time, and to obtain construction progress data. Based on intelligent data acquisition equipment, the verticality and flatness of the joint pipe, the strength and density of the concrete, and the anti-leakage performance of the water injection test are monitored in real time to obtain quality inspection data. Based on construction progress data and quality inspection data, multi-source data of the joint structure of the underground continuous wall in the foundation pit were determined.

7. The method for optimizing the construction period of a diaphragm wall joint structure in a foundation pit as described in claim 6, characterized in that, Preprocessing of multi-source data on the joint structure of the underground diaphragm wall in the foundation pit also includes: Normalize the multi-source data of the diaphragm wall joint structure in the foundation pit, convert the multi-source data of the diaphragm wall joint structure in the foundation pit into a unified data format, eliminate the dimensional differences in the multi-source data of the diaphragm wall joint structure in the foundation pit, and form standardized multi-source data of the diaphragm wall joint structure in the foundation pit.

8. The method for optimizing the construction period of a diaphragm wall joint structure in a foundation pit as described in claim 7, characterized in that, Preprocessing of multi-source data on the joint structure of the underground diaphragm wall in the foundation pit also includes: Multi-source data on the joint structure of the diaphragm wall in the foundation pit are integrated into a unified data view. The integrated multi-source data on the joint structure of the diaphragm wall in the foundation pit is then verified. After successful verification, the integrated multi-source data on the joint structure of the diaphragm wall in the foundation pit is securely stored.

9. A method for optimizing the construction period of a diaphragm wall joint structure in a foundation pit as described in claim 8, characterized in that, The integrated multi-source data of the diaphragm wall joint structure in the foundation pit were verified by performing the following operations: The integrated multi-source data of the diaphragm wall joint structure of the foundation pit is compared and analyzed with the multi-source data of the diaphragm wall joint structure of the foundation pit before integration to determine whether the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is missing. When the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is the same as the multi-source data of the diaphragm wall joint structure of the foundation pit before integration, then the integrated multi-source data of the diaphragm wall joint structure of the foundation pit is complete. When the integrated multi-source data of the diaphragm wall joint structure in the foundation pit differs from the multi-source data of the diaphragm wall joint structure in the foundation pit before integration, the integrated multi-source data of the diaphragm wall joint structure in the foundation pit is missing, and the missing data is filled into the integrated multi-source data of the diaphragm wall joint structure in the foundation pit.

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