Safety assessment method and system for fabricated beam string structure steel support

Abstract

The invention discloses a safety assessment method and system for an assembly type beam string structure steel support, and relates to the technical field of engineering monitoring. During soil sampling, the beam string structure steel support and a soil body are monitored, meanwhile, a construction site is monitored, meanwhile, monitoring interaction of workers is increased, and the safety of the assembly type beam string structure steel support is improved. The soil sampling operation safety of the construction area, the safety of the beam string structure steel support and the management safety of the construction area are analyzed, and corresponding management is carried out, so that multi-dimensional monitoring of safety assessment of the beam string structure steel support is realized, and the reliability and reference of a safety assessment result of the beam string structure steel support are improved. The safety of equipment operation and soil sampling operation in a construction site is ensured, the management efficiency and the management effect of the construction site are improved, the safety of the beam string structure steel support and a soil body is ensured, the stability of the beam string structure steel support is improved, and the accident risk of the construction site is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering monitoring, and in particular to a safety assessment method and system for an assembled beam-string steel support. Background Art

[0002] The assembled beam-string steel support adopts a truss structure combined with a beam-string structure, and has the characteristics of high rigidity and high safety. By setting up the beam-string, it is convenient to take soil, which can reduce the difficulty of operation and speed up the excavation speed. However, in order to ensure the stability of the beam-string, it is necessary to ensure the distance between the soil pile and the equipment and the beam-string when taking soil, reduce the impact on the stability of the beam-string, and ensure the safety of the supporting structure. Therefore, when taking soil, it is necessary to monitor the safety of the beam-string.

[0003] Prior art, such as the invention patent disclosed in the application with publication number CN116911700A, is a method and system for engineering safety and quality supervision based on BIM and IOT, which involves the field of engineering supervision technology, including: deploying Internet of Things devices, building BIM models, integrating, and starting real-time data monitoring mode; collecting data in the construction process in real time, and intelligently analyzing the data through graph neural networks to determine risk points; using communication networks to transmit data, decrypting received data, and performing preliminary processing; conducting risk assessment on the preliminarily processed data, executing response strategies based on the assessment results, and optimizing the response strategy execution plan based on genetic algorithms; after executing response measures, adaptively adjusting the assessment results. The engineering safety and quality supervision method based on BIM and IOT provided by the present invention ensures construction safety. Improve the real-time and accuracy of responses to ensure that information is authentic and reliable. Provide decision makers with a comprehensive risk management perspective to effectively control construction risks.

[0004] Prior art, such as the invention patent disclosed in the application with the publication number CN113449953A, discloses a method for safety assessment of prefabricated building construction, including a construction site data detection module, a video acquisition module, a geological and climate information assessment module, and a construction division and risk identification module. The construction site data detection module detects the latitude and longitude coordinate values ​​of the construction site, obtains the latitude coordinate value of the current building to be assessed through data detection, and uses the latitude value of the building to be assessed to call the safety factor related parameter data of the current building to be assessed. The present invention collects the images of the workers' construction actions, generates corresponding dynamic construction actions based on the construction action images, and then matches the dynamic construction actions with the preset standard dynamic construction actions, so as to quickly determine whether the current workers' construction actions are irregular, so that hidden dangers can be quickly and conveniently discovered in safety monitoring management to avoid accidents.

[0005] With regard to the above scheme, in the prior art, during the construction of the project, real-time monitoring of various data such as the construction site and the actions of the workers is mainly carried out, and the safety hazards of the construction are analyzed after comparing with the preset threshold value. This method has at least the following shortcomings: 1. When taking soil at the construction site, not only the various data of the prefabricated beam string steel support itself can reflect whether the prefabricated beam string steel support is safe, but the operation of the soil taking equipment by the workers at the construction site will affect the safety of the beam string. The equipment needs to keep a certain distance from the beam string when taking soil, so as to reduce the impact of the excavation force and vibration force of the equipment on the beam string steel support during operation. However, the prior art lacks monitoring of the trajectory of the soil taking equipment, so that the distance between the soil taking equipment and the beam string steel support cannot be ensured, and the damage to the steel structure support structure by the excavation force and vibration force of the equipment cannot be avoided, thereby threatening the construction safety and project progress.

[0006] 2. The placement of the soil pile at the construction site needs to maintain a safe distance from the steel beam string support to prevent the soil pile from accumulating on the steel beam string support and causing the support structure to become unstable, and the soil sliding and impacting the support structure. However, the existing technology mainly monitors the status of the soil pile manually, and cannot ensure the standardization of the soil pile by the workers at the construction site in real time, thereby affecting the stability of the steel beam string support, and cannot timely train and manage the workers, increasing the danger of operations at the construction site.

[0007] 3. When taking soil, it is necessary to strictly follow the regulations, and workers should check the stability and deformation of the steel support multiple times to ensure the safety of the support structure. However, in the existing technology, when manual inspection is carried out, there is a lack of synchronization of the inspection data to the central server. The management personnel cannot obtain the workers' inspection situation through the server, and the inspection data cannot be used to analyze the safety of the beam-string steel support, which reduces the utilization rate of the inspection data, and cannot provide data for the analysis of the safety assessment of the beam-string steel support, and cannot effectively manage the workers' inspection work. In addition, when taking soil, workers should excavate strictly according to the plan to ensure the progress and safety of the excavation. However, the existing technology lacks monitoring of the soil, so it is impossible to understand the actual excavation situation, and it is impossible to ensure the safety of the soil and the beam-string steel support, which reduces the safety of the construction site. Summary of the invention

[0008] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide a safety assessment method and system for a prefabricated steel beam-string support.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions: In the first aspect, the present invention provides a safety assessment method for a prefabricated steel beam string support, comprising the following steps: S1. In a soil excavation process, a number of collection time periods are arranged according to a preset soil excavation plan, and soil excavation video data of the construction area in each collection time period is collected. At the same time, a number of collection devices are installed in the construction area, and the collection devices are used to collect the monitoring data corresponding to the steel beam string support in each collection time period and the basic data of the soil in each collection time period according to the preset collection frequency, and then transmitted to the server.

[0010] S2. When taking soil, the soil workers shall upload the adjustment data and manual inspection data of the steel support of the beam string in each collection period according to the requirements of the soil taking plan.

[0011] S3. The server receives the soil excavation video data of each collection period, the monitoring data corresponding to the beam string steel support in each collection period, and the basic data of the soil in each collection period, and processes the data. At the same time, the adjustment data and manual inspection data of the beam string steel support in each collection period are used to analyze the safety of soil excavation operations in the construction area, the safety of the beam string steel support, and the management safety of the construction area, and comprehensively analyze the construction safety of the beam string steel support when excavating soil.

[0012] S4. Implement corresponding construction management plan for the construction safety of steel beam string support during soil excavation.

[0013] In a second aspect, the present invention provides a safety assessment system for a prefabricated steel beam string support, comprising: a first monitoring module, which is used to arrange a number of collection time periods according to a preset soil excavation plan during a soil excavation process, collect soil excavation video data in the construction area in each collection time period, and install a number of collection devices in the construction area at the same time, and use the collection devices to collect the monitoring data corresponding to the steel beam string support in each collection time period and the basic data of the soil in each collection time period according to the preset collection frequency, and send them to the data analysis module.

[0014] The worker monitoring module is used by earthwork workers to upload the adjustment data and manual inspection data of the steel support of the beam string in each collection period according to the requirements of the earthwork plan when earthwork workers are taking earth.

[0015] The data analysis module is used to receive the earth-taking video data of each collection period, the monitoring data corresponding to the beam-string steel support in each collection period and the basic data of the soil in each collection period, and perform data processing. At the same time, the adjustment data and manual inspection data of the beam-string steel support in each collection period are used to analyze the safety of earth-taking operations in the construction area, the safety of the beam-string steel support and the management safety of the construction area, and comprehensively analyze the construction safety of the beam-string steel support when taking soil.

[0016] The execution module is used to execute the corresponding construction management plan for the construction safety of the steel support of the tensioned beam during soil excavation.

[0017] The beneficial effects of the present invention are as follows: the present invention provides a safety assessment method and system for an assembled beam-string steel support, which monitors the beam-string steel support and the soil when taking soil, monitors the construction site at the same time, increases the monitoring interaction of workers, analyzes the safety of soil taking operations in the construction area, the safety of the beam-string steel support and the management safety of the construction area, and performs corresponding management, thereby realizing multi-dimensional monitoring of the safety assessment of the beam-string steel support, improving the reliability and reference of the safety assessment results of the beam-string steel support, ensuring the safety of equipment operation and soil taking operations at the construction site, improving the management efficiency and management effect of the construction site, ensuring the safety of the beam-string steel support and the soil, improving the stability of the beam-string steel support, and reducing the risk of accidents at the construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The present invention is a schematic flow chart of the steps for implementing the method.

[0020] Figure 2 It is a schematic diagram of the system structure connection of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1 As shown, a safety assessment method for an assembled steel beam string support comprises the following steps: S1, in a soil excavation process, a plurality of collection time periods are arranged according to a preset soil excavation plan, and soil excavation video data of a construction area in each collection time period is collected, and a plurality of collection devices are installed in the construction area at the same time, and the collection devices are used to collect monitoring data corresponding to the steel beam string support in each collection time period and basic data of the soil in each collection time period according to a preset collection frequency, and then the data are transmitted to a server.

[0023] It should be noted that soil is excavated in layers, and each layer of soil is considered a collection period.

[0024] The camera carried by the drone is used to collect the soil excavation video data of the construction area at each collection period; the construction area is divided into the beam-string steel support structure and the soil excavation area, and displacement sensors, settlement sensors and vibration sensors are installed on the beam-string steel support structure to collect the monitoring data corresponding to the beam-string steel support at each collection period; the monitoring data includes various types of collection data, and the various types of collection data include displacement data, settlement data and structural data, among which the displacement data includes displacement amount, the settlement data includes settlement amount, and the structural data includes vibration frequency and amplitude.

[0025] Displacement sensors and settlement sensors are installed in the soil excavation area to collect basic data of the soil in each collection period. The basic data includes various monitoring data, which include soil displacement data and soil settlement data. The soil displacement data includes the displacement amount of the soil, and the soil settlement data includes the settlement amount of the soil.

[0026] S2. When taking soil, the soil workers shall upload the adjustment data and manual inspection data of the steel support of the beam string in each collection period according to the requirements of the soil taking plan.

[0027] It should be noted that the earth-excavation plan stipulates the time for each earth-excavation worker to carry out the steel support of the tensioned beam, as well as relevant data such as the position of the structure that needs to be adjusted and the quantity of materials required for adjustment. The earth-excavation workers need to carry out inspections at the prescribed time and reinforce the structure when loose structure is detected. After the inspection, the adjustment data and manual inspection data are uploaded to the system through the user end. The adjustment data includes the actual position of the adjusted structure and the actual number of materials required for adjustment; the manual inspection data includes the inspection time, the inspected area, the loose position, the reinforcement position and the quantity of materials required for reinforcement.

[0028] S3. The server receives the soil excavation video data of each collection period, the monitoring data corresponding to the beam string steel support in each collection period, and the basic data of the soil in each collection period, and processes the data. At the same time, the adjustment data and manual inspection data of the beam string steel support in each collection period are used to analyze the safety of soil excavation operations in the construction area, the safety of the beam string steel support, and the management safety of the construction area, and comprehensively analyze the construction safety of the beam string steel support when excavating soil.

[0029] In a specific embodiment, the data processing process in S2 is as follows: S2-1. The soil excavation video data of each acquisition period is divided into video frames, and the position of the soil excavation equipment, the position of the soil excavation workers, and the position and size of the soil pile are obtained from each video frame through image recognition technology; the position of the soil excavation equipment in each video frame corresponding to each acquisition period is sequentially imported into the three-dimensional model of the construction area to generate the movement trajectory of the soil excavation equipment in each acquisition period, and similarly, the movement trajectory of the soil excavation workers and the movement trajectory of the soil pile in each acquisition period are generated.

[0030] It should be noted that the soil pile is a pile of soil that has been taken out.

[0031] S2-2. The monitoring data is composed of data collected by various collection devices. The type corresponding to each collection device is obtained, and the monitoring data corresponding to the steel support of the tensioned beam in each collection period is classified into various types of collection data according to the type corresponding to each collection device. Similarly, the basic data of the soil in each collection period is classified into various types of monitoring data.

[0032] In a specific embodiment, the analysis process of the safety of earth-excavation operations in the construction area is as follows: based on the three-dimensional model of the construction area, the position of the tensioned beam steel support closest to the earth-excavation area is selected as the target point, and a circle is drawn with the target point as the center and a preset safety interval as the radius. The area inside the circle is the safety impact area. The safety impact area is compared with the moving trajectory of the earth-excavation equipment in each collection period, and the part where the safety impact area overlaps with the moving trajectory is selected as the first marking operation trajectory, and the length of the first marking operation trajectory in each collection period is obtained.

[0033] It should be noted that the system stores a three-dimensional model of the construction area.

[0034] Similarly, the safety impact area is compared with the movement trajectory of the soil workers in each collection period to obtain the length of the second marking operation trajectory in each collection period; the safety impact area is compared with the movement trajectory of the soil pile in each collection period to obtain the length of the third marking operation trajectory in each collection period.

[0035] The length of the first marked operation trajectory, the length of the second marked operation trajectory and the length of the third marked operation trajectory in each acquisition period are input into the soil excavation operation safety assessment model, and the safety result of the soil excavation operation in the construction area is output. The safety result of the soil excavation operation in the construction area contains data of 1 and 0. When the safety result of the soil excavation operation in the construction area is 1, it indicates that the soil excavation operation in the construction area is safe. When the safety result of the soil excavation operation in the construction area is 0, it indicates that the soil excavation operation in the construction area is dangerous.

[0036] In the above, the calculation process of the safety result of soil excavation operation in the construction area is as follows: the length of the first marking operation trajectory, the length of the second marking operation trajectory and the length of the third marking operation trajectory in each acquisition period are respectively recorded as L1 t 、L2 t and L3 t , t represents the number of each collection period, and t is a positive integer.

[0037] Get the historical soil extraction records, set the proportional coefficient of the first marking operation trajectory, the proportional coefficient of the second marking operation trajectory, and the proportional coefficient of the third marking operation trajectory, which are denoted as ε 1 , ε 2 and ε 3 .

[0038] Among them, the length of the first marking operation trajectory, the length of the second marking operation trajectory and the length of the third marking operation trajectory in each collection period of each historical soil sampling are obtained from the historical soil sampling records, and then accumulated to obtain the total length of the first marking operation trajectory, the total length of the second marking operation trajectory and the total length of the third marking operation trajectory, and the total length of the first marking operation trajectory, the total length of the second marking operation trajectory and the total length of the third marking operation trajectory are divided by the sum of the total length of the first marking operation trajectory, the total length of the second marking operation trajectory and the total length of the third marking operation trajectory respectively to obtain the proportional coefficient of the first marking operation trajectory, the proportional coefficient of the second marking operation trajectory and the proportional coefficient of the third marking operation trajectory.

[0039] The safety assessment model of soil excavation operation is expressed as:

[0040] Where α represents the safety result of soil excavation operation in the construction area, p represents the number of sampling periods, and L1′ t , L2′ t , L3′ t They respectively represent the length of the moving trajectory of the earth-taking equipment, the length of the moving trajectory of the earth-taking worker, and the length of the moving trajectory of the earth pile in the tth collection period, and δ is the preset earth-taking safety assessment coefficient threshold.

[0041] The soil excavation safety assessment coefficient threshold is used to judge the threshold or critical value of soil excavation safety. It is discussed and set by multiple professionals based on the actual situation of the construction area and historical soil excavation data. When the calculated value is greater than the soil excavation safety assessment coefficient threshold, it indicates that the soil excavation operation is dangerous and the operator needs to be trained in soil excavation to improve the operational standardization of the soil excavation workers. For example, assuming that the soil excavation safety assessment coefficient threshold is 20, The calculated value is 18, 18<20, which indicates that the soil excavation operation is safe and the operation of the soil excavator is standardized.

[0042] In another specific embodiment, the analysis process of the safety of the beam string steel support is as follows: obtaining a set of operating data of the earth-taking equipment in the first marked operation trajectory in each acquisition period, calculating a first influence coefficient of the safety of the beam string steel support, obtaining the size of the soil pile at each position in the third marked operation trajectory in each acquisition period, and calculating a second influence coefficient of the safety of the beam string steel support.

[0043] In the above, the threshold value of the earth-taking equipment operation data corresponding to the safety of the steel support of the beam string is obtained from the server, which is recorded as Y. The operation data of each position of the earth-taking equipment in the first marked operation trajectory and the distance between each position and the target point are extracted from the operation data set of the earth-taking equipment in the first marked operation trajectory in each collection period, and are used as the operation data of the earth-taking equipment at each position in each collection period and the influence distance, which are recorded as Y respectively. tw and L tw , w represents the number of each position, w is a positive integer, substitute into the calculation formula: The first influence coefficient χ1 of the safety of the steel support of the beam string is obtained, where e represents the natural constant, L represents the radius of the safety influence area, and q represents the total number of positions.

[0044] In the above, the threshold value of the earth pile size that can be safely supported by the steel support of the beam string is obtained from the server, which is recorded as C, and the distance between each position of the earth pile and the target point in the third marking operation trajectory in each collection period is obtained, which is recorded as L t ' w At the same time, the size of the soil pile at each position in the third marking operation trajectory during each collection period is recorded as C tw , substitute into the calculation formula The second influence coefficient χ2 of the safety of the steel support of the beam string is obtained.

[0045] Obtain historical soil excavation records from the server, analyze the first and second influencing coefficients of the safety of the beam string steel support on the proportional coefficients of various types of collected data, obtain the safety thresholds of various types of collected data from the server, and calculate the safety result of the beam string steel support using the various types of collected data corresponding to the beam string steel support in each collection period, the safety thresholds of various types of collected data, and the first and second influencing coefficients of the safety of the beam string steel support on the proportional coefficients of various types of collected data. The safety result of the beam string steel support contains data of 1 and 0. When the safety result of the beam string steel support is 1, it indicates that the beam string steel support is safe. When the safety result of the beam string steel support is 0, it indicates that the beam string steel support is dangerous.

[0046] In the above, the values ​​of various collected data corresponding to each historical soil excavation, the first influence coefficient and the second influence coefficient of the safety of the historical beam string steel support are obtained from the historical soil excavation records, and the value sets of the first influence coefficient and the second influence coefficient of the safety of each historical beam string steel support corresponding to various collected data are statistically analyzed, and the value sets of the first influence coefficient and the second influence coefficient of the safety of the beam string steel support corresponding to various collected data are extracted, and the maximum value and the minimum value are selected. The maximum value is subtracted from the minimum value, and then divided by the minimum value to obtain the volatility of the first influence coefficient and the second influence coefficient on various collected data, and then the volatility of the first influence coefficient on various collected data is divided by the sum of the volatility of the first influence coefficient on various collected data to obtain the proportional coefficient of the first influence coefficient on various collected data, which is recorded as γ1 i And in the same way, the proportional coefficient of the second influence coefficient on each type of collected data is obtained, which is recorded as γ2 i , i represents the number of each type of collected data, and i is a positive integer.

[0047] The various types of collected data corresponding to the steel support of the beam string at each collection period and the safety thresholds of various types of collected data are respectively denoted as R ti and R t ′.

[0048] According to the analysis formula: Obtain the safety results of the steel support of the beam string Where φ represents the preset safety assessment threshold of the steel support of the beam string, and n represents the number of collected data types.

[0049] It should be noted that the safety assessment threshold of the beam string steel support is the critical value or threshold for judging whether the beam string steel support is safe. It is discussed and set by multiple professionals based on the actual situation of the construction area and historical soil excavation data. When the calculated data is greater than the safety assessment threshold of the beam string steel support, it indicates that the beam string steel support is dangerous and needs to be reinforced or adjusted. Otherwise, it indicates that the beam string steel support is safe. For example, if the safety assessment threshold of the beam string steel support is 15, The calculated data is 17, 17>15, indicating that the steel support of the beam string is dangerous and workers need to be dispatched to conduct further inspection and reinforcement of the steel support of the beam string.

[0050] In a specific embodiment, the analysis process of the management safety of the construction area is as follows: obtain a soil excavation plan from a server, obtain reference various monitoring data intervals of the soil body in each collection period from the soil excavation plan, and obtain a reference three-dimensional model and reference manual inspection data of the tensioned beam steel support in each collection period.

[0051] At the same time, the adjustment data of the beam string steel support in each collection period is imported into the three-dimensional model of the construction area to update the three-dimensional model of the beam string steel support in each collection period, and the reference three-dimensional model of the beam string steel support in each collection period is compared with the three-dimensional model to obtain the differential structural data of the beam string steel support in each collection period, and the management safety result of the construction area is calculated by using the reference monitoring data intervals, reference manual inspection data, various monitoring data, manual inspection data and differential structural data of the soil in each collection period. The management safety result of the construction area contains values ​​of 1 and 0. When the management safety result of the construction area is 1, it indicates that the management of the construction area is safe. When the management safety result of the construction area is 0, it indicates that the management of the construction area is dangerous.

[0052] The difference structure data is the data difference when the reference 3D model and the structure in the 3D model are different. For example, when the size of a certain structure in the reference 3D model and the 3D model is different, the size difference between the reference 3D model and the structure in the 3D model is the difference structure data.

[0053] In the above, the calculation process of the management safety result of the construction area is as follows: the reference monitoring data intervals of the soil body in each collection period are compared with the various monitoring data to obtain the differences of the various monitoring data of the soil body in each collection period, and the reference manual detection data of the soil body in each collection period is compared with the manual detection data to obtain the manual detection data differences of the soil body in each collection period; thus, the differences of the various monitoring data of the soil body in each collection period, the manual detection data differences and the difference structure data are normalized, and their values ​​are taken, which are respectively recorded as F1 tg 、F2 t and F3 t , g represents the number of each type of monitoring data.

[0054] According to the analysis formula Obtain management safety results for construction areas Where μ 1 , μ 2 , μ 3 They represent the set first proportional coefficient, second proportional coefficient, and third proportional coefficient respectively, κ represents the set management safety assessment coefficient threshold of the construction area, and s represents the number of monitoring data types.

[0055] It should be noted that the management safety assessment coefficient threshold of the construction area is the critical value or threshold for judging whether the management of the construction area is safe. It is discussed and set by multiple professionals based on the actual situation of the construction area and historical soil excavation data. When the calculated data is greater than the management safety assessment coefficient threshold of the construction area, it indicates that the management of the construction area is dangerous, that is, the management of the construction area is improper and the management of the construction area needs to be strengthened. Otherwise, it indicates that the management of the construction area is safe. For example, if the management safety assessment coefficient threshold of the construction area is 18, The calculated value is 17, and 17<18, which indicates that the management of the construction area is safe, that is, the management of the construction area is proper and there is no need to strengthen the management.

[0056] Preferably, various monitoring data differences, manual detection data differences and difference structure data of the soil body in each collection period of each historical soil collection are obtained from the historical soil collection records, and the maximum monitoring data difference and the minimum monitoring data difference are selected, which are recorded as a1 and a2 respectively, and the calculation formula is used to calculate The first difference rate b1 is obtained, and the soil manual detection data difference and difference structure data in each collection period of each historical soil sampling are analyzed according to the first difference rate to obtain the second difference rate and the third difference rate, which are recorded as b2 and b3 respectively.

[0057]

[0058] In a specific embodiment, the comprehensive analysis of the construction safety of the beam string steel support during soil excavation is performed as follows: when at least one of the soil excavation operation in the construction area, the beam string steel support and the management of the construction area is dangerous, it indicates that the construction safety of the beam string steel support during soil excavation is insufficient.

[0059] S4. Implement corresponding construction management plan for the construction safety of steel beam string support during soil excavation.

[0060] In the above, when there is danger in the earth-taking operation in the construction area, the construction management plan is to provide earth-taking training for the earth-taking workers and standardize the earth-taking workers' operations; when there is danger in the steel support of the beam string, the management personnel are promptly reminded to dispatch workers to conduct emergency inspections of the steel support of the beam string, and to reinforce and adjust the structure; when there is danger in the management of the construction area, the management personnel are reminded to strengthen the management of the construction area, and reminder equipment is set up to remind the earth-taking workers in the construction area to construct efficiently and safely.

[0061] See also Figure 2As shown, a safety assessment system for assembled steel beam string supports includes: a first monitoring module, which is used to arrange a number of collection time periods according to a preset soil excavation plan during a soil excavation process, collect soil excavation video data in the construction area in each collection time period, and install a number of collection devices in the construction area at the same time, and use the collection devices to collect monitoring data corresponding to the steel beam string supports in each collection time period and basic data of the soil in each collection time period according to a preset collection frequency, and send them to the data analysis module.

[0062] The worker monitoring module is used by earthwork workers to upload the adjustment data and manual inspection data of the steel support of the beam string in each collection period according to the requirements of the earthwork plan when earthwork workers are taking earth.

[0063] The data analysis module is used to receive the earth-taking video data of each collection period, the monitoring data corresponding to the beam-string steel support in each collection period and the basic data of the soil in each collection period, and perform data processing. At the same time, the adjustment data and manual inspection data of the beam-string steel support in each collection period are used to analyze the safety of earth-taking operations in the construction area, the safety of the beam-string steel support and the management safety of the construction area, and comprehensively analyze the construction safety of the beam-string steel support when taking soil.

[0064] The execution module is used to execute the corresponding construction management plan for the construction safety of the steel support of the tensioned beam during soil excavation.

[0065] When taking soil, the embodiment of the present invention monitors the beam string steel support and the soil, monitors the construction site, increases the monitoring interaction of workers, analyzes the safety of soil taking operation in the construction area, the safety of the beam string steel support and the management safety of the construction area, and performs corresponding management, thereby realizing multi-dimensional monitoring of the safety assessment of the beam string steel support, improving the reliability and reference of the safety assessment result of the beam string steel support, ensuring the safety of equipment operation and soil taking operation in the construction site, improving the management efficiency and management effect of the construction site, ensuring the safety of the beam string steel support and the soil, improving the stability of the beam string steel support, and reducing the risk of accidents at the construction site.

[0066] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art 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 concept of the invention or exceed the scope defined in this specification, they shall all fall within the protection scope of the present invention.

Claims

1. A safety assessment method for assembled beam string steel support, characterized in that: The steps include: S1. In a soil excavation process, several collection periods are arranged according to a preset soil excavation plan, and the soil excavation video data of the construction area in each collection period is collected. At the same time, several collection devices are installed in the construction area, and the monitoring data corresponding to the steel support of the tensile beam in each collection period and the basic data of the soil in each collection period are collected by the collection devices according to the preset collection frequency, and then transmitted to the server; S2. When taking soil, the soil workers upload the adjustment data and manual inspection data of the steel support of the beam string in each collection period according to the requirements of the soil taking plan; S3, the server receives the soil excavation video data of each acquisition period, the monitoring data corresponding to the beam string steel support in each acquisition period, and the basic data of the soil in each acquisition period, and performs data processing, and at the same time uses the adjustment data and manual detection data of the beam string steel support in each acquisition period to analyze the safety of soil excavation operation in the construction area, the safety of the beam string steel support, and the management safety of the construction area, and comprehensively analyzes the construction safety of the beam string steel support when excavating soil; S4. Implement corresponding construction management plan for the construction safety of steel beam string support during soil excavation.

2. A safety assessment method for a prefabricated beam string steel support according to claim 1, characterized in that: The data processing process in S2 is as follows: S2-1, dividing the earth-taking video data of each acquisition period into each video screen, and obtaining the position of the earth-taking equipment, the position of the earth-taking worker, and the position and size of the earth pile from each video screen through image recognition technology; importing the position of the earth-taking equipment in each video screen corresponding to each acquisition period into the three-dimensional model of the construction area in sequence, generating the movement trajectory of the earth-taking equipment in each acquisition period, and similarly generating the movement trajectory of the earth-taking worker and the movement trajectory of the earth pile in each acquisition period; S2-2. The monitoring data is composed of data collected by various collection devices. The type corresponding to each collection device is obtained, and the monitoring data corresponding to the steel support of the tensioned beam in each collection period is classified into various types of collection data according to the type corresponding to each collection device. Similarly, the basic data of the soil in each collection period is classified into various types of monitoring data.

3. A safety assessment method for a prefabricated beam string steel support according to claim 1, characterized in that: The analysis process of the safety of soil excavation operation in the construction area is as follows: Based on the three-dimensional model of the construction area, the position closest to the earth-taking area in the steel support of the beam string is selected as the target point, and a circle is drawn with the target point as the center and the preset safety interval as the radius. The area inside the circle is the safety impact area. The safety impact area is compared with the moving trajectory of the earth-taking equipment in each collection period, and the part where the safety impact area overlaps with the moving trajectory is selected as the first marking operation trajectory, and the length of the first marking operation trajectory in each collection period is obtained; Similarly, the safety impact area is compared with the movement trajectory of the soil workers in each collection period to obtain the length of the second marking operation trajectory in each collection period; the safety impact area is compared with the movement trajectory of the soil pile in each collection period to obtain the length of the third marking operation trajectory in each collection period; The length of the first marked operation trajectory, the length of the second marked operation trajectory and the length of the third marked operation trajectory in each acquisition period are input into the soil excavation operation safety assessment model, and the safety result of the soil excavation operation in the construction area is output. The safety result of the soil excavation operation in the construction area contains data of 1 and 0. When the safety result of the soil excavation operation in the construction area is 1, it indicates that the soil excavation operation in the construction area is safe. When the safety result of the soil excavation operation in the construction area is 0, it indicates that the soil excavation operation in the construction area is dangerous.

4. A safety assessment method for a prefabricated beam string steel support according to claim 3, characterized in that: The calculation process of the safety result of soil excavation operation in the construction area is as follows: The length of the first marking operation trajectory, the length of the second marking operation trajectory, and the length of the third marking operation trajectory in each acquisition period are respectively recorded as L1 t 、L2 t and L3 t , t represents the number of each collection period, and t is a positive integer; Obtain historical soil excavation records, set the proportional coefficient of the first marking operation trajectory, the proportional coefficient of the second marking operation trajectory, and the proportional coefficient of the third marking operation trajectory, which are recorded as ε1, ε2, and ε3 respectively; The safety assessment model of soil excavation operation is expressed as: Where α represents the safety result of soil excavation operation in the construction area, p represents the number of sampling periods, and L1′ t , L2′ t , L3′ t They respectively represent the length of the moving trajectory of the earth-taking equipment, the length of the moving trajectory of the earth-taking worker, and the length of the moving trajectory of the soil pile in the tth collection period, and δ is the preset earth-taking safety assessment coefficient threshold.

5. A safety assessment method for a prefabricated beam string steel support according to claim 4, characterized in that: The analysis process of the safety of the beam string steel support is as follows: Obtaining a set of operating data of the earth-taking equipment in the first marked operation trajectory in each acquisition period, calculating a first influence coefficient of the safety of the steel support of the beam string, obtaining the size of the soil pile at each position in the third marked operation trajectory in each acquisition period, and calculating a second influence coefficient of the safety of the steel support of the beam string; Obtain historical soil excavation records from the server, analyze the first and second influencing coefficients of the safety of the beam string steel support on the proportional coefficients of various types of collected data, obtain the safety thresholds of various types of collected data from the server, and calculate the safety result of the beam string steel support using the various types of collected data corresponding to the beam string steel support in each collection period, the safety thresholds of various types of collected data, and the first and second influencing coefficients of the safety of the beam string steel support on the proportional coefficients of various types of collected data. The safety result of the beam string steel support contains data of 1 and 0. When the safety result of the beam string steel support is 1, it indicates that the beam string steel support is safe. When the safety result of the beam string steel support is 0, it indicates that the beam string steel support is dangerous.

6. A safety assessment method for a prefabricated beam string steel support according to claim 5, characterized in that: The calculation process of the safety result of the beam string steel support is as follows: The influence ratio coefficient of the first influence coefficient on each type of collected data and the influence ratio coefficient of the second influence coefficient on each type of collected data are denoted as γ1 i and γ2 i , i represents the number of each type of collected data, i is a positive integer; The various types of collected data corresponding to the steel support of the beam string at each collection period and the safety thresholds of various types of collected data are respectively denoted as R ti and R t ′; According to the analysis formula: Obtain the safety results of the steel support of the beam string Where φ represents the preset safety assessment threshold of the steel support of the beam string, and n represents the number of collected data types.

7. A safety assessment method for a prefabricated beam string steel support according to claim 1, characterized in that: The analysis process of the management safety of the construction area is as follows: Obtaining a soil sampling plan from the server, and obtaining reference monitoring data intervals of various types of soil bodies in each sampling period, as well as reference three-dimensional models and reference manual inspection data of the steel support of the beam string in each sampling period from the soil sampling plan; At the same time, the adjustment data of the beam string steel support in each collection period is imported into the three-dimensional model of the construction area to update the three-dimensional model of the beam string steel support in each collection period, and the reference three-dimensional model of the beam string steel support in each collection period is compared with the three-dimensional model to obtain the differential structural data of the beam string steel support in each collection period, and the management safety result of the construction area is calculated by using the reference monitoring data intervals, reference manual inspection data, various monitoring data, manual inspection data and differential structural data of the soil in each collection period. The management safety result of the construction area contains values ​​of 1 and 0. When the management safety result of the construction area is 1, it indicates that the management of the construction area is safe. When the management safety result of the construction area is 0, it indicates that the management of the construction area is dangerous.

8. A safety assessment method for a prefabricated beam string steel support according to claim 7, characterized in that: The calculation process of the management safety results of the construction area is as follows: Compare the reference monitoring data intervals of the soil body in each collection period with the various monitoring data to obtain the difference of various monitoring data of the soil body in each collection period, and at the same time compare the reference manual detection data of the soil body in each collection period with the manual detection data to obtain the difference of manual detection data of the soil body in each collection period; Therefore, the differences of various monitoring data, manual detection data and differential structure data of the soil in each collection period are normalized and their values ​​are taken, which are recorded as F1 and F2. tg 、F2 t and F3 t , g represents the number of each type of monitoring data; According to the analysis formula Obtain management safety results for construction areas Wherein μ1, μ2, and μ3 represent the first, second, and third proportional coefficients, respectively; κ represents the management safety assessment coefficient threshold of the set construction area; and s represents the number of monitoring data types.

9. A safety assessment method for a prefabricated beam string steel support according to claim 1, characterized in that: The comprehensive analysis of the construction safety of the steel support beam string during soil excavation is as follows: When at least one of the earth-excavation operation in the construction area, the beam-string steel support and the management of the construction area is dangerous, it indicates that the construction safety of the beam-string steel support during earth-excavation is insufficient.

10. A safety assessment system for executing the safety assessment method for a prefabricated beam string steel support according to any one of claims 1 to 9, characterized in that: include: The first monitoring module is used to arrange several collection time periods according to a preset soil collection plan during a soil collection process, collect soil collection video data of the construction area in each collection time period, and install several collection devices in the construction area. The collection devices are used to collect monitoring data corresponding to the steel support of the tensioned beam in each collection time period and basic data of the soil in each collection time period according to a preset collection frequency, and send them to the data analysis module; The worker monitoring module is used by earthwork workers to upload the adjustment data and manual inspection data of the steel support of the beam string in each collection period according to the requirements of the earthwork plan when earthwork workers are taking earth; The data analysis module is used to receive the soil excavation video data of each acquisition period, the monitoring data corresponding to the beam string steel support in each acquisition period, and the basic data of the soil in each acquisition period, and perform data processing. At the same time, the adjustment data and manual detection data of the beam string steel support in each acquisition period are used to analyze the safety of soil excavation operation in the construction area, the safety of the beam string steel support, and the management safety of the construction area, and comprehensively analyze the construction safety of the beam string steel support when excavating soil; The execution module is used to execute the corresponding construction management plan for the construction safety of the steel support of the tensioned beam during soil excavation.

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