Evaluation method for relationship between power consumption and construction production in railway tunnel construction

Abstract

The application provides a railway tunnel construction electricity consumption and construction production relationship evaluation method, which comprises the following steps: collecting data including the types of construction equipment, construction positions, processes, technologies and surrounding rock grade parameters of tunnel construction in each time period, and electricity consumption data of each construction equipment; calculating the completed engineering quantity data of each construction equipment in each time period; based on the electricity consumption data and the engineering quantity data of the construction equipment in each time period, analyzing the construction electricity consumption and the actual construction development in at least one tunnel construction period, obtaining the time balance point between the construction electricity consumption and the engineering quantity, and obtaining the electricity consumption threshold of each construction equipment in each time period based on the time balance point; and controlling the electricity consumption of each construction equipment in each time period of the current tunnel construction period so that it does not exceed the electricity consumption threshold of each construction equipment in the corresponding time period. Based on the evaluation method provided by the application, the effect of saving electricity and reducing construction cost can be achieved on the basis of ensuring construction quality.

Description

Technical Field

[0001] This invention relates to the field of engineering construction management technology, and in particular to a method for evaluating the relationship between electricity consumption and construction production in railway tunnel construction. Background Technology

[0002] Electricity, as a major component of energy consumption in railway engineering construction, serves as a reflection of whether essential aspects of the project are proceeding normally and in an orderly manner. In complex and challenging areas, infrastructure along the railway lines is weak, and the climate conditions in the power-consuming regions are harsh, resulting in poor power supply conditions for construction.

[0003] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art:

[0004] Railway tunnel construction in complex and challenging areas involves numerous pieces of equipment, many of which operate on a mobile basis. As tunnel excavation progresses and power lines lengthen, the difficulty of managing the power supply and usage of construction equipment increases. Given the characteristics of railway construction along complex and challenging routes, there is an urgent need for intelligent hardware and related technologies for metering, monitoring, and evaluating construction power supply and usage. These technologies, combined with project construction information, can provide decision support for auxiliary construction power supply and usage management.

[0005] Meanwhile, the negative impact of power quality issues on construction equipment has not received sufficient attention. Power quality problems affect the performance indicators of construction equipment, reducing the efficiency and lifespan of construction machinery. Different power quality indicators have different effects on construction equipment, and there is no accurate quantitative evaluation mechanism for the impact of multiple power quality indicator combinations on construction equipment.

[0006] Therefore, there is a need for a method to assess the relationship between electricity consumption and construction production in railway tunnel construction, as well as an intelligent control method and system for electricity consumption in railway tunnel construction using this method, in order to at least partially solve the above-mentioned technical problems. Summary of the Invention

[0007] In view of this, embodiments of the present invention provide a method for evaluating the relationship between electricity consumption and construction production in railway tunnel construction, so as to at least solve one of the problems in the prior art.

[0008] One aspect of the present invention provides a method for evaluating the relationship between electricity consumption and construction production in railway tunnel construction. This method utilizes an intelligent power control system for railway tunnel construction. The system includes a construction data acquisition module, a workload calculation module, a data analysis module, and an intelligent linkage module. The evaluation method includes: the construction data acquisition module collecting the following data: the type of construction equipment, construction location, procedures, technology, and surrounding rock grade parameters for tunnel construction in each time period, as well as collecting electricity consumption data for each construction equipment, and transmitting the above data to the data analysis module; the workload calculation module calculating the completed workload data for each construction equipment in each time period and transmitting it to the data analysis module; the data analysis module analyzing the construction electricity consumption and actual construction progress based on the construction equipment electricity consumption data and workload data in each time period, at least within one tunnel construction cycle, to obtain a time balance point between construction electricity consumption and workload, and obtaining the electricity consumption threshold for each construction equipment in each time period based on the time balance point; and the intelligent linkage module intelligently controlling the electricity consumption of each construction equipment in each time period of the current tunnel construction cycle from the power supply side, ensuring that it does not exceed the corresponding electricity consumption threshold for each construction equipment in that time period.

[0009] In some embodiments of the present invention, the construction data acquisition module includes:

[0010] The basic construction information collection module is used to collect information on tunnel construction at different time periods, including: the type of construction equipment, construction location, procedures, technology, and surrounding rock grade parameters, and transmit them to the data analysis module.

[0011] The power consumption data acquisition module for construction equipment is used to collect power consumption data of each piece of construction equipment and transmit it to the data analysis module.

[0012] In some embodiments of the present invention, the construction data acquisition module further includes:

[0013] The power quality acquisition module is used to collect and calculate power quality indicators for construction power supply, including voltage deviation, frequency deviation, three-phase unbalance, harmonics, voltage fluctuation, and flicker, and transmit them to the data analysis module.

[0014] In some embodiments of the present invention, the power consumption acquisition module for construction equipment adopts a smart meter, which collects power consumption data of each piece of construction equipment at predetermined time intervals and transmits it to a data analysis module; and / or

[0015] The power quality acquisition module adopts an online power quality monitoring device. The online power quality monitoring device automatically collects and calculates power quality indicators for construction power supply, including voltage deviation, frequency deviation, three-phase unbalance, harmonics, voltage fluctuation, and flicker, at predetermined time intervals, and transmits them to the data analysis module.

[0016] In some embodiments of the present invention, the quantity calculation module automatically calculates the completed quantity of each project based on the project list and the actual construction progress in each time period by constructing a digital BIM platform. After allocation, it obtains the completed quantity of each construction equipment corresponding to each project in each time period and transmits it to the data analysis module at predetermined time intervals.

[0017] In some embodiments of the present invention, the data analysis module is further used to determine the power quality level of tunnel construction power supply based on the power quality index of construction power supply, and to screen out abnormal power quality indexes that are lower than those specified in the national standards.

[0018] The power quality grades for tunnel construction power supply are classified into five levels: excellent, good, fair, average, and poor. The specific details are as follows:

[0019] Advantages: Voltage allowable deviation ≤ ±3%, frequency deviation limit ≤ ±0.1Hz, three-phase voltage unbalance ≤ 1.3%, total harmonic distortion rate ≤ 1%, and long-term flicker limit ≤ 0.7;

[0020] Excellent: Voltage tolerance ≤ ±5%, frequency deviation limit ≤ ±0.2Hz, three-phase voltage imbalance ≤ 1.3%, total harmonic distortion ≤ 2%, and long-term flicker limit ≤ 0.7.

[0021] Good: Permissible voltage deviation ≤ ±7%, frequency deviation limit ≤ ±0.5Hz, permissible three-phase voltage imbalance ≤ 2%, total harmonic distortion rate ≤ 3%, and long-term flicker limit ≤ 1;

[0022] Generally: voltage tolerance ≤ ±10%, frequency deviation limit ≤ ±1Hz, three-phase voltage unbalance ≤ 3%, total harmonic distortion ≤ 4%, and long-term flicker limit ≤ 1.3;

[0023] Differences: Permissible voltage deviation ≥ ±10%, frequency deviation limit ≥ ±1Hz, permissible three-phase voltage imbalance ≥ 3%, total harmonic distortion rate ≥ 5%, and long-term flicker limit ≥ 1.3;

[0024] The power quality ratings for tunnel construction power supply (excellent, good, and average) only show one side of the boundary values. This means their actual values ​​fall between the relevant indicators of adjacent ratings. For example, excellent ratings are defined as: ±3% < permissible voltage deviation ≤ ±5%, ±0.1Hz < frequency deviation limit ≤ ±0.2Hz, three-phase voltage unbalance ≤ 1.3%, 1% < total harmonic distortion ≤ 2%, and long-term flicker limit ≤ 0.7%. Abnormal power quality indicators below the national standards refer to those for tunnel construction power supply (average and poor ratings).

[0025] In some embodiments of the present invention, the intelligent linkage module includes a power consumption intelligent control unit:

[0026] The intelligent power consumption control unit is used to intelligently control the power consumption of each construction equipment during each time period of the current tunnel construction cycle from the power supply side, so that it does not exceed the power consumption threshold of each construction equipment during the corresponding time period; and / or

[0027] The intelligent power consumption control unit is used to adjust abnormal power quality indicators to normal values.

[0028] In some embodiments of the present invention, the intelligent linkage module further includes:

[0029] The data recording unit is used to record the data collection and analysis results for all time periods for later retrieval; and / or

[0030] The data query unit is used to query all data in the data record unit; and / or

[0031] The power quality early warning unit is used to provide early warnings on the power quality of the power supply for tunnel construction based on the power quality level. This includes: issuing an alarm when the power quality level is lower than good; and triggering the construction equipment to stop its continued use when the power quality level is poor.

[0032] Another aspect of the present invention provides a method for intelligent power control in railway construction, particularly railway tunnel construction, the method comprising:

[0033] The data collected includes the following: the types of construction equipment, construction locations, procedures, technologies, and surrounding rock grade parameters for tunnel construction in each time period, as well as the electricity consumption data of each construction equipment;

[0034] Calculate the amount of work completed by each construction device within each time period;

[0035] Based on the electricity consumption data of construction equipment and the amount of work in each time period, the electricity consumption and actual construction progress are analyzed within at least one tunnel construction cycle to obtain the time balance point between the electricity consumption and the amount of work. Based on the time balance point, the electricity consumption threshold of each construction equipment in each time period is obtained.

[0036] By intelligently controlling the power consumption of each construction equipment during different time periods of the current tunnel construction cycle from the power supply side, the power consumption of each construction equipment is kept within the corresponding time period threshold.

[0037] In some embodiments of the present invention, obtaining the time balance point between construction power consumption and project volume, and obtaining the power consumption threshold of each construction equipment in each time period based on the time balance point, includes: analyzing the relationship between the growth of construction power consumption of each construction equipment and the corresponding growth of construction project volume in each time period; when the construction power consumption of the construction equipment at a certain time point in a time period exceeds a certain power consumption value, and the construction project volume in that time period no longer increases thereafter, that time point is the time balance point between construction power consumption and project volume, and that power consumption value is the power consumption threshold of the construction equipment in that time period.

[0038] In some embodiments of the present invention, the method further includes:

[0039] The data collected and calculated include: voltage deviation, frequency deviation, three-phase unbalance, harmonics, voltage fluctuation, and flicker power quality indicators for construction power supply.

[0040] Based on the power quality indicators for construction power supply, the power quality level of tunnel construction power supply is classified. The power quality level of tunnel construction power supply includes five levels: excellent, good, fair, average and poor. Abnormal power quality indicators that are lower than those specified in the national standards are also screened out.

[0041] By adjusting abnormal power quality indicators to normal values;

[0042] The system provides early warnings based on the power quality level of the power supply for tunnel construction, including: issuing an alarm when the power quality level is below good; and linking the construction equipment to prevent it from continuing to be used when the power quality level is poor.

[0043] According to the railway tunnel construction power consumption and construction production relationship assessment method of the present invention, in the corresponding intelligent power consumption control method and system for railway tunnel construction, the power consumption of each construction equipment in each time period is intelligently monitored. Combining the construction equipment's workload data and basic construction data, the inherent relationship between the power consumption and workload of construction equipment under different construction locations, procedures, processes, and surrounding rock grades is explored. The time balance point of construction power consumption and workload is obtained, and based on the time balance point, the power consumption threshold of each construction equipment in each time period is obtained. Under the premise of ensuring construction quality, the power supply side intelligently controls the power consumption of construction equipment to not exceed the corresponding time period's power consumption threshold, thereby achieving energy conservation and emission reduction. This is conducive to promoting intelligent management of railway construction power consumption and reducing construction costs. In addition, the system monitors the power quality of tunnel construction power consumption, comprehensively analyzes and evaluates the power quality of tunnel construction power supply based on multiple power quality indicators, and proposes targeted optimization and management measures based on abnormal power quality indicators. This is conducive to ensuring the safe and stable operation of construction equipment and improving equipment operating efficiency and service life.

[0044] Additional advantages, objects, and features of the invention will be set forth in part in the description which follows, and will also become apparent in part to those skilled in the art upon studying the description, or may be learned by practice of the invention. The objects and other advantages of the invention can be realized and obtained by means of the structures specifically pointed out in the description and drawings.

[0045] Those skilled in the art will understand that the objectives and advantages achievable with the present invention are not limited to those specifically described above, and that the above and other objectives achievable with the present invention will become clearer from the following detailed description. Attached Figure Description

[0046] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, are not intended to limit the scope of the invention. The components in the drawings are not drawn to scale but are merely illustrative of the principles of the invention. For ease of illustration and description of certain parts of the invention, corresponding portions in the drawings may be enlarged, i.e., may appear larger relative to other components in an exemplary device actually manufactured according to the invention. In the drawings:

[0047] Figure 1 This is a schematic block diagram illustrating the method for evaluating the relationship between electricity consumption and construction production in railway tunnel construction according to an embodiment of the present invention.

[0048] Figure 2 This is a schematic diagram of a smart meter collecting electricity consumption data of construction equipment in one embodiment of the method for evaluating the relationship between electricity consumption and construction production in railway tunnel construction according to the present invention;

[0049] Figure 3 This is a flowchart of an intelligent control method for electricity consumption in railway tunnel construction, as described in one embodiment of the railway tunnel construction electricity consumption and construction production relationship assessment method of the present invention.

[0050] Figure 4 This is a partial flowchart of the intelligent control method for electricity consumption in railway tunnel construction, as described in one embodiment of the method for evaluating the relationship between electricity consumption and construction production in railway tunnel construction according to the present invention.

[0051] Figure 5 A flowchart of an intelligent control method for electricity consumption in railway tunnel construction is shown in another embodiment of the method for evaluating the relationship between electricity consumption and construction production in railway tunnel construction according to the present invention.

[0052] Figure 6 This is a schematic block diagram of an intelligent control electronic device for railway tunnel construction power consumption in one embodiment of the railway tunnel construction power consumption and construction production relationship assessment method of the present invention.

[0053] Figure 7This is a schematic block diagram of an intelligent control device for railway tunnel construction power consumption in one embodiment of the railway tunnel construction power consumption and construction production relationship assessment method of the present invention. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this invention are used to explain the invention, but are not intended to limit the invention.

[0055] It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the invention are shown in the accompanying drawings, while other details that are not closely related to the invention are omitted.

[0056] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps, or components.

[0057] It should also be noted that, unless otherwise specified, the term "connection" in this article can refer not only to a direct connection, but also to an indirect connection involving an intermediary.

[0058] In the following description, embodiments of the invention will be illustrated with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar parts, or the same or similar steps.

[0059] First, refer to Figure 1 This application describes a railway tunnel construction power consumption intelligent control system 100 used in the railway tunnel construction power consumption and construction production relationship assessment method according to an embodiment of this application. For example... Figure 1 As shown, the intelligent power control system 100 for railway tunnel construction may include:

[0060] The construction data acquisition module 110 is used to collect the following data: the types of construction equipment, construction locations, procedures, processes and surrounding rock grade parameters of tunnel construction in each time period, as well as the power consumption data of each construction equipment, and transmit the above data to the data analysis module 130.

[0061] The quantity calculation module 120 is used to calculate the quantity of work completed by each construction equipment in each time period and transmit it to the data analysis module 130.

[0062] The data analysis module 130 analyzes the power consumption of construction equipment and the actual progress of construction within at least one tunnel construction cycle based on the power consumption data of construction equipment and the amount of work in each time period, obtains the time balance point between power consumption and the amount of work, and obtains the power consumption threshold of each construction equipment in each time period based on the time balance point.

[0063] The intelligent linkage module 140 is used to intelligently regulate the power consumption of each construction equipment in each time period of the current tunnel construction cycle from the power supply side, so that it does not exceed the power consumption threshold of each construction equipment in the corresponding time period.

[0064] In the embodiments of this application, the construction data acquisition module 110 first collects the following data: the types of construction equipment, construction locations, procedures, processes, and surrounding rock grade parameters for tunnel construction in each time period, as well as the power consumption data of each construction equipment, and transmits the above data to the data analysis module. Next, the engineering quantity calculation module 120 calculates the completed engineering quantity data of each construction equipment in each time period and transmits it to the data analysis module. Then, the data analysis module 130 analyzes the construction power consumption and actual construction progress based on the construction equipment power consumption data and engineering quantity data in each time period, at least within one tunnel construction cycle, to obtain the time balance point between construction power consumption and engineering quantity, and obtains the power consumption threshold for each construction equipment in each time period based on the time balance point. Finally, the intelligent linkage module 140 intelligently regulates the power consumption of each construction equipment in each time period of the current tunnel construction cycle from the power supply side, ensuring that it does not exceed the power consumption threshold for each construction equipment in the corresponding time period. A tunnel construction cycle, for example, is a working day of 8 hours, and a tunnel construction cycle can be divided into multiple time periods, such as a time period of 1 hour or 2 hours.

[0065] As described above, the intelligent power control system 100 for railway tunnel construction according to this application embodiment monitors the power consumption of each construction equipment in each time period. Combining the engineering quantity data of the construction equipment and the basic construction data, it explores the intrinsic relationship between the power consumption of the construction equipment and the engineering quantity under different construction locations, procedures, processes and surrounding rock grades, obtains the time balance point of the construction power consumption and the engineering quantity, and obtains the power consumption threshold of each construction equipment in each time period based on the time balance point. Under the premise of ensuring construction quality, it intelligently controls the power consumption of the construction equipment from the power supply side to not exceed the power consumption threshold of each construction equipment in the corresponding time period, so as to achieve the purpose of energy conservation and emission reduction, which is conducive to promoting the intelligent management of power consumption in railway engineering construction and reducing construction costs.

[0066] The construction data acquisition module 110 can be a single module, capable of collecting data including: the types of construction equipment, construction locations, procedures, technologies, and surrounding rock grade parameters for tunnel construction in each time period, as well as the power consumption data of each construction equipment. Alternatively, the construction data acquisition module 110 can consist of multiple modules, each collecting its own data, thus improving data collection efficiency and avoiding mutual interference. Preferably, the construction data acquisition module 110 may include a basic construction information acquisition module 111 and a construction equipment power consumption acquisition module 112. The basic construction information acquisition module collects data on the types of construction equipment, construction locations, procedures, technologies, and surrounding rock grade parameters for tunnel construction in each time period and transmits this data to the data analysis module. The construction equipment power consumption acquisition module collects the power consumption data of each construction equipment and transmits it to the data analysis module. The basic construction information acquisition module can be implemented using various electronic devices, such as cameras, various sensors, and smart terminals, or it can be implemented through on-site collection by staff and then entered into the system. The types of construction equipment vary depending on the requirements of each tunnel construction project and generally include advanced small-diameter drilling machines, three-hole wall-drilling trolleys, wet spraying machines, waterproofing membrane trolleys, invert arch trolleys, secondary lining trolleys, curing trolleys, welding machines, water pumps, ventilation equipment, and other electrical equipment. The power consumption of construction equipment can be collected via smart meters. For example... Figure 2 As shown, n represents the nth type of construction equipment used in tunnel construction, such as a rock drilling rig, lining rig, mobile concrete spraying machine, water pump, welding machine, etc., and An represents the electricity consumption of the nth type of construction equipment collected by the smart meter within a certain time period. The smart meter can collect electricity consumption data for each construction equipment at predetermined time intervals. By collecting this data at predetermined intervals, the detailed growth of electricity consumption by the construction equipment within a time period can be understood. For example, a time period may be 1 hour or 1 hour, and the predetermined time interval may be 5 minutes or 10 minutes. The smart meter can be installed at the location of each construction equipment within the tunnel.

[0067] The main construction procedures for tunnels include: pre-support, excavation, initial support (shotcrete), invert, and secondary lining. Smart meters are installed on the construction equipment corresponding to each of these main construction procedures to collect real-time electricity consumption data. The first calculation method focuses on the electricity consumption of pre-support, excavation, drainage, and ventilation for the same tunnel (as the electricity consumption for later procedures such as invert, secondary lining, and curing is less related to the surrounding rock grade). The average electricity consumption per meter under different surrounding rock grades is calculated as: q1 = (Q1 + Q2 + ...) / L; where: q1 is the electricity consumption per meter for different surrounding rock grades, Q1 is the total electricity consumption for the first section of surrounding rock, Q2 is the electricity consumption for the second section of the same surrounding rock, and L is the total length of the same surrounding rock grade. By comparing the average electricity consumption per meter q1, q2, ... for different surrounding rock grades, the difficulty of tunnel construction under different surrounding rock conditions is assessed. The second calculation method is longitudinal comparison. For the same tunnel using the same construction techniques, this method compares the electricity consumption for the same amount of excavation work over time and with the progress of excavation. For example, it compares the electricity consumption for ventilation when excavating 100m versus 500m, assessing the relationship between the increase in electricity consumption and the excavation length, and drawing a relationship diagram. The third calculation method is lateral comparison. This method calculates the electricity consumption for the same excavation progress at different working faces, such as main tunnels, inclined shafts, and cross tunnels. Generally, 200m is considered a unit of excavation progress, calculating the total electricity consumption for each working face during a 200m excavation. Electricity consumption can assess the management level of the work team and directly reflect the construction environment at different working faces, such as the presence of reverse slope drainage.

[0068] In the embodiments of this application, the quantity calculation module 120 calculates the completed work volume data of each construction equipment within each time period. This can be achieved by constructing a digital BIM platform, which automatically calculates the completed work volume of each project based on the project list and the actual construction progress within each time period. After allocation, the completed work volume of each construction equipment corresponding to each project within each time period is obtained. The digital BIM platform is existing technology in this industry. It constructs a refined tunnel BIM model and simulates the construction progress, automatically calculating the completed work volume of each project based on the project list and the actual construction progress within each time period, and then allocating the completed work volume of each construction equipment within each time period. For example, if the lining project work volume is calculated as X1 within a certain time period based on the digital BIM platform, then the corresponding lining trolley work volume is also X1; if the concrete project work volume is calculated as Y1 within a certain time period based on the digital BIM platform, then the corresponding mobile concrete spraying machine work volume is also Y1; if the welding project work volume is calculated as Z1 within a certain time period based on the digital BIM platform, then the corresponding welding machine work volume is also Z1. Of course, in order to understand the detailed growth of the amount of work completed by construction equipment within a certain period of time, the digital BIM platform also transmits the amount of work completed by each construction equipment in each time period to the data analysis module at predetermined time intervals.

[0069] In the embodiments of this application, the data analysis module 130 analyzes the power consumption and actual construction progress of construction equipment based on the power consumption data and project volume data of construction equipment in each time period, at least within one tunnel construction cycle, to obtain the time balance point between power consumption and project volume, and obtains the power consumption threshold of each construction equipment in each time period based on the time balance point. The data analysis module can use intelligent terminals such as industrial control computers and PCs. Specifically, the method for obtaining the time balance point between power consumption and project volume, and obtaining the power consumption threshold of each construction equipment in each time period based on the time balance point, can be as follows: analyze the relationship between the growth of power consumption of each construction equipment and the corresponding construction volume in each time period; when the power consumption of the construction equipment at a certain point in a certain time period exceeds a certain power consumption value, and the construction volume in that time period no longer increases, then that point in time is the time balance point between power consumption and project volume, and that power consumption value is the power consumption threshold of the construction equipment in that time period.

[0070] In the embodiments of this application, the intelligent linkage module 140 intelligently regulates the power consumption of each construction device during each time period of the current tunnel construction cycle from the power supply side, ensuring that it does not exceed the power consumption threshold of each construction device during the corresponding time period. The intelligent linkage module may include a power consumption intelligent regulation unit 141. This unit intelligently regulates the power consumption of each construction device during each time period of the current tunnel construction cycle from the power supply side, ensuring that it does not exceed the power consumption threshold of each construction device during the corresponding time period. The intelligent linkage module and / or the power consumption intelligent regulation unit may also still be intelligent terminals such as industrial control computers or PCs. Ensuring that the power consumption does not exceed the power consumption threshold of each construction device during the corresponding time period means that if the power consumption of a certain construction device reaches the power consumption threshold for that construction device during a certain time period, then the power supply side will cut off the power to that construction device.

[0071] Power quality issues can affect the performance of construction equipment, reducing its efficiency and lifespan. (Still referencing...) Figure 1In a preferred embodiment, the intelligent power control system 100 for railway tunnel construction of this application may further include a power quality acquisition module 113 within the construction data acquisition module 110. The power quality acquisition module is used to collect and calculate power quality indicators for construction power supply, including voltage deviation, frequency deviation, three-phase unbalance, harmonics, voltage fluctuations, and flicker, and transmit these indicators to the data analysis module. The power quality acquisition module 113 can be implemented using an online power quality monitoring device (such as the APView500 series or APQM-E series). The online power quality monitoring device automatically collects and calculates power quality indicators such as voltage deviation, frequency deviation, three-phase unbalance, harmonics, voltage fluctuations, and flicker at predetermined time intervals. The online power quality monitoring device can be installed at the location of the transformer's corresponding incoming line cabinet.

[0072] Accordingly, in a preferred embodiment, the data analysis module 130 can also be used to determine the power quality level of tunnel construction power supply based on the power quality indicators for construction power, and to screen out abnormal power quality indicators that are lower than those specified in the national standards. The determined power quality levels for tunnel construction power supply include five levels: excellent, good, fair, average, and poor. Abnormal power quality indicators that are lower than those specified in the national standards refer to power quality indicators of tunnel construction power supply at the average and poor levels. The specific characteristics of the above five power quality levels for tunnel construction power supply are as follows:

[0073] Advantages: Voltage allowable deviation ≤ ±3%, frequency deviation limit ≤ ±0.1Hz, three-phase voltage unbalance ≤ 1.3%, total harmonic distortion rate ≤ 1%, and long-term flicker limit ≤ 0.7.

[0074] Excellent: Voltage allowable deviation ≤ ±5%, frequency deviation limit ≤ ±0.2Hz, three-phase voltage unbalance ≤ 1.3%, total harmonic distortion rate ≤ 2%, and long-term flicker limit ≤ 0.7.

[0075] Good: Permissible voltage deviation ≤ ±7%, frequency deviation limit ≤ ±0.5Hz, permissible three-phase voltage imbalance ≤ 2%, total harmonic distortion rate ≤ 3%, and long-term flicker limit ≤ 1.

[0076] Generally: voltage allowable deviation ≤ ±10%, frequency deviation limit ≤ ±1Hz, three-phase voltage unbalance ≤ 3%, total harmonic distortion rate ≤ 4%, and long-term flicker limit ≤ 1.3.

[0077] Poor: Permissible voltage deviation ≥ ±10%, frequency deviation limit ≥ ±1Hz, permissible three-phase voltage unbalance ≥ 3%, total harmonic distortion rate ≥ 5%, and long-term flicker limit ≥ 1.3.

[0078] According to a preferred embodiment of this application, the intelligent power consumption control unit 141 can also be used to adjust abnormal power quality indicators to normal values. Normal values ​​refer to power quality indicators for tunnel construction power supply classified as excellent, good, or fair.

[0079] In a preferred embodiment of this application, the intelligent linkage module 140 may further include a data recording unit 142, a data query unit 143, and a power quality early warning unit 144. The data recording unit records data collection and analysis results for all time periods for later retrieval. The data query unit queries all data from the data recording unit. The power quality early warning unit provides early warnings based on the power quality level of the tunnel construction power supply, including: issuing an alarm when the power quality level is below "good"; and linking the construction equipment to prevent further use when the power quality level is "poor". The illustrated embodiment shows the intelligent linkage module simultaneously including a data recording unit, a data query unit, and a power quality early warning unit; this is only a preferred implementation and does not represent a limitation. The intelligent linkage module may include only one of the data recording unit, the data query unit, and the power quality early warning unit, or two of them. The data recording unit, the data query unit, and the power quality early warning unit may also be intelligent terminals such as industrial control computers or PCs.

[0080] Based on the above description, the intelligent power control system 100 for railway tunnel construction according to this application embodiment monitors the power consumption of each construction equipment in different time periods. Combining construction equipment workload data and basic construction data, it explores the intrinsic relationship between power consumption and workload under different construction locations, procedures, processes, and surrounding rock grades. It obtains the time balance point between construction power consumption and workload, and based on this time balance point, it obtains the power consumption threshold for each construction equipment in each time period. Under the premise of ensuring construction quality, it intelligently controls the power consumption of construction equipment from the power supply side to achieve energy conservation and emission reduction, which is conducive to promoting intelligent management of power consumption in railway engineering construction and reducing construction costs. In addition, it monitors the power quality of tunnel construction, comprehensively analyzes and evaluates the power quality of tunnel construction power supply based on multiple power quality indicators, and proposes targeted optimization and management measures based on abnormal power quality indicators. This is conducive to ensuring the safe and stable operation of construction equipment and improving equipment operating efficiency and service life.

[0081] The above exemplarily illustrates a smart control system 100 for power supply in railway tunnel construction according to an embodiment of this application. The following, in conjunction with... Figure 3 This application describes another aspect of the intelligent control method for power supply in railway tunnel construction, 200.

[0082] like Figure 3As shown, the intelligent power control method 200 for railway tunnel construction may include the following steps:

[0083] In step S210, the following data is collected: the types of construction equipment, construction locations, procedures, processes, and surrounding rock grade parameters of tunnel construction in each time period, as well as the power consumption data of each construction equipment.

[0084] In step S220, the amount of work completed by each construction equipment in each time period is calculated.

[0085] In step S230, based on the power consumption data of construction equipment and the amount of work in each time period, the power consumption of construction and the actual progress of construction are analyzed within at least one tunnel construction cycle to obtain the time balance point between power consumption and the amount of work. Based on the time balance point, the power consumption threshold of each construction equipment in each time period is obtained.

[0086] In step S240, the power consumption of each construction equipment in each time period of the current tunnel construction cycle is intelligently controlled from the power supply side to ensure that it does not exceed the power consumption threshold of each construction equipment in the corresponding time period.

[0087] In the embodiments of this application, the following data is first collected: the types of construction equipment, construction locations, procedures, processes, and surrounding rock grade parameters for tunnel construction in each time period, as well as the electricity consumption data of each construction equipment. Next, the completed workload data for each construction equipment in each time period is calculated. Then, based on the electricity consumption data and workload data of the construction equipment in each time period, the electricity consumption and actual construction progress are analyzed within at least one tunnel construction cycle to obtain the time balance point between construction electricity consumption and workload. Based on the time balance point, the electricity consumption threshold for each construction equipment in each time period is obtained. Finally, the electricity consumption of each construction equipment in each time period of the current tunnel construction cycle is intelligently controlled from the power supply side to ensure that it does not exceed the corresponding electricity consumption threshold for each construction equipment in that time period.

[0088] As described above, the intelligent power control method 200 for railway tunnel construction according to the embodiments of this application monitors the power consumption of each construction equipment in each time period. By combining the engineering quantity data of the construction equipment and the basic construction data, it explores the intrinsic relationship between the power consumption of the construction equipment and the engineering quantity under different construction locations, procedures, processes and surrounding rock grades, obtains the time balance point of the construction power consumption and the engineering quantity, and obtains the power consumption threshold of each construction equipment in each time period based on the time balance point. Under the premise of ensuring construction quality, it intelligently controls the power consumption of the construction equipment from the power supply side to achieve the purpose of energy conservation and emission reduction, which is conducive to promoting the intelligent management of power consumption in railway engineering construction and reducing construction costs.

[0089] The following will describe in detail the above steps of the intelligent power control method 200 for railway tunnel construction according to an embodiment of this application.

[0090] In the embodiments of this application, step S210 collects the following data: the types of construction equipment, construction locations, procedures, processes, and surrounding rock grade parameters of tunnel construction in each time period, as well as the power consumption data of each construction equipment.

[0091] like Figure 4 As shown, the process can include the following two steps:

[0092] In step S211, the following data are collected for tunnel construction at different time periods: type of construction equipment, construction location, procedure, technology, and surrounding rock grade parameters.

[0093] In step S212, the power consumption data of each construction equipment is collected.

[0094] in, Figure 4 The content shown is for illustrative purposes only and does not represent the order of steps S211 and S212. Step S211 can be performed before, after, or simultaneously with step S212. Step S211 collects data on tunnel construction at various time points, including the type of construction equipment, construction location, procedures, processes, and surrounding rock grade parameters. This data can be collected using various electronic devices such as cameras, sensors, and smart terminals, or by on-site personnel and entered into the system. The types of construction equipment vary depending on the requirements of each tunnel construction project and generally include advanced small-diameter drilling machines, three-hole wall-drilling trolleys, wet spraying machines, waterproofing membrane trolleys, invert arch trolleys, secondary lining trolleys, curing trolleys, welding machines, water pumps, ventilation equipment, and other electrical equipment. Step S212 collects electricity consumption data for each construction device. This can be done using smart meters, which collect electricity consumption data at predetermined time intervals. Smart meters can be installed at the locations of each construction device within the tunnel.

[0095] The main construction procedures for tunnels include: pre-support, excavation, initial support (shotcrete), invert, and secondary lining. Smart meters are installed on the construction equipment corresponding to each of these main construction procedures to collect real-time electricity consumption data. The first calculation method focuses on the electricity consumption of pre-support, excavation, drainage, and ventilation for the same tunnel (as the electricity consumption for later procedures such as invert, secondary lining, and curing is less related to the surrounding rock grade). The average electricity consumption per meter under different surrounding rock grades is calculated as: q1 = (Q1 + Q2 + ...) / L; where: q1 is the electricity consumption per meter for different surrounding rock grades, Q1 is the total electricity consumption for the first section of surrounding rock, Q2 is the electricity consumption for the second section of the same surrounding rock, and L is the total length of the same surrounding rock grade. By comparing the average electricity consumption per meter q1, q2, ... for different surrounding rock grades, the difficulty of tunnel construction under different surrounding rock conditions is assessed. The second calculation method is longitudinal comparison. For the same tunnel using the same construction techniques, this method compares the electricity consumption for the same amount of excavation work over time and with the progress of excavation. For example, it compares the electricity consumption for ventilation when excavating 100m versus 500m, assessing the relationship between the increase in electricity consumption and the excavation length, and drawing a relationship diagram. The third calculation method is lateral comparison. This method calculates the electricity consumption for the same excavation progress at different working faces, such as main tunnels, inclined shafts, and cross tunnels. Generally, 200m is considered a unit of excavation progress, calculating the total electricity consumption for each working face during a 200m excavation. Electricity consumption can assess the management level of the work team and directly reflect the construction environment at different working faces, such as the presence of reverse slope drainage.

[0096] In the embodiments of this application, step S220 calculates the completed work volume data of each construction equipment within each time period. This can be achieved by constructing a digital BIM platform, which automatically calculates the completed work volume of each project based on the project list and the actual construction progress within each time period, and then allocates the completed work volume of each construction equipment corresponding to each project within each time period. The digital BIM platform is an existing technology in this industry. It constructs a refined tunnel BIM model and simulates the construction progress, automatically calculating the completed work volume of each project based on the project list and the actual construction progress within each time period, and then allocating the completed work volume of each construction equipment within each time period. For example, if the lining project work volume is calculated as X2 within a certain time period based on the digital BIM platform, then the corresponding lining trolley work volume is also X2; if the rock drilling project work volume is calculated as Y2 within a certain time period based on the digital BIM platform, then the corresponding rock drilling trolley work volume is also Y2; if the welding project work volume is calculated as Z2 within a certain time period based on the digital BIM platform, then the corresponding welding machine work volume is also Z2.

[0097] In the embodiments of this application, step S230 analyzes the power consumption and actual construction progress of construction equipment based on the power consumption data and project volume data of construction equipment in each time period, at least within one tunnel construction cycle, to obtain the time balance point between power consumption and project volume. Based on the time balance point, the power consumption threshold of each construction equipment in each time period is obtained. Specifically, the method for obtaining the time balance point between power consumption and project volume, and for obtaining the power consumption threshold of each construction equipment in each time period, can be as follows: Analyze the relationship between the increase in power consumption of each construction equipment and the corresponding construction volume in each time period. When the power consumption of the construction equipment at a certain point in a certain time period exceeds a certain power consumption value, and the construction volume in that time period no longer increases, then that point in time is the time balance point between power consumption and project volume, and that power consumption value is the power consumption threshold of the construction equipment in that time period.

[0098] In the embodiments of this application, step S240 involves intelligently controlling the power consumption of each construction device within each time period of the current tunnel construction cycle from the power supply side, ensuring that it does not exceed the power consumption threshold for each construction device within the corresponding time period. That is, if the power consumption of a certain construction device reaches the power consumption threshold for that construction device within a certain time period, the power supply side will cut off the power to that construction device, for example, through an industrial control computer, a smart terminal, etc.

[0099] In addition, such as Figure 5 As shown, the intelligent power control method 200 for railway tunnel construction may further include the following steps:

[0100] In step S310, the following data are collected and calculated: voltage deviation, frequency deviation, three-phase unbalance, harmonics, voltage fluctuation, and power quality indicators for construction power supply.

[0101] In step S320, the power quality level of the tunnel construction power supply is determined based on the power quality indicators of the construction power supply. The power quality level of the tunnel construction power supply includes five levels: excellent, good, fair, average and poor. Abnormal power quality indicators that are lower than those specified in the national standards are also screened out.

[0102] In step S330, the abnormal power quality index is adjusted to the normal value.

[0103] In step S340, an early warning is issued for the power quality of the tunnel construction power supply based on the power quality level, including: issuing an alarm when the power quality level is lower than good; and linking the construction equipment to prevent the construction equipment from continuing to be used when the power quality level is poor.

[0104] In step S310, the data collected and calculated include: voltage deviation, frequency deviation, three-phase unbalance, harmonics, voltage fluctuation, and flicker power quality indicators for construction power supply. These indicators can be collected and calculated automatically at predetermined time intervals by power quality online monitoring devices (such as APView500 series power quality online monitoring devices, APQM-E series power quality online monitoring devices, etc.).

[0105] In step S320, the power quality level of the tunnel construction power supply is determined based on the power quality indicators for construction power. The power quality level for tunnel construction power supply includes five grades: Excellent, Good, Fair, Average, and Poor. Abnormal power quality indicators that are lower than those specified in national standards are also screened out. The specific content of the determined power quality levels for tunnel construction power supply, including the five grades of Excellent, Good, Fair, Average, and Poor, can be as follows:

[0106] Excellent: Voltage allowable deviation ≤ ±3%, frequency deviation limit ≤ ±0.1Hz, three-phase voltage unbalance ≤ 1.3%, total harmonic distortion rate ≤ 1%, and long-term flicker limit ≤ 0.7%. Under these conditions, the power quality is good, and the power quality indicators exceed national standards.

[0107] Excellent: Voltage deviation ≤ ±5%, frequency deviation limit ≤ ±0.2Hz, three-phase voltage imbalance ≤ 1.3%, total harmonic distortion ≤ 2%, and long-term flicker limit ≤ 0.7%. At this level, the power quality is relatively good, with power quality indicators slightly exceeding national standards, meeting high power quality requirements.

[0108] Good: Permissible voltage deviation ≤ ±7%, frequency deviation limit ≤ ±0.5Hz, permissible three-phase voltage imbalance ≤ 2%, total harmonic distortion ≤ 3%, and long-term flicker limit ≤ 1. At this level, the power quality indicators meet national standards.

[0109] Generally: voltage deviation ≤ ±10%, frequency deviation limit ≤ ±1Hz, three-phase voltage imbalance ≤ 3%, total harmonic distortion ≤ 4%, and long-term flicker limit ≤ 1.3. At this level, the power quality is relatively low, and some power quality indicators are below national standards.

[0110] Poor: Voltage allowable deviation ≥ ±10%, frequency deviation limit ≥ ±1Hz, three-phase voltage unbalance ≥ 3%, total harmonic distortion ≥ 5%, and long-term flicker limit ≥ 1.3. At this level, the power quality is substandard, with power quality indicators below national standards, indicating poor power quality.

[0111] Among them, abnormal power quality indicators that are lower than those specified in national standards refer to power quality indicators for tunnel construction that are classified as general or poor.

[0112] In step S330, the abnormal power quality index is adjusted to the normal value, where the normal value refers to the power quality index of tunnel construction power supply with the grades of excellent, good, and good.

[0113] Step S340 involves issuing an early warning for the power quality of the tunnel construction power supply based on the power quality level. This includes: issuing an alarm when the power quality level is below "good"; for example, sending an alarm command to the alarm via an industrial control computer. When the power quality level is "poor", the construction equipment is linked to prevent further use.

[0114] As can be seen from the above description, the intelligent control method 200 for railway tunnel construction power supply according to the embodiment of this application can also monitor the power quality of tunnel construction power supply, comprehensively analyze and evaluate the power quality of tunnel construction power supply based on multiple power quality indicators, and propose targeted optimization and management measures based on abnormal power quality indicators, which is conducive to ensuring the safe and stable operation of construction equipment and improving equipment operating efficiency and service life.

[0115] Reference Figure 6 This application describes an example electronic device for implementing the intelligent power control method for railway tunnel construction according to another aspect of the present application. It includes at least one electronic device 400.

[0116] Electronic device 400 may include one or more processors 410, one or more memories 420, input devices 430, and output devices 440, which are interconnected via a bus system 450 and / or other forms of connection mechanisms (not shown). It should be noted that... Figure 6 The components and structure of the electronic device 400 shown are merely exemplary and not limiting; the electronic device may also have other components and structures as needed.

[0117] The processor 410 may be a central processing unit (CPU) or other form of processing unit with data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device 400 to perform desired functions.

[0118] The memory 420 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 410 may execute the program instructions to implement the client functions (implemented by the processor) in the embodiments of the present invention described herein, and / or other desired functions. Various applications and various data may also be stored in the computer-readable storage medium, such as various data used and / or generated by the applications.

[0119] The input device 430 can be a device used by a user to input commands, and can include one or more of a keyboard, mouse, microphone, and touchscreen. Furthermore, the input device 430 can also be any interface for receiving information.

[0120] The output device 440 can output various information (e.g., images or sounds) to the outside (e.g., a user), and may include one or more of a display, a speaker, etc. Furthermore, the output device 440 can also be any other device with output functionality.

[0121] For example, the example electronic device 400 used to implement the intelligent power control method 200 for railway tunnel construction according to the embodiments of the present invention can be applied to terminal devices (such as mobile phones), tablet computers, laptops, ultra-mobile personal computers (UMPCs), handheld computers, netbooks, personal digital assistants (PDAs), wearable devices (such as smartwatches, smart glasses, or smart helmets), augmented reality (AR) / virtual reality (VR) devices, smart home devices, in-vehicle computers, and other electronic devices. The embodiments of this application do not impose any limitations on this.

[0122] Reference Figure 7 This application describes an example apparatus 500 for implementing the intelligent control method for power supply in railway tunnel construction according to another aspect of the present application.

[0123] refer to Figure 7The device 500 includes a processor 510 and a memory 520. The memory 520 stores an executable program that is run by the processor 510. When the executable program is run by the processor 510, it causes the processor 510 to execute the intelligent power control method 200 for railway tunnel construction according to the embodiments of this application described above. Those skilled in the art can understand the specific operation of the intelligent power control method for railway tunnel construction according to the embodiments of this application in conjunction with the foregoing content. For the sake of brevity, specific details will not be repeated here, and only some main operations of the processor 510 will be described.

[0124] In one embodiment of this application, when the executable program is run by the processor 510, the processor 510 performs the following steps: collecting data including the types of construction equipment, construction locations, procedures, processes, and surrounding rock grade parameters for tunnel construction in each time period, as well as the power consumption data of each construction equipment; calculating the amount of work completed by each construction equipment in each time period; based on the power consumption data and work volume data of construction equipment in each time period, analyzing the power consumption and actual construction progress within at least one tunnel construction cycle, obtaining the time balance point between power consumption and work volume, and obtaining the power consumption threshold of each construction equipment in each time period based on the time balance point; and intelligently regulating the power consumption of each construction equipment in each time period of the current tunnel construction cycle from the power supply side to ensure that it does not exceed the power consumption threshold of each construction equipment in the corresponding time period.

[0125] In one embodiment of this application, when the executable program is run by the processor 510, the processor 510 further performs the following steps: collecting and calculating power quality indicators for construction power supply, including voltage deviation, frequency deviation, three-phase imbalance, harmonics, voltage fluctuation, and flicker; classifying the power quality level of tunnel construction power supply based on the power quality indicators, the power quality level of tunnel construction power supply includes five levels: excellent, good, fair, average, and poor, and screening out abnormal power quality indicators that are lower than those specified in national standards; adjusting the abnormal power quality indicators to normal values; and providing early warning for the power quality of tunnel construction power supply based on the power quality level of tunnel construction power supply, including: issuing an alarm when the power quality level is lower than the fair level; and linking the construction equipment to prevent the construction equipment from continuing to be used when the power quality level is poor.

[0126] Furthermore, according to embodiments of this application, a storage medium is also provided, on which a computer program is stored. When the computer program is executed by a processor, it performs corresponding steps of the intelligent power control method 200 for railway tunnel construction according to embodiments of this application. The storage medium may, for example, include a memory card of a smartphone, a storage component of a tablet computer, a hard disk of a personal computer, a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a portable compact disc read-only memory (CD-ROM), a USB memory, or any combination of the above storage media. The computer-readable storage medium may be any combination of one or more computer-readable storage media.

[0127] Based on the above description, the intelligent power control method and system for railway tunnel construction according to the embodiments of this application monitors the power consumption of each construction equipment in different time periods. Combining construction equipment workload data and basic construction data, it explores the intrinsic relationship between power consumption and workload under different construction locations, procedures, processes, and surrounding rock grades. It obtains the time balance point between construction power consumption and workload, and based on the time balance point, obtains the power consumption threshold for each construction equipment in each time period. Under the premise of ensuring construction quality, it intelligently controls the power consumption of construction equipment from the power supply side to achieve energy conservation and emission reduction, which is conducive to promoting intelligent management of power consumption in railway engineering construction and reducing construction costs. In addition, it monitors the power quality of tunnel construction, comprehensively analyzes and evaluates the power quality of tunnel construction power supply based on multiple power quality indicators, and proposes targeted optimization and management measures based on abnormal power quality indicators. This is conducive to ensuring the safe and stable operation of construction equipment and improving equipment operating efficiency and service life.

[0128] Although exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above exemplary embodiments are merely illustrative and are not intended to limit the scope of this application. Various changes and modifications can be made therein by those skilled in the art without departing from the scope and spirit of this application. All such changes and modifications are intended to be included within the scope of this application as claimed in the appended claims.

[0129] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0130] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed.

[0131] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of this application may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0132] Similarly, it should be understood that, in order to streamline this application and aid in understanding one or more of the various inventive aspects, features of this application may sometimes be grouped together in a single embodiment, figure, or description thereof in the description of exemplary embodiments of this application. However, this approach should not be construed as reflecting an intention that the claimed application requires more features than are expressly recited in each claim. Rather, as reflected in the corresponding claims, its inventive point lies in solving the corresponding technical problem with features fewer than all features of a single disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of this application.

[0133] Those skilled in the art will understand that, apart from the mutual exclusion of features, all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or apparatus so disclosed can be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature that serves the same, equivalent, or similar purpose.

[0134] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0135] The various component embodiments of this application can be implemented in hardware, or as software modules running on one or more processors, or a combination thereof. Those skilled in the art will understand that microprocessors or digital signal processors (DSPs) can be used in practice to implement some or all of the functions of some modules according to the embodiments of this application. This application can also be implemented as an apparatus program (e.g., a computer program and computer program product) for performing part or all of the methods described herein. Such an implementation of this application can be stored on a computer-readable medium, or can be in the form of one or more signals. Such signals can be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

[0136] It should be noted that the above embodiments are illustrative of this application and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. This application can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0137] The above description is merely a specific embodiment or illustration of the embodiments of this application. The scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A method for assessing the relationship between electricity consumption and construction production in railway tunnel construction, characterized in that, This evaluation method uses an intelligent power control system for railway tunnel construction. The intelligent power control system includes a construction data acquisition module, a quantity calculation module, a data analysis module, and an intelligent linkage module. The evaluation method includes: The construction data acquisition module collects the following data: the types of construction equipment, construction locations, procedures, processes, and surrounding rock grade parameters for tunnel construction in each time period, as well as the power consumption data of each construction equipment, and transmits the above data to the data analysis module. The quantity calculation module calculates the quantity of work completed by each construction equipment in each time period and transmits it to the data analysis module. The data analysis module analyzes the electricity consumption and actual construction progress of construction equipment based on the electricity consumption data and project volume data of construction equipment in each time period. It analyzes the relationship between the increase in electricity consumption and the corresponding increase in project volume for each construction equipment in each time period. When the electricity consumption of construction equipment at a certain point in time exceeds a certain value, and the project volume no longer increases in that time period, this point in time is the time equilibrium point between electricity consumption and project volume, and this electricity consumption value is the electricity consumption threshold for that construction equipment in that time period. Based on the time equilibrium point, the electricity consumption threshold for each construction equipment in each time period is obtained. A tunnel construction cycle includes multiple time periods in chronological order. The intelligent linkage module intelligently regulates the power consumption of each construction equipment in each time period of the current tunnel construction cycle from the power supply side, so that it does not exceed the power consumption threshold of each construction equipment in the corresponding time period.

2. The evaluation method according to claim 1, characterized in that, The construction data acquisition module includes: The basic construction information collection module is used to collect information on tunnel construction at different time periods, including: the type of construction equipment, construction location, procedures, technology, and surrounding rock grade parameters, and transmit them to the data analysis module. The power consumption data acquisition module for construction equipment is used to collect power consumption data of each piece of construction equipment and transmit it to the data analysis module.

3. The evaluation method according to claim 2, characterized in that, The construction data acquisition module also includes: The power quality acquisition module is used to collect and calculate power quality indicators for construction power supply, including voltage deviation, frequency deviation, three-phase unbalance, harmonics, voltage fluctuation, and flicker, and transmit them to the data analysis module.

4. The evaluation method according to claim 3, characterized in that, The power consumption data acquisition module for the construction equipment uses smart meters. These smart meters collect power consumption data from each piece of construction equipment at predetermined time intervals and transmit it to the data analysis module; and / or The power quality acquisition module adopts an online power quality monitoring device. The online power quality monitoring device automatically collects and calculates power quality indicators for construction power supply, including voltage deviation, frequency deviation, three-phase unbalance, harmonics, voltage fluctuation, and flicker, at predetermined time intervals, and transmits them to the data analysis module.

5. The evaluation method according to claim 1, characterized in that, The quantity calculation module automatically calculates the completed quantity of each project based on the project list and the actual construction progress in each time period by building a digital BIM platform. After allocation, it obtains the completed quantity of each construction equipment corresponding to each project in each time period and transmits it to the data analysis module at predetermined time intervals.

6. The evaluation method according to claim 3, characterized in that, The data analysis module is also used to classify the power quality level of tunnel construction power supply based on the power quality index of construction power supply, and to screen out abnormal power quality indexes that are lower than those specified in the national standards. The power quality grades for tunnel construction power supply are classified into five levels: excellent, good, fair, average, and poor. The specific details are as follows: Advantages: Voltage allowable deviation ≤ ±3%, frequency deviation limit ≤ ±0.1Hz, three-phase voltage unbalance ≤ 1.3%, total harmonic distortion rate ≤ 1%, and long-term flicker limit ≤ 0.

7. Excellent: Voltage tolerance ≤ ±5%, frequency deviation limit ≤ ±0.2Hz, three-phase voltage imbalance ≤ 1.3%, total harmonic distortion ≤ 2%, and long-term flicker limit ≤ 0.

7. Good: Permissible voltage deviation ≤ ±7%, frequency deviation limit ≤ ±0.5Hz, permissible three-phase voltage imbalance ≤ 2%, total harmonic distortion rate ≤ 3%, and long-term flicker limit ≤ 1; Generally: permissible voltage deviation ≤ ±10%, frequency deviation limit ≤ ±1Hz, permissible three-phase voltage imbalance ≤ 3%, total harmonic distortion rate ≤ 4%, and long-term flicker limit ≤ 1.3; Poor: Permissible voltage deviation ≥ ±10%, frequency deviation limit ≥ ±1Hz, permissible three-phase voltage imbalance ≥ 3%, total harmonic distortion rate ≥ 5%, and long-term flicker limit ≥ 1.3; Among them, abnormal power quality indicators that are lower than those specified in national standards refer to power quality indicators for tunnel construction that are classified as general or poor.

7. The evaluation method according to claim 6, characterized in that, The intelligent linkage module includes a power consumption intelligent control unit: The intelligent power consumption control unit is used to intelligently control the power consumption of each construction equipment during each time period of the current tunnel construction cycle from the power supply side, so that it does not exceed the power consumption threshold of each construction equipment during the corresponding time period; and / or The intelligent power consumption control unit is used to adjust abnormal power quality indicators to normal values.

8. The evaluation method according to claim 7, characterized in that, The intelligent linkage module also includes: The data recording unit is used to record the data collection and analysis results for all time periods for later retrieval; and / or The data query unit is used to query all data in the data record unit; and / or The power quality early warning unit is used to provide early warnings on the power quality of the power supply for tunnel construction based on the power quality level. This includes: issuing an alarm when the power quality level is lower than good; and triggering the construction equipment to stop its continued use when the power quality level is poor.

9. The evaluation method according to any one of claims 1 to 8, characterized in that, The power consumption data of construction equipment in each time period is obtained through one of the following methods: Method 1: For the same construction project, calculate the electricity consumption for advanced support, excavation, drainage, and ventilation, and calculate the average electricity consumption per meter under different surrounding rock grades: in: Electricity consumption per meter for different surrounding rock grades. This represents the total electricity consumption of the first section of surrounding rock. For the electricity consumption of the second section with the same surrounding rock, The total length of the same surrounding rock grade; By analyzing the average electricity consumption per meter for different surrounding rock grades The comparison was used to assess the difficulty of tunnel construction in different surrounding rock conditions. Method 2: For the same construction process in the same construction project, including advanced support, excavation, drainage, and ventilation, compare the electricity consumption for the same working length as time and excavation length increase.

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