Ground construction method and construction device for outdoor transformer substation
By using laser level and earthwork machinery to work in the ground construction of outdoor substations, the problem of limited accuracy of traditional measurement tools is solved, high-precision earthwork excavation and layered compaction are achieved, and construction efficiency and quality are improved.
Patent Information
- Application Number
- CN202510197387.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-05-06
AI Technical Summary
The traditional measurement tools used in the ground construction of outdoor substations in the prior art have limited accuracy, which makes it difficult to ensure the accuracy of earth excavation, which increases the construction time and the need for rework and trim.
The laser level is used to work in concert with earthwork machinery. Through the high-precision level reference provided by the laser level, the operation height and angle of earthwork machinery are adjusted in real time, combined with the principles of layered compaction and fine compaction, the construction accuracy and efficiency are improved.
It improves the accuracy and construction quality of earth excavation, reduces measurement and adjustment time, speeds up construction progress, and reduces the need for rework and trim.
Smart Images
Figure CN119932979A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of ground construction of outdoor substations, and in particular to a ground construction method and a construction device of an outdoor substation. Background Art
[0002] With the rapid development of economy and the continuous progress of society, the demand for electricity in all walks of life is increasing. In order to meet this growing demand, it is necessary to continuously build new outdoor substations to improve the power supply capacity and quality. Therefore, the ground construction method of outdoor substations has a wider application space.
[0003] In the prior art, relatively traditional measuring tools such as levels and theodolites are still used in the ground construction of outdoor substations. The precision of these precision measuring tools is limited and it is impossible to achieve real-time, high-precision measurement. The only way to ensure the accuracy is to rely on multiple manual measurements. Since the excavation accuracy is difficult to ensure, multiple rework and repairs are required, which undoubtedly increases the operation time of earth excavation. At the same time, frequent manual measurements will also take up a lot of time, causing the entire construction progress to lag behind. Summary of the invention
[0004] In view of the shortcomings of the prior art, the present invention provides a ground construction method and a construction device for an outdoor substation, which solves the problem that relatively traditional measuring tools such as levels and theodolites are still used in the ground construction of outdoor substations in the prior art, and the accuracy of the measuring tools is limited, which increases the operation time of earth excavation.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A ground construction method for an outdoor substation, comprising the following steps: S1. Earthwork excavation, layered and segmented excavation, depth and slope control, slope trimming, equipped with laser level and coordinated operation with earthmoving machinery; S2. Level and clean the base. Level and clean the base, remove debris first, and then use a grader to perform fine leveling; S3. Verify elevation: arrange points at intervals of 5-10 meters, measure elevation with a level, compare with the design elevation to calculate the deviation, mill or manually chisel away the higher places, and fill and compact the lower places; S4, mixing lime and soil, the lime is dissolved and sieved in advance, the soil is screened and crushed, and mechanical mixing is used to control the moisture content; S5. Ratio inspection: Carry out ratio inspection, focusing on testing the moisture content of materials; S6. Compact in layers. After each layer of fill is spread, use a grader to level it first, and then perform compaction operations.
[0006] In the step S1, the excavation depth of each layer is controlled at 3-5 meters, the segment length is 10-30 meters, the allowable deviation of depth control is ±50mm, the allowable deviation of slope flatness is ±20mm, and manual and mechanical finishing are used.
[0007] In step S1, the specific steps of equipping the laser level with the earth-moving machinery for collaborative operation are as follows: a. Place the laser level in a stable position with a wide field of view, calibrate and debug the laser level, set the required horizontal elevation or slope parameters, and make it emit a laser plane or slope line; b. Install a laser receiver on the earth-moving machinery to ensure that it is compatible with the laser level and can accurately receive signals; c. Perform preliminary earth excavation or leveling operations based on the laser signal received by the laser receiver, with the laser plane emitted by the laser level as the reference. When the laser receiver detects that the mechanical working part is higher than the laser plane, the operator controls the machine to lower the working height, otherwise it will be raised.
[0008] In the step S2, the surface flatness deviation of the base layer is controlled within ±15 mm, and there is no more than one debris with a diameter greater than 50 mm per square meter.
[0009] In the step S3, if the deviation exceeds +20mm, a milling machine is used for milling. The milling thickness is determined according to the deviation value. The milling thickness does not exceed 50mm each time. For small areas that are relatively high and not suitable for mechanical operation, manual chiseling is used. The surface flatness deviation after chiseling is ±5mm.
[0010] In step S4, the lime used is calcium quicklime of grade III or above, with a calcium content of not less than 70%, a mix ratio of 3:7 lime to soil, a mix ratio deviation of ±2%, a soil mixer is used for mechanical mixing, a mixing speed is controlled at 3-5 kilometers per hour, and a moisture content deviation is controlled at ±2%.
[0011] In the step S5, the moisture content of the materials used in the lime-soil cushion construction is controlled within the range of ±2%.
[0012] In the step S6, the compaction machine is a vibratory roller with a deadweight of 12-18 tons, whose vibration frequency is generally 30-50 Hz and amplitude is 0.5-1.5 mm. For small areas or corners, a frog-type rammer is used, whose impact energy is generally 150-300 N·m.
[0013] In the step S6, the compaction principles are first static compaction and then vibration, first light compaction and then heavy compaction, first slow and then fast, and from the edge to the middle. Generally, static compaction is performed 1-2 times, and vibration compaction is performed 3-5 times. The compaction speed is controlled at 2-4 km / h.
[0014] The present invention also provides a ground construction device for an outdoor substation, comprising: Data acquisition module: by installing sensors on bulldozers, graders, and rollers, the operating status data is collected. The status data includes position, speed, working time, and vibration frequency; Data transmission module: Use 4G / 5G wireless communication technology to transmit data remotely and transmit data to mobile terminals in real time; Data processing module: Use digital signal processing, pattern recognition, and data mining technology to conduct in-depth analysis of pre-processed data, and combine it with construction equipment status data to analyze the work efficiency and energy consumption of construction equipment; Control decision module: adjust the equipment's operating parameters according to the equipment status and construction requirements, integrate the data of multiple devices, optimize the entire construction process, and coordinate the working sequence and progress of bulldozers and rollers.
[0015] Power module: provides the main power supply for the device, using AC power or generator as the main power source; Storage module: A hard disk or flash memory storage device is set up locally in the device to store the collected data and analysis results in real time.
[0016] The present invention provides a ground construction method and a construction device for an outdoor substation, which have the following beneficial effects: 1. During the earth excavation process, the present invention is equipped with a laser level to work in coordination with earth-moving machinery. The high-precision horizontal reference provided by the laser level allows earth-moving machinery operators to accurately adjust the operating height and angle in real time, thereby improving excavation accuracy, improving construction quality, reducing measurement and adjustment time, speeding up construction progress, and improving overall construction efficiency.
[0017] 2. In the present invention, during the layered compaction steps, the principles of first static pressure and then vibration, first light pressure and then heavy pressure, first slow and then fast, and from the edge to the middle are followed. Combined with the specified static pressure, vibration pressure times and compaction speed, the material can be gradually compacted and the force is evenly distributed, ensuring the compaction degree and flatness, and improving the quality of the project.
[0018] 3. The present invention sets a control decision module, adjusts the working parameters of the equipment according to the equipment status and construction requirements, integrates the data of multiple equipment, optimizes the entire construction process, coordinates the working sequence and progress of the bulldozer and roller equipment, makes the connection between them closer, reduces the waiting time and idling time between equipment, realizes continuous operation, and improves the overall construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a flow chart of a ground construction method of an outdoor substation of the present invention; Figure 2It is a schematic diagram of a ground construction device for an outdoor substation according to the present invention. DETAILED DESCRIPTION
[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings 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.
[0021] Please see attached Figure 1 The embodiment of the present invention provides a ground construction method for an outdoor substation, comprising the following steps: S1. Earthwork excavation, layered and segmented excavation, depth and slope control, slope trimming, equipped with laser level and coordinated operation with earthmoving machinery; S2. Level and clean the base. Level and clean the base, remove debris first, and then use a grader to perform fine leveling; S3. Verify elevation: arrange points at intervals of 5-10 meters, measure elevation with a level, compare with the design elevation to calculate the deviation, mill or manually chisel away the higher places, and fill and compact the lower places; S4, mixing lime and soil, the lime is dissolved and sieved in advance, the soil is screened and crushed, and mechanical mixing is used to control the moisture content; S5. Ratio inspection: Carry out ratio inspection, focusing on testing the moisture content of materials; S6. Compact in layers. After each layer of fill is spread, use a grader to level it first, and then perform compaction operations.
[0022] Specifically, earth excavation makes room for the pouring and construction of the equipment foundation, ensuring that the foundation can meet the designed depth and size requirements. During the earth excavation process, a laser level is equipped to work with earth-moving machinery. The high-precision horizontal benchmark provided by the laser level can be used to allow earth-moving machinery operators to accurately adjust the operating height and angle in real time, improve excavation accuracy, reduce the frequency of manual measurement, and avoid construction errors to improve construction efficiency. Leveling and clearing the base can provide a good construction surface, which is conducive to material laying and prevents the influence of debris. Reviewing the elevation can ensure the accuracy of the ground elevation, timely discover the unevenness of the ground, and adjust the parts that are higher or lower than the design elevation, so as to ensure the overall flatness of the ground and create good conditions for subsequent construction and equipment operation. Mixing lime soil can enhance the strength of the soil and reduce foundation settlement. Proportion inspection can ensure that the friction and adhesion between soil particles are moderate, which can make it easier for the lime soil to be closely arranged during the compaction process, achieve the best compaction, and enhance the bearing capacity of the cushion layer. Layered compaction can make the particles in the soil squeeze and fill each other, arrange them more closely, effectively reduce the porosity of the soil and increase the density of the soil.
[0023] In step S1, the excavation depth of each layer is controlled at 3-5 meters, the segment length is 10-30 meters, the allowable deviation of depth control is ±50mm, and the allowable deviation of slope flatness is ±20mm. Manual and mechanical finishing are used.
[0024] Specifically, excavation preparation: according to the design drawings, delineate the excavation area, set the elevation control line, and establish the measurement reference point.
[0025] Layered excavation: Excavation is carried out in layers according to the specified excavation depth (3-5 meters). The excavation depth is strictly controlled each time, and the construction personnel monitor the depth in real time.
[0026] Segmented excavation: During the excavation process, the length of each segment is controlled within 10-30 meters to ensure that segmented operations are beneficial to construction progress and quality.
[0027] Earthwork finishing: After the earthwork is excavated, it is first roughly trimmed by machinery, and then manually trimmed to ensure that the flatness of the slope is controlled within ±20mm.
[0028] Quality inspection: After each section of excavation is completed, use measuring tools to check the depth and flatness of the slope to ensure that it meets the design requirements and make corrections in a timely manner.
[0029] Beneficial effects: The excavation depth of each layer and the length of each segment are controlled as per regulations, deviations are allowed and manual and mechanical trimming are adopted to ensure the excavation accuracy, slope stability and flatness, and guarantee construction quality and safety.
[0030] In step S1, the specific steps for equipping the laser level with earthmoving machinery to work together are: a. Place the laser level in a stable position with a wide field of view, calibrate and debug the laser level, set the required horizontal elevation or slope parameters, and make it emit a laser plane or slope line; b. Install a laser receiver on the earth-moving machinery to ensure that it is compatible with the laser level and can accurately receive signals; c. Perform preliminary earth excavation or leveling operations based on the laser signal received by the laser receiver, with the laser plane emitted by the laser level as the reference. When the laser receiver detects that the mechanical working part is higher than the laser plane, the operator controls the machine to lower the working height, otherwise it will be raised.
[0031] Specifically, equipping a laser level to work in conjunction with earth-moving machinery can utilize the high-precision horizontal reference provided by the laser level to allow earth-moving machinery operators to accurately adjust the operating height and angle in real time, thereby improving excavation accuracy.
[0032] In step S2, the surface flatness deviation of the base layer is controlled within ±15mm, and there is no more than one debris with a diameter greater than 50mm per square meter; Specifically, first remove the debris from the base layer: use a combination of mechanical and manual methods to ensure that the number of debris with a diameter greater than 50mm does not exceed 1 per square meter.
[0033] Rough leveling of base: Use a bulldozer for preliminary leveling.
[0034] Fine leveling: Use a grader to fine-tune the surface of the base layer to ensure that the flatness is controlled within ±15mm.
[0035] Inspection and correction: Use laser levels, total stations and other precise equipment to inspect each section, and make timely adjustments and corrections if any deviations are found.
[0036] Ensure that no debris remains: Thoroughly inspect and clean the base layer to ensure that debris is completely removed and does not affect subsequent construction.
[0037] Beneficial effects: Controlling the surface flatness deviation of the base layer within ±15mm can ensure the stability and uniformity of subsequent construction, make the superstructure evenly stressed, and prevent the debris from affecting the bonding effect between the base and the upper materials. This ensures the strength and durability of the overall structure, thereby improving the quality of the project and reducing subsequent maintenance costs.
[0038] In step S3, if the deviation exceeds +20mm, a milling machine is used for milling. The milling thickness is determined according to the deviation value. The milling thickness does not exceed 50mm each time. For small areas that are relatively high and not suitable for mechanical operation, manual chiseling is used. The surface flatness deviation after chiseling is ±5mm.
[0039] Specifically, point layout and measurement: points are arranged at intervals of 5-10 meters, actual elevation is measured using a level, and compared with the design elevation.
[0040] Dealing with Bias: Over +20mm: Use a milling machine for milling, and the milling thickness shall not exceed 50mm.
[0041] Small areas that are not suitable for mechanical operation are removed manually and the surface flatness is controlled within ±5mm.
[0042] Too low: fill in and compact to ensure the flatness and compaction meet the design requirements.
[0043] Inspection and acceptance: Remeasure elevation and surface flatness to ensure that all treatments meet design standards.
[0044] Beneficial effects: Milling with a milling machine is a key measure. The milling thickness is determined accurately according to the deviation, and each milling should not exceed 50mm. This can not only correct the deviation, but also will not excessively damage the base structure and maintain its stability. Manual chiseling plays an important role in small areas that are relatively high and difficult to operate machines.
[0045] In step S4, the lime is calcium quicklime of grade III or above, with a calcium content of not less than 70%, a mix ratio of 3:7 lime to soil, a mix ratio deviation of ±2%, a soil mixer is used for mechanical mixing, a mixing speed is controlled at 3-5 kilometers per hour, and a moisture content deviation is controlled at ±2%.
[0046] Specifically, lime digestion and screening: put calcium quicklime of grade III or above and with a calcium content of not less than 70% in a digestion tank with water at a ratio of about 1:3, and continue stirring for 2 to 3 days. After digestion is completed, sieve it with a sieve with a pore size of 2-5mm.
[0047] Soil screening and crushing: Use a vibrating screen with a 10-20mm aperture screen to remove soil impurities and large lumps of soil, and then use a crusher to crush the large lumps of soil into appropriate particle sizes.
[0048] Mechanical mixing: Calculate the amount of lime and soil according to the 3:7 lime-soil mix ratio, transport them to the mixing site, and debug the soil mixer; start the equipment, feed lime and soil evenly, accurately control the amount of watering according to the moisture content deviation requirement of ±2%, and mix back and forth 2-3 times at a speed of 3-5 kilometers per hour; use a moisture detector to measure the moisture content regularly during mixing, adjust the amount of watering if it exceeds the standard, check the mix ratio through sampling analysis, and adjust the feed amount if the deviation exceeds ±2%.
[0049] Beneficial effects: Selecting calcium quicklime of grade III or above with a calcium content of not less than 70% can provide sufficient active ingredients for the lime soil and ensure the strength of the lime soil. Strictly control the deviation of the 3:7 lime soil ratio within ±2% to ensure the stability of the lime soil performance and avoid affecting the quality due to inaccurate ratio. The mechanical mixing speed is controlled at 3-5 kilometers per hour to ensure that the lime and soil are fully and evenly mixed. Controlling the water content deviation within ±2% can keep the lime soil in the best compaction state and enhance the compaction effect. These measures work together to improve the strength, stability and durability of the lime soil cushion layer and ensure the quality of the project.
[0050] In step S5, the moisture content of the materials used in the lime-soil cushion construction is controlled within the range of ±2%.
[0051] Specifically, the preparation work is as follows: arrange professional technicians, prepare calibrated electronic balances, ovens, rapid moisture testers, standard sieves and testing equipment, and prepare sampling tools and sealed sample containers.
[0052] Sampling: Take at least one sample per 100-200 square meters or at least once per shift, and take samples of no less than 1000 grams from different locations after the ash and soil are evenly mixed, such as the mixer outlet, paving site, etc.
[0053] Moisture content detection: The drying method is to weigh the wet weight of the sample, dry it to a constant weight, and then calculate the moisture content according to the formula; the rapid moisture meter method is to calibrate the instrument first, weigh the sample, and then measure and read the data according to the procedure.
[0054] Proportion check: Sieving analysis is to weigh the sample and put it into the standard sieve group for screening, weigh the weight of each sieve residue, calculate the sieve residue percentage to determine the soil particle grading; chemical analysis is to analyze the chemical composition content of the sample after pretreatment by titration, colorimetry, etc., and compare it with the designed mix ratio.
[0055] Result processing and adjustment: If the test results are within the specified range, they are considered qualified; if the moisture content exceeds the standard, turn the material over, add dry materials or sprinkle water to remix; if the ratio deviation is large, adjust the materials and remix.
[0056] Beneficial effects: Within this range, the friction and adhesion between soil particles are moderate, which can make it easier for the gray soil to be closely arranged during the compaction process, achieve the best compaction degree, and enhance the bearing capacity of the cushion layer.
[0057] In step S6, the compaction machinery is a vibratory roller with a deadweight of 12-18 tons. Its vibration frequency is generally 30-50Hz and its amplitude is 0.5-1.5mm. For small areas or corners, a frog-type rammer is used, and its impact energy is generally 150-300N·m.
[0058] Specifically, leveling: After each layer of fill is spread, use a grader to adjust the scraper angle and height according to the ground conditions to control the flatness.
[0059] Large area compaction: Use a 12-18 ton vibratory roller, adjust the frequency and amplitude, first static compaction 1-2 times, then vibratory compaction 3-5 times, speed 2-4km / h, and the wheel tracks overlap 1 / 3-1 / 2 wheel width.
[0060] Compacting small areas and corners: Use a frog-type rammer with an impact energy of 150-300 N·m. After checking for safety, compact in sequence to ensure the overlap of the tamping.
[0061] Beneficial effects: A vibratory roller with a deadweight of 12-18 tons, a vibration frequency of 30-50Hz, and an amplitude of 0.5-1.5mm can efficiently compact large areas by virtue of the synergistic effect of its weight, vibration frequency, and amplitude, so that the material particles are closely arranged, significantly improving the compaction degree and foundation bearing capacity, and ensuring compaction uniformity. A frog-type rammer with an impact energy of 150-300N・m can accurately compact small areas and corners, make up for the blind spots of large-scale mechanical operations, ensure the overall project quality, and prevent local settlement.
[0062] In step S6, the compaction principles are first static compaction and then vibration, first light compaction and then heavy compaction, first slow and then fast, and from the edge to the middle. Generally, static compaction is performed 1-2 times, and vibration compaction is performed 3-5 times. The compaction speed is controlled at 2-4km / h.
[0063] Specifically, static compaction operation: drive the roller to the edge of the fill, keeping a distance of 15-20 cm from the edge; turn off the vibration, and static compaction from the edge to the middle 1-2 times at a speed of 2-3 km / h. After each static compaction, check the flatness and compaction conditions, and level and compact in time.
[0064] Vibration compaction operation: adjust the vibration frequency of the roller to 30-50Hz and the amplitude to 0.5-1.5mm; vibrate and compact from the edge to the middle at a speed of 3-4km / h, with the wheel tracks overlapping by 1 / 3-1 / 2 of the wheel width, and compact 2-4 times; use a frog-type rammer for small areas or corners, tamping row by row from the edge with the rammer vertical and the overlapping area not less than 1 / 3 of the rammer area.
[0065] Beneficial effects: Following the compaction principles of static pressure first, then vibration, light pressure first, then heavy pressure, slow pressure first, then fast pressure, and from the edge to the middle, combined with the specified static pressure, vibration pressure times and compaction speed, the material can be gradually compacted and the force is evenly distributed, ensuring the compaction degree and flatness, and improving the quality of the project.
[0066] Please see attached Figure 2 The embodiment of the present invention further provides a ground construction device for an outdoor substation, comprising: Data acquisition module: By installing sensors on bulldozers, graders, and rollers, operating status data is collected. The status data includes position, speed, working time, and vibration frequency.
[0067] Specifically, location data: With the help of GPS or Beidou positioning technology, the three-dimensional coordinates of the device are determined by receiving satellite signals and using the principle of triangulation.
[0068] Speed data: Use a wheel speed sensor to analyze the electrical signal based on the principle of electromagnetic induction or Hall effect to obtain the speed; or use an acceleration sensor combined with an integration algorithm to integrate the acceleration to obtain the speed.
[0069] Working time data: Through the timing chip in the equipment control system, the timing starts and ends when the equipment starts and stops respectively; or based on the operating status of key components of the monitoring equipment, the signal threshold is used to determine whether the equipment is working to calculate the time.
[0070] Vibration frequency data: Use a high-sensitivity accelerometer to measure vibration acceleration and analyze the frequency after preprocessing; or use a piezoelectric vibration sensor to convert vibration into an electrical signal using the piezoelectric effect to obtain the vibration frequency.
[0071] Data transmission module: Use 4G / 5G wireless communication technology to transmit data remotely and transmit data to mobile terminals in real time.
[0072] Specifically, hardware: construction equipment is equipped with 4G / 5G communication modules, which are responsible for signal conversion and transmission; equipped with high-performance antennas, the selection and installation are optimized according to the equipment structure and environment to enhance the signal.
[0073] Software: The communication module runs a protocol stack that complies with the 3GPP standard to handle communication interactions; encapsulates collected data and parses it at the receiving end; uses AES, RSA and other algorithms for encryption, and ensures security through SIM card or digital certificate authentication.
[0074] Network: The device communication module connects to the base station to send data, the base station transmits it to the core network, and after routing and switching by the core network, it is sent to the operator network to which the mobile terminal belongs, and the terminal receives and displays it.
[0075] Data processing module: Use digital signal processing, pattern recognition, and data mining technology to conduct in-depth analysis of pre-processed data, and combine it with construction equipment status data to analyze the work efficiency and energy consumption of construction equipment.
[0076] Specifically, data preprocessing Cleaning: Processing noise, errors, and missing values, such as correcting position outliers based on range and supplementing missing values of working hours based on logic.
[0077] Normalization: Use the Min-Max method to unify the range of data of different dimensions for easy analysis.
[0078] Smoothing: For fluctuating data such as vibration frequency, use moving average filtering to reduce random fluctuations.
[0079] Digital Signal Processing Fourier transform: Convert vibration frequency data from the time domain to the frequency domain, analyze the frequency components to determine equipment abnormalities.
[0080] Wavelet transform: Use multi-resolution analysis to process complex non-stationary signals of equipment and extract local features.
[0081] Pattern Recognition Cluster analysis: Use the K-means algorithm to divide the working mode according to the equipment operation data to understand the working efficiency.
[0082] Classification algorithm: Use SVM and decision tree to build a model based on equipment status data to determine the real-time operating status.
[0083] Data Mining Association rule mining: Use the Apriori algorithm to find the association between equipment operation data, the relationship between speed and fuel consumption, and reduce energy consumption.
[0084] Trend analysis: Use time series models such as ARIMA to predict equipment efficiency and energy consumption trends based on historical data.
[0085] Comprehensive analysis and results presentation Work efficiency analysis: calculate efficiency indicators based on working hours and workload, and compare to find inefficient links.
[0086] Energy consumption analysis: Combine operation and energy consumption data to establish a model to evaluate rationality and put forward suggestions for energy reduction.
[0087] Result presentation: The analysis results are intuitively displayed in charts and reports to help managers understand the construction status.
[0088] Control decision module: adjust the equipment's operating parameters according to the equipment status and construction requirements, integrate the data of multiple devices, optimize the entire construction process, and coordinate the working sequence and progress of bulldozers and rollers.
[0089] Specifically, data acquisition and evaluation Real-time data collection: Receive real-time equipment operation data from the acquisition module and historical data from the storage module.
[0090] Clear construction requirements: Clearly define various construction requirements based on the construction plan.
[0091] Equipment status assessment: Use data processing results to evaluate equipment efficiency, energy consumption and potential failures, and determine the rationality of its working area and stage.
[0092] Decision Making Parameter adjustment decision: Determine and optimize equipment operating parameters based on equipment status and construction requirements, and predict the impact of adjustments.
[0093] Construction process optimization decision-making: Integrate data from multiple devices and use optimization algorithms to determine the best work sequence and schedule.
[0094] Power module: Provides the main power supply for the device, using AC power or generator as the main power source.
[0095] Specifically, the mains power supply Access conversion: Access the mains electricity through the high-voltage line, and after being protected by the distribution box, the voltage is stepped down to the applicable voltage by the transformer.
[0096] Voltage stabilization and filtering: Use voltage stabilizers to stabilize voltage and filters to filter out interference to ensure stable and pure power supply.
[0097] Metering and monitoring: Install electric meters for measurement, use the power monitoring system to monitor the city power parameters, and issue abnormal alarms.
[0098] Generator power supply Selection and configuration: Select a diesel or gasoline generator according to power requirements, equipped with fuel tanks, cooling and other auxiliary equipment.
[0099] Start-up control: supports manual or automatic start-up, monitors operating parameters through the controller, alarms for abnormal shutdowns and adjusts power.
[0100] Switching and grid connection: A switching device is installed to switch to the generator when the mains power fails; large projects can use the grid connection device to realize parallel operation of multiple generators.
[0101] Storage module: A hard disk or flash memory storage device is set up locally in the device to store the collected data and analysis results in real time.
[0102] Specific hardware selection Hard disk: Choose a mechanical hard disk (HDD) for large capacity requirements; use a solid-state drive (SSD) for read and write speeds, such as an NVMe protocol M.2 interface SSD.
[0103] Flash memory devices: USB flash drives or flash memory cards are used for temporary storage, backup, and data transfer; flash memory arrays are used in scenarios that require high performance and reliability.
[0104] Storage Architecture Local storage: For small devices or small data volumes, stand-alone storage is used, which is directly connected to the host and managed by the host file system. For large data volumes and the need for collaborative access, distributed storage is used, with data dispersed across multiple devices and managed using a distributed file system.
[0105] Storage management: Select appropriate file systems such as FAT32, NTFS, EXT4, etc. to format and manage storage devices; establish a regular backup mechanism that combines full and incremental backups, and store backup data on different devices or locations to facilitate recovery when data is lost or damaged.
[0106] Data Security Encrypted storage: Use AES, RSA and other algorithms to encrypt and store data to prevent data theft and tampering.
[0107] Access control: Set user permissions and access control lists (ACLs) to limit data access so that only authorized users or devices can operate, ensuring data security and confidentiality.
[0108] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A ground construction method for an outdoor substation, comprising the following steps: S1. Earthwork excavation, layered and segmented excavation, depth and slope control, slope trimming, equipped with laser level and coordinated operation with earthmoving machinery; S2. Level and clean the base. Level and clean the base, remove debris first, and then use a grader to perform fine leveling; S3. Verify elevation: arrange points at intervals of 5-10 meters, measure elevation with a level, compare with the design elevation to calculate the deviation, mill or manually chisel away the higher places, and fill and compact the lower places; S4, mixing lime and soil, the lime is dissolved and sieved in advance, the soil is screened and crushed, and mechanical mixing is used to control the moisture content; S5. Ratio inspection: Carry out ratio inspection, focusing on testing the moisture content of materials; S6. Compact in layers. After each layer of fill is spread, use a grader to level it first, and then perform compaction operations.
2. A ground construction method for an outdoor substation according to claim 1, characterized in that: In the step S1, the excavation depth of each layer is controlled at 3-5 meters, the segment length is 10-30 meters, the allowable deviation of depth control is ±50mm, the allowable deviation of slope flatness is ±20mm, and manual and mechanical finishing are used.
3. The ground construction method of an outdoor substation according to claim 1, characterized in that: In step S1, the specific steps of equipping the laser level with the earth-moving machinery for collaborative operation are as follows: a. Place the laser level in a stable position with a wide field of view, calibrate and debug the laser level, set the required horizontal elevation or slope parameters, and make it emit a laser plane or slope line; b. Install a laser receiver on the earth-moving machinery to ensure that it is compatible with the laser level and can accurately receive signals; c. Perform preliminary earth excavation or leveling operations based on the laser signal received by the laser receiver, with the laser plane emitted by the laser level as the reference. When the laser receiver detects that the mechanical working part is higher than the laser plane, the operator controls the machine to lower the working height, otherwise it will be raised.
4. The ground construction method of an outdoor substation according to claim 1, characterized in that: In the step S2, the surface flatness deviation of the base layer is controlled within ±15 mm, and there is no more than one debris with a diameter greater than 50 mm per square meter.
5. The ground construction method of an outdoor substation according to claim 1, characterized in that: In the step S3, if the deviation exceeds +20mm, a milling machine is used for milling. The milling thickness is determined according to the deviation value. The milling thickness does not exceed 50mm each time. For small areas that are relatively high and not suitable for mechanical operation, manual chiseling is used. The surface flatness deviation after chiseling is ±5mm.
6. The ground construction method of an outdoor substation according to claim 1, characterized in that: In step S4, the lime used is calcium quicklime of grade III or above, with a calcium content of not less than 70%, a mix ratio of 3:7 lime to soil, a mix ratio deviation of ±2%, a soil mixer is used for mechanical mixing, a mixing speed is controlled at 3-5 kilometers per hour, and a moisture content deviation is controlled at ±2%.
7. The ground construction method of an outdoor substation according to claim 1, characterized in that: In the step S5, the moisture content of the materials used in the lime-soil cushion construction is controlled within the range of ±2%.
8. The ground construction method of an outdoor substation according to claim 1, characterized in that: In the step S6, the compaction machine is a vibratory roller with a deadweight of 12-18 tons, whose vibration frequency is generally 30-50 Hz and amplitude is 0.5-1.5 mm. For small areas or corners, a frog-type rammer is used, whose impact energy is generally 150-300 N·m.
9. The ground construction method of an outdoor substation according to claim 1, characterized in that: In the step S6, the compaction principles are first static compaction and then vibration, first light compaction and then heavy compaction, first slow and then fast, and from the edge to the middle. Generally, static compaction is performed 1-2 times, and vibration compaction is performed 3-5 times. The compaction speed is controlled at 2-4 km / h.
10. A ground construction device for an outdoor substation according to claim 1, used to implement a ground construction method for an outdoor substation according to any one of claims 1 to 9, characterized in that: include; Data acquisition module: by installing sensors on bulldozers, graders, and rollers, the operating status data is collected. The status data includes position, speed, working time, and vibration frequency; Data transmission module: Use 4G / 5G wireless communication technology to transmit data remotely and transmit data to mobile terminals in real time; Data processing module: Use digital signal processing, pattern recognition, and data mining technology to conduct in-depth analysis of pre-processed data, and combine it with construction equipment status data to analyze the work efficiency and energy consumption of construction equipment; Control decision module: adjust the equipment's working parameters according to the equipment status and construction requirements, integrate the data of multiple equipment, optimize the entire construction process, and coordinate the working sequence and progress of bulldozers and rollers; Power module: provides the main power supply for the device, using AC power or generator as the main power source; Storage module: A hard disk or flash memory storage device is set up locally in the device to store the collected data and analysis results in real time.