High-speed rail full-process digital screen cleaning construction method

Abstract

The application discloses a high-speed railway full-process digitalized screen cleaning construction method, and particularly relates to the technical field of high-speed railway digitalized construction, which comprises the following steps: S1, determining line design data and rechecking; S2, measuring the line and placing piles, cooperating with the screen cleaning work to operate according to the quality control standard, measuring the track surface elevation of the line after screen cleaning by means of an auxiliary measurement system combined with a distance measurement module, thereby controlling the elevation of the screen cleaning section in real time; S3, daily construction operation process; S4, performing preliminary tamping operation; S5, performing rough tamping operation; S6, performing fine tamping operation; S7, performing fine tamping operation again, after the completion of the second track gauge fine adjustment, performing tamping operation again by means of the fine tamping scheme prepared by using the inertial navigation operation fine measurement data, and performing stable tamping operation, and whether to perform reinforcing tamping is determined according to the TQI and fine measurement data and the like; S8, performing quality rechecking and analysis, and performing appearance arrangement and acceptance, and then performing project completion.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-speed railway digital construction, and relates to a high-speed railway whole-process digital ballast cleaning construction method. BACKGROUND

[0002] With the rapid development of railways in China, in the operation process of ballast bed of railway lines, phenomena such as dirt, hardening and boiling of the ballast bed may occur, and the elasticity of the ballast bed cannot be maintained to cause the ballast bed to be unable to be in a normal and reliable working state, so the ballast bed needs to be cleaned to ensure that it is in a normal and reliable state, and the ballast cleaning construction operation has developed from manual operation to the current large machine ballast cleaning construction operation.

[0003] According to the search, in the patent with the patent number CN203065910U, an angle sensor is installed on the lower side surface of the cross beam of the front bogie and the rear bogie to realize real-time measurement of the longitudinal height difference of the rail surface, however, in the actual ballast cleaning operation, the frame is relatively soft, and the frame may be bent and deformed during the operation, which greatly affects the detection accuracy, and the actual amount of falling off the track cannot be accurately reflected.

[0004] In addition, in the current ballast cleaning construction, the given data of the amount of track lifting and the amount of track shifting in the construction section is recorded by the naked eye of the operation personnel and given according to experience, and the track lifting and track shifting personnel are not fixed, so the construction quality is difficult to guarantee, and the rework amount is high.

[0005] However, the whole-process digital ballast cleaning construction is very necessary in the actual application process.

[0006] 1. The high-speed railway whole-process digital ballast cleaning construction method uses data in the whole process to guide the construction.

[0007] 2. The influence of human factors on the quality of ballast cleaning operation is reduced to the greatest extent, so as to reduce the cost, improve the operation efficiency and quality. SUMMARY

[0008] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a high-speed railway whole-process digital ballast cleaning construction method to solve the problems in the above background.

[0009] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a high-speed railway whole-process digital ballast cleaning construction method, comprising the following steps:

[0010] S1, determining the line design data and checking, and adopting a fixed grouping mode to perform the operation process of construction;

[0011] S2, measure the line and place the pile, cooperate with the screening work to operate according to the quality control standard, measure the track surface elevation after screening by using the auxiliary measurement system combined with the ranging module, and thus control the elevation of the screening section in real time;

[0012] S3, daily construction process: (1) preparation before construction, before formal construction, the first day of construction is developed according to the needs of the first day of construction, on the day of the rehearsal, the machine is transferred from the storage point to the registration station according to the formal construction organization, and the engineering vehicle is simulated to open to the operation site after the lockout, after arriving at the construction section, the plan is decomposed and positioned, after decomposition, each vehicle is tested, and the track bed is not disturbed, after the test is completed, the plan is connected, returned to the station and stored, the time required for each link is focused on, aiming to guide the time control of each link of the subsequent formal construction; (2) preparation before locking: ① construction scheme development, daily construction quality review meeting is held by workshop team, section control staff, special team, team leader, workshop plan and technology, the construction quality and existing problems of the previous day are summarized, and the key points of the day are analyzed, and the targeted construction plan is developed, the key points mainly include the following points:

[0013] I. Key time point control: the receiving time of the screening machine, the machine connection and return to the station time are strictly controlled, and the operation time of other processes is ensured to ensure the line opening on time;

[0014] II. According to the slope of the operation site, determine the sequence and position of the decomposition and connection, and prevent the situation that the screening machine cannot be normally connected due to insufficient power after construction on the large slope;

[0015] III. Reasonably determine the retreat excavation mileage according to the precise measurement data;

[0016] IV. According to the site investigation and the amount of the next day's operation, reasonably develop the unloading mileage to ensure that the coarse and fine tamping is full, and attention should be paid to avoid the overfull of the track ballast in the bridge section;

[0017] S4, preliminary tamping operation, after unloading and stabilizing operation, the first ranging module data after screening operation is used to guide the preliminary tamping operation, and the second ranging module before the second tamping operation is used to guide the second tamping operation;

[0018] S5, coarse tamping operation, coarse tamping scheme is made by using the inertial navigation operation precise measurement data after screening, to eliminate the low-lying and plane deviation of the screening section, and make the whole section smooth, and the first pass of track gauge fine adjustment is completed before the subsequent fine tamping;

[0019] S6, performing fine tamping work, after the coarse tamping and the first track gauge fine adjustment are completed, a fine tamping scheme made by using the inertial navigation operation fine measurement data is used to perform tamping work, and tamping stabilization work is performed, and the second track gauge fine adjustment is completed before the subsequent fine tamping;

[0020] S7, performing fine tamping work again, after the second track gauge fine adjustment is completed, a fine tamping scheme made by using the inertial navigation operation fine measurement data is used to perform tamping work again, and tamping stabilization work is performed, and whether to perform supplementary tamping is determined according to the TQI and the fine measurement data and the like;

[0021] S8, performing quality re-inspection and analysis, and performing appearance arrangement and acceptance, and then performing project completion;

[0022] In a preferred embodiment, the S1 specifically comprises: determining the line design data and performing re-inspection, and using a fixed grouping mode to group the operation car and the ballast unloading car, in the fixed grouping mode used for the screen cleaning, one 08 tamping car is replaced by one 09 tamping car, one ballast distribution car and one set of tamping and stabilization combined unit are added, the operation mode of "screen cleaning tamping + coarse tamping + fine tamping + supplementary tamping" is realized, after the operation of the screen cleaning car equipped with "08 tamping car + ballast distribution car + stabilization car + 09 tamping car + stabilization car", "08 tamping car + ballast distribution car + 09 tamping car + ballast distribution car + tamping and stabilization combined unit + tamping and stabilization combined unit", three tamping and two stabilization are realized, before formal construction, the first day of construction is practiced according to the construction demand of the first day, after the practice, counting is performed, and numbering and pasting of marks are performed, and then construction is blocked, the engineering train is shunted, a protection system is established, preparation before operation is performed, and the engineering train is operated and positioned after the blocking.

[0023] In a preferred embodiment, the S2 specifically comprises: performing line measurement and pile placement, according to the screen cleaning car ridge entry control standard and the screen cleaning car ridge exit control standard, cooperating with the screen cleaning way control standard, according to the screen cleaning line auxiliary measurement system of the new screen cleaning tooling, real-time monitoring of various data changes in the operation process is performed, and the corresponding data is fine-tuned, and the line static geometric size should meet: track gauge deviation -6~+12mm, horizontal difference less than 25mm, triangular pit less than 30mm, rail joint less than 30mm, curve visual roundness without reverse super-elevation, cooperating with the screen cleaning car normal operation control standard, the retreat excavation distance and the ridge mouth "sleeve digging" distance control standard, the screen cleaning way high point prevention control standard, the screen cleaning stage last day screen cleaning elevation surface and existing elevation surface connection slope rate control standard, after the screen cleaning is completed, the speed level is gradually increased to the normal speed in the four-day speed-up tamping stage, and the connection of the screen cleaning elevation surface and the existing elevation surface is controlled according to the slope rate of not more than 0.3‰.

[0024] Specifically, the new tool of the screen car screen line auxiliary measurement system can intuitively reflect the screen line level, direction, and height data, and there is a corresponding fine-tuning device; during the screen cleaning operation, by observing the screen line auxiliary measurement system, the screen line level, direction, and height control situation can be understood in real time, if the horizontal deviation is too large, the No. 5 position operator can adjust the backfill angle and the amount of stone ballast to reduce the horizontal difference;

[0025] I. If the horizontal deviation is too large, the No. 5 position operator can adjust the backfill angle and the amount of stone ballast to reduce the horizontal difference;

[0026] II. If the direction deviation is too large, the No. 3 position operator should control the turnout device to the left or right to achieve the ideal value;

[0027] III. If the actual elevation does not reach the specified elevation, which is 50-60mm lower than the design elevation, the No. 3 position operator should immediately control the turnout device to reduce the excavation depth to achieve the ideal elevation value, otherwise the excavation depth should be appropriately reduced.

[0028] In a preferred embodiment, the workshop plan in step S3 is prepared according to the approved construction daily plan:

[0029] ① Hold a large machine screen cleaning and completion meeting: organize and hold a meeting, Guangzhou large machine section personnel, workshop management personnel, each work team, outsourcing construction team, Haikou comprehensive maintenance section professional leaders participate;

[0030] ② Participate in the preparatory meeting and summary meeting: led by the railway department, construction main unit, skylight shared unit, and each cooperating unit participate;

[0031] ③ Hold a second subcontracting meeting: organize and hold a second subcontracting meeting according to the regulations;

[0032] ④ Personnel in place and tool, material counting: count and statistics all operation personnel, tools, and materials entering and exiting the work door, all tools need to be numbered and pasted with reflective markers, the numbering rule: except for handheld intercom, all tools are brushed with red reflective paint or pasted with reflective markers, numbered and marked with the style of "workshop abbreviation (2 digits) - tool code (2 digits) - digital serial number 3 digits", such as QS-GD-001, the first symbol QS represents the screen cleaning workshop name, the second symbol represents the tool code, and the third symbol is the digital number, all starting from 001 and numbered continuously;

[0033] ⑤Work door management, personnel, tool inventory is completed, all operating personnel in accordance with the order of entering the work door group queuing outside the work door waiting, after the blockade order issued by Haikou integrated maintenance segment open work door, each group of operating personnel in order to enter the queue order;

[0034] ⑥Entry sequence: Guangzhou large machine section protection personnel, mound excavation group, Haikou integrated maintenance section of each professional obstacle group, artificial replacement group, track precision adjustment group, Guangzhou large machine section slope screening group, Haikou integrated maintenance section of power supply measurement group, inertial navigation car measurement group, Riyue bright track inspection car detection group, gauge car detection group, Guangzhou large machine section precision ramming group, appearance finishing group;

[0035] ⑦Construction lock registration application, each unit liaison officer according to the specified time to post, by the construction unit responsible for the registration of the bus-46, each unit liaison officer to sign the recognition, to the dispatching office application construction lock, issued construction dispatching command;

[0036] ⑧Engineering train operation, the last EMU through Wenchang station, large machine group from Wenchang integrated maintenance work area into Wenchang station 3, connected into a column waiting for lock. Wenchang integrated maintenance work area artificial switch is arranged by Guangzhou large machine section responsible person and cadre control.

[0037] In a preferred embodiment, the S4 specifically comprises: the three ramming and two stabilizing system should be implemented on the day of screening, the 08 ramming car preliminary operation is carried out, and the second ramming operation is carried out after the unloading car and stabilizing car operation is completed. In the unloading car operation organization standard, the unloading is controlled, investigated and organized, and the pneumatic car is formed into a group, and the screening car meets the technical standard of large slope alignment operation, the material car meets the loading standard, the stabilizing car meets the operation standard, and the matching car meets the anti-scratch standard. After the screening operation on the day of screening, the first two-dimensional laser range finder data is used to guide the 08 ramming car operation, and the second two-dimensional laser range finder before the 09 ramming car is used to guide the 09 ramming car operation.

[0038] In a preferred embodiment, the S5 specifically comprises: coarse ramming operation is carried out, coarse ramming is carried out by 09 ramming car or ramming and stabilizing joint, which aims to lift low-lying and eliminate high points, control the horizontal and vertical section at the same elevation, and optimize the horizontal and vertical section of the construction section to provide a good section for fine ramming. The coarse ramming scheme is made by using the inertial navigation car operation precision data after screening to eliminate the low-lying and horizontal deviation of the screening section, so that the section is smooth as a whole, and the first track gauge precision adjustment is completed before the subsequent fine ramming.

[0039] In a preferred embodiment, the S6 specifically comprises: performing fine tamping work, when on a slope, tamping on flat and longitudinal section gentle places at a slope rate of no more than 0.5 ‰, when the slope section is at the starting point or end point of the cleaning section, extending the starting point of the slope to 20m-50m away from the non-cleaning section to start the slope, the fine tamping data aims to flatten the gentle place, raise the low-lying place, and eliminate high points, and the flat and longitudinal section is controlled at the same elevation and plane, the front vehicle starts and deflects the track by no more than 30mm, the rear vehicle tamps the track by 10mm throughout the whole process, the tamping and stabilizing association tamps according to the fine tamping data, when the front vehicle of the tamping and stabilizing association starts the track by less than 40mm, no double tamping work is performed, when the fine tamping data starts the track by 0mm, only stabilizing mode is adopted, when the over-limit boundary appears, reverse driving is performed or manual intervention is performed, after the coarse tamping and the first track gauge fine adjustment are completed, the fine tamping scheme prepared by the inertial navigation trolley work fine measurement data is used for tamping work, the first fine tamping is two tamping and two stabilizing, and the tamping and stabilizing work is simultaneously performed, and the second track gauge fine adjustment is completed before subsequent fine tamping.

[0040] In a preferred embodiment, the S7 specifically comprises: again performing fine tamping work, after the second track gauge fine adjustment is completed, again using the fine tamping scheme prepared by the inertial navigation work fine measurement data for tamping work, the second fine tamping is two tamping and one stabilizing (the front vehicle of the tamping and stabilizing association tamps and stabilizes, and the rear vehicle performs tamping work), and the tamping and stabilizing work is simultaneously performed, and whether to perform reinforcing tamping is determined according to the TQI and the fine measurement data and the like, and when on a slope, the slope must be tamped on flat and longitudinal section gentle places at a slope rate of no more than 0.3 ‰, when the slope section is at the starting point or end point of the cleaning section, the starting point of the slope should be extended to 30m-60m away from the non-cleaning section to start the slope, and the fine tamping data is mainly dominated by reducing the TQI, the front vehicle starts the track by no more than 15mm, deflects the track by no more than 10mm, and the rear vehicle tamps the track by 8mm throughout the whole process, the tamping length must be more than 2km, when the over-limit boundary appears, reverse driving is performed or manual intervention is performed, and no selective double tamping is performed.

[0041] In a preferred embodiment, quality re-inspection and analysis are performed, and appearance arrangement and acceptance are performed, including track inspection trolley pushing, train connection and return to the station and entering the maintenance point, limit trolley pushing, work personnel exiting the work door, and cleaning track inspection, after the cleaning track inspection is completed, the line is opened, post-opening work is performed, and the project is completed.

[0042] Technical effects and advantages of the present application:

[0043] 1. The application adopts a fixed marshalling mode by high-speed rail screening, which greatly reduces the time of marshalling and screening, effectively avoids the problem of short length of the storage base track, and improves the marshalling mode of high-speed rail full-process digital screening. One 08 tamper vehicle is replaced by a 09 tamper vehicle, one ballast distribution vehicle and one set of tamper-stabilization combination are added, and the operation mode of "screening-tampering + rough tampering + fine tampering + reinforcing tampering" is realized. After the operation of "08 tamper vehicle + ballast distribution vehicle + stabilizing vehicle + 09 tamper vehicle + stabilizing vehicle", the "three tampering and two stabilizing" mode is realized, the quality of line construction is further improved, and the ballast unloading vehicle is marshalled. Due to the full-length track of high-speed rail screening section, the amount of stone ballast used is small, and the screening track is mainly safe ballast. It is appropriate to hang 5-7 pneumatic ballast unloading vehicles on the same day, which reduces the length of marshalling and the weight of locomotive traction.

[0044] 2. The screening line auxiliary measurement system of the screening vehicle new tooling can intuitively reflect the level, direction and elevation data of the screening line, and there is a corresponding fine adjustment device. During the operation, the level, direction and elevation control of the screening line are real-time understood by observing the screening line auxiliary measurement system. If the level deviation is too large, the fifth position operator can adjust the backfill angle and the amount of stone ballast to reduce the level difference. If the direction deviation is too large, the third position operator should control the track shifting device to shift left or right to achieve the ideal value. If the actual elevation does not reach the specified elevation (the specified elevation is 50-60mm lower than the design elevation), the third position operator should immediately control the track lifting device to reduce the excavation depth to achieve the ideal elevation value, otherwise the excavation depth should be appropriately reduced.

[0045] 3. In order to achieve the quality target of full-process digital screening construction (TQI reaches 2.0 and below), the screening vehicle auxiliary measurement system is installed on the screening vehicle to control the track standard from the source, and the centering device is installed on the stabilizing vehicle to realize the curve collection function of the stabilizing vehicle, which greatly improves the operation efficiency of the stabilizing vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a specific process schematic diagram of the high-speed rail full-process digital screening construction method of the application;

[0047] Figure 2 It is a specific process schematic diagram of the high-speed rail full-process digital screening construction method of the application;

[0048] Figure 3 It is a schematic diagram of the section at the operation end of the application;

[0049] Figure 4 It is a schematic diagram of the order flow of the grouping operators of the application;

[0050] Figure 5 Detail schematic diagram of construction rehearsal of the present application;

[0051] Figure 6 Detail schematic diagram of unloading ballast organization standard of the present application;

[0052] Figure 7 Schematic diagram after construction of high-speed rail whole-process digital screen cleaning construction method of the present application ends;

[0053] Figure 8 Schematic diagram of operation flow after opening of the present application. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0055] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be the usual meanings understood by the skilled in the art to which the present application belongs.

[0056] According to Figures 1-7 As shown in the figure, the high-speed rail whole-process digital screen cleaning construction method includes the following steps:

[0057] S1, determining line design data and checking, at the same time, adopting fixed marshalling mode, and performing operation flow of construction;

[0058] S2, measuring line and placing pile, cooperating with screen cleaning work to perform operation according to quality control standard, and measuring track surface elevation after screen cleaning by using auxiliary measurement system combined with distance measurement module, thereby performing real-time control of screen cleaning section elevation;

[0059] S3. Daily construction operation process: (1) Preparation before construction: Before formal construction, a construction drill for the first day is formulated based on the construction needs of the first day. On the day of the drill, the unit is shunted from the storage point and transferred to the registration station to wait for orders according to the formal construction group. After the blockade, the engineering vehicle simulates the formal construction and drives to the work site. After arriving at the construction site, the vehicle is decomposed and aligned according to the construction plan. After decomposition, each vehicle is put into operation for testing. The track bed must not be disturbed. After the test is completed, the vehicle is coupled, returned to the station and stored according to the plan. The key is to control the time required for each link, which aims to guide the time control of each link in the subsequent formal construction. (2) Preparation before blockade: ① Formulation of construction plan: Every day, the workshop team, section monitoring cadres, special team, foreman, workshop planner and technician hold a construction quality review meeting to summarize the construction quality and existing problems of the previous day, and analyze the key points of the construction on the day and formulate a targeted construction plan. The key points mainly include the following:

[0060] I. Control of key time points: Strictly control the closing time of the screen cleaning machine and the return time of the unit to the station, and use this to calculate the operation time of other processes to ensure that the line opens on time;

[0061] II. Determine the disassembly alignment and connection sequence and position according to the slope of the work site, and strictly prevent the screen cleaning machine from being unable to connect properly due to insufficient power on a steep uphill slope after construction;

[0062] III. Determine the appropriate excavation retreat mileage based on the precise survey data;

[0063] IV. Based on the on-site investigation and the amount of ballast to be lifted on the second day, reasonably determine the ballast unloading mileage to ensure that the ballast is full before rough compaction and fine compaction. It is necessary to pay attention to avoid overfilling the ballast in bridge sections.

[0064] S4. Perform preliminary tamping work. After the ballast unloading and stabilization work is completed, perform secondary tamping work. On the day of sieving, use the data from the first ranging module after the sieving work to guide the preliminary tamping work, and then use the data from the second ranging module before the secondary tamping work to guide the secondary tamping work.

[0065] S5. Perform rough tamping operation. After screening, use the inertial navigation operation to measure the data to make a rough tamping plan, eliminate the low-lying areas and plane deviations in the screening section, make the cross section smooth overall, and then complete the first round of track gauge fine adjustment before subsequent fine tamping.

[0066] S6. Perform fine tamping operation. After the coarse tamping and the first round of gauge fine adjustment are completed, use the fine tamping plan made by the inertial navigation operation to carry out the tamping operation and stabilization operation at the same time. Then, complete the second round of gauge fine adjustment before the subsequent fine tamping.

[0067] S7. Perform fine tamping again. After the second round of gauge fine adjustment, use the fine tamping plan made by the inertial navigation operation to carry out tamping operation and tamping stabilization operation. At the same time, determine whether to carry out reinforcement tamping based on the TQI and fine measurement data.

[0068] S8. Conduct quality re-inspection and analysis, perform appearance finishing and acceptance, and then complete the project.

[0069] Specifically, S1 includes: determining and reviewing the line design data, and using a fixed formation mode to assemble the work cars and ballast unloading cars. In the fixed formation mode used for screening, one 08 tamping car is replaced with a 09 tamping car, and a ballast distribution workshop and a set of tamping and stabilizing units are added to achieve the operation mode of "screening and tamping + coarse tamping + fine tamping + reinforcing tamping". After the screening car is equipped with "08 tamping car + ballast distribution car + stabilizing car + 09 tamping car + stabilizing car" and "08 tamping car + ballast distribution car + 09 tamping car + ballast distribution car + tamping and stabilizing unit + tamping and stabilizing unit", three tamping and two stabilizing are achieved. Before the formal construction, the first day's construction drill is formulated according to the first day's construction needs. After the drill, the inventory is counted and counted, and the cars are numbered and labeled. Then the construction is closed off. The engineering train shunting operation is carried out, a protection system is established, and preparations are made before the operation. After the closure, the engineering train is started and aligned.

[0070] In this embodiment of the application, a first-day construction drill is formulated based on the first-day construction requirements, and in accordance with... Figure 5 As shown, in addition to handheld walkie-talkies, all tools and equipment are painted with red reflective paint or affixed with reflective markings, and are numbered and labeled in the format of "workshop abbreviation (2 digits) - tool code (2 digits) - serial number (3 digits)". The queuing order for each group of workers is as follows: Figure 4 As shown, the pre-operation preparations include the excavation team rushing to the work site as soon as they enter the work gate to excavate the ridge, in order to avoid the engineering vehicles waiting for the ridge excavation. The Haiwei section's electrical, power supply, and communication departments will remove the box connection lines, transponders, and other crane equipment that affect the large machine's screening operation within the work area, and will also carry out safety protection for the crane equipment and cables under their respective jurisdiction.

[0071] Specifically, S2 includes: measuring and setting out stakes for the track; based on the control standards for the entry and exit of the screening car ridge, and in conjunction with the control standards for the screening track, using the new tooling auxiliary measurement system for the screening car track, monitoring the changes in various data during the operation in real time, and making fine adjustments to the corresponding data. Simultaneously, the static geometric dimensions of the track should meet the following requirements: gauge deviation -6 to +12 mm, horizontal difference less than 25 mm, triangular crater less than 30 mm, rail gap less than 30 mm, and curves visually smooth with no superelevation.

[0072] The screen car normal operation control standard, the retreat excavation distance and the control standard of the dragon mouth slope, the control standard of the screen way to prevent high point, the control standard of the hill mouth "sleeve" excavation distance, and the control standard of the screen stage last day screen elevation surface and the existing elevation surface slope rate are used for operation. After the screen is finished, the speed level gradually increases to the normal speed in the four-day speed-up tamping stage, and the connection of the screen elevation surface and the existing elevation surface is controlled at a slope rate of not more than 0.3‰;

[0073] In the embodiment of the application, the hill mouth cutting-in control standard of the screen car: after the screen car finishes the chain connection at the hill mouth, the 3rd position adjusts the lifting amount of the clamp (the lifting amount is 0) and commands the 1st position to excavate at a uniform speed, and the 5th position adjusts the left and right backfilling, which is gradually controlled at an included angle of 5° (the backfilling ballast falls outside the sleeper head);

[0074] The screen car normal operation control standard: the excavation speed is controlled at a uniform speed to avoid the stop of the excavation device, which causes the high point of the backfilling ballast accumulation. When obstacles, stuck stop, and emergency stop are encountered, the 3rd and 4th positions open the left and right backfilling devices to the maximum position in the first time, and the precise control of the lifting and lifting device is controlled. During the operation, the maximum lifting amount of the clamp is controlled at 50 mm according to the site track laying amount, the planar lifting amount deviation is controlled at ±10 mm according to the design data, the control of the backfilling device is controlled at an included angle of 5° (the backfilling ballast falls outside the sleeper head), the left and right backfilling device "draws a line" to fix the position, the two-dimensional laser range finder measures 10 m at the tail of the screen car, and the measured elevation is fed back to the 3rd and 4th positions of the screen car in the first time. The backfilling device is strictly prohibited to be adjusted randomly without joint control, and the positions of the working devices are not allowed to be changed randomly after the normal operation;

[0075] The screen car hill mouth cutting-out control standard: when 10 meters away from the hill mouth, the 3rd position adjusts the lifting device (the lifting amount is 0), and commands the 1st position to reduce the excavation speed, and the 5th position recovers the left and right backfilling devices to the position, so that the ballast falls into the two sides of the rail. After reaching the hill mouth, the working devices are closed, recovered to the position and locked, and then slowly drive away from the hill mouth. The screen elevation control standard after the screen is finished. The three-tamping two-stabilizing construction mode is used to organize the screen area on the same day, and the actual elevation of the three-tamping two-stabilizing control is lower than the design elevation by 40 mm;

[0076] The control standard of the screening track is as follows: in order to ensure that the quality of the track meets the standard after the screening operation, the new tooling screening track auxiliary measurement system of the screening vehicle is used to monitor the changes of various data in the operation process in real time, and the corresponding data is fine-tuned. The new tooling screening track auxiliary measurement system of the screening vehicle can directly reflect the level, direction and elevation data of the screening track, and there is a working device that can fine-tune the data. During the operation, the level, direction and elevation control of the screening track are understood in real time by observing the screening track auxiliary measurement system. If the level deviation is too large, the fifth position operator adjusts the backfill angle and the amount of fallen ballast to reduce the level deviation. If the direction deviation is too large, the third position operator controls the track shifting device to shift left or right to achieve the numerical value. If the actual elevation does not reach the specified elevation (the specified elevation is 50-60mm lower than the design elevation), the third position operator should immediately control the track lifting device to reduce the excavation depth to achieve the ideal elevation value. Conversely, the excavation depth is appropriately reduced. Since the portal track lifting machine is not used in high-speed rail screening construction, when the static geometric size detection does not meet the requirements for the access of the tamping vehicle, the rack type press is used for manual intervention to flatten the track to ensure construction safety.

[0077] Retracement distance and control standard of the slope of the gap: the slope of the gap is controlled to reduce the retracement distance. The 08 tamping vehicle is strictly prohibited from tamping into the old track, and the 09 tamping vehicle is controlled at a slope of 2‰. The 09 tamping vehicle should be operated once to avoid frequent reversing. The excavation starting point standard is that the elevation of the three-stable two-stable screening track is greater than or equal to -30mm. When the existing elevation is 20mm, the retracement distance is 25m. When the existing elevation is 30mm, the retracement distance is 30m. When the existing elevation is 40mm, the retracement distance is 35m. The gap measurement is performed after the daily screening operation. The Anboge trolley must cover 100m before and after the gap. The next day's retracement starting point is determined based on the Anboge measurement data, but not more than 40m.

[0078] Control standard for preventing high points in the screening track: during the operation of the screening vehicle, the two sides of the backfill should be opened in time to prevent excessive ballast from entering the parking area. The daily retracement distance is determined based on the measurement data. The overall longitudinal section elevation after three tamping and two stabilization is controlled at -40mm. During the fine tamping operation, double tamping is strictly prohibited when the track lifting amount of the tamping and stabilization vehicle is less than 40mm. The tamping and stabilization vehicle should be controlled at a slope of 0.8‰ from the old track to ensure the slope control. The daily screening terminal gap is controlled at a slope of 2‰. The 08 tamping vehicle is strictly prohibited from operating into the old track. The 09 tamping vehicle should be operated at a slope of 2‰ to the terminal gap.

[0079] Control standard for the "sleeve" excavation distance of the gap: the "sleeve" excavation position of the gap is determined based on the previous construction conditions. The cross-sectional structure of the gap after the operation is as follows: Figure 3As shown, the south head 09 tamper car is at the slope with a slope rate of 2‰ to reduce the length of the slope "sleeve", and the slope "sleeve" digging position control standard. To ensure that the joint does not appear high point affecting the subsequent fine tampering operation, the 12900 cleaning screen car receives the slope of the slope, and the 12901 cleaning screen car is used before the slope of the slope. The two-dimensional laser range finder data determines the digging length, and the cleaning screen joint needs to ensure that the three tampering and two stable track surface elevation is lower than the design section by 30-40mm;

[0080] The last day of the cleaning screen stage is the last day of the cleaning screen stage. The slope rate control standard of the existing elevation surface is as follows: after the cleaning screen is finished, the speed is increased for four consecutive days, and the speed level is gradually increased to the normal speed. The connection between the cleaning screen elevation surface and the existing elevation surface is particularly important. In order to ensure the subsequent two rounds of fine tampering, the slope rate of the cleaning screen elevation surface and the existing elevation surface should be controlled to be not more than 0.3‰. Excessive slope rate will result in excessive slope of the first round of fine tampering and the second round of fine tampering, thereby affecting the final TQI condition.

[0081] Specifically, S4 includes: the cleaning screen day should implement the three tampering and two stable system, carry out the 08 tamper car preliminary operation, cooperate with the unloading car and the stabilizer operation, and then carry out the second time tampering operation. The unloading organization standard of the unloading car operation controls, investigates, organizes the unloading, and at the same time, groups the pneumatic car, and makes the cleaning screen car meet the large slope alignment operation technical standard, the material car meets the loading standard, the stabilizer meets the operation standard, and the matching car meets the anti-scratch standard. The first two-dimensional laser range finder data after the cleaning screen operation on the cleaning screen day is used to guide the 08 tamper car operation, and the second two-dimensional laser range finder before the 09 tamper car is used to guide the 09 tamper car operation;

[0082] In the embodiment of the application, the cleaning screen car strictly carries out the cleaning operation according to the quality control standard, measures the existing track surface elevation before the construction section is cleaned, and measures the track surface elevation after the cleaning by using the cleaning screen car auxiliary measurement system combined with the two-dimensional laser range finder. Thus, the elevation condition of the cleaning section is controlled in real time,

[0083] At the same time, the unloading organization standard is as follows: 1. The unloading control, unloading investigation, unloading organization, and the number of pneumatic car grouping are according to Figure 6 As shown;

[0084] The large slope alignment operation technical standard of the cleaning screen car: when aligning at a large slope, before going uphill, the cleaning screen machine and other large machine units are first uncoupled to reduce the weight of the whole train. A person is specially assigned to align at the slope, and the alignment is carried out at a distance of 300 meters, 100 meters, 50 meters, 10 meters, and 2 meters. When the locomotive with the cleaning screen car is aligned and parked, the train air pipe is reduced by more than 100KPa, the whole train is pressure maintained, and the hooks are then separated. When the cleaning screen car is aligned alone, the operation file is run, and when parked, the train air pipe is reduced by 100KPa for pressure maintenance.

[0085] Material car loading standards: each screening car is equipped with 4 material loading cars to load contaminated soil, and the condition of the ballast bed and the weather are investigated before construction. Every 150 meters of screening loads a material car;

[0086] Stable operation standards: in the construction operation, the frequency of the stabilizer is 32 Hz, and the frequency on the bridge is 30 Hz. The interface part extends forward for 50 meters;

[0087] Ballast car anti-scratching standards: 1. The wooden ties at the corresponding positions of the obstacles on the line are painted yellow to make obvious signs. 2. During the operation, the front end is assigned to investigate the obstacle situation. When approaching the obstacle, the operation speed is slowed down, and the speed should not exceed 2 km / h. For significant obstacles such as transponders, the car stops 10 meters away from the obstacle, the middle plow is retracted, and the work device is slowly approached to the obstacle after the car is stopped. Then, the precise reverse ballast operation is carried out (operating in the direction away from the obstacle).

[0088] Specifically, S5, S6, and S7 include: performing rough tamping operation, rough tamping using 09 tamping car or tamping stabilization to operate, aiming to lift low-lying areas and eliminate high points, controlling the horizontal and vertical sections to the same elevation, and optimizing the horizontal and vertical sections of the construction section to provide a good section for precise tamping. The rough tamping scheme is made by using inertial navigation trolley operation precision data after screening to eliminate low-lying areas and planar deviations in the screening section, making the overall section smooth, and completing the first track gauge precision adjustment before subsequent precise tamping. Precise tamping operation is performed. When on a slope, at the flat and vertical section, the slope rate is not greater than 0.5‰, and when the slope section is at the starting point or end point of the screening section, the slope starting point is extended to 20m-50m to the non-screening section to start the slope,

[0089] The fine tamping data aims to flatten the gentle slope, lower the low-lying area, and eliminate high points, and the horizontal and vertical sections are controlled at the same elevation and plane. The front vehicle lifting is not greater than 30 mm, the rear vehicle lifting is 10 mm, the tamping length is 2 km or more, and the fine tamping data lifting is 0 mm. When the lifting is less than 40 mm, the double tamping operation is not performed. When the lifting is 0 mm, the only stable operation is performed. When the limit is exceeded, the reverse operation or manual intervention is performed. After the coarse tamping and the first track gauge fine adjustment are completed, the fine tamping scheme is made by using the inertial navigation trolley operation fine measurement data, the first fine tamping is two tamping and two stabilizing, and the tamping and stabilizing operations are simultaneously performed. The second track gauge fine adjustment is completed before the second fine tamping, and the fine tamping operation is performed again. After the second track gauge fine adjustment is completed, the fine tamping scheme is made by using the inertial navigation operation fine measurement data again, the second fine tamping is two tamping and one stabilizing (the front vehicle tamping and stabilizing, and the rear vehicle tamping operation), and the tamping and stabilizing operations are simultaneously performed. Whether the reinforcing tamping is performed is determined according to the TQI and the fine measurement data. When the slope is followed, the slope must be followed at the gentle slope of the horizontal and vertical sections, the slope rate is not greater than 0.3 ‰, and the slope is followed when the slope section is at the starting point or the end point of the screening section. The slope starting point is extended to 30 m-60 m away from the non-screening section, and then the slope is started. The fine tamping data is mainly used to reduce the TQI, the front vehicle lifting is not greater than 15 mm, the track shifting is not greater than 10 mm, the rear vehicle lifting is 8 mm, and the tamping length is 2 km or more. When the limit is exceeded, the reverse operation or manual intervention is performed, and the selective double tamping is not performed.

[0090] In the embodiment of the present application, the coarse tamping is two tamping and two stabilizing, the first round of fine tamping after the stable connection is two tamping and one stabilizing, the elevation is controlled to be lower than the design by 25 mm, the second round of fine tamping and the reinforcing tamping are two tamping and one stabilizing, and the elevation is controlled to be lower than the design by 10 mm. The track gauge control is within 0.15.

[0091] Specifically, S8 includes quality re-inspection and analysis, appearance arrangement and acceptance, including track inspection trolley pushing, train connection returning to the station and entering the maintenance point, limit trolley pushing, operation personnel exiting the operation door, and clearing the track inspection. After the track inspection is completed, the line is opened, and post-opening operations are performed. Then, the project is completed,

[0092] In the embodiment of the present application, the city large machine section is responsible for the rough and fine appearance of the line, the fine appearance is responsible by the city comprehensive maintenance section, the track inspection trolley pushing is responsible by the city comprehensive maintenance section, and three daily moonlight track inspection trolleys are required to be pushed every day after the screening construction, which are respectively followed by two groups of screening units and one group of tamping and stabilizing connection. The operation quality of the construction section is detected, and the problem feedback is performed. After the construction is completed, the operation is performed according to the Figure 7 The line is opened after the track inspection is completed.

[0093] Please refer to Figure 8As another embodiment of the analysis method, as shown, including: after the operation, by the city comprehensive maintenance section, at the starting point and the end point of the day screening section, install a control ball at each hill, implement 24-hour remote monitoring, find out the abnormal, timely processing, EMU check-in,

[0094] Responsible for the city comprehensive maintenance section, the first train after the line opens Arrange technical staff to add passengers, and arrange competent personnel to add passengers at 8:00, 10:00, 13:00, 17:00, and 20:00. The problems found by the add passengers should be fed back in time. At the same time, the city ring island high-speed rail construction "operation and maintenance separation" mode is referred to Figure 8 .

[0095] The analysis method provides a scientific, efficient and intelligent analysis theory for the whole process of digital screening construction of high-speed rail:

[0096] Through the fixed formation mode of high-speed rail screening, the formation time is greatly reduced, and the problem of short length of the storage base track is effectively avoided. The implementation of the whole process of "digital" screening of high-speed rail improves the formation mode, replaces one 08 tamping car with a 09 tamping car, adds one set of tamping and stabilizing machine train, and realizes the operation mode of "screening tamping + rough tamping + fine tamping + reinforcement tamping". After the screening car is equipped with "08 tamping car + ballast distribution car + stabilizing car + 09 tamping car + stabilizing car", "08 tamping car + ballast distribution car + 09 tamping car + ballast distribution car + tamping and stabilizing machine train + tamping and stabilizing machine train" operation, "three tamping and two stabilizing" is realized, which further improves the construction quality of the line. At the same time, the unloading car is formed, and due to the full-length drop of the high-speed rail screening section, the amount of stone ballast used is small, and the screening track is mainly safe ballast. It is appropriate to hang 5-7 pneumatic unloading cars on the same day, which reduces the length of the formation and the weight of the locomotive traction,

[0097] Then, through the new tooling screening line auxiliary measurement system of the screening car, the level, direction and elevation data of the screening line can be directly reflected, and there is a working device that can make corresponding fine adjustment. Through observing the screening line auxiliary measurement system during the operation process, the level, direction and elevation control of the screening line can be understood in real time.

[0098] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A high-speed full-process digitalized screen cleaning construction method, characterized in that: The method comprises the following steps: S1, determining line design data and checking, and adopting fixed marshalling for construction operation process; S2, measuring and placing piles on the line, cooperating with screening work to operate according to the quality control standard of the screening path, and measuring the track surface elevation of the line after screening by using an auxiliary measurement system combined with a distance measurement module, thereby controlling the elevation of the screening section in real time; S3, daily construction operation process: (1) preparation before construction, before formal construction, a first-day construction rehearsal is formulated according to the first-day construction requirements, on the rehearsal day, the machine set is transferred from the storage point to the registration station according to the formal construction marshalling, after the lockout, the engineering vehicle simulates the formal construction and runs to the operation site, after arriving at the construction section, the plan is decomposed and positioned according to the construction plan, after decomposition, each vehicle is tested for parking, the track bed should not be disturbed, after the test is completed, the plan is connected, returned to the station and stored, and the time required for each link is focused on, aiming to guide the time control of each link of the subsequent formal construction; (2) preparation before lockout: ① construction plan, daily construction quality review meeting is held by the workshop team, section control staff, special team, team leader, workshop plan and technology, the construction quality and existing problems of the previous day are summarized, and the key points of the day are analyzed, and the targeted construction plan is formulated, the key points mainly include the following points: Ⅰ. Key time point control: the screening machine parking time and the machine set connecting and returning to the station time are strictly controlled, and the operation time of other processes is ensured to ensure the line to be opened on time; Ⅱ. According to the slope of the operation site, the sequence and position of the decomposition and positioning and the connection are determined, and the situation that the screening machine cannot be normally connected due to insufficient power on the large uphill after construction is prevented; Ⅳ. According to the site investigation and the amount of starting track of the next day, the unloading mileage is reasonably formulated to ensure that the coarse tamping and fine tamping are full of ballast, and attention should be paid to avoid overfull ballast in the bridge section; S4, preliminary tamping operation is performed, and after the unloading, stabilizing operation is completed, secondary tamping operation is performed, the first distance measurement module data after screening operation is used to guide the preliminary tamping operation, and the second distance measurement module before the secondary tamping operation is used to guide the secondary tamping operation; S5, coarse tamping operation is performed, coarse tamping scheme is made by using inertial navigation operation precision measurement data after screening, low-lying and plane deviation in the screening section are eliminated to make the whole section smooth, and the first track gauge precision adjustment is completed before subsequent fine tamping; S6, fine tamping operation is performed, after coarse tamping and the first track gauge precision adjustment are completed, fine tamping scheme is made by using inertial navigation operation precision measurement data, tamping operation is performed, and tamping stabilizing operation is performed, and the second track gauge precision adjustment is completed before subsequent fine tamping; S7, fine tamping operation is performed again, after the second track gauge precision adjustment is completed, fine tamping scheme is made again by using inertial navigation operation precision measurement data, tamping operation is performed, and tamping stabilizing operation is performed, and whether to perform supplementary tamping is determined according to the TQI and the precision measurement data; S8, quality review and analysis are performed, and appearance arrangement and acceptance are performed, and then the project is completed; ​ Specifically, S1 includes: determining and reviewing the line design data, and using a fixed formation mode to group the work cars and ballast unloading cars. In the fixed formation mode used for screening, one 08 tamping car is replaced with a 09 tamping car, and a ballast distribution workshop and a set of tamping and stabilizing units are added to achieve the "screening and tamping + coarse tamping + fine tamping + reinforcing tamping" operation mode. After the screening car is equipped with "08 tamping car + ballast distribution car + stabilizing car + 09 tamping car + stabilizing car" and "08 tamping car + ballast distribution car + 09 tamping car + ballast distribution car + tamping and stabilizing unit + tamping and stabilizing unit" operation, three tamping and two stabilizing are achieved. Before the formal construction, a first-day construction drill is formulated according to the first day's construction needs. After the drill, an inventory is carried out, and the cars are numbered, labeled, and then the construction is closed. The engineering train shunting operation is carried out, a protection system is established, preparations are made before the operation, and the engineering train is started and aligned after the closure is completed.

2. The high-speed rail full-process digitalized screen cleaning construction method according to claim 1, characterized in that: The S2 section specifically includes: measuring and setting stakes along the line; according to the control standards for the entry and exit of the screening vehicle at the ridge, and in conjunction with the control standards for the screening track, monitoring the changes in various data during the operation in real time using the auxiliary measurement system for the new screening vehicle tooling, and making fine adjustments to the corresponding data. At the same time, the static geometric dimensions of the line should meet the following requirements: track gauge deviation -6 to +12 mm, horizontal difference less than 25 mm, triangular pit less than 30 mm, rail gap less than 30 mm, and the curve visually smooth without superelevation. The operation is carried out in conjunction with the control standards for normal operation of the screening vehicle, the control standards for the excavation distance and the slope of the ridge, the control standards for preventing high points in the screening track, the control standards for the "sleeve-through" excavation distance at the ridge, and the control standards for the slope ratio of the screening elevation surface and the existing elevation surface on the last day of the screening stage. After the screening is completed, the speed level is gradually increased to normal speed during the four-day acceleration and tamping stage, while the slope ratio is controlled to be no more than 0.3‰ to control the connection between the screening elevation surface and the existing elevation surface.

3. The high-speed rail full-process digitalized screen cleaning construction method according to claim 2, characterized in that: The new tooling of the screening vehicle, the auxiliary measurement system for the screening line, can intuitively reflect the data such as the level, direction, and elevation of the screening line, and has a working device that can make corresponding fine adjustments. During the screening operation, by observing the auxiliary measurement system for the screening line, the level, direction, and elevation control of the screening line can be understood in real time. If the level deviation is too large, the operator at position five can adjust the backfill angle and the amount of ballast to reduce the difference in level. Ⅰ. If the horizontal deviation is too large, the operator at position 5 can reduce the horizontal difference by adjusting the backfill angle and the amount of ballast to be lowered. II. If the directional deviation is too large, the operator at position three should control the directional device to move it to the left or right to achieve the desired value; III. If the actual elevation does not reach the specified elevation, and the specified elevation is 50-60mm lower than the design elevation, the operator at position three should immediately control the track-lifting device to reduce the excavation depth to achieve the ideal elevation value; otherwise, the excavation depth should be appropriately reduced.

4. The high-speed rail full-process digitalized screen cleaning construction method according to claim 1, characterized in that: In step S3, the workshop plans to prepare a construction plan according to the approved daily construction schedule: ①Hold a large machine screen, complete the work of the sub-completion meeting, organize the sub-completion meeting, Guangzhou large machine section at all levels of package to control personnel, workshop management personnel, each operation team, outsourcing construction team, Haikou comprehensive maintenance section of each professional person in charge of the meeting; ②Participate in the preparatory meeting, summary meeting: led by the railway department, construction subject units, skylight common units, all participating units; ③Hold a second subcontracting team sub-conference, according to the provisions of the organization held a second subcontracting team sub-conference; ④Personnel in place and machine, material counting, all in and out of the work door of the operating personnel, machine, material and so on are counted and statistics, all machine need to be numbered, paste retroreflective signs, numbered rules: in addition to handheld intercom, all machine brush red retroreflective paint or paste retroreflective signs, according to "workshop abbreviation 2-bit - machine code 2-bit - digital serial number 3-bit" style for numbering identification, QS-GD-001, the first symbol QS represents the name of the screen car workshop, the second symbol represents the machine tool code, inertial navigation trolley for "GD" indicates, the third symbol for digital number, all from 001, continuous numbering; ⑤Work door management, personnel, tool counting is completed, all operating personnel in accordance with the order of entering the work door group queuing outside the work door waiting, after the blockade order issued by Haikou comprehensive maintenance section open work door, each group of operating personnel in order to enter the queue; ⑥The order of entry: Guangzhou large machine section protection personnel, mound excavation group, Haikou comprehensive maintenance section of each professional group, artificial sleeper group, track fine tuning group, Guangzhou large machine section slope screen group, Haikou comprehensive maintenance section of power measurement group, inertial navigation trolley measurement group, solar track inspection trolley detection group, gauge trolley detection group, Guangzhou large machine section precision ramming group, appearance finishing group; ⑦Construction of the registration application, the liaison officers of each unit in accordance with the provisions of time to post, by the construction of the main unit responsible for the registration of the-46, the liaison officers of each unit to sign the recognition, to the dispatching office application for construction blockade, the construction of dispatching command; ⑧Engineering train operation, the last EMU through Wenchang station, large machine group from Wenchang comprehensive maintenance work area into Wenchang station 3, connected into a column waiting for the blockade, Wenchang comprehensive maintenance work area artificial switch by Guangzhou large machine section arranged for the responsible person and cadre control.

5. The high-speed rail full-process digitalized screen cleaning construction method according to claim 1, characterized in that: The S4 specifically includes: the screen should be implemented on the day of three ramming two stable system, 08 ramming car preliminary operation, after the completion of the operation of the unloading car, stable car operation again for the second time ramming operation, unloading car operation of the unloading control, investigation, organization, and make the screen car in the large slope of the positioning operation technical standard, material car in line with the loading standard, stable car in line with the operation standard, and the matching car in line with the anti-scratch standard, the screen on the day of the screen operation using the first two-dimensional laser range finder data to guide the 08 ramming car operation, and then using the second two-dimensional laser range finder before the 09 ramming car to guide the 09 ramming car operation.

6. The high-speed rail full-process digitalized screen cleaning construction method according to claim 1, characterized in that: The S5 specifically comprises: rough tamping operation, the rough tamping operation is carried out by using a 09 tamping vehicle or a tamping stabilizer, low-lying areas are lifted and high points are eliminated as targets, the horizontal and vertical sections are controlled at the same elevation, and the horizontal and vertical sections of the construction section are optimized to provide a good section for fine tamping, rough tamping schemes are made by using inertial navigation trolley operation after screening, low-lying areas and horizontal deviations in the screening section are eliminated, the section is smooth as a whole, and the first track gauge fine adjustment is completed before subsequent fine tamping.

7. The high-speed rail full-process digitalized screen cleaning construction method according to claim 1, characterized in that: The S6 specifically comprises: fine tamping operation, when on a slope, the horizontal and vertical sections are gentle, the slope rate is not greater than 0.5‰, the slope is started from the non-screening section 20m-50m away from the starting point of the screening section, fine tamping data are used to flatten, lift low-lying areas and eliminate high points as targets, the horizontal and vertical sections are controlled at the same elevation and plane, the front vehicle lifting and switching track amount is not greater than 30mm, the rear vehicle full-range general tamping lifting amount is 10mm, the tamping stabilizer tamps according to the fine tamping data, when the front vehicle lifting amount of the tamping stabilizer is less than 40mm, no double tamping operation is carried out, when the fine tamping data lifting amount is 0mm, only stabilizing is carried out, when the over-limit boundary appears, reverse driving or manual intervention is carried out, after the rough tamping and the first track gauge fine adjustment are completed, the fine tamping schemes are made by using inertial navigation trolley operation, the first fine tamping is two tamping and two stabilizing, and tamping and stabilizing operations are carried out simultaneously, and the second track gauge fine adjustment is completed before subsequent fine tamping.

8. The high-speed rail full-process digitalized screen cleaning construction method according to claim 1, characterized in that: The S7 specifically comprises: fine tamping operation again, after the second track gauge fine adjustment is completed, the fine tamping schemes are made by using inertial navigation operation again, the second fine tamping is two tamping and one stabilizing, the front vehicle of the tamping stabilizer tamps and stabilizes, the rear vehicle carries out tamping operation, and tamping and stabilizing operations are carried out simultaneously, whether to carry out reinforcing tamping is determined according to the TQI and fine measurement data, when on a slope, the horizontal and vertical sections are gentle, the slope rate is not greater than 0.3‰, when the starting point of the slope is at the starting point or the end point of the screening section, the starting point of the slope is extended to the non-screening section 30m-60m away, and then the slope is started, the fine tamping data are mainly used to reduce the TQI, the front vehicle lifting amount is not greater than 15mm, the switching track amount is not greater than 10mm, the rear vehicle full-range general tamping lifting amount is 8mm, the tamping length must be greater than 2km, when the over-limit boundary appears, reverse driving or manual intervention is carried out, and no selective double tamping is carried out.

9. The high-speed rail full-process digitalized screen cleaning construction method according to claim 1, characterized in that: The S8 specifically comprises: quality re-inspection and analysis, appearance arrangement and acceptance, including track inspection trolley pushing, train connection returning to the station and entering the maintenance point, limit trolley pushing, operation personnel exiting the operation door, and track cleaning inspection, after the track cleaning inspection is completed, the line is opened, post-opening operation is carried out, and the project is completed.

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