Construction method of pumped storage power station vertical shaft slip form trolley

Abstract

The invention relates to the technical field of slip form construction monitoring, in particular to a construction method of a pumped storage power station vertical shaft slip form trolley, which comprises the following steps of: S1, establishing a vertical shaft slip form three-dimensional coordinate matrix, and defining an accurate position of a template in a vertical shaft space by defining a unified three-dimensional coordinate system; s2, constructing a sliding and lifting time sequence system, establishing a moving time sequence track in a template moving construction process by taking a construction time sequence as an axis and taking each sliding and lifting of the template as a point, and determining coordinate change of the template in the sliding and lifting process under each time sequence based on the moving time sequence track; s3, construction dynamic monitoring is carried out, and the maximum allowable values of circle center deviation, perpendicularity deviation, slip height deviation and template coordinate deviation are determined; according to the scheme, by building the three-dimensional coordinate matrix of the vertical shaft slip form, building the slip-up sequential system, implementing construction dynamic monitoring and correcting the deviation in groups of the jacks, accurate positioning of slip form construction, controllability of the whole process and timely correction of the deviation are achieved, and the quality and efficiency of vertical shaft construction are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slip-form construction monitoring, in particular to a construction method of a vertical shaft slip-form trolley of a pumped storage power station. BACKGROUND

[0002] The vertical shaft of a pumped storage power station is a key core structure of the power station water delivery and power generation system, and its construction precision directly affects the overall operation safety and stability of the power station, and the construction of the vertical shaft slip-form trolley is a core process that determines the quality and efficiency of the vertical shaft structure forming.

[0003] The traditional construction method has obvious deficiencies: there is a lack of unified and accurate three-dimensional coordinate positioning system, the template arrangement relies on manual experience, and radial deviation, ring misplacement and vertical elevation deviation are prone to occur; there is no systematic slip-up timing plan, the slip-up time has no corresponding relationship with the template coordinate change, the construction process is disordered and cannot be traced back; there is a lack of dynamic monitoring and accurate correction mechanism, and the deviation is accumulated and then found, which easily leads to template deformation and substandard vertical shaft structure, increasing the cost of rework and the risk of delay in construction period.

[0004] Therefore, the present application provides a construction method of a vertical shaft slip-form trolley of a pumped storage power station, which establishes a vertical shaft slip-form three-dimensional coordinate matrix, constructs a slip-up timing system, and implements dynamic construction monitoring and jack grouping correction, thereby realizing accurate positioning of slip-form construction, full-process controllability, timely correction of deviation, and ensuring the construction quality and efficiency of the vertical shaft. SUMMARY

[0005] The technical problem solved by the present application is that the template arrangement relies on manual experience, and radial deviation, ring misplacement and vertical elevation deviation are prone to occur.

[0006] In view of the deficiencies of the prior art, the present application provides a construction method of a vertical shaft slip-form trolley of a pumped storage power station, thereby solving the technical problems mentioned in the background art.

[0007] To achieve the above purpose, the present application realizes the following technical solutions:

[0008] A construction method of a vertical shaft slip-form trolley of a pumped storage power station, comprising the following steps:

[0009] S1, establishing a vertical shaft slip-form three-dimensional coordinate matrix, defining a unified three-dimensional coordinate system to clearly determine the accurate position of the template in the vertical shaft space;

[0010] S2, constructing a slip-up timing system, taking the construction time sequence as the axis and the slip-up of each template as the point, establishing the movement timing track in the template movement construction process, and determining the coordinate change of the template in the slip-up process under each timing based on the movement timing track;

[0011] S3, construction dynamic monitoring, clear the maximum allowable value of four core deviations of the center offset, perpendicularity deviation, sliding height deviation and formwork coordinate deviation, calculate the actual deviation based on the coordinate change in the sliding process, compare the deviation with the preset value, and then locate the deviation problem;

[0012] S4, sliding deviation correction, by controlling the lifting amount, lifting speed or start-stop timing of the jacks at different positions, using the rigid linkage characteristics of the formwork, the deviation is gradually corrected to the allowable range.

[0013] In one possible implementation, the three-dimensional coordinate system in S1 is that the shaft design center is the origin of the three-dimensional coordinate system, the X-axis is directed radially along the shaft to the permanent control pile of the power plant site; the Y-axis is perpendicular to the X-axis, and the clockwise direction along the shaft is positive; the Z-axis is vertical along the shaft, and the design elevation of the wellhead is ±0.00 m, which is used to mark the elevation position of the component;

[0014] The X-coordinate of the formwork center point is the radial distance of the formwork center point to the shaft design center ; the Y-coordinate of the formwork center point is ; and the Z-coordinate of the formwork center point is .

[0015] In one possible implementation, the mobile time sequence trajectory in S2 specifically includes:

[0016] Divide the construction stage: if the entire construction needs m times of sliding to complete, then divide the process into m stages 、 ,..., , 1 stage corresponds to 1 sliding;

[0017] Determine the sliding time point: according to the construction progress plan and the actual situation on site, determine the starting time of each sliding , form a time sequence 、 ,..., ;

[0018] Take the time sequence as the axis and the sliding of each formwork as the point to establish the mobile time sequence in the formwork moving construction process. At each time point , the formwork slides from the current position to the next position to form a mobile time sequence point. By connecting all mobile time sequence points, the mobile time sequence trajectory of the formwork in the entire construction process can be obtained.

[0019] In one possible implementation, the coordinate establishment in the formwork sliding process in S2 includes:

[0020] New ring angle , new X-coordinate , new Y-coordinate , the new Z coordinate , at each movement timing point;

[0021] After each slide-up, record the new coordinate of the template center point ; then take the new coordinate as the initial coordinate of the next slide-up, that is: ; repeat the above steps until all slide-up operations are completed.

[0022] In a possible implementation, the template deviation determination in S3 specifically includes:

[0023] Center offset: , if , it is determined that the center offset deviation;

[0024] Perpendicularity deviation: , if , it is determined that the perpendicularity deviation;

[0025] Slide-up height deviation: , if , it is determined that the slide-up height deviation;

[0026] Template coordinate deviation: and , if or , it is determined that the template coordinate deviation.

[0027] In a possible implementation, the slide-up deviation correction in S4 specifically includes:

[0028] The center offset deviation means that the template center deviates from the design center of the shaft. For the jack group in the opposite direction of the offset direction, the lift of a single slide-up is increased. For the jack group in the same direction of the offset direction, the lift of a single slide-up is reduced. The jacks in the remaining directions remain at the standard lift, so as to ensure that the template only deviates in the center direction for correction;

[0029] The perpendicularity deviation means that the template ring angle exceeds the tolerance. First, the ring section and the skew direction of the perpendicularity deviation exceeding the tolerance are found through monitoring data. The jacks are segmented in the ring direction. For the segmented groups in the opposite direction of the deviation, the lifting speed of the jacks is increased. For the segmented groups in the same direction of the deviation, the lifting speed of the jacks is reduced. In addition, the jacks in the remaining segmented groups remain at the standard speed, so as to gradually correct the template ring angle through the speed difference;

[0030] The slide-up height deviation is divided into single slide-up height deviation and overall height deviation. For the single slide-up height If the sliding height is insufficient, the single stroke of all jacks will be increased by the corresponding insufficient amount to compensate for the deviation at the next sliding; if the sliding height is excessive, the single stroke of all jacks will be reduced by the corresponding excessive amount to offset the deviation at the next sliding; and if the single sliding height is out of tolerance, the local jacks of the positioning elevation offset group will be increased in stroke at the next sliding, and the remaining groups will maintain the standard stroke until the overall elevation is consistent with the design;

[0031] The template coordinate deviation is divided into radial problems of X-axis out-of-tolerance and circumferential problems of Y-axis out-of-tolerance. If only the X-axis is out-of-tolerance, the jacks in the negative direction of the X-axis are increased in stroke and the jacks in the positive direction are decreased in stroke to correct the radial position. If only the Y-axis is out-of-tolerance, the jacks in the positive direction of the Y-axis are increased in speed and the jacks in the negative direction are decreased in speed to correct the circumferential position. If both the X-axis and the Y-axis are out-of-tolerance, the above two adjustments are performed simultaneously.

[0032] Compared with the prior art, the beneficial effects are:

[0033] 1. In the present scheme, by establishing a three-dimensional coordinate matrix with the design center of the shaft as the origin, clearly defining the X-axis (radial to the permanent control pile), the Y-axis (circumferential clockwise), and the Z-axis (vertical with the wellhead as ±0.00m), and combining with the template height, shaft diameter and other parameters, the X, Y and Z coordinates of each template are accurately calculated, realizing the accurate positioning of the template in the radial, circumferential and vertical directions of the shaft space, solving the problem of ambiguous template arrangement and easy mispositioning in traditional construction, laying a precise spatial reference for sliding construction, ensuring that the shaft structure contour matches the design height, and avoiding structural risks caused by positioning deviation;

[0034] 2. In the present scheme, by dividing the construction stage according to the number of sliding times, determining the sliding time point according to the progress and site conditions to build a sliding time sequence system, dynamically updating the template coordinates combined with the sliding height, radial / circumferential adjustment amount, and then adjusting the jacking stroke or speed of the jacks for targeted correction of deviation, the sliding construction "time-position" whole process is controllable. Compared with traditional disordered sliding, this method makes each sliding traceable and controllable, reduces the delay caused by blind operation, and improves construction efficiency and process stability;

[0035] 3. In the present scheme, by establishing deviation preset rules for center offset, perpendicularity, sliding height and template coordinates, the actual coordinate changes are compared with the preset values to identify the deviation type, and then the jacks are adjusted for accurate correction. This scheme realizes dynamic monitoring and early intervention of deviation. It avoids the problems that are found after deviation accumulation in traditional construction, effectively prevents risks such as template deformation and substandard shaft structure, reduces rework cost, ensures stable construction quality, and reduces the probability of safety accidents caused by deviation. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above description is only a summary of the technical solutions of the present application. In order to make the technical solutions of the present application clearer, and to enable the technical solutions to be implemented according to the content of the description, the preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0037] Figure 1 The method steps of the present application are shown in the flow chart. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present application will be described in detail with reference to the accompanying drawings. However, the present application can be implemented in various different forms, and therefore the present application is not limited to the embodiments described below;

[0039] The technical solutions in the embodiments of the present application are to solve the problems in the above background art, and the general idea is as follows:

[0040] Embodiment:

[0041] Please refer to Figure 1 The present embodiment introduces a construction method of a vertical shaft slip form trolley of a pumped storage power station, including the following steps:

[0042] S1, establish a vertical shaft slip form three-dimensional coordinate matrix, define a unified three-dimensional coordinate system, and clearly define the accurate position of the formwork in the vertical shaft space.

[0043] S1.1, define the origin and axis network of the coordinate system, taking the design center of the vertical shaft as the origin of the three-dimensional coordinate system, wherein:

[0044] The X-axis points to the permanent control pile of the power station plant along the radial direction of the vertical shaft; the Y-axis is perpendicular to the X-axis, and the clockwise direction along the ring direction of the vertical shaft is the positive direction, which is used to define the ring direction position of the climbing rod, formwork and other components; the Z-axis is along the vertical direction of the vertical shaft, and the design elevation of the wellhead is ±0.00m, which is used to mark the elevation position of the components;

[0045] S1.2, define the coordinates of the formwork, taking the center position of the formwork as the point, and determining the coordinates of each formwork through the height of the formwork, the diameter of the vertical shaft, and the number of formworks under the specific circumference of the vertical shaft, as follows:

[0046] Determine the X coordinate of the formwork center point:

[0047] Calculate the radial distance from the formwork center point to the design center of the vertical shaft, that is, the X coordinate of the formwork center point. Assuming that the height of the formwork is H, the diameter of the vertical shaft is D, and the offset of the formwork along the radial direction of the vertical shaft is The radial distance from the formwork center point to the design center of the vertical shaft), then the X coordinate of the formwork center point is ;

[0048] Determine the Y coordinate of the formwork center point:

[0049] ​According to the number of templates under the perimeter of the shaft, the perimeter of the shaft is equally divided to determine the circumferential position of each template. Assuming the perimeter of the shaft is C, the number of templates is n, then the circumferential distance of each template is C / n. Taking the center point of the first template as the starting point, the center point positions of each template are determined in the clockwise direction. Assuming the circumferential angle of the center point of the i-th template is (the positive direction of the X-axis is the starting direction, and the clockwise direction is the positive direction), then the Y coordinate of the template center point is ;

[0050] Determine the Z coordinate of the template center point:

[0051] According to the height of the template and the elevation distribution of the shaft, the elevation position of the template center point is determined; assuming the height of the template is H, the elevation range of the shaft is from the design elevation of the wellhead (±0.00m) downward, and the template is located at the k-th layer of the shaft (counting downward from the wellhead), then the Z coordinate of the template center point is (assuming the height of each layer of template is equal, and the template center point is located at the midpoint of the template height).

[0052] S2, build sliding timing system

[0053] S2.1 Take the construction time sequence as the axis and the sliding of each template as the point to establish the moving timing trajectory in the template moving construction process;

[0054] Division of construction time sequence:

[0055] The entire construction process is divided into several construction stages according to the time sequence, and each stage corresponds to the sliding operation of a template, i.e. the entire construction process needs m times of template sliding operation, then the construction time sequence can be divided into m stages, respectively denoted as 、 、 … .

[0056] Determination of template sliding time point:

[0057] According to the construction progress plan and the actual construction situation, the specific time point of each template sliding is determined, and the time point of the i-th template sliding is set as , then a time sequence can be obtained: 、 、 … , wherein represents the start time of the i-th template sliding. Establishment of moving timing:

[0058]

[0059] ​Using time series as the axis and each slipform movement as a point, the movement sequence of the formwork during construction is established, and at each time point... The template slides from its current position to the next position, forming a movement time point; by connecting all the movement time points, the movement time trajectory of the template throughout the entire construction process can be obtained.

[0060] S2.2. Based on the movement timeline trajectory in S2.1, determine the coordinate changes of the template during the slipforming process at each timeline.

[0061] During each template slipforming process, the coordinate change of the template center point needs to be calculated based on the slipforming height, radial adjustment amount, and circumferential adjustment amount, as detailed below:

[0062] Assume that the template lift height is at the i-th lift. Radial adjustment amount is The circumferential adjustment amount is ,but:

[0063] New circumferential angle ,in, It is the first Circumferential angle after the second slip;

[0064] New X coordinate ,in The initial X coordinate;

[0065] Calculate the new Y coordinate ,in The initial Y coordinate;

[0066] Calculate the new Z coordinate ,in It is the first Z-coordinate after the second slip;

[0067] At each moving time point Record the coordinate changes of the template center point and update the template's coordinate information; that is, first, record the new coordinates of the template center point after each slide. Then the new coordinates As the initial coordinates for the next slip, that is: Repeat the above steps until all slip operations are completed.

[0068] S3. Construction dynamic monitoring: By comparing the actual coordinate changes over time with pre-established preset rules, it is possible to determine whether any deviations occur during the slipforming process.

[0069] S3.1 Establish preset rules

[0070] Center offset preset rule: define the maximum allowed center offset , i.e. the maximum allowed radial deviation of the template center point from the design center of the shaft;

[0071] Perpendicularity deviation preset rule: define the maximum allowed perpendicularity deviation , i.e. the maximum allowed angular deviation of the template in the hoop direction;

[0072] Slide height deviation preset rule: define the maximum allowed slide height deviation , i.e. the maximum allowed deviation of each slide height;

[0073] Template coordinate deviation preset rule: define the maximum allowed template coordinate deviation and , i.e. the maximum allowed deviation of the template center point in the X and Y axis directions.

[0074] S3.2, compare the actual coordinate changes under the timing with the preset

[0075] Center offset comparison: by calculating the actual center offset , determine whether it exceeds the preset maximum center offset ;

[0076] Perpendicularity deviation comparison: by calculating the actual perpendicularity deviation , determine whether it exceeds the preset maximum perpendicularity deviation ;

[0077] Slide height deviation comparison: by calculating the actual slide height deviation , determine whether it exceeds the preset maximum slide height deviation ;

[0078] Template coordinate deviation comparison: by calculating the actual template coordinate deviation and ; determine and whether they respectively exceed the preset maximum template coordinate deviation and .

[0079] S3.3, slide deviation type analysis

[0080] If , it is judged as a center offset deviation;

[0081] If , it is judged as a perpendicularity deviation;

[0082] If If the sliding height deviation is greater than the sliding height deviation threshold value, it is determined that the sliding height deviation is large;

[0083] If the template coordinate deviation is greater than the template coordinate deviation threshold value, it is determined that the template coordinate deviation is large. Or If the template coordinate deviation is greater than the template coordinate deviation threshold value, it is determined that the template coordinate deviation is large.

[0084] S4, sliding deviation correction, the core logic of the jack deviation correction of the four types of deviations is "targeted grouping adjustment", specifically, by controlling the lifting amount, lifting speed or start-stop timing of the jacks at different positions, the rigidity of the template is used to gradually correct the deviation to the allowable range.

[0085] S4.1, center offset deviation, the essence of the center offset is that the template center deviates from the design center of the shaft, and needs to be corrected by increasing the lifting amount of the jacks in the opposite direction and reducing the lifting amount of the jacks in the same direction, and the template is pulled back to the center, specifically:

[0086] Positioning offset direction: determine the offset direction through monitoring data, such as the template center deviating to the positive direction of the X axis and the negative direction of the Y axis;

[0087] Grouping adjustment lifting: for the jacks in the opposite direction of the offset direction (such as the symmetric group of the negative direction of the X axis and the positive direction of the Y axis), increase the lifting of a single sliding; for the jacks in the same direction of the offset direction (such as the symmetric group of the positive direction of the X axis and the negative direction of the Y axis), reduce the lifting of a single sliding; and the rest of the jacks maintain the standard lifting to ensure that the template only deviates to the center direction for correction;

[0088] Dynamic review: after adjusting the sliding once, re-measure the template center coordinates, if the deviation is reduced, continue to adjust at this amplitude, until the deviation , and restore the standard lifting of all jacks;

[0089] It should be noted that the lifting adjustment amount needs to be "small steps and multiple times" to avoid excessive single adjustment amplitude leading to template deformation; at the same time, it needs to ensure that the symmetric group jacks are adjusted synchronously to prevent new verticality deviation.

[0090] S4.2, verticality deviation, verticality deviation is the ring angle of the template, which is greater than the verticality deviation threshold value (such as excessive clockwise deflection of a segment of the template), needs to be adjusted by the speed difference of "deviation opposite direction segmented jack speed up, same direction segmented jack speed down", to adjust the ring attitude of the template, specifically:

[0091] Determine the deviation segment and direction: find the ring segment (such as 1 / 4 segment of the circumference of the shaft) and the deflection direction (such as clockwise deflection) of the verticality deviation through monitoring data;

[0092] Group adjustment speed: divide the jacks into 4-8 segments according to the ring direction (e.g. each segment corresponds to 90° or 45°), for the segmented group in the opposite direction of the deviation (e.g. the corresponding segment in the counterclockwise direction), increase the lifting speed of the jacks; and for the segmented group in the same direction of the deviation (e.g. the over deviation segment in the clockwise direction), reduce the lifting speed of the jacks; in addition, the remaining segmented groups maintain the standard speed, and the ring direction angle gradually returns to normal through the speed difference;

[0093] Real-time monitoring of angle: re-measure the ring direction angle every 1m height of sliding lifting (or 1 construction stage) , if the deviation , immediately restore the standard speed of all jacks;

[0094] It should be noted that the speed adjustment needs to be linked with the sliding lifting height to avoid excessive local speed causing concrete leakage at the formwork joint; in addition, if the deviation is large, the "local jacks pause for 1-2 cycles" (e.g. over deviation segment jacks pause for 1 sliding lifting) can be used to enhance the correction effect.

[0095] S4.3, sliding lifting height deviation, the sliding lifting height deviation is divided into two types: single sliding lifting height over deviation and overall elevation deviation, which need to be directly calibrated through "additional lifting / reduced lifting", specifically:

[0096] For single sliding lifting height deficiency / excess ( over deviation): if the current sliding lifting height is insufficient, in the next sliding lifting, the single lifting stroke of all jacks is increased by the corresponding insufficient amount, which is a one-time correction of the deviation; if the current sliding lifting height is excessive, in the next sliding lifting, the single lifting stroke of all jacks is reduced by the corresponding excess amount, which offsets the deviation;

[0097] For overall elevation deviation: locate the local jack group with elevation deviation, in the next sliding lifting, only increase the lifting stroke of this group of jacks, and the standard lifting stroke is maintained for the remaining groups, until the overall elevation is consistent with the design;

[0098] It should be noted that the additional lifting / reduced lifting is only for 1 sliding lifting cycle to avoid multiple accumulations leading to new deviations, if the deviation > 5cm, it needs to be supplemented / reduced for 2-3 times to prevent the formwork from being deformed by tension.

[0099] S4.4, formwork coordinate deviation, formwork coordinate deviation (X or Y axis over deviation) is a "subdivision performance" of the center deviation and perpendicularity deviation (e.g. X axis over deviation is mostly radial problem, Y axis over deviation is mostly ring direction problem), which needs to be combined with the previous two methods to adjust the jacks in the corresponding direction, specifically:

[0100] Determine the coordinate deviation type:

[0101] If only X axis over deviation (e.g. If the X-axis is out of tolerance (e.g. 2cm larger than the design value), adjust by the method of "offset deviation of the center": more lifting of the jack in the negative direction of the X-axis and less lifting in the positive direction of the X-axis, to correct the radial position;

[0102] If only the Y-axis is out of tolerance (e.g. 2cm larger than the design value), adjust by the method of "verticality deviation": increase the speed of the corresponding ring segment jack in the positive direction of the Y-axis and decrease the speed in the negative direction of the Y-axis, to correct the ring position;

[0103] If both the X-axis and the Y-axis are out of tolerance, simultaneously perform the above two adjustments, but reduce the adjustment amplitude to avoid mutual interference;

[0104] Step-by-step review of coordinates: after each adjustment, measure the X-axis and Y-axis coordinates simultaneously until both are Then restore the normal parameters of the jack;

[0105] It should be noted that when adjusting in multiple directions, the axis with greater deviation should be corrected first, and after adjustment, the flatness of the template joint should be checked to prevent local misalignment caused by coordinate correction.

[0106] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be realized in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than the foregoing description, and it is intended to include all changes coming within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0107] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.​

Claims

1. A construction method for a slipform trolley for a pumped storage power station shaft, characterized in that, Includes the following steps: S1. Establish a three-dimensional coordinate matrix for the vertical shaft sliding formwork. By defining a unified three-dimensional coordinate system, the precise position of the template in the vertical shaft space is determined. S2. Construct a slipform timing system, taking the construction time sequence as the axis and each slipform movement as a point, establish the movement timing trajectory of the formwork during the construction process, and determine the coordinate changes of the formwork during the slipform process at each time sequence based on the movement timing trajectory. S3. Construction dynamic monitoring: Determine the maximum allowable values ​​of four core deviations: center offset, verticality deviation, slip height deviation, and formwork coordinate deviation. Calculate the actual deviation based on coordinate changes during the slip process, compare the deviation with the preset value, and then locate the deviation problem. S4. Slipform deviation correction: By controlling the lifting amount, lifting speed or start-stop sequence of jacks at different positions, the deviation is gradually corrected to the allowable range by utilizing the rigid linkage characteristics of the template.

2. The construction method of a slipform trolley for a pumped storage power station shaft as described in claim 1, characterized in that, In S1, the three-dimensional coordinate system has the design center of the shaft as the origin, the X-axis is radially pointing towards the permanent control piles in the power plant area, the Y-axis is perpendicular to the X-axis and is positive in the clockwise direction along the shaft, and the Z-axis is vertical along the shaft with the design elevation of the shaft opening as ±0.00m, used to mark the elevation position of components. The X-coordinate of the template center point is the radial distance from the template center point to the center of the shaft design circle. The Y-coordinate of the template center point is The Z-coordinate of the template center point is .

3. The construction method of a slipform trolley for a pumped storage power station shaft as described in claim 1, characterized in that, The establishment of the movement time sequence trajectory in S2 specifically includes: Construction phase division: If the entire construction requires m slipway operations, then the process is divided into m phases. , ... One stage corresponds to one slide; Determine the timing of slipforming: Based on the construction schedule and actual site conditions, determine the start time for each slipforming operation. Forming a time series , ... ; Using time series as the axis and each slipform movement as a point, the movement sequence of the formwork during construction is established, and at each time point... The template slides from its current position to the next position, forming a movement time point; by connecting all the movement time points, the movement time trajectory of the template throughout the entire construction process can be obtained.

4. The construction method of a slipform trolley for a pumped storage power station shaft as described in claim 1, characterized in that, The coordinate establishment during the template slipforming process in S2 includes: New circumferential angle New X coordinate New Y coordinate New Z coordinate At each moving time point; After each slip section, record the new coordinates of the template center point. Then the new coordinates As the initial coordinates for the next slip, that is: Repeat the above steps until all slip operations are completed.

5. The construction method of a slipform trolley for a pumped storage power station shaft as described in claim 1, characterized in that, The template deviation determination in S3 specifically includes: Center offset: ,like This is determined to be a deviation of the center of the circle; Verticality deviation: ,like This is determined to be a verticality deviation; Glide height deviation: ,like This was determined to be a deviation in lift height; Template coordinate deviation: and ,like or This was determined to be a template coordinate deviation.

6. The construction method of a slipform trolley for a pumped storage power station shaft as described in claim 1, characterized in that, S4 slip correction specifically includes: The center offset deviation means that the center of the template deviates from the design center of the shaft. For the jack group in the opposite direction of the offset direction, the lifting stroke of a single slide is increased; for the jack group in the same direction of the offset direction, the lifting stroke of a single slide is reduced; while the jacks in other directions maintain the standard lifting stroke to ensure that the template is only offset and corrected in the direction of the center. Verticality deviation is the circumferential angle of the template. If the deviation exceeds the tolerance, first use monitoring data to find the circumferential segment and the direction of the deviation that exceed the verticality tolerance. Then divide the jacks into circumferential segments. For the segment group with the deviation in the opposite direction, increase the lifting speed of the jacks; for the segment group with the deviation in the same direction, decrease the lifting speed of the jacks; and keep the other segment groups at the standard speed. By using the speed difference, the circumferential angle of the template is gradually corrected. Slip-up height deviation is divided into single slip-up height deviation and overall elevation offset. (The text then discusses single slip-up height deviation.) If the slipforming height is insufficient, the single lift of all jacks will be increased by the corresponding amount during the next slipforming operation to make up for the deviation in one go; if the slipforming height is excessive, the single lift of all jacks should be reduced by the corresponding amount during the next slipforming operation to offset the deviation; for single slipforming height exceeding the tolerance, the lift of the local jack group with the deviation in elevation will be increased only for that group of jacks during the next slipforming operation, while the other groups will maintain the standard lift, until the overall elevation is consistent with the design. Template coordinate deviation is divided into radial problems with X-axis deviation and circumferential problems with Y-axis deviation. If only the X-axis is out of tolerance, the jacks in the negative X-axis direction are raised more and in the positive X-axis direction are raised less to correct the radial position. If only the Y-axis is out of tolerance, the circumferential segmented jacks corresponding to the positive Y-axis direction are accelerated and decelerated in the negative Y-axis direction to correct the circumferential position. If both the X and Y axes are out of tolerance, the above two adjustments are performed simultaneously.

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