An ultra-wide bed leveling operation method based on a frame-type leveling machine

Abstract

The present invention belongs to the technical field of bed leveling construction, and relates to an ultra-wide bed leveling operation method based on a frame-type leveling machine, which includes: the leveling ship reaches the first ship position at one end in the width direction of the bed, lowers the leveling frame to the elevation position, the leveling trolley throws stones in stages and drives the scraper to move from the front end to the rear end of the frame to complete the leveling of the bed at this ship position; lift the leveling frame, the leveling ship moves along the width of the bed to the next ship position, so that a preset width overlapping area is formed between the leveling range of this ship position and the already leveled bed of the previous ship position; lower the frame above the elevation, the leveling trolley returns from the rear end to the front end of the frame; lower the leveling frame to the elevation position, the leveling trolley throws stones in stages and drives the scraper to move from the front end to the rear end of the frame to complete the leveling of the bed at the current ship position; lift the leveling frame again, the leveling ship moves along the width of the bed to the next ship position, and repeat the above steps until the leveling operation in the width direction of the bed is completed. The present invention solves the problem of ultra-wide bed leveling operation.

Description

Technical Field

[0001] The invention belongs to the technical field of bed leveling construction, and particularly relates to an ultra-wide bed leveling operation method based on a frame-type leveling machine. Background Art

[0002] At present, when carrying out underwater bed leveling operations, many use bottom-sitting leveling vessels for bed leveling. The bottom-sitting leveling vessel uses a frame-type leveling machine, which is located in the open space in the middle of the hull of the leveling vessel; the leveling machine mainly consists of an O-shaped leveling frame, leveling bogies connected to the leveling frame, multiple bins on the leveling bogies, and scrapers at the lower edge of the bins. A support device is installed at the bottom of the leveling frame; the leveling machine performs supplementary stone throwing and fine leveling operations on the bed that has been pre-thrown with stones and compacted. When the leveling vessel is carrying out bed leveling operations, first lower the leveling frame to the preset position and elevation, then throw the stones in the bins onto the bed to be leveled, and then the leveling bogies drive the scrapers to move along the leveling frame to level the area where stones have been thrown, thereby realizing the bed leveling operation.

[0003] Currently, bed leveling usually adopts full-width leveling, that is, the span range of the leveling frame can cover the width of the bed. After the bed leveling operation at the current ship position is completed, the leveling vessel moves along the length direction of the bed to the next ship position and continues the bed leveling operation at the next ship position. However, some special engineering projects require the bed to have a large width, far exceeding the maximum span range of the existing leveling frame. If a leveling frame with a larger span is designed, on the one hand, it is necessary to expand and transform the leveling vessel, which is extremely costly. On the other hand, the manufacturing difficulty of a leveling frame with a larger span is relatively high, and it is prone to large deformations. Moreover, it is very difficult to ensure the structural stability and reliability of the leveling frame with a larger span during the operation of the leveling bogies, which affects the elevation accuracy of the leveling frame and further affects the elevation control during the walking of the scraper, making it difficult to ensure the bed leveling accuracy.

[0004] In view of this, how to better realize the ultra-wide bed leveling operation has become an urgent technical problem in the industry. Summary of the Invention

[0005] Aiming at the deficiencies in the related technologies, the invention provides an ultra-wide bed leveling operation method based on a frame-type leveling machine to solve the technical problems mentioned in the background art.

[0006] The invention provides an ultra-wide bed leveling operation method based on a frame-type leveling machine, including the following steps:

[0007] S1. The leveling barge reaches the first barge position at one end of the bed width direction of the bed length section to be leveled. Lower the leveling frame and make its elevation meet the preset elevation requirement. The leveling trolley throws stones in stages and drives the scraper to move from the front end to the rear end of the leveling frame in stages to level the area where stones have been thrown, completing the bed leveling operation at the first barge position.

[0008] S2. Lift the leveling frame. The leveling barge moves along the bed width direction to the next barge position, and a lap zone with a preset width is formed between the levelable range corresponding to this barge position and the bed that has been leveled at the previous barge position.

[0009] S3. Lower the leveling frame and make its elevation higher than the preset elevation requirement by a preset height. The leveling trolley returns from the rear end to the front end of the leveling frame.

[0010] S4. Lower the leveling frame and make its elevation meet the preset elevation requirement. The leveling trolley throws stones in stages and drives the scraper to move from the front end to the rear end of the leveling frame in stages to level the area where stones have been thrown, completing the bed leveling operation at the current barge position.

[0011] S5. Repeat steps S2 - S4 until the leveling operation of the current length section of the bed in the bed width direction is completed.

[0012] S6. Lift the leveling frame. The leveling barge moves along the bed length direction to the next bed length section to be leveled, and then repeat steps S1 - S5 until the leveling operation of the extra-wide bed with a preset length is completed.

[0013] In some embodiments, in step S3, when the leveling trolley moves towards the front end of the leveling frame, when the leveling trolley moves to a preset distance from the lap zone, raise the leveling frame, and then the leveling trolley continues to move to the front end of the leveling frame.

[0014] In some embodiments, height-adjustable first support components and second support components are respectively installed at the bottom of two side frames parallel to the bed width direction on the leveling frame; the first support component supports on the bed that has been leveled in the bed length direction; the second support component supports on the bed that has been tamped and is to be leveled in the bed length direction.

[0015] In some embodiments, the first support component includes a cushion beam extending along the side frame length direction and a plurality of jacking cylinders buried in the top surface of the cushion beam, and the cushion beam supports on the bed that has been leveled; the second support component includes a plurality of hydraulic legs arranged along the side frame length direction, and the plurality of hydraulic legs support on the bed that has been tamped and is to be leveled; the elevation of the leveling frame is adjusted by adjusting the working strokes of each jacking cylinder and hydraulic leg.

[0016] In some of these embodiments, the first support assembly further includes a plurality of pulling cylinders embedded in the top surface of the cushion beam. The bottom and top of the pulling cylinder are respectively connected to the cushion beam and the leveling frame; the top of the hydraulic support leg is connected to the leveling frame; when the cushion beam is not yet supported on the leveled foundation bed or the leveling barge is displaced, the jacking cylinder contracts into the cushion beam, and the pulling cylinder contracts to a preset minimum stroke so that the cushion beam is pressed against the leveling frame; after the cushion beam is supported on the leveled foundation bed, the pulling cylinder is depressurized, and the jacking cylinder extends to jack up the leveling frame.

[0017] In some of these embodiments, in step S2, the preset width of the overlapping area is 4 m.

[0018] In some of these embodiments, in step S3, the elevation of the leveling frame after being lowered is 10 cm higher than the preset elevation requirement.

[0019] In some of these embodiments, in step S3, when the leveling trolley moves to at least 1 m away from the overlapping area, the leveling frame is raised.

[0020] Based on the above technical solutions, the method for ultra-wide foundation bed leveling operation based on a frame-type leveling machine in the embodiments of the present invention can solve the current problems in ultra-wide foundation bed leveling operation, and avoid problems such as huge costs for the transformation of the leveling barge, high manufacturing difficulty of the leveling frame, large deformation, and poor elevation accuracy caused by using a leveling frame with a larger span. It can better achieve the ultra-wide foundation bed leveling operation and ensure its leveling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0022] Figure 1 is a flowchart of the method for ultra-wide foundation bed leveling operation based on a frame-type leveling machine of the present invention;

[0023] Figure 2 is a schematic diagram of the overlapping area in step S2 of the present invention;

[0024] Figure 3 is a schematic diagram of the leveling frame equipped with the first support assembly and the second support assembly of the present invention;

[0025] Figure 4 is a schematic diagram of the first support assembly in the present invention;

[0026] Figure 5 is a side view of the leveling frame after being lowered in the present invention.

[0027] In the figure: 10, leveling frame; 11, side frame; 20, cushion beam; 21, wing beam; 30, jacking oil cylinder; 40, pulling and closing oil cylinder; 50, hydraulic outrigger; 60, leveling trolley; 61, silo; 62, scraper; 70, leveling barge. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "upper", "lower", "top", "bottom", "inner", "outer", "left", "right", "front", "rear", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0030] The terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] Referring to Figures 1 - 5 As shown, the present invention provides an ultra-wide bed leveling operation method based on a frame-type leveling machine, and the method includes the following steps:

[0033] S1. The leveling barge 70 reaches the first barge position at one end of the length section of the foundation bed to be leveled in the width direction of the foundation bed, and this end in the width direction of the foundation bed is called the starting end of the foundation bed width; lower the leveling frame 10 to the preset position and achieve bottom seating through the supporting device at its bottom, level the leveling frame 10 and make its elevation meet the preset elevation requirements; further, the leveling trolley 60 can travel along the leveling frame 10 once to eliminate the instantaneous settlement of the supporting device at the bottom of the leveling frame 10, and then level the leveling frame 10 again and make its elevation meet the preset elevation requirements; the end of the leveling frame 10 close to the starting end of the foundation bed width is called the front end of the leveling frame 10.

[0034] Place the leveling trolley 60 at the front end of the leveling frame 10, and throw the stone materials in the hopper 61 onto the foundation bed to be leveled. The particle size of the stone materials is 5 cm to 8 cm, and the volume of the thrown stone materials meets the requirements for a preset leveling stroke. Then, the leveling trolley 60 drives the scraper 62 to move along the leveling frame 10 to its rear end for a whole leveling stroke to level the area where the stones have been thrown, completing the foundation bed leveling operation for one whole leveling stroke. It can be understood that when the scraper 62 is scraping, it will scrape the excess stone materials to the side away from the starting end of the foundation bed width; according to this process, the leveling trolley 60 throws stones in stages and drives the scraper 62 to move from the front end to the rear end of the leveling frame 10 in stages to level the area where the stones have been thrown until the foundation bed leveling operation for the first barge position is completed; it can be understood that the range of the foundation bed that the leveling trolley 60 can pass through when walking from the front end to the rear end of the leveling frame 10 at each barge position is the range that can be leveled.

[0035] S2. Lift the leveling frame 10, and the leveling barge 70 moves along the width direction of the foundation bed to the next barge position, and make a preset-width overlapping area be formed between the range that can be leveled corresponding to this barge position and the foundation bed that has been leveled in the previous barge position; specifically, GPS devices are provided at both the front and rear ends of the leveling barge 70, and the two sets of GPS devices and the ship positioning software (such as the Beidou positioning system) are used to position the leveling barge 70 to ensure that the range that can be leveled of the moved leveling barge 70 forms a preset-width overlapping area with the previous barge position.

[0036] Further explanation, the leveling frame 10 needs to be lifted before the leveling barge 70 moves to the next barge position, and the purpose is to avoid disturbing the leveled foundation bed when the leveling frame 10 moves with the leveling barge 70 and affecting the leveling accuracy of the leveled foundation bed; further, since the leveling is carried out from the starting end of the foundation bed width to the other end, after the last leveling stroke in the previous barge position, there may be a situation of local accumulation of surplus materials or local insufficiency of the foundation bed at the finally leveled foundation bed away from the starting end of the foundation bed width due to different stockpiles of stone materials in each hopper 61. Therefore, an overlapping area is set to re-level the overlapping area during the foundation bed leveling operation of the next barge position to solve the problems of possible local accumulation of surplus materials or local insufficiency of the foundation bed in the overlapping area.

[0037] S3. Lower the leveling frame 10 and make its elevation higher than the preset elevation by a preset height. The whole platform vehicle 60 returns from the rear end of the leveling frame 10 to the front end, that is, the whole platform vehicle 60 scrapes in vain to eliminate the instantaneous settlement of the bottom support device of the leveling frame 10. It is further explained that when the whole platform vehicle 60 scrapes in vain during the return process, the elevation of the leveling frame 10 is higher than the preset elevation. The purpose is to avoid the situation where the scraper 62 encounters too much resistance when the scraper 62 returns due to excessive accumulation of residual materials.

[0038] S4, lower the leveling frame 10 and put it on the bottom, level the leveling frame 10 and make its elevation meet the preset elevation requirement; at the current ship position, the leveling platform vehicle 60 again throws stones in stages and drives the scraper 62 to move from the front end to the rear end of the leveling frame 10 in stages to level the stone-thrown area. Specifically, the overlapping area is re-leveled first to eliminate the possible accumulation of residual materials or partial insufficiency of the base bed in the overlapping area, and then the base bed leveling of the non-overlapping area within the leveling range of the current ship position is continued until the base bed leveling operation at the current ship position is completed;

[0039] Furthermore, an underwater camera (not shown) is installed on the side of the scraper 62 away from the base bed leveling direction to observe whether the leveled base bed is disturbed during the base bed leveling operation and stone bulges occur; if this happens, the leveling frame 10 is lifted, the leveling platform vehicle 60 returns to the stone bulge, the leveling frame 10 is lowered and its elevation meets the preset elevation requirement, and the stone bulge is leveled again.

[0040] S5. Repeat steps S2 to S4 until the leveling operation of the current length section of the base bed in the width direction of the base bed is completed; further, the total leveling width of the base bed is greater than the required width of the base bed; after the leveling ship 70 completes the base bed leveling operation at the last ship position, the remaining material is scraped to the side away from the starting end of the base bed width, solving the remaining material problem while ensuring that the base bed stone is full.

[0041] S6. Lift the leveling frame 10, and move the leveling boat 70 along the length direction of the bed to the next length section of the bed to be leveled. Perform steps S1 to S5 again until the leveling operation of the ultra-wide bed of the preset length is completed.

[0042] The above-mentioned schematic embodiment realizes the leveling operation of the ultra-wide base bed and better ensures the accuracy of the ultra-wide base bed leveling operation by adopting technical means such as overlapping multiple leveling ship positions in the width direction of the base bed, scraping the leveling platform vehicle 60 to eliminate instantaneous settlement, and re-leveling the overlapping area. It solves the current problem of ultra-wide base bed leveling operation and avoids the use of a larger span of the leveling frame 10, which leads to huge costs for the modification of the leveling ship 70, high difficulty in manufacturing the leveling frame 10, large deformation and poor elevation accuracy.

[0043] refer to Figure 2As shown, in some embodiments, in step S3, when the leveling trolley 60 moves towards the front end of the leveling frame 10, when the leveling trolley 60 moves to a preset distance from the overlapping area, the leveling frame 10 is lifted, and then the leveling trolley 60 continues to move to the front end of the leveling frame 10; thus ensuring that the leveling trolley 60 will not disturb the leveled bedrock materials during the return empty scraping, and also ensuring that the scraper 62 will not scrape the surplus materials that may be accumulated in the overlapping area onto the previously leveled bedrock in front and cause damage to it.

[0044] Reference Figure 3 、 Figure 5 As shown, in some embodiments, height-adjustable first support components and second support components are respectively installed at the bottoms of two side frames 11 parallel to the width direction of the bedrock on the leveling frame 10. The first support component and the second support component are the support devices at the bottom of the leveling frame; the first support component supports on the leveled bedrock in the length direction of the bedrock, and the second support component supports on the tamped and to-be-leveled bedrock in the length direction of the bedrock, that is, the leveling frame 10 is supported in a liftable manner through the first support component and the second support component; thus, by adjusting the heights of the first support component and the second support component, the leveling of the leveling frame 10 is realized and its elevation meets the preset elevation requirements.

[0045] Reference Figure 3 、 Figure 4 、 Figure 5 As shown, in some embodiments, the first support component includes a cushion beam 20 extending along the length direction of the side frame 11, and a plurality of jacking cylinders 30 buried in the top surface of the cushion beam 20. The plurality of jacking cylinders 30 are arranged at intervals along the length direction of the cushion beam 20; during the leveling operation of the extra-wide bedrock, the cushion beam 20 supports on the leveled bedrock in the length direction of the bedrock, and the edge of the cushion beam 20 is aligned with the edge of the leveled bedrock. The second support component includes a plurality of hydraulic legs 50 arranged at intervals along the length direction of the side frame 11. During the leveling operation of the extra-wide bedrock, the plurality of hydraulic legs 50 support on the tamped and to-be-leveled bedrock in the length direction of the bedrock; thus, by adjusting the working strokes of each jacking cylinder 30 and the hydraulic legs 50, the leveling of the leveling frame 10 is realized and its elevation meets the preset elevation requirements.

[0046] It should be noted that in steps S1 and S3, the whole platform vehicle 60 travels to eliminate the instantaneous settlement of the bottom support device of the leveling frame 10, that is, to eliminate the instantaneous settlement of the cushion beam 20 and the hydraulic outrigger 50. On this basis, the subsequent adjustment of the elevation of the leveling frame 10 is carried out, which can improve the elevation accuracy of the leveling frame 10 during the bed leveling operation, and further improve the bed leveling accuracy. In addition, compared with the current method of using multiple outriggers for point support of the leveling frame 10, the setting of the cushion beam 20 in this embodiment significantly increases the contact area between the first support component and the leveled bed, greatly reduces the load of the first support component on the leveled bed, and further significantly reduces the settlement amount of the first support component, that is, significantly reduces the settlement amount of the leveled bed in contact with the cushion beam 20 and makes its settlement uniform, ensuring that the top surface elevation and leveling accuracy of the leveled bed are not affected by the subsequent bed leveling operation and still meet the engineering quality requirements.

[0047] Further explanation, on both sides of the lower part of the cushion beam 20 in the width direction, wing beams 21 are protruded. The bottom surface of the wing beam 21 is coplanar with the bottom surface of the cushion beam 20, and the top surface of the wing beam 21 is inclined upward towards the cushion beam 20. Thus, through the setting of the wing beam 21, the overall structural strength of the cushion beam 20 is enhanced, and the contact area between the cushion beam 20 and the leveled bed is increased, further reducing the settlement amount of the cushion beam 20, that is, reducing the settlement amount of the leveled bed in contact with the cushion beam 20, better ensuring that the top surface elevation and leveling accuracy of the leveled bed meet the engineering quality requirements, and also minimizing the subsequent settlement amount of the cushion beam 20 during the bed leveling operation, further improving the elevation accuracy of the leveling frame 10 during the bed leveling operation, and thus improving the bed leveling accuracy.

[0048] Reference Figure 3 、 Figure 4 As shown, in some embodiments, the first support component further includes a plurality of pulling cylinders 40 buried in the top surface of the cushion beam 20, and the plurality of pulling cylinders 40 are arranged at intervals along the length direction of the cushion beam 20. The bottom of the pulling cylinder 40 is connected to the cushion beam 20, and the top of the pulling cylinder 40 is connected to the leveling frame 10, while the bottom of the jacking cylinder 30 is connected to the cushion beam 20, and the top of the jacking cylinder 30 is not fixedly connected to the leveling frame 10. Thus, through the setting of the pulling cylinder 40, the connection between the first support component and the leveling frame 10 is realized. The top of the hydraulic outrigger 50 is connected to the leveling frame 10, realizing the connection between the second support component and the leveling frame 10.

[0049] Further explanation: When the cushion beam 20 has not yet been supported on the leveled foundation bed or when the leveling barge 70 is displaced, the jacking cylinder 30 retracts into the cushion beam 20, that is, the top surface of the jacking cylinder 30 does not contact the leveling frame 10, and the pulling cylinder 40 retracts to the preset minimum stroke so that the top surface of the cushion beam 20 is pressed against the bottom surface of the leveling frame 10; thereby ensuring that there is no relative movement between the cushion beam 20 and the leveling frame 10 when the leveling frame 10 is displaced, and further ensuring the towing safety of the cushion beam 20. After the cushion beam 20 is supported on the leveled foundation bed, the pulling cylinder 40 is depressurized, and the jacking cylinder 30 extends to jack up the leveling frame 10; when the jacking cylinder 30 extends, the pulling cylinder 40 will extend accordingly; to ensure the safe and reliable performance of the pulling cylinder 40, it is necessary to ensure that when the jacking cylinder 30 extends to the preset maximum jacking stroke, the pulling cylinder 40 does not extend to the preset maximum stroke.

[0050] Reference Figure 2 As shown, in some embodiments, in step S2, the preset width of the overlapping area is 4 m, so as to take into account the requirements of the foundation bed leveling quality and the foundation bed leveling construction efficiency at the connection of the front and rear ship positions in the width direction of the foundation bed at the same time.

[0051] In some embodiments, in step S3, the elevation of the leveling frame 10 after being lowered is 10 cm higher than the preset elevation requirement; while ensuring the smooth empty scraping return of the leveling trolley 60, it can better eliminate the instantaneous settlement of the bottom support device of the leveling frame 10. In some embodiments, in step S3, when the leveling trolley 60 moves towards the front end of the leveling frame 10, the empty scraping displacement is calculated in advance. When the leveling trolley 60 moves to at least 1 m away from the overlapping area, the leveling frame 10 is raised; thereby further ensuring that the empty scraping of the leveling trolley 60 during the return journey will not affect the leveled foundation bed and its leveling accuracy.

[0052] In summary, the method for leveling an ultra-wide foundation bed based on a frame-type leveling machine of the present invention can solve the current problems in leveling an ultra-wide foundation bed, avoid problems such as huge costs for the transformation of the leveling barge 70, high manufacturing difficulty of the leveling frame 10, large deformation and poor elevation accuracy caused by using a leveling frame 10 with a larger span, and can better realize the leveling operation of the ultra-wide foundation bed and ensure its leveling accuracy.

[0053] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and the key points of each embodiment are the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements on some technical features without departing from the spirit of the technical solutions of the present invention, and they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. An ultra-wide bed leveling operation method based on a frame-type leveling machine, characterized in that, It includes the following steps: S1. The leveling barge reaches the first barge position at one end of the bed width direction of the bed length section to be leveled, lowers the leveling frame and bottoms out through the supporting device at its bottom, levels the leveling frame and makes its elevation meet the preset elevation requirement; the leveling trolley walks along the leveling frame once to eliminate the instantaneous settlement of the supporting device at the bottom of the leveling frame, then levels the leveling frame again and makes its elevation meet the preset elevation requirement; the leveling trolley throws stones in stages and drives the scraper to move from the front end to the rear end of the leveling frame in stages to level the area where stones have been thrown, completing the bed leveling operation under the first barge position; S2. Lift the leveling frame, and the leveling barge moves along the bed width direction to the next barge position, and makes a lap zone with a preset width be formed between the levelable range corresponding to this barge position and the bed leveled well under the previous barge position; S3. Lower the leveling frame and make its elevation be higher than the preset elevation requirement by a preset height, and the leveling trolley returns from the rear end to the front end of the leveling frame; S4. Lower the leveling frame and bottom out, level the leveling frame and make its elevation meet the preset elevation requirement, the leveling trolley throws stones in stages and drives the scraper to move from the front end to the rear end of the leveling frame in stages to level the area where stones have been thrown, completing the bed leveling operation under the current barge position; S5. Repeat steps S2 to S4 until the leveling operation of the current bed length section in the bed width direction is completed; S6. Lift the leveling frame, and the leveling barge moves along the bed length direction to the next bed length section to be leveled, and execute steps S1 to S5 again until the leveling operation of the extra-wide bed with a preset length is completed.

2. The method for ultra-wide bed leveling operation based on a frame-type leveling machine according to claim 1, characterized in that, In step S3, when the leveling trolley moves towards the front end of the leveling frame, when the leveling trolley moves to a preset distance from the lap zone, raise the leveling frame, and the leveling trolley then continues to move to the front end of the leveling frame.

3. The ultra-wide bed leveling operation method based on a frame type leveling machine according to claim 1 or 2, characterized in that, Height-adjustable first support components and second support components are respectively installed at the bottom parts of the two side frames parallel to the bed width direction on the leveling frame, and the first support components and the second support components are the supporting devices at the bottom of the leveling frame; the first support component supports on the bed leveled well in the bed length direction; the second support component supports on the bed tamped and to be leveled in the bed length direction.

4. The ultra-wide bed leveling operation method based on a frame-type leveling machine according to claim 3, characterized in that, The first support component includes a cushion beam extending along the side frame length direction and a plurality of jacking oil cylinders buried in the top surface of the cushion beam, and the cushion beam supports on the bed leveled well; the second support component includes a plurality of hydraulic legs arranged along the side frame length direction, and the plurality of hydraulic legs support on the bed tamped and to be leveled; the elevation of the leveling frame is adjusted by adjusting the working strokes of the respective jacking oil cylinders and hydraulic legs.

5. The method for ultra-wide bed leveling operation based on a frame-type leveling machine according to claim 4, characterized in that, The first support assembly further includes a plurality of pulling cylinders embedded in the top surface of the cushion beam, the bottom and top of the pulling cylinders are respectively connected to the cushion beam and the leveling frame; the top of the hydraulic leg is connected to the leveling frame; when the cushion beam is not yet supported on the leveled foundation bed or the leveling barge is displaced, the jacking cylinder contracts into the cushion beam, and the pulling cylinder contracts to a preset minimum stroke so that the cushion beam is pressed against the leveling frame; after the cushion beam is supported on the leveled foundation bed, the pulling cylinder is depressurized, and the jacking cylinder extends to jack up the leveling frame.

6. The ultra-wide bed leveling operation method based on a frame type leveling machine according to claim 1, characterized in that, In step S2, the preset width of the overlapping area is 4 m.

7. The ultra-wide bed leveling operation method based on a frame-type leveling machine according to claim 1, characterized in that In step S3, the elevation of the leveling frame after being lowered is 10 cm higher than the preset elevation requirement.

8. The ultra-wide bed leveling operation method based on a frame-type leveling machine according to claim 2, characterized in that, In step S3, when the leveling trolley moves to at least 1 m away from the overlapping area, raise the leveling frame.

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