Elevation control device and use method thereof in frozen soil section roadbed construction

Abstract

The invention discloses an elevation control device and a using method thereof in frozen soil section roadbed construction, and belongs to the technical field of road construction, the elevation control device comprises an elevation column with a height mark, the upper section of the elevation column is sleeved with a soil type carrying sleeve, a locking piece is arranged between the soil type carrying sleeve and the elevation column, an adapter ring A, an adapter ring B and a hollow ring are rotationally installed in the soil type carrying sleeve, and the adapter ring A and the adapter ring B are rotationally installed in the hollow ring. And a steel wire connecting block A, a steel wire connecting block B and a steel wire connecting block C are fixedly mounted on the outer surfaces of the adapter ring A, the adapter ring B and the hollow ring correspondingly, and L-shaped threading holes are formed in the ends, away from the soil type carrying sleeve, of the steel wire connecting block A, the steel wire connecting block B and the steel wire connecting block C in a penetrating mode. Through multi-dimensional accurate monitoring of the cross section of the road, a more perfect construction quality management and control system is formed, the overall construction quality of the road is effectively improved, and it is ensured that a project meets the high-standard construction requirement.

Description

Technical Field

[0001] The invention belongs to the technical field of road construction, and in particular relates to an elevation control device and a method of using the device in frozen soil section roadbed construction. Background Art

[0002] During the construction of the frozen soil section of the Sichuan-Tibet railway in the high-altitude and cold regions, a layered backfilling and compaction paving process is adopted after the foundation pit is excavated. During this process, in order to accurately control the thickness of each layer of backfill, control piles need to be installed on both sides of the road as a reference for the project quality.

[0003] According to patent searches, in related fields, the control piles involved in the authorized patents such as publication numbers CN218712041U, CN216947765U and CN220685714U have their own structural characteristics, but they all have certain limitations. The structure of the wire rope connection end is relatively fixed. When the elevation column is implanted in the soil, it is difficult to flexibly adjust the direction alone. The construction personnel need to rely on extremely high operating precision to ensure that the direction of the wire rope connection end meets the requirements. This process is difficult to operate, time-consuming and labor-intensive, and the accuracy of subsequent elevation control will be reduced if not carefully.

[0004] At the same time, during the road laying, it is not convenient to connect the wire rope horizontally for detection. When the elevation reference of the middle position of the road is required, due to the technical defects of the existing elevation column, the construction personnel can only make long-distance judgments with the naked eye, which inevitably introduces large errors and is difficult to meet the stringent requirements of modern engineering for high precision. In the long run, it will have a negative impact on the flatness, linearity and overall structural quality of the road, which will increase the probability of rework, delay the construction period and increase the cost. In view of this, an elevation control device and its use method in the construction of frozen soil roadbed are provided to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide an elevation control device and a method for using the device in frozen soil section roadbed construction to solve the problems raised in the above background technology. The specific technical solution is as follows: An elevation control device comprises an elevation column with a height mark, wherein the upper section of the elevation column is sleeved with an earth-type carrier sleeve, a locking piece is arranged between the earth-type carrier sleeve and the elevation column, an adapter ring A, an adapter ring B and a hollow ring are rotatably installed in the earth-type carrier sleeve, the adapter ring A, the adapter ring B and the hollow ring are arranged in sequence from top to bottom, and the outer surfaces of the adapter ring A, the adapter ring B and the hollow ring are respectively fixedly installed with a wire connection block A, a wire connection block B and a wire connection block C, the wire connection block A, the wire connection block B and the wire connection block C are respectively used to connect the wire ropes between two elevation columns.

[0006] In the above technical solution, the ends of the steel wire connection blocks A, B and C away from the earth-type carrier sleeve are all penetrated with L-shaped threading holes, the three L-shaped threading holes are all located on the same circumferential level, and the sides of the steel wire connection blocks A, B and C away from the earth-type carrier sleeve are all threaded with clamping bolts, and the clamping bolts pass through the corresponding L-shaped threading holes.

[0007] In the above technical solution, the steel wire connection block A and the steel wire connection block B are both Z-shaped, and the length of the steel wire connection block C is less than half of the length of the steel wire connection block A and the steel wire connection block B.

[0008] In the above technical solution, the earth mold carrier sleeve includes a sleeve, a reading window is opened through the outer surface of the sleeve, and a support ring is fixedly installed on the lower surface of the sleeve, the upper surface of the support ring is fitted with the lower surface of the hollow ring, and a limiting ring is fixedly installed on the outer surface of the upper section of the sleeve, and the lower surface of the limiting ring is fitted with the upper surface of the adapter ring A.

[0009] In the above technical solution, a conical finger is fixedly installed on one side of the wire connecting block C close to the sleeve, and the conical finger and the L-shaped threading hole are in the same circumferential horizontal position.

[0010] In the above technical solution, the locking member includes a locking bolt, which is threaded through the outer surface of the sleeve, located above the limiting ring, and an operating handle is fixedly installed on one end of the locking bolt away from the sleeve.

[0011] In the above technical solution, the inner wall of the sleeve is provided with two ribbed grooves, and the upper outer surface of the elevation column is fixedly mounted with two positioning ribs, and the ribbed grooves are slidably connected with the corresponding positioning ribs.

[0012] In the above technical solution, a fixing plate is fixedly installed on the outer surface of the lower end of the elevation column, and the fixing plate is vertically arranged between the elevation column.

[0013] The present invention also provides a method for using the elevation control device in the construction of a frozen soil section roadbed, the method comprising the steps of: a. During the construction of the frozen soil section, a plurality of the elevation columns are nailed into the ground at intervals of not less than 50 cm along both sides of the planned paved road. After being nailed in, ensure that the lower surface of the fixing plate is in close contact with the ground, and the starting end of the height mark of the elevation column is flush with the ground, thereby providing a stable and accurate reference point for subsequent elevation control.

[0014] b. After the elevation column is installed, the locking bolt is rotated by turning the operating handle to release the fixing constraint on the soil type carrier sleeve. According to the elevation value required for construction, the soil type carrier sleeve is slid up and down on the elevation column. In this process, with the help of the synergy of the reading window and the conical finger, the height position of the L-shaped threading hole can be accurately determined to ensure the accuracy of the elevation adjustment.

[0015] c. After completing the elevation adjustment of the soil type carrier, for each elevation column, flexibly rotate the wire connection block A and the wire connection block B so that their orientation meets the construction requirements. Pass the wire rope through the L-shaped threading holes of the wire connection block A and the wire connection block B in turn, and evenly apply force to tighten and straighten the wire rope. Subsequently, use the tightening bolt to firmly fix the wire rope in the L-shaped threading hole, thus completing the wire pulling operation between the two adjacent elevation columns, providing a standard reference line for the road paving and compaction process.

[0016] d. During the construction of layered road paving, the soil carrier sleeve can be released in time according to the elevation requirements of each layer, and the elevation can be adjusted again to meet the construction requirements of different layered paving. After each layer of paving is completed, a steel wire rope is connected between two steel wire connecting blocks C that are diagonally opposite or front and back, and the steel wire rope is used as a reference to detect the elevation of the middle position of the paved road. When the road surface fits the steel wire rope, it indicates that the road surface paving height meets the standard; if the road surface is lower than the steel wire rope, it means that the paving height is insufficient, and construction materials need to be supplemented and compacted in time; if the steel wire rope is abnormally arched, that is, the middle of the road surface is higher than the two sides, the road surface should be compacted immediately with a roller or tamping equipment to ensure that the road surface is level with the roads on both sides and meet the quality standards of road construction.

[0017] Compared with the prior art, the elevation control device of the present invention and the method of using the same in the construction of frozen soil roadbed have the following beneficial effects: Before actually nailing the pile, the elevation control device described in the present invention does not need to consider the direction of the wire connection block, and the elevation column can be directly nailed into the soil, which reduces the difficulty of operation when installing the elevation column. After nailing, the directions of the wire connection blocks A and B can be adjusted 360° according to the direction in which the wire rope is to be connected, so as to realize the wire pulling operation between the two elevation columns and provide a standard reference line for the road paving and compaction process. At the same time, the method for using the elevation control device described in the present invention in the construction of frozen soil section roadbed can use two diagonally opposite or front-to-back opposite wire connection blocks C61 to connect the wire rope between the two during the layered paving of the road. With this wire rope as a reference, the elevation of the middle position of the paved road is monitored to ensure that the road surface and the roads on both sides are kept level. Compared with the traditional construction monitoring mode that only focuses on the quality control on both sides of the road, this scheme introduces a construction quality detection means for the middle position of the road. Through the multi-dimensional precise monitoring of the road cross section, a more complete construction quality control system is formed, which effectively improves the overall construction quality of the road and ensures that the project meets the high-standard construction requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the soil type carrier structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the soil-type carrier explosion structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the hollow ring of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the present invention under normal use.

[0023] Figure 6 It is a schematic diagram of the use state of the present invention when performing lateral detection of the height of a local road surface.

[0024] Figure 7 It is a schematic diagram of the use status of the present invention when detecting the height and oblique direction of a local road surface.

[0025] Figure 1-Figure 7 Among them: 1. elevation column; 11. fixing plate; 12. positioning rib; 2. soil type carrier sleeve; 21. sleeve; 211. reading window; 212. rib groove; 22. support ring; 23. limit ring; 3. locking piece; 31. locking bolt; 32. operating handle; 4. adapter ring A; 41. wire connection block A; 5. adapter ring B; 51. wire connection block B; 6. hollow ring; 61. wire connection block C; 62. tapered finger; 7. L-shaped threading hole; 71. tightening bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In this embodiment, the front, rear, left, right, top and bottom are represented by Figure 5 Describes the datum surface. Figure 1-Figure 7 , the present invention provides a technical solution: A height control device comprises a height column 1 with a height mark, an upper section of the height column 1 is sleeved with a soil type carrier sleeve 2, a locking member 3 is arranged between the soil type carrier sleeve 2 and the height column 1, an adapter ring A4, an adapter ring B5 and a hollow ring 6 are rotatably installed in the soil type carrier sleeve 2, the adapter ring A4, the adapter ring B5 and the hollow ring 6 are arranged in sequence from top to bottom, and the outer surfaces of the adapter ring A4, the adapter ring B5 and the hollow ring 6 are respectively fixedly installed with a wire connection block A41, a wire connection block B51 and a wire connection block C61, the wire connection block A4 1. The steel wire connection block B51 and the steel wire connection block C61 are respectively used to connect the steel wire ropes between the two elevation columns 1. The ends of the steel wire connection blocks A41, B51 and C61 away from the earth-type carrier sleeve 2 are penetrated with L-shaped threading holes 7. The three L-shaped threading holes 7 are all located at the same circumferential level. The sides of the steel wire connection blocks A41, B51 and C61 away from the earth-type carrier sleeve 2 are all screwed with tightening bolts 71, and the tightening bolts 71 penetrate the corresponding L-shaped threading holes 7. Combination Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, in actual use, multiple elevation columns 1 are used together. When in use, the elevation columns 1 are nailed into the ground at equal distances on both sides of the road to be constructed. Then, the locking piece 3 is released to fix the soil type carrier sleeve 2. According to the height of the desired elevation, the position of the soil type carrier sleeve 2 is adjusted by sliding up and down, so that the steel wire connecting block A41, the steel wire connecting block B51 and the steel wire connecting block C61 are located at the circumferential horizontal position of the desired elevation. Then, the locking piece 3 is used to fix the soil type carrier sleeve 2 (this operation needs to be performed on each elevation column 1 to ensure that the elevation positions of multiple elevation columns 1 are consistent), and then, the soil type carrier sleeve 2 is adjusted by rotating. The positions of the wire connecting blocks A41 and B51 are arranged so that they face the direction of the elevation column 1 on the adjacent side. Then, the wire rope is connected between the wire connecting block B51 and the wire connecting block A41 on the elevation column 1 at another adjacent position through the L-shaped threading hole 7. Then, the wire rope is straightened and tightened, and the two ends of the wire rope are respectively fixed in the corresponding L-shaped threading holes 7 using the tightening bolts 71. According to the same installation method, the wire rope is installed between two adjacent elevation columns 1 in turn. Multiple wire ropes are laid on both sides of the road to form a standard reference line for the paving and compaction processes.

[0028] During the construction of layered road paving, each layer of road is paved. Figure 6 and Figure 7 As shown, another steel wire rope for detection can be connected between the steel wire connecting blocks C61 on the front and rear elevation columns 1 or the steel wire connecting blocks C61 on the diagonally opposite elevation columns 1. The steel wire rope can be set up across the road, and the state between the road surface and the steel wire rope can be used to determine whether the middle and both sides of the paved road surface are in a level state, thereby facilitating timely filling or flattening to avoid affecting subsequent construction.

[0029] Compared with the prior art, the present invention reduces the difficulty of operation when nailing the elevation column 1. After nailing, the directions of the wire connecting blocks A41 and B51 can be adjusted 360° according to the direction in which the wire rope is to be connected, so as to realize the wire pulling operation between the two elevation columns 1, and the operation is simpler and more convenient. In addition, compared with the traditional construction monitoring mode which only focuses on quality control on both sides of the road, this scheme introduces a comprehensive construction quality monitoring method for the middle position of the road. Through the precise monitoring of the multi-dimensional cross-section of the road, a more complete construction quality control system is formed, which effectively improves the overall construction quality of the road and ensures that the project meets the high-standard construction requirements.

[0030] Combination Figure 1 and Figure 3As shown, the steel wire connection block A41 and the steel wire connection block B51 are both Z-shaped, and the length of the steel wire connection block C61 is less than half of the length of the steel wire connection block A41 and the steel wire connection block B51. When the steel wire connection block C61 with this length is rotated to adjust the position, it can pass smoothly under the steel wire connection block A41 and the steel wire connection block B51 to ensure the normal adjustment function.

[0031] Combination Figure 2 and Figure 3 As shown, the soil type carrier sleeve 2 includes a sleeve 21, and a reading window 211 is opened through the outer surface of the sleeve 21, and the position of the reading window 211 corresponds to the height mark position on the elevation column 1, and a support ring 22 is fixedly installed on the lower surface of the sleeve 21, and the upper surface of the support ring 22 is in contact with the lower surface of the hollow ring 6, and a limit ring 23 is fixedly installed on the outer surface of the upper section of the sleeve 21, and the lower surface of the limit ring 23 is in contact with the upper surface of the adapter ring A4; During the production process of the earth-type carrier sleeve 2, the support ring 22 is first welded to the bottom of the sleeve 21, and then the hollow ring 6 with the steel wire connecting block C61, the adapter ring B5 with the steel wire connecting block B51, and the adapter ring A4 with the steel wire connecting block A41 are sequentially sleeved on the outer surface of the sleeve 21. Then, the limit ring 23 is sleeved on the outer surface of the sleeve 21, and after the sleeve 21 is slightly in contact with the adapter ring A4, the limit ring 23 and the sleeve 21 are welded and fixed.

[0032] In order to facilitate accurate reading of the elevation, Figure 1 , Figure 2 and Figure 4 As shown, a conical finger 62 is fixedly installed on one side of the wire connection block C61 close to the sleeve 21, and the conical finger 62 and the L-shaped threading hole 7 are at the same circumferential horizontal position; When the elevation position needs to be adjusted, the operator changes the overall elevation by adjusting the sleeve 21 up and down. In this process, by rotating the hollow ring 6, the conical finger 62 can be flexibly and accurately adjusted to the position of the reading window 211 of the sleeve 21. Due to the circumferential horizontal position relationship between the conical finger 62 and the L-shaped threading hole 7, the operator only needs to observe the position indicated by the conical finger 62 through the reading window 211 to quickly and accurately determine the position of the L-shaped threading hole 7. This design not only simplifies the reading steps in the elevation adjustment process, but also greatly improves the accuracy and reliability of elevation measurement, providing an efficient and accurate operation method for elevation control work in the fields of road construction and construction engineering.

[0033] Combination Figure 2 and Figure 3As shown, the locking member 3 includes a locking bolt 31, which is threadedly installed on the outer surface of the sleeve 21, and the locking bolt 31 is located above the limiting ring 23, and an operating handle 32 is fixedly installed on the end of the locking bolt 31 away from the sleeve 21. By rotating the operating handle 32, the locking bolt 31 can be driven to rotate, so that it fits with the outer surface of the elevation column 1 to maintain the fixation between the sleeve 21 and the elevation column 1. Rotating the operating handle 32 in the opposite direction can separate the locking bolt 31 from the outer surface of the elevation column 1, thereby releasing the fixation of the sleeve 21.

[0034] To prevent the sleeve 21 from rotating, two grooves 212 are opened on the inner wall of the sleeve 21, and two positioning ribs 12 are fixedly installed on the outer surface of the upper end of the elevation column 1. The grooves 212 are slidably connected with the corresponding positioning ribs 12 to ensure that the sleeve 21 can slide up and down, thereby ensuring that the position of the reading window 211 of the sleeve 21 always corresponds to the height marking position of the elevation column 1.

[0035] Finally, to ensure that after the elevation column 1 is nailed into the ground, the starting end of the height mark on its outer surface can be flush with the ground, a fixing plate 11 is fixedly installed on the outer surface of the lower end of the elevation column 1, and the fixing plate 11 is vertically arranged between the elevation column 1. When the elevation column 1 is nailed into the ground and the lower surface of the fixing plate 11 is in contact with the ground, the starting end of the height surface of the elevation column 1 is flush with the ground.

[0036] The present invention also provides a method for using the elevation control device in the construction of a frozen soil section roadbed, the method comprising the steps of: a. During the construction of the frozen soil section, multiple elevation columns 1 are nailed into the ground at intervals of not less than 50 cm along both sides of the planned paved road. After being nailed in, ensure that the lower surface of the fixing plate 11 is in close contact with the ground, and the starting end of the height mark of the elevation column 1 is flush with the ground, thereby providing a stable and accurate reference point for subsequent elevation control.

[0037] b. After the elevation column is installed, the locking bolt 31 is driven to rotate by turning the operating handle 32 to release the fixing constraint on the soil type carrier 2. According to the elevation value required for the construction, the soil type carrier 2 is adjusted to slide up and down on the elevation column 1, and then the locking bolt 31 is tightened against the outer surface of the elevation column 1 again. In this process, with the help of the synergistic effect of the reading window 211 and the tapered finger 62, the height position of the L-shaped threading hole 7 can be accurately determined to ensure the accuracy of the elevation adjustment.

[0038] c. After completing the elevation adjustment of the soil type carrier 2, for each elevation column 1, flexibly rotate the wire connection block A41 and the wire connection block B51 so that their orientation meets the construction requirements. Pass the wire rope through the L-shaped threading holes 7 of the wire connection block A41 and the wire connection block B51 in turn, and evenly apply force to tighten and straighten the wire rope. Subsequently, use the tightening bolt 71 to firmly fix the wire rope in the L-shaped threading hole 7, thus completing the wire pulling operation between two adjacent elevation columns 1, providing a standard reference line for the road paving and compaction process.

[0039] d. During the construction of layered road paving, the soil carrier sleeve 2 can be released in time according to the elevation requirements of each layer, and the elevation can be adjusted again to meet the construction requirements of different layered paving. After each layer of paving is completed, a steel wire rope is connected between two steel wire connection blocks C61 that are diagonally opposite or front and back, and the steel wire rope is used as a reference to detect the elevation of the middle position of the paved road. When the road surface fits the steel wire rope, it indicates that the road surface paving height meets the standard; if the road surface is lower than the steel wire rope, it means that the paving height is insufficient, and construction materials need to be supplemented and compacted in time; if the steel wire rope is abnormally arched, that is, the middle of the road surface is higher than the two sides, the road surface should be compacted immediately with a roller or tamping equipment to ensure that the road surface is level with the roads on both sides and meet the quality standards of road construction.

Claims

1. An elevation control device, characterized in that: The invention comprises an elevation column (1) with a height mark, wherein an earth-type carrier sleeve (2) is sleeved on the upper section of the elevation column (1), a locking member (3) is arranged between the earth-type carrier sleeve (2) and the elevation column (1), and an adapter ring A (4), an adapter ring B (5) and a hollow ring (6) are rotatably installed in the earth-type carrier sleeve (2), wherein the adapter ring A (4), the adapter ring B (5) and the hollow ring (6) are arranged in sequence from top to bottom, and a steel wire connection block A (41), a steel wire connection block B (51) and a steel wire connection block C (61) are respectively fixedly installed on the outer surfaces of the adapter ring A (4), the adapter ring B (5) and the hollow ring (6), wherein the steel wire connection block A (41), the steel wire connection block B (51) and the steel wire connection block C (61) are respectively used to connect steel wire ropes between two elevation columns (1).

2. The elevation control device according to claim 1, characterized in that: The ends of the steel wire connection block A (41), the steel wire connection block B (51) and the steel wire connection block C (61) away from the earth-type carrier sleeve (2) are all penetrated with L-shaped threading holes (7), the three L-shaped threading holes (7) are all located at the same circumferential level, and the sides of the steel wire connection block A (41), the steel wire connection block B (51) and the steel wire connection block C (61) away from the earth-type carrier sleeve (2) are all screwed with a clamping bolt (71), and the clamping bolt (71) penetrates the corresponding L-shaped threading hole (7).

3. The elevation control device according to claim 2, characterized in that: The steel wire connection block A (41) and the steel wire connection block B (51) are both Z-shaped, and the length of the steel wire connection block C (61) is less than half the length of the steel wire connection block A (41) and the steel wire connection block B (51).

4. The elevation control device according to claim 3, characterized in that: The earth-type carrier sleeve (2) comprises a sleeve (21), the outer surface of the sleeve (21) is provided with a reading window (211), and a support ring (22) is fixedly mounted on the lower surface of the sleeve (21), the upper surface of the support ring (22) is in contact with the lower surface of the hollow ring (6), and a limit ring (23) is fixedly mounted on the outer surface of the upper section of the sleeve (21), and the lower surface of the limit ring (23) is in contact with the upper surface of the adapter ring A (4).

5. The elevation control device according to claim 4, characterized in that: A conical finger (62) is fixedly mounted on one side of the steel wire connection block C (61) close to the sleeve (21), and the conical finger (62) and the L-shaped threading hole (7) are located at the same circumferential horizontal position.

6. The elevation control device according to claim 5, characterized in that: The locking member (3) comprises a locking bolt (31), the locking bolt (31) being threadedly mounted on the outer surface of the sleeve (21), the locking bolt (31) being located above the limiting ring (23), and an operating handle (32) being fixedly mounted on one end of the locking bolt (31) away from the sleeve (21).

7. The elevation control device according to claim 6, characterized in that: The inner wall of the sleeve (21) is provided with two corrugated grooves (212), and the upper outer surface of the elevation column (1) is fixedly mounted with two positioning corrugations (12), wherein the corrugated grooves (212) are slidably connected to the corresponding positioning corrugations (12).

8. The elevation control device according to claim 7, characterized in that: A fixing plate (11) is fixedly mounted on the outer surface of the lower end of the elevation column (1), and the fixing plate (11) is vertically arranged between the elevation column (1).

9. A method for using an elevation control device in frozen soil section roadbed construction, based on the elevation control device described in claim 8, characterized in that: The method comprises the steps of: a. During the construction of the frozen soil section of the roadbed, along both sides of the scheduled paved road, at intervals of not less than 50 cm, a plurality of said elevation columns (1) are nailed into the ground; b. After the elevation column is installed, the locking bolt (31) is driven to rotate by turning the operating handle (32) to release the fixing constraint on the soil type carrier sleeve (2). After the soil type carrier sleeve (2) is slid up and down on the elevation column (1) according to the elevation value required for construction, the locking bolt (31) is tightened again against the outer surface of the elevation column (1); c. After the elevation adjustment of the soil type carrier sleeve (2) is completed, for each elevation column (1), the steel wire connection block A (41) and the steel wire connection block B (51) are flexibly rotated to make their orientations meet the construction requirements, and the steel wire rope is sequentially passed through the L-shaped threading holes (7) of the steel wire connection block A (41) and the steel wire connection block B (51), and force is evenly applied to tighten and straighten the steel wire rope. Subsequently, the steel wire rope in the L-shaped threading hole (7) is firmly fixed by using the tightening bolt (71), thereby completing the wire pulling operation between two adjacent elevation columns (1), providing a standard reference line for the road paving and compaction process; d. During the construction of the layered road paving, the soil carrier sleeve (2) can be released in a timely manner according to the elevation requirements of each layer, and the elevation can be adjusted again to meet the construction requirements of different layered paving. After the paving operation of each layer is completed, a steel wire rope is connected between two steel wire connecting blocks C (61) that are diagonally opposite or front and back, and the steel wire rope is used as a reference to detect the elevation of the middle position of the paved road.

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