Dry soil layer backfilling equipment for widened and transformed road foundation and construction method

Abstract

The invention discloses dry soil layer backfilling equipment for widening and transforming a road foundation and a construction method.The dry soil layer backfilling equipment for widening and transforming the road foundation comprises a movable base, a material storage shell is fixedly installed at the top of the movable base, a motor is fixedly installed at the top of the material storage shell, and an output shaft of the motor penetrates through the material storage shell; a stirring rod is fixedly mounted at the bottom end of an output shaft of the motor, a lifting mechanism, a positioning mechanism, an unlocking mechanism and a compaction mechanism are arranged at the top of the movable base, the compaction mechanism is matched with the movable base, the positioning mechanism, the unlocking mechanism and the lifting mechanism, and the compaction mechanism comprises a bearing mounting frame, a compaction roller and a mounting plate; according to the road backfilling and compacting device, soil is added into the inner side of the material storage shell, the motor is started, the motor drives the stirring rod to stir the soil, soil blockage is prevented, the height of the compacting roller is adjusted, backfilling and compacting can be conducted on a road, and the road backfilling and compacting device is rapid and convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of backfill equipment, and in particular to dry soil backfill equipment and a construction method for widening and renovating a road foundation. Background Art

[0002] Roads are infrastructure for various trackless vehicles and pedestrians to pass through. They are an important means to promote social and economic development. Ensuring or even extending the service life of roads is an important indicator for road construction.

[0003] During the construction or use of roads, potholes often appear on the roads. For example, when constructing the road base or laying concrete or asphalt, the road is unevenly laid, resulting in potholes. During the use of the road, the road surface peels and wears, resulting in potholes. The corresponding materials need to be filled in time to ensure a high quality of road operation.

[0004] The utility model with announcement number: CN214939138U provides a material backfilling device for potholes on roads, including a moving assembly, a storage assembly for receiving materials, and a spreading assembly for spreading materials flat on the potholes, wherein the storage assembly is provided with a discharge hole for materials to flow downward toward the potholes; the spreading assembly includes a fixed rod that vertically passes through the discharge hole and is rotatably connected to the storage assembly at the top, a plurality of support rods fixed to the fixed rod and rotatably connected to the wall of the discharge hole, a plurality of installation rods that are arranged transversely and fixed at one end to the bottom of the fixed rod, a plurality of first stirring rods that are arranged vertically and fixed at the top to the side of the installation rod close to the ground, and a driving member for driving the fixed rod, wherein the side of the installation rod close to the ground is located on the same horizontal plane as the side of the moving assembly that contacts the ground. The utility model has the effect of improving the problems of high labor intensity, low filling efficiency, and poor filling effect in filling potholes on roads by manual means.

[0005] The invention with announcement number: CN116024870A discloses a coastal shallow artificial backfill road construction equipment and its construction process, which includes a machine body, the machine body is provided with a hopper and a cab, a conveyor belt is provided in the hopper, a positioning plate is fixedly provided at one end of the cab away from the hopper, the positioning plate is fixedly connected with a motor, the motor output shaft is connected with a paving assembly, the cab is fixedly connected with a material blocking plate, the material blocking plate includes a vertical plate and mutually parallel baffles, the baffles are fixedly connected with the cab, the motor output shaft is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected with a transmission rod, the end of the transmission rod away from the second bevel gear is provided with a first worm part, vertical plates are fixedly connected with both sides of the vertical plate, a pressure roller is rotatably connected between the vertical plates, the pressure roller is provided with a circular groove, and a first worm wheel part meshed with the first worm part is fixedly provided in the circular groove. The application has the effect of improving the efficiency of mixed material paving and rolling.

[0006] Usually, the existing method of filling road potholes is to fill them manually, that is, first clean the potholes, then lay materials, and finally fill them from the top layer. This filling method is slow and labor-intensive, and the filling effect is not good. Therefore, the present invention proposes dry soil backfilling equipment and construction methods for widening and transforming road foundations to solve the above problems. Summary of the invention

[0007] Based on the technical problems existing in the background technology, the present invention proposes dry soil backfilling equipment and a construction method for widening and renovating a road foundation.

[0008] The dry soil backfilling device for widening and renovating the road foundation proposed by the present invention comprises a mobile base, a material storage shell is fixedly installed on the top of the mobile base, a motor is fixedly installed on the top of the material storage shell, the motor output shaft passes through the material storage shell, and a stirring rod is fixedly installed on the bottom end of the motor output shaft; A lifting mechanism, a positioning mechanism, an unlocking mechanism and a compacting mechanism are respectively arranged on the top of the mobile base, and the compacting mechanism is respectively matched with the mobile base, the positioning mechanism, the unlocking mechanism and the lifting mechanism.

[0009] Preferably, the compaction mechanism comprises: a load-bearing mounting frame, a compaction roller and a mounting plate; The load-bearing mounting frame is fixedly connected to the mounting plate, the mounting plate is slidably connected to the left side of the material storage shell, and the compacting roller is fixedly installed at the bottom of the load-bearing mounting frame.

[0010] Furthermore, the mounting plate and the load-bearing mounting frame are used to support the compaction roller. The mounting plate and the load-bearing mounting frame can slide on the left side of the material storage shell to adjust the height of the compaction roller, so that the compaction roller can adapt to various usage environments.

[0011] Preferably, the lifting mechanism comprises: a support frame, an unlocking handle, a connecting block, a push rod and a rotating rod; The support frame is fixedly installed on the top of the mobile base, the support frame is slidably connected to the load-bearing mounting frame, the unlocking handle is slidably connected to the front side of the support frame, the unlocking handle is rotatably connected to the connecting block, the connecting block is slidably connected to the push rod, the push rod is rotatably connected to the load-bearing mounting frame and the rotating rod respectively, and the rotating rod is rotatably connected to the support frame.

[0012] Furthermore, after the unlocking handle is pressed downward, the unlocking handle can drive the connecting block to slide downward, so that the connecting block can squeeze the push rod to rotate clockwise on the support frame, which can drive the rotating rod to rotate, so that the rotating rod and the push rod can lift the support frame to store the compacting roller, so that the compacting roller will not affect the movement of the movable base. Lifting the unlocking handle upward will release the compacting roller, causing the compacting roller to descend.

[0013] Preferably, the positioning mechanism comprises: a positioning frame, a spring and a fixing block; The positioning frame is slidably connected to the front side of the mounting plate, the positioning frame is fixedly connected to the spring, the spring is fixedly connected to the fixing block, and the fixing block is fixedly installed on the front side of the mounting plate.

[0014] Furthermore, after the positioning frame is engaged with the material storage shell, the positioning frame can connect the mounting plate and the material storage shell to block the movement of the mounting plate and the supporting mounting frame on the material storage shell, thereby realizing the positioning of the supporting mounting frame and the mounting plate, so that the supporting mounting frame can stably position the position of the compacting roller to stably use the compacting roller.

[0015] Preferably, the unlocking mechanism comprises: a pulling rod, a sliding block, a pushing rod, a driving rod and a connecting rod; The pulling rod is rotatably connected to the positioning frame and the sliding block respectively, the sliding block is slidably connected to the front side of the fixed block, the sliding block is rotatably connected to the pushing rod, the pushing rod is rotatably connected to the driving rod, the driving rod is slidably connected to the front side of the supporting mounting frame, and the connecting rod is slidably connected to the driving rod and the unlocking handle respectively.

[0016] Furthermore, after the connecting rod is pushed, the connecting rod can push the driving rod to move to the right, so that the driving rod can push the pushing rod, and the pushing rod can push the sliding block to slide upward, so that the sliding block can pull the pulling rod, and the pulling rod can pull the positioning frame to separate from the material storage shell, thereby unlocking the supporting mounting frame, and the position of the supporting mounting frame can be freely adjusted, which is quick and convenient.

[0017] Preferably, a plurality of positioning grooves arranged at equal intervals are provided on the left side of the material storage shell, a positioning block is fixedly installed on the right side of the positioning frame, and the right side of the positioning block is detachably engaged with the inner wall of the positioning groove.

[0018] Furthermore, after the positioning block is inserted into the inner side of the positioning groove, the positioning block can prevent the load-bearing mounting frame from moving, thereby achieving the positioning of the load-bearing mounting frame.

[0019] Preferably, a feed port is fixedly installed on the top of the material storage shell, and a discharge port is fixedly installed on the bottom of the material storage shell.

[0020] Furthermore, the feed port is used for the entry of soil, and the discharge port is used for the discharge of material from the storage shell to backfill the road.

[0021] Preferably, universal wheels arranged in a matrix are fixedly mounted on the bottom of the mobile base, the number of the universal wheels is four, a push handle is fixedly mounted on the left side of the mobile base, and a rectangular through hole is opened on the mobile base.

[0022] Furthermore, the universal wheels are used to support the mobile base and to move the mobile base.

[0023] The present invention also proposes a construction method for dry soil backfilling equipment for widening and renovating a road foundation, comprising the following steps: S1: First add soil to the inner side of the storage shell; S2: Start the motor, which drives the stirring rod to stir the soil; S3: The soil will fall onto the dry soil layer of the road through the discharge port; S4: The compaction roller can then compact the soil and backfill the dry soil layer.

[0024] The beneficial effects of the present invention are: 1. The mounting plate and the load-bearing mounting frame are used to support the compaction roller. The mounting plate and the load-bearing mounting frame can slide on the left side of the material storage shell to adjust the height of the compaction roller, so that the compaction roller can adapt to various use environments; 2. After the unlocking handle is pressed down, the unlocking handle can drive the connecting block to slide downward, so that the connecting block can squeeze the push rod to rotate clockwise on the support frame, which can drive the rotating rod to rotate, so that the rotating rod and the push rod can lift the support frame to store the compacting roller, so that the compacting roller will not affect the movement of the mobile base. Lifting the unlocking handle upward will release the compacting roller, causing the compacting roller to descend; 3. After the positioning frame is engaged with the material storage shell, the positioning frame can connect the mounting plate and the material storage shell to block the movement of the mounting plate and the bearing mounting frame on the material storage shell, thereby realizing the positioning of the bearing mounting frame and the mounting plate, so that the bearing mounting frame can stably position the compaction roller to stably use the compaction roller; 4. After the connecting rod is pushed, the connecting rod can push the driving rod to move to the right, so that the driving rod can push the pushing rod, and the pushing rod can push the sliding block to slide upward, so that the sliding block can pull the pulling rod, and the pulling rod can pull the positioning frame to separate from the material storage shell, thereby unlocking the load-bearing mounting frame, and the position of the load-bearing mounting frame can be freely adjusted, which is quick and convenient; The invention adds soil to the inner side of the material storage shell, starts the motor, and the motor drives the stirring rod to stir the soil to prevent soil blockage, and adjusts the height of the compacting roller to backfill and compact the road, which is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the dry soil backfilling equipment for widening and renovating the road foundation proposed by the present invention; Figure 2 A bottom-up schematic diagram of the structure of the dry soil backfilling equipment for widening and renovating the road foundation proposed by the present invention; Figure 3 A three-dimensional schematic diagram of the structure of the dry soil backfilling equipment for widening and renovating the road foundation proposed by the present invention; Figure 4 The invention provides a structural attachment for the dry soil backfilling equipment for widening and renovating the road foundation. Figure 1 Middle A is an enlarged schematic diagram; Figure 5 The invention provides a structural attachment for the dry soil backfilling equipment for widening and renovating the road foundation. Figure 1 Middle B is an enlarged schematic diagram.

[0026] In the figure: 1. Mobile base; 2. Universal wheel; 3. Push handle; 4. Storage shell; 5. Motor; 6. Stirring rod; 7. Feed inlet; 8. Discharge outlet; 9. Load-bearing mounting frame; 10. Compacting roller; 11. Support frame; 12. Mounting plate; 13. Positioning frame; 14. Spring; 15. Fixed block; 16. Pull rod; 17. Sliding block; 18. Push rod; 19. Driving rod; 20. Connecting rod; 21. Unlocking handle; 22. Connecting block; 23. Push rod; 24. Rotating rod. DETAILED DESCRIPTION

[0027] The present invention will be further explained below in conjunction with specific embodiments. Example

[0028] refer to Figure 1-5 In this embodiment, a dry soil backfilling device for widening and renovating a road foundation is proposed, comprising a mobile base 1, a material storage shell 4 is fixedly installed on the top of the mobile base 1, a motor 5 is fixedly installed on the top of the material storage shell 4, an output shaft of the motor 5 passes through the material storage shell 4, and a stirring rod 6 is fixedly installed at the bottom end of the output shaft of the motor 5; The top of the mobile base 1 is respectively provided with a lifting mechanism, a positioning mechanism, an unlocking mechanism and a compacting mechanism, and the compacting mechanism cooperates with the mobile base 1, the positioning mechanism, the unlocking mechanism and the lifting mechanism respectively.

[0029] In this embodiment, the compaction mechanism includes: a load-bearing mounting frame 9, a compaction roller 10 and a mounting plate 12; The load-bearing mounting frame 9 is fixedly connected to the mounting plate 12, and the mounting plate 12 is slidably connected to the left side of the material storage shell 4. The compacting roller 10 is fixedly mounted on the bottom of the load-bearing mounting frame 9. The mounting plate 12 and the load-bearing mounting frame 9 are used to support the compacting roller 10. The mounting plate 12 and the load-bearing mounting frame 9 can slide on the left side of the material storage shell 4 to adjust the height of the compacting roller 10, so that the compacting roller 10 can adapt to various usage environments.

[0030] In this embodiment, the lifting mechanism includes: a support frame 11, an unlocking handle 21, a connecting block 22, a top rod 23 and a rotating rod 24; The support frame 11 is fixedly installed on the top of the mobile base 1, the support frame 11 is slidably connected to the load-bearing mounting frame 9, the unlocking handle 21 is slidably connected to the front side of the support frame 11, the unlocking handle 21 is rotatably connected to the connecting block 22, the connecting block 22 is slidably connected to the top rod 23, the top rod 23 is rotatably connected to the load-bearing mounting frame 9 and the rotating rod 24 respectively, and the rotating rod 24 is rotatably connected to the support frame 11. After the unlocking handle 21 is pressed downward, the unlocking handle 21 can drive the connecting block 22 to slide downward, so that the connecting block 22 can squeeze the top rod 23 to rotate clockwise on the support frame 11, which can drive the rotating rod 24 to rotate, so that the rotating rod 24 and the top rod 23 can lift the support frame 11 to store the compacting roller 10, so that the compacting roller 10 will not affect the movement of the mobile base 1, and lifting the unlocking handle 21 upward will release the compacting roller 10, causing the compacting roller 10 to descend.

[0031] In this embodiment, the positioning mechanism includes: a positioning frame 13, a spring 14 and a fixing block 15; The positioning frame 13 is slidably connected to the front side of the mounting plate 12, the positioning frame 13 is fixedly connected to the spring 14, the spring 14 is fixedly connected to the fixing block 15, and the fixing block 15 is fixedly installed on the front side of the mounting plate 12. After the positioning frame 13 is engaged with the material storage shell 4, the positioning frame 13 can connect the mounting plate 12 and the material storage shell 4 to block the movement of the mounting plate 12 and the supporting mounting frame 9 on the material storage shell 4, so as to realize the positioning of the supporting mounting frame 9 and the mounting plate 12, so that the supporting mounting frame 9 can stably position the position of the compacting roller 10 to stably use the compacting roller 10.

[0032] In this embodiment, the unlocking mechanism includes: a pulling rod 16, a sliding block 17, a pushing rod 18, a driving rod 19 and a connecting rod 20; The pulling rod 16 is rotatably connected to the positioning frame 13 and the sliding block 17 respectively, the sliding block 17 is slidably connected to the front side of the fixed block 15, the sliding block 17 is rotatably connected to the pushing rod 18, the pushing rod 18 is rotatably connected to the driving rod 19, the driving rod 19 is slidably connected to the front side of the load-bearing mounting frame 9, and the connecting rod 20 is slidably connected to the driving rod 19 and the unlocking handle 21 respectively. After the connecting rod 20 is pushed, the connecting rod 20 can push the driving rod 19 to move to the right, so that the driving rod 19 can push the pushing rod 18, and the pushing rod 18 can push the sliding block 17 to slide upward, so that the sliding block 17 can pull the pulling rod 16, and the pulling rod 16 can pull the positioning frame 13 to disengage from the material storage shell 4, thereby realizing the unlocking of the load-bearing mounting frame 9, and the position of the load-bearing mounting frame 9 can be freely adjusted, which is quick and convenient.

[0033] In this embodiment, a plurality of positioning grooves arranged at equal intervals are provided on the left side of the material storage shell 4, and a positioning block is fixedly installed on the right side of the positioning frame 13. The right side of the positioning block can be detachably connected to the inner wall of the positioning groove. After the positioning block is inserted into the inner side of the positioning groove, the positioning block can prevent the load-bearing mounting frame 9 from moving, thereby realizing the positioning of the load-bearing mounting frame 9.

[0034] In this embodiment, a feed port 7 is fixedly installed on the top of the material storage shell 4, and a discharge port 8 is fixedly installed on the bottom of the material storage shell 4. The feed port 7 is used for the entry of soil, and the discharge port 8 is used for the material storage shell 4 to discharge materials to backfill the road.

[0035] In this embodiment, universal wheels 2 arranged in a matrix are fixedly installed on the bottom of the mobile base 1, and the number of universal wheels 2 is four. A pushing handle 3 is fixedly installed on the left side of the mobile base 1. A rectangular through hole is opened on the mobile base 1. The universal wheels 2 are used to support the mobile base 1 and to move the mobile base 1.

[0036] Working principle: first add soil to the inner side of the storage shell 4, start the motor 5, the motor 5 drives the stirring rod 6 to stir the soil, the soil will fall into the dry soil layer of the road through the discharge port 8, and then the compaction roller 10 can compact the soil and backfill the dry soil layer. If the position of the compaction roller 10 is not suitable and the height of the compaction roller 10 needs to be adjusted, just push the connecting rod 20 on the unlocking handle 21 first. After the connecting rod 20 is pushed, the connecting rod 20 can push the driving rod 19 to move to the right, so that The driving rod 19 can push the pushing rod 18, and the pushing rod 18 can push the sliding block 17 to slide upward, so that the sliding block 17 can pull the pulling rod 16, and the pulling rod 16 can pull the positioning frame 13 to separate from the material storage shell 4, thereby unlocking the supporting mounting frame 9 and the mounting plate 12. The mounting plate 12 and the supporting mounting frame 9 are used to support the compacting roller 10. The mounting plate 12 and the supporting mounting frame 9 can slide on the left side of the material storage shell 4 to adjust the height of the compacting roller 10, so that the compacting roller 10 can adapt to various use environments. When the height of the compacting roller 10 is adjusted, the connecting rod 20 is released, and the connecting rod 20 can release the positioning frame 13, so that the positioning frame 13 can automatically engage with the material storage shell 4. After the positioning frame 13 engages with the material storage shell 4, the positioning frame 13 can connect the mounting plate 12 and the material storage shell 4 to block the movement of the mounting plate 12 and the supporting mounting frame 9 on the material storage shell 4, so as to realize the positioning of the supporting mounting frame 9 and the mounting plate 12, so that the supporting mounting frame 9 can stably position the position of the compacting roller 10. To use the compacting roller 10 stably, unlock the unlocking handle 21 again after use, and press the unlocking handle 21 downward. After the unlocking handle 21 is pressed downward, the unlocking handle 21 can drive the connecting block 22 to slide downward, so that the connecting block 22 can squeeze the push rod 23 to rotate clockwise on the support frame 11, which can drive the rotating rod 24 to rotate, so that the rotating rod 24 and the push rod 23 can lift the support frame 11 to store the compacting roller 10, so that the compacting roller 10 will not affect the movement of the movable base 1.

[0037] The present invention also proposes a construction method for dry soil backfilling equipment for widening and renovating a road foundation, comprising the following steps: S1: first add soil to the inner side of the storage shell 4; S2: Start the motor 5, which drives the stirring rod 6 to stir the soil; S3: The soil will fall onto the dry soil layer of the road through the discharge port 8; S4: Then the compaction roller 10 can compact the soil and backfill the dry soil layer.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dry soil backfilling device for widening and renovating a road foundation, comprising a mobile base (1), characterized in that: A material storage shell (4) is fixedly mounted on the top of the mobile base (1), a motor (5) is fixedly mounted on the top of the material storage shell (4), an output shaft of the motor (5) passes through the material storage shell (4), and a stirring rod (6) is fixedly mounted on the bottom end of the output shaft of the motor (5); A lifting mechanism, a positioning mechanism, an unlocking mechanism and a compacting mechanism are respectively provided on the top of the mobile base (1), and the compacting mechanism cooperates with the mobile base (1), the positioning mechanism, the unlocking mechanism and the lifting mechanism respectively.

2. The dry soil backfilling equipment for widening and renovating road foundation according to claim 1 is characterized in that: The compacting mechanism comprises: a load-bearing mounting frame (9), a compacting roller (10) and a mounting plate (12); The load-bearing mounting frame (9) is fixedly connected to the mounting plate (12), the mounting plate (12) is slidably connected to the left side of the material storage shell (4), and the compacting roller (10) is fixedly mounted on the bottom of the load-bearing mounting frame (9).

3. The dry soil backfilling equipment for widening and renovating road foundation according to claim 1 is characterized in that: The lifting mechanism comprises: a support frame (11), an unlocking handle (21), a connecting block (22), a push rod (23) and a rotating rod (24); The support frame (11) is fixedly mounted on the top of the mobile base (1), the support frame (11) is slidably connected to the load-bearing mounting frame (9), the unlocking handle (21) is slidably connected to the front side of the support frame (11), the unlocking handle (21) is rotatably connected to the connecting block (22), the connecting block (22) is slidably connected to the top rod (23), the top rod (23) is rotatably connected to the load-bearing mounting frame (9) and the rotating rod (24), and the rotating rod (24) is rotatably connected to the support frame (11).

4. The dry soil backfilling equipment for widening and renovating road foundation according to claim 1 is characterized in that: The positioning mechanism comprises: a positioning frame (13), a spring (14) and a fixing block (15); The positioning frame (13) is slidably connected to the front side of the mounting plate (12), the positioning frame (13) is fixedly connected to the spring (14), the spring (14) is fixedly connected to the fixing block (15), and the fixing block (15) is fixedly mounted on the front side of the mounting plate (12).

5. The dry soil backfilling equipment for widening and renovating road foundation according to claim 1 is characterized in that: The unlocking mechanism comprises: a pulling rod (16), a sliding block (17), a pushing rod (18), a driving rod (19) and a connecting rod (20); The pulling rod (16) is rotatably connected to the positioning frame (13) and the sliding block (17), respectively. The sliding block (17) is slidably connected to the front side of the fixed block (15). The sliding block (17) is rotatably connected to the pushing rod (18), the pushing rod (18) is rotatably connected to the driving rod (19), the driving rod (19) is slidably connected to the front side of the supporting mounting frame (9), and the connecting rod (20) is slidably connected to the driving rod (19) and the unlocking handle (21), respectively.

6. The dry soil backfilling equipment for widening and renovating road foundation according to claim 4 is characterized in that: The left side of the material storage housing (4) is provided with a plurality of positioning grooves arranged at equal intervals, and a positioning block is fixedly mounted on the right side of the positioning frame (13), and the right side of the positioning block is detachably engaged with the inner wall of the positioning groove.

7. The dry soil backfilling equipment for widening and renovating road foundation according to claim 1 is characterized in that: A material inlet (7) is fixedly mounted on the top of the material storage shell (4), and a material outlet (8) is fixedly mounted on the bottom of the material storage shell (4).

8. The dry soil backfilling equipment for widening and renovating road foundation according to claim 1 is characterized in that: The bottom of the mobile base (1) is fixedly mounted with universal wheels (2) arranged in a matrix, the number of the universal wheels (2) being four, a pushing handle (3) is fixedly mounted on the left side of the mobile base (1), and a rectangular through hole is provided on the mobile base (1).

9. A construction method for dry soil backfilling equipment for widening and renovating road foundation, characterized in that: The following steps are involved: S1: first add soil to the inner side of the storage shell (4); S2: starting the motor (5), the motor (5) driving the stirring rod (6) to stir the soil; S3: The soil will fall onto the dry soil layer of the road through the discharge port (8); S4: The compaction roller (10) can then compact the soil and backfill the dry soil layer.

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