A synchronous construction mechanical device for the extrusion of side walls and the rolling of cushion layers of a concrete face rockfill dam

Abstract

A synchronous construction mechanical device for extruding side walls and compacting cushion layers of a concrete face rockfill dam, belonging to the technical field of construction machinery, includes an extrusion side wall machine and a plate vibratory rammer. The tail of the extrusion side wall machine is connected to a towed vehicle frame. The plate vibratory rammer is connected to the left side of the rear part of the towed vehicle frame. A side wall slope protection is connected to the right side of the rear part of the towed vehicle frame. The upper part of the towed vehicle frame is open and provided with a feeding port, and a hopper is arranged at the feeding port. The synchronous construction mechanical device for extruding side walls and compacting cushion layers of a concrete face rockfill dam uses a towed vehicle frame to carry a plate vibratory rammer, realizing the paving and compaction of cushion materials while constructing the extrusion side walls. It not only ensures the compaction quality at the joint of the side walls and cushion materials, but also effectively improves the construction efficiency. At the same time, the setting of the side wall slope protection protects the formed but unhardened extrusion side walls from being affected by the compaction construction and not deforming, realizing the integrated synchronous construction of the side walls and cushion materials.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction machinery, and relates to a construction machinery device for a concrete face rockfill dam, in particular to a construction machinery device for synchronously constructing the extrusion of the side wall and the compaction of the cushion layer of a concrete face rockfill dam. Background Art

[0002] Currently, for the construction of the cushion material of a concrete face rockfill dam, usually the overall forming of the extrusion side wall is carried out first. The traveling speed of the extrusion side wall machine is usually about 40 m / h. According to the length of the concrete face rockfill dam along the dam axis direction being 200 m, it takes 5 h to complete the construction of the extrusion side wall. Then, after waiting for 6 h to 8 h for the side wall to harden, the paving and compaction construction of the dam body cushion material is carried out.

[0003] In order to prevent large-scale compaction machines from causing lateral extrusion deformation to the extrusion side wall during the compaction of the cushion material, during construction, a self-propelled vibrating roller must be used to carry out large-scale compaction of the cushion material outside the 20-cm safety area from the extrusion side wall. This makes it difficult to guarantee the compaction quality of the cushion material within the 20-cm safety area, and it is easy to occur the phenomenon of voids at the joint between the cushion material and the extrusion side wall, affecting the coordinated deformation and force uniformity of the concrete slab-side wall-cushion material after the dam stores water. If a plate vibratory rammer is used to carry out the compaction construction of the extrusion side wall within the safety area, according to the best traveling speed of the plate vibratory rammer ≤ 60 m / h, it takes at least 3 h to complete the compaction of the cushion material within the safety area. It can be seen that using three processes for the extrusion of the side wall, pouring, and compaction of the cushion material is both labor-consuming and time-consuming, and at the same time increases the difficulty of construction organization and machine scheduling on the filling surface. If the compaction of the cushion material within the safety area and the pouring construction of the extrusion side wall can be carried out simultaneously, the construction efficiency will be significantly improved and economic benefits will be created. Summary of the Invention

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a construction machinery device for synchronously constructing the extrusion of the side wall and the compaction of the cushion layer of a concrete face rockfill dam, which is used to solve the technical problems that using three processes for the extrusion of the side wall, pouring, and compaction of the cushion material in the prior art is both labor-consuming and time-consuming, and at the same time increases the difficulty of construction organization and machine scheduling on the filling surface.

[0005] To achieve the above purpose and other related purposes, the present invention provides a construction machinery device for synchronously constructing the extrusion of the side wall and the compaction of the cushion layer of a concrete face rockfill dam, including an extrusion side wall machine and a plate vibratory rammer. A towing type vehicle frame is connected to the tail of the extrusion side wall machine. The plate vibratory rammer is connected to the left side of the rear part of the towing type vehicle frame. A side wall slope protection is connected to the right side of the rear part of the towing type vehicle frame. The upper part of the towing type vehicle frame is open and provided with a feeding port, and a hopper is arranged at the feeding port.

[0006] Preferably, a connecting device is welded to the tail of the extrusion side wall machine, and the towing type vehicle frame is rigidly connected to the tail of the extrusion side wall machine through the connecting device.

[0007] Preferably, four movable buckles are provided at the bottom of the plate compactor, and the plate compactor is suspended on the left side of the rear of the towed vehicle frame through the movable buckles and steel hinges. The bottom surface of the plate compactor is on the same horizontal plane as the top of the side wall to be extruded.

[0008] Preferably, the hopper is 60 cm long, 40 cm wide, and 126 cm high, and the loading capacity is 240 - 280 L.

[0009] Preferably, the filling volume of the hopper does not exceed 260 L.

[0010] Preferably, the side wall slope protection is 100 cm long and 68.8 cm wide, and the side wall slope protection is inclined and welded to the right side of the rear of the towed vehicle frame.

[0011] Preferably, the included angle between the side wall slope protection and the ground is 36.3°.

[0012] Preferably, wheels symmetrically arranged about the middle of the vehicle frame are provided on the lower surface of the towed vehicle frame. The two wheels are connected by a hydraulic shaft, and a hydraulic regulator is installed at the rear of the towed vehicle frame. The hydraulic regulator is connected to the hydraulic shaft through a hose.

[0013] Preferably, the diameter of the wheel is 50 cm.

[0014] As described above, a mechanical device for synchronous construction of side wall extrusion and cushion layer compaction of a concrete face rockfill dam according to the present invention has the following beneficial effects:

[0015] 1. In the present invention, the plate compactor is carried by the towed vehicle frame, realizing the paving and compaction of the cushion layer while extruding the side wall. This not only ensures the compaction quality at the joint of the side wall and the cushion layer, but also effectively improves the construction efficiency because the intermittent time waiting for the side wall to harden before cushion layer compaction is reduced.

[0016] 2. In the present invention, the setting of the side wall slope protection protects the formed but unhardened extruded side wall from being affected by the compaction construction and not deforming, realizing the integrated synchronous construction of the side wall and the cushion layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a side view of the structure of the present invention.

[0018] Figure 2 Shown is a rear view of the structure of the present invention.

[0019] Figure 3 Shown is a schematic connection diagram of the towed vehicle frame and the side wall extruder in the invention.

[0020] Description of Element Numbers

[0021] 1 - Plate vibratory rammer, 2 - Towed vehicle frame, 3 - Hopper, 4 - Wheels, 5 - Hydraulic regulator, 6 - Sidewall slope protection, 7 - Connecting device, 8 - Cushion strip Specific implementation mode

[0022] The following specific embodiments illustrate the implementation modes of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification

[0023] Please refer to Figures 1 to 3 Note that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present invention. Therefore, they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration, and are not used to limit the implementation scope of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope in which the present invention can be implemented

[0024] Please refer to Figures 1-3 The present invention provides a synchronous construction mechanical device for extruding sidewalls and compacting cushions of a concrete face rockfill dam, including an extruding sidewall machine and a plate vibratory rammer 1. The tail of the extruding sidewall machine is connected to a towed vehicle frame 2. The plate vibratory rammer 1 is connected to the left rear of the towed vehicle frame 2. A sidewall slope protection 6 is connected to the right rear of the towed vehicle frame 2. The upper part of the towed vehicle frame 2 is open and provided with a feeding port, and a hopper 3 is provided at the feeding port

[0025] When this embodiment is used, before construction, the feeding port of the extruded sidewall machine is filled with the extruded sidewall material, and the hopper 3 is filled with the cushion material. Then, the cushion material with a height of 45 cm is filled under the flat vibrating rammer 1 to provide effective support for the flat vibrating rammer 1. The flat vibrating rammer 1 is placed on the upper part of the laid cushion material and connected to the towed vehicle frame 2. The towed vehicle frame 2 is towed by the power during the walking of the extruded sidewall machine to achieve walking. During the construction process, the extruded sidewall machine and the flat vibrating rammer 1 are started synchronously. After the cushion material enters the towed vehicle frame 2, it is rolled by the flat vibrating rammer 1 and compacted at the lower part of the towed vehicle frame 2. As the towed vehicle frame 2 walks, a cushion material strip 8 with a length of 50 cm × width of 50 cm × depth of 40 cm is formed at the lower part of the towed vehicle frame 2. After the construction is completed, the flat vibrating rammer 1 is removed, the cushion material is compacted, and the sidewall is not damaged. The compaction degree of the cushion material is detected by the water injection method. The test results show that the dry density is 2400 kg / m 3 , the compaction degree reaches 95%, and the porosity is between 15% and 20%, meeting the requirements of the design code for concrete face rockfill dams. By using the synchronous construction machinery for sidewall extrusion and cushion rolling, while ensuring the rolling quality of the cushion material, it saves 6 - 8 hours of the hardening interval time of the sidewall and 3 hours of the individual rolling time of the flat vibrating rammer 1 compared with the traditional method, greatly improving the construction efficiency. Therefore, in this embodiment, the towed vehicle frame 2 is used to carry the flat vibrating rammer 1, realizing the paving and rolling of the cushion material while constructing the extruded sidewall, ensuring the rolling quality at the joint of the sidewall and the cushion material, and effectively improving the construction efficiency because the intermittent time waiting for the sidewall to harden before cushion rolling is reduced.

[0026] In this embodiment, during the construction process, the working power of the flat vibrating rammer is 2.5 KW, and the traveling speed of the extruded sidewall machine is 40 m / h. The feeding speed of the extruded sidewall machine is controlled, and the material is fed into the hopper 3 at the same time, ensuring the synchronous paving and rolling construction of the cushion material.

[0027] In this embodiment, according to the provisions of the "Technical Specification for Extruded Sidewalls of Concrete Face Rockfill Dams DL / T 5297 - 2013" and combined with the mix ratio of the extruded sidewall material for actual engineering applications, the extruded sidewall material is prepared according to the mix ratio in Table 1.

[0028] Table 1

[0029]

[0030] In this embodiment, a connecting device 7 is welded to the tail of the extruded sidewall machine, and the towed vehicle frame 2 is rigidly connected to the tail of the extruded sidewall machine through the connecting device 7. The connection method between the connecting device 7 and the extruded sidewall machine is not limited to welding, and other connection methods that can achieve the fixed connection between the connecting device 7 and the extruded sidewall machine are also acceptable.

[0031] In this embodiment, four movable buckles (not shown in the figure) are provided at the bottom of the plate compactor 1, and the plate compactor 1 is suspended on the left side of the rear of the towed vehicle frame 2 through the movable buckles and a steel hinge (not shown in the figure). The connection method between the plate compactor 1 and the towed vehicle frame 2 is not limited to being connected through the movable buckles and the steel hinge, and any other connection method that can achieve detachable connection between the plate compactor 1 and the towed vehicle frame 2 is acceptable.

[0032] In this embodiment, the bottom surface of the plate compactor 1 is on the same horizontal plane as the top of the side wall to be extruded, that is, the height of the bottom surface of the plate compactor 1 is flush with the top of the side wall to be extruded, so as to realize timely compaction of the filled cushion material.

[0033] As a further description of the above embodiment, the hopper 3 has a length of 60 cm, a width of 40 cm, a height of 126 cm, a loading capacity of 240 - 280 L, and a maximum filling capacity not exceeding 260 L to prevent the cushion material from overflowing.

[0034] As a further description of the above embodiment, the side wall slope protection 6 has a length of 100 cm and a width of 68.8 cm. The side wall slope protection 6 is obliquely welded to the right side of the rear of the towed vehicle frame 2, and the included angle between the side wall slope protection 6 and the ground is 36.3°.

[0035] When this embodiment is used, the setting of the side wall slope protection 6 can limit and prevent the newly formed and unhardened side wall from having lateral displacement and deformation towards the upstream surface of the dam, protect the formed and unhardened extruded side wall from being affected by the compaction construction and not generating deformation, and realize the integrated and synchronous construction of the side wall and the cushion material.

[0036] As a further description of the above embodiment, wheels 4 symmetrically arranged about the middle of the vehicle frame are provided on the lower surface of the towed vehicle frame 2. The two wheels 4 are connected by a hydraulic shaft. A hydraulic regulator 5 is installed at the rear of the towed vehicle frame 2. The hydraulic regulator 5 is connected to the hydraulic shaft through a hose. The diameter of the wheel 4 is 50 cm.

[0037] When this embodiment is used, according to the construction site conditions, the hydraulic regulator 5 is used to adjust the heights of the wheels 4 on both sides of the towed vehicle frame 2. The maximum adjustment limit of the two side tires is 10 cm. The purpose of the adjustment is to make the two sides of the towed vehicle frame 2 horizontal and ensure that the bottom of the vehicle frame does not scrape the construction surface; at the same time, the height of the front connecting device 7 of the towed vehicle frame 2 can also be adjusted to make the front and rear of the vehicle frame horizontal and align the slope protection surface of the vehicle frame with the side wall slope surface of the extruded side wall machine; then the vehicle frame connecting device 7 is welded to the tail of the extruded side wall machine.

[0038] In summary, the present invention uses a towed vehicle frame to carry a plate compactor, realizing the paving and rolling of cushion materials while constructing the extruded side wall. This not only ensures the rolling quality at the joint between the side wall and the cushion material, but also effectively improves the construction efficiency because the intermittent time waiting for the side wall to harden before cushion rolling is reduced. At the same time, the setting of the side wall slope protection prevents the formed but unhardened extruded side wall from being affected by the rolling construction and deforming, realizing the integrated and synchronous construction of the side wall and the cushion material. Therefore, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0039] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A synchronous construction mechanical device for extruding side walls and compacting cushions of a concrete face rockfill dam, comprising an extrusion side wall machine and a plate vibratory rammer (1). Characterized in that: A towed vehicle frame (2) is connected to the tail of the extrusion side wall machine, the plate vibratory rammer (1) is connected to the left side of the rear of the towed vehicle frame (2), a side wall slope protection (6) is connected to the right side of the rear of the towed vehicle frame (2), the upper part of the towed vehicle frame (2) is open and provided with a feeding port, and a hopper (3) is provided at the feeding port.

2. The synchronous construction mechanical device for extruding side walls and compacting cushions of a concrete face rockfill dam according to claim 1. Characterized in that: A connecting device (7) is welded to the tail of the extrusion side wall machine, and the towed vehicle frame (2) is rigidly connected to the tail of the extrusion side wall machine through the connecting device (7).

3. The synchronous construction mechanical device for extruding side walls and compacting cushions of a concrete face rockfill dam according to claim 1. Characterized in that: Four movable buckles are provided at the bottom of the plate vibratory rammer (1), and the plate vibratory rammer (1) is suspended from the left side of the rear of the towed vehicle frame (2) through the movable buckles and steel hinges, and the bottom surface of the plate vibratory rammer (1) is on the same horizontal plane as the top of the side wall to be extruded.

4. The synchronous construction mechanical device for extruding side walls and compacting cushions of a concrete face rockfill dam according to claim 1. Characterized in that: The hopper (3) is 60 cm long, 40 cm wide and 126 cm high, and the loading capacity is 240 - 280 L.

5. The synchronous construction mechanical device for extruding side walls and compacting cushions of a concrete face rockfill dam according to claim 4. Characterized in that: The filling volume of the hopper (3) does not exceed 260 L.

6. The synchronous construction mechanical device for extruding side walls and compacting cushions of a concrete face rockfill dam according to claim 1. Characterized in that: The side wall slope protection (6) is 100 cm long and 68.8 cm wide, and the side wall slope protection (6) is obliquely welded to the right side of the rear of the towed vehicle frame (2).

7. The synchronous construction mechanical device for extruding side walls and compacting cushions of a concrete face rockfill dam according to claim 1. Characterized in that: The included angle between the side wall slope protection (6) and the ground is 36.3°.

8. The synchronous construction mechanical device for extruding side walls and compacting cushions of a concrete face rockfill dam according to claim 1. Characterized in that: Wheels (4) symmetrically arranged about the middle of the vehicle frame are provided on the lower surface of the towed vehicle frame (2), the two wheels (4) are connected by a hydraulic shaft, a hydraulic regulator (5) is installed at the rear of the towed vehicle frame (2), and the hydraulic regulator (5) is connected to the hydraulic shaft through a hose.

9. The synchronous construction mechanical device for extruding side walls and compacting cushions of a concrete face rockfill dam according to claim 8. Characterized in that: The diameter of the wheel (4) is 50 cm.

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