A device and method for paving and leveling dam slopes

Abstract

This invention discloses a device and method for paving and leveling a dam slope, comprising: a base frame; two sets of slide rails extending along the length of the base frame and respectively connected to opposite sides in the width direction within the base frame; a traveling trolley disposed between the two sets of slide rails; a horizontal drive mechanism for driving the traveling trolley to reciprocate along the slide rails; a lifting drive mechanism correspondingly connected to the two sets of slide rails for driving the slide rails to move up and down relative to the base frame; a scraper assembly connected to the bottom of the traveling trolley; and a sealing plate assembly including a downstream sealing plate and two side sealing plates, the downstream sealing plate being connected to the bottom of the slide rails located downstream of the base frame in the width direction; the two side sealing plates being respectively disposed on opposite sides in the length direction within the base frame, with one edge of the side sealing plate abutting against the downstream sealing plate. This device and method are used for paving and leveling concrete on dam slopes, saving manpower, improving paving quality and construction efficiency, and ensuring construction safety.

Description

Technical Field

[0001] This invention relates to the field of concrete panel construction technology, specifically to a device and method for paving and leveling dam slopes. Background Technology

[0002] Currently, with the in-depth development of water conservancy and hydropower construction, the construction of long-slope concrete-faced rockfill dams is increasing both domestically and internationally. However, the paving and leveling processes after the concrete face is poured still mainly rely on manual operation, making it difficult to guarantee construction efficiency and quality.

[0003] Taking the Lawa Hydropower Station as an example, the project is located on a plateau, and the dam concrete panel construction area features steep slopes. The panel lengths for each phase are 182.76m, 194.79m, and 88.43m, respectively, classifying it as long slope panel construction. Due to the large volume of concrete poured in each section, the timeliness of paving and leveling is crucial. Under complex construction conditions, traditional manual labor is not only inefficient and costly but also poses significant personnel safety risks and makes it difficult to guarantee the uniformity and stability of construction quality.

[0004] To ensure the efficiency, quality, and safety of concrete panel paving and leveling on long slopes, there is an urgent need to develop a technically feasible, safe, reliable, and economically reasonable device that can significantly improve paving and leveling efficiency. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a device and method for paving and leveling dam slopes, solving the issues of high manpower input, slow manual paving, high safety risks, and poor paving quality during the pouring of large-area concrete on long slopes.

[0006] A dam slope paving and leveling device includes: Base frame; Two sets of slide rails extend along the length of the base frame and are respectively connected to opposite sides in the width direction within the base frame; A traveling trolley is positioned between two sets of slide rails, and the traveling trolley has traveling wheels on both sides that cooperate with the corresponding side slide rail sets; A horizontal drive mechanism, mounted on the base frame, is used to drive the traveling trolley to reciprocate along the slide rail assembly; A lifting drive mechanism is mounted on the base frame and connected to two sets of slide rails, used to drive the slide rails to move up and down relative to the base frame. The scraper assembly is connected to the bottom of the traveling trolley, and the bottom of the scraper assembly is inclined to adapt to the slope surface. The sealing plate assembly includes a downstream sealing plate and two side sealing plates. The downstream sealing plate is connected to the bottom of the slide rail assembly located on the downstream side of the base frame in the width direction and extends along the extension direction of the slide rail assembly. The two side sealing plates are respectively disposed on opposite sides in the length direction within the base frame, and one edge of the side sealing plate abuts against the downstream sealing plate.

[0007] Furthermore, the base frame includes a load-bearing frame, which is formed by the intersection and fixed connection of multiple longitudinal beams, transverse beams and columns to form a cuboid skeleton; support frames are respectively provided at the bottom of both sides of the load-bearing frame along its length, and the support frames are triangular or right-angled trapezoidal frame structures, and their inclined sides are adapted to the inclination angle of the slope surface; the connecting frame is provided at the bottom of the downstream side of the load-bearing frame along its width and is connected to the two support frames.

[0008] Furthermore, the slide rail assembly is set within the load-bearing frame, and each slide rail assembly includes an upper slide rail and a lower slide rail arranged in parallel, with multiple support members fixedly connected between the upper slide rail and the lower slide rail.

[0009] Furthermore, the lifting drive mechanism includes multiple hydraulic cylinders arranged on the support frame. The multiple hydraulic cylinders are arranged one-to-one with two sets of slide rails. The telescopic end of each hydraulic cylinder extends downward into the support frame and is hinged to the top of the upper slide rail of the slide rail group on its corresponding side.

[0010] Furthermore, the support member of each set of slide rails corresponds to the column of the corresponding side bearing frame, and the two are slidably connected by a guide mechanism; the guide mechanism includes an elongated hole opened on the column and extending along its height direction, as well as a bolt and a nut; the bolt passes through the support member and the elongated hole and is threadedly connected to the nut, and the bolt and the elongated hole are slidably engaged.

[0011] Furthermore, the horizontal drive mechanism includes a winch located at the top of the support frame and guide wheel assemblies located on opposite sides of the support frame along its length. The winch includes a coaxially arranged double drum with steel wire ropes wound in opposite directions on each drum. The two steel wire ropes are led out from opposite sides of the double drum and pass around the guide wheel assemblies on the corresponding sides before extending into the support frame and being fixedly connected to the corresponding side of the traveling trolley.

[0012] Furthermore, the scraper assembly includes a base plate, which is inclined to adapt to the slope surface. The two sides of the base plate extend upward to form two side plates, which intersect to form a downward sloping ridge. One end face formed by the base plate and the two side plates abuts against the downstream sealing plate, thereby forming an overall structure with a plow-shaped outline. The highest end of the ridge is provided with a fixing plate for connecting with the traveling trolley.

[0013] Furthermore, the base plate has a herringbone structure, the side plate has a concave arc surface, the two side plates intersect at the ridge line in a herringbone shape, and each plate slopes downward in an arc from the ridge line to the two sides that are far apart from each other. The edge of the base plate that is connected to the side plate is set as an arc that matches the curvature of the side plate.

[0014] Furthermore, an equipment platform is provided at the top of the load-bearing frame, and a construction platform is erected above the equipment platform, with guardrails installed on the construction platform; a support slope plate adapted to the inclination angle of the slope is provided at the bottom of the support frame.

[0015] This invention also discloses a method for paving and leveling a dam slope, comprising the following steps: S1, using the dam top winch system in conjunction with the side formwork, the dam slope paving and leveling device slides down the slope to the bottom of the area to be poured; S2: Before the concrete is poured into the formwork, the hydraulic cylinder of the lifting drive mechanism drives two sets of slide rails to lift synchronously, thereby driving the scraper assembly and the downstream sealing plate to move vertically synchronously, adjusting the bottom height of the scraper assembly and the downstream sealing plate to match the design thickness of the panel to be poured. S3: Concrete is fed into the paving and leveling device via a chute, and then the scraper assembly is moved back and forth in the horizontal direction by the winch to spread the concrete. S4: After the concrete is laid, the paving and leveling device is pulled up the slope at a constant speed by the dam top winch system, and the concrete panel is leveled by the downstream sealing plate during the ascent.

[0016] The beneficial effects of this invention are: 1. The base frame of the present invention adopts an integrated combination of a load-bearing frame, a support frame and a connecting frame. The rectangular load-bearing frame at the top provides the working platform and equipment anchor points; the support frame at the bottom fits the slope, and the connecting frame fixes the two together as an integral skeleton, ensuring the rigidity of the paving and leveling device and ensuring that the device effectively resists elastic deformation during operation.

[0017] 2. This invention innovatively employs a scraper assembly in conjunction with a moving trolley. A winch, along with a wire rope, bidirectionally pulls the moving trolley, which moves horizontally back and forth along a set of slide rails, allowing the scraper assembly to stably and repeatedly spread concrete. Furthermore, the scraper assembly is designed with a plow-shaped structure; its streamlined design helps reduce resistance and ensures uniform flow when pushing concrete.

[0018] 3. The lifting drive mechanism of the present invention can adjust the distance between the scraper assembly and the bottom of the downstream sealing plate and the slope surface, thereby adapting to different concrete pouring thicknesses. During lifting adjustment, the hydraulic cylinder connected to the top of the slide rail assembly is extended and retracted, and the support members on the slide rail assembly and the columns of the bearing frame are connected by bolts to slide and constrain the slide rail assembly to move smoothly in the vertical direction.

[0019] 4. By setting up equipment platforms and construction platforms, it is convenient for staff to operate equipment and carry out construction work; at the same time, protective railings are set up around the construction platform to protect the safety of construction personnel working at height and reduce safety risks.

[0020] The device and method of this invention are used for concrete paving and leveling on dam slopes, which can save manpower, improve paving quality and construction efficiency, and ensure construction safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the operation of a dam slope paving and leveling device.

[0022] Figure 2 This is a schematic diagram of the structure of a dam slope paving and leveling device from one perspective.

[0023] Figure 3 This is a structural schematic diagram of a dam slope paving and leveling device from another perspective.

[0024] Figure 4 This is a schematic diagram of the base frame from one perspective.

[0025] Figure 5 This is a schematic diagram of the base frame from another perspective.

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0027] Figure 7 for Figure 5 Enlarged view of point B in the middle.

[0028] Figure 8 This is a partial structural diagram of a dam slope paving and leveling device.

[0029] Figure 9 for Figure 8 A magnified view of point C in the middle.

[0030] Figure 10 for Figure 8 Enlarged view of point D in the middle.

[0031] In the picture: 1. Base frame; 11. Load-bearing frame; 111. Horizontal beam; 112. Vertical beam; 113. Column; 12. Support frame; 121. Supporting inclined plate; 13. Connecting frame; 131. Diagonal web member; 2. Slide rail assembly; 21. Upper slide rail; 22. Lower slide rail; 23. Support component; 3. Sealing plate assembly; 31. Downstream sealing plate; 32. Side sealing plate; 4. Scraper assembly; 41. Base plate; 42. Side plate; 43. Fixing plate; 5. Traveling small... Vehicle, 51. Traveling wheel, 52. Mounting plate, 6. Horizontal drive mechanism, 61. Winch, 611. Drum, 612. Motor, 62. Wire rope, 63. Guide wheel assembly, 631. Guide wheel bracket, 632. Guide wheel, 7. Lifting drive mechanism, 71. Hydraulic cylinder, 72. Guide mechanism, 721. Long hole, 722. Bolt, 723. Nut, 8. Equipment platform, 9. Construction platform, 91. Guardrail. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0033] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] See Figures 1-10 A dam slope paving and leveling device, comprising: Base frame 1; Two sets of slide rails 2 extend along the length of the base frame 1 and are respectively connected to opposite sides in the width direction of the base frame 1; The traveling trolley 5 is positioned between two sets of slide rails 2, and the traveling trolley 5 has traveling wheels 51 on both sides that cooperate with the corresponding side slide rails 2. A horizontal drive mechanism 6 is mounted on the base frame 1 and is used to drive the traveling trolley 5 to reciprocate along the slide rail assembly 2. The lifting drive mechanism 7 is mounted on the base frame 1 and is connected to two sets of slide rails 2, and is used to drive the slide rails 2 to move up and down relative to the base frame 1. Scraper assembly 4 is connected to the bottom of the traveling trolley 5. The bottom of scraper assembly 4 is inclined to adapt to the slope surface. The sealing plate assembly 3 includes a downstream sealing plate 31 and two side sealing plates 32. The downstream sealing plate 31 is connected to the bottom of the slide rail assembly 2 located downstream of the base frame 1 in the width direction and extends along the extension direction of the slide rail assembly 2. The two side sealing plates 32 are respectively disposed on opposite sides in the length direction within the base frame, and one edge of the side sealing plate abuts against the downstream sealing plate.

[0036] It should be noted that the downstream side in the width direction of the base frame 1 refers to the relative rear side that follows the slope direction, so that when the device moves from bottom to top along the slope, the downstream sealing plate 31 can perform leveling operations on the paved concrete panel.

[0037] like Figure 4 and Figure 5 As shown, the base frame 1 includes a load-bearing frame 11, a support frame 12, and a connecting frame 13. The load-bearing frame 11 includes a crossbeam 111, a longitudinal beam 112, and a column 113. The longitudinal beam 112, the crossbeam 111, and the column 113 intersect and are fixed together to form a cuboid skeleton.

[0038] Support frames 12 are respectively set at the bottom of both sides of the bearing frame 11 along its length. The support frames 12 are triangular or right trapezoidal frame structures, and the inclined sides of the frame structure are adapted to the inclination angle of the slope.

[0039] The connecting frame 13 is located at the bottom downstream side of the bearing frame 11 in the width direction and extends along the extension direction of the bearing frame 11. The two sides of the connecting frame 13 in the length direction are respectively connected to the two supporting frames 12. The connecting frame 13 has a rectangular frame structure, including circumferentially enclosing frame members and diagonal web members 131 intersecting inside the frame members. The diagonal web members 131 divide the interior of the rectangular frame into multiple triangular grid structures.

[0040] The load-bearing frame 11, support frame 12, and connecting frame 13 are all constructed using structural steel. In a preferred embodiment, the load-bearing frame 11, support frame 12, and connecting frame 13 are an integral structure, and adjacent frames can share structural steel. For example, the intersection of the load-bearing frame 11 and the connecting frame 13 can share a column 113, and the intersection of the load-bearing frame 11 and the support frame 12 can share a longitudinal beam 112. In other embodiments, the load-bearing frame 11, support frame 12, and connecting frame 13 are detachably connected using bolts 722 or pins.

[0041] The base frame 1 adopts a rigid frame structure. The top load-bearing frame 11 provides the working platform and equipment anchor points; the bottom support frame 12 supports the slope, and the connecting frame 13 connects the two into an integral skeleton. The frame system has high overall strength and good adaptability, ensuring the rigidity of the paving and leveling device and ensuring that the device can effectively resist elastic deformation during operation.

[0042] The supporting frame 11 is equipped with a connector for connecting the traction rope of the dam crest winch system. The connector can be a lug plate, welded to the upstream side of the supporting frame 11. Furthermore, the lug plate has a pin hole, and the end connector of the traction rope is connected to the lug plate via a pin or shackle, allowing the entire base frame 1 to be moved by the dam crest winch system and the traction rope. Figure 3 As shown, the bottom of the support frame 12 is provided with a support inclined plate 121 adapted to the slope inclination angle, and the upstream side of the support inclined plate 121 is provided with an upward-curving section.

[0043] like Figure 2 and Figure 3 As shown, multiple square tubes are laid on the top of the supporting frame 11 to form an equipment platform 8; a construction platform 9 is erected above the equipment platform 8 for construction personnel to perform construction operations. A certain safety distance is maintained between the construction platform 9 and the equipment platform 8 to form an isolation space and prevent injury to construction personnel during equipment operation. In a preferred embodiment, as... Figure 1 As shown, the construction platform 9 is constructed from steel plates, angle steel, and square tubing. The steel plates are set above the square tubing of the equipment platform 8 and supported and fixed by multiple evenly distributed angle steel or square tubing. Anti-slip plates are laid on the steel plates to improve construction safety. A guardrail 91, constructed from steel pipes, is installed on the construction platform 9 to prevent construction personnel from falling from heights during equipment operation.

[0044] The slide rail assembly 2 is installed within the supporting frame 11 and extends along the length of the supporting frame 11. Each slide rail assembly 2 has one slide rail. The main frame of the traveling trolley 5 is a rigid rectangular frame, constructed by splicing and fixing steel sections. The position and size of the traveling wheels 51 on both sides of the traveling trolley 5 are adapted to the slide rail assembly 2, allowing the traveling wheels 51 of the traveling trolley 5 to roll smoothly within the slide rails. A horizontal mounting plate 52 is provided at the bottom of the main frame of the traveling trolley 5.

[0045] Preferred, such as Figure 8 , 9As shown in Figure 10, each set of slide rails 2 includes an upper slide rail 21 and a lower slide rail 22 arranged in parallel, with multiple support members 23 fixedly connected between the upper slide rail 21 and the lower slide rail 22. The top and bottom ends of the support members 23 are fixedly connected to the bottom surface of the upper slide rail 21 and the top surface of the lower slide rail 22, respectively. Specifically, the support members 23 are made of square tubing. The traveling trolley 5 has four traveling wheels 51 on each side, which cooperate with the upper slide rail 21 and the lower slide rail 22 on their corresponding sides, further improving operational stability. To clearly demonstrate the cooperation relationship between the traveling trolley 5 and the slide rail set 2, and to avoid obstruction by other structures, Figure 8 The middle section is a partial internal diagram after omitting some of the external structure.

[0046] like Figures 1-3 As shown, the horizontal drive mechanism 6 includes a winch 61 mounted on the top of the support frame 11 and guide wheel assemblies 63 mounted on opposite sides of the support frame 11 along its length. The winch 61 is fixed in the middle of the equipment platform 8 and includes a drum 611, which is a coaxial double drum. Opposite-rotating steel wire ropes are wound on the double drum. The two steel wire ropes are led out from opposite sides of the double drum, pass around the corresponding guide wheel assemblies 63, and extend into the support frame 11, where they are fixedly connected to the corresponding side of the traveling trolley 5. The winch 61 pulls the steel wire ropes 62 by rotating the drum 611. When the drum 611 rotates, the two steel wire ropes 62 simultaneously retract and release, i.e., one end retracts into the drum 611 while the other end is released from the drum 611, thereby driving the traveling trolley 5 to reciprocate along the slide rail assembly 2. In other embodiments, a common single-drum winch can be used to wind a steel wire rope in conjunction with the forward and reverse rotation of a motor to achieve reciprocating horizontal drive of the traveling trolley 5.

[0047] Preferably, the motor 612 housing of the winch 61 is provided with a rope support wheel for supporting the wire rope 62. The rope support wheel is located on the path of the wire rope 62 between the drum 611 and the guide wheel assembly 63, supporting the wire rope 62 to limit its sag, so as to maintain a safe distance between the wire rope 62 and the motor 612 housing and avoid friction between the wire rope 62 and the surface of the motor 612 housing.

[0048] like Figure 5 and Figure 7 As shown, the guide wheel assembly 63 includes guide wheel brackets 631 mounted on both sides of the bearing frame 11 along its length. Guide wheels 632 are rotatably connected to the guide wheel brackets 631. The guide wheel assembly 63 is used to change the direction of the wire rope 62 so that the end of the wire rope extends into the bearing frame 11 and connects with the traveling trolley 5.

[0049] To adapt to different slopes and pouring thicknesses, this invention includes a lifting drive mechanism 7 to achieve flexible adjustment of the paving thickness. For example... Figures 4-6As shown, the lifting drive mechanism 7 includes multiple hydraulic cylinders 71 arranged on the support frame. These hydraulic cylinders 71 are correspondingly arranged with two sets of slide rails 2. The telescopic end of each hydraulic cylinder 71 extends downward into the support frame 11 and is hinged to the top of the upper slide rail 21 of its corresponding slide rail set 2. Specifically, a total of four symmetrically distributed hydraulic cylinders 71 are provided. The vertical position of the slide rail sets 2 is adjusted by driving the hydraulic cylinders 71, thereby adjusting the distance between the bottom of the downstream sealing plate 31 and scraper assembly 4 and the area to be poured, adapting to different concrete pouring thicknesses.

[0050] It should be noted that, to ensure the synchronization of the multiple hydraulic cylinders 71 of the lifting drive mechanism 7, the hydraulic system preferably adopts mature hydraulic synchronization control technology, such as using a flow divider / combiner valve (synchronization valve) to proportionally distribute the flow output from the hydraulic pump to each group of cylinders, ensuring that the flow entering the four groups of hydraulic cylinders 71 is consistent, thereby ensuring that the lifting displacement of the four groups of hydraulic cylinders 71 is consistent. After the hydraulic cylinders 71 are adjusted to their positions, the cylinder stroke is locked to prevent displacement during paving stress. The above implementation method is existing technology and will not be described in detail here.

[0051] Furthermore, the supporting frame 11 is provided with a guide mechanism 72 for constraining the movement direction of the slide rail assembly 2. For example... Figure 5 , 6 As shown in Figure 10, the support member 23 of each slide rail group 2 corresponds to the column 113 of the corresponding side bearing frame 11, and the two are slidably connected by the guide mechanism 72. The guide mechanism 72 includes an elongated hole 721 opened on the column 113 and extending along its height direction, as well as a bolt 722 and a nut 723; the bolt 722 passes through the support member 23 and the elongated hole 721 and is threadedly connected to the nut 723, and the bolt 722 is slidably engaged with the elongated hole 721.

[0052] During the process of the lifting drive mechanism driving the slide rail assembly 2 to rise and fall vertically, the bolt 722 and the elongated hole 721 slide together, causing the support member to rise and fall along the height of the column, which guides the slide rail assembly 2 and constrains it to move smoothly in the vertical direction. When the adjustment is in place (the downstream sealing plate 31 is adjusted to a suitable height), the nut 723 and bolt 722 are finally tightened to lock the support member 23 onto the column 113.

[0053] The guide mechanism 72 is directly integrated between the column 113 of the supporting frame 11 and the support member 23 of the slide rail assembly 2, without the need for additional complex guide or limiting components. The structure is compact and reasonable, saving internal space and overall weight.

[0054] like Figure 8 and 9As shown, the scraper assembly 4 includes a base plate 41, which is inclined to adapt to the slope surface. The two sides of the base plate 41 extend upward to form two side plates 42. The two side plates 42 intersect to form a downward sloping ridge. One end face formed by the base plate 41 and the two side plates 42 abuts against the downstream sealing plate 31, thereby forming an overall structure with a plow-shaped outline. The highest end of the ridge is provided with a fixing plate 43 for fixed connection with the mounting plate 52 of the traveling trolley 5.

[0055] In one embodiment, both the side plate 42 and the bottom plate 41 are configured as triangular structures. In a preferred embodiment, such as... Figure 9 As shown, the base plate 41 has a herringbone structure, and the side plates 42 have concave arc-shaped surfaces. The two side plates 42 intersect at the ridge line in a herringbone shape and slope downwards in an arc from the ridge line to the sides that are further apart from each other. The edge of the base plate 41 that connects to the side plates 42 is set as an arc shape that matches the curvature of the side plates 42. The streamlined plow-shaped scraper is beneficial for pushing concrete and reducing resistance.

[0056] The downstream sealing plate 31 abuts against the inner side of the connecting frame 13 within the base frame 1. During the lifting and paving operations of the slide rail assembly 2, the base frame 1 can share the pressure on the downstream sealing plate 31. Two side sealing plates 32 are fixedly connected to the inner side of their corresponding support frames 12, and the cross-sectional dimensions of the side sealing plates 32 are adapted to the cross-sectional dimensions of the support frames 12. They are located on both sides of the horizontal stroke direction of the scraper assembly 4 to prevent grout leakage during paving. Specifically, the downstream sealing plate 31 is welded to the bottom of the downstream sliding rail 22 using steel plates, and the side sealing plates 32 are welded to the inner side of the support frame 12 using steel plates.

[0057] The present invention also provides a method for paving and leveling a dam slope, comprising the following steps: S1, using the dam top winch system in conjunction with the side formwork, the dam slope paving and leveling device slides down the slope to the bottom of the area to be poured; S2: Before the concrete is poured into the formwork, the hydraulic cylinder 71 of the lifting drive mechanism 7 drives the two sets of slide rails 2 to lift synchronously, thereby driving the scraper assembly 4 and the downstream sealing plate 31 to move vertically synchronously, adjusting the bottom height of the scraper assembly 4 and the downstream sealing plate 31 to a position that matches the design thickness of the panel to be poured. S3: Concrete enters the paving and leveling device through the chute, and then the wire rope is driven by the winch 61 to pull the scraper assembly 4 to move back and forth in the horizontal direction, and the concrete is paved by the scraper assembly 4. S4: After the concrete is laid, the paving and leveling device is pulled up the slope surface at a uniform speed by the dam top winch system, and the concrete panel is leveled by the downstream sealing plate 31 during the ascent.

[0058] Between steps S1 and S2, after the dam slope paving and leveling device is in place, a trial run is conducted on the dam slope paving and leveling device to test whether the winch 61, hydraulic cylinder 71 and scraper assembly 4 on the equipment platform are operating normally. If any operational faults are found, they are resolved in a timely manner to ensure the smooth progress of the subsequent paving process.

[0059] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A dam slope paving and leveling device, characterized in that, include: Base frame; Two sets of slide rails extend along the length of the base frame and are respectively connected to opposite sides in the width direction within the base frame; A traveling trolley is positioned between two sets of slide rails, and the traveling trolley has traveling wheels on both sides that cooperate with the corresponding side slide rail sets; A horizontal drive mechanism, mounted on the base frame, is used to drive the traveling trolley to reciprocate along the slide rail assembly; A lifting drive mechanism is mounted on the base frame and connected to two sets of slide rails, used to drive the slide rails to move up and down relative to the base frame. The scraper assembly is connected to the bottom of the traveling trolley, and the bottom of the scraper assembly is inclined to adapt to the slope surface. The sealing plate assembly includes a downstream sealing plate and two side sealing plates. The downstream sealing plate is connected to the bottom of the slide rail assembly located on the downstream side of the base frame in the width direction and extends along the extension direction of the slide rail assembly. The two side sealing plates are respectively disposed on opposite sides in the length direction within the base frame, and one edge of the side sealing plate abuts against the downstream sealing plate.

2. The dam slope paving and leveling device according to claim 1, characterized in that, The base frame includes a load-bearing frame, which is formed by the intersection and fixed connection of multiple longitudinal beams, transverse beams and columns to form a cuboid skeleton; support frames are respectively provided at the bottom of both sides of the load-bearing frame along its length, and the support frames are triangular or right-angled trapezoidal frame structures, and their inclined sides are adapted to the inclination angle of the slope surface; the connecting frame is provided at the bottom of the downstream side of the load-bearing frame along its width and is connected to the two support frames.

3. The dam slope paving and leveling device according to claim 2, characterized in that, The slide rail assembly is set within the load-bearing frame. Each slide rail assembly includes an upper slide rail and a lower slide rail arranged in parallel. Multiple support members are fixedly connected between the upper slide rail and the lower slide rail.

4. A dam slope paving and leveling device according to claim 3, characterized in that, The lifting drive mechanism includes multiple hydraulic cylinders arranged on the support frame. Each hydraulic cylinder is correspondingly set with two sets of slide rails. The telescopic end of each hydraulic cylinder extends downward into the support frame and is hinged to the top of the upper slide rail of the slide rail set on its corresponding side.

5. A dam slope paving and leveling device according to claim 4, characterized in that, Each set of slide rails has a support member corresponding to the column of the corresponding side bearing frame, and the two are slidably connected by a guide mechanism; the guide mechanism includes an elongated hole opened on the column and extending along its height direction, as well as a bolt and a nut; the bolt passes through the support member and the elongated hole and is threadedly connected to the nut, and the bolt and the elongated hole are slidably engaged.

6. A dam slope paving and leveling device according to claim 2, characterized in that, The horizontal drive mechanism includes a winch located at the top of the support frame and guide wheel assemblies located on opposite sides of the support frame along its length. The winch includes a coaxial double drum with steel wire ropes wound in opposite directions on each drum. The two steel wire ropes are led out from opposite sides of the double drum and pass around the guide wheel assemblies on the corresponding sides before extending into the support frame and being fixedly connected to the corresponding side of the traveling trolley.

7. A dam slope paving and leveling device according to claim 1, characterized in that, The scraper assembly includes a base plate, which is inclined to adapt to the slope surface. The two sides of the base plate extend upward to form two side plates. The two side plates intersect to form a downward sloping ridge. One end face formed by the base plate and the two side plates abuts against the downstream sealing plate, thereby forming an overall structure with a plow-shaped outline. The highest end of the ridge is provided with a fixing plate for connecting with the traveling trolley.

8. A dam slope paving and leveling device according to claim 7, characterized in that, The base plate has a herringbone structure, the side plate has a concave arc surface, the two side plates intersect at the ridge line in a herringbone shape, and each side plate slopes downward in an arc from the ridge line to the two sides that are far apart from each other. The edge of the base plate that connects to the side plate is set as an arc that matches the curvature of the side plate.

9. A dam slope paving and leveling device according to claim 2, characterized in that, An equipment platform is provided on the top of the load-bearing frame, and a construction platform is erected above the equipment platform. The construction platform is equipped with guardrails; a support slope plate adapted to the inclination angle of the slope is provided at the bottom of the support frame.

10. A method for paving and leveling a dam slope surface, based on the dam slope surface paving and leveling device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1, using the dam top winch system in conjunction with the side formwork, the dam slope paving and leveling device slides down the slope to the bottom of the area to be poured; S2: Before the concrete is poured into the formwork, the hydraulic cylinder of the lifting drive mechanism drives two sets of slide rails to lift synchronously, thereby driving the scraper assembly and the downstream sealing plate to move vertically synchronously, adjusting the bottom height of the scraper assembly and the downstream sealing plate to match the design thickness of the panel to be poured. S3: Concrete is fed into the paving and leveling device through a chute, and then the scraper assembly is moved back and forth in the horizontal direction by the winch to spread the concrete. S4: After the concrete is laid, the paving and leveling device is pulled up the slope at a constant speed by the dam top winch system, and the concrete panel is leveled by the downstream sealing plate during the ascent.

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