Method for constructing dam body of rock-fill dam before panel construction

Abstract

The invention discloses a method for constructing a dam body of a rock-fill dam before panel construction. The method comprises the steps that a transport vehicle transports stacked materials to a stacked material spraying device of the rock-fill dam for spraying and water adding; the newly extruded side wall is on the upper layer, and the previously formed side wall is on the lower layer; the newly extruded side walls are sequentially constructed on the dam body from one end close to the transportation road to the other end far away from the transportation road, so that the slope inclination of the upper-layer side wall is consistent with the slope inclination of the lower-layer side wall; and during the time period when one layer of the stacking rolling layer is rolled, the side wall on the upper layer is solidified, the consistency of the slope of the newly-extruded side wall located on the upper layer and the slope of the previously-formed side wall located on the lower layer is guaranteed, and the rock-fill dam construction structure capable of guaranteeing the panel construction slope is presented. The problem that the consistency of the gradient of each layer of upstream inclined plane cannot be ensured due to the fact that the dam body is formed by rolling and compacting the stockpile by directly flattening and rolling the stockpile is solved.

Description

Technical Field

[0001] The invention relates to a method for constructing a rockfill dam body before panel construction, and belongs to the technical field of dam bodies. Background Art

[0002] The rockfill dam body is formed by layered rolling of piled materials. Since the layered rolled dam body needs to be installed with concrete panels later, the inclination of each layer of the water-facing slope of the formed dam body must be consistent.

[0003] The existing rockfill dam material spreading technology is shown in Chinese Patent Publication No. CN114657945A, which discloses that: the mixed dry hard mixture is transported to the dam filling site by dump trucks, spread, leveled and rolled; although the direct leveling and rolling of the material pile can realize the compaction of the material pile to form a dam body, it cannot ensure the consistency of the inclination of each layer of the water-facing slope of the dam body. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a method for constructing a rockfill dam body before panel construction.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a method for constructing a rockfill dam body before panel construction, comprising: The transport vehicles transport the piled materials to the piled materials spraying device of the rockfill dam for spraying and adding water. In this process, the side wall is formed by extruding dry-mixed concrete through the extrusion equipment, so that the side wall presents an inclined surface toward the dam body and a vertical surface toward the dam body. The newly extruded side wall is on the upper layer, and the previously formed side wall is on the lower layer. The newly extruded side wall is on the dam body, and is constructed and presented in sequence from one end close to the transport road to the other end far from the transport road, so that the slope of the upper side wall is consistent with the slope of the lower side wall. The transport vehicles dump the materials to be leveled, which are first leveled and then rolled by a roller to form a pile rolling layer. The pile rolling layer leans against the newly extruded side wall, and the pile rolling layer obtains vertical surface limitation. During the time when the pile rolling layer completes the rolling of one layer, the upper side wall solidifies, ensuring the consistency of the slope of the newly extruded side wall in the upper layer with the slope of the previously formed side wall in the lower layer, presenting a rockfill dam construction structure that ensures the slope of the panel construction.

[0007] The rockfill dam material spraying device comprises: A support foot is fixedly installed on a transport road, a mounting frame is fixed on the top of the support foot, a slidable water supply pipe is fixed on the bottom of the mounting frame, and a nozzle for water spraying is connected and installed at the bottom of the water supply pipe.

[0008] A sliding block is fixedly installed on the top of the water delivery pipe, and a sliding rail is slidably installed on the sliding block, and the sliding rail is fixed on the bottom surface of the installation frame; the water delivery pipe and the horizontal projection of the sliding rail are vertically distributed.

[0009] Each of the water delivery pipes is slidably mounted on two parallel slide rails via two corresponding slide blocks.

[0010] The multiple water supply pipes are fixedly connected by a connecting plate, and the connecting plate is connected with a retractable telescopic part. The fixed end of the telescopic part is fixed on the installation frame, and the telescopic part slides on the slide rail with the water supply pipe; there is a transportation road for transportation vehicles to travel under the water supply pipe with a nozzle.

[0011] The beneficial effects of the present invention are as follows: the side walls are formed by extruding dry-mixed concrete through extrusion equipment, so that the side walls present an inclined surface toward the dam body and a vertical surface toward the dam body; during the time when one layer of the stockpile rolling layer is completed, the side walls of the upper layer are solidified, thereby ensuring the consistency of the slope of the newly extruded side walls in the upper layer with the slope of the previously formed side walls in the lower layer, solving the problem that directly flattening and rolling the stockpile can realize the rolling and compaction of the stockpile to form a dam body, but cannot ensure the consistency of the inclination of each layer of the water-facing slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the construction distribution structure of the present invention; Figure 2 It is a distribution diagram of the rockfill dam construction structure of the present invention; Figure 3 The structure of the pile spraying device of the present invention is shown in FIG. Figure 1 ; Figure 4 The structure of the pile spraying device of the present invention is shown in FIG. Figure 2 ; In the figure: 1-side wall; 2-dam body; 11-slope; 12-vertical surface; 13-pile of materials to be leveled; 14-pile rolling layer; 3-transport road; 4-support foot; 5-installation frame; 6-slide rail; 7-slider; 8-water supply pipe; 81-sprinkler; 82-connecting plate; 9-telescopic member. DETAILED DESCRIPTION

[0013] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0014] like Figures 1 to 4 shown.

[0015] The present application provides a method for constructing a rockfill dam body before face plate construction, comprising: The transport vehicle transports the stockpile to the stockpile spraying device of the rockfill dam for spraying and adding water. In this process, the side wall 1 is formed by extruding dry-mixed concrete through an extrusion device, so that the side wall 1 presents an inclined surface 11 toward the outer side of the dam body 2, and the side wall 1 presents a vertical surface 12 toward the inner side of the dam body 2; the newly extruded side wall 1 is on the upper layer, and the previously formed side wall 1 is on the lower layer; the newly extruded side wall 1 is on the dam body 2, and is constructed and presented in sequence from one end close to the transport road 3 to the other end away from the transport road 3, so that the slope of the inclined surface 11 of the upper side wall 1 is consistent with the slope of the inclined surface 11 of the lower side wall 1; The transport vehicle dumps a pile of materials 13 to be leveled, which is first leveled and then rolled by a roller to form a pile rolling layer 14. The pile rolling layer 14 leans against the newly extruded side wall 1, and the pile rolling layer 14 is limited by the vertical surface 12. During the time when the pile rolling layer 14 completes the rolling of one layer, the upper side wall 1 is solidified, ensuring the consistency of the slope of the newly extruded side wall 1 in the upper layer with the slope of the previously formed side wall 1 in the lower layer, presenting a rockfill dam construction structure that ensures the slope of the panel construction.

[0016] Among them, the rockfill dam construction structure that ensures the slope of the panel construction includes: The side wall 1 is formed by extruding dry-mixed concrete by extrusion equipment, and the side wall 1 has an inclined surface 11 on the outer side of the dam body 2 and a vertical surface 12 on the inner side of the dam body 2. The inclination of the upper and lower inclined surfaces 11 of the side wall 1 is consistent.

[0017] The pile material rolling layer 14 is formed by first flattening the pile material 13 and then rolling it by a roller; the pile material rolling layer 14 is close to the vertical surface 12 of the side wall 1.

[0018] The pile of material to be leveled 13 dumped by the transport vehicle leans against the part of the side wall 1 to be cured.

[0019] The side wall 1 is formed by extruding dry-mixed concrete through an extrusion device, so that the side wall 1 presents an inclined surface 11 toward the outer side of the dam body 2 and a vertical surface 12 toward the inner side of the dam body 2; during the time when the stockpile rolling layer 14 completes the rolling of one layer, the upper side wall 1 is solidified, thereby ensuring the consistency of the slope of the newly extruded side wall 1 in the upper layer with the slope of the previously formed side wall 1 in the lower layer, solving the problem that directly flattening and rolling the stockpile can realize the rolling and compaction of the stockpile to form a dam body, but cannot ensure the consistency of the inclination of each layer of the water-facing slope.

[0020] The present application provides a rockfill dam material spraying device, comprising: A support leg 4 is fixedly mounted on the transport road 3, a mounting frame 5 is fixed on the top of the support leg 4, a slide rail 6 is fixed on the bottom of the mounting frame 5, and the slide rail 6 is two parallelly distributed.

[0021] A slider 7 is slidably mounted in the slide rail 6, and a water pipe 8 is fixedly mounted on the slider 7 through a pipe clamp. There are multiple water pipes 8, each of which is slidably mounted on the slide rail 6 through two sliders 7. A nozzle 81 is provided at the bottom of the water pipe 8 for water spraying, and the water pipes 8 are fixedly connected by a connecting plate 82. Both ends of the water pipe 8 are connected with a deformable and shrinkable hose (not shown in the figure) to transport water into the water pipe 8.

[0022] The connecting plate 82 is connected with a retractable telescopic member 9, the fixed end of which is fixed on the mounting frame 5, and the telescopic member 9 slides with the water delivery pipe 8 on the slide rail 6. Below the water delivery pipe 8 with the nozzle 81 is a transport road 3 for transport vehicles to travel.

[0023] When a transport vehicle transporting piled materials moves on the transport road 3 to the bottom of the water supply pipe 8 with the nozzle 81 and needs to spray more water on the piled materials, the telescopic part 9 carries the water supply pipe 8 with the nozzle 81 to slide on the slide rail 6 in synchronization with the moving transport vehicle, so that the overlap time of the nozzle 81 and the transport vehicle on the transport road 3 is increased to increase the amount of spraying and adding water, so that the transport vehicle can spray and add water without stopping on the transport road 3.

Claims

1. A method for constructing a rockfill dam body before panel construction, characterized in that: include: The transport vehicle transports the piled material to the piled material spraying device of the rockfill dam for spraying and adding water. In this process, the side wall (1) is formed by extruding dry-mixed concrete through an extrusion device, so that the side wall (1) presents an inclined surface (11) toward the outer side of the dam body (2), and the side wall (1) presents a vertical surface (12) toward the inner side of the dam body (2); the newly extruded side wall (1) is on the upper layer, and the previously formed side wall (1) is on the lower layer; the newly extruded side wall (1) is on the dam body (2), and is constructed and presented in sequence from one end close to the transport road (3) to the other end away from the transport road (3), so that the inclination of the inclined surface (11) of the upper side wall (1) is consistent with the inclination of the inclined surface (11) of the lower side wall (1); The transport vehicle dumps the material pile (13) to be leveled, the material pile (13) to be leveled is first leveled, and then rolled by a roller to form a material rolling layer (14), the material rolling layer (14) leans against the newly extruded side wall (1), the material rolling layer (14) is limited by the vertical surface (12), and during the time when the material rolling layer (14) completes the rolling of one layer, the upper side wall (1) is solidified, ensuring the consistency of the slope of the newly extruded side wall (1) in the upper layer with the slope of the previously formed side wall (1) in the lower layer, presenting a rockfill dam construction structure that ensures the slope of the panel construction.

2. The method for constructing a rockfill dam body before face plate construction according to claim 1, characterized in that: The rockfill dam material spraying device comprises: A support foot (4) is fixedly mounted on a transport road (3), a mounting frame (5) is fixed on the top of the support foot (4), a slidable water supply pipe (8) is fixed on the bottom of the mounting frame (5), and a spray head (81) for water spraying is connected and mounted at the bottom of the water supply pipe (8).

3. The method for constructing a rockfill dam body before face plate construction according to claim 2, characterized in that: A slider (7) is fixedly mounted on the top of the water supply pipe (8), a slide rail (6) is slidably mounted on the slider (7), and the slide rail (6) is fixed on the bottom surface of the installation frame (5); the water supply pipe (8) and the slide rail (6) are vertically distributed in horizontal projection.

4. The method for constructing a rockfill dam body before face plate construction according to claim 3, characterized in that: The plurality of water delivery pipes (8) are slidably mounted on two parallel slide rails (6) via two sliding blocks (7).

5. The method for constructing a rockfill dam body before face plate construction according to claim 2, characterized in that: The plurality of water supply pipes (8) are fixedly connected via a connecting plate (82), the connecting plate (82) being connected to a retractable telescopic member (9), the fixed end of the telescopic member (9) being fixed on a mounting frame (5), the telescopic member (9) slidingly guides the water supply pipe (8) on a slide rail (6); a transport road (3) for transport vehicles to travel is provided below the water supply pipe (8) having a nozzle (81).

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