Active antifreeze concrete panel for rockfill dam and pouring method

Abstract

The present disclosure provides an active anti-freezing concrete panel for a rockfill dam and a method for casting the concrete panel for a rockfill dam. The concrete panel for the rockfill dam includes a panel body made of conductive concrete. Two electrodes electrically connected to an external circuit are provided inside the panel body. A shielding area is provided on the panel body between the two electrodes. The panel body is constructed to form a current in an area between the two electrodes and outside the shielding area, so that the panel body is conductive with the external circuit, thereby ensuring the mechanical properties of the panel body while reducing the heat loss of the heating layer, thereby reducing the operating cost of the panel body, achieving early preheating before the arrival of a cold wave, and adopting flexible power supply according to the intensity of the cold wave, thereby minimizing freezing damage and ensuring the safe and normal operation of the dam.

Description

Technical Field

[0001] The present disclosure relates to the field of hydraulic structures, and more particularly, to a concrete panel for a rockfill dam and a pouring method thereof. Background Art

[0002] The concrete panel for panel rockfill dam is the first barrier for the panel rockfill dam to cope with external loads, and its safety is an important guarantee for the safe operation of the concrete panel rockfill dam.

[0003] Currently, in severely cold regions, particularly at higher latitudes, the frost resistance of concrete panels used in face-fill rockfill dams (FRMs) has become a significant constraint on the expansion of FRMs in cold and high-altitude areas. Existing frost protection methods primarily include passive and active protection. Passive protection can include improving the frost resistance and impermeability of the concrete panels; applying an antifreeze coating to the surface of the concrete panels; appropriately increasing the steel content; and modifying the structure and surface waterstop connection methods of the concrete panels. Active protection can include using conductive concrete to manufacture the concrete panels, preheating them before a cold wave arrives to minimize frost damage. However, concrete panels using active protection are typically cast entirely with conductive concrete. A heat-generating layer is formed between two electrodes to provide an outward heat protection effect. In practice, the central area of the concrete panels of rockfill dams has excellent thermal insulation, requiring less heating. Therefore, the method of heating the entire body between the two electrodes will result in a large heat loss, and since the heat in the middle area is not easy to dissipate, it may also cause uneven temperature inside and outside the concrete panel for the rockfill dam. Summary of the Invention

[0004] To address at least one of the aforementioned and other technical issues in the prior art, the present disclosure provides a concrete panel for a rockfill dam and a casting method. By providing a shielding area within the panel body, when two electrodes are electrically connected to the outside, current is generated only in the area between the two electrodes and outside the shielding area, so that this area forms a heat-generating layer that generates heat outward, thereby reducing heat loss in the concrete panel for the rockfill dam.

[0005] An embodiment of the present disclosure provides a concrete panel for a rockfill dam, comprising: a panel body made of conductive concrete, two electrodes electrically connected to an external circuit being provided inside the panel body, a shielding area being provided on the panel body between the two electrodes, and the panel body being configured to generate a current in an area between the two electrodes and outside the shielding area, thereby conducting the panel body with the external circuit.

[0006] According to some embodiments of the present disclosure, the concrete panel further comprises an electric cage made of a material having a resistance value lower than that of the conductive concrete. The electric cage is disposed between the two electrodes, and the interior of the electric cage forms the shielding area.

[0007] According to some embodiments of the present disclosure, the two electrodes are configured as a plate-like structure, and the two electrodes are arranged in parallel and spaced apart on both sides of the panel body and are orthogonal to the extension direction of the bottom surface of the panel body.

[0008] According to some embodiments of the present disclosure, the electric cage is configured as a cubic structure, and two facing side walls of the electric cage are configured to be parallel to an extension direction of the electrode.

[0009] According to some embodiments of the present disclosure, the concrete panel further includes a positioning member detachably installed between the electric cage and the electrode, so that the electrode remains at a position perpendicular to the bottom surface of the panel body.

[0010] According to some embodiments of the present disclosure, the electrode is provided with a through hole, and an elastic spring is provided on the inner edge of the through hole; the positioning member is constructed into a cylindrical structure, and one axial end of the positioning member is detachably mounted on the side wall of the electric cage facing the electrode, and the other axial end of the positioning member is provided with a groove for engaging with the spring, so as to limit the position of the electrode relative to the electric cage in the assembled state.

[0011] According to some embodiments of the present disclosure, the concrete panel further includes a protective layer formed below the bottom surface of the panel body to block at least a portion of heat released by the panel body.

[0012] According to some embodiments of the present disclosure, the concrete panel further includes an insulating layer disposed above the top surface of the panel body to insulate the panel body from the outside.

[0013] An embodiment of the present disclosure also provides a method for casting a concrete panel for a rockfill dam, comprising: casting foamed mortar on the dam surface of the rockfill dam to form a protective layer; inserting the lower ends of a plurality of vertical reinforcements into the protective layer in a direction perpendicular to the dam surface, and building an electric cage based on the vertical reinforcements; symmetrically installing two electrodes on opposite sides of the outside of the electric cage, and inserting the lower ends of the two electrodes into the protective layer in a direction perpendicular to the dam surface; installing a positioning piece between the electric cage and the electrodes to limit the position of the upper ends of the electrodes relative to the electric cage so that the electrodes remain in a state perpendicular to the dam surface; casting conductive concrete until the conductive concrete reaches the thickness required for the panel body; and applying liquid quick-setting rubber on the upper surface of the panel body to form an insulating layer.

[0014] According to some embodiments of the present disclosure, pouring the conductive concrete until the conductive concrete reaches the required thickness of the panel body includes: pouring the conductive concrete until the position of the electrode relative to the dam surface is fixed by the conductive concrete and the positioning piece is not immersed, then removing the positioning piece; and continuing to pour the conductive concrete until the required thickness of the panel body is reached.

[0015] According to the concrete panel and casting method for rockfill dams provided by the present disclosure, a shielding area is provided within the panel body. When two electrodes are electrically connected to the outside, current is generated only in the area between the two electrodes and outside the shielding area, so that this area forms a heat-generating layer that generates heat outward, thereby reducing heat loss in the concrete panel for rockfill dams. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of a concrete panel for a rockfill dam according to an exemplary embodiment of the present disclosure;

[0017] Figure 2 yes Figure 1 a perspective view of the electric cage of the illustrated exemplary embodiment;

[0018] Figure 3 yes Figure 1 A schematic diagram of the assembly state of the electric cage, electrodes and positioning members of the exemplary embodiment shown;

[0019] Figure 4 yes Figure 3 a side view of an electrode of the illustrated exemplary embodiment;

[0020] Figure 5 yes Figure 4 A partial enlarged view of a through hole of an electrode of the exemplary embodiment shown;

[0021] Figure 6 yes Figure 3 a side view of the positioning member of the illustrated exemplary embodiment from a radial perspective; and

[0022] Figure 7 The present invention is a flowchart of a method for casting a concrete panel for a rockfill dam according to an exemplary embodiment of the present invention.

[0023] In the drawings, the meanings of the reference numerals are as follows:

[0024] 1. Insulation layer;

[0025] IB223735

[0026] 2. Panel body;

[0027] 3. Protective layer;

[0028] 4. Electric cage;

[0029] 41. Horizontal bars;

[0030] 42. Longitudinal reinforcement;

[0031] 43. Upper horizontal ribs;

[0032] 44. Vertical reinforcement;

[0033] 45. Lower horizontal reinforcement;

[0034] 5. Electrode;

[0035] 51. Through hole;

[0036] 52. Reed;

[0037] 6. Positioning parts; and

[0038] 61. Groove. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0040] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise," "include," etc. used herein indicate the presence of the features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0041] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0042] When expressions such as “at least one of A, B, and C, etc.” are used, they should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art. For example, “a system having at least one of A, B, and C” should include but is not limited to systems having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, and C, etc. When expressions such as “at least one of A, B, or C, etc.” are used, they should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art. For example, “a system having at least one of A, B, or C” should include but is not limited to systems having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, and C, etc.

[0043] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0044] Figure 1 It is a perspective view of a concrete panel for a rockfill dam according to an exemplary embodiment of the present disclosure.

[0045] According to the embodiment of the present disclosure, a concrete panel for a rockfill dam is provided, such as Figure 1 As shown, the concrete panel for a rockfill dam includes a panel body 2 made of conductive concrete. Two electrodes 5 are disposed within the panel body 2, electrically connected to an external circuit. A shielding region is provided between the two electrodes 5. The panel body 2 is configured so that current flows between the two electrodes 5 and outside the shielding region, allowing electrical conduction between the panel body 2 and the external circuit.

[0046] In an exemplary embodiment, the conductive concrete includes, but is not limited to, using carbon black as the conductive material.

[0047] In detail, the carbon black includes but is not limited to 4% to 5% by mass of the conductive concrete.

[0048] In an exemplary embodiment, the shielding area is formed in the middle of the panel body 2 .

[0049] In detail, the shielding area is constructed into a substantially cubic structure, and the center of the shielding area substantially coincides with the center of the panel body 2 .

[0050] In such an embodiment, by providing a shielding area within the panel body, when the two electrodes are electrically connected to the outside, current is generated only in the area between the two electrodes that is outside the shielding area, so that this area forms a heating layer that generates heat externally, while the conductive concrete within the shielding area does not generate heat, which can significantly reduce the heat loss of the concrete panel for rockfill dams. Furthermore, since the heating layer is provided outside the shielding area, it has better thermal conductivity and can more effectively prevent the problem of uneven temperature distribution in the concrete panel for rockfill dams. According to the embodiments of the present disclosure, if Figure 1 As shown, the concrete panel for rockfill dam further includes a protective layer 3 formed below the bottom surface of the panel body 2 to block at least a portion of heat released by the panel body 2 .

[0051] In an illustrative embodiment, Figure 1 As shown, the protective layer 3 below the bottom surface of the panel body 2 is foamed mortar, which is a mixture of cement, sand, foam and water.

[0052] In such an embodiment, the protective layer 3 is provided below the bottom surface of the panel body 2 to protect the dam surface, and at the same time can significantly reduce the dissipation of heat energy to the dam surface, further reducing the power supply cost.

[0053] According to the embodiments of the present disclosure, Figure 1 As shown, the concrete panel for rockfill dam further includes an insulating layer 1 provided above the top surface of the panel body 2 to insulate the panel body 2 from the outside.

[0054] In an illustrative embodiment, Figure 1 As shown, the insulating layer 1 above the top surface of the panel body 2 is made of liquid quick-setting rubber with anti-seepage and insulating functions.

[0055] In detail, the thickness of the insulating layer 1 includes but is not limited to being configured to be 1 to 2 mm.

[0056] In such an embodiment, the insulating layer 1 above the top surface of the panel body 2 can effectively enhance the anti-seepage performance of the concrete panel for rockfill dams while improving the safety performance of the concrete panel structure for rockfill dams.

[0057] According to the embodiments of the present disclosure, Figure 1 As shown, the two electrodes 5 are constructed into a plate-like structure. The two electrodes 5 are arranged in parallel and spaced apart on both sides of the panel body 2 and are orthogonal to the extension direction of the bottom surface of the panel body 2.

[0058] In an illustrative embodiment, the electrode 5 includes but is not limited to being made of copper.

[0059] In detail, the two electrodes 5 are symmetrically arranged on both sides of the panel body 2 .

[0060] In an illustrative embodiment, the electrode 5 is electrically connected to an external power supply device via a predetermined wire.

[0061] In detail, the end of the wire away from the electrode 5 is led out from the interior of the panel body 2 to be connected to the circuit of the power supply device.

[0062] Figure 2 yes Figure 1 According to an embodiment of the present disclosure, as shown in FIG. Figure 2 As shown, the concrete panel for the rockfill dam further includes an electric cage 4 made of a material having a resistance value lower than that of the conductive concrete. The electric cage 4 is arranged between the two electrodes 5, and the interior of the electric cage 4 forms a shielding area.

[0063] According to the embodiments of the present disclosure, Figure 2 As shown, the electric cage 4 is constructed as a cubic structure. The two facing side walls of the electric cage 4 (such as Figure 2The left side wall and the right side wall shown in FIG. 1 are configured to extend in the direction of the electrode 5 (as shown in FIG. Figure 2 parallel to the vertical direction shown).

[0064] In an illustrative embodiment, Figure 2 As shown, the electric cage 4 includes an upper horizontal rib 43 , a lower horizontal rib 45 and a vertical rib 44 arranged between the upper horizontal rib 43 and the lower horizontal rib 45 .

[0065] In detail, the upper horizontal rib 43 is configured as a quadrilateral structure.

[0066] Furthermore, the lower horizontal ribs 45 are configured to be substantially the same quadrilateral structure as the upper horizontal ribs 43. The upper horizontal ribs 43 and the lower horizontal ribs 45 are configured to be parallel to each other.

[0067] Furthermore, a plurality of vertical ribs 44 are fixed between the upper horizontal ribs 43 and the lower horizontal ribs 45 in a direction perpendicular to the upper horizontal ribs 43 and the lower horizontal ribs 45 , so that the electric cage forms a substantially cubic structure.

[0068] In an illustrative embodiment, Figure 2 As shown, the electric cage 4 further includes a plurality of transverse ribs 41 and a plurality of longitudinal ribs 42 .

[0069] In detail, the transverse ribs 41 and the longitudinal ribs 42 are constructed into a well-shaped structure and are respectively disposed within a quadrilateral structure formed by the upper horizontal ribs 43 and the lower horizontal ribs 45 .

[0070] In this embodiment, because the resistance of the electric cage 4 is lower than that of the conductive concrete, and the potential at all locations within the electric cage 4 is equal, current flowing through the conductive concrete within the electric cage 4 is prevented from conducting, thus forming a shielded area. Furthermore, the electric cage supports the panel body 2, thereby improving the load-bearing capacity and structural strength of the concrete panel for rockfill dams.

[0071] Figure 3 yes Figure 1 The schematic diagram of the assembly state of the electric cage, electrodes and positioning parts of the exemplary embodiment shown is shown.

[0072] According to the embodiments of the present disclosure, Figure 3 As shown, the concrete panel for rockfill dam further includes a positioning member 6 detachably mounted between the electric cage 4 and the electrode 5 , so that the electrode 5 is maintained at a position perpendicular to the bottom surface of the panel body 2 .

[0073] In an exemplary embodiment, the positioning member 6 includes but is not limited to being made of a conductive material, such as steel.

[0074] In this embodiment, the positioning members 6 should be removed in due time during the casting of the panel body 2 to prevent the positioning members 6 remaining in the panel body 2 from connecting with the electrodes 5 and the electric cage 4 and causing a short circuit when the power is on.

[0075] In another exemplary embodiment, the positioning member 6 includes but is not limited to being made of insulating material, such as wood.

[0076] In such an embodiment, the positioning member 6 can be selectively retained in the panel body 2 , or the positioning member 6 can be removed at an appropriate time during the process of casting the panel body 2 .

[0077] Figure 4 yes Figure 3 A side view of an electrode of the illustrated exemplary embodiment is shown. Figure 5 yes Figure 4 An enlarged view of the through-hole of the electrode of the exemplary embodiment is shown. Figure 6 FIG. 6 is a side view of a radial perspective of a positioning member 6 according to an embodiment of the present disclosure. Figures 4 to 6 As shown, the electrode 5 is provided with a through hole 51, and an elastic spring 52 is provided on the inner edge of the through hole 51. The positioning member 6 is constructed as a cylindrical structure. One axial end of the positioning member 6 is detachably mounted on the side wall of the electric cage 4 facing the electrode 5. The other axial end of the positioning member 6 is provided with a groove 61 for engaging with the spring 52 to limit the position of the electrode 5 relative to the electric cage 4 in the assembled state.

[0078] In an illustrative embodiment, Figure 4 and Figure 5 As shown, the electrodes are constructed in a quadrilateral structure.

[0079] Further, such as Figure 4 As shown, the electrode 5 is arranged along the length direction (such as Figure 4 A plurality of through holes 51 are provided (in the left and right directions as shown).

[0080] In an illustrative embodiment, Figure 4 and Figure 5 As shown, the plurality of through holes 51 are configured to be arranged sequentially along the transverse and longitudinal directions of the electrode 5 .

[0081] Furthermore, each through hole 51 is provided with a plurality of reeds 52 at even intervals along the inner edge of the through hole 51. For example, the number of reeds 52 provided in each through hole 51 includes but is not limited to three.

[0082] In an exemplary embodiment, when the positioning member 6 is assembled with the electrode 5 and the cage, one axial end of the positioning member 6 (e.g. Figure 3 The left end shown in FIG) is tied to the vertical reinforcement 44, and the other axial end of the positioning member 6 (as shown in FIG) is tied to the vertical reinforcement 44. Figure 3 The groove 61 (as shown on the right end) passes through the through hole 51 for fixing to limit the position of the two electrodes 5 so that the positions of the two electrodes 5 are always perpendicular to the dam surface.

[0083] In this embodiment, spring 52 is elastically positioned within through-hole 51. When positioning member 6 is assembled, the deformation of spring 52 under pressure facilitates insertion and removal of positioning member 6. This helps control the position of positioning member 6 relative to electrode 5 before pouring, maintaining electrode 5 perpendicular to the dam surface. After positioning member 6 is removed from through-hole 51, during pouring, the conductive concrete establishes contact with through-hole 51 and spring 52, ensuring a tighter connection between electrode 5 and the conductive concrete and a certain degree of adaptability to deformation.

[0084] Figure 7 The present invention is a flowchart of a method for casting a concrete panel for a rockfill dam according to an embodiment of the present disclosure.

[0085] According to the embodiment of the present disclosure, a method for casting a concrete panel for a rockfill dam is provided, such as Figure 7 as well as Figure 1-3 Shown, including:

[0086] S110: pouring foamed mortar on the dam surface of the rockfill dam to form a protective layer 3;

[0087] S120: inserting the lower ends of the plurality of vertical bars into the protective layer 3 in a direction perpendicular to the dam surface, and building an electric cage 4 based on the vertical bars 44;

[0088] S130: symmetrically install two electrodes 5 on opposite sides of the outside of the electric cage 4, and insert the lower ends of the two electrodes 5 into the protective layer 3 in a direction perpendicular to the dam surface;

[0089] S140: Installing a positioning member 6 between the electric cage 4 and the electrode 5 to limit the position of the upper end of the electrode 5 relative to the electric cage 4 so that the electrode 5 remains perpendicular to the dam surface;

[0090] S150: pouring conductive concrete until the conductive concrete reaches the required thickness of the panel body 2;

[0091] S160: Apply liquid quick-setting rubber to the upper surface of the panel body 2 to form an insulating layer 1.

[0092] According to an embodiment of the present disclosure, step S150 : pouring conductive concrete until the conductive concrete reaches the required thickness of the panel body 2 includes steps S151 and S152 .

[0093] Step S151: pouring conductive concrete until the electrode 5 is fixed relative to the dam surface by the conductive concrete and the positioning member 6 is not submerged, and then removing the positioning member 6;

[0094] Step S152: Continue pouring the conductive concrete until the required thickness of the panel body 2 is reached.

[0095] In an illustrative embodiment, in step S120, the electric cage 4 is constructed based on the vertical reinforcement 44 to tie the lower horizontal reinforcement 45 and the upper horizontal reinforcement 43 from bottom to top, and the joints are single-sided welded using 10d (characterized by the weld being ten times the length of the steel bar diameter d).

[0096] Furthermore, during construction, the specifications, types, spacing, and concrete cover should meet design requirements, and the welds should be full, smooth, and free of pores and slag inclusions. Furthermore, the upper horizontal reinforcement 43 and the lower horizontal reinforcement 45 should be assembled in the same manner.

[0097] The above embodiments describe the present disclosure in detail, but the present disclosure is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, changes can be made without departing from the purpose of the present disclosure. The panel body 2 located between the two electrodes 5 is provided with a shielding area. If the structure of the electric cage 4 is not used for covering, the shielding area can also be hollowed out, and conductive concrete can be poured outside the shielding area. Current can be generated in the area outside the shielding area, so that the panel body 2 is connected to the external circuit.

[0098] The present disclosure also provides another embodiment, in which the panel body 2 located between the two electrodes 5 is provided with a shielding area. If the structure of the electric cage 4 is not used for covering, non-conductive concrete can also be poured, and conductive concrete can be poured outside the area of the shielding area. The two pourings are performed so that current can be formed in the area outside the shielding area, so that the panel body 2 is connected to the external circuit.

[0099] It should also be noted that directional terms such as "upper," "lower," "front," "back," "left," and "right" mentioned in the embodiments are merely references to the directions in the accompanying drawings and are not intended to limit the scope of protection of this disclosure. Throughout the drawings, identical elements are represented by identical or similar reference numerals. Conventional structures or configurations will be omitted where they may cause confusion in understanding this disclosure.

[0100] The embodiments of the present disclosure are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although each embodiment has been described separately above, this does not mean that the measures in each embodiment cannot be used in combination to advantage. The scope of the present disclosure is defined by the appended claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. An active antifreeze concrete panel for rockfill dam, characterized in that: The panel body (2) comprises a panel body (2) made of conductive concrete, two electrodes (5) electrically connected to an external circuit are provided inside the panel body (2), a shielding area is provided on the panel body (2) located between the two electrodes (5), and the panel body (2) is configured to form a current in an area between the two electrodes (5) and outside the shielding area, so that the panel body (2) is connected to the external circuit; It also includes an electric cage (4) made of a material having a resistance value smaller than that of the conductive concrete, the electric cage (4) being arranged between the two electrodes (5), and the interior of the electric cage (4) forming the shielding area; The two electrodes (5) are configured as plate-like structures. The two electrodes (5) are arranged in parallel and spaced apart on both sides of the panel body (2) and are orthogonal to the extension direction of the bottom surface of the panel body (2). The electric cage (4) is configured as a cubic structure. The two facing side walls of the electric cage (4) are configured to be parallel to the extension direction of the electrodes (5).

2. The active antifreeze concrete panel for rockfill dam according to claim 1, characterized in that: It also includes a positioning member (6) that is detachably mounted between the electric cage (4) and the electrode (5), so that the electrode (5) is maintained at a position perpendicular to the bottom surface of the panel body (2).

3. The active antifreeze concrete panel for rockfill dam according to claim 2, characterized in that: The electrode (5) is provided with a through hole (51), and an elastic spring (52) is provided at the inner edge of the through hole (51); The positioning member (6) is configured as a columnar structure, one axial end of the positioning member (6) is detachably mounted on a side wall of the electric cage (4) facing the electrode (5), and the other axial end of the positioning member (6) is provided with a groove (61) for engaging with the reed (52), so as to limit the position of the electrode (5) relative to the electric cage (4) in an assembled state.

4. The active antifreeze concrete panel for rockfill dam according to any one of claims 1 to 3, characterized in that: It also includes a protective layer (3) formed below the bottom surface of the panel body (2) to block at least a portion of the heat released by the panel body (2).

5. The active antifreeze concrete panel for rockfill dam according to any one of claims 1 to 3, characterized in that: It also includes an insulating layer (1) arranged above the top surface of the panel body (2) to insulate the panel body (2) from the outside.

6. A method for casting a concrete panel for an active frost-resistant rockfill dam according to any one of claims 1 to 5, characterized in that: include: Pouring foamed mortar on the dam surface to form a protective layer (3); Inserting the lower ends of a plurality of vertical bars into the protective layer (3) along a direction perpendicular to the dam surface, and building an electric cage (4) based on the vertical bars; Two electrodes (5) are symmetrically mounted on opposite sides of the exterior of the electric cage (4), and the lower ends of the two electrodes (5) are inserted into the protective layer (3) along a direction perpendicular to the dam surface; A positioning member (6) is installed between the electric cage (4) and the electrode (5) to limit the position of the upper end of the electrode (5) relative to the electric cage (4), so that the electrode (5) remains in a state perpendicular to the dam surface; pouring conductive concrete until the conductive concrete reaches the required thickness of the panel body (2); and Liquid quick-setting rubber is applied to the upper surface of the panel body (2) to form an insulating layer (1).

7. The method for casting concrete panels for active frost resistance rockfill dams according to claim 6, characterized in that: The pouring of the conductive concrete until the conductive concrete reaches the required thickness of the panel body (2) includes: Casting the conductive concrete until the electrode (5) is fixed relative to the dam surface by the conductive concrete and the positioning member (6) is not submerged, and then removing the positioning member (6); and Continue pouring the conductive concrete until the required thickness of the panel body (2) is reached.

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