Pile foundation structure for power construction

Abstract

The invention discloses a pile foundation structure for power construction, and relates to the technical field of pile foundations. The device comprises a pile body which is vertically buried in a frozen soil layer, the top of the pile body is connected with a first circular plate, and a plurality of heat conduction fins connected with the first circular plate are annularly distributed on the peripheral side of the pile body. Through the cooperative design of the cooling device and the heat conduction fins, when the air temperature of the frozen soil layer rises, the first circular plate can be cooled through the cooling device, and the frozen soil layer is cooled through the heat conduction fins, so that the frozen soil layer in the foundation pit can be kept in a frozen state throughout the year, and the fixing effect of the frozen soil layer on the pile body is improved; compared with the prior art, the pile body does not need to be buried in the permanent frost layer, the requirement for the excavation depth is low, the construction difficulty of the pile foundation structure is low, and the beneficial effect of facilitating construction is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of pile foundations, and in particular to a pile foundation structure for electric power construction. Background Art

[0002] Affected by global warming and human engineering activities, the freeze-thaw process in permafrost areas has intensified, the temperature of permafrost has risen, the upper limit of permafrost has dropped, and the water in the pores of permafrost has undergone phase change and migration with the temperature change. This change causes the soil to undergo reciprocating frost heave, thaw and sink, constantly changing the pores of the permafrost and the connection between soil particles, resulting in huge changes in the soil structure. This process has seriously reduced the mechanical properties of the soil in the permafrost area, affected the stability of the pile foundation buried below the permafrost line, caused unbalanced force on the pile foundation, caused the electric pole to tilt, and in severe cases, caused accidents such as the toppling of transmission poles (frozen pull phenomenon).

[0003] For example, the invention with the existing patent publication number CN118187125A discloses a pile foundation structure that is frost-proof. The pile body and the pile bottom are connected together by a locking structure, and then the pile foundation is buried in the frozen soil area, and the connection between the pile body and the pile bottom is released by the locking structure. When the pile body is lifted by freezing in the freezing season, the first drilling depth structure and the second drilling depth structure are triggered to extend and insert into the surrounding frozen soil area to further fix the pile bottom in the permafrost layer, and then the pile body is pulled by the pile bottom to prevent the pile foundation from being pulled out and becoming unstable, thereby improving the stability of the pile foundation in the frozen soil. However, in actual use, due to the high hardness of the frozen soil layer (located on the surface, the frozen soil melts in summer every year and freezes in winter), it is difficult to dig, and in the above technical solution, the pile body needs to be buried in the permafrost layer (located at the bottom of the frozen soil layer, which is in a frozen state all year round), the excavation depth requirement is high, and the construction of the pile foundation structure is difficult and inconvenient due to the influence of environmental factors. In order to reasonably improve this problem, the present application proposes a pile foundation structure for power construction. Summary of the invention

[0004] The purpose of the present application is to solve the technical problems that the permafrost layer has a high hardness and is difficult to excavate. In the prior art, the pile foundation structure needs to be buried in the permafrost layer, which requires a high excavation depth and is affected by environmental factors, resulting in great difficulty in the construction of the pile foundation structure and inconvenience in construction. The present application provides a pile foundation structure for power construction.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A pile foundation structure for electric power construction, comprising: The pile body is vertically buried in the frozen soil layer, the top of the pile body is connected to a first circular plate, and a plurality of heat-conducting fins connected to the first circular plate are distributed in an annular manner around the pile body; A second circular plate is connected to the first circular plate through a connecting assembly, and a mounting seat is configured on the top of the second circular plate; A cooling device is provided on the second circular plate, and the first circular plate can be cooled by the cooling device; The heat-insulating layer is arranged between the first circular plate and the second circular plate, and the heat transfer between the frozen soil layer and the outside world can be reduced through the heat-insulating layer; The positioning component is arranged on the pile body, and the pile body can be fixed by the positioning component.

[0006] Furthermore, the cooling device includes a first tube body constructed at the bottom of the second circular plate, the first tube body is filled with liquid ammonia, a hemisphere is constructed at the bottom of the first tube body, a hemispherical groove for accommodating the hemisphere is constructed at the top of the first circular plate, a plurality of connecting tubes are distributed in a ring around the first tube body, the ends of the connecting tubes all pass through the top of the second circular plate and are connected to the second tube body, and an annular fin is linearly arrayed on the outer side of the second tube body.

[0007] Furthermore, the connecting assembly includes a circular groove constructed on the top of the first circular plate, the hemispherical groove is located in the circular groove, two semicircular plates are fixed in the circular groove by a bolt assembly, the two semicircular plates cover the hemispherical groove, the semicircular plates are connected to arc plates, the arc plates are in contact with and overlap the outer side of the first tube body, and the top of the semicircular plate is connected to the bottom of the second circular plate through a connecting plate.

[0008] Furthermore, the hemispherical groove is filled with low-temperature heat transfer oil.

[0009] Furthermore, a valve is installed on the second tube body, and a first annular plate and a second annular plate are respectively constructed on the connecting pipe and the second tube body, a sealing gasket is provided on the first annular plate, and the first annular plate and the second annular plate are connected by a plurality of flange bolts.

[0010] Furthermore, the second tube body is Y-shaped, annular fins are provided on the outer sides of the two forked ends of the second tube body, and the valve is installed on the second tube body.

[0011] Furthermore, an annular groove is configured on the outer side of the mounting seat, and a plurality of limiting members are movably provided in the annular groove, and the movement of the second tube body can be limited by the limiting members.

[0012] Furthermore, the limiting member includes two movable blocks slidably arranged in the annular groove, and the movable blocks are connected to limiting plates. The two limiting plates are cooperatively constructed with an arc groove, the bottom of the limiting plate is in contact with and overlaps the top of the second annular plate, and the arc groove is in contact with and overlaps the outer side of the second tube body.

[0013] Furthermore, the positioning assembly includes a rotating rod rotatably installed in the pile body, the end of the rotating rod passes through the hemispherical groove and is provided with a hexagonal groove, the bottom of the pile body is slidably fitted with a sleeve, the bottom of the sleeve is constructed with a pointed cone, the end of the rotating rod is threadedly fitted with the sleeve, a plurality of plug rods are distributed on the circumference of the pile body in an up-and-down staggered manner, the plurality of plug rods are distributed in a ring along the axis of the pile body, and are all hinged to the pile body, a plurality of through grooves for passing the plug rods are provided on the outside of the sleeve, and the plug rods overlap and contact with the inner walls of the through grooves.

[0014] Furthermore, the thermal insulation layer comprises a mineral wool layer and a concrete layer, the mineral wool layer is arranged on the top of the first circular plate, and the concrete layer is arranged on the top of the mineral wool layer.

[0015] The beneficial effects of this application are as follows: The present application adopts a coordinated design of a cooling device and heat-conducting fins. When the temperature of the permafrost layer rises, the first circular plate can be cooled by the cooling device, and the permafrost layer can be cooled by the heat-conducting fins, so that the permafrost layer in the foundation pit can remain frozen all year round, so as to improve the fixing effect of the permafrost layer on the pile body. Compared with the prior art, the pile body does not need to be buried in the permafrost layer, the requirement for excavation depth is lower, the construction difficulty of the pile foundation structure is low, and it has the advantage of being easy to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of this application; Figure 2 It is a schematic diagram of the partial three-dimensional structure of this application; Figure 3 This application Figure 2 Structural cross-sectional view of Figure 4 This application Figure 3 A magnified image of point A; Figure 5 This application Figure 3 A magnified view of point B; Figure 6 This application Figure 3 Enlarged view of point C; Figure 7 This application Figure 3 The enlarged view of point D; Figure 8 It is a schematic diagram of the structure of the positioning component of the present application; Fig. 9 is a structural cross-sectional view of the second circular plate of the present application; Fig.10 This application Fig. 9 The enlarged view of point E; Figure numerals: 1, pile body; 2, frozen soil layer; 3, first circular plate; 4, heat-conducting fins; 5, second circular plate; 6, connecting assembly; 601, circular groove; 602, semicircular plate; 603, arc plate; 604, connecting plate; 605, bolt assembly; 7, mounting seat; 8, cooling device; 801, first tube body; 802, hemispherical body; 803, hemispherical groove; 804, connecting pipe; 805, second tube body; 806, annular fins; 9, insulation layer; 9 01, mineral wool layer; 902, concrete layer; 10, positioning assembly; 1001, rotating rod; 1002, hexagonal groove; 1003, sleeve; 1004, pointed cone; 1005, plug rod; 1006, through groove; 11, valve; 12, first annular plate; 13, second annular plate; 14, sealing gasket; 15, flange bolt; 16, annular groove; 17, limit piece; 1701, movable block; 1702, limit plate; 1703, arc groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0018] like Figure 1-Figure 10 As shown, a pile foundation structure for power construction proposed in one embodiment of the present application includes: The pile body 1 is vertically buried in the frozen soil layer 2. After the foundation pit is dug, a vertical pile hole is drilled in the foundation pit, and the pile body 1 is vertically inserted into the pile hole. The top of the pile body 1 is connected to a first circular plate 3. A plurality of heat-conducting fins 4 connected to the first circular plate 3 are distributed in an annular manner around the pile body 1. The heat-conducting fins 4 are made of copper-aluminum alloy and have the advantage of good heat conduction effect. The heat-conducting fins 4 are in the shape of a right triangle, and two right-angled faces thereof are respectively connected to the first circular plate 3 and the pile body 1. The heat-conducting fins 4 are inserted into the frozen soil layer 2 to absorb the heat of the frozen soil layer 2. The second circular plate 5 is connected to the first circular plate 3 through a connecting assembly 6. The second circular plate 5 is parallel to the first circular plate 3. The second circular plate 5 is located on the ground surface and is spaced apart from the top of the first circular plate 3. A mounting seat 7 is constructed on the top of the second circular plate 5. The mounting seat 7 can fix the power equipment. The cooling device 8 is provided on the second circular plate 5. The first circular plate 3 can be cooled by the cooling device 8. The heat absorbed by the heat-conducting fins 4 can be transferred to the second circular plate 5, and the second circular plate 5 can be cooled by the cooling device 8. The heat-insulating layer 9 is disposed between the first circular plate 3 and the second circular plate 5, and the heat transfer between the frozen soil layer 2 and the outside world can be reduced through the heat-insulating layer 9; A positioning assembly 10 is provided on the pile body 1, and the pile body 1 can be fixed by the positioning assembly 10; In summer, when the temperature rises, the heat transfer between the frozen soil layer 2 and the outside world is first reduced by the heat insulation layer 9, so that the frozen soil layer 2 in the foundation pit is not easily affected by the external environment, and then the first circular plate 3 is cooled by the cooling device 8, and the frozen soil layer 2 is cooled by the heat conducting fins 4, so that the frozen soil layer 2 in the foundation pit can remain frozen all year round, so as to improve the fixing effect of the frozen soil layer 2 on the pile body 1, and finally the pile body 1 can be firmly fixed by the positioning assembly 10; The present application adopts a coordinated design of a cooling device 8 and a heat-conducting fin 4. When the temperature of the frozen soil layer 2 rises, the first circular plate 3 can be cooled by the cooling device 8, and the frozen soil layer 2 can be cooled by the heat-conducting fin 4, so that the frozen soil layer 2 in the foundation pit can remain frozen all year round, so as to improve the fixing effect of the frozen soil layer 2 on the pile body 1. Compared with the prior art, the pile body 1 does not need to be buried in the permafrost layer, the requirement for excavation depth is lower, the construction difficulty of the pile foundation structure is low, and it has the advantage of being easy to construct.

[0019] like Figure 3 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, in some embodiments, the cooling device 8 includes a first tube body 801 constructed at the bottom of the second circular plate 5, and the first tube body 801 is filled with liquid ammonia. The liquid ammonia will vaporize at a temperature greater than -33.5 degrees. A hemispherical body 802 is constructed at the bottom of the first tube body 801. Under normal conditions, the liquid ammonia can be located in the hemispherical body 802. The top of the first circular plate 3 is cooperatively constructed with a hemispherical groove 803 for accommodating the hemispherical body 802, that is, the hemispherical body 802 is in conflict with the hemispherical groove 803. A plurality of connecting pipes 804 are distributed in an annular manner around the first tube body 801. The ends of the connecting pipes 804 all pass through the top of the second circular plate 5 and are connected to the second tube body 805. The second tube body 805 is located at the top of the second circular plate 5 and is connected to the second tube body 805 through the connecting pipe 804. The connecting pipe 804 is connected to the first tube body 801, and the linear array outside the second tube body 805 is provided with annular fins 806. When the temperature of the frozen soil layer 2 rises, the heat on the heat-conducting fins 4 and the first circular plate 3 will be transferred to the hemisphere 802. When the hemisphere 802 is heated and the temperature rises to more than -33.5 degrees, the liquid ammonia is converted from liquid to gas and enters the second tube body 805 through the connecting pipe 804, and the heat of the second tube body 805 is transferred to the air through the annular fins 806. When the temperature of the gaseous ammonia drops and is lower than the boiling point, it condenses into liquid ammonia and flows back to the first tube body 801 under the action of gravity. The heat of the frozen soil layer 2 is transferred to the air through such a cyclic state conversion.

[0020] like Figure 3 , Figure 5 and Figure 8As shown, in some embodiments, the connecting assembly 6 includes a circular groove 601 constructed on the top of the first circular plate 3, the hemispherical groove 803 is located in the circular groove 601 and in the middle of the circular groove 601, and two semicircular plates 602 are fixed in the circular groove 601 by a bolt assembly 605, and the two semicircular plates 602 cover the hemispherical groove 803, and the semicircular plates 602 are connected to arc plates 603, and the arc plates 603 are in contact with and overlap the outer side of the first tube body 801. The two arc plates 603 can be assembled into a tube body, and the top of the semicircular plate 602 is connected to the bottom of the second circular plate 5 through a connecting plate 604. By adopting such a design, while fixing the first circular plate 3 and the second circular plate 5, the hemispherical groove 803 can also be covered by the two semicircular plates 602 and the arc plates 603, so that the thermal insulation layer 9 is not easy to squeeze the hemispherical body 802.

[0021] like Figure 3 , Figure 5 and Figure 8 As shown, in some embodiments, the hemispherical groove 803 is filled with low-temperature heat transfer oil, which is specifically paratherm synthetic heat transfer oil, and its operating temperature range is -75 degrees to 230 degrees. It will not freeze in the frozen soil layer 2. The low-temperature heat transfer oil can increase the contact area between the hemispherical groove 803 and the hemisphere 802, thereby improving its heat conduction effect.

[0022] like Figure 3 and Figure 7 As shown, in some embodiments, a valve 11 is installed on the second pipe body 805, and the valve 11 is a special gate valve for liquid ammonia. A first annular plate 12 and a second annular plate 13 are respectively constructed on the connecting pipe 804 and the second pipe body 805. The first annular plate 12 is located at the top of the connecting pipe 804, and the second annular plate 13 is located at the bottom of the second pipe body 805. A sealing gasket 14 is provided on the first annular plate 12, and the sealing gasket 14 is located at the top of the first annular plate 12. The sealing gasket 14 is made of hydrogenated nitrile rubber, which is resistant to high pressure and ammonia corrosion. The first annular plate 12 and the second annular plate 13 are connected by multiple flange bolts 15. After the construction is completed, multiple second pipe bodies 805 are connected to multiple connecting pipes 804, and the valve 11 is opened to allow multiple pipes to be connected through the first pipe body 801. The advantage of this design is that the second pipe body 805 is not easily damaged during construction.

[0023] like Figure 1-Figure 3 As shown, in some embodiments, the second tube body 805 is Y-shaped, and annular fins 806 are provided on the outer sides of the two forked ends of the second tube body 805. The valve 11 is installed on the second tube body 805, thereby increasing the heat dissipation area of ​​the second tube body 805 and improving its cooling effect on ammonia.

[0024] like Fig. 9 and Fig.10As shown, in some embodiments, an annular groove 16 is constructed on the outer side of the mounting seat 7, and a plurality of limit members 17 are movably provided in the annular groove 16. The movement of the second tube body 805 can be limited by the limit members 17. The number of the limit members 17 is consistent with the number of the second tube bodies 805. The limit members 17 reduce the stress on the plurality of flange bolts 15, thereby improving the fixing effect of the first annular plate 12 and the second annular plate 13.

[0025] like Fig. 9 and Fig.10 As shown, in some embodiments, the limiting member 17 includes two movable blocks 1701 slidably arranged in the annular groove 16, the movable blocks 1701 can slide in an arc shape in the annular groove 16, and the movable blocks 1701 are connected to the limiting plates 1702, and the limiting plates 1702 extend in a direction away from the annular groove 16. The two limiting plates 1702 are cooperatively constructed with an arc groove 1703, and the bottom of the limiting plate 1702 is in contact with the top of the second annular plate 13, and the arc groove 1703 is in contact with the outer side of the second tube body 805. After the annular plate 12 and the second annular plate 13 are aligned, the two limit plates 1702 can be rotated along the axis of the annular groove 16, and then the arc grooves 1703 on the two limit plates 1702 can clamp the circumference of the second tube body 805, and then the first annular plate 12 and the second annular plate 13 can be fixed by multiple flange bolts 15. At this time, the two limit plates 1702 cannot rotate due to the cooperation of the second tube body 805 and the flange bolts 15, so that the movement of the second tube body 805 can be limited by the two limit plates 1702.

[0026] like Figure 3 , Figure 4 , Figure 6 and Figure 8As shown, in some embodiments, the positioning assembly 10 includes a rotating rod 1001 rotatably installed in the pile body 1, the end of the rotating rod 1001 passes through the hemispherical groove 803 and is provided with a hexagonal groove 1002, the bottom of the pile body 1 is slidably matched with a sleeve 1003, the bottom of the sleeve 1003 is configured with a pointed cone 1004, the end of the rotating rod 1001 is threadedly matched with the sleeve 1003, after the pile body 1 is fixed, a tool can be inserted into the hexagonal groove 1002, and the rotating rod 1001 can be driven to rotate, thereby driving the sleeve 1003 to move, a plurality of plugging rods 1005 are distributed on the circumference of the pile body 1 in an up-and-down staggered manner, and the plurality of plugging rods 1005 are distributed in a ring along the axis of the pile body 1, and They are all hinged to the pile body 1. A plurality of through grooves 1006 for passing the insertion rods 1005 are provided on the outer side of the sleeve 1003. The insertion rods 1005 are in contact with and overlap the inner walls of the through grooves 1006. When the sleeve 1003 is in the storage state, the plurality of insertion rods 1005 are pressed against the outer side of the pile body 1 under the contact of the through grooves 1006, so that the pile body 1 is inserted into the pile hole easily. When the rotating rod 1001 rotates, the sleeve 1003 can be driven to move downward. At this time, the pointed cone 1004 can penetrate the frozen soil layer 2, and the plurality of insertion rods 1005 can rotate along the hinge point under the contact of the inner wall of the through grooves 1006, and be stuck in the pile hole in the shape of a barb, thereby improving the fixing effect of the pile body 1.

[0027] like Figure 1 As shown, in some embodiments, the insulation layer 9 includes a mineral wool layer 901 and a concrete layer 902. The mineral wool layer 901 is arranged on the top of the first circular plate 3. The mineral wool layer 901 is paved with mineral wool, located on the top of the first circular plate 3, and covers the foundation pit, which has the advantage of good insulation effect. The concrete layer 902 is arranged on the top of the mineral wool layer 901. The concrete layer 902 is poured with concrete. The concrete layer 902 covers the foundation pit and is coplanar with the surface of the frozen soil layer 2.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pile foundation structure for power construction, characterized in that: include: The pile body (1) is vertically buried in the frozen soil layer (2); the top of the pile body (1) is connected to a first circular plate (3); and a plurality of heat-conducting fins (4) connected to the first circular plate (3) are distributed in an annular manner around the pile body (1); A second circular plate (5) connected to the first circular plate (3) via a connecting assembly (6), wherein a mounting seat (7) is formed on the top of the second circular plate (5); A cooling device (8) is disposed on the second circular plate (5), and the first circular plate (3) can be cooled by the cooling device (8); A heat-insulating layer (9) is disposed between the first circular plate (3) and the second circular plate (5), and the heat-insulating layer (9) can reduce heat transfer between the frozen soil layer (2) and the outside world; The positioning component (10) is arranged on the pile body (1), and the pile body (1) can be fixed by the positioning component (10).

2. The pile foundation structure for power construction according to claim 1, characterized in that: The cooling device (8) comprises a first tube body (801) constructed at the bottom of the second circular plate (5), the first tube body (801) is filled with liquid ammonia, a hemispherical body (802) is constructed at the bottom of the first tube body (801), a hemispherical groove (803) for accommodating the hemispherical body (802) is constructed at the top of the first circular plate (3), a plurality of connecting tubes (804) are distributed in an annular manner around the first tube body (801), the ends of the connecting tubes (804) all pass through the top of the second circular plate (5) and are connected to the second tube body (805), and an annular fin (806) is arranged in a linear array on the outer side of the second tube body (805).

3. The pile foundation structure for power construction according to claim 2, characterized in that: The connection assembly (6) comprises a circular groove (601) constructed on the top of the first circular plate (3), a hemispherical groove (803) located in the circular groove (601), two semicircular plates (602) fixed in the circular groove (601) via a bolt assembly (605), the two semicircular plates (602) covering the hemispherical groove (803), the semicircular plates (602) are both connected to an arc plate (603), the arc plate (603) is in contact with and overlaps the outer side of the first tube body (801), and the top of the semicircular plate (602) is connected to the bottom of the second circular plate (5) via a connecting plate (604).

4. The pile foundation structure for power construction according to claim 3, characterized in that: The hemispherical groove (803) is filled with low-temperature heat transfer oil.

5. The pile foundation structure for power construction according to claim 2, characterized in that: A valve (11) is installed on the second tube body (805); a first annular plate (12) and a second annular plate (13) are respectively constructed on the connecting tube (804) and the second tube body (805); a sealing gasket (14) is provided on the first annular plate (12); and the first annular plate (12) and the second annular plate (13) are connected via a plurality of flange bolts (15).

6. The pile foundation structure for power construction according to claim 5, characterized in that: The second tube body (805) is Y-shaped, and annular fins (806) are provided on the outer sides of the two bifurcated ends of the second tube body (805). The valve (11) is installed on the second tube body (805).

7. The pile foundation structure for power construction according to claim 6, characterized in that: An annular groove (16) is formed on the outside of the mounting seat (7), and a plurality of limiting members (17) are movably provided in the annular groove (16), and the movement of the second tube body (805) can be limited by the limiting members (17).

8. The pile foundation structure for power construction according to claim 7, characterized in that: The limiting member (17) comprises two movable blocks (1701) slidably arranged in the annular groove (16); the movable blocks (1701) are both connected to limiting plates (1702); the two limiting plates (1702) are cooperatively constructed with an arc groove (1703); the bottom of the limiting plate (1702) is in contact with and overlaps the top of the second annular plate (13); and the arc groove (1703) is in contact with and overlaps the outer side of the second tube body (805).

9. The pile foundation structure for power construction according to claim 4, characterized in that: The positioning assembly (10) comprises a rotating rod (1001) rotatably mounted in the pile body (1), the end of the rotating rod (1001) passing through the hemispherical groove (803) and provided with a hexagonal groove (1002), the bottom of the pile body (1) being slidably matched with a sleeve (1003), the bottom of the sleeve (1003) being structured with a pointed cone (1004), the end of the rotating rod (1001) being threadedly matched with the sleeve (1003), a plurality of insertion rods (1005) being distributed vertically staggered around the pile body (1), the plurality of insertion rods (1005) being distributed in an annular manner along the axis of the pile body (1) and being hinged to the pile body (1), a plurality of through grooves (1006) for passing the insertion rods (1005) being provided on the outer side of the sleeve (1003), the insertion rods (1005) being in contact and overlapped with the inner walls of the through grooves (1006).

10. The pile foundation structure for power construction according to claim 1, characterized in that: The thermal insulation layer (9) comprises a mineral wool layer (901) and a concrete layer (902); the mineral wool layer (901) is arranged on the top of the first circular plate (3), and the concrete layer (902) is arranged on the top of the mineral wool layer (901).

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