Cantilever pile reinforcing structure for slope substation

Abstract

The utility model belongs to the technical field of substation pile foundation reinforcement, specifically relates to a kind of cantilever pile reinforcement structure of side slope substation, it includes the cantilever pile of burying in the side slope soil body, multiple cantilever piles are distributed along the horizontal direction of the height variation of side slope;Cantilever pile upper end protrudes side slope slope face and forms cantilever section;It further includes hoop, connecting rod, bracing rod and fixed base;Hoop is connected in the cantilever section outside of cantilever pile, the hoop on the two cantilever piles of being close to is connected by connecting rod and forms fixed assembly, and connecting rod is parallel to horizontal plane;Fixed base is fixedly installed on the side slope of cantilever pile upside or downside, and one end of bracing rod is connected on the connecting rod of fixed assembly, and the other end of bracing rod is connected on fixed base.Multiple cantilever sections of cantilever pile are mutually pulled and supported and form integral structure, and external force received by cantilever pile is dispersed to side slope, improve cantilever pile strength, improve the stability of cantilever pile and the security of entire substation.

Description

Technical Field

[0001] This utility model belongs to the field of substation pile foundation reinforcement technology, specifically relating to a cantilever pile reinforcement structure for slope substations. Background Technology

[0002] As the core hub for energy transmission and distribution in power engineering, the location of substations is often limited by factors such as power grid planning and terrain conditions. Some substations are built on natural or artificially excavated slopes, where the stability of the slope soil directly affects the safety of the substation infrastructure. The foundations of equipment and buildings within these substations utilize rotary-dug cast-in-place piles cast into the slope soil. These piles typically have a diameter of approximately 600mm, which is relatively small.

[0003] When encountering continuous heavy rainfall or severe weather, the drainage efficiency of the temporary drainage system at the slope substation may decrease due to insufficient capacity or untimely maintenance. Large amounts of rainwater will continuously seep into the slope soil, increasing its weight and reducing the cohesion between soil particles, easily causing disturbance to the slope soil and rock, ultimately leading to slope instability and collapse. During this process, soil loss around some pile foundations within the substation cantilever piles expose the upper ends of the piles. Once the cantilever section of the cantilever pile loses soil support, its shear and bending strength decreases. If timely and effective reinforcement measures are not taken, the cantilever piles are prone to tilting and displacement over time, affecting the overall strength of the pile foundation and the safety of the substation. Therefore, timely reinforcement of the cantilever piles is necessary. Currently, pile foundation reinforcement is mainly achieved through methods such as increasing pile diameter and grouting the pile sides. However, these methods are mostly applicable to buried piles where the pile foundation is not exposed and cannot be directly applied to cantilever piles. Some projects have attempted to use steel pipe bracing to temporarily support the cantilever section of the cantilever pile. The lower end of the steel pipe is in contact with the slope soil, and the upper end of the steel pipe is in contact with or connected to the surface of the pile. However, the steel pipe is also prone to tilting and failure due to the impact of water flow and soil. Therefore, the stability of the cantilever pile support structure is poor and it is difficult to meet the safety requirements of substations. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cantilever pile reinforcement structure for slope substations, which strengthens the integrity of multiple cantilever piles in slope substations and provides them with support, improves the strength and impact resistance of the cantilever piles, and improves the safety and reliability of slope substations.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a cantilever pile reinforcement structure for a slope substation, including multiple cantilever piles buried in the slope soil, the multiple cantilever piles being distributed along the horizontal direction of the slope height change; the upper end of each cantilever pile protrudes from the slope surface to form a cantilever section; it also includes a hoop, connecting rod, bracing rod and fixing seat;

[0006] The ferrule is fitted onto the outside of the cantilever section of the cantilever pile. The ferrules on two adjacent cantilever piles are connected by a connecting rod to form a fixing assembly. The connecting rod is parallel to the horizontal plane. The fixing seat is fixedly installed on the slope above or below the cantilever pile. One end of the bracing rod is connected to the connecting rod of the fixing assembly, and the other end of the bracing rod is connected to the fixing seat.

[0007] Furthermore, the hoop includes a first hoop seat and a second hoop seat, the first hoop seat and the second hoop seat are symmetrically distributed on both sides of the cantilever section and each has a hoop connection groove. The cross-section of the hoop connection groove is an arc-shaped structure adapted to the shape and size of the outer wall of the cantilever section, and the central angle corresponding to the hoop connection groove is within 180°.

[0008] The hoop joint slots on the first hoop and the second hoop are opposite to each other and arranged coaxially. The first hoop and the second hoop are fastened together by bolts. The cantilever section is located in the hoop joint slots of the first hoop and the second hoop and is in contact with the bottom wall and side wall of the hoop joint slot.

[0009] Furthermore, the first hoop seat has a first screw welded on both sides, arranged along the depth direction of the hoop groove. The second hoop seat has a limiting through hole on both sides, with the axis arranged along the depth direction of the hoop groove. The first screw passes through the limiting through hole and is threaded with a first fastening nut. The fastening nut is located on the side of the second hoop seat away from the first hoop seat and abuts against the second hoop seat.

[0010] Furthermore, multiple sets of hoops are provided on the cantilever section of a single cantilever pile, and the multiple sets of hoops are evenly distributed along the axial direction of the cantilever pile.

[0011] Furthermore, both ends of the connecting rod are provided with connecting through holes, and the connecting rod is located on the side of the second hoop away from the first hoop; the first screw passes through the connecting through hole, and the first fastening nut is located on the side of the connecting rod away from the first hoop and abuts against the connecting rod;

[0012] The connecting rod is also provided with a second screw arranged in a horizontal direction. The second screw penetrates the connecting rod vertically. Two first limiting sleeves are threadedly connected to the second screw. The two first limiting sleeves are distributed on both sides of the connecting rod. The end of the second screw protrudes from the end face of the first limiting sleeve.

[0013] Furthermore, the bracing rod includes a diagonal bracing rod, which includes a first diagonal rod and a second diagonal rod arranged coaxially at intervals. The first diagonal rod is connected to the connecting rod, and the second diagonal rod is connected to the fixed base.

[0014] A length-adjusting screw is welded parallel to one side of the first inclined rod, and the length-adjusting screw protrudes from the first inclined rod towards the second inclined rod; a lug is provided on one side of the second inclined rod, and a mounting through hole is provided on the lug, which is coaxially arranged with the length-adjusting screw, and the length-adjusting screw is located in the mounting through hole and passes through the lug; a first limiting nut and a second limiting nut are threadedly connected to the length-adjusting screw, and the first limiting nut and the second limiting nut are distributed on both sides of the lug and clamp the lug along the axial direction of the length-adjusting screw.

[0015] Furthermore, the connecting rod is provided with a second screw arranged in a horizontal direction. The second screw penetrates the connecting rod vertically. Two first limiting sleeves are threaded onto the second screw. The two first limiting sleeves are distributed on both sides of the connecting rod. The end of the second screw protrudes from the end face of the first limiting sleeve.

[0016] The bracing rod includes two diagonal bracing rods, which are parallel to each other and spaced apart along the horizontal radial direction of the adjusting screw; a reinforcing plate is provided between the two diagonal bracing rods, and the second diagonal rods on the two diagonal bracing rods are connected by the reinforcing plate;

[0017] The connecting rod is located between the first inclined rods on the two inclined bracing rods and is rotatably connected by the second screw; each of the first inclined rods on the two inclined bracing rods is provided with a second locking nut on the side away from the connecting rod, and the second locking nut is sleeved on the outside of the second screw and threadedly connected to it.

[0018] Furthermore, the fixing base includes a fixing plate and a connecting plate connected to one end of the fixing plate, the connecting plate being perpendicular to the fixing plate, and the second diagonal rod being connected to the connecting plate;

[0019] When the slope surface used to connect the fixing seat is a concrete structure, the fixing plate is parallel to the concrete structure and fits against it, and the fixing plate is connected to the slope of the concrete structure by anchor bolts.

[0020] When the slope surface used to connect the fixing seat is a soil structure, the fixing plate is vertically inserted into the soil on the ground, and the tie plate is attached to the ground of the soil structure and connected to the slope of the soil structure by anchor bolts.

[0021] Furthermore, the end of the fixing plate away from the connecting plate has a pointed tip with a strip-shaped structure, the pointed tip being parallel to the connecting plate; the cross-section of the pointed tip has a sharp angle structure, the sharp angle structure being located on the side away from the connecting plate.

[0022] Furthermore, a transition plate is vertically provided on the side of the connecting plate away from the fixed plate, and the transition plate is perpendicular to the fixed plate; there are two transition plates, and the two transition plates are arranged at intervals along the axial direction of the second screw.

[0023] It also includes a second pin parallel to the second screw, and the second inclined rod is located between the two adapter plates and is hinged to the adapter plate through the second pin;

[0024] Both ends of the second pin are fitted with second limiting sleeves. The second limiting sleeves are located on the side of the adapter plate away from the second inclined rod and are threadedly connected to the second pin. The second limiting sleeves abut against the adapter plate.

[0025] Compared with existing technologies, the beneficial effects of this utility model are as follows: It provides a cantilever pile reinforcement structure for slope substations. By setting hoops and connecting rods, the cantilever sections of multiple cantilever piles are interconnected and supported to form an integral structure, improving the overall integrity of the multiple cantilever piles, maintaining the relative stability of the multiple cantilever piles, and preventing lateral displacement of individual cantilever piles; it also increases the strength of exposed cantilever sections, reduces the probability of deformation and damage to the cantilever sections under horizontal and bending forces, and ensures the structural safety of the slope substation. By setting bracing rods and fixing seats to connect and support the interconnected cantilever piles as a whole structure on the slope, the external forces on the cantilever piles are distributed to the slope, preventing deformation of the cantilever sections after being impacted by external forces, and preventing the cantilever piles from tilting and displacing, further improving the stability of the cantilever piles and the safety of the entire substation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an embodiment of the fixing base of this utility model installed on a concrete structure slope;

[0027] Figure 2 This is a schematic diagram of an embodiment of the fixing base of this utility model installed on a slope of a soil structure;

[0028] Figure 3 This is a schematic diagram of the assembly structure of one embodiment of the cantilever pile, hoop, connecting rod, strut, and fixing seat;

[0029] Figure 4 yes Figure 3 Enlarged structural diagram of section A in the middle;

[0030] Figure 5 This is a schematic diagram of the assembly structure of the clamp and connecting rod;

[0031] Figure 6 This is a schematic diagram of the hoop structure;

[0032] Figure 7 This is a schematic diagram of the connecting rod structure;

[0033] Figure 8 This is a schematic diagram of the assembly structure of the support rod and the fixing seat;

[0034] Reference numerals: 1-Hoop sleeve; 11-First hoop seat; 12-Second hoop seat; 13-First screw rod; 14-Limiting through hole; 15-First fastening nut; 2-Connecting rod; 21-Second screw rod; 22-First limiting sleeve; 23-Second pin; 24-Second limiting sleeve; 25-Second locking nut; 3-Stretch rod; 31-First diagonal rod; 32-Second diagonal rod; 33-Adjusting screw rod; 34-Lug; 35-First limiting nut; 36-Second limiting nut; 37-Reinforcing plate; 4-Fixing seat; 41-Fixing plate; 42-Tie plate; 45-Tip part; 46-Adapter plate; 9-Cantilever pile; 90-Slope; 91-Cantilever section. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] As attached Figure 1-8 As shown, a cantilever pile reinforcement structure for a slope substation includes multiple cantilever piles 9 embedded in the soil of a slope 90, distributed horizontally along the varying height of the slope 90. The upper end of each cantilever pile 9 protrudes from the slope surface of the slope 90 to form a cantilever section 91. The structure also includes a hoop 1, a connecting rod 2, a bracing rod 3, and a fixing seat 4. The hoop 1 is fitted onto the outside of the cantilever section 91 of the cantilever pile 9. Hoops 1 on two adjacent cantilever piles 9 are connected by the connecting rod 2 to form a fixing assembly, the connecting rod 2 being parallel to the horizontal plane. The fixing seat 4 is fixedly installed on the slope 90 above or below the cantilever pile 9. One end of the bracing rod 3 is connected to the connecting rod 2 of the fixing assembly, and the other end of the bracing rod 3 is connected to the fixing seat 4. The cantilever piles 9 are reinforced concrete piles, and the upper end of the cantilever section 91 is generally a pile cap, directly supporting the facilities and buildings within the substation.

[0037] This invention uses a clamp 1 and a connecting rod 2 to connect and support the cantilever sections 91 of multiple cantilever piles 9 to form an integral structure, improving the overall integrity of the multiple cantilever piles 9, maintaining the relative stability of the multiple cantilever piles 9, and preventing lateral displacement of individual cantilever piles 9; it also increases the strength of the exposed cantilever sections 91, reduces the probability of deformation and damage to the cantilever sections 91 under horizontal and bending forces, and ensures the structural safety of the slope substation. By setting a bracing rod 3 and a fixing seat 4, the interconnected cantilever piles 9 are connected and supported on the slope 90, distributing the external forces on the cantilever piles 9 to the slope 90, preventing deformation of the cantilever sections 91 after external impact, and preventing tilting and displacement of the cantilever piles 9, further improving the stability of the cantilever piles 9 and the safety of the entire substation.

[0038] The clamp 1 is mainly used for fixed connection with the cantilever pile 91. By connecting the clamps 1 on two adjacent cantilever sections 91, the two cantilever piles 9 can be connected, avoiding damage to the cantilever sections 91 of the cantilever pile 9 and ensuring that the overall strength of the cantilever pile 9 is not compromised. The clamp 1 has various structural forms, which can be common clamps or buckles on the market. Specifically, the clamp 1 includes a first clamp seat 11 and a second clamp seat 12. The first clamp seat 11 and the second clamp seat 12 are symmetrically distributed on both sides of the cantilever section 91 and each has a clamping groove. The cross-section of the clamping groove is an arc-shaped structure adapted to the shape and size of the outer wall of the cantilever section 91, and the central angle corresponding to the clamping groove is within 180°. The openings of the clamping grooves on the first clamp seat 11 and the second clamp seat 12 are opposite and coaxially arranged. The first clamp seat 11 and the second clamp seat 12 are fastened together by bolts. The cantilever section 91 is located in the clamping grooves of the first clamp seat 11 and the second clamp seat 12, and is in contact with the bottom wall and side wall of the clamping groove. The first clamp seat 11 and the second clamp seat 12 are fastened together on the outside of the cantilever section 91 by bolts for easy assembly and disassembly.

[0039] More specifically, the first clamp seat 11 has first screws 13 welded to both sides, arranged along the depth direction of the clamping groove thereon. The second clamp seat 12 has limiting through holes 14 on both sides, with their axes arranged along the depth direction of the clamping groove thereon. The first screws 13 pass through the limiting through holes 14 and are threadedly connected to the first fastening nut 15. The fastening nut is located on the side of the second clamp seat 12 away from the first clamp seat 11 and abuts against the second clamp seat 12. Welding the first screws 13 to the first clamp seat 11 facilitates the clamping assembly of the first clamp seat 11 and the second clamp seat 12.

[0040] Considering the considerable length of the exposed cantilever segment 91 at the upper end of some cantilever piles 9, simply installing a single hoop 1 to support it is insufficient. Preferably, multiple sets of hoop 1 are provided on the cantilever segment 91 of a single cantilever pile 9, with the sets of hoop 1 evenly distributed along the axial direction of the cantilever pile 9. This improves the protection and support points of the cantilever segment 91, enhancing its stiffness and strength.

[0041] The connecting rod 2 is used to support and connect the sleeves 1 on two adjacent cantilever piles 9, realizing the support and connection between multiple cantilever piles 9. The connecting rod 2 and the sleeves 1 can be connected by welding, bolting, or other methods. Specifically, the connecting rod 2 is located on the side of the second sleeve 12 away from the first sleeve 11; both ends of the connecting rod 2 are provided with connecting through holes, the first screw 13 passes through the connecting through holes, and the first fastening nut 15 is located on the side of the connecting rod 2 away from the first sleeve 11 and abuts against the connecting rod 2; the connecting rod 2 is also provided with a second screw 21 arranged horizontally, the second screw 21 perpendicularly passing through the connecting rod 2, and two first limiting sleeves 22 are threadedly connected to the second screw 21. The two first limiting sleeves 22 are distributed on both sides of the connecting rod 2, and the end of the second screw 21 protrudes from the end face of the first limiting sleeve 22. In use, through holes can be provided on the support rod 3 to fit the two ends of the second screw 21 for easy installation. Two first limiting sleeves 22 are used to axially limit the second screw 21 on the connecting rod 2.

[0042] The bracing rod 3 is used to support and connect the fixed assembly formed by the clamp 1 and the connecting rod 2 on the upper or lower side of the slope 9. One or more bracing rods 3 can be used; generally, multiple bracing rods 3 are used, with different bracing rods 3 connected to the horizontal bars 2 at different heights. The bracing rod 3 can be a single diagonal rod or a combination structure formed by multiple diagonal rods connected together. Preferably, the support rod 3 includes a diagonal support rod, which includes a first diagonal rod 31 and a second diagonal rod 32 arranged coaxially at intervals. The first diagonal rod 31 is connected to the connecting rod 2, and the second diagonal rod 32 is connected to the fixed seat 4. An adjusting screw 33 parallel to the first diagonal rod 31 is welded to one side of the first diagonal rod 31. The adjusting screw 33 protrudes from the first diagonal rod 31 in a direction close to the second diagonal rod 32. A lug 34 is provided on one side of the second diagonal rod 32. The lug 34 has a mounting through hole arranged coaxially with the adjusting screw 33. The adjusting screw 33 is located in the mounting through hole and passes through the lug 34. A first limiting nut 35 and a second limiting nut 36 are threadedly connected to the adjusting screw 33. The first limiting nut 35 and the second limiting nut 36 are distributed on both sides of the lug 34 and clamp the lug 34 along the axial direction of the adjusting screw 33. The first limiting nut 35 and the second limiting nut 36 cooperate to position the lug 34 on the adjusting screw 33. By synchronously adjusting the positions of the first limiting nut 35 and the second limiting nut 36 on the first fastening nut, the length of the entire diagonal brace can be adjusted, thus making the brace 3 suitable for connecting fixed components and fixed seats 4 with different spacings. Alternatively, a nut can be welded to the first diagonal rod 31, with the adjusting screw 33 threadedly connected to it inside the nut.

[0043] As a further preferred embodiment, the connecting rod 2 is provided with a second screw 21 arranged horizontally, the second screw 21 penetrating the connecting rod 2 vertically, and two first limiting sleeves 22 are threadedly connected to the second screw 21. The two first limiting sleeves 22 are distributed on both sides of the connecting rod 2, and the end of the second screw 21 protrudes from the end face of the first limiting sleeve 22; the support rod 3 includes two diagonal support rods, the two diagonal support rods are parallel to each other and arranged at a distance along the horizontal radial direction of the adjusting screw 33; a reinforcing bar is provided between the two diagonal support rods. The plate 37 connects the second diagonal rods 32 on the two diagonal bracing rods. The connecting rod 2 is located between the first diagonal rods 31 on the two diagonal bracing rods and is rotatably connected by the second screw 21. Each of the first diagonal rods 31 on the two diagonal bracing rods has a second locking nut 25 on the side away from the connecting rod 2. The second locking nut 25 is sleeved on the outside of the second screw 21 and threadedly connected to it. The second locking nut 25 abuts against the side wall of the first diagonal rod 31 along the axial direction of the second screw 21. The strength and stability of the diagonal bracing rod 3 are improved by setting two interconnected diagonal bracing rods. The first diagonal rod 31 and the connecting rod 2 are rotatably connected by the second screw 21 to adapt to the support and connection of the cantilever piles 9 on slopes 90 with different slopes. The second diagonal rods 32 and the reinforcing plate 37 are generally welded together. The second locking nut 25 is used to prevent the first diagonal rod 31 from coming off the second screw 21.

[0044] The fixing base 4 provides a reliable ground support point for the bracing rod 3, and can be a flat plate structure, a U-shaped block, or an L-shaped block, etc. Preferably, the fixing base 4 includes a fixing plate 41 and a connecting plate 42 connected to one end of the fixing plate 41. The connecting plate 42 is perpendicular to the fixing plate 41, and the second diagonal rod 32 is connected to the connecting plate 42. When the ground surface of the slope 90 for connecting the fixing base 4 is a concrete structure, the fixing plate 41 is parallel to the ground surface of the concrete structure and is in contact with it. The fixing plate 41 is connected to the slope 90 of the concrete structure by anchor bolts. When the ground surface of the slope 90 for connecting the fixing base 4 is a soil structure, the fixing plate 41 is vertically inserted into the soil, and the connecting plate 42 is in contact with the ground surface of the soil structure and is connected to the slope 90 of the soil structure by anchor bolts. The anchor bolts are generally expansion bolts. The above-mentioned concrete structure ground surface is generally located inside the substation, while the soil structure ground surface is generally located outside the substation. When there is no suitable concrete structure on the ground inside the substation, the fixing plate 41 can be inserted into the soil outside the substation, and the tie plate 42 can be fixed to the ground with anchor bolts. The fixing seat 4 of this structure can determine the connection method according to the different materials of the slope 90 soil, which improves the connection reliability between the fixing seat 4 and the slope 90 ground and is more convenient and flexible.

[0045] As a further preferred embodiment, the end of the fixing plate 41 away from the connecting plate 42 has a strip-shaped tip 45, which is parallel to the connecting plate 42; the cross-section of the tip 45 has a pointed structure, which is located on the side away from the connecting plate 42. By providing the tip 45, the fixing plate 41 can be more easily inserted into the soil, facilitating installation and improving the connection stability of the fixing base 4.

[0046] The connecting plate 42 on the fixed base 4 can be welded to the second diagonal rod 32 on the support rod 3, fastened with bolts, or connected with a pin. Preferably, a transition plate 46 is vertically provided on the side of the connecting plate 42 away from the fixed plate 41, and the transition plate 46 is perpendicular to the fixed plate 41; there are two transition plates 46, which are arranged at intervals along the axial direction of the second screw 21; it also includes a second pin 23 parallel to the second screw 21, the second diagonal rod 32 is located between the two transition plates 46 and is hinged to the transition plate 46 through the second pin 23; both ends of the second pin 23 are fitted with second limiting sleeves 24, the second limiting sleeves 24 are located on the side of the transition plate 46 away from the second diagonal rod 32 and are threadedly connected to the second pin 23, and the second limiting sleeves 24 abut against the transition plate 46. One end of the support rod 3 is hinged to the fixed base 4, and the other end is hinged to the crossbar 2, making this utility model applicable to situations where the crossbar 2 and the support rod 3 have different included angles, and the support rod 3 and the horizontal plane have different included angles, making the erection more flexible.

[0047] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A cantilever pile reinforcement structure for a slope substation, comprising multiple cantilever piles (9) embedded in the soil of a slope (90), wherein the multiple cantilever piles (9) are distributed horizontally along the height variation of the slope (90); the upper end of each cantilever pile (9) protrudes from the slope surface of the slope (90) to form a cantilever section (91); characterized in that: It also includes a clamp (1), a connecting rod (2), a bracing rod (3), and a fixing seat (4); The hoop (1) is fitted and fastened to the outside of the cantilever section (91) of the cantilever pile (9). The hoops (1) on two adjacent cantilever piles (9) are connected by a connecting rod (2) to form a fixed assembly. The connecting rod (2) is parallel to the horizontal plane. The fixed seat (4) is fixedly installed on the slope (90) on the upper or lower side of the cantilever pile (9). One end of the bracing rod (3) is connected to the connecting rod (2) of the fixed assembly, and the other end of the bracing rod (3) is connected to the fixed seat (4).

2. The cantilever pile reinforcement structure for slope substations according to claim 1, characterized in that: The hoop (1) includes a first hoop seat (11) and a second hoop seat (12). The first hoop seat (11) and the second hoop seat (12) are symmetrically distributed on both sides of the cantilever section (91) and each has a hoop connection groove. The cross-section of the hoop connection groove is an arc-shaped structure that matches the shape and size of the outer wall of the cantilever section (91). The central angle corresponding to the hoop connection groove is within 180°. The hoop joint slots on the first hoop (11) and the second hoop (12) are opposite to each other and arranged coaxially. The first hoop (11) and the second hoop (12) are fastened together by bolts. The cantilever section (91) is located in the hoop joint slots of the first hoop (11) and the second hoop (12) and is in contact with the bottom wall and side wall of the hoop joint slot.

3. The cantilever pile reinforcement structure for slope substations according to claim 2, characterized in that: The first hoop seat (11) has a first screw (13) welded on both sides along the depth direction of the hoop groove. The second hoop seat (12) has a limiting through hole (14) with the axis arranged along the depth direction of the hoop groove on both sides. The first screw (13) passes through the limiting through hole (14) and is threaded with a first fastening nut (15). The fastening nut is located on the side of the second hoop seat (12) away from the first hoop seat (11) and abuts against the second hoop seat (12).

4. The cantilever pile reinforcement structure for slope substations according to claim 1, characterized in that: Multiple sets of hoops (1) are provided on the cantilever section (91) of a single cantilever pile (9), and the multiple sets of hoops (1) are evenly distributed along the axial direction of the cantilever pile (9).

5. The cantilever pile reinforcement structure for slope substations according to claim 3, characterized in that: Both ends of the connecting rod (2) are provided with connecting through holes. The connecting rod (2) is located on the side of the second hoop (12) away from the first hoop (11). The first screw (13) passes through the connecting through hole. The first fastening nut (15) is located on the side of the connecting rod (2) away from the first hoop (11) and abuts against the connecting rod (2). The connecting rod (2) is also provided with a second screw (21) arranged in the horizontal direction. The second screw (21) penetrates the connecting rod (2) vertically. Two first limiting sleeves (22) are threadedly connected to the second screw (21). The two first limiting sleeves (22) are distributed on both sides of the connecting rod (2). The end of the second screw (21) protrudes from the end face of the first limiting sleeve (22).

6. The cantilever pile reinforcement structure for slope substations according to any one of claims 1-5, characterized in that: The bracing rod (3) includes a diagonal bracing rod, which includes a first diagonal rod (31) and a second diagonal rod (32) arranged coaxially at intervals. The first diagonal rod (31) is connected to the connecting rod (2), and the second diagonal rod (32) is connected to the fixed seat (4). A length-adjusting screw (33) parallel to the first inclined rod (31) is welded to one side. The length-adjusting screw (33) protrudes from the first inclined rod (31) towards the second inclined rod (32). A lug (34) is provided on one side of the second inclined rod (32). A mounting through hole is provided on the lug (34) and is arranged coaxially with the length-adjusting screw (33). The length-adjusting screw (33) is located in the mounting through hole and passes through the lug (34). A first limiting nut (35) and a second limiting nut (36) are threaded on the length-adjusting screw (33). The first limiting nut (35) and the second limiting nut (36) are distributed on both sides of the lug (34) and clamp the lug (34) along the axial direction of the length-adjusting screw (33).

7. The cantilever pile reinforcement structure for slope substations according to claim 6, characterized in that: The connecting rod (2) is provided with a second screw (21) arranged in the horizontal direction. The second screw (21) penetrates the connecting rod (2) vertically. Two first limiting sleeves (22) are threadedly connected to the second screw (21). The two first limiting sleeves (22) are distributed on both sides of the connecting rod (2). The end of the second screw (21) protrudes from the end face of the first limiting sleeve (22). The bracing rod (3) includes two diagonal bracing rods, which are parallel to each other and arranged at a distance along the horizontal radial direction of the adjusting screw (33); a reinforcing plate (37) is provided between the two diagonal bracing rods, and the second diagonal rods (32) on the two diagonal bracing rods are connected by the reinforcing plate (37); The connecting rod (2) is located between the first inclined rods (31) on the two inclined bracing rods and is rotatably connected by the second screw (21); the first inclined rods (31) on the two inclined bracing rods are provided with a second locking nut (25) on the side away from the connecting rod (2). The second locking nut (25) is sleeved on the outside of the second screw (21) and threadedly connected to it. The second locking nut (25) abuts against the side wall of the first inclined rod (31) along the axial direction of the second screw (21).

8. The cantilever pile reinforcement structure for slope substations according to claim 7, characterized in that: The fixing base (4) includes a fixing plate (41) and a connecting plate (42) connected to one end of the fixing plate (41). The connecting plate (42) is perpendicular to the fixing plate (41), and the second diagonal rod (32) is connected to the connecting plate (42). When the slope (90) ground used to connect the fixing seat (4) is a concrete structure, the fixing plate (41) is parallel to the ground of the concrete structure and fits against it. The fixing plate (41) is connected to the slope (90) of the concrete structure by anchor bolts. When the slope (90) ground for connecting the fixing seat (4) is a soil structure, the fixing plate (41) is vertically inserted into the soil on the ground, and the tie plate (42) is attached to the ground of the soil structure and connected to the slope (90) of the soil structure by anchor bolts.

9. The cantilever pile reinforcement structure for slope substations according to claim 8, characterized in that: The fixing plate (41) has a strip-shaped tip (45) at one end away from the pull plate (42), the tip (45) being parallel to the pull plate (42); the cross-section of the tip (45) has a sharp angle structure, the sharp angle structure being located on the side away from the pull plate (42).

10. The cantilever pile reinforcement structure for slope substations according to claim 9, characterized in that: The pull plate (42) has a transition plate (46) vertically provided on the side away from the fixed plate (41), and the transition plate (46) is perpendicular to the fixed plate (41); there are two transition plates (46), and the two transition plates (46) are arranged at intervals along the axial direction of the second screw (21); It also includes a second pin (23) parallel to the second screw (21), and the second inclined rod (32) is located between the two adapter plates (46) and is hinged to the adapter plate (46) through the second pin (23); The second pin (23) is fitted with a second limiting sleeve (24) at both ends. The second limiting sleeve (24) is located on the side of the adapter plate (46) away from the second inclined rod (32) and is threadedly connected to the second pin (23). The second limiting sleeve (24) abuts against the adapter plate (46).

Images