A protection structure for a slope of a hydroelectric and hydraulic engineering

Abstract

The present application relates to the technical field of slope protection, and specifically relates to a protection structure for the slope of a hydroelectric and water conservancy project, which comprises a supporting base, an inclined support frame arranged on the supporting base, and a slope protection fence arranged on the inclined support frame; the supporting base is provided with a support base, a front protruding support frame arranged on the front edge of the supporting base, and a flow shunting roller frame arranged on the front protruding support frame; the slope protection fence is provided with a buffer fence arranged in the center line region of the slope protection fence, an inclined outward support fence arranged on both sides of the buffer fence, and an arched reinforcing frame body arranged on the outer edge of the outward support fence; a shunting outer frame is arranged on the buffer fence, and a diffusion slope is arranged between the inclined outward support fences on both sides of the shunting outer frame. The present application optimizes the impact resistance of the slope protection structure, buffers and shunts the impact of the water flow, the water flow is impacted between each other after being shunted, the effect of water flow power dissipation is achieved, and the problem of regional fragmentation caused by the water flow impacting a certain position is avoided.

Description

Technical Field

[0001] This invention relates to the field of slope protection technology, specifically a protective structure for slopes in hydropower and water conservancy projects. Background Technology

[0002] Water conservancy projects are engineering projects constructed to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits. They are also called water engineering projects. Water is a precious resource essential for human production and life, but its natural state does not fully meet human needs. Only by constructing water conservancy projects can water flow be controlled, floods prevented, and water volume regulated and distributed to meet the needs of people's lives and production for water resources. Water conservancy projects require the construction of different types of hydraulic structures such as dams, dikes, spillways, sluices, intakes, canals, ferries, rafts, and fishways to achieve their goals. According to their purpose or service object, they can be divided into: flood control projects to prevent flood disasters; farmland water conservancy projects serving agricultural production to prevent drought, flooding, and waterlogging disasters, called irrigation and drainage projects; and hydroelectric power generation projects that convert water energy into electrical energy. Because riverbanks are eroded by water flow for a long time, the slopes become unstable and prone to landslides or collapses. Water within the slope reduces the physical and mechanical properties of the slope structure, decreasing slope stability.

[0003] Chinese patent (authorization announcement number: CN216141979U) discloses a protective structure for slopes in hydropower and water conservancy projects. One side of the embankment has a concrete layer to prevent water seepage, and a water storage area for two-stage flood control is fixedly connected to the same side. Observation walls have internal observation holes, and a water inlet area for preventing siltation is fixedly connected to one side of the water storage area. Steps are also fixedly connected to one side of the embankment. This patent solves the problem of slopes having a shortened service life due to long-term water immersion. However, for tributaries in flood-prone areas, the water level varies greatly, and the river stability is insufficient. Slope protection needs to effectively resist the impact of water flow, and this patent's resistance to water flow impact is inadequate. Summary of the Invention

[0004] The purpose of this invention is to provide a protective structure for slopes in hydropower and water conservancy projects to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A protective structure for the slope of a hydropower and water conservancy project includes a support base, an inclined support frame set on the support base, and a slope protection railing installed on the inclined support frame.

[0007] The support base is provided with a support base, a forward protruding support frame with the front edge of the support base, and a diverting roller frame provided on the forward protruding support frame.

[0008] The slope protection railing consists of a buffer railing in the centerline area, diagonal outward supports on both sides of the buffer railing, and an arched reinforcing frame on the outer edge of the outward supports. The buffer railing has a diversion outer frame, and a diffusion slope is provided between the diversion outer frame and the diagonal outward supports on both sides. The arched reinforcing frame has connecting components for positioning the buffer railing, diagonal outward supports, and arched reinforcing frame.

[0009] As a further embodiment of the present invention: the support base includes a bottom support platform, a frame body disposed on the bottom support platform, and a scaffolding railing installed on the frame body, wherein the slope protection railing is installed on the scaffolding railing. The forward-protruding support frame includes a front railing disposed on the bottom support platform, a mounting side plate disposed on the front railing, and a support plate disposed on the mounting side plate, wherein the diverting roller frame is installed between the support plates on both sides.

[0010] As a further embodiment of the present invention: the diverting roller frame includes a support bearing mounted on a support plate and a main roller body disposed on the support bearing. The mounting end of the main roller body is a spiral surface, and a plurality of strip-shaped blades are spirally disposed on the roller surface of the main roller body. The strip-shaped blades are all designed with an arc-shaped structure.

[0011] As a further aspect of the present invention: the buffer bar has an inward arched structure and is provided with a first concave area. The diversion outer frame includes a main frame body provided in the first concave area and an oblique face frame provided on the side edge of the main frame body and attached to the edge of the first concave area. The main frame body is provided with a second concave area and a cross support frame provided in the second concave area. The cross support frame is used to support the entire main frame body.

[0012] As a further aspect of the present invention: a trapezoidal slope is provided along the edge of the second concave region, and a vertical sloping surface facing both sides is provided on the vertical support rod of the cross support frame, and a horizontal sloping surface is provided on the horizontal support rod of the cross support frame, forming a cross-shaped slope structure.

[0013] As a further embodiment of the present invention: the diffusion slope is disposed on the side edge of the transverse slope, the main frame has a diffusion frame at the end of the transverse slope, the outer side of the diffusion frame is provided with a lead-out frame in a zigzag shape, and the side edge of the lead-out frame is provided with a lead-out platform; the diffusion slope is installed and connected to the lead-out platform through a combined slot, and the diffusion slope includes a side wing turning slope that fits onto the lead-out platform, a diversion guide plate disposed on the side wing turning slope, and an outer diffusion plate on the edge of the diversion guide plate.

[0014] As a further aspect of the present invention: the outer perimeter of the arched reinforced frame is provided with a side frame frame, and the oblique outward support includes a clamping frame provided on the outer perimeter of the side frame frame, an L-shaped positioning frame provided on the inner edge of the clamping frame, and a locking positioning bolt provided on the inner edge of the L-shaped positioning frame.

[0015] As a further embodiment of the present invention: the connecting assembly includes a plurality of reinforcing connecting rods disposed on the inclined outer support railing. The outer end of the reinforcing connecting rod is equipped with an outer clamp. The outer clamp matches the gap difference between the arched reinforcing frame and the inclined outer support railing and is connected to the frame surface of the arched reinforcing frame through a fixing bolt. The inner end of the reinforcing connecting rod is equipped with an inclined clamp. The inclined clamp is fixed to the inclined outer support railing by a mounting piece. The inclined end of the inclined clamp is installed on the inclined face frame by a plug.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] I. This invention optimizes the impact resistance of slope protection structures. The support base is located at the bottom of the overall slope protection area, serving as the basic support structure. The inclined support frame is set along the slope's inclination direction, and the slope protection railing is installed in a covering manner on the outer surface of the inclined support frame. Several sets of slope protection railings can be installed on the slopes of hydropower and water conservancy projects, connected sequentially to each other.

[0018] 2. The bottom of the support base is mainly supported by a support base. After the water flow collides with the diversion roller frame, the impact effect of the water flow is reduced, and the water is diverted to move upward. The slope protection railing is a folded structure composed of a buffer railing, an outer support railing, and an arched reinforcing frame. The buffer railing is the main body, used to block the impact of the water flow at this level, as well as the horizontal flow from bottom to top caused by the diversion roller frame. The buffer railing also has the effect of diverting the flow. The diversion outer frame diverts the water flow to both sides, diverting the water flow in the middle towards the diffusion slope area. The diverted water flows collide with each other, achieving the effect of water flow dynamic internal dissipation, and preventing the water flow from concentrating and impacting a certain position. This effectively protects the slope protection railing and avoids the problem of regional breakage of the slope protection structure.

[0019] Third, the connecting components are used to position the buffer railing, the diagonal outward support railing, and the arched reinforcing frame, and then connect them together as a whole. On the basis of the diversion structure, it is reinforced again to avoid the risk of the entire slope protection railing splitting due to the impact of the diversion.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the slope protection structure for hydropower and water conservancy projects provided in an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the support base provided in an embodiment of the present invention.

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of the structure of region A in the middle.

[0025] Figure 4 This is a schematic diagram of the structure of the buffer bar and the diversion frame provided in an embodiment of the present invention.

[0026] Figure 5 For the present invention Figure 1 A schematic diagram of the structure of region B in the middle.

[0027] Figure 6 For the present invention Figure 1 A schematic diagram of the structure of region C in the middle.

[0028] In the diagram: 11. Support base; 12. Slope guardrail; 13. Inclined support frame; 21. Support base; 22. Forward-protruding support frame; 23. Diverting roller frame; 24. Buffer railing; 25. Inclined outward support railing; 26. Arched reinforced frame; 27. Diverting outer frame; 28. Connecting assembly; 29. ​​Diffusion slope; 31. Support bearing; 32. Main roller body; 33. Spiral surface; 34. Strip blade; 41. Bottom support platform; 42. Erection frame; 43. Frame railing; 44. Front railing; 45. Support plate; 46. Installed side plate; 51. First concave area; 52. 53. Main frame; 54. Sloping face frame; 55. Second concave area; 56. Cross support frame; 57. Trapezoidal slope; 58. Vertical sloping surface; 69. Horizontal sloping surface; 60. Diffuser frame; 61. Outlet frame; 62. Outlet side platform; 63. Side wing turnover slope; 64. Diverter guide plate; 65. Outer diffuser plate; 66. Combined slot; 71. Side frame frame; 72. Clamping frame; 73. L-shaped positioning frame; 74. Locking positioning bolt; 81. Reinforcing connecting rod; 82. External clamp; 83. Fixing bolt; 84. Sloping clamp; 85. Mounting plate; 86. Inserting bolt. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, examples of which are illustrated in the drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or identical elements.

[0030] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0032] In one embodiment;

[0033] Please see Figure 1 A protective structure for the slope of a hydropower and water conservancy project is provided, including a support base 11, an inclined support frame 13 set on the support base 11, and a slope protection railing 12 installed on the inclined support frame 13.

[0034] The support base 11 is provided with a support base 21, a front protruding support frame 22 with the front edge of the support base 11, and a diverting roller frame 23 provided on the front protruding support frame 22.

[0035] The slope protection railing 12 includes a buffer railing 24 in the centerline area, diagonal outward supports 25 on both sides of the buffer railing 24, and an arched reinforcing frame 26 on the outer edge of the outer supports 25. The buffer railing 24 is provided with a diversion outer frame 27, and a diffusion slope 29 is provided between the diversion outer frame 27 and the diagonal outward supports 25 on both sides. The arched reinforcing frame 26 is provided with a connecting component 28, which is used to position the buffer railing 24, the diagonal outward supports 25, and the arched reinforcing frame 26.

[0036] This embodiment is based on existing slope protection technology for hydropower and water conservancy projects, and optimizes the structural design to improve the impact resistance of the protection structure. The support base 11 is located at the bottom of the overall slope protection area, serving as the basic support structure. The inclined support frame 13 is set along the slope's inclination direction, and the slope protection railing 12 is installed in a covering manner on the outer surface of the inclined support frame 13. Several sets of slope protection railings 12 can be installed on the slope of the hydropower and water conservancy project, connected sequentially to each other.

[0037] The bottom of the support base 11 is mainly supported by the support base 21. A forward-protruding support frame 22 is provided on the front side of the support base 21, which has a certain blocking effect on the water flow at the bottom. A diverting roller frame 23 is provided on the forward-protruding support frame 22. After the water flow collides with the diverting roller frame 23, the impact effect of the water flow is reduced and it is diverted to move upward. The slope protection railing 12 is a folded structure composed of a buffer railing 24, an outer support railing 25 and an arched reinforcing frame 26. The buffer railing 24 is the main body, which is used to block the impact of the water flow at this level and to divert the horizontal flow from bottom to top by the diverting roller frame 23. The buffer railing 24 also has the effect of diverting the flow. The diverting outer frame 27 diverts the water flow to both sides and diverts the water flow in the middle towards the diffusion slope 29 area. The diverted water flows collide with each other, achieving the effect of water flow dynamic internal dissipation, and avoiding the water flow from concentrating and impacting a certain position, effectively protecting the slope protection railing 12 and avoiding the problem of regional breakage of the slope protection structure.

[0038] The connecting component 28 is used to position the buffer railing 24, the diagonal outward support railing 25 and the arched reinforced frame 26, and then connect them together to reinforce the diversion structure again, so as to avoid the risk of the entire slope protection railing 12 splitting due to the impact of the diversion.

[0039] In one embodiment;

[0040] Based on the above embodiments, for the specific installation structure of the diverting roller frame 23, please refer to [link / reference needed]. Figure 2 and Figure 3 The design of this embodiment is as follows:

[0041] The support base 21 includes a bottom support 41, a frame 42 mounted on the bottom support 41, and a scaffolding railing 43 mounted on the frame 42. The slope protection railing 12 is mounted on the scaffolding railing 43. The forward-protruding support frame 22 includes a front railing 44 mounted on the bottom support 41, a mounting side plate 46 mounted on the front railing 44, and a support plate 45 mounted on the mounting side plate 46. The diverting roller frame 23 is mounted between the support plates 45 on both sides.

[0042] The bottom support 41 is used to ensure the stability of the bottom of the support base 21 and to serve as the foundation positioning. The frame railing 43 is used to connect the slope protection railing 12 to form an integrated slope support structure. The side plate 46 is used to support and install the diverting roller frame 23.

[0043] The diverting roller frame 23 includes a support bearing 31 mounted on a support plate 45 and a main roller body 32 mounted on the support bearing 31. The mounting end of the main roller body 32 is a spiral surface 33. Several strip-shaped blades 34 are spirally arranged on the roller surface of the main roller body 32. All the strip-shaped blades 34 are designed with an arc structure.

[0044] The diverting roller frame 23 uses the main roller body 32 as the main working body. The main roller body 32 is positioned by the support bearing 31, making the main roller body 32 a rotatable structure. When the water flow impacts the main roller body 32, it will drive the main roller body 32 to rotate. At this time, part of the impact potential energy is converted into the rotational kinetic energy of the main roller body 32, that is, a part of the impact force is consumed. Furthermore, the roller surface of the main roller body 32 is provided with a spiral structure, and the strip blades 34 are all designed with an arc structure. As the main roller body 32 rotates, it diverts the upward movement of the bottom layer. On the one hand, it diverts the water flow upward, which, together with the diverting outer frame 27, achieves the subsequent diversion effect. On the other hand, it causes the bottom water flow and the upper water flow to impact each other, further consuming the impact force of the water flow.

[0045] In one embodiment;

[0046] Based on the above embodiments, for the specific operational implementation structure of the buffer bar 24 and the diversion frame 27, please refer to [link / reference needed]. Figure 4 The design of this embodiment is as follows:

[0047] The buffer bar 24 has an inward arched structure and is provided with a first concave area 51. The diversion outer frame 27 includes a main frame 52 disposed in the first concave area 51 and an oblique face frame 53 disposed on the side edge of the main frame 52 and attached to the edge of the first concave area 51. The main frame 52 is provided with a second concave area 54 and a cross support frame 55 disposed in the second concave area 54. The cross support frame 55 is used to support the entire main frame 52.

[0048] The edge of the second concave region 54 is provided with a trapezoidal slope 56, the vertical support rod of the cross support frame 55 is provided with a vertical sloping surface 57 facing both sides, the horizontal support rod of the cross support frame 55 is provided with a horizontal sloping surface 58, and the horizontal sloping surface 58 forms a cross-shaped slope structure.

[0049] The buffer barrier 24 has an inward arched structure. The first concave area 51 is the installation area for the diversion frame 27 itself. The diversion frame 27 fits the structural shape of the buffer barrier 24 and has an outward-expanding structural design. The main frame 52 has a second concave area 54, which is a water flow buffer and diversion area. The cross support frame 55 is used to support the entire main frame 52. The vertical slope 57 is designed vertically, diverting water to both sides to create a cutting effect on the impacting water flow. The main frame 52 has a trapezoidal slope 56 structure, which allows the water flow to converge to both sides after diversion, forming a direction that is vertically cut and then converges to both sides. The transverse slope 58 forms a cross-shaped slope structure. This causes the water flow in the transverse position to have an outward diffusion trend. The water flow that converges to both sides after vertical cutting creates an impact and convergence, thus diffusing to both sides along the direction of the diffusion slope 29.

[0050] Existing slope protection structures often result in fractures or cracks at specific points after being impacted by water flow, which then spread from those points to the surrounding area, affecting the overall stability of the slope. This embodiment, however, designs a structure that effectively reduces the direct impact of water flow on the protected surface, diffuses and separates the water flow, increases the internal impact friction of the water flow itself, and avoids the risk of continuous impact towards a single point, thus greatly reducing the risk of regional fractures.

[0051] In one instance of this embodiment, please refer to Figure 5 The diffusion slope 29 is disposed on the side edge of the transverse slope 58. The main frame 52 has a diffusion frame 61 at the end of the transverse slope 58. The outer side of the diffusion frame 61 is provided with a zigzag outwardly turned-outwardly as an outlet frame 62. An outlet platform 63 is provided on the side edge of the outlet frame 62. The diffusion slope 29 is installed and connected to the outlet platform 63 through a combination slot 67. The diffusion slope 29 includes a side wing turnover slope 64 attached to the outlet platform 63, a diversion guide plate 65 disposed on the side wing turnover slope 64, and an outer diffusion plate 66 on the edge of the diversion guide plate 65.

[0052] In this embodiment, the main frame 52 is surrounded by a diffusion frame 61. The diffusion slope 29 is connected to the outlet platform 63 through the combined slot 67, thus forming a stepped arrangement that descends layer by layer. The diverted water flows from the diffusion frame 61 to the outlet frame 62, then to the outlet platform 63, and then to the diversion guide plate 65, reducing the impact of the water flow and further reducing the impact force of the diverted water flow.

[0053] In one embodiment;

[0054] Based on the above embodiments, for the integrated connection method of the positioning buffer bar 24, the diagonal outward support bar 25, and the arched reinforced frame 26, please refer to... Figure 1 and Figure 6 The design of this embodiment is as follows:

[0055] The arched reinforced frame 26 is surrounded by a side frame frame 71. The diagonal outward support 25 includes a clamping frame 72 located around the side frame frame 71, an L-shaped positioning frame 73 located along the inner edge of the clamping frame 72, and a locking positioning bolt 74 located along the inner edge of the L-shaped positioning frame 73. The diagonal outward support 25 and the arched reinforced frame 26 are connected by the side frame frame 71 and the clamping frame 72 to form a frame-embedded assembly structure, and the L-shaped positioning frame 73 further enhances the support effect.

[0056] The connecting assembly 28 includes several reinforcing rods 81 disposed on the inclined outer support 25. The outer end of the reinforcing rod 81 is equipped with an outer clamp 82. The outer clamp 82 fills the gap difference between the arched reinforcing frame 26 and the inclined outer support 25 and is connected to the frame surface of the arched reinforcing frame 26 through a fixing bolt 83. The inner end of the reinforcing rod 81 is equipped with an inclined clamp 84. The inclined clamp 84 is fixed to the inclined outer support 25 through a mounting piece 85. The inclined end of the inclined clamp 84 is installed on the inclined face frame 53 through a plug 86.

[0057] The reinforcing link 81, together with the fixing bolts 83 and the oblique clamps 84 at both ends, uses the oblique outward support 25 as the basic support area. The positioning buffer rails 24 and the arched reinforcing frame 26 on both sides of the oblique outward support 25 are fixed to the oblique outward support 25. The positioning buffer rails 24, the oblique outward support 25 and the arched reinforcing frame 26, which are not in the same plane, are connected to form a trapezoidal slope with a broken line direction, which ensures the overall stability and effectively resists the impact of water flow.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective structure for slopes in hydropower and water conservancy projects, comprising a support base, an inclined support frame disposed on the support base, and a slope protection railing installed on the inclined support frame; characterized in that, The support base is provided with a support base, a forward protruding support frame with the front edge of the support base, and a diverting roller frame provided on the forward protruding support frame. The slope protection railing consists of a buffer railing in the centerline area, diagonal outward supports on both sides of the buffer railing, and an arched reinforcing frame on the outer edge of the outward supports. The buffer railing has a diversion outer frame, and a diffusion slope is provided between the diversion outer frame and the diagonal outward supports on both sides. The arched reinforcing frame has a connecting component for positioning the buffer railing, the diagonal outward supports, and the arched reinforcing frame. The support base includes a bottom support platform, a frame body set on the bottom support platform, and a scaffolding railing installed on the frame body. The slope protection railing is installed on the scaffolding railing. The front protruding support frame includes a front railing set on the bottom support platform, a mounting side plate set on the front railing, and a support plate set on the mounting side plate. The diverting roller frame is installed between the support plates on both sides. The diverting roller frame includes a support bearing mounted on a support plate and a main roller body disposed on the support bearing. The mounting end of the main roller body is a spiral surface, and a number of strip-shaped blades are spirally arranged on the roller surface of the main roller body. All the strip-shaped blades are designed with an arc structure. The buffer bar has an inner arched structure and is provided with a first concave area. The diversion outer frame includes a main frame body provided in the first concave area and an oblique face frame provided on the side edge of the main frame body and attached to the edge of the first concave area. The diffusion slope is set on the side edge of the transverse slope. The main frame has a diffusion frame at the end of the transverse slope. The outer side of the diffusion frame is provided with a zigzag outward-turned guide frame. The side edge of the guide frame is provided with a guide platform. The diffusion slope is installed and connected to the guide platform through a combined slot. The diffusion slope includes a side wing turning slope that fits onto the guide platform, a diversion guide plate set on the side wing turning slope, and an outer diffusion plate on the edge of the diversion guide plate.

2. The slope protection structure for hydropower and water conservancy projects according to claim 1, characterized in that, The main frame is provided with a second concave area and a cross support frame provided in the second concave area, the cross support frame being used to support the entire main frame.

3. The slope protection structure for hydropower and water conservancy projects according to claim 2, characterized in that, The edge of the second concave area is provided with a trapezoidal slope, the vertical support rod of the cross support frame is provided with a vertical sloping surface facing both sides, and the horizontal support rod of the cross support frame is provided with a horizontal sloping surface, the horizontal sloping surface forming a cross-shaped slope structure.

4. The slope protection structure for hydropower and water conservancy projects according to claim 1, characterized in that, The arched reinforced frame is surrounded by a side frame frame. The oblique outward support includes a clamping frame located outside the side frame frame, an L-shaped positioning frame located on the inner edge of the clamping frame, and a locking positioning bolt located on the inner edge of the L-shaped positioning frame.

5. The slope protection structure for hydropower and water conservancy projects according to claim 4, characterized in that, The connecting assembly includes several reinforcing rods disposed on the inclined outer support. The outer ends of the reinforcing rods are equipped with external clamps. The external clamps fill the gap difference between the arched reinforcing frame and the inclined outer support and are connected to the frame surface of the arched reinforcing frame through fixing bolts. The inner ends of the reinforcing rods are equipped with inclined clamps. The inclined clamps are fixed to the inclined outer support by mounting pieces. The inclined ends of the inclined clamps are installed on the inclined face frame by insertion bolts.

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