Tough energy dissipation protection device for face rockfill dams under earthquake and frost combined chain disasters

Abstract

The present invention discloses a tough energy dissipation protection device for composite chain disasters of earthquake and frost in a panel rockfill dam, which comprises: a mounting base; a linkage anti-pressure component, which is arranged corresponding to the mounting base, wherein a plurality of inner recesses are arranged on the panel rockfill dam, and the mounting base is embedded and fixed in the inner recesses through the linkage anti-pressure component; a guiding energy dissipation component, which is arranged on the mounting base and can buffer and dissipate the energy of the torrent generated by ice-induced vibration under rotation; and an external ice-breaking device, which is circumferentially distributed on the guiding energy dissipation component.

Description

Technical Field

[0001] The present invention belongs to the technical field of rockfill dam protection equipment, and in particular relates to a toughness energy dissipation protection device for composite chain disasters caused by earthquakes and freezing in face-plate rockfill dams. Background Art

[0002] Sea ice, often called the "white killer," covers the polar regions and high-latitude waters year-round. Ice loads from the breakup of sea ice can cause structural vibrations. Ice-induced vibrations are a major hazard to marine structures in icy areas. Severe sea ice freezing can even severely impact fisheries, offshore platform operations, and coastal port infrastructure. Currently, most rockfill dams lack adequate measures to mitigate the impact of earthquake-induced sea ice on the dams, requiring costly and long-term maintenance.

[0003] Therefore, those skilled in the art have provided a tough energy dissipation protection device for composite chain disasters of earthquake and frost in face rockfill dams to solve the problems raised in the above background technology. Summary of the Invention

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a tough energy dissipation protection device for a concrete face rockfill dam against earthquake and frost combined chain disasters, comprising:

[0005] Install the base;

[0006] A linked anti-pressure component is provided corresponding to the mounting base, wherein a plurality of recessed positions are arranged on the face rockfill dam, and the mounting base is embedded and fixed in the recessed positions through the linked anti-pressure component;

[0007] a guiding and energy dissipating assembly, arranged on the mounting base, capable of buffering and dissipating the torrent generated by ice-induced vibration under self-rotation; and

[0008] The external ice-breaking device is circumferentially distributed on the guiding and energy-dissipating assembly.

[0009] Furthermore, preferably, the linkage anti-pressure component includes:

[0010] An inner transmission bar is transversely fixed in the inner recess, and the mounting base is slidably arranged on the inner transmission bar;

[0011] a buffer spring connected to the mounting base and arranged in the opposite direction to the impact direction of the rapid flow;

[0012] A sealing cylinder is horizontally fixed below the mounting base, wherein a plunger body is slidably disposed in the sealing cylinder, and one end of the plunger body is fixed to the inner wall of the inner recess; and

[0013] There are multiple guide pipes distributed in the circumferential direction. One end of each guide pipe is connected to the sealing cylinder, and the other end thereof is respectively connected to the sealing cylinder on the adjacent corresponding side.

[0014] Furthermore, preferably, a support seat is hinged on one side of the mounting base, the guiding and energy dissipating assembly is fixed on the support seat, and a telescopic guide rod is connected between the support seat and the mounting base.

[0015] Furthermore, preferably, the energy dissipation guiding component includes:

[0016] A guide shaft body is rotatably mounted above the mounting base;

[0017] Adjust the energy dissipation seat, fixed on the frame support seat;

[0018] A central axis rod is rotatably mounted on the adjustable energy dissipation seat, and the guide shaft is fixed to the central axis rod;

[0019] An outer ring frame is sleeved and arranged outside the guide shaft and fixed to the adjustable energy dissipation seat, and the external ice breaking device is arranged on the outer ring frame; and

[0020] The flow-repelling plate is coaxially fixed to the end of the central axis rod.

[0021] Further, as a preference, the adjustable energy dissipation seat includes:

[0022] Fixed shaft disc;

[0023] The guide cavity is configured as an arc-shaped structure and is centrally symmetrically arranged within the fixed shaft disc. An arc-shaped plug is slidably arranged within the guide cavity, and each arc-shaped plug is connected to the central shaft rod via an adjusting shaft pin.

[0024] An energy dissipation outer cylinder is sleeved on the outside of the guide cavity, and a ring plug is slidably provided in the energy dissipation outer cylinder;

[0025] A connecting spring is disposed in the energy dissipation outer cylinder and is in abutment contact with the ring plug;

[0026] An inner plug is slidably disposed in the guide cavity, a decompression chamber is constructed between the inner plug and the arc plug, and the decompression chamber is connected to the energy dissipation outer cylinder through a connecting pipe;

[0027] an inner spring connected between the inner plug and the arc plug; and

[0028] The external pipe is connected to each of the guide chambers, and the other end of the external pipe is communicated with the external loading chamber.

[0029] Furthermore, as a preference, a center receiving plate is also provided in the fixed shaft disk, and a rest plate is provided on the upper end surface of the center receiving plate so as to be rotatable relative to it, and a limiting ring frame is also provided above the center receiving plate, and the limiting ring frame is connected to the rest plate through a plurality of circumferentially arranged support springs, and the rest plate is provided with an inner groove for slidingly embedding the adjusting shaft pin, wherein the adjusting shaft pin is arranged on the central axis rod so as to be vertically slidable and adjustable, and can be connected to the arc plug or the rest plate respectively.

[0030] Furthermore, preferably, the cross section of the fitting surface between the abutment disk and the central receiving disk is configured as a wave-shaped structure or a file-tooth-like structure.

[0031] Furthermore, preferably, the external ice-breaking device includes:

[0032] A penetrating rod is vertically slidably arranged on the outer ring frame;

[0033] A limit spring sleeved on the outside of the penetrating rod;

[0034] A shift frame is configured as an L-shaped structure, one end of which is fixed to the penetration rod; and

[0035] The guide plate is installed and sleeved on the central shaft, and one end of each gear frame is against the installation guide plate.

[0036] Furthermore, preferably, a plurality of lifting protrusions are provided on the contact surface between the mounting guide plate and the gear rack.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention mainly arranges and distributes multiple guiding and energy-dissipating components on the panel rockfill dam. On the one hand, the guiding and energy-dissipating components can provide pressure protection against huge ice-induced vibrations through the linked pressure-resistant components. On the other hand, they can also cope with the frequency-locked vibrations caused by the squeezing and crushing of sea ice through their own diversion effect. In particular, the external ice-breaking device provided can simultaneously crush and penetrate the sea ice, reducing the impact force of the sea ice on the dam body. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the present invention;

[0040] Figure 2 Schematic diagram of the structure of the linkage anti-pressure component in the present invention;

[0041] Figure 3 It is a structural schematic diagram of the energy dissipation guiding assembly in the present invention;

[0042] Figure 4 It is a structural schematic diagram of the energy dissipation seat adjustment in the present invention;

[0043] Figure 5 This is a structural diagram of the center receiving plate in the present invention;

[0044] Figure 6 It is a structural diagram of the external ice-breaking device of the present invention;

[0045] In the figure: 1. Mounting base; 2. Linkage anti-pressure assembly; 21. Inner transmission lever; 22. Buffer spring; 23. Sealing cylinder; 24. Plunger body; 25. Guide pipe; 26. Frame support; 27. Telescopic guide rod; 3. Guide and energy dissipation assembly; 31. Guide shaft; 32. Outer ring frame; 33. Middle axis rod; 34. Flow-repelling plate; 4. External ice-breaking device; 41. Penetrating rod; 42. Mounting guide plate; 43. Shift frame; 5. Adjustable energy dissipation seat; 51. Fixed shaft plate; 52. Guide cavity; 53. Arc plug; 54. Energy dissipation outer cylinder; 55. Inner plug; 56. Connecting spring; 57. External pipe; 58. Connecting pipe; 6. Center connecting plate; 61. Retaining plate; 62. Adjusting shaft pin; 63. Limiting ring frame. DETAILED DESCRIPTION

[0046] See also Figure 1 In an embodiment of the present invention, a tough energy dissipation protection device for a face rockfill dam against earthquake and frost combined chain disasters comprises:

[0047] Install base 1;

[0048] A linked anti-pressure component 2 is provided corresponding to the mounting base 1, wherein a plurality of recessed positions are arranged on the face rockfill dam, and the mounting base 1 is embedded and fixed in the recessed positions through the linked anti-pressure component 2;

[0049] A guiding and energy dissipating component 3 is provided on the mounting base 1 and is capable of buffering and dissipating the energy of the torrent generated by the ice-induced vibration under self-rotation; and

[0050] The external ice-breaking device 4 is circumferentially distributed on the guiding and energy-dissipating assembly 3. That is, a plurality of guiding and energy-dissipating assemblies can be arranged and distributed on the face rockfill dam, and adaptively adjusted according to different underwater installation depths.

[0051] In this embodiment, the linkage anti-pressure component 2 includes:

[0052] The inner transmission bar 21 is transversely fixed in the inner concave position, and the mounting base 1 is slidably arranged on the inner transmission bar 21;

[0053] A buffer spring 22 is connected to the mounting base 1 and is arranged in the opposite direction to the impact direction of the rapid flow;

[0054] A sealing cylinder 23 is horizontally fixed below the mounting base 1 , wherein a plunger body 24 is slidably disposed in the sealing cylinder 23 , and one end of the plunger body 24 is fixed to the inner wall of the inner recess; and

[0055] There are multiple guide pipes 25 distributed circumferentially, one end of each guide pipe 25 is connected to the sealing cylinder 23, and the other end thereof is respectively connected to the sealing cylinder 23 on the adjacent corresponding side. In particular, during use, the ice-induced vibration can be preferentially transmitted to the guiding and energy-dissipating component at the relatively front. At this time, the guiding and energy-dissipating component pushes the mounting base to shift laterally, and the sealing cylinder on the mounting base that shifts preferentially can discharge the internal pressurized liquid into the adjacent sealing cylinder through the plunger body, thereby enhancing the compressive strength of the adjacent guiding and energy-dissipating components and forming a reverse pushing effect.

[0056] As a preferred embodiment, a frame seat 26 is hingedly connected to one side of the mounting base 1, the guiding and energy dissipating assembly 3 is fixed on the frame seat 26, and a telescopic guide rod 27 is connected between the frame seat 26 and the mounting base 1. In particular, the telescopic guide rod can control the frame seat to adjust within the range of 70°-20° under telescopic adjustment, so as to change the installation angle of the guiding and energy dissipating assembly.

[0057] In this embodiment, the energy dissipation guiding component 3 includes:

[0058] The guide shaft 31 is rotatably mounted above the mounting base 1;

[0059] Adjust the energy dissipation seat 5 and fix it on the frame support seat 26;

[0060] The central axis rod 33 is rotatably mounted on the energy dissipation adjustment seat 5 , and the flow guide shaft 31 is fixed to the central axis rod 33 ;

[0061] An outer ring frame 32 is sleeved and arranged outside the guide shaft body 31 and fixed to the adjustable energy dissipation seat 5. The outer ice breaking device 4 is arranged on the outer ring frame 32; and

[0062] The deflector plate 34 is coaxially fixed to the end of the central axis 33. That is to say, when the sea ice flows, the guide shaft can turn and dissipate energy accordingly, thereby reducing the impact effect of the sea ice, and the external icebreaking device can break the ice at the same time.

[0063] In this embodiment, the adjustable energy dissipation seat 5 includes:

[0064] Fixed shaft disc 51;

[0065] The guide cavity 52 is configured as an arc-shaped structure and is centrally symmetrically arranged within the fixed shaft disc 51. An arc-shaped plug 53 is slidably arranged within the guide cavity 52. ​​Each arc-shaped plug 53 is connected to the central axis 33 via an adjusting pin 62. In other words, the central axis can move and slide synchronously with the movement of the central arc plug as the sea ice is turned.

[0066] The energy dissipation outer cylinder 54 is sleeved on the outside of the guide cavity 52, and a ring plug is slidably provided in the energy dissipation outer cylinder 54;

[0067] A connecting spring 56 is disposed in the energy dissipation outer cylinder 54 and is in contact with the ring plug;

[0068] An inner plug 55 is slidably disposed in the guide cavity 52 , and a decompression chamber is constructed between the inner plug 55 and the arc plug 53 , and the decompression chamber is connected to the energy dissipation outer cylinder 54 through a connecting pipe 58 ;

[0069] The inner spring is connected between the inner plug 55 and the arc plug 53; especially when ice vibration occurs, the arc plug can preferentially move along the guide cavity. At this time, the inner spring is gradually compressed, so that the airflow in the decompression chamber is discharged into the energy dissipation outer cylinder, and the displacement of the ring plug is used to cooperate with the connecting spring to dissipate vibration energy, and

[0070] The external tube 57 is connected to each of the guide cavities 52, and the other end of the external tube 57 is connected to the external load cavity. The arc plug can discharge the airflow in the guide cavity into the external load cavity through the external tube, and the external load cavity can drive the arc plug to slide and reset under high pressure (at this time, the arc plug is not affected by external force).

[0071] In this embodiment, a center receiving disk 6 is further provided in the fixed shaft disk 51, and a relatively rotatable abutment disk 61 is provided on the upper end surface of the center receiving disk 6, and a limiting ring frame 63 is further provided above the center receiving disk 6. The limiting ring frame 63 is connected to the abutment disk 61 through a plurality of circumferentially arranged support springs 64, and the abutment disk 61 is provided with an inner groove for slidingly embedding the adjusting shaft pin 62, wherein the adjusting shaft pin 62 is vertically slidably adjusted and arranged on the central axis rod 33, and can be connected to the arc plug 53 or the abutment disk 61 respectively. In particular, the extrusion and crushing process of sea ice is a ductile fracture. In its damage stage, the high-intensity ice-induced vibration can be dissipated and absorbed by the energy-dissipating outer cylinder, and in its crushing stage (that is, the sea ice continues to surge with the wave flow), the friction between the abutment disk and the center receiving disk can be used to dissipate and absorb the energy.

[0072] As a preferred embodiment, the cross-section of the fitting surface between the abutment disk 61 and the center receiving disk 6 is configured as a wave-shaped structure or a file-like structure, thereby further increasing the friction between the abutment disk and the center receiving disk.

[0073] In this embodiment, the external ice-breaking device 4 includes:

[0074] A penetrating rod 41 is vertically slidably disposed on the outer ring frame 32;

[0075] A limit spring, sleeved on the outside of the penetrating rod 41;

[0076] The shift frame 43 is configured as an L-shaped structure, one end of which is fixed to the penetration rod 41; and

[0077] The guide plate 42 is installed and sleeved on the central shaft 33 , and one end of each of the gear racks 433 is in contact with the guide plate 42 .

[0078] In this embodiment, a plurality of lifting protrusions are provided on the contact surface between the mounting guide plate 42 and the shift frame 43. In particular, adjacent penetration rods can be extended to different heights by the lifting action of the lifting protrusions, thereby improving the overall crushing effect.

[0079] Specifically, multiple recessed positions are excavated at intervals on the panel rockfill dam, with the spacing between the recessed positions maintained within the range of 1.5m-1.8m. The guiding and energy dissipating components are installed in the recessed positions through the linked pressure-resistant components. The installation angles of each row of guiding and energy dissipating components are preferably adjusted accordingly through telescopic guide rods (which can be changed according to the specific placement occasions), so that the guiding and energy dissipating components can dissipate and absorb the impact surge of wave flow or ice-induced vibration under self-rotation. In particular, the external ice-breaking device can provide an ice-breaking effect to avoid the impact of huge ice blocks.

[0080] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A tough energy dissipation protection device for face rockfill dams against earthquake and frost-induced chain disasters, characterized by: It includes: Installing the base (1); A linked anti-pressure component (2) is provided corresponding to the mounting base (1), wherein a plurality of recessed positions are arranged on the face rockfill dam, and the mounting base (1) is embedded and fixed in the recessed positions through the linked anti-pressure component (2); The guiding and energy dissipating component (3) is arranged on the mounting base (1), and the guiding and energy dissipating component (3) can buffer and dissipate the energy of the torrent generated by the ice-induced vibration under rotation; External ice-breaking devices (4) are circumferentially distributed on the guiding and energy-dissipating assembly (3); The linked pressure-resistant component (2) comprises: An inner transmission bar (21) is transversely fixed in the inner concave position, and a mounting base (1) is slidably arranged on the inner transmission bar (21); A buffer spring (22) is connected to the mounting base (1) and is arranged in the opposite direction to the impact direction of the torrent; The sealing cylinder (23) is fixed horizontally below the mounting base (1), and a plunger body (24) is slidably provided in the sealing cylinder (23), and one end of the plunger body (24) is fixed to the inner wall of the inner concave position; The guide pipes (25) are multiple and distributed in the circumferential direction. One end of each guide pipe (25) is connected to the sealing cylinder (23), and the other end thereof is connected to the sealing cylinder (23) on the adjacent corresponding side. A support seat (26) is hingedly connected to one side of the mounting base (1), the guide energy dissipation assembly (3) is fixed on the support seat (26), and a telescopic guide rod (27) is connected between the support seat (26) and the mounting base (1); The energy dissipation guiding component (3) comprises: A flow guide shaft (31) is rotatably mounted above the mounting base (1); Adjust the energy dissipation seat (5) and fix it on the frame support seat (26); A central axis rod (33) is rotatably mounted on the energy dissipation adjustment seat (5), and the flow guide shaft (31) is fixed to the central axis rod (33); An outer ring frame (32) is sleeved and arranged outside the guide shaft body (31) and fixed to the adjustable energy dissipation seat (5); an outer ice breaking device (4) is arranged on the outer ring frame (32); A flow-repelling disc (34) is coaxially fixed to the end of the central shaft (33); The adjustable energy dissipation seat (5) comprises: Fixed shaft disc (51); The guide cavity (52) is configured as an arc-shaped structure and is centrally symmetrically arranged in the fixed shaft disc (51). An arc-shaped plug (53) is slidably arranged in the guide cavity (52), and each arc-shaped plug (53) is connected to the central shaft rod (33) through an adjusting shaft pin (62); An energy dissipation outer cylinder (54) is sleeved outside the guide cavity (52), and a ring plug is slidably provided in the energy dissipation outer cylinder (54); A connecting spring (56) is disposed in the energy dissipating outer cylinder (54) and is in abutment contact with the ring plug; An inner plug (55) is slidably disposed in the guide cavity (52), a decompression chamber is formed between the inner plug (55) and the arc plug (53), and the decompression chamber is connected to the energy dissipation outer cylinder (54) through a connecting pipe (58); an inner spring connected between the inner plug (55) and the arc plug (53); An external pipe (57) is connected to each of the guide chambers (52), and the other end of the external pipe (57) is communicated with the external loading chamber.

2. The toughness energy dissipation protection device for concrete face rockfill dams against earthquake and frost combined chain disasters according to claim 1 is characterized by: A central receiving disk (6) is also provided in the fixed shaft disk (51), and a relatively rotatable abutting disk (61) is provided on the upper end surface of the central receiving disk (6), and a limiting ring frame (63) is also provided above the central receiving disk (6), and the limiting ring frame (63) is connected to the abutting disk (61) through a plurality of circumferentially arranged supporting springs (64), and the abutting disk (61) is provided with an inner groove for slidingly embedding the adjusting shaft pin (62), wherein the adjusting shaft pin (62) is arranged on the central shaft rod (33) in a vertically slidable manner and can be connected to the arc plug (53) or the abutting disk (61) respectively.

3. The toughness energy dissipation protection device for concrete face rockfill dams against earthquake and frost combined chain disasters according to claim 2 is characterized by: The cross section of the fitting surface between the abutting disc (61) and the central receiving disc (6) is configured as a wave-shaped structure or a file-like structure.

4. The toughness energy dissipation protection device for concrete face rockfill dams against earthquake and frost combined chain disasters according to claim 1 is characterized by: The external ice-breaking device (4) comprises: A penetrating rod (41) is vertically slidably arranged on the outer ring frame (32); A limit spring sleeved on the outside of the penetrating rod (41); A shift frame (43) is configured as an L-shaped structure, one end of the shift frame (43) being fixed to the penetration rod (41); The guide plate (42) is installed and sleeved on the central shaft (33), and one end of each gear frame (43) is against the guide plate (42).

5. The toughness energy dissipation protection device for concrete face rockfill dams against earthquake and frost combined chain disasters according to claim 4 is characterized by: A plurality of lifting protrusions are provided on the contact surface between the mounting guide plate (42) and the gear frame (43).

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