CN112030793B - Anchor chain floating wing type debris flow energy dissipation device and method - Google Patents
Anchor chain floating wing type debris flow energy dissipation device and method Download PDFInfo
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- CN112030793B CN112030793B CN202010917602.9A CN202010917602A CN112030793B CN 112030793 B CN112030793 B CN 112030793B CN 202010917602 A CN202010917602 A CN 202010917602A CN 112030793 B CN112030793 B CN 112030793B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
- E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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Abstract
The invention provides an anchor chain floating wing type debris flow energy dissipation device. The energy dissipater comprises: the energy dissipation device comprises a fixing unit, an energy dissipation chain net and a buoyancy lifting unit which are sequentially connected, wherein the fixing unit comprises a plurality of anchor rods, each anchor rod is fixed on bedrock, and one outward end of each anchor rod is connected with the front end of the energy dissipation chain net; the energy dissipation chain net is formed by weaving a plurality of chains, and two adjacent chains are locked by a plurality of buffer components; the buoyancy lifting unit comprises a plurality of buoys connected with the tail ends of the energy dissipation chain nets, and the buoys are connected together in a whole or partial side-by-side mode. The energy dissipation method can adopt the device to dissipate the energy of the debris flow. The beneficial effects of the invention include: the device has the advantages of simple structure, convenient installation and use, low cost and high efficiency, and can effectively reduce the flow velocity of the debris flow, particularly reduce the impact velocity of coarse particles in the debris flow, reduce the impact kinetic energy and reduce the destructive power.
Description
Technical Field
The invention relates to the field of debris flow prevention and control, in particular to an anchor chain floating wing type debris flow energy dissipation device and an energy dissipation method.
Background
The debris flow disaster has the characteristics of large kinetic energy, high density and strong impact destructive power, and is a common geological disaster in China. The engineering technical means for preventing and controlling the debris flow are various and have measures of stabilizing, blocking, discharging and the like, for example, an interception dam is built in a valley where the debris flow frequently occurs, and the debris flow is intercepted in a grading manner. The existing debris flow treatment method has the following problems: large engineering quantity, large consumption, high engineering cost, environment damage and the like, and the prevention and treatment effect is usually not ideal.
Disclosure of Invention
In view of the deficiencies in the prior art, it is an object of the present invention to address one or more of the problems in the prior art as set forth above. For example, one of the objects of the present invention is to provide an anchor chain floating wing type debris flow energy dissipater and an energy dissipation method capable of effectively reducing the flow velocity of debris flow.
In order to achieve the aim, the invention provides an anchor chain floating wing type debris flow energy dissipater on one hand. The energy dissipater may comprise: the device comprises a fixing unit, an energy dissipation chain net and a buoyancy lifting unit which are sequentially connected, wherein the fixing unit comprises a plurality of anchor rods, each anchor rod is fixed on bedrock, one outward end of each anchor rod is connected with the front end of the energy dissipation chain net, and the bedrock is bedrock at the bottom of a debris flow circulation area; the energy dissipation chain net is formed by weaving a plurality of chains, wherein two adjacent chains are locked by a plurality of buffer components, each buffer component comprises a first buffer joint, a second buffer joint and a rope for connecting the first buffer joint and the second buffer joint, and the first buffer joint and the second buffer joint are respectively fixed on the two adjacent chains; the buoyancy lifting unit comprises a plurality of buoys connected with the rear end of the energy dissipation chain net, and the buoys are all or partially connected together in parallel.
According to an exemplary embodiment of the anchor chain buoyant wing type debris flow dissipater according to the present invention, the debris flow circulation zone may comprise a debris flow circulation channel zone or a debris flow drainage channel.
According to an exemplary embodiment of the anchor chain buoyant wing type debris flow dissipater according to the present invention, the anchor rods are fixed to the bedrock by a bonding material.
According to an exemplary embodiment of the anchor chain floating wing type debris flow energy dissipater, the outward end of the anchor rod is exposed out of the bedrock and is in a bending state, and the outward end of the anchor rod faces the debris flow flowing direction, namely the side where the debris flow flows away.
According to an exemplary embodiment of the anchor chain buoyant wing type debris flow dissipater according to the present invention, the plurality of anchor rods are fixed side by side or approximately side by side on the bedrock in a first direction, which may be perpendicular or approximately perpendicular to the flow direction of the debris flow, and the plurality of anchor rods are fixed on the bedrock at equal intervals or approximately equal intervals.
According to an exemplary embodiment of the anchor chain floating wing type debris flow energy dissipater, one end of each anchor rod facing outwards is connected with two chains, and buffer assemblies on each chain are spaced at a certain distance.
According to an exemplary embodiment of the anchor chain floating wing type debris flow energy dissipater of the present invention, each of the first and second buffering sections may include a cassette, a wedge, and a fastening bolt, wherein the cassette has a receiving cavity receiving the chain link, and a first bolt hole; the clamping wedge is inserted into the clamping seat and is provided with a second bolt hole opposite to the first bolt hole; the fastening bolt can be inserted into the first and second bolt holes to lock the clamping seat and the clamping wedge.
According to an exemplary embodiment of the anchor chain floating wing type debris flow energy dissipater, a plurality of holes for inserting the ropes can be formed in the first buffering node and the second buffering node.
According to an exemplary embodiment of the anchor chain buoyant wing type debris flow dissipater according to the present invention, the rope may be frictionally movable in the hole.
According to an exemplary embodiment of the anchor chain floating wing type debris flow dissipater according to the present invention, the rope comprises steel strands, steel wire ropes or the like.
According to an exemplary embodiment of the anchor chain floating wing type debris flow energy dissipater, the head of each floating pontoon is an outward convex arc-shaped panel, the inner surface of each arc-shaped panel can incline in the debris flow impact direction, the tail of each floating pontoon is a long strip plate pointing to the debris flow direction, the left end and the right end of the head of each floating pontoon are respectively provided with a clamping groove and a clamping tenon, and the clamping tenon of each floating pontoon can be inserted into the clamping groove of the adjacent floating pontoon.
According to an exemplary embodiment of the anchor chain buoyant wing type debris flow dissipater according to the present invention, a plurality of chains, for example two, may be connected to an outwardly facing end of each of the anchor rods.
According to an exemplary embodiment of the anchor chain floating wing type debris flow energy dissipater of the present invention, the buffering sections on each chain are spaced apart by a certain distance.
According to an exemplary embodiment of the anchor chain floating wing type debris flow energy dissipater according to the present invention, the size of the reserved mesh of the energy dissipation chain net is determined according to the flow rate of the debris flow and the diameter of solid particles in the debris flow.
The invention provides a debris flow energy dissipation method on the other hand. The energy dissipation method can comprise the step of carrying out debris flow energy dissipation by adopting the anchor chain floating wing type debris flow energy dissipation device.
According to an exemplary embodiment of the method of dissipating energy from a debris flow according to the present invention, before using the energy dissipater, the method may further comprise the steps of: and carrying out field investigation on the debris flow basin to determine a proper debris flow circulation area, wherein the anchor chain floating wing type debris flow energy dissipater can be installed in the area.
According to an exemplary embodiment of the method of dissipating energy of a debris flow according to the present invention, the flow area of the debris flow may be determined using methods conventional in the art.
According to an exemplary embodiment of the method of debris flow energy dissipation according to the present invention, the method may further comprise: and according to the survey result, evaluating the property of possibly generating the debris flow so as to determine the installation standard of the energy dissipater.
According to an exemplary embodiment of the debris flow energy dissipation method according to the present invention, the above evaluation method may be a conventional method in the art.
According to an exemplary embodiment of the method of dissipating energy of a debris flow according to the present invention, the installation criteria of the energy dissipater may include: the anchor rods are made of materials, the diameters of the anchor rods are equal to the distance between adjacent anchor rods, the types of chains used by the chain net, the mesh sizes of the chain net, the number and the sizes of the buoys and the like.
Compared with the prior art, the beneficial effects of the invention can include:
(1) the inventive buoy can be produced from inexpensive engineering plastics, the damper section can be cast from metal (e.g. aluminium blocks), and the other components can consist of existing engineering components, thus being extremely low-cost.
(2) The components in the device are all consumable and low-cost components, and the construction is simple and quick, so that all the components which are deformed and damaged can be quickly replaced and supplemented in time after experiencing one or more times of debris flow impact.
(3) After the debris flow occurs, the chain net is buried in the accumulation to play a role in reinforcing the slope body; in addition, the chain net can be lengthened again at the rear end of the original chain net and connected with the floating wings, and the energy dissipation effect on subsequent debris flow can be achieved.
(4) The anchor chain floating wing type debris flow energy dissipation device can absorb the kinetic energy of debris flow slurry and reduce the flow velocity of the debris flow, thereby reducing the impact force and the destructive power of the debris flow.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
figure 1 shows a schematic view of the overall structure of the anchor chain buoyant wing type debris flow dissipater of the present invention;
figure 2 shows an overall lay-flat of the anchor chain buoyant wing type debris flow dissipater of the present invention;
FIG. 3 shows a schematic view of a cushioning assembly of the present invention;
FIG. 4 shows a schematic structural view of a buffer segment of the present invention;
FIG. 5 shows a schematic structural view of the buoy of the present invention;
FIG. 6 shows a schematic view of a floating wing of the present invention;
FIG. 7 is a schematic view of the operational forces of the chain net of the present invention;
fig. 8 shows a force diagram of the anchor of the present invention;
fig. 9 shows a force diagram of the pontoon in the floating wing according to the invention.
Description of the main reference numerals:
10-fixing unit, 11-anchor rod, 20-energy dissipation chain net, 21-chain, 30-buoyancy lifting unit, 31-buoy, 31 a-tenon, 31 b-clamping groove, 31 c-tail, 40-connecting ring, 51-first buffer joint, 51 a-clamping seat, 51 b-clamping wedge, 51 c-fastening bolt, 52-second buffer joint and 53-rope.
Detailed Description
Hereinafter, the anchor chain buoyant wing type debris flow energy dissipater and the energy dissipation method of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
The invention provides an anchor chain floating wing type debris flow energy dissipation device on the one hand. The energy dissipation device has flexibility and can adjust the self flexible energy absorption along with the mud-rock flow state and the flow speed. The energy dissipater can be mainly installed and applied to the high-speed motion stage of slurry of the debris flow and can be installed in the flowing groove area of the debris flow or the bottom of a debris flow discharge guide groove.
In an exemplary embodiment of the present invention, as shown in fig. 1, the energy dissipater may include: the floating unit comprises a fixed unit 10, an energy dissipation chain net (may be simply called a chain net) 20 and a floating unit (may be called a floating wing) 30 which are connected in sequence. The whole direction of the fixed unit, the energy dissipation chain net and the buoyancy lifting unit is along the flow direction of the debris flow. The friction resistance, viscous force and solid particle impact force of the debris flow do work on the main energy dissipation chain net to absorb the kinetic energy of the debris flow.
Wherein the fixing unit 10 may comprise a plurality of anchor rods 11 as shown in figure 2 in a top view of the energy dissipater when laid flat and deployed. The anchor rods 11 are arranged as equidistantly as possible and the rod bodies are made of a metal material, such as finish-rolled deformed steel. One end of the anchor rod 11 may be fixed in the borehole of the bedrock by an anchor rod adhesive material, the other end is exposed in the slurry of the debris flow, and the end portion of the other end may be welded with a connection ring 40. The diameter of the anchor rods 11 should be sufficient to satisfy the dragging force of the chain net and the impact force generated by the debris flow, and the anchoring force of the anchoring section should be sufficient to provide the drawing force. The distribution of the anchor rods 11 may be mainly aligned perpendicular to the flow direction of the debris flow, for example the alignment of the anchor rods 11 may be perpendicular to the flow direction of the debris flow.
The energy dissipating chain mesh 20 may be woven from a plurality of chains 21 (e.g. galvanized steel chains), for example the chain mesh shown in figure 2 is woven from 24 chains 21. The connecting ring 40 at the end of each anchor rod 11 can be connected with two chains 21, and the steel chains on the adjacent anchor rods are locked by a plurality of buffer assemblies 50 according to a certain distance, so that a chain net is woven. The mesh size reserved by the chain net can be determined according to the diameter and the flow speed of solid particles in the debris flow, and can be generally 0.8-1.2 times of the median of the particle diameter, such as the median of the diameter. The smaller the meshes of the chain net, the larger the resistance coefficient to the debris flow, the larger the energy absorption effect to the debris flow, but the too large tension of the chain bars in the chain net is caused by the undersized meshes, so that the chain net needs to be reasonably adjusted according to the main physical parameters and motion parameters of the debris flow.
The end of the energy dissipating chain net 20 may be connected to the buoyant unit 30 through a connection ring 40. The buoyancy lifting unit 30 may be formed by connecting a plurality of buoys 31 in parallel, and is in a lifting body shape as a whole. The buoyancy unit 30 is a key component for suspending the chain net by the impact lift. The float 31 may be a hollow cavity made of engineering plastics (as shown in fig. 5), and a connecting ring 40 may be connected to the bottom of the head of the float 31 for connecting the chain of the energy dissipating chain net 20. The tail part 31c of the pontoon 31 is a backward extension section, and the extension section is provided with a hole for increasing the flow resistance of debris flow, which is helpful for keeping the head direction of the pontoon in a correct flood-facing direction. The bottom surface of the head of the buoy 31 is an inwards concave inclined arc surface, the impact force of the debris flow is converted into lift force, and the upper surface of the head is outwards convex streamline, so that the debris flow can flow through at a high speed and low resistance. The outer sides of the pontoons 31 are provided with dovetail-shaped locking tongues 31a and locking grooves 31b for connecting a certain number of the pontoons 31 to each other to form the entire floating wing as shown in fig. 6. After the float bowl 31 forms the floating wing, the lifting force of the float bowl 31 mainly comes from the inclined plane recessed at the bottom of the float bowl 31 by the debris flow, as shown in fig. 9, when the slurry of the debris flow and the solid particles impact the inclined plane of the float bowl, the inclined plane generates a recoil force, and the lifting force is formed under the combined action of the pulling force of the chain. Therefore, under the continuous action of the actual debris flow, the buoy 31 or the floating wing does not always cling to the ground surface, does not float on the upper surface of the debris flow forever, and swings up and down under the impact of the debris flow.
In this embodiment, fig. 3 shows a schematic view of the buffer assembly locking the adjacent chains, wherein (a) and (b) are respectively two working states of the buffer assembly.
As shown in fig. 3, each of the cushion units 50 includes a first cushion segment 51, a second cushion segment 52, and a rope 53 for connecting the first and second cushion segments. The first buffer joint 51 and the second buffer joint 52 are fixed to two adjacent chains 21, respectively. The first buffering joint and the second buffering joint can be made of metal aluminum with relatively low strength and obvious plasticity, two strands of steel strands penetrating through the first buffering joint and the second buffering joint are fastened through screws inside the first buffering joint and the second buffering joint, and the buffering joints between the two steel chains are connected through the steel strands. When the impact force of larger debris flow particles is received, the steel strands can move in the aluminum buffer joint in a friction mode, and therefore overlarge impact kinetic energy is absorbed.
In the present embodiment, as shown in fig. 4, the first buffering section 51 may include a clamping seat 51a, a clamping wedge 51b, and a fastening bolt 51 c. The clamping seat 51a has a first bolt hole, and the clamping wedge 51b has a second bolt hole.
The chain link can be locked after the wedge 51b is inserted into the cassette 51a, the first bolt hole can be opposite to the second bolt hole, and the fastening bolt 51c can be inserted into the first and second bolt holes to lock the cassette 51a and the wedge 51 b.
After the wedge 51b is inserted into the seat 51a, two reserved grooves, i.e., two V-shaped holes capable of accommodating the rope, are formed therebetween. The fastening bolt 51c has different fastening acting forces on the clamping seat 51a and the clamping wedge 51b, the widths of the two reserved grooves are different, and the friction resistance of the rope in the grooves is different. In other words, the rope can be clamped by the reserved groove between the 51a and the 51b, the groove is an inclined surface relative to the direction of the screw through screw fastening, and the clamping force of the groove on the rope is larger when the screw fastening force is larger.
The buffer joint can buffer the chain net when being impacted by larger stones, can absorb energy to a certain extent, and reduces the damage to the chain. Of course, the present invention is not limited to this, and any fixing member may be used as long as it can perform a cushioning function, and for example, a chain is bound with some soft metal wires to form a cushioning link.
In this embodiment, the anchor rods 11 may be anchored in the bedrock by an anchoring agent. As shown in fig. 8, in order to make the stress reasonable, the drilled hole of the anchor rod 11 is inclined such that the exposed end of the anchor rod 11 is directed downward. Unlike the anchor rod which generally uses a tray and a nut, the anchor rod 11 does not need the tray and the nut, and the anchor rod 11 leaks a length outside the ground surface and is bent towards the mud-rock flow direction during construction, so that the shearing force in the rod body of the anchor rod 11 is reduced, and the anchoring is mainly performed by the tension force. The anchor rods 11 may be conventional metal anchor rods and the connecting rings 40 may be welded to the ends of the anchor rods 11. As shown in fig. 8, the anchor rods 11 mainly bear the drawing force F of the chain netcDrawing force caused by a small amount of friction outside the earth surface and passively provided by surface soilCounter force dPrTensile strength F provided by anchoring agentT。
In this embodiment, the chain net of the present invention is used as a main component acting on the debris flow during operation, and reduces kinetic energy of the debris flow through friction, viscous force and collision force applied to slurry of the debris flow by the steel chains, the buffer joints and the steel strands in the chain net, and absorbs kinetic energy through plastic deformation of the buffer joints in the chain net for impact kinetic energy of large-particle rock lumps in the debris flow. As shown in figure 7, the anchor rods and the floating wings can provide counter force for the chain net, and the anchor rods provide counter force F for the chain net at the bottom of the debris flowcThe floating wings provide upward and downstream pulling force F for the chain netw。
In this embodiment, the floating wing can convert the impact force and chain net pulling force of the debris flow into the lift force, and suspend the chain net in the slurry space of the debris flow. As shown in fig. 9, the front part of the pontoon 31 receives the tension F of the chain net through the connection ringw(ii) a The head of the buoy 31 is in a lifting body configuration and forms a lifting force F under the impact of debris flows(ii) a The longer tail 31c of the float 31 generates a dragging force F in the flow direction due to the larger flow resistanced. When the head of the pontoon 31 is not facing the debris flow, the towing force FdA moment is created that rotates buoy 31 to the correct position. In addition, the hole at the tail part of the buoy 31 can be lengthened with a flexible or semi-flexible member, so that the stress condition at the tail part of the buoy 31 can be adjusted.
In this embodiment, the material, size, installation position, etc. of each component can be determined according to actual conditions, for example, the material and diameter of the anchor rods and the distance between adjacent anchor rods, the type of steel chain used for the chain net, the mesh size of the chain net, the number and size of the buoys, etc. can be determined according to conditions of field exploration, the shape of the predicted debris flow, etc.
After the deposition thickness of the debris flow in the debris flow groove reaches a certain degree, the chain net is buried in the accumulation to play a role in reinforcing the slope body; at the moment, the chain net can be lengthened again at the rear end of the original chain net, and the floating wings are connected again, so that the energy dissipation effect on the subsequent debris flow is achieved.
The invention provides a debris flow energy dissipation method on the other hand. The energy dissipation method may include: the anchor chain floating wing type debris flow energy dissipation device is used for debris flow energy dissipation, namely, the kinetic energy of debris flow slurry in motion is reduced, so that the impact force is reduced, and the disaster risk is reduced.
Specifically, the energy dissipation method may include:
(1) carrying out on-site investigation on the debris flow basin, and fully investigating and researching physical indexes of loose deposits, space development conditions, debris flow force parameters and the like; and calculating and evaluating the flow velocity, the impact force, the thickness, the friction coefficient, the viscosity coefficient and the like of the debris flow.
(2) And selecting a proper debris flow circulation area according to the survey data and data. And designing proper steel chain models, mesh sizes, anchor rod intervals, floating wing sizes and the like.
(3) And removing loose deposits in the groove to expose the surface of the foundation rock, drilling an anchor rod drilling hole by using an anchor rod drilling machine (a self-drilling anchor rod can be used, and the surface deposits do not need to be removed at the moment), and after the anchor rod is installed and the solidification strength of the anchoring agent reaches the standard, bending the anchor rod free on the ground downwards towards the groove to enable the connecting ring at the rod end to be basically close to the ground.
(4) And locking the steel chain on the connecting ring at the end of the anchor rod, and weaving the steel chain into a net by using the buffer joint and the steel strand.
(5) The buoys are connected to the tail ends of the chain nets one by one and are fixed by the clamping tenons and the clamping grooves.
So far, the initial installation of anchor chain floating wing formula mud-rock flow energy dissipater finishes, and later stage repair maintenance work can be gone on according to actual change.
In summary, the advantages of the anchor chain floating wing type debris flow energy dissipation device and the energy dissipation method of the invention can include: the debris flow energy dissipation device is simple and convenient in structure, convenient to install and use, low in cost and high in efficiency, and can effectively reduce the flow velocity of debris flow, particularly reduce the impact velocity of coarse particles in the debris flow, reduce impact kinetic energy and reduce destructive power. The debris flow energy dissipation method can effectively reduce the flow velocity of the debris flow and has good effect.
Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. An anchor chain floating wing type debris flow energy dissipater, characterized in that the energy dissipater comprises: a fixed unit, an energy dissipation chain net and a floating unit which are connected in sequence, wherein,
the fixing unit comprises a plurality of anchor rods, each anchor rod is fixed on bedrock, one outward end of each anchor rod is connected with the front end of the energy dissipation chain net, and the bedrock is bedrock at the bottom of a circulation area of the debris flow;
the energy dissipation chain net is formed by weaving a plurality of chains, wherein two adjacent chains are locked by a plurality of buffer components, each buffer component comprises a first buffer joint, a second buffer joint and a rope for connecting the first buffer joint and the second buffer joint, and the first buffer joint and the second buffer joint are respectively fixed on the two adjacent chains;
the buoyancy lifting unit comprises a plurality of buoys connected with the rear end of the energy dissipation chain net, and all or part of the buoys are connected together in parallel;
the first buffer joint and the second buffer joint comprise clamping seats, clamping wedges and fastening bolts, wherein the clamping seats are provided with accommodating cavities for accommodating chain links of the chain and first bolt holes; the clamping wedge is inserted into the clamping seat and is provided with a second bolt hole opposite to the first bolt hole; the fastening bolt can be inserted into the first and second bolt holes to lock the clamping seat and the clamping wedge.
2. The anchor chain floating wing type debris flow energy dissipater according to claim 1, wherein the anchor rods are obliquely inserted into the bedrock, one outward ends of the anchor rods are exposed out of the bedrock and are in a bending state, and one outward ends of the anchor rods face the direction of debris flow.
3. The anchor chain buoyant wing type debris flow energy dissipater of claim 1, wherein the plurality of anchor rods are fixed side by side or approximately side by side on the bedrock in a first direction, the first direction being perpendicular or approximately perpendicular to the flow direction of the debris flow, the plurality of anchor rods being fixed on the bedrock at equal intervals or approximately equal intervals.
4. The anchor chain floating wing type debris flow energy dissipater according to claim 1, wherein two chains are connected to one end of each anchor rod facing outwards, and the buffering assemblies on each chain are spaced at a certain distance.
5. The anchor chain floating wing type debris flow energy dissipater according to claim 1, wherein a plurality of holes for inserting the ropes are formed in the first buffering section and the second buffering section.
6. The anchor chain floating wing type debris flow energy dissipation device of claim 1, wherein the head of each floating pontoon is an outward-protruding arc-shaped panel, the inner surface of each arc-shaped panel can incline in the debris flow impact direction, the tail of each floating pontoon is a long strip plate pointing to the debris flow direction, the left end and the right end of the head of each floating pontoon are respectively provided with a clamping groove and a clamping tenon, and the clamping tenon of each floating pontoon can be inserted into the clamping groove of the adjacent floating pontoon.
7. An energy dissipation method for mud-rock flow, which is characterized by comprising the step of carrying out mud-rock flow energy dissipation by using the anchor chain floating wing type mud-rock flow energy dissipation device as claimed in any one of claims 1-6.
8. A method of debris flow energy dissipation according to claim 7, wherein before using the energy dissipater, the method further comprises the steps of:
and carrying out field investigation on the debris flow basin to determine a proper debris flow circulation area.
9. A method of debris flow energy dissipation according to claim 8, wherein before using the energy dissipater, the method further comprises the steps of:
and according to the survey result, evaluating the property of possibly generating the debris flow, and further determining the installation standard of the energy dissipater.
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| CN109837863A (en) * | 2019-01-28 | 2019-06-04 | 长江航道规划设计研究院 | A kind of river erosion control promotees silt device and its installation method |
| CN210562017U (en) * | 2019-07-17 | 2020-05-19 | 布鲁克（成都）工程有限公司 | Mud-rock flow flexible blocking net and mud-rock flow flexible blocking dam |
| CN111321700A (en) * | 2020-01-03 | 2020-06-23 | 四川大学 | Overflowing energy dissipation type ecological bank protection method for anti-scouring and anti-landslide barrier plugs |
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