CN213625436U

CN213625436U - Dyke foot protective structure of river levee

Info

Publication number: CN213625436U
Application number: CN202022006860.XU
Authority: CN
Inventors: 马立; 李佳伟; 赵心宇; 孙龙; 伍美华
Original assignee: Hangzhou Water Resources And Hydropower Survey And Design Institute Co ltd
Current assignee: Hangzhou Water Resources And Hydropower Survey And Design Institute Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-07-06
Anticipated expiration: 2030-09-14

Abstract

The application relates to a dike foot protection structure of a river bank, which comprises a reverse filtering layer for preventing dike feet from being scoured, an energy dissipation layer for pressing the reverse filtering layer and dissipating energy of rivers, and a connecting component for connecting the reverse filtering layer and the energy dissipation layer to form a whole; the connecting assembly comprises an embedded part embedded below the inverted filter layer, and a locking part, wherein one end of the locking part is connected to the embedded part, the other end of the locking part extends upwards, and the upwards extending end of the locking part is connected to the energy dissipation layer. This application has the effect of increase to dyke foot protection intensity.

Description

Dyke foot protective structure of river levee

Technical Field

The application relates to the field of river bank protection, in particular to a concave bank embankment.

Background

For the mountain river channel, the rapid water coming and the rapid flow speed are the remarkable characteristics of mountain flood, and meanwhile, the mountain river channel is rich in silt and pebble, so that the rapid water flow can flush silt and pebble in the river channel to the downstream, the river channel at the turning part of the downstream river channel is impacted and deepened, the silt and pebble at the foot of the river bank are scoured and reduced, and the side of the river bank facing water is suspended, so that the river bank is finally overturned.

In view of the above, the inventor believes that the key point for governing the river course in the mountainous area is to protect the dike feet of the river bank, and the related art of the river bank has the defect of insufficient protection of the dike feet.

SUMMERY OF THE UTILITY MODEL

In order to increase the protection strength to the dike foot, the application provides a dike foot protection structure of a river dike.

The application provides a dyke foot protective structure of river levee adopts following technical scheme: a dike foot protection structure of a river bank comprises a reverse filtering layer for preventing dike feet from being scoured, an energy dissipation layer for pressing the reverse filtering layer and dissipating energy of rivers, and a connecting component for connecting the reverse filtering layer and the energy dissipation layer to form a whole; the connecting assembly comprises an embedded part embedded below the inverted filter layer, and a locking part, wherein one end of the locking part is connected to the embedded part, the other end of the locking part extends upwards, and the upwards extending end of the locking part is connected to the energy dissipation layer.

The river is extremely erosive, it is in order to make its river surface widen, the flow velocity is more smooth, will erode towards both banks continuously, however, if the place where it flows through, the hardness degree of both banks is different, then on the harder side, the river erodes motionless, will be blocked and turned round, so have formed "river bend", after the river bend forms, the river continues to bring the silt stream, but because the river is to the constraint of the river, make the river in the place where the turn, the main impulsive force is to the concave bank, the speed is greater, make the scouring more serious, therefore the river bed of the concave bank, the deeper that is eroded too, through adopting the above-mentioned technical scheme, use the energy dissipation layer to carry on the energy dissipation to the rivers, and through setting up the back filter layer, guarantee the sandstone in the river channel is not washed away by the scouring;

simultaneously, through the cooperation of built-in fitting and locking piece with energy dissipation layer, inverted filter formation a whole, increase holistic anti-impact ability, come to protect the dyke foot of river course.

Preferably, the energy dissipation layer includes the netted stone bag layer of butt in the inverted filter top surface, keeps apart the river course and the netted stone box layer of inverted filter, and wherein the vertical setting in netted stone box layer, and the top and the netted stone bag layer butt on netted stone box layer.

Through adopting above-mentioned technical scheme, it is spacing as the level to use the net stone case layer to come, uses the net stone bag layer to carry out vertical spacing, better presses the protection to the inverted filter, and simultaneously, has great gap between the building stones on net stone bag layer and net stone case layer, and the earth that the flood was kept in it after the flood provides the place for vegetation, is favorable to ecological construction in the river course.

Preferably, a plurality of net stone boxes are used on the net stone box layer, a plurality of net stone bags are used on the net stone bag layer, and the net stone bags, the net stone bags and the net stone boxes are fixed through binding of steel bars.

Through adopting above-mentioned technical scheme, the wholeness that uses reinforcement's mode to increase the structure makes the energy dissipation layer form a whole, not only is favorable to the energy dissipation, has still promoted whole dyke foot protection machanism's wholeness, anti impact capacity greatly.

Preferably, the embedded part comprises first embedded rods, a plurality of the first embedded rods are arranged along the water flow direction, the plurality of first embedded rods are connected through second embedded rods perpendicular to the water flow direction, the plurality of second embedded rods are arranged at equal intervals, and the first embedded rods are fixedly connected with the intersection of the second embedded rods.

Through adopting above-mentioned technical scheme, use pre-buried net to come interconnect to form similar netted structure, increase the wholeness of each pre-buried pole, make pre-buried pole more firm in the underground be difficult for shaking.

Preferably, the first embedded rod and the second embedded rod both use channel steel, and the opening of the channel steel is arranged upwards.

Through adopting above-mentioned technical scheme, the channel-section steel is convenient for purchase on the one hand, and on the other hand channel-section steel has an opening, when burying the channel-section steel underground, can be through coming into the channel-section steel with opening mode up to the soil layer is to the confining force of channel-section steel, further stabilizes the channel-section steel, makes the difficult emergence of channel-section steel rock.

Preferably, the locking piece is including connecting in the built-in fitting and the stock that upwards extends, and the one end that the stock kept away from the built-in fitting penetrates the energy dissipation layer to be connected with the locking lever in penetrating the end, the locking lever extends along the direction of perpendicular to stock.

Through adopting above-mentioned technical scheme, at first be connected the one end and the built-in fitting of stock, guarantee the other end and the energy dissipation layer effective connection of stock through the locking lever afterwards and be a whole, finally improve the holistic joint strength of locking piece.

Preferably, the energy dissipation layer includes the net stone bag layer of butt in the inverted filter top surface, a plurality of net stone bags are used on net stone bag layer, the locking piece still includes that one end is connected the stock and the other end is connected in the locking of the net stone bag body and colludes.

Through adopting above-mentioned technical scheme, use the locking to collude supplementary locking stock, increase the joint strength on stock and energy dissipation layer on the one hand, on the other hand also colludes the relative position with the netted stone bag through the locking and judges the problem that whether there is the position skew in the netted stone bag when installing the stock.

Preferably, the inverted filter layer is mainly formed by paving a coarse particle layer and a crushed stone layer, the particle size of the coarse particle layer is 0.05 cm-2 cm, and the particle size of the crushed stone layer is 2 cm-6 cm; and a macadam isolation layer is arranged between the inverted filter layer and the energy dissipation layer, and the particle size of the macadam isolation layer is 6-20 cm.

The soil water can smoothly flow through the soil, but the phenomenon that soil particles are blocked is called reverse filtration, and by adopting the technical scheme, the soil at the position of the dyke foot is protected by the rough-finishing layer and the crushed stone layer, so that the water permeating into the dyke foot can flow out, the soil layer of the dyke foot cannot be taken out in the flowing-out process, and the effect of protecting the dyke foot is achieved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the impact force of water flow is buffered through the energy dissipation layer, and the soil loss of the dike foot is reduced through the inverted filter layer, so that the effect of protecting the dike foot is achieved;

2. through the setting of built-in fitting and locking piece, connect energy dissipation layer, inverted filter and form a whole to increase overall structure's anti-impact ability, better protection dyke foot.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a cross-sectional view of an embodiment of the present application.

Fig. 3 is a schematic structural view of the connecting assembly and a part of the expanded stone bag.

Description of reference numerals: 1. a reverse filtering layer; 11. a coarse particle layer; 12. a crushed stone layer; 2. an energy dissipation layer; 21. a stone bag layer; 22. a net stone box layer; 3. a connecting assembly; 31. a first pre-buried rod; 32. a second pre-buried rod; 33. an anchor rod; 34. a locking lever; 4. A macadam isolation layer; 5. a river levee; 6. a base plate; 7. and (5) cushion coating.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The river is extremely erosive, in order to widen the river surface, the flow velocity is smoother, and the river can erode towards the two banks continuously, however, if the hardness of the two banks is different at the place where the river flows through, the erosion of the river is still at the hard side, the river can be blocked and turned, so that 'river curve' is formed, after the river curve is formed, the river continues to carry silt flow, but because the river channel is bound to the river, the main impulsive force of the river at the turning place can rush towards the concave bank, the speed is higher, the scouring is more serious, so that the riverbed of the concave bank can be eroded more deeply, particularly in the mountain region, the water coming and rushing, the water flow is relatively faster, the feet of the river bank 5 need to be protected, otherwise, the service life of the hydraulic engineering can be greatly reduced.

The embodiment of the application discloses embankment foot protective structure of river levee. Referring to fig. 1, the structure includes a river bank 5 for blocking a river, a bottom plate 6 for supporting a retaining wall, a supporting bottom plate 6, and a mat 7 for supporting the retaining wall, and the bottom plate 6 and the mat 7 are generally called as dikes.

The river basin also comprises a reverse filtering layer 1 for preventing dikes from being scoured, an energy dissipation layer 2 for dissipating energy to rivers by pressing the reverse filtering layer 1, and a connecting component 3 for connecting the reverse filtering layer 1 and the energy dissipation layer 2 into a whole.

The phenomenon that water in soil can smoothly flow through and soil particles are blocked is called reverse filtration, specifically, a reverse filtration layer 1 is mainly formed by paving a coarse particle layer 11 and a crushed stone layer 12, the particle size of the coarse particle layer 11 is 0.05 cm-2 cm, and the particle size of the crushed stone layer 12 is 2 cm-6 cm; thereby protecting the soil at the dike foot, enabling the water permeating into the dike foot to flow out, not washing away the soil layer of the dike foot in the flowing-out process, and playing the role of protecting the dike foot. Still be equipped with rubble isolation layer 4 between inverted filter 1 and energy dissipation layer 2, the particle diameter of rubble isolation layer 4 is 6cm to 20cm, prevents that the too big particle diameter difference of inverted filter 1 and energy dissipation layer 2 from leading to inverted filter 1 to run off fast.

The energy dissipation layer 2 includes the netted stone bag layer 21 of butt in the 1 top surface of inverted filter, keep apart the river course and the netted stone box layer 22 of inverted filter 1, netted stone box layer 22 uses a plurality of netted stone boxes, netted stone bag layer 21 uses a plurality of netted stone bags, the alloy steel mesh is all used with the netted stone bag to the netted stone box, and all be equipped with the building stones that the particle diameter is 20cm to 40cm, not only play the effect to the rivers energy dissipation, can also press protection inverted filter 1, make inverted filter 1 can not corroded by the river easily. Meanwhile, a large gap is formed between stones, and soil reserved in the stone provides a place for plant growth after flood, so that ecological construction in a river channel is facilitated.

The setting of netted stone bag layer 21 is in the top of inverted filter 1, from vertical direction downwards according to pressing at the top surface of inverted filter 1, the vertical setting of netted stone box layer 22, and the top and the netted stone bag layer 21 butt of netted stone box layer 22 to keep apart external river and inverted filter 1's side, also play the supporting role simultaneously, prevent that the soil layer from flowing in to the river.

In order to ensure the connection strength of the energy dissipation layer 2, the net stone bags, the net stone boxes and the net stone boxes are fixedly bound by steel bars.

As shown in fig. 2 and 3, the connection assembly 3 includes an embedded part embedded below the inverted filter layer 1, and the embedded part includes a first embedded rod 31 arranged along the water flow direction and a second embedded rod 32 perpendicular to the water flow direction. First embedded pole 31 and second embedded pole 32 all are equipped with a plurality ofly, and interval 1m arranges between the first embedded pole 31, and the length 2m of second embedded pole 32, and interval 1m arranges between the second embedded pole 32, and first embedded pole 31 welds at crossing department with second embedded pole 32 to form netted embedded structure, increase the bulk joint strength of built-in fitting and soil layer.

Simultaneously, first built-in fitting all uses the channel-section steel of opening orientation with the second built-in fitting, and the channel-section steel is convenient for purchase on the one hand, and on the other hand channel-section steel itself has the opening, when burying the channel-section steel underground, can fill in the channel-section steel to the soil material of anti-filtering layer 1 through the mode with opening up to the increase soil layer is to the spacing power of channel-section steel, further stabilizes the channel-section steel, makes the channel-section steel be difficult for taking place to rock, reaches the effect of increase built-in fitting and soil layer joint strength, makes the built-in fitting be difficult for shaking in.

As shown in fig. 2, the connecting assembly 3 further includes a locking member having one end connected to the embedded part and the other end extending upward, and the upward extending end of the locking member is connected to the pocket layer 21. The locking piece is including connecting in built-in fitting and the ascending stock 33 that extends, and the diameter of stock 33 is 2cm and one end and channel-section steel welding, and the other end of stock 33 penetrates energy dissipation layer 2 to be connected with locking lever 34 in penetrating the end. The locking bar 34 is 20cm long and extends in a direction perpendicular to the anchor rods 33 so as to effectively connect the anchor rods 33 with the dissipater 2 as a whole and ultimately improve the overall connection strength of the locking element.

The locking piece still includes that one end is connected stock 33 and the other end is connected and is colluded in the locking of the pocket body of netted stone bag, colludes through the locking to be connected with the netted stone bag, utilizes the metal construction on the netted stone bag, further promotes the joint strength to stock 33, makes connection built-in fitting and energy dissipation layer 2 that stock 33 can be better. Meanwhile, the locking hook is connected to the expanded stone bag, and the problem that whether the expanded stone bag is inclined or not can be reversely judged through the position of the metal grid on the expanded stone bag relative to the locking hook.

The implementation principle of the embankment foot protective structure of the river bank in the embodiment of the application is as follows: the net stone bag layer 21 and the net stone box layer 22 are used for dissipating energy of water flow, and the inverted filter layer 1 is arranged to ensure that sandstone and soil in the river channel are not washed away;

simultaneously, through the cooperation of built-in fitting and locking piece with energy dissipation layer 2, inverted filter 1 formation a whole, increase holistic anti-impact ability, realize the protection to river levee foot.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A dyke foot protective structure of river levee which characterized in that: comprises a reverse filtering layer (1) for preventing dikes from being scoured, an energy dissipation layer (2) which presses the reverse filtering layer (1) and dissipates energy to rivers, and a connecting component (3) which connects the reverse filtering layer (1) and the energy dissipation layer (2) into a whole;

the connecting assembly (3) comprises an embedded part embedded below the inverted filter layer (1) and a locking part, one end of the locking part is connected to the embedded part, the other end of the locking part extends upwards, and the upwards extending end of the locking part is connected to the energy dissipation layer (2).

2. A bank protection structure of a river bank according to claim 1, wherein: the energy dissipation layer (2) comprises a net stone bag layer (21) abutted to the top surface of the inverted filter layer (1) and a net stone box layer (22) for isolating the river channel from the inverted filter layer (1), wherein the net stone box layer (22) is vertically arranged, and the top of the net stone box layer (22) is abutted to the net stone bag layer (21).

3. A bank protection structure of a river bank according to claim 2, wherein: a plurality of net stone boxes are used on the net stone box layer (22), a plurality of net stone bags are used on the net stone bag layer (21), and the net stone bags are fixed through binding of steel bars, the net stone bags and the net stone boxes.

4. A bank protection structure of a river bank according to claim 1, wherein: the embedded part comprises first embedded rods (31), a plurality of the first embedded rods (31) are arranged along the water flow direction in a through-length mode, the plurality of first embedded rods (31) are connected through second embedded rods (32) perpendicular to the water flow direction, the plurality of second embedded rods (32) are arranged at equal intervals, and the first embedded rods (31) are fixedly connected with the second embedded rods (32) at the intersection.

5. A river levee foot-protecting structure according to claim 4, wherein: first pre-buried pole (31), second pre-buried pole (32) all use the channel-section steel, and the opening of channel-section steel sets up.

6. A bank protection structure of a river bank according to claim 1, wherein: the locking piece is including connecting in built-in fitting and the stock (33) that upwards extends, and the one end that the built-in fitting was kept away from in stock (33) penetrates energy dissipation layer (2) to be connected with locking lever (34) in penetrating the end, locking lever (34) extend along the direction of perpendicular to stock (33).

7. A bank protection structure of a river bank according to claim 1, wherein: the energy dissipation layer (2) includes butt in the netted stone bag layer (21) of inverted filter (1) top surface, a plurality of netted stone bags are used in netted stone bag layer (21), the locking piece still includes that one end is connected stock (33) and the other end is connected the locking of the netted stone bag body and is colluded.

8. A bank protection structure of a river bank according to claim 1, wherein: the inverted filter layer (1) is mainly formed by paving a coarse particle layer (11) and a gravel layer (12), wherein the particle size of the coarse particle layer (11) is 0.05 cm-2 cm, and the particle size of the gravel layer (12) is 2 cm-6 cm; a macadam isolation layer (4) is arranged between the inverted filter layer (1) and the energy dissipation layer (2), and the particle size of the macadam isolation layer (4) is 6 cm-20 cm.