Single-channel water retaining and drainage structure capable of being rapidly constructed

Abstract

The invention relates to the technical field of water retaining and drainage structures, and discloses a single-channel water retaining and drainage structure capable of being rapidly constructed, which comprises an upstream dam, a middle dam, a downstream dam and at least one drainage pipe which are arranged in a water channel, and the upstream dam, the middle dam and the downstream dam are sequentially arranged at intervals in the flowing direction of water flow in the water channel. The water channel is provided with a water facing area, a water separating area and a water stopping area. The drainage pipe is provided with a water inlet end and a drainage end and sequentially penetrates through the upstream dam, the middle dam and the downstream dam, the water inlet end extends into the upstream area, the drainage pipe extends to the outside of the water channel, the drainage end extends to the drainage area, and water in the upstream area enters the drainage pipe from the water inlet end and is guided to the drainage area through the drainage pipe. The water is discharged into the water discharging area from the water discharging end; the water inlet end is provided with a water inlet, and the water inlet is provided with a filter screen layer formed by weaving metal wires.

Description

Technical Field

[0001] The invention patent relates to the technical field of water retaining and drainage structures, specifically, to a single-channel water retaining and drainage structure that can be constructed quickly. Background Art

[0002] Culverts refer to drainage channels set under the roadbed in highway construction to allow the highway to pass through the canal smoothly without hindering traffic. This structure allows water to flow under the highway and is used to drain floods across natural valleys and depressions. Gullies are grooves formed by intermittent water erosion on the surface. They usually appear in areas with complex geological conditions such as hills and mountains, and are the largest type of erosion gullies.

[0003] When sudden floods occur, the water flow is large and the water from culverts, gullies, and ditches collapses the slopes, emergency rescue and repair of the collapsed parts are required to avoid large landslides or road collapses.

[0004] In the prior art, when emergency rescue is carried out, it is necessary to intercept and drain the water in the culvert and gully to prevent the water from scouring the slope, and then carry out emergency rescue and repair of the collapsed part. However, due to the factors of large water flow, urgent time and site limitations, there is currently no better water interception and diversion structure for intercepting and draining the water in the culvert.

[0005] Therefore, the present invention proposes a single-channel water-blocking and diversion structure that can be constructed quickly, so that when water flows, on the one hand, a water-blocking dam can be quickly constructed and diversion can be carried out to prevent the water from continuing to scour the lower part and cause the landslide to expand, and on the other hand, construction opportunities can be created for the lower landslide. Summary of the invention

[0006] The object of the present invention is to provide a single-channel water interception and diversion structure that can be constructed quickly, aiming to solve the problem of intercepting and diverting water in a waterway in the prior art.

[0007] The present invention is implemented as follows: a single-channel water interception and diversion structure that can be quickly constructed includes a water-incoming dam, an intermediate dam, a water-receiving dam, and a drainage pipe arranged in a waterway. The water-incoming dam, the intermediate dam, and the water-receiving dam are arranged in sequence and spaced apart along the flow direction of the water flow in the waterway. The waterway has a water-incoming area, a water-isolating area, and a water-stopping area. The water-incoming area is formed in front of the water-incoming dam, the water-isolating area is formed between the water-incoming dam and the water-receiving dam, the water-stopping area is formed behind the water-receiving dam, and the intermediate dam is arranged in the water-isolating area.

[0008] The drainage pipe has a water inlet end and a drainage end. The drainage pipe passes through the upstream dam, the middle dam and the downstream dam in sequence. The water inlet end extends to the upstream area, the drainage pipe extends to the outside of the waterway, and the drainage end extends to the drainage area. The water in the upstream area enters the drainage pipe from the water inlet end, is guided to the drainage area by the drainage pipe, and is discharged to the drainage area from the drainage end.

[0009] The water inlet end has a water inlet, the water inlet is provided with a filter layer formed by weaving metal wire strips, the outer periphery of the filter layer is provided with a rotating ring, the rotating ring is arranged along the circumference of the filter layer, and the rotating ring is rotatably connected to the outer periphery of the water inlet end;

[0010] The filter layer is convex away from the water inlet and is spherical, and the filter layer surrounds a convex space arranged toward the water inlet; the rotating ring extends outward to form a plurality of blades, and the plurality of blades are arranged around the circumference of the rotating ring at intervals; the inner ends of the blades are butted against the rotating ring, and the outer ends of the blades are arranged forwardly away from the water inlet, and the inclination angles of the plurality of blades are different, and the plurality of blades surround a water inlet area that is larger in the front and smaller in the back;

[0011] When the water in the water-facing area flows toward the water inlet, the water drives the filter layer to rotate at the water inlet through the plurality of blades, so as to accelerate the water to pass through the filter layer and enter the water inlet.

[0012] Furthermore, the water-incoming dam is formed by stacking a plurality of water-incoming sand bags from top to bottom, and adjacent water-incoming sand bags are laterally staggered along the height direction of the water-incoming dam.

[0013] Furthermore, the drainage pipe has a built-in water-incoming section embedded in the water-incoming dam, and the water inlet end of the drainage pipe extends outside the water-incoming dam and is exposed in the water-incoming area.

[0014] Furthermore, the middle dam is formed by quickly setting cement soil filling in the water-proof area, and the drainage pipe has a middle built-in section embedded in the middle dam.

[0015] Furthermore, the backwater dam is formed by stacking a plurality of backwater sand bags from top to bottom, and adjacent backwater sand bags are arranged in a transverse staggered manner along the height direction of the backwater dam.

[0016] Furthermore, the drainage pipe has a backwater built-in section embedded in the backwater dam. After the drainage pipe moves through the backwater dam, it extends outward in a direction deviating from the waterway, extending the drainage end into the drainage area.

[0017] Furthermore, the middle dam has a front end wall facing the upstream dam and a rear end wall facing the downstream dam, the front end wall is inclined backward away from the upstream dam, and the rear end wall is inclined forward away from the downstream dam; the upstream pull plate is inclined backward and rests on the middle dam, and the downstream dam is inclined forward and rests on the middle dam.

[0018] Furthermore, the filter layer includes a middle part and a ring-shaped outer part, the outer part is arranged around the outer circumference of the middle part, and an annular elastic band is provided between the outer circumference of the middle part and the inner circumference of the outer part, and the elastic band elastically combines the middle part and the outer part into one; the middle part and the outer part are respectively protruded away from the water inlet, and the rotating ring is arranged on the outer circumference of the outer part.

[0019] Furthermore, the rotating ring is connected to two symmetrically arranged elastic sheets, the outer ends of the elastic sheets movably abut against the rotating ring, the inner ends of the elastic sheets extend into the protruding space and are arranged obliquely toward the middle of the middle part, and the outer ends of the elastic sheets form abutment ends abutting against the middle of the middle part;

[0020] The abutting end is spherical, and a plurality of through holes are provided in the elastic sheet, and the plurality of through holes penetrate the elastic sheet along the flow direction of the water body; the elastic sheet has an end face facing the water body, and the end face facing the water body is concave backward away from the water inlet to form a plurality of concave grooves, and the plurality of concave grooves are arranged at intervals along the length direction of the elastic sheet;

[0021] The middle part of the middle portion has a groove area formed in the protruding space, the diameter of the groove area is larger than the diameter of the abutting end, and the abutting end is movably placed in the groove area; when the water in the water-facing area impacts the filter layer, the middle portion reciprocates elastically deforms relative to the outer portion, and the elastic sheet swings with the reciprocating elasticity.

[0022] Furthermore, there are longitudinal gaps and transverse gaps between adjacent water-facing sand bags, and geotextiles in a grid are arranged in the longitudinal gaps and transverse gaps, and the geotextiles have a plurality of special-shaped holes, and a plurality of elastic strips are arranged in the special-shaped holes, and the plurality of elastic strips are arranged in a vertical and horizontal cross pattern, and the plurality of elastic strips are respectively against the adjacent water-facing sand bags.

[0023] Compared with the prior art, the single-channel water interception and diversion structure provided by the present invention can be constructed quickly. It uses the front water interception dam, the middle interception dam and the back water interception dam to form a whole, intercepts the water in the waterway, and uses the water diversion pipe to divert the water in the front water area to the drainage area, thereby achieving the effect of water interception and diversion, so that maintenance personnel can carry out emergency rescue construction; secondly, by arranging a rotating filter layer, impurities can be intercepted, and the intercepted impurities can be quickly separated from the filter layer, and the water in the front water area can be quickly diverted to the water inlet area, so as to quickly drain and drain. In this way, the overall structure is simple, and it can be constructed even under the impact of water. The front water interception dam, the middle interception dam and the back water interception dam can be quickly constructed. The construction is fast, simple, efficient, and economical. It is suitable for a variety of scenarios, is not limited by the site, and has a good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic front view of a single-channel water interception and diversion structure that can be quickly constructed provided by the present invention;

[0025] Figure 2 is a schematic front view of the filter layer provided by the present invention;

[0026] Figure 3 is a schematic cross-sectional view of the filter layer provided by the present invention;

[0027] Figure 4 is a schematic cross-sectional view of the elastic sheet provided by the present invention;

[0028] Figure 5 It is a front view schematic diagram of the combination of the special-shaped hole and the elastic strip provided by the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0031] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] Reference Figure 1-5 The figure shows a preferred embodiment of the present invention.

[0033] The single-channel water interception and diversion structure can be constructed quickly and can be used in waterways, including culverts, tunnels and other waterways that require interception and diversion.

[0034] The single-channel water retaining and diversion structure that can be quickly constructed includes a water-incoming dam 100, an intermediate dam 200, a water-retaining dam 300 and a drainage pipe 400 arranged in the waterway. The water-incoming dam 100, the intermediate dam 200 and the water-retaining dam 300 are arranged in sequence along the flow direction of the water in the waterway. The waterway has a water-incoming area, a water-isolating area and a water-stopping area. The water-incoming area is formed in front of the water-incoming dam 100, the water-isolating area is formed between the water-incoming dam 100 and the water-retaining dam 300, the water-stopping area is formed behind the water-retaining dam 300, and the intermediate dam 200 is arranged in the water-isolating area.

[0035] Specifically, one or more water diversion pipes 400 are designed according to the on-site long water flow conditions.

[0036] The drainage pipe 400 has an inlet end and a outlet end. The drainage pipe 400 passes through the upstream dam 100, the middle dam 200 and the downstream dam 300 in sequence. The inlet end extends to the upstream area, the drainage pipe 400 extends to the outside of the waterway, and the outlet end extends to the drainage area. The water in the upstream area enters the drainage pipe 400 from the inlet end, is led to the drainage area by the drainage pipe 400, and is discharged to the drainage area from the outlet end.

[0037] The water in the waterway can be intercepted by the upstream dam 100, the middle dam 200 and the downstream dam 300, and the water in the upstream area can be drained to the drainage area by the drainage pipe 400 instead of continuing to flow along the waterway, thereby preventing the water from scouring the slopes and making it easier for maintenance personnel to carry out emergency rescue work.

[0038] The water inlet end has a water inlet, which is provided with a filter layer 500 woven from metal wire strips. The outer periphery of the filter layer 500 is provided with a rotating ring 505, which is arranged around the circumference of the filter layer 500 and is rotatably connected to the outer periphery of the water inlet end.

[0039] The filter layer 500 protrudes away from the water inlet in a spherical shape, and the filter layer 500 surrounds a protruding space 507 arranged toward the water inlet; the rotating ring 505 extends outward to form a plurality of blades 600, and the plurality of blades 600 are arranged around the circumferential interval of the rotating ring 505; the inner ends of the blades 600 are docked on the rotating ring 505, and the outer ends of the blades 600 are arranged tilted forward away from the water inlet end, and the inclination angles of the plurality of blades 600 are different, and the plurality of blades 600 surround a water inlet area that is larger in the front and smaller in the back.

[0040] When the water in the front water area flows toward the water inlet, the water drives the filter layer 500 to rotate at the water inlet through the plurality of blades 600 to accelerate the water to pass through the filter layer 500 and enter the water inlet.

[0041] The inclination angles of the multiple blades 600 are different, so that it is easier to cause uneven force between the multiple blades 600, resulting in circumferential rotation, thereby driving the filter layer 500 to rotate, and the multiple blades 600 are surrounded to form a water inlet area, which makes it easier for the water in the water-facing area to flow to the water inlet area and quickly pass through the filter layer 500 into the water inlet for drainage.

[0042] The protruding filter layer 500 can be used to intercept impurities in the water body, preventing the impurities from entering the drainage pipe 400 and causing blockage of the drainage pipe 400 or a decrease in the drainage speed. When the impurities are intercepted by the filter layer 500, they will be thrown away from the filter layer 500 as the filter layer 500 rotates, avoiding blockage of the filter layer 500. The inclination angles of the multiple blades 600 are different. While driving the filter layer 500 to rotate, it can also drive the filter layer 500 to vibrate in multiple directions, making it easier for impurities to separate from the filter layer 500.

[0043] A plurality of blades 600 surround and form a water inlet area. As the blades 600 rotate, the water in the water-facing area can be guided to enter the water inlet area more quickly, so as to achieve a faster drainage effect.

[0044] The single-channel water interception and diversion structure that can be quickly constructed provided above utilizes the upstream dam, the middle dam 200 and the downstream dam 300 to form a whole, intercepts the water in the waterway, and utilizes the water diversion pipe to divert the water in the upstream area to the drainage area, thereby achieving the effect of water interception and diversion, so as to facilitate maintenance personnel to carry out emergency rescue construction; secondly, by arranging a rotating filter layer 500, impurities can be intercepted, and the intercepted impurities can be quickly separated from the filter layer 500, and the water in the upstream area can be quickly drained to the water inlet area for rapid drainage.

[0045] In this embodiment, the water-incoming dam 100 is formed by stacking a plurality of water-incoming sand bags from top to bottom, and adjacent water-incoming sand bags are arranged in a transversely staggered manner along the height direction of the water-incoming dam 100. Before arranging the water-incoming sand bags, a water-blocking board can be inserted into the waterway to temporarily intercept the water body, and then the water-incoming sand bags are quickly stacked to form the water-incoming dam 100.

[0046] The adjacent water-facing sand bags are arranged in a transversely staggered manner, so that the longitudinally adjacent or transversely adjacent water-facing sand bags can be firmly combined and have better integrity.

[0047] In this embodiment, the drainage pipe 400 has a water-facing built-in section 401 embedded in the water-facing dam 100, and the water inlet end of the drainage pipe 400 extends outside the water-facing dam 100 and is exposed in the water-facing area. In this way, it is easier for the water in the water-facing area to enter the drainage pipe 400.

[0048] The middle dam 200 is formed by filling the water-proof area with quick-setting cement soil, and the drainage pipe 400 has a middle built-in section 402 embedded in the middle dam 200. During the construction of the water-facing dam 100, the construction of the middle dam 200 can be carried out to ensure synchronous and rapid construction.

[0049] In this embodiment, the backwater dam 300 is formed by stacking a plurality of backwater sand bags from top to bottom. Along the height direction of the backwater dam 300, adjacent backwater sand bags are laterally staggered, so that the longitudinally adjacent or transversely adjacent backwater sand bags can be firmly combined and have better integrity.

[0050] The drainage pipe 400 has a backwater built-in section 403 embedded in the backwater dam 300. After the drainage pipe 400 moves through the backwater dam 300, it extends outward in a direction deviating from the waterway, and extends the drainage end to the drainage area.

[0051] Here, an elastic wrapping layer may be provided on the outer periphery of the backwater built-in section 403 of the drainage pipe 400, and the elastic wrapping layer is arranged around the circumference of the backwater built-in section 403, and is embedded in the backwater dam 300, and is pressed by the circumference of the backwater dam 300. However, due to the presence of the elastic wrapping layer, the backwater built-in section 403 can be kept in a movable arrangement within a 360° set range. When the water flow rate in the drainage pipe 400 is relatively high, the backwater built-in section 403 can swing within the set range, playing a role in actively regulating the flow of the water, so as to ensure that the water flows more smoothly in the drainage pipe 400.

[0052] In this embodiment, the middle dam 200 has a front end wall facing the upstream dam 100 and a rear end wall facing the downstream dam 300. The front end wall is inclined backward away from the upstream dam 100, and the rear end wall is inclined forward away from the downstream dam 300. The upstream pull plate is inclined backward and abuts against the middle dam 200, and the downstream dam 300 is inclined forward and abuts against the middle dam 200.

[0053] In this way, the upstream dam 100 and the downstream dam 300 are respectively inclined toward the middle dam 200, and the integrity is stronger. In addition, the upstream dam 100 is more stable when subjected to the impact of the water body.

[0054] In this embodiment, the filter layer 500 includes a middle portion 501 and a ring-shaped outer portion 503. The outer portion 503 is arranged around the outer periphery of the middle portion 501. A ring-shaped elastic band 502 is provided between the outer periphery of the middle portion 501 and the inner periphery of the outer portion 503. The elastic band 502 elastically combines the middle portion 501 and the outer periphery into one. The middle portion 501 and the outer periphery are respectively protruded away from the water inlet, and the rotating ring 505 is provided on the outer periphery of the outer portion 503.

[0055] In this way, for the filter layer 500, the middle part 501 can elastically reciprocate as a whole relative to the outer part 503. When subjected to the impact of water, the middle part 501 can elastically reciprocate while rotating synchronously with the outer part 503, so that impurities intercepted on the filter layer 500 can be quickly detached, thereby preventing the impurities from clogging the filter layer 500.

[0056] In this embodiment, two symmetrically arranged elastic sheets 506 are connected to the rotating ring 505, and the outer ends of the elastic sheets 506 are movably abutted against the rotating ring 505. The inner ends of the elastic sheets 506 extend into the protruding space 507 and are inclined toward the middle of the middle part 501. The outer ends of the elastic sheets 506 form abutment ends 508 that abut against the middle of the middle part 501.

[0057] By arranging the elastic sheet 506 , when the middle portion 501 is elastically reciprocatingly deformed relative to the outer portion 503 , the elastic sheet 506 is also elastically deformed accordingly, and the elastic force of the elastic sheet 506 can drive the middle portion 501 to be elastically reciprocatingly deformed quickly.

[0058] The abutting end 508 is spherical, and when the elastic sheet 506 is elastically deformed, the abutting end 508 and the middle part 501 are displaced and moved. The elastic sheet 506 is provided with a plurality of through holes 5061, and the plurality of through holes 5061 penetrate the elastic sheet 506 along the flow direction of the water body, so that the impact force of the water body on the elastic sheet 506 can be reduced, and the elastic deformation of the elastic sheet 506 is driven by the reciprocating elastic deformation of the middle part 501.

[0059] The elastic sheet 506 has an end face that is impacted by the water body, and the impacted end face is recessed backward away from the water inlet to form multiple recessed grooves 5062. The multiple recessed grooves 5062 are arranged at intervals along the length direction of the elastic sheet 506. In this way, when the elastic sheet 506 is elastically deformed, it is convenient for the elastic sheet 506 to bend and deform elastically.

[0060] The middle part of the middle portion 501 has a groove area 504 formed in the protruding space 507, the diameter of the groove area 504 is larger than the diameter of the abutment end 508, and the abutment end 508 is movably placed in the groove area 504; when the water in the water-facing area impacts the filter layer 500, the middle portion 501 reciprocates elastically deforms relative to the outer portion 503, and the elastic sheet 506 swings with the reciprocating elasticity.

[0061] When the elastic sheet 506 is reciprocatingly elastically deformed along with the middle portion 501 , the abutting end 508 can be restricted in the recessed area to prevent the abutting end 508 from deviating from a large position.

[0062] In this embodiment, there are longitudinal gaps and transverse gaps between adjacent water-facing sand bags. Geotextiles in a grid are arranged in the longitudinal gaps and the transverse gaps. The geotextiles have multiple special-shaped holes 700. Multiple elastic strips 701 are arranged in the special-shaped holes 700. The multiple elastic strips 701 are arranged in a vertical and horizontal cross pattern, and the multiple elastic strips 701 respectively abut against adjacent water-facing sand bags.

[0063] By arranging geotextiles, the longitudinal gaps and transverse gaps can be better filled, so that the entire water-facing dam 100 forms a closed whole, and multiple elastic strips 701 are formed in the special-shaped holes 700, which can abut against the water-facing sand bags. When misalignment occurs between the water-facing sand bags, the friction between the water-facing sand bags can be increased by utilizing the restriction of the elastic strips 701 to avoid large misalignment and movement.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-channel water diversion structure that can be quickly constructed, characterized in that: The invention comprises a water inlet weir, a middle weir, a backwater weir and at least one drainage pipe arranged in a water channel. The water inlet weir, the middle weir and the backwater weir are arranged in sequence and at intervals along the flow direction of the water flow in the water channel. The water channel has a water inlet area, a water barrier area and a water stop area. The water inlet area is formed in front of the water inlet weir, the water barrier area is formed between the water inlet weir and the backwater weir, the water stop area is formed behind the backwater weir, and the middle weir is arranged in the water barrier area. The drainage pipe has a water inlet end and a drainage end. The drainage pipe passes through the upstream dam, the middle dam and the downstream dam in sequence. The water inlet end extends to the upstream area, the drainage pipe extends to the outside of the waterway, and the drainage end extends to the drainage area. The water in the upstream area enters the drainage pipe from the water inlet end, is guided to the drainage area by the drainage pipe, and is discharged to the drainage area from the drainage end. The water inlet end has a water inlet, the water inlet is provided with a filter layer formed by weaving metal wire strips, the outer periphery of the filter layer is provided with a rotating ring, the rotating ring is arranged along the circumference of the filter layer, and the rotating ring is rotatably connected to the outer periphery of the water inlet end; The filter layer is convex away from the water inlet and is spherical, and the filter layer surrounds a convex space arranged toward the water inlet; the rotating ring extends outward to form a plurality of blades, and the plurality of blades are arranged around the circumference of the rotating ring at intervals; the inner ends of the blades are butted against the rotating ring, and the outer ends of the blades are arranged forwardly away from the water inlet, and the inclination angles of the plurality of blades are different, and the plurality of blades surround a water inlet area that is larger in the front and smaller in the back; When the water in the water-facing area flows toward the water inlet, the water drives the filter layer to rotate at the water inlet through the plurality of blades, so as to accelerate the water to pass through the filter layer and enter the water inlet.

2. The single-channel water diversion structure capable of rapid construction as claimed in claim 1, characterized in that: The water-incoming dam is formed by stacking a plurality of water-incoming sand bags from top to bottom, and along the height direction of the water-incoming dam, adjacent water-incoming sand bags are arranged in a transversely staggered manner.

3. The single-channel water diversion structure capable of rapid construction as claimed in claim 1, characterized in that: The drainage pipe has a water-incoming built-in section embedded in the water-incoming dam, and the water inlet end of the drainage pipe extends outside the water-incoming dam and is exposed in the water-incoming area.

4. The single-channel water diversion structure capable of rapid construction as claimed in claim 1, characterized in that: The intermediate dam is formed by quickly setting cement soil filling in the water-proof area, and the drainage pipe has an intermediate built-in section embedded in the intermediate dam.

5. The single-channel water interception and drainage structure capable of rapid construction as claimed in claim 1, characterized in that: The backwater dam is formed by stacking a plurality of backwater sand bags from top to bottom, and adjacent backwater sand bags are arranged in a transversely staggered manner along the height direction of the backwater dam.

6. The single-channel water diversion structure capable of rapid construction as claimed in claim 1, characterized in that: The drainage pipe has a backwater built-in section embedded in the backwater dam. After the drainage pipe moves through the backwater dam, it extends outward in a direction deviating from the waterway, extending the drainage end into the drainage area.

7. The single-channel water interception and drainage structure capable of rapid construction according to any one of claims 1 to 6, characterized in that: The middle dam has a front end wall facing the upstream dam and a rear end wall facing the downstream dam, the front end wall is inclined backward away from the upstream dam, and the rear end wall is inclined forward away from the downstream dam; the upstream pull plate is inclined backward and rests on the middle dam, and the downstream dam is inclined forward and rests on the middle dam.

8. The single-channel water interception and drainage structure capable of rapid construction according to any one of claims 1 to 6, characterized in that: The filter layer includes a middle part and a ring-shaped outer part, the outer part is arranged around the outer circumference of the middle part, an ring-shaped elastic band is provided between the outer circumference of the middle part and the inner circumference of the outer part, the elastic band elastically combines the middle part and the outer circumference into one; the middle part and the outer circumference are respectively protruded away from the water inlet, and the rotating ring is arranged on the outer circumference of the outer part.

9. The single-channel water interception and drainage structure capable of rapid construction as claimed in claim 8, characterized in that: The rotating ring is connected to two symmetrically arranged elastic sheets, the outer ends of the elastic sheets movably abut against the rotating ring, the inner ends of the elastic sheets extend into the protruding space and are arranged obliquely toward the middle of the middle part, and the outer ends of the elastic sheets form abutment ends abutting against the middle of the middle part; The abutting end is spherical, and a plurality of through holes are provided in the elastic sheet, and the plurality of through holes penetrate the elastic sheet along the flow direction of the water body; the elastic sheet has an end face facing the water body, and the end face facing the water body is concave backward away from the water inlet to form a plurality of concave grooves, and the plurality of concave grooves are arranged at intervals along the length direction of the elastic sheet; The middle part of the middle portion has a groove area formed in the protruding space, the diameter of the groove area is larger than the diameter of the abutting end, and the abutting end is movably placed in the groove area; when the water in the water-facing area impacts the filter layer, the middle portion reciprocates elastically deforms relative to the outer portion, and the elastic sheet swings with the reciprocating elasticity.

10. The single-channel water interception and drainage structure capable of rapid construction as claimed in claim 2, characterized in that: There are longitudinal gaps and transverse gaps between adjacent water-facing sand bags. Geotextiles in a grid are arranged in the longitudinal gaps and the transverse gaps. The geotextiles have multiple special-shaped holes. Multiple elastic strips are arranged in the special-shaped holes. The multiple elastic strips are arranged in a vertical and horizontal cross pattern, and the multiple elastic strips respectively abut against adjacent water-facing sand bags.

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