CN110863471B

CN110863471B - Layered water taking system of rock-fill concrete gravity dam

Info

Publication number: CN110863471B
Application number: CN201911168923.7A
Authority: CN
Inventors: 胡天舒; 孟才; 向亚卿
Original assignee: Wuhan Zhihong Water Conservancy And Hydropower Design Institute
Current assignee: Wuhan Zhihong Water Conservancy And Hydropower Design Institute
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2021-03-09
Anticipated expiration: 2039-11-25
Also published as: CN110863471A

Abstract

The invention relates to a layered water taking system of a rock-fill concrete gravity dam, which comprises: the dam comprises a dam body, a vertical shaft, a water intake structure, a supporting structure, an opening and closing gate, a lifting rope, a working chamber, a transverse rail, an electric hoist, a winch and a bottom rail; the vertical shaft is arranged on the inner side surface of the dam body, a plurality of water intake structures are arranged on the inner side of the vertical shaft, a water inlet pipe part of each water intake structure extends into the vertical shaft, a supporting structure is arranged in the vertical shaft, an opening and closing gate is assembled in the water inlet pipe in a sliding mode, the top of the opening and closing gate is connected with a lifting rope, the top of the dam body is provided with a working chamber, and the top of the lifting rope extends out of the inner bottom; the top is equipped with the horizontal rail in the studio, and the sliding assembly has electric block on the horizontal rail, and the diapire has end rail in the studio, and the sliding assembly has the hoist engine on the end rail, and electric block is used for pulling the hoist engine and slides, removable assembly between the top of lifting rope and the winding drum of hoist engine. The invention controls the lifting opening and closing of a plurality of opening and closing gates by one winch, and has the effects of reducing cost and shortening construction period.

Description

Layered water taking system of rock-fill concrete gravity dam

Technical Field

The invention relates to the technical field of a rock-fill concrete gravity dam, in particular to a layered water taking system of the rock-fill concrete gravity dam.

Background

The rock-fill concrete gravity dam is a dam type commonly used in hydraulic engineering, and is mainly suitable for medium and small reservoir engineering in mountainous areas and semi-mountainous areas.

Because the water quality of each layer of the reservoir is different, the purpose of taking water in layers is to select the best water layer from the water layers and open water taking ports with different depths to take water. As shown in fig. 1, a plurality of water intake structures 3 arranged at intervals are generally arranged on the inner side surface of an existing rock-fill concrete gravity dam, adjacent water intake structures 3 are arranged at intervals horizontally, a water inlet pipe is arranged inside each water intake structure 3, an opening and closing gate 5 is arranged in each water inlet pipe, each opening and closing gate 5 is lifted through a group of power devices 103, and for example, 5 groups of power devices 103 are needed for 5 water intake structures 3.

The above prior art solutions have the following drawbacks: the number of the water intake structures is generally far more than 5, and under many circumstances, the number of the water intake structures can reach more than ten groups or even twenty groups, a general power device is composed of a steel wire rope and winches, the cost of each winch is still higher, and a line and a control system are required to be laid for each winch in the installation process, so that the cost is increased, and improvement is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a layered water taking system of a rock-fill concrete gravity dam, which controls a plurality of opening and closing gates to lift and close through a winch and has the advantages of low cost and short construction period.

The above object of the present invention is achieved by the following technical solutions:

a layered water intake system for a rock-fill concrete gravity dam, comprising: the dam comprises a dam body, a vertical shaft, a water intake structure, a supporting structure, an opening and closing gate, a lifting rope, a working chamber, a transverse rail, an electric hoist, a winch and a bottom rail;

the vertical shaft is arranged on the inner side surface of the dam body, a plurality of water intake structures which are arranged at intervals in height are arranged on the inner side of the vertical shaft, the adjacent water intake structures are arranged at intervals in a horizontal mode, each water intake structure comprises a water inlet pipe, part of each water inlet pipe extends into the vertical shaft, a supporting structure for supporting the water inlet pipe is arranged in the vertical shaft, opening and closing gates are vertically assembled on the two inner side walls of the water inlet pipes in a sliding mode, the top of each opening and closing gate is connected with the lifting rope, the top of the dam body is provided with the working chamber, and the top of each lifting rope extends out of the inner bottom wall of the working;

the interior top of studio is equipped with the horizontal rail of horizontal arrangement, it is equipped with electric block to slide on the horizontal rail, the inner diapire of studio has end rail, end rail is parallel the horizontal rail, it is equipped with the hoist engine to slide on the end rail, electric block is used for dragging the hoist engine is followed end rail slides, the top of lifting rope with removable assembly between the winding drum of hoist engine.

By adopting the technical scheme, firstly, the bottom rail is added on the inner bottom wall of the working chamber, the winch is slidably mounted on the bottom rail, then the transverse rail and the electric hoist are added on the inner top of the working chamber, when the opening and closing valves at different positions are required to be opened so as to open the water intake structures at different positions and take water with different water depths, the lifting hook of the electric hoist and the winch can be connected, then the electric hoist is started, the electric hoist can drag the winch to slide along the bottom rail, after the winch moves to the corresponding position, the winding drum of the winch and the top of the corresponding lifting rope are connected together, the winch is started, the opening and closing valve can be driven to lift through the lifting rope, when other opening and closing valves are required to be replaced, the winding drum and the top of the lifting rope are detached, and the process is repeated; this layering water intaking system controls a plurality of gates of opening and close through a hoist engine and goes up and down to open and close, need not to install a plurality of power supplies according to the quantity of opening and close the valve, has reduce cost and the short advantage of construction cycle.

In a preferred example of the present invention, a first annular rope end is disposed on a top portion of the lifting rope, the first annular rope end is formed by clamping and fixing a plurality of first rope clamps, a section of connecting rope is fixed on the winding drum, a second annular rope end is disposed on an end of the connecting rope away from the winding drum, the second annular rope end is formed by clamping and fixing a plurality of second rope clamps, and the first annular rope end and the second annular rope end are connected.

Through adopting above-mentioned technical scheme, through first annular fag end and second annular fag end, can make the lifting rope connect for one with connecting the rope, so when the winding drum was ordered about to the hoist engine, thereby can directly the winding rope drives the gate lift of opening and close that corresponds, and when above-mentioned connection structure is dismantled to needs, with first rope clip or second rope clip dismantle can, then remove the position of hoist engine, can make again connect the rope and be connected with another lifting rope, above-mentioned removable assembly structure is fairly simple, the staff operation is more convenient, and connect very firmly moreover.

The invention can be further configured in a preferred example that the inner top of the working chamber is provided with a horizontally arranged cross beam, the cross rail is made of I-shaped steel, and a top wing plate of the I-shaped steel is fixedly connected with the cross beam through a reinforcing member.

Through adopting above-mentioned technical scheme, through increase reinforcement and crossbeam in the studio, be favorable to the interior top stable installation horizontal rail at the studio.

The present invention may be further configured in a preferred example in that the reinforcement comprises: j-shaped embedded bars, an embedded steel plate and a locking nut,

the embedded interval arrangement about being fixed with the polylith in the crossbeam pre-buried steel sheet, it is a plurality of the crotch part pre-buried of J shape bar planting is fixed in the crossbeam and run through simultaneously pre-buried steel sheet, the bottom of J shape bar planting stretches out the bottom surface of crossbeam just runs through the pterygoid lamina, lock nut screw assembly in the bottom of J shape bar planting, lock nut cooperation the bottom surface of crossbeam presss from both sides tightly fixedly the pterygoid lamina.

Through adopting above-mentioned technical scheme, the J shape is planted the muscle and is connected as an organic wholely with pre-buried steel sheet, and is difficult to follow the crossbeam slippage and come out, and above-mentioned structural design's reinforcement can make firm connection between crossbeam and the horizontal rail, and the horizontal rail is difficult for rocking moreover, and when consequently electric block pulled the hoist engine, whole structure was more stable.

The invention may in a preferred example be further configured such that the support structure comprises: the supporting plate is of a reinforced concrete structure, the supporting block is arranged between the lower surface of the supporting plate and the inner wall of the vertical shaft, the supporting plate and the supporting block are fixedly connected through C-shaped embedded bars.

Through adopting above-mentioned technical scheme, above-mentioned structural design's bearing structure, simple structure is firm, can with the inner wall of shaft between firm connection, be favorable to intake stable in structure to install, when opening and close gate whereabouts and assault, bearing structure can have good shock-resistant effect moreover.

The present invention may be further configured in a preferred example, wherein the water intake structure further includes: the water inlet pipe extends out of the vertical shaft, the part of the water inlet pipe extends out of the vertical shaft is of a horn mouth structure, the dirt blocking fence is arranged at the horn mouth structure, the triangular plate is arranged between the lower surface of the horn mouth structure and the outer wall of the vertical shaft, and the triangular plate is of a reinforced concrete structure.

Through adopting above-mentioned technical scheme, the trash rack can avoid the great fixed debris of aquatic to get into the intake to can avoid the internal various pipe blockage of dam, the set-square has good supporting role to the inlet tube moreover, thereby the inlet tube is installed more stably, and the horn mouth structure can water entering inlet tube.

In a preferred example, the invention may be further configured that a plurality of transverse pipes and a plurality of vertical pipes are further arranged in the vertical well, the transverse pipes are arranged at the tops of the vertical pipes, the transverse pipes are communicated with the water inlet pipe, a plain concrete structure, a converging cavity, a water supply steel pipe and a water delivery culvert are arranged in the dam body, the bottoms of the lowermost water inlet pipe and the lowermost vertical pipe are communicated with the converging cavity, the converging cavity is arranged at the top of the plain concrete structure, water taken from the converging cavity is delivered out of the dam body through the water supply steel pipe, the outer ends of the water delivery culvert extend out of the outer side surface of the dam body, and the inner bottom surfaces of the water delivery culvert are arranged in a downward inclination from inside to outside.

Through adopting above-mentioned technical scheme, when the on-off valve in the inlet pipe rises and opens, the water that will take out can flow to in the inlet pipe, then flows to converging in the cavity along violently managing and standpipe, and the water that converges in the cavity flows out along the water supply steel pipe again, and the water delivery culvert pipe has certain guard action to the water supply steel pipe, and the staff can get into the water delivery culvert pipe in addition and maintain the inspection water supply steel pipe.

The invention may further be configured in a preferred example, a gallery is reserved in the plain concrete structure, a curtain impervious wall is arranged at the bottom of the dam body, the gallery is located right above the curtain impervious wall, a drain hole is arranged between the curtain impervious walls on the inner bottom wall of the gallery, the drain hole is vertically arranged, the bottom of the drain hole penetrates through the bottom of the curtain impervious wall, and a drain pipe is arranged in the drain hole.

By adopting the technical scheme, when water is accumulated in the gallery, the water can be timely drained into the foundation at the bottom of the curtain impervious wall through the drain pipe, so that the water is effectively prevented from being accumulated in the gallery for a long time.

In a preferred example, the invention may be further configured that the water supply steel pipe is partially located in the water delivery culvert, and a concrete-coated structure is arranged on the periphery of the part of the water supply steel pipe located outside the water delivery culvert.

By adopting the technical scheme, the concrete coating structure has a protection effect on the water supply steel pipe of the part, and the water supply steel pipe is effectively prevented from being extruded and deformed.

In a preferred example, the invention may be further configured that an outer side surface of the dam body is provided with a reinforced concrete slope panel, an inner side surface of the reinforced concrete slope panel is in a step shape, the dam body is mainly formed by piling masonry concrete, a convex arc surface is arranged at the top of the reinforced concrete slope panel, and a concave arc surface is arranged at the bottom of the reinforced concrete slope panel.

Through adopting above-mentioned technical scheme, inside reinforced concrete inclined plane board can prevent that the rainwater from permeating to the dam body along the lateral surface of dam body, and the medial surface that reinforced concrete inclined plane board is the echelonment can be more firm be connected with masonry concrete moreover, and the design of convex arc face and concave cambered surface has the effect of trajectory planning energy dissipation.

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

1. firstly, a bottom rail is added on the inner bottom wall of a working chamber, a winch is slidably mounted on the bottom rail, then a transverse rail and an electric hoist are added on the inner top of the working chamber, when opening and closing valves at different positions are required to be opened so as to open water intake structures at different positions and take water with different water depths, a lifting hook of the electric hoist and the winch can be connected, then the electric hoist is started, the electric hoist can drag the winch to slide along the bottom rail, after the winch moves to the corresponding position, a winding drum of the winch and the top of a corresponding lifting rope are connected together, the winch is started, the opening and closing valve can be driven to lift through the lifting rope, when other opening and closing valves are required to be changed to be opened, the winding drum and the top of the lifting rope are detached, and the process is repeated; the layered water taking system controls the lifting opening and closing of the plurality of opening and closing gates through one winch, a plurality of power sources do not need to be installed according to the number of the opening and closing valves, and the layered water taking system has the advantages of reducing cost and being short in construction period;

j shape bar planting and pre-buried steel sheet are connected as an organic wholely, and are difficult to follow the crossbeam slippage and come out, and above-mentioned structural design's reinforcement can make firm connection between crossbeam and the horizontal rail, and the horizontal rail is difficult for rocking moreover, and when consequently electric block pulled the hoist engine, whole structure was more stable.

Drawings

FIG. 1 is a schematic diagram of a layered water withdrawal system according to the prior art;

FIG. 2 is a schematic cross-sectional front view of an embodiment of the present invention;

FIG. 3 is a side cross-sectional structural schematic of an embodiment of the present invention;

FIG. 4 is a schematic view of the assembly of the hoist and the lifting rope according to the embodiment of the present invention;

FIG. 5 is a schematic illustration of the assembly relationship between the cross rail and the cross member in an embodiment of the present invention;

FIG. 6 is an enlarged view at A in FIG. 3;

fig. 7 is a schematic top plan view of an embodiment of the present invention.

Reference numerals: 1. a dam body; 11. a plain concrete structure; 12. a converging cavity; 13. a water supply steel pipe; 14. a water delivery culvert pipe; 15. a gallery; 16. a drain pipe; 17. wrapping a concrete structure; 18. a reinforced concrete inclined plane slab; 181. a convex arc surface; 182. a concave arc surface; 19. masonry concrete; 2. a shaft; 21. a transverse tube; 22. a vertical tube; 3. a water intake structure; 31. a water inlet pipe; 32. a set square; 33. a trash rack; 4. a support structure; 41. a support plate; 42. a support block; 43. c-shaped steel bar planting; 5. opening and closing the gate; 6. lifting a lifting rope; 61. a first endless rope end; 62. a first rope clamp; 7. a working chamber; 71. a cross beam; 72. a reinforcement; 721. j-shaped steel bar planting; 722. pre-burying a steel plate; 723. locking the nut; 8. a transverse rail; 81. a wing plate; 9. a winch; 91. winding the roll; 92. connecting ropes; 93. a second annular rope end; 94. a second rope clamp; 10. an electric hoist; 101. a bottom rail; 102. a curtain impervious wall; 103. and a power device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2 and 3, the layered water intake system for a rock-fill concrete gravity dam disclosed by the invention comprises: the dam comprises a dam body 1, a vertical shaft 2, a water intake structure 3, a supporting structure 4, an opening and closing gate 5, a lifting rope 6, a working chamber 7, a transverse rail 8, an electric hoist 10, a winch 9 and a bottom rail 101.

The medial surface of dam body 1 is located to shaft 2, shaft 2's inboard is equipped with five (this quantity can be 6 in other embodiments, 7, 8 or more) height interval arrangement's intake structure 3, horizontal interval arrangement between the adjacent intake structure 3, intake structure 3 includes inlet tube 31 (see fig. 6), the part of inlet tube 31 stretches into in shaft 2, be equipped with the bearing structure 4 who supports inlet tube 31 in shaft 2, the vertical slip of two inside walls of inlet tube 31 is equipped with and opens and close gate 5, the top of opening and close gate 5 is connected with lifting rope 6, the top of dam body 1 is equipped with studio 7, the inner bottom wall of studio 7 is stretched out at lifting rope 6's top.

The interior top of studio 7 is equipped with horizontal arrangement's horizontal rail 8, and the sliding is equipped with electric block 10 on horizontal rail 8, and there is end rail 101 at the inner bottom wall of studio 7, and end rail 101 is parallel to horizontal rail 8, and the sliding is equipped with hoist engine 9 on end rail 101, and electric block 10 is used for dragging hoist engine 9 and slides along end rail 101, removable the assembly between the top of lifting rope 6 and the receipts reel 91 of hoist engine 9 (see fig. 4).

Still be equipped with many violently pipes 21 and many standpipes 22 in the shaft 2, violently pipe 21 locates the top of standpipe 22, violently pipe 21 is linked together with inlet tube 31 (see fig. 6), be equipped with plain concrete structure 11 in the dam body 1, join cavity 12, water supply steel pipe 13 and water delivery culvert pipe 14, the bottom of bottommost inlet tube 31 and standpipe 22 communicates in joining cavity 12, join cavity 12 and locate the top of plain concrete structure 11, the water of getting in joining cavity 12 is carried out dam body 1 through water supply steel pipe 13, the lateral surface of dam body 1 is stretched out to the outer end of water delivery culvert pipe 14, the interior bottom surface of water delivery culvert pipe 14 sets up from interior to exterior downward sloping and arranges. When the on-off valve in the water inlet pipe 31 rises and opens, the water to be taken out can flow into the water inlet pipe 31 and then flow into the converging cavity 12 along the transverse pipe 21 and the vertical pipe 22, the water in the converging cavity 12 flows out along the water supply steel pipe 13, the water delivery culvert pipe 14 has a certain protection effect on the water supply steel pipe 13, and a worker can enter the water delivery culvert pipe 14 to maintain and inspect the water supply steel pipe 13.

A gallery 15 is reserved in the plain concrete structure 11, a curtain impervious wall 102 is arranged at the bottom of the dam body 1, the gallery 15 is located right above the curtain impervious wall 102, a drain hole is arranged between the curtain impervious walls 102 on the inner bottom wall of the gallery 15, the drain hole is vertically arranged, the bottom of the drain hole penetrates through the bottom of the curtain impervious wall 102, and a drain pipe 16 is arranged in the drain hole. When water is accumulated in the gallery 15, the water can be drained into the foundation at the bottom of the curtain impervious wall 102 in time through the drain pipe 16, and the water is effectively prevented from being accumulated in the gallery 15 for a long time.

The part of the water supply steel pipe 13 is positioned in the water delivery culvert 14, and the periphery of the part of the water supply steel pipe 13 outside the water delivery culvert 14 is provided with a concrete coating structure 17. The concrete-coated structure 17 has a protective effect on the water supply steel pipe 13 at the part, and effectively prevents the water supply steel pipe 13 from being extruded and deformed.

The outer side surface of the dam body 1 is provided with a reinforced concrete inclined plane plate 18, the inner side surface of the reinforced concrete inclined plane plate 18 is in a step shape, the dam body 1 is mainly formed by piling up masonry concrete 19, the top of the reinforced concrete inclined plane plate 18 is provided with a convex cambered surface 181, and the bottom of the reinforced concrete inclined plane plate 18 is provided with a concave cambered surface 182. The reinforced concrete inclined plane plate 18 can prevent rainwater from penetrating into the dam body 1 along the outer side face of the dam body 1, the inner side face of the reinforced concrete inclined plane plate 18 in the step shape can be more stably connected with masonry concrete 19, and the convex arc face 181 and the concave arc face 182 have the effect of trajectory jet energy dissipation.

Referring to fig. 3 and 4, a first annular rope end 61 is disposed at the top of the lifting rope 6, the first annular rope end 61 is formed by clamping and fixing a plurality of first rope clamps 62, a section of connecting rope 92 is fixed on the winding drum 91, a second annular rope end 93 is disposed at one end of the connecting rope 92 far away from the winding drum 91, the second annular rope end 93 is formed by clamping and fixing a plurality of second rope clamps 94, and the first annular rope end 61 is connected with the second annular rope end 93.

Through first annular fag end 61 and second annular fag end 93, can make lifting rope 6 and connection rope 92 connect for one, lifting rope 6 is wire rope with connect rope 92, so hoist 9 orders about when receipts reel 91 rotates, thereby can directly the rolling lifting rope 6 drives the gate 5 that opens and close that corresponds and goes up and down, and when above-mentioned connection structure is dismantled to needs, with first rope clip 62 or second rope clip 94 dismantle open can, then remove hoist 9's position, can make again and connect rope 92 and another lifting rope 6 and be connected, above-mentioned removable assembly structure is fairly simple, staff's operation is more convenient, and it is very firm to connect in addition.

As shown in fig. 2 and 5, the horizontal beam 71 is arranged at the inner top of the working chamber 7, the transverse rail 8 is made of i-steel, the top wing plate 81 of the i-steel and the transverse beam 71 are fixedly connected through the reinforcing member 72, and the reinforcing member 72 and the transverse beam 71 are added in the working chamber 7, so that the transverse rail 8 can be stably installed at the inner top of the working chamber 7.

The reinforcing member 72 includes: j-shaped bar planting 721, pre-buried steel sheet 722 and lock nut 723, pre-buried fixed with the pre-buried steel sheet 722 of interval arrangement about polylith in the crossbeam 71, the crotch part pre-buried of a plurality of J-shaped bar planting 721 is fixed in the crossbeam 71 and runs through pre-buried steel sheet 722 simultaneously, the bottom of J-shaped bar planting 721 stretches out the bottom surface of crossbeam 71 and runs through pterygoid lamina 81, lock nut 723 threaded assembly is in the bottom of J-shaped bar planting 721, lock nut 723 cooperates the bottom surface clamp fastening of crossbeam 71 to decide pterygoid lamina 81. J-shaped bar planting 721 and embedded steel plate 722 are connected as an organic whole, and are difficult to follow the slippage and come out in crossbeam 71, and above-mentioned structural design's reinforcement 72 can make firm connection between crossbeam 71 and the horizontal rail 8, and horizontal rail 8 is difficult for rocking moreover, and when consequently electric block 10 dragged hoist engine 9, overall structure is more stable.

As shown in connection with fig. 3 and 6, the support structure 4 comprises: the supporting plate 41 and the supporting block 42, the supporting plate 41 is of a reinforced concrete structure, the supporting block 42 is arranged between the lower surface of the supporting plate 41 and the inner wall of the shaft 2, the supporting plate 41 and the supporting block 42 are fixedly connected through a C-shaped planting bar 43. Above-mentioned structural design's bearing structure 4, simple structure is firm, can with well 2 inner walls between firm connection, be favorable to intake structure 3 stable installation, when opening and close 5 whereabouts impacts of gate moreover, bearing structure 4 can have good shock-resistant effect.

The water intake structure 3 further includes: the part that the inlet tube 31 stretches out of the shaft 2 is of a bell mouth structure, the dirt blocking fence 33 is arranged at the bell mouth structure, the triangular plate 32 is arranged between the lower surface of the bell mouth structure and the outer wall of the shaft 2, and the triangular plate 32 is of a reinforced concrete structure. The trash rack 33 can avoid the great fixed debris of aquatic to get into the intake to can avoid the various pipe blockage in the dam body 1, set-square 32 has good supporting role to inlet tube 31 in addition, thereby inlet tube 31 is installed more stably, and the horn mouth structure can water entering inlet tube 31.

Referring to fig. 3 and 7, the layered water intake system is arranged on the side of the whole rock-fill concrete gravity dam and close to a hillside, and the water delivery culvert 14 is obliquely arranged in the dam body 1.

The implementation principle of the embodiment is as follows: first, by adding the bottom rail 101 to the inner bottom wall of the working chamber 7, the hoist 9 is slidably mounted on the bottom rail 101, then a transverse rail 8 and an electric hoist 10 are added on the inner top of the working chamber 7, when opening and closing valves at different positions are needed to open the water intake structures 3 at different positions and take water with different water depths, the lifting hook of the electric hoist 10 can be connected with the winch 9, then the electric hoist 10 is started, the electric hoist 10 can drag the winch 9 to slide along the bottom rail 101, after the winch 9 moves to the corresponding position, then the winding drum 91 of the windlass 9 is connected with the top of the corresponding lifting rope 6, the starting of the windlass 9 can drive the on-off valve to lift through the lifting rope 6, when other on-off valves need to be opened, detaching the winding drum 91 and the top of the lifting rope 6, and repeating the process; this layering water intaking system controls a plurality of gates 5 of opening and close through a hoist engine 9 and goes up and down to open and close, need not to install a plurality of power supplies according to the quantity of opening and close the valve, has reduce cost and the short advantage of construction cycle.

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

Claims

1. The utility model provides a layering water intaking system of rock-fill concrete gravity dam which characterized in that includes: the dam comprises a dam body (1), a vertical shaft (2), a water intake structure (3), a supporting structure (4), an opening and closing gate (5), a lifting rope (6), a working chamber (7), a transverse rail (8), an electric hoist (10), a winch (9) and a bottom rail (101);

the vertical shaft (2) is arranged on the inner side surface of the dam body (1), a plurality of water intake structures (3) arranged at intervals in height are arranged on the inner side of the vertical shaft (2), the adjacent water intake structures (3) are arranged at intervals in a horizontal mode, each water intake structure (3) comprises a water inlet pipe (31), part of each water inlet pipe (31) extends into the vertical shaft (2), a supporting structure (4) for supporting the corresponding water inlet pipe (31) is arranged in the vertical shaft (2), opening and closing gates (5) are vertically assembled on the two inner side walls of the corresponding water inlet pipe (31) in a sliding mode, the top of each opening and closing gate (5) is connected with a lifting rope (6), the working chamber (7) is arranged on the top of the dam body (1), and the top of each lifting rope (6) extends out of the inner bottom wall of the corresponding working chamber (7;

the interior top of studio (7) is equipped with horizontal arrangement's horizontal rail (8), it is equipped with electric block (10) to slide on horizontal rail (8), the interior diapire of studio (7) has end rail (101), end rail (101) are parallel horizontal rail (8), it is equipped with hoist engine (9) to slide on end rail (101), electric block (10) are used for dragging hoist engine (9) are followed end rail (101) slide, the top of lifting rope (6) with removable assembly between winding drum (91) of hoist engine (9).

2. The layered water intake system of the rock-fill concrete gravity dam according to claim 1, characterized in that a first annular rope head (61) is arranged at the top of the lifting rope (6), the first annular rope head (61) is formed by clamping and fixing a plurality of first rope clamps (62), a section of connecting rope (92) is fixed on the winding drum (91), a second annular rope head (93) is arranged at one end, far away from the winding drum (91), of the connecting rope (92), the second annular rope head (93) is formed by clamping and fixing a plurality of second rope clamps (94), and the first annular rope head (61) is connected with the second annular rope head (93).

3. The layered water intake system of the rock-fill concrete gravity dam as claimed in claim 1, characterized in that the inner top of the working chamber (7) is provided with a horizontally arranged cross beam (71), the cross rail (8) is made of an i-steel, and the top wing plate (81) of the i-steel and the cross beam (71) are fixedly connected through a reinforcing member (72).

4. The layered water intake system of a rock-fill concrete gravity dam according to claim 3, wherein the reinforcement (72) comprises: j-shaped planting bars (721), an embedded steel plate (722) and a locking nut (723),

the embedded interval arrangement about being fixed with the polylith in crossbeam (71) pre-buried steel sheet (722), it is a plurality of the crotch part pre-buried of J shape bar planting (721) is fixed in crossbeam (71) and run through simultaneously pre-buried steel sheet (722), the bottom of J shape bar planting (721) is stretched out the bottom surface of crossbeam (71) and is run through pterygoid lamina (81), lock nut (723) screw assembly in the bottom of J shape bar planting (721), lock nut (723) cooperation the bottom surface of crossbeam (71) presss from both sides the fastening is fixed pterygoid lamina (81).

5. Layered water intake system of a rock-fill concrete gravity dam according to claim 1, characterized in that the support structure (4) comprises: the supporting plate (41) is of a reinforced concrete structure, the supporting block (42) is arranged between the lower surface of the supporting plate (41) and the inner wall of the vertical shaft (2), the supporting plate (41) and the supporting block (42) are fixedly connected through C-shaped planting ribs (43).

6. The layered water intake system of a rock-fill concrete gravity dam according to claim 1, characterized in that the water intake structure (3) further comprises: set-square (32) and trash rack (33), inlet tube (31) stretch out the part of shaft (2) is horn mouth structure, horn mouth structure department is equipped with trash rack (33), the lower surface of horn mouth structure with be equipped with between the outer wall of shaft (2) set-square (32), set-square (32) are reinforced concrete structure.

7. The layered water taking system of the rock-fill concrete gravity dam according to claim 1, characterized in that a plurality of horizontal pipes (21) and a plurality of vertical pipes (22) are further arranged in the vertical shaft (2), the horizontal pipes (21) are arranged at the tops of the vertical pipes (22), the horizontal pipes (21) are communicated with the water inlet pipes (31), a plain concrete structure (11), a converging cavity (12), a water supply steel pipe (13) and a water delivery culvert (14) are arranged in the dam body (1), the bottoms of the bottommost water inlet pipes (31) and the vertical pipes (22) are communicated with the converging cavity (12), the converging cavity (12) is arranged at the top of the plain concrete structure (11), water taken from the converging cavity (12) is delivered out of the dam body (1) through the water supply steel pipe (13), and the outer ends of the water delivery culverts (14) extend out of the outer side surface of the dam body (1), the inner bottom surface of the water conveying culvert pipe (14) is downwards inclined from inside to outside.

8. The layered water taking system for the rock-fill concrete gravity dam according to claim 7, characterized in that a gallery (15) is reserved in the plain concrete structure (11), a curtain impervious wall (102) is arranged at the bottom of the dam body (1), the gallery (15) is located right above the curtain impervious wall (102), a drain hole is arranged between the inner bottom wall of the gallery (15) and the curtain impervious wall (102), the drain hole is vertically arranged, the bottom of the drain hole penetrates through the bottom of the curtain impervious wall (102), and a drain pipe (16) is arranged in the drain hole.

9. The layered water taking system of the rock-fill concrete gravity dam according to claim 7, wherein the water supply steel pipe (13) is partially positioned in the water delivery culvert (14), and a concrete-coated structure (17) is arranged on the periphery of the part of the water supply steel pipe (13) outside the water delivery culvert (14).

10. The layered water intake system of the rock-fill concrete gravity dam as claimed in claim 1, wherein the outer side of the dam body (1) is provided with a reinforced concrete slope plate (18), the inner side of the reinforced concrete slope plate (18) is in a step shape, the dam body (1) is mainly formed by stacking rock-fill concrete (19), the top of the reinforced concrete slope plate (18) is provided with a convex arc surface (181), and the bottom of the reinforced concrete slope plate (18) is provided with a concave arc surface (182).