CN212670801U

CN212670801U - Pump station goes out water structure

Info

Publication number: CN212670801U
Application number: CN202020845190.8U
Authority: CN
Inventors: 谌伟宁; 李蓓; 刘晓亮
Original assignee: Hubei Provincial Water Resources and Hydropower Planning Survey and Design Institute
Current assignee: Hubei Provincial Water Resources and Hydropower Planning Survey and Design Institute
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-03-09
Anticipated expiration: 2030-05-19

Abstract

The utility model relates to a water conservancy facility technical field specifically indicates a pump station goes out water structure. The device comprises a water outlet pool, a water blocking weir and a stilling pool which are sequentially arranged along the flow direction of water flow; the water outlet pool comprises a bottom plate and water outlet pool side walls poured on two sides of the bottom plate; the bottom plate is a hollow box-type structure, and a flat-pressing communicating structure of a balance effluent pool and a stilling pool is arranged between the bottom plate and the water blocking weir. The utility model discloses the effluent pool adopts empty box formula bottom plate and the effluent pool side wall structure with bottom plate integral connection, goes out the pool bottom plate and blocks up the weir and be hollow structure, when reducing the base stress by a wide margin, greatly increased the bulk rigidity of effluent pool, improved its ability of resisting the uneven settlement of basis, reduced the construction degree of difficulty and basic treatment engineering volume, the advection pipe that is equipped with the valve has ensured the anti-floating stability of whole effluent pool structure, has very big spreading value.

Description

Pump station goes out water structure

Technical Field

The utility model relates to a water conservancy facility technical field specifically indicates a pump station goes out water structure.

Background

From the urban drainage channel, the waterlogging drainage pump station comprises buildings such as a trash rack, a water inlet pool, a pump room, a water outlet pool, a siphon-type flow channel crossing over the dike, a flood gate at the side of the external river, the water outlet pool, a water damming weir, a stilling pool, a drainage channel and the like. In order to compare comprehensive technology and economy and consider flexible and convenient operation and scheduling, the number of units is more than 3-5, and the widths of a flood gate, a water outlet pool and a water damming weir are more than 30 m. The flood gate, the water outlet pool and the water damming weir at the side of the external river are mostly positioned at the river beach outside the dike, the foundation is mostly soft strata such as thick silt clay, silt silty clay, silt sand and the like, the bearing capacity is low, the compression modulus is small, and the foundation treatment engineering quantity is large.

The soft foundation treatment currently comprises soil replacement, open caisson, pile foundation and the like, and the pile foundation also has a 'strong pile' scheme that the whole load is borne by a pile foundation and a 'weak pile' scheme that the pile foundation and the soil foundation jointly bear the load. The soil replacement scheme has large excavation volume, and the improvement of the bearing capacity of the foundation is limited due to limited treatment depth, so that the capability of bearing horizontal thrust under the condition of a light structure cannot be met frequently. Open caisson foundation strong adaptability, but the structure is complicated, and the construction is troublesome, and the quality is difficult to control, and the cost is high. The 'strong pile' foundation is designed according to the bearing of all loads by the pile foundation, and the pile body is generally an end bearing pile with an end bearing on a better stratum or a longer friction pile, so that the bearing capacity is large and the settlement deformation is small. The pile type is generally higher in manufacturing cost on a deeper soft clay foundation, and is easy to leak due to the fact that foundation soil and a bottom plate are separated, and after the leakage happens, the pile type is difficult to treat.

The weak pile foundation considers that the pile foundation and the soil foundation jointly bear the load of the upper part, and adopts a prefabricated short pile, a jet grouting pile, a stirring pile and the like. Because the pile length is short, the short pile group and the soil body share the upper load, the function is equivalent to that of a composite foundation, and the foundation settlement deformation is large, so that the problem of water leakage caused by the fact that the plate bottom and the foundation soil are separated is not easy to occur; has better economical efficiency, thereby achieving wide application.

Wherein, flood control floodgate lower part generally is whole box culvert, owing to arrange the needs of gate sluice trough, no matter be bottom plate or gate pier all for thick and solid, box culvert bulk rigidity is big, and it is less because of the condition that the basis subsides and lead to appearing the crack. The drainage channel generally adopts Reynolds protection pads, dry stones or mortar stones, concrete prefabricated blocks and the like, has low requirement on the bearing capacity of the foundation and is less influenced by foundation settlement, but the effluent pool, the backwater weir, the stilling pool and the stilling pool section, particularly the effluent pool and the backwater weir, have large span and thin structure, the backwater weir mostly adopts a solid concrete structure, the self weight is large, in order to avoid structural cracks caused by uneven settlement of the foundation, the effluent pool and the backwater weir of a pump station with large width are generally arranged in a separated mode in the industry, namely, retaining walls on two sides are separated from the effluent pool and the backwater weir by structural joints, horizontal red copper sheets are arranged in the horizontal joints for stopping water, asphalt wells capable of adapting to large deformation are arranged in vertical joints for stopping water, and meanwhile, the thickness of the bottom plate is increased in order to meet the anti-floating requirement of the bottom plate. Nevertheless, because retaining wall and play pool bottom plate are great to the pressure difference of basis, its differential settlement phenomenon is difficult to avoid more. Meanwhile, the retaining walls on both sides often have to increase the length of the bottom plate and increase the amount of foundation treatment works due to the fact that the skid resistance or the base stress exceeds the allowable bearing capacity.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem mentioned in the background art and providing a pump station water outlet structure.

The technical scheme of the utility model is that: the utility model provides a pump station goes out water structure which characterized in that: the device comprises a water outlet pool, a water blocking weir and a stilling pool which are sequentially arranged along the flow direction of water flow; the water outlet pool comprises a bottom plate and water outlet pool side walls poured on two sides of the bottom plate; the bottom plate is a hollow box-type structure, and a flat-pressing communicating structure of a balance effluent pool and a stilling pool is arranged between the bottom plate and the water blocking weir.

The flattening communication structure comprises a through hole arranged on the bottom plate and a flattening pipe arranged on the water retaining weir; a plurality of partition walls which are arranged in a criss-cross mode are arranged in the bottom plate; the through holes comprise water inlets penetrating through the top of the bottom plate and extending into the bottom plate box body and through holes penetrating through the partition walls and communicating with all partitions of the bottom plate box body; one end of the pressure equalizing pipe is communicated with the inner space of the bottom plate box body, and the other end of the pressure equalizing pipe is communicated with the water retaining weir and the stilling pool.

The water blocking weir further comprises a vertical weir body positioned on one side of the effluent pool and an inclined weir body positioned on one side of the stilling pool; the inclined weir body is an inclined slope structure provided with a transverse structural seam, and the upper end of the inclined weir body is connected with the upper end of the vertical weir body to form a hollow weir body structure.

The further pressure equalizing pipe comprises a first pressure equalizing pipe arranged on the inclined weir body and a second pressure equalizing pipe arranged on the vertical weir body; one end of the first flat pipe is communicated with the inner cavity of the water-retaining weir, and the other end of the first flat pipe is communicated with the stilling pool; one end of the second pressure equalizing pipe is communicated with the inner space of the bottom plate box body, and the other end of the second pressure equalizing pipe is communicated with the inner cavity of the water retaining weir.

And a valve is arranged at one end of the first flat pressing pipe close to the bottom plate.

Furthermore, the first flat pressing pipe and the second flat pressing pipe are internally provided with grates.

The through holes further comprise a first through hole close to the bottom of the partition wall and used for water passing and a second through hole located at the top of the partition wall and used for ventilation.

The utility model has the advantages that: 1. the side wall and the bottom plate of the effluent pool are poured into an integral structure, and the bottom plate adopts a box type layout, so that the weight of the bottom plate can be greatly reduced, the base stress of the effluent pool is reduced, the rigidity of the bottom plate is greatly improved, the crack resistance of the structure is improved, time-consuming and expensive basic treatment is omitted, the construction is convenient, and the cost is low;

2. the utility model forms an integral communicating structure with the stilling pipe through the internal space of the bottom plate box body, the effluent pool and the water blocking weir, so as to balance the water pressure and solve the anti-floating stability of the structure;

3. the valve is arranged in the pressure equalizing pipe, the valve is in an opening state during the non-operation period of the pump station, and the water level between the water outlet pool and the stilling pool is always in a water level leveling state, so that the anti-floating stability of the water outlet pool is ensured; when the pump station is in operation, the valve is in a closed state, and water in the water outlet pool flows into the stilling pool through the overflow weir;

4. the utility model discloses set up the grate in the concora crush pipe, the grate can avoid rivers debris to get into the concora crush pipe and cause the jam.

The utility model discloses the effluent pool adopts empty box formula bottom plate and the effluent pool side wall structure with bottom plate integral connection, goes out the pool bottom plate and blocks up the weir and be hollow structure, when reducing the base stress by a wide margin, greatly increased the bulk rigidity of effluent pool, improved its ability of resisting the uneven settlement of basis, reduced the construction degree of difficulty and basic treatment engineering volume, the advection pipe that is equipped with the valve has ensured the anti-floating stability of whole effluent pool structure, has very big spreading value.

Drawings

FIG. 1: the utility model discloses a water outlet structure axonometric drawing;

FIG. 2: the water outlet structure of the utility model is schematically viewed from top;

FIG. 3: view A-A of FIG. 2 of the present invention;

wherein: 1-a water outlet pool; 11-a base plate; 12-side wall of water outlet pool; 13-a partition wall; 14 — a first via; 15-a second via; 16-a grate cover plate; 17-a water inlet; 2-water blocking weir; 21-a first flat pressing pipe; 22-fine-toothed comb; 23-a valve; 24-chamfering; 25-a second isobaric tube; 26-structural seams; 3-a stilling pool; 31-stilling pool side wall; 32-end sill.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1-3, the pump station play water structure of this embodiment includes that the pond 1 that arranges in proper order along rivers flow direction, graceful water weir 2 and stilling pool 3, through graceful water weir 3 demarcation between pond 1 and the stilling pool 3, graceful water weir 2 is hollow structure, including the vertical portion that is located pond 1 one side and the slope part that is located stilling pool 3 one side, the slope part that is located stilling pool 3 one side divide into the smooth domatic structure in surface, vertical portion and slope part top are connected and are formed hollow salient in the weir body structure of pond 1 bottom. The structural seam 26 between the effluent pool 1 and the stilling pool 3 is positioned on the slope surface of the inclined part of the water-retaining weir 3, and in order to avoid that water flow impacts the structural seam 26 to stir up water splash, a chamfer 24 is arranged on one side of the structural seam 26 of the stilling pool 3.

The effluent pool 1 of this embodiment includes the bottom plate 11 and pours the effluent pool side wall 12 in bottom plate 11 both sides, and wherein the bottom plate 11 is hollow box structure, includes roof and base plate and is located criss-cross partition wall 13 who arranges between the two, and partition wall 13 plays the reinforcing effect. The bottom plate 11 adopts a hollow structure, which can greatly reduce the pressure of the water outlet pool 1 on the substrate, but the hollow structure needs to consider the anti-floating problem.

As shown in fig. 1 to 3, a water inlet 17 is arranged on the top plate of the bottom plate 11, and a grate cover plate 16 is arranged on the water inlet 17; a second pressure equalizing pipe 25 is arranged on the vertical part of the overflow weir 2 at one side of the effluent pool 1; the bottom of the inclined part of the overflow weir 2 at one side of the stilling pool 3 is provided with a first flat pressing pipe 21. The first pressure equalizing pipe 21 and the second pressure equalizing pipe 25 are both internally provided with a grate 22, and one end of the second pressure equalizing pipe 25 close to the bottom plate 11 is provided with a valve 23. One end of the first flat pressing pipe 21 is communicated with the inner cavity of the water-retaining weir 2, and the other end of the first flat pressing pipe is communicated with the stilling pool 3; one end of the second pressure equalizing pipe 25 is communicated with the inner cavity of the water-retaining weir 2, and the other end is communicated with the inner cavity of the bottom plate 11. Like this the pool 1, inside 11 boxes of bottom plate, the inside cavity of

graceful water weir

2 and 3 formation communicating structures in pool, ensure that water pressure is unanimous.

Meanwhile, the partition wall 13 of the lower portion of the base plate 11 is provided with a plurality of first through holes 14 and second through holes 15 communicating the respective inner spaces, the first through holes 14 being located near the bottom of the partition wall 13 for water passing, and the second through holes 15 being located at the top of the partition wall 13 for ventilation.

During the non-operation period of the pump station, the valve 23 is in an open state, and the water level between the water outlet pool 1 and the stilling pool 3 is always in a flush state, so that the anti-floating stability of the water outlet pool 1 is ensured; during the operation of the pump station, the valve 23 is in a closed state, and the water in the effluent pool 1 flows into the stilling pool 3 through the overflow weir 2.

As shown in fig. 1 to 2, the stilling basin 3 of the present embodiment has a gutter at the rear of the stilling basin 3, and a sill 32 is further provided at the rear of the stilling basin, so that the stilling basin 3 is actually an open box-like structure formed by the stilling basin side walls 31 at both sides, the inclined portion of the water-retaining weir 2, and the sill 32.

The effluent pool 1 of the present invention is actually a dustpan-like structure with a small inlet end and a large outlet end, which is formed by the side walls 12, the bottom plate 11 and the vertical parts of the water-retaining weirs 2 on both sides.

The upstream of the present embodiment refers to the left direction in fig. 2 and 3, and the downstream refers to the right direction in fig. 2 and 3.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pump station goes out water structure which characterized in that: comprises a water outlet pool (1), a water blocking weir (2) and a stilling pool (3) which are sequentially arranged along the flowing direction of water flow; the water outlet pool (1) comprises a bottom plate (11) and water outlet pool side walls (12) poured on two sides of the bottom plate (11); the bottom plate (11) is of a hollow box-shaped structure, and a flat pressing communicating structure of the balance water outlet pool (1) and the stilling pool (3) is arranged between the bottom plate (11) and the water blocking weir (2).

2. The pump station water outlet structure according to claim 1, characterized in that: the flat pressing communicating structure comprises a through hole arranged on the bottom plate (11) and a flat pressing pipe arranged on the water blocking weir (2); a plurality of partition walls (13) which are arranged in a criss-cross mode are arranged in the bottom plate (11); the through holes comprise water inlets (17) penetrating through the top of the bottom plate (11) and extending into the box body of the bottom plate (11) and through holes penetrating through the partition walls (13) and communicating with all partitions of the box body of the bottom plate (11); one end of the pressure equalizing pipe is communicated with the inner space of the bottom plate (11) and the box body, and the other end of the pressure equalizing pipe is communicated with the stilling pool (3) by penetrating through the water retaining weir (2).

3. The pump station water outlet structure according to claim 2, characterized in that: the water blocking weir (2) comprises a vertical weir body positioned on one side of the effluent pool (1) and an inclined weir body positioned on one side of the stilling pool (3); the inclined weir body is an inclined slope structure provided with a transverse structural seam (26), and the upper end of the inclined weir body is connected with the upper end of the vertical weir body to form a hollow weir body structure.

4. The pump station water outlet structure according to claim 3, characterized in that: the pressure equalizing pipe comprises a first pressure equalizing pipe (21) arranged on the inclined weir body and a second pressure equalizing pipe (25) arranged on the vertical weir body; one end of the first flat pressing pipe (21) is communicated with the inner cavity of the water blocking weir (2), and the other end of the first flat pressing pipe is communicated with the stilling pool (3); one end of the second pressure equalizing pipe (25) is communicated with the inner cavity of the water blocking weir (2), and the other end of the second pressure equalizing pipe is communicated with the inner space of the box body of the bottom plate (11).

5. The pump station water outlet structure according to claim 4, characterized in that: and a valve (23) is arranged at one end of the first flat pressing pipe close to the bottom plate (11).

6. The pump station water outlet structure according to claim 4 or 5, characterized in that: the first pressure equalizing pipe (21) and the second pressure equalizing pipe (25) are internally provided with grates (22).

7. The pump station water outlet structure according to claim 2, characterized in that: the through holes comprise a first through hole (14) used for water passing close to the bottom of the partition wall (13) and a second through hole (15) used for ventilation positioned at the top of the partition wall (13).