CN217630362U - A cut dirty device for attaching wall type tunnel rainwater pump station water inlet system - Google Patents

Abstract

The utility model belongs to the technical field of urban drainage system, specifically be a cut dirty device for attaching on wall type tunnel rainwater pump station water intake system. The sewage interception device comprises a transverse ditch, a sand settling well, a water inlet wall penetrating pipe, a grid, a concrete square column, a concrete wall, a grid blockage monitoring probe and the like; wherein, the end of the transverse trench is provided with a sand trap for intercepting silt and garbage for the first time; a secondary mud settling area formed by a grid, a concrete square column and a concrete wall is arranged in the rainwater pump room water collecting tank, so that silt and garbage entering the pump room are further intercepted; set up in secondary silt district and block up monitoring probe, carry out automatic alarm according to the water level of intaking, improve maintenance efficiency. The utility model discloses set up the measure of secondary silt and clearance silt in limited space, the probability that the tunnel rainwater pump house blockked up has significantly reduced. The method can be used for reconstructing tunnels, and is simple and convenient to construct.

Description

A cut dirty device for attaching wall type tunnel rainwater pump station water inlet system

Technical Field

The utility model belongs to the technical field of the urban ponding drainage system, concretely relates to cut dirty device for attaching on wall type tunnel rainwater pump station water intake system.

Background

The utility model discloses mainly be applied to and attach wall type urban tunnel rainwater drainage system, aim at being convenient for block tunnel road surface silt and rubbish and get into the pump station catch basin, avoid influencing the high-efficient operation of water pump.

The construction of the urban tunnel can effectively improve the traffic capacity of the city. In recent years, in the process of urban construction in China, a lot of local governments pay more and more attention to the construction of urban tunnels. Whether the drainage of the tunnel can be properly solved is a key node for ensuring the normal operation of the urban road traffic system. Generally, open section rainwater is removed by building a tunnel rainwater pumping station. The arrangement mode of the rainwater pumping station of the tunnel is generally divided into two modes of building together with the tunnel or separately building. The co-building pump station saves land and cost and can be synchronously constructed with the main body of the tunnel. The operation management of the separately built pump station is more convenient, but the cost of the pump station is higher, and extra land acquisition is needed. Urban tunnels are generally concentrated in urban built-up areas, have high requirements on the environment and are short in land use. Domestic tunnel rainwater pump station adopts and builds formula pump station more, attaches wall type tunnel rainwater pump station promptly. The project research is directed at the sewage intercepting system of the wall-attached type tunnel rainwater pump station.

The open section longitudinal slope of tunnel is big, and the rainwater catchments soon, rivers are urgent, and open section rainwater collection system generally sets up transversal ditch and side ditch and comes the intercepting rivers, and the pump station catch basin is arranged into to the rethread canal. The drainage system of the tunnel generally comprises a transverse ditch, a side ditch, a pipeline, a tunnel rainwater pump station, a water outlet pipe and the like.

According to the running condition of a rainwater pump station of an attached-wall type tunnel in part of an urban area, the sediment deposition in a transverse ditch for water inlet of the pump station is found to be serious, and the speed and the efficiency of road drainage can be influenced. The wall-attached rainwater pump room is generally incapable of being provided with a special grid room for blocking silt due to the limitation of land.

Disclosure of Invention

An object of the utility model is to provide a can avoid the pumping station to intake sediment deposit in the transversal ditch, ensure that the unblocked device that intercepts of wall-attached type tunnel rainwater pumping station water intake system of drainage.

The utility model discloses a cut dirty device for attaching wall type tunnel rainwater pump station water intake system mainly includes:

(1) The water inlet silt system comprises a transverse ditch, a sand settling well and the like;

(2) A tail end grating system comprising a grating, channel steel and the like;

(3) A grid blockage monitoring system comprises an information collecting, transmitting and feedback system.

Specifically, the utility model relates to a be used for attaching wall type urban tunnel rainwater drainage system to cut dirty device, its structure is seen as referring to fig. 1, fig. 2 and fig. 3 and is shown, include: transversal ditch 1, sand sediment well 2, the wall pipe 3 that passes through of intaking, grid 4, concrete square column 5, concrete wall 6, channel-section steel 7, grid block up monitoring probe 9, wherein:

the transverse ditch 1 comprises a ditch body and a ditch cover and is used for collecting rainwater at an open section of a tunnel; the cross-sectional ditch 1 is used as a water inlet channel of an attached wall type rainwater pump room 15 and is arranged at the opening of a tunnel, and the cross section of the cross-sectional ditch is generally rectangular and can be in other shapes. The groove body is made of reinforced concrete, and the groove cover is made of nodular cast iron;

the sand sediment well 2 is arranged at the tail end of the transverse ditch 1 and is used for settling silt and garbage entering the transverse ditch 1, and the silt and the garbage can be directly removed during later maintenance; the section and the structural form of the sand sediment well 2 are generally consistent with those of the transverse ditch 1, but the well depth is larger than that of the transverse ditch 1 and is used for depositing sediment. Weighing a sand trap 2 as a primary mud settling area;

the water inlet through-wall pipe 3 is used for communicating the sand sediment well 2 with a secondary mud sedimentation area formed by a grid 4, a concrete square column 5 and a concrete wall 6; rainwater directly enters the secondary silt region through the water inlet wall penetrating pipe 3; namely, the secondary mud settling zone is arranged at the tail end of the water inlet through-wall pipe 3.

Further, the bottom elevation of the water inlet through-wall pipe 3 is lower than the bottom elevation of the cross trench 1, but higher than the bottom elevation of the sand sediment well 2;

in the secondary mud deposition area, the concrete square columns 5 are used as a frame structure, are positioned at the top ends of two sides of the secondary mud deposition area, are generally set to be 2 to 3, and the sections of the concrete square columns can be square; concrete walls 6 are connected between the concrete square columns and the side walls of the tunnel to form a surrounding area, and the surrounding area is a secondary mud sedimentation area.

A square hole is formed in the position, L4 away from the pump house bottom plate, of the concrete wall 6, the L4 serves as the secondary sludge deposition depth, and the size of the square hole is determined according to the pipe diameter of the water inlet wall penetrating pipe 3 and the calculated water amount; rainwater entering the secondary sediment area enters the rainwater pump room 15 through the square hole and is finally discharged after being lifted by the rainwater pump 10.

On the concrete square column 5, corresponding to the square hole position department of concrete wall 6, channel-section steel 7 passes through expansion bolts 8 to be fixed on square column 5, grid 4 inserts in channel-section steel 7 to corresponding to the square hole position, be used for further preventing silt and rubbish entering rainwater pump house 15.

The grid 4 may be square in shape; the grid clearance is generally 40mm, and the grid material adopts stainless steel.

The grid 4 is inserted into the channel steel 7, so that the grid 4 can work normally; during maintenance of the pump house, the grating 4 can be lifted by the lifting hook 16 for cleaning and replacement.

The grid blockage monitoring probe 9 is arranged at the grid 4 and is used for collecting water level data information in the secondary sludge deposition area and transmitting the data information to the tunnel management center; in rainy season, when the water level rises obviously, the grid 4 is seriously blocked and needs to be cleaned or replaced immediately.

The utility model discloses in, the initial stage rainwater that gets into in the rainwater pump house 15 is by just rainwater pump 11 nearby row road sewage system.

The utility model discloses well key lies in:

(1) Arranging a sand setting well at the tail end of the transverse ditch to intercept silt and garbage for the first time;

(2) A secondary sludge settling area is arranged in the rainwater pump room water collecting tank, so that silt and garbage entering the pump room are further intercepted;

(3) Set up in secondary heavy mud district and block up monitoring probe, carry out automatic alarm according to the water level of intaking, improve maintenance efficiency.

The utility model discloses set up the measure of secondary silt and clearance silt in limited space, the probability that the tunnel rainwater pump house blockked up has significantly reduced. Can be used for the reformation of the tunnel, and the construction is simple and convenient. Simultaneously, the key facility grid for intercepting the sewage can be easily cleaned and replaced in the maintenance of the pump house.

Drawings

Fig. 1 is a schematic structural plan view of the present invention.

Fig. 2 is a longitudinal sectional view of the structure of the present invention (the transverse groove 1 is along the water inlet direction).

Fig. 3 is a longitudinal sectional view of the structure of the present invention (concrete wall 6 front surface).

Fig. 4 is a longitudinal sectional view of the structure of the present invention (the grid 4 is fixed).

The reference numbers in the figures: 1 is a transverse ditch, 2 is a sand sediment trap, 3 is a water inlet wall penetrating pipe, 4 is a grid, and 5 is a concrete square column; 6 is concrete wall, 7 is channel-section steel, 8 is expansion bolts, 9 is grid blocking probe, 10 is rainwater pump, 11 is first rainwater pump, 14 is urban tunnel, 15 is attaches wall type rainwater pump house. H1 is 2 end elevations in the sand sediment trap, H2 is 10 bottom plate elevations in the rainwater pump room, H3 is 10 middle plate elevations in the rainwater pump room, H4 is the design elevation of the ground where the pump room is located, and H5 is 3 end elevations of the wall pipe for water inflow. L1 is the length of the secondary sediment zone, L2 is the distance between the cross ditches of the tunnel, L3 is the center distance between the water inlet wall pipes, L4 is the height between the concrete wall 6 and the bottom plate of the rainwater pump house, L5 is the height of a square hole in the concrete wall 6, L6 is the sediment depth of the sand sediment well, and L7 is the depth of the cross ditches. b1 is the width of the secondary sludge settling zone, and b2 is the width of the transverse ditch.

Detailed Description

The utility model relates to a cut dirty device is further described below through the specific example.

A tunnel in a certain city is located in the center of the city, rainwater at an open section of the tunnel is removed by adopting a wall-attached rainwater pump room, rainwater pump rooms are arranged at holes at two ends of the tunnel, and rainwater at the open section is collected by each pump room through two transverse ditches with the section sizes of b2 x L7=600mm x 600mm. The material of the transverse ditch 1 is a reinforced concrete structure, and the transverse ditch and the tunnel bottom plate are constructed synchronously; the cover is in grid shape, which is convenient for collecting water and is made of nodular cast iron. The end of each transverse ditch is provided with a sand sediment well 2 with the plane size of 600mm × 500mm, the sand sediment well 2 is limited by the thickness of a tunnel bottom plate, the mud sediment depth L6 of the sand sediment well 2 is 300mm, and rainwater enters a secondary sand sediment area through a DN600 stainless steel wall penetrating pipe 3 after primary sediment of the sand sediment well. The plane size of the secondary sand settling zone is L1 b1=1400mm 800mm, and each water inlet through-wall pipe 3 is provided with a secondary sand settling zone corresponding to the water inlet through-wall pipe. The secondary sand setting area is surrounded by 3 concrete square columns 5 with 300mm × 300mm, 2 concrete walls with 3500mm × 1400mm and 2 concrete walls with 3500mm × 800mm. Holes with the size of 1400mm x 1000mm (L5) are respectively arranged on 2 faces of 3500mm x 1400mm concrete walls, the height (L4) of the bottoms of the holes from the bottom plate of the rainwater pump house is 300mm, and the depth is used for secondary sand setting. Respectively in 3 concrete square columns inboard 300mm all with 4 expansion bolts 8 all fixed 1 10 type channel-section steels 7, insert the stainless steel grid 4 that plane size is 1500mm 1600mm in the channel-section steel, the grid clearance adopts 20mm, as the main facility of intercepting silt and rubbish. And 2 water level monitoring points are arranged in the secondary sand setting area, water level signals are directly transmitted to a tunnel management center, the blocking condition in the pump house can be visually and timely known, and the grating can be easily lifted through the lifting hook manpower of the top of the pump house during the maintenance of the pump house to be cleaned or replaced.

The tunnel is built and put into use in 8 months, 4 rainwater pump rooms are arranged in the tunnel (including a main line and a ramp), and all the pump rooms are provided with the sewage interception facility. The operation is up to now, the dirt blocking facility plays very big protection to the water pump, strengthens the ability of removing danger in pump house greatly, and the sand setting district is also convenient for maintain, clear up, and excellent in use effect.

While, for purposes of simplicity of explanation, the above-described methodologies are shown and described as a series of structures, it is to be understood and appreciated that the methodologies are not limited by detail, as some structures may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, but as may be understood by those of ordinary skill in the art.

The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (3)

1. The utility model provides a cut dirty device for attaching wall type tunnel rainwater pump station water intake system which characterized in that includes: transversal ditch (1), sand setting well (2), wall pipe (3) are crossed in the intaking, grid (4), concrete square column (5), concrete wall (6), channel-section steel (7), grid block up monitoring probe (9), wherein:

the transverse ditch (1) comprises a ditch body and a ditch cover and is used for collecting rainwater at an open section of a tunnel; the transverse ditch (1) is used as a water inlet channel of an attached wall type rainwater pump room (15) and is arranged at the opening of the tunnel; the groove body is made of reinforced concrete, and the groove cover is made of nodular cast iron;

the sand sediment well (2) is arranged at the tail end of the transverse ditch (1) and is used for settling silt and garbage entering the transverse ditch (1), and the silt and the garbage can be directly removed during later maintenance; the section and the structural form of the sand sediment well (2) are both consistent with those of the transverse ditch (1), but the well depth is larger than that of the transverse ditch (1) and is used for depositing sediment;

the water inlet through-wall pipe (3) is used for communicating the sand sediment well (2) with a secondary mud sedimentation area formed by a grid (4), a concrete square column (5) and a concrete wall (6); rainwater directly enters the secondary sediment zone through the water inlet wall penetrating pipe (3);

in the secondary mud deposition area, 2 to 3 concrete square columns (5) are used as a frame structure and positioned at the top ends of two sides of the secondary mud deposition area; concrete walls (6) are adopted to connect the concrete square columns and the side walls of the tunnel to form a surrounding area, and the surrounding area is a secondary mud sedimentation area;

a square hole is formed in the position, L4 away from the pump house bottom plate, of the concrete wall (6), the L4 serves as the secondary mud sedimentation depth, and the size of the square hole is determined according to the pipe diameter of the water inlet wall penetrating pipe (3) and the calculated water amount; rainwater entering the secondary sludge settling area enters a rainwater pump room (15) through the square hole, and is finally lifted by a rainwater pump (10) and then discharged;

on the concrete square column (5), corresponding to the square hole position of the concrete wall (6), the channel steel (7) is fixed on the square column (5) through an expansion bolt (8), and the grating (4) is inserted into the channel steel (7) and corresponds to the square hole position to further prevent silt and garbage from entering a rainwater pump room (15);

and the grid blockage monitoring probe (9) is arranged at the grid (4) and used for collecting water level data information in the secondary sediment zone and transmitting the data information to the tunnel management center.

2. The sewage interception device according to claim 1, characterized in that the bottom level of the water inlet through-wall pipe (3) is lower than the bottom level of the cross-sectional ditch (1) but higher than the bottom level of the sand trap (2).

3. The intercepting apparatus according to claim 1, wherein said grille (4) is square in shape; the grid clearance is 40mm, and the grid material adopts the stainless steel.

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