CN112962646A - Sump and construction method thereof - Google Patents
Sump and construction method thereof Download PDFInfo
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- CN112962646A CN112962646A CN202110229925.3A CN202110229925A CN112962646A CN 112962646 A CN112962646 A CN 112962646A CN 202110229925 A CN202110229925 A CN 202110229925A CN 112962646 A CN112962646 A CN 112962646A
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- seepage
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/22—Lining sumps in trenches or other foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0051—Including fibers
- E02D2300/0053—Including fibers made from glass
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- General Engineering & Computer Science (AREA)
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
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Abstract
The application relates to a water collecting pit and a construction method thereof, belonging to the technical field of basement drainage structures, and comprising a water accumulating tank positioned in an excavated foundation pit, wherein the foundation pit is in a reversed frustum shape with a large upper part and a small lower part, a brick moulding bed is built in the foundation pit, a base plate is cast at the pit bottom of the foundation pit, a vertical anti-seepage plate tightly attached to the brick moulding bed is cast in the brick moulding bed, a horizontal anti-seepage plate extending outwards is cast at the top of the brick moulding bed, and the base plate, the vertical anti-seepage plate and the horizontal anti-seepage plate are integrally cast; a water accumulation groove positioned below the water accumulation tank is formed in the top surface of the base plate, a pipe groove which is vertical and communicated with the water accumulation groove is formed in the inner wall of the vertical anti-seepage plate, and a water drainage pipe is arranged in the pipe groove; a distance is reserved between the water accumulation tank and the vertical anti-seepage plate, and a protective layer is poured; a submersible pump seat is arranged on the bottom plate of the water accumulation tank. This application has the effect of conveniently discharging ponding case percolating water to avoid the sewage after the ponding case bottom plate seepage to persist in the sump pit for a long time and produce influences such as corrosion damage to the sump pit.
Description
Technical Field
The application relates to the field of basement drainage structures, in particular to a water collecting pit and a construction method thereof.
Background
At present, high-rise buildings are provided with basements, and water collecting pits are indispensable structures in the basements, such as special drainage water collecting pits for fire elevators, equipment room drainage water collecting pits, sanitary equipment drainage water collecting pits for basements, ground flushing water collecting pits, ramp rainwater collecting pits for garages and the like. The water collecting pit is mainly used for temporarily collecting sewage and waste water or miscellaneous water to be discharged, and when the sewage and waste water or miscellaneous water is accumulated to a certain water level, a drainage pump arranged in the pit is started to lift the water to an outdoor drainage pipe for discharging.
The invention discloses a basement sump with the prior publication of grant No. CN104863187B, which comprises an impermeable layer, wherein the impermeable layer is of a rectangular structure, the lower surface of the impermeable layer is positioned on a foundation pit, the foundation pit is of a trapezoidal structure, two side surfaces of the top of the foundation pit extend outwards, the impermeable layer is fixed at the extending parts of the two sides of the foundation pit, a reinforcing member is arranged in the foundation pit, two ends of the reinforcing member are embedded and arranged in the foundation pit, the reinforcing member is connected with the foundation pit through cement pouring, a water accumulation cavity is arranged on the upper surface of the reinforcing member, the water accumulation cavity is connected with the reinforcing member through a locking device, the locking device is detachably connected with the water accumulation cavity and the reinforcing member through flanges, a water seepage pipe is arranged on the upper surface of the water accumulation cavity, the bottom of the water seepage pipe extends into the water accumulation cavity, the top of the water seepage.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: only become the sump pit with basement bottom plate body structure into with basement bottom plate detached ponding chamber, on the reinforcement in the foundation ditch was fixed in the ponding chamber, there was the space between ponding chamber and the foundation ditch bottom, when the bottom in ponding chamber appears the damage and when taking place the seepage, can accumulate sewage in the space between ponding chamber and foundation ditch, these sewage can't discharge for a long time can produce adverse effect to foundation ditch hole wall, need carry out destructive construction and just can drain it away.
Disclosure of Invention
In order to conveniently drain the seepage water at the bottom of the water collecting pit in time and avoid the damage influence on the water collecting pit caused by the long-time retention of sewage in the foundation pit, the application provides the water collecting pit and the construction method thereof.
The application provides a sump pit adopts following technical scheme:
a water collecting pit comprises a water accumulating tank which is positioned in an excavated foundation pit and has an opening at the top end, the foundation pit is in a reversed frustum shape with a large upper part and a small lower part, a brick moulding bed which is tightly attached to the side wall of the foundation pit is built in the foundation pit, a base plate is cast at the bottom of the foundation pit, a vertical anti-seepage plate which is tightly attached to the brick moulding bed is cast in the brick moulding bed, a horizontal anti-seepage plate which extends outwards is cast at the top of the brick moulding bed, and the base plate, the vertical anti-seepage plate and the horizontal anti-seepage plate are integrally cast; a water accumulation groove positioned below the water accumulation tank is formed in the top surface of the base plate, a pipe groove which is vertical and communicated with the water accumulation groove is formed in the inner wall of the vertical anti-seepage plate, and a water drainage pipe is arranged in the pipe groove; a distance is reserved between the water accumulation tank and the vertical anti-seepage plate, and a protective layer is poured; and a submersible pump seat is arranged on the bottom plate of the water accumulating tank.
By adopting the technical scheme, the water accumulation groove is formed in the base plate below the water accumulation tank, the pipe groove communicated with the water accumulation groove is formed in the vertical anti-seepage plate, and leaked sewage can be drained timely after the bottom of the water accumulation tank leaks, so that the leaked sewage is prevented from being reserved for a long time; meanwhile, the water collecting pit and the base plate are arranged in a split manner, so that the influence of the bottom plate on the water collecting tank is reduced; when leakage occurs at the bottom of the water accumulating tank, the submersible pump and the drain pipe can be used for draining water synchronously, the bottom plate of the water accumulating tank leaks, and the bottom plate is repaired after being dried, so that the water of the water accumulating tank is drained more thoroughly.
Preferably, a cushion layer is poured between the base plate and the bottom of the foundation pit, an anti-seepage blanket is paved on the top surface of the cushion layer, and a fine sand layer is paved on the top surface of the anti-seepage blanket.
Through adopting above-mentioned technical scheme, the bottom water repellent of reinforcing sump pit avoids groundwater to get into in the foundation ditch.
Preferably, the water accumulating box is of a prefabricated structure, an embedded sleeve is arranged at the top of a side plate of the water accumulating box, the top end of the embedded sleeve is flush with the top surface of the side plate, the embedded sleeve is in threaded connection with a lifting ring nut, and the embedded sleeve is uniformly distributed in the side plate in a plurality.
Through adopting above-mentioned technical scheme for the construction progress of sump pit, prefabricate the ponding case in the mill, later with the ponding case handling to the foundation ditch in can, pull down eye nut and fill buried sleeve with plain cement after the sump pit installation is accomplished.
Preferably, a clamping groove surrounding the water accumulating tank is formed in the top end of a side plate of the water accumulating tank, a cover plate which is horizontal and used for sealing the water accumulating tank is arranged above the water accumulating tank, a clamping strip which is matched with the clamping groove and is inserted into the clamping groove is fixed on the side wall of the cover plate, a plurality of water inlet holes penetrating through the plate surface are formed in the cover plate, and a water pumping hole is formed in the cover plate.
Through adopting above-mentioned technical scheme, seal the ponding case opening, inside sewage got into the ponding case by the inlet opening.
Preferably, a deodorization assembly for preventing gas in the water accumulation tank from being discharged is arranged in the water inlet hole.
Through adopting above-mentioned technical scheme, because mostly be sewage in the ponding case, the peculiar smell is great, consequently utilizes deodorant subassembly to avoid dirty gas to discharge through the inlet opening.
Preferably, the top surface of the horizontal impermeable plate is inclined towards the water collecting tank.
Through adopting above-mentioned technical scheme for sewage flows to ponding tank.
Preferably, a water pumping indicating assembly is arranged on the upper portion of the inner wall of the side plate of the water accumulating tank, and a shutdown indicating assembly is arranged on the lower portion of the inner wall of the side plate of the water accumulating tank.
By adopting the technical scheme, when the water level in the water accumulation tank rises to the warning height, the water pumping indicating component transmits a signal to the control system, and the submersible pump is started to pump water; when the water level in the water accumulation tank drops to the warning water level, the shutdown indicating assembly transmits a signal to the control system, the submersible pump stops working, and automatic drainage of the water accumulation tank is achieved.
On the other hand, the construction method of the water collecting pit adopts the following technical scheme:
a construction method of a water collecting pit comprises the following steps:
s1, excavating the foundation pit, measuring and setting out, excavating the outline of the foundation pit layer by layer from bottom to top according to the excavation size, and then manually repairing the bottom and the slope to enable the foundation pit to meet the requirements of the next construction;
s2, building a brick forming die, and building the brick forming die by using bricks in the foundation pit;
s3, pouring a base plate and an anti-seepage plate, wherein the base plate, the vertical anti-seepage plate and the horizontal anti-seepage plate are integrally poured; reserving or excavating a water accumulation groove on the base plate, reserving or excavating a pipe groove communicated with the water accumulation groove on the inner wall of the vertical anti-seepage plate, and fixing a drain pipe in the pipe groove;
s4, hoisting the water accumulation tank, connecting the lifting ring nut to the embedded sleeve, hoisting the water accumulation tank into the foundation pit and primarily fixing; unloading the ring nut and filling the embedded sleeve with plain cement;
and S5, casting the protective layer, and casting the protective layer between the water accumulation tank and the vertical anti-seepage plate to connect the water accumulation tank and the vertical anti-seepage plate into a whole.
By adopting the technical scheme, the construction of the water collecting pit is completed, the water accumulating tank and the base plate are arranged in a split mode, and leakage sewage can be timely drained away when leakage occurs at the bottom of the water accumulating tank.
Preferably, the surface of the bottom plate of the water accumulation tank is subjected to anti-corrosion treatment, the first layer of epoxy resin is coated, and then the first layer of fiber glass cloth is attached; and painting a second epoxy resin layer, then pasting a second glass fiber cloth layer, and finally painting epoxy mortar.
Through adopting above-mentioned technical scheme, because the corrosivity of sewage is stronger, need to accumulate inside the water tank and have certain corrosion protection, above-mentioned processing can strengthen the anticorrosive effect of ponding bottom of the case board.
In summary, the water accumulation tank is arranged on the base plate while the waterproof effect of the water collection pit is guaranteed, so that sewage can be collected and discharged in time by using the drain pipe when the bottom plate of the water accumulation tank leaks, the adverse effect on the water collection pit caused by long-time retention of the sewage in the water collection pit is avoided, and meanwhile, the water accumulation tank and the base plate are arranged in a split mode, so that the effect of the base plate on the water accumulation tank is reduced; the water accumulating tank with the prefabricated structure can accelerate the construction progress and guarantee the quality of the water accumulating tank.
Drawings
FIG. 1 is a cross-sectional view of a sump of an embodiment of the present application.
Fig. 2 is a top view of a sump according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a water accumulating tank of a sump according to an embodiment of the present application.
FIG. 4 is a schematic diagram of a configuration of a odor barrier assembly of a sump in accordance with an embodiment of the present application.
Fig. 5 is a schematic structural view of a pump indicating assembly and a shut-down indicating assembly of the sump according to an embodiment of the present disclosure.
Description of reference numerals: 1. a foundation pit; 11. a cushion layer; 12. an impermeable blanket; 2. a substrate; 21. a water accumulation tank; 3. a water accumulation tank; 31. a base plate; 32. a side plate; 321. pre-burying a sleeve; 322. a lifting eye nut; 33. a submersible pump mount; 34. a card slot; 35. an anticorrosive layer; 36. a protective layer; 37. a water pumping indicating component; 371. a first rotating lever; 372. a first floating ball; 373. a first pressure sensor; 38. a shutdown indication component; 381. a second rotating lever; 382. a second floating ball; 383. a second pressure sensor; 4. a brick molding bed; 5. a horizontal impermeable plate; 51. a water collecting ditch; 6. a vertical impervious plate; 61. a pipe groove; 7. a cover plate; 71. clamping the strip; 72. a water inlet hole; 73. a water pumping hole; 74. a manhole; 8. a deodorizing component; 81. a water inlet pipe; 82. and a baffle plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a sump. Referring to fig. 1 and 2, the sump includes a prefabricated water accumulation tank 3 located within the excavated pit 1. The foundation pit 1 is in a shape of an inverted frustum with a large upper part and a small lower part. The water accumulating box 3 is positioned in the middle of the foundation pit 1. The water accumulating tank 3 is in a cubic shape with an open top end. The included angle between the side wall of the foundation pit 1 and the horizontal plane is 135 degrees.
And a brick moulding bed 4 surrounding the foundation pit 1 is built at the side wall of the foundation pit 1. The inner wall of the brick mould 4 is vertical, and the outer wall is matched with the inclined plane of the foundation pit 1. The top end of the brick moulding bed 4 is flush with the top end of the foundation pit 1.
And pouring a concrete cushion 11 at the bottom of the foundation pit 1. The cushion layer 11 is made of impervious concrete, and the thickness of the cushion layer 11 is 20 cm.
The top surface of the cushion layer 11 is paved with an impermeable blanket 12, and the top surface of the impermeable blanket 12 is paved with a fine sand layer. The thickness of the fine sand layer is 10 cm.
The fine sand layer is cast with a horizontal base plate 2. The substrate 2 is of a rigid structure, and the structural steel is added in the substrate, so that the ductility of the substrate 2 is improved, and the anti-damage capability of the substrate 2 is improved. The surface of the substrate 2 is subjected to water repellent treatment.
A vertical anti-seepage plate 6 integrated with the base plate 2 is poured inside the brick mould 4 above the base plate 2, and the top end of the vertical anti-seepage plate 6 is higher than the foundation pit 1. And a horizontal anti-seepage plate 5 is integrally cast on the outer wall of the vertical anti-seepage plate 6. The bottom surface of the horizontal anti-seepage plate 5 is tightly attached to the top end of the foundation pit 1.
The vertical anti-seepage plate 6 is pre-embedded with reinforcing steel bars extending towards the interior of the foundation pit 1. The water accumulation tank 3 is of a prefabricated concrete structure. The side plate 32 of the water collecting tank 3 is embedded with steel bars which extend outwards. The water accumulation tank 3 is positioned between the vertical anti-seepage plates 6 and has a distance with the vertical anti-seepage plates 6. The top end of the water accumulation tank 3 is flush with the top end of the horizontal impermeable plate 5. The bottom end of the water accumulating tank 3 is closely attached to the top surface of the substrate 2.
And a protective layer 36 is poured between the side plate 32 of the water accumulation tank 3 and the vertical impermeable plate 6. The top end of the protective layer 36 is flush with the top end of the vertical impermeable plate 6.
A horizontal water accumulating groove 21 is formed in the middle of the position, below the bottom plate 31 of the water accumulating box 3, on the top surface of the base plate 2, and a vertical pipe groove 61 is formed in the inner wall of the vertical anti-seepage plate 6. The bottom end of the pipe groove 61 is communicated with the water collecting groove 21, and the top end of the pipe groove penetrates through the top surface of the vertical anti-seepage plate 6. A drain pipe is arranged in the pipe groove 61, and a liquid level sensor is arranged at the lower end in the drain pipe. The liquid level sensor is connected with an external alarm device. The top end of the drain pipe extends outwards and is connected with a drain device. When the seepage takes place for water accumulation tank 3 bottom, level sensor in the drain pipe can the perception weeping, sends the warning, reminds staff water accumulation tank 3 damaged to appear, needs in time take inside sewage out to repair. The leaked sewage is drained away through the drain pipe by utilizing drainage equipment, and can not be retained in the foundation pit 1 for a long time.
A submersible pump seat 33 is fixed on the surface of the bottom plate 31 in the water collecting tank 3 and used for installing a submersible pump. The inner walls of the side plates 32 and the bottom plate 31 of the water accumulation tank 3 are coated with an anticorrosive layer 35.
The top opening of the water accumulation tank 3 is closed by a cover plate 7. The cover plate 7 is a prefabricated plate. The top end of the side plate 32 of the water accumulation tank 3 is provided with a clamping groove 34, and the clamping grooves 34 are uniformly arranged on the side plate 32 of the water accumulation tank 3.
A clamping strip 71 which extends outwards and is matched with the clamping groove 34 is fixed on the side wall of the cover plate 7. The cover plate 7 is supported on the top end of the side plate 32 and the top end of the water accumulating box 3 is closed by inserting the clamping strip 71 of the cover plate 7 into the clamping groove 34.
The top surface of the horizontal anti-seepage plate 5 is provided with a water collecting ditch 51 communicated with the inside of the water collecting tank 3. A catchment channel 51 is arranged around the catchment tank 3. For better collection of the sewage, the top surface of the horizontal impermeable plate 5 is arranged inclined towards the header tank 3 at an inclination of 3-5 °.
Referring to fig. 3, the side plate 32 of the water accumulating tank 3 is provided at an upper portion thereof with an insert sleeve 321. The embedment sleeve 321 is positioned in the side plate 32 and the top end is flush with the top end of the side plate 32. The embedded sleeves 321 are arranged on the four side plates 32 and are in threaded connection with eye nuts 322 positioned on the outer sides of the side plates 32. The water accumulation tank 3 is conveniently hoisted by matching the embedded sleeve 321 with the lifting ring nut 322. After the hoisting is completed, the eye nut 322 is removed, and the embedded sleeve 321 is filled with the plain cement.
Referring to fig. 2 and 4, a water inlet 72 communicated with the water collecting channel 51 and penetrating through the cover plate 7 is formed on the top surface of the cover plate 7, and the deodorization assembly 8 is fixed in the water inlet 72. The deodorising block 8 comprises a water inlet pipe 81 which is located in the water inlet 72 and is fixedly connected to the cover plate 7. The inlet pipe 81 is divided into two portions with different inner diameters, wherein the inner diameter of the upper portion is smaller than that of the lower portion. A baffle 82 is arranged at the lower part of the water inlet pipe 81 close to the upper part, and the baffle 82 is connected to the pipe wall of the water inlet pipe 81 by an elastic strip. The baffle 82 has a diameter matching the lower portion of the inlet pipe 81 and larger than the inner diameter of the upper portion. When only little water is in the water inlet pipe 81, the baffle 82 plays a sealing role, the deodorization effect is achieved by utilizing the water seal principle, when the water discharge is increased and the force of the elastic strip is not enough to support, the baffle 82 rotates, and water flows into the water collecting tank 3.
The cover plate 7 is further provided with a water pumping hole 73 for passing a water pumping pipe connected with the submersible pump and a manhole 74 convenient for people to enter. The manhole 74 is closed with a manhole cover.
Referring to fig. 5, a pumping indicator assembly 37 is fixed to an upper portion of an inner wall of the side plate 32 of the water accumulation chamber 3. The pumping indicator assembly 37 includes a first rotating rod 371 hinged to the side plate 32. The first rotating rod 371 rotates in a vertical plane with the rotating shaft being parallel to the side plate 32. A first floating ball 372 is fixed at one end of the first rotating rod 371 away from the hinge joint. A first pressure sensor 373 is fixed to the side plate 32 above the hinge. The distance from the first pressure sensor 373 to the hinge is matched to the length of the first rotating rod 371. When the first floating ball 372 floats upwards under the action of buoyancy and abuts against the first pressure sensor 373, the first pressure sensor 373 transmits a signal to the control system, and the control system sends a starting instruction to the submersible pump in the water accumulation tank 3 to pump water.
A shutdown indicator assembly 38 is secured to a lower portion of the inner wall of the side panel 32. The shutdown indicator assembly 38 comprises a second rotating lever 381 hinged on the side plate 32. The second rotating lever 381 rotates in a vertical plane with the rotation axis parallel to the side plate 32. A second floating ball 382 is fixed to an end of the second rotating rod 381 remote from the hinge. A second pressure sensor 383 is fixed to the side plate 32 below the hinge. The distance of the second pressure sensor 383 from the hinge matches the length of the second rotating rod 381. When the second floating ball 382 is pressed against the second pressure sensor 383 along with the drop of the water level in the water accumulation tank 3, the second pressure sensor 383 transmits a signal to the control system, and the control system sends a starting instruction to the submersible pump in the water accumulation tank 3 to stop the water pumping operation.
In order to pump water more thoroughly, the second floating ball 382 is abutted against the second pressure sensor 383, and only a rotation distance allowing the second rotating rod 381 is reserved from the bottom plate 31.
In another embodiment, the top surface of the base plate 31 may be provided as a slope inclined toward the second shutdown indicator assembly 38.
In another embodiment, the water accumulation chamber 3 may also be ring-shaped.
Waterproof treatment is performed between the side wall of the foundation pit 1 and the brick moulding bed 4, between the brick moulding bed 4 and the vertical anti-seepage plate 6 and between the brick moulding bed 4 and the horizontal anti-seepage plate 5, and the waterproof mode is not limited to waterproof cloth, waterproof plates and other waterproof coiled materials.
The embodiment of the application discloses a construction method of a water collecting pit. The construction method of the water collecting pit comprises the following steps:
s1, excavating the foundation pit, measuring and setting out, excavating the outline of the foundation pit 1 layer by layer from bottom to top according to the excavation size, then manually repairing the bottom and the slope to enable the foundation pit 1 to meet the next construction requirement, and performing primary waterproof treatment in the foundation pit 1;
s2, building a brick molding bed, namely building a brick molding bed 4 at the side wall of the foundation pit 1 by using bricks, so that the top surface of the brick molding bed 4 is flush with the top surface of the foundation pit 1; then, performing waterproof treatment on the inner wall and the top surface of the brick molding bed 4;
s3, pouring a cushion layer, pouring the cushion layer 11 between the brick moulding beds 4 at the bottom of the foundation pit 1, and paving the anti-seepage blanket 12 after the strength of the cushion layer 11 meets the requirement to ensure the paving flatness of the anti-seepage blanket 12; after the impermeable blanket 12 is laid, a fine sand layer is paved;
s4, casting a base plate, namely casting a vertical impervious plate 6 and a horizontal impervious plate 5 on the inner side and the top of the brick moulding bed 4 respectively, and casting the base plate 2, the horizontal impervious plate 5 and the vertical impervious plate 6 integrally; reserving a water accumulation groove 21 on the base plate 2, then forming a pipe groove 61 on the vertical anti-seepage plate 6, ensuring that the pipe groove 61 is communicated with the water accumulation groove 21, and preliminarily fixing a drain pipe;
s5, hoisting the prefabricated water accumulating tank 3, connecting the lifting ring nut 322 to the embedded sleeve 321, hoisting the water accumulating tank 3 to the central position in the foundation pit 1, and primarily fixing; the embedded sleeve 321 is filled with the plain cement after the lifting eye nut 322 is dismounted; the submersible pump seat 33, the water pumping indicating assembly 37 and the shutdown indicating assembly 38 are installed in the water accumulating tank 3 in advance;
s6, pouring the protective layer 36, and pouring the protective layer 36 between the vertical anti-seepage plate 6 and the water accumulation tank 3 to connect the water accumulation tank 3 and the vertical anti-seepage plate 6 into a whole;
s7, excavating the water collecting ditches 51, and excavating the water collecting ditches 51 with the same number according to the number of the water inlet holes 72 of the cover plate 7;
and S8, installing the cover plate 7, and leading the water pumping pipe out of the water pumping hole 73.
The corrosion prevention of the bottom plate 31 of the water accumulation tank 3 is treated by the following method: painting a first epoxy resin layer and then pasting a first fiberglass cloth layer; and painting a second epoxy resin layer, then pasting a second glass fiber cloth layer, and finally smearing epoxy mortar with the thickness of 20 mm.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a sump pit, is including being located excavation foundation ditch (1) and open-topped ponding case (3), its characterized in that: the foundation pit (1) is in a reversed frustum shape with a large upper part and a small lower part, a brick moulding bed (4) tightly attached to the side wall of the foundation pit (1) is built in the foundation pit (1), a base plate (2) is poured at the bottom of the foundation pit (1), a vertical anti-seepage plate (6) tightly attached to the brick moulding bed (4) is poured in the brick moulding bed (4), a horizontal anti-seepage plate (5) extending outwards is poured at the top of the brick moulding bed (4), and the base plate (2), the vertical anti-seepage plate (6) and the horizontal anti-seepage plate (5) are integrally poured; a water accumulation groove (21) positioned below the water accumulation tank (3) is formed in the top surface of the base plate (2), a pipe groove (61) which is vertical and communicated with the water accumulation groove (21) is formed in the inner wall of the vertical anti-seepage plate (6), and a water drainage pipe is installed in the pipe groove (61); a distance is reserved between the water accumulation tank (3) and the vertical anti-seepage plate (6), and a protective layer (36) is poured; a submersible pump seat (33) is arranged on a bottom plate (31) of the water accumulating tank (3).
2. The sump of claim 1, wherein: a cushion layer (11) is poured between the base plate (2) and the bottom of the foundation pit (1), an anti-seepage blanket (12) is laid on the top surface of the cushion layer (11), and a fine sand layer is laid on the top surface of the anti-seepage blanket (12).
3. The sump of claim 1, wherein: the water accumulation tank (3) is of a prefabricated structure, a pre-embedded sleeve (321) is arranged at the top of a side plate (32) of the water accumulation tank (3), the top end of the pre-embedded sleeve (321) is flush with the top surface of the side plate (32), the pre-embedded sleeve (321) is in threaded connection with a lifting ring nut (322), and the pre-embedded sleeve (321) is uniformly distributed in the side plate (32) in a plurality.
4. The sump of claim 1, wherein: the water storage tank is characterized in that a clamping groove (34) surrounding the water storage tank (3) is formed in the top end of a side plate (32) of the water storage tank (3), a cover plate (7) which is horizontal and used for sealing the water storage tank (3) is arranged above the water storage tank (3), a clamping strip (71) which is matched with the clamping groove (34) and is inserted into the clamping groove (34) is fixed on the side wall of the cover plate (7), a plurality of water inlet holes (72) penetrating through the plate surface are formed in the cover plate (7), and a water pumping hole (73) is formed in the cover plate (7).
5. The sump of claim 4, wherein: and a deodorization assembly (8) for preventing gas in the water accumulation tank (3) from being discharged is arranged in the water inlet hole (72).
6. The sump of claim 1, wherein: the top surface of the horizontal seepage-proofing plate (5) inclines towards the water accumulation tank (3).
7. The sump of claim 1, wherein: the water pumping indicating assembly (37) is arranged on the upper portion of the inner wall of the side plate (32) of the water accumulating box (3), and the closing indicating assembly (38) is arranged on the lower portion of the inner wall of the side plate (32) of the water accumulating box (3).
8. A method of constructing a sump according to claim 3, the method comprising:
s1, excavating the foundation pit, measuring and setting out, excavating the outline of the foundation pit (1) layer by layer from bottom to top according to the excavation size, and then manually repairing the bottom and the slope to enable the foundation pit (1) to meet the requirements of the next construction;
s2, building a brick molding bed, and building a brick molding bed (4) in the foundation pit (1) by using bricks;
s3, casting a base plate and an anti-seepage plate, wherein the base plate (2), the vertical anti-seepage plate (6) and the horizontal anti-seepage plate (5) are integrally cast; a water accumulation groove (21) is reserved or excavated on the base plate (2), a pipe groove (61) communicated with the water accumulation groove (21) is reserved or excavated on the inner wall of the vertical anti-seepage plate (6), and a drain pipe is fixed in the pipe groove (61);
s4, hoisting the water accumulating tank (3), connecting the lifting ring nut (322) to the embedded sleeve (321), and hoisting the water accumulating tank (3) into the foundation pit (1) and primarily fixing; after the lifting ring nut (322) is dismounted, the embedded sleeve (321) is filled with the plain cement;
and S5, pouring a protective layer, namely pouring the protective layer (36) between the water accumulation tank (3) and the vertical anti-seepage plate (6) to connect the water accumulation tank (3) and the vertical anti-seepage plate (6) into a whole.
9. The method of constructing a sump according to claim 8, wherein: performing anti-corrosion treatment on the surface of a bottom plate (31) of the water accumulation tank (3), firstly coating a first epoxy resin layer, and then adhering a first fiberglass cloth layer; and painting a second epoxy resin layer, then pasting a second glass fiber cloth layer, and finally painting epoxy mortar.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114961253A (en) * | 2022-05-29 | 2022-08-30 | 中国五冶集团有限公司 | Construction method of triangular pyramid of water tank of sewage treatment station |
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| CN103912009A (en) * | 2014-04-18 | 2014-07-09 | 二十二冶集团第一建设有限公司 | Quicksand high-rise residence foundation sump construction method |
| CN207512745U (en) * | 2017-05-12 | 2018-06-19 | 中建二局第三建筑工程有限公司 | A kind of caisson device and its foundation pit structure |
| CN209669902U (en) * | 2018-11-07 | 2019-11-22 | 山西五建集团有限公司 | Basic catch pit infiltration drainage system |
| CN111088842A (en) * | 2019-12-30 | 2020-05-01 | 倡创(上海)咨询管理事务所 | Comprehensive treatment construction method combining seepage prevention and drainage of foundation pit of elevator shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103912009A (en) * | 2014-04-18 | 2014-07-09 | 二十二冶集团第一建设有限公司 | Quicksand high-rise residence foundation sump construction method |
| CN207512745U (en) * | 2017-05-12 | 2018-06-19 | 中建二局第三建筑工程有限公司 | A kind of caisson device and its foundation pit structure |
| CN209669902U (en) * | 2018-11-07 | 2019-11-22 | 山西五建集团有限公司 | Basic catch pit infiltration drainage system |
| CN111088842A (en) * | 2019-12-30 | 2020-05-01 | 倡创(上海)咨询管理事务所 | Comprehensive treatment construction method combining seepage prevention and drainage of foundation pit of elevator shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114961253A (en) * | 2022-05-29 | 2022-08-30 | 中国五冶集团有限公司 | Construction method of triangular pyramid of water tank of sewage treatment station |
| CN114961253B (en) * | 2022-05-29 | 2023-08-29 | 中国五冶集团有限公司 | Construction method of sewage treatment station pool triangular pyramid |
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