CN111980075A - Basement anti-floating structure and construction method thereof - Google Patents
Basement anti-floating structure and construction method thereof Download PDFInfo
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- CN111980075A CN111980075A CN201910430474.2A CN201910430474A CN111980075A CN 111980075 A CN111980075 A CN 111980075A CN 201910430474 A CN201910430474 A CN 201910430474A CN 111980075 A CN111980075 A CN 111980075A
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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
- E02D31/10—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 soil pressure or hydraulic pressure
- E02D31/12—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 soil pressure or hydraulic pressure against upward hydraulic pressure
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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
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- General Engineering & Computer Science (AREA)
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a basement anti-floating structure and a construction method thereof, wherein the anti-floating structure comprises a base pre-embedded in a bottom plate in a basement, a steel pipe bundle is arranged on the base, the upper end of the base is inserted into the lower end of the steel pipe bundle and fixed with the steel pipe bundle, and the steel pipe bundle is used as a bearing wall of the basement; a drainage mechanism is arranged in the steel pipe bundle and the base, the drainage mechanism comprises an accommodating cavity arranged in the base, and a water inlet pipe inserted into the base and communicated with the upper end of the accommodating cavity is arranged on the side surface of the bottom plate; a water drainage pipe is arranged in the steel pipe bundle, one end of the water drainage pipe extends into the accommodating cavity, and the other end of the water drainage pipe penetrates through the steel pipe bundle and is connected with a water pump; the upper end of the inner wall of the accommodating cavity is provided with a liquid level sensor, a controller which is coupled to the liquid level sensor and controls the starting of the water pump to be started according to a detection signal of the liquid level sensor is arranged outside the accommodating cavity, and the controller uses a PLC (programmable logic controller). The invention can actively drain underground water, reduce underground water and achieve the anti-floating purpose of the basement, and the basement is not easy to be damaged.
Description
Technical Field
The invention relates to the technical field of basement anti-floating, in particular to a basement anti-floating structure and a construction method thereof.
Background
The anti-floating of civil underground engineering becomes a link which needs to be considered and solved in structural design, and the anti-floating design is particularly important in areas with abundant underground water, especially when the basement is buried deeply.
At present, an anti-floating pile is often connected with a basement bottom plate to form an anti-floating structure, and when the basement receives large buoyancy, stress concentration is easily formed at the joint of the basement bottom plate and the anti-floating pile, so that cracking and damage of the basement are caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the anti-floating structure of the basement and the construction method thereof, and the anti-floating structure has the advantages that underground water can be actively drained, the underground water is reduced, the anti-floating purpose of the basement is achieved, and the basement is not easy to damage.
The first technical purpose of the invention is realized by the following technical scheme: a basement anti-floating structure comprises bases pre-embedded in a bottom plate in a basement, wherein the bases are arranged along the edge of the bottom plate and are independent of each other; the basement is provided with a steel pipe bundle, the upper end of the basement is inserted into the lower end of the steel pipe bundle and fixed with the steel pipe bundle, and the steel pipe bundle is used as a bearing wall of the basement; a drainage mechanism is arranged in the steel pipe bundle and the base, the drainage mechanism comprises an accommodating cavity arranged in the base, and a water inlet pipe inserted into the base and communicated with the upper end of the accommodating cavity is arranged on the side surface of the bottom plate; a water drainage pipe is arranged in the steel pipe bundle, one end of the water drainage pipe extends into the accommodating cavity, and the other end of the water drainage pipe penetrates through the steel pipe bundle and is connected with a water pump; the upper end of holding the intracavity wall is provided with level sensor, it is coupled in level sensor and according to level sensor's detection signal control start-up water pump controller of opening and close to be equipped with outside the chamber to hold, and the controller uses the PLC controller.
By adopting the technical scheme, before the basement is constructed, namely a certain working surface is left between the outer wall surface of the basement and the inner wall of the foundation pit, rainwater is easy to gather in the construction surface if the basement is rainy, and the working surface is narrow, so that the water level in the working surface is easy to rise rapidly, and the basement bears huge buoyancy;
when the water level of the accumulated water in the working surface is above, the accumulated water flows into the accommodating cavity through the water inlet pipe, when the water level in the accommodating cavity touches the liquid level sensor, the liquid level sensor sends an electric signal to the PLC controller, the PLC controller controls the water pump to be started to pump the accumulated water in the accommodating cavity out to the container in the basement for storage after receiving the electric signal, and therefore when the water level of the accumulated water in the working surface is reduced, the dead weight of the basement is increased, and the anti-floating of the basement is achieved; and after the weather is improved, the collected water in the basement is treated.
Because the drainage structures such as the drainage pipe, the containing cavity and the like exist in the steel pipe bundle and the base all the time, the drainage structure can be used in the whole life cycle of the building. Specifically, finish at the basement construction to behind the landfill working face, equally can enter into to holding in the chamber and being taken out by the water pump when groundwater level is higher than the entry of oral siphon, and then realized reducing the water level of groundwater, strengthen the bearing capacity of foundation soil, and finally make the building be difficult to subside more.
The invention is further configured to: the base comprises an end plate, a containing barrel fixed on the end plate and a partition plate arranged in the containing barrel, the partition plate divides the containing barrel into an upper part and a lower part, a containing cavity is formed between the partition plate and the base, an insertion hole is formed in the partition plate, and the drain pipe is inserted into the containing cavity from the insertion hole; the base further comprises a supporting plate fixed to the upper end of the outer surface of the containing cylinder, the upper surface of the supporting plate is fixedly connected with the lower end of the steel tube bundle, and the supporting plate is in contact with the upper surface of the bottom plate.
Through adopting above-mentioned technical scheme, set up the backup pad, after steel-pipe bundle and backup pad butt, conveniently restrainted steel-pipe and base welded fastening. Further, the support plate abuts against the upper surface of the bottom plate, so that the bottom plate can also bear the weight of the steel pipe bundle.
The invention is further configured to: be provided with the filter in the drain pipe, the filter includes the cartridge filter of tube-shape, one end in the cartridge filter is provided with the filter screen, and the other end is provided with the filter core, keep certain distance between filter core and the filter screen.
Through adopting above-mentioned technical scheme, the filter is to getting into holding the filtration in the chamber for the water pump is difficult more when taking the ponding that holds in the chamber out and causes the damage to the water pump, prolongs the life of water pump. Keep certain distance between filter core and the filter screen and get into the buffer space of filter as ponding, and then make ponding can enter into to the filter in the more efficient.
The invention is further configured to: the filter element comprises net frames at two ends of the filter element and a filter layer positioned between the two net frames.
Through adopting above-mentioned technical scheme, the filter layer adopts cotton fibre, active carbon to fill and forms, and the screen frame sets up and can avoid in the filter layer that the raw materials for filtration reveal at the both ends of filter layer.
The invention is further configured to: the base is in including setting up the cushion of the bottom of holding the chamber, the lower extreme edge butt of drain pipe is on the cushion.
Through adopting above-mentioned technical scheme, ensure to leave certain distance between the lower extreme of drain pipe and the bottom that holds the chamber for the entering into to the drain pipe that ponding in holding the chamber can be better.
The invention is further configured to: the containing cavities in the adjacent bases are communicated through connecting pipes, a drain pipe is arranged in one steel pipe bundle of the plurality of steel pipe bundles every other, and the drain pipe penetrates out of the steel pipe bundle at the splicing position of the upper adjacent steel pipe bundle and the lower adjacent steel pipe bundle.
Through adopting above-mentioned technical scheme, the chamber that holds in the base passes through the connecting pipe intercommunication, and then makes a water pump can get rid of a plurality of ponding that hold in the chamber promptly, improves the utilization efficiency of water pump.
The first technical purpose of the invention is realized by the following technical scheme: a construction method of a basement anti-floating structure comprises the following construction steps:
the method comprises the following steps: connecting the accommodating cavities in the adjacent bases by using connecting pipes; and connecting the water inlet pipe with the accommodating cavity;
step two: erecting a formwork and pouring to form a bottom plate;
step three: before the bottom plate is not solidified, a support plate is welded and fixed on the outer side of the upper end of the containing cylinder, and the upper end face of the support plate is kept flush with the upper end face of the bottom plate;
step four: the drain pipe is stretched into the steel pipe bundle, then the drain pipe and one end of the steel pipe bundle are respectively connected by using ropes, and then the drain pipe and the steel pipe bundle are hoisted by using the same hoisting equipment;
step five: after the upper ends of the drain pipe and the steel pipe bundle are lifted, the drain pipe extends out of the lower end of the steel pipe bundle, and then the drain pipe is aligned and inserted into the accommodating cavity from the insertion hole to be abutted against the cushion block;
step six: after the drain pipe is inserted into the accommodating cavity, a gap for personnel to enter is reserved between the steel pipe bundle and the supporting plate, and then sealant is coated on the contact part of the drain pipe and the insertion hole;
step seven: continuously downwards placing the steel pipe bundle by using hoisting equipment, then enabling the lower end of the steel pipe bundle to surround the accommodating cylinder, enabling the lower end of the steel pipe bundle to abut against the supporting plate, and then welding the supporting plate and the lower end of the steel pipe bundle together;
Step eight: the upper end of the drain pipe is connected with an elbow, an extension hole allowing the extension pipe to be inserted is reserved at the upper end of the steel pipe bundle, and the extension pipe is inserted into the extension hole and connected with the elbow;
step nine: and pouring concrete into the steel pipe bundle, and lengthening the steel pipe bundle.
Through adopting above-mentioned technical scheme, firm efficient construction is made and is used for the anti structure that floats of basement, and then improves the anti ability that floats of basement.
The invention is further configured to: and step four, after the bottom plate is solidified.
By adopting the technical scheme, if the step four is carried out before the bottom plate is not consolidated, the support plate is easy to bend when only bearing the weight of the steel pipe bundle, and the bottom plate also bears the weight of the steel pipe bundle after the bottom plate is consolidated to reach a certain compressive strength.
The invention is further configured to: before the bottom plate is poured, a plug is scattered in the water inlet pipe, the template of the bottom plate is removed, and then a filter is arranged in the water inlet pipe.
Through adopting above-mentioned technical scheme, before pouring the bottom plate, in the inlet tube scatter into the stopper and avoid the concrete to get into to the oral siphon, and then lead to the oral siphon to block up.
The invention is further configured to: after the steel tube bundle is welded with the supporting plate, a layer of asphalt waterproof layer is arranged on the outer side surface of the bearing wall formed by the steel tube bundle, then a layer of geotextile layer is arranged on the asphalt waterproof layer, and then the working surface is buried.
By adopting the technical scheme, after the basement is constructed, the working face can be buried, the soil layer can be directly contacted with the outer side face of the bearing wall after the working face is buried, and the soil layer can be possibly immersed in underground water; the asphalt waterproof layer plays a role in preventing underground water from penetrating through the bearing wall, and the geotextile plays a role in avoiding the collision and damage of the filled sandy soil gravel on the asphalt waterproof layer when the working face is filled.
In conclusion, the invention has the following beneficial effects:
1. when the accumulated water level in the working surface is discharged, the dead weight of the basement is increased, so that the anti-floating of the basement is realized, and when the construction of the basement is finished, if the underground water level is higher than the inlet of the water inlet pipe, the underground water level also enters the accommodating cavity and is pumped out by the water pump, so that the water level of the underground water is reduced, the bearing capacity of the foundation soil is enhanced, and finally the building is more difficult to settle;
2. the filter filters water entering the accommodating cavity, so that the water pump is not easily damaged when the water pump pumps accumulated water out of the accommodating cavity, and the service life of the water pump is prolonged;
3. the supporting plate is arranged, and after the steel pipe bundle is abutted to the supporting plate, the steel pipe bundle and the base are conveniently welded and fixed. Further, the support plate abuts against the upper surface of the bottom plate, so that the bottom plate can also bear the weight of the steel pipe bundle.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the connection structure between adjacent bases according to the present invention;
FIG. 4 is a schematic diagram of the connection principle of the water pump, the controller and the liquid level sensor according to the present invention.
Reference numerals: 1. a base plate; 2. a base; 3. steel tube bundle; 4. a receiving cylinder; 5. a partition plate; 6. an accommodating chamber; 7. an insertion hole; 8. a connecting pipe; 9. a drain pipe; 10. a water inlet pipe; 11. cushion blocks; 12. a water pump; 13. a liquid level sensor; 14. a controller; 15. a support plate; 16. a filter; 17. a filter cartridge; 18. filtering with a screen; 19. a filter element; 20. a screen frame; 21. a filter layer; 22. an asphalt waterproof layer; 23. a geotextile layer; 24. bending the pipe; 25. an extension hole; 26. an extension tube; 27. and an end plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1, the anti-floating structure of the basement comprises bases 2 pre-embedded in a bottom plate 1 of the basement, wherein the bases 2 are arranged along the edge of the bottom plate 1 and are independent from each other; the base 2 is provided with a steel pipe bundle 3, the upper end of the base 2 is inserted into the lower end of the steel pipe bundle 3 and fixed with each other, and the steel pipe bundle 3 is used as a bearing wall of the basement; and a drainage mechanism arranged in the steel pipe bundle 3 and the base 2.
As shown in fig. 3, the base 2 includes an end plate 27, a holding cylinder 4 fixed on the end plate 27, and a partition plate 5 welded and fixed in the holding cylinder 4, the holding cylinder 4 is vertically partitioned by the internal partition plate 5, a holding cavity 6 is formed between the partition plate 5 and the base 2, and an insertion hole 7 is formed in the partition plate 5. The containing cavities 6 in the adjacent bases 2 are communicated through connecting pipes 8, and a drain pipe 9 is arranged in one steel pipe bundle 3 of every several steel pipe bundles 3.
As shown in fig. 2 and 4, the drainage mechanism comprises an accommodating cavity 6 arranged in the base 2, and a water inlet pipe 10 inserted into the base 2 and communicated with the upper end of the accommodating cavity 6 is communicated with the side surface of the bottom plate 1; the drainage structure further comprises a drainage pipe 9 arranged in the steel pipe bundle 3, one end of the drainage pipe 9 extends into the accommodating cavity 6 from the insertion hole 7, a cushion block 11 is arranged at the bottom end of the accommodating cavity 6, the lower end edge of the drainage pipe 9 abuts against the cushion block 11, a certain gap is kept between the drainage pipe 9 and the bottom of the accommodating cavity 6, and the other end of the drainage pipe 9 penetrates through the space between two vertically adjacent steel pipe bundles 3 and is connected with a water pump 12; the upper end of the inner wall of the accommodating cavity 6 is provided with a liquid level sensor 13, a controller 14 which is coupled to the liquid level sensor 13 and controls the starting and the stopping of the water pump 12 according to a detection signal of the liquid level sensor 13 is arranged outside the accommodating cavity 6, and the controller 14 uses a PLC (programmable logic controller) 14. Specifically, the controller 14 may be disposed on the steel pipe bundle 3, and the electrical leads connecting the controller 14 and the level sensor 13 are routed from within the drain pipe 9 and then out of the drain pipe 9 to connect to the controller 14.
As shown in fig. 2, the base 2 further includes a support plate 15 fixed to an upper end of an outer surface of the receiving cylinder 4, an upper surface of the support plate 15 is fixedly welded to a lower end of the steel tube bundle 3, and the support plate 15 is in contact with and maintained flush with an upper surface of the base plate 1. Furthermore, both the base plate 1 and the support plate 15 can bear the weight of the steel pipe bundle 3, and damage to the steel pipe bundle 3 due to the bearing of the weight of the steel pipe bundle 3 by only the support plate 15 is avoided.
As shown in fig. 2, the drain pipe 9 is provided with a filter 16, the filter 16 includes a cylindrical filter cartridge 17, one end of the filter cartridge 17 is provided with a stainless steel filter screen 18, the other end is provided with a filter element 19, and a certain distance is maintained between the filter element 19 and the filter screen 18. And the filter element 19 comprises a frame 20 at both ends thereof, and a filter layer 21 between the two frames 20.
The filter 16 filters entering the accommodating cavity 6, so that the water pump 12 is not easily damaged when accumulated water in the accommodating cavity 6 is pumped out, and the service life of the water pump 12 is prolonged. A certain distance is kept between the filter element 19 and the filter screen 18 to serve as a buffer space for accumulated water to enter the filter 16, so that the accumulated water can enter the filter 16 more efficiently. In this embodiment, the filter layer 21 is filled with cotton wool and activated carbon, and the screen frame 20 is disposed at two ends of the filter layer 21 to prevent the filter material in the filter layer 21 from leaking out.
As shown in fig. 2, a layer of asphalt waterproof layer 22 is firstly attached to the outer side surface of the bearing wall formed by the steel tube bundle 3, a layer of geotextile 23 is attached to the asphalt waterproof layer 22, the waterproof layer is cleaned to play a role in waterproofing and preventing groundwater from penetrating through the bearing wall, and the geotextile plays a role in avoiding collision and damage of filled sandy soil gravel on the asphalt waterproof layer 22 when a working face is filled.
The implementation principle of the embodiment is as follows: before the basement is constructed, namely a certain working surface is left between the outer wall surface of the basement and the inner wall of the foundation pit, rainwater is easy to gather in the construction surface if the basement rains, and the working surface is narrow, so that the water level in the working surface is easy to rise rapidly, and the basement bears huge buoyancy;
when the water level of the accumulated water in the working surface is above, the accumulated water flows into the accommodating cavity 6 through the water inlet pipe 10, when the water level in the accommodating cavity 6 touches the liquid level sensor 13, the liquid level sensor 13 sends an electric signal to the PLC 14, the PLC 14 controls the water pump 12 to be started to pump the accumulated water in the accommodating cavity 6 out to a container in the basement for storage after receiving the electric signal, and therefore when the water level of the accumulated water in the working surface is reduced, the self weight of the basement is increased, and the anti-floating of the basement is achieved; and after the weather is improved, the collected water in the basement is treated. The filter 16 filters entering the accommodating cavity 6, so that the water pump 12 is not easily damaged when accumulated water in the accommodating cavity 6 is pumped out, and the service life of the water pump 12 is prolonged. The chamber 6 that holds in base 2 passes through connecting pipe 8 intercommunication, and then makes a water pump 12 can get rid of a plurality of ponding that hold in the chamber 6 promptly, improves water pump 12's utilization efficiency.
Since the drainage structures such as the drainage pipe 9 and the accommodating cavity 6 are always present in the steel pipe bundle 3 and the base 2, the drainage structure can be used in the whole life cycle of the building. Specifically, the basement construction is finished to behind the landfill working face, if the groundwater level is higher than the entry of oral siphon 10 equally can enter into to holding in the chamber 6 and be taken out by water pump 12, and then realized reducing the water level of groundwater, strengthen the bearing capacity of foundation soil, and finally make the building be difficult to subside more.
Example two:
a construction method of a basement anti-floating structure comprises the following construction steps:
the method comprises the following steps: connecting the adjacent accommodating cavities 6 in the base 2 by using connecting pipes 8, and arranging concrete cushion blocks between the base 2 and the cushion layer below the bottom plate 1; connecting the water inlet pipe 10 with the accommodating cavity 6, and then plugging a plug into the water inlet pipe 10;
step two: erecting the side mold of the bottom plate 1 and pouring to form the bottom plate 1;
step three: before the bottom plate 1 is not solidified, a support plate 15 is welded and fixed on the outer side of the upper end of the containing cylinder 4, and the upper end surface of the support plate 15 is kept flush with the upper end surface of the bottom plate 1;
step four: after the bottom plate 1 is solidified, removing the mould, extending the drain pipe 9 into the steel pipe bundle 3, presetting a lead in the drain pipe 9, then respectively connecting the drain pipe 9 and one end of the steel pipe bundle 3 by using ropes, and then hoisting the drain pipe 9 and the steel pipe bundle 3 by using the same hoisting equipment; in addition, the filter 16 is also plugged into the water inlet pipe 10;
Step five: after the drain pipe 9 and the upper end of the steel pipe bundle 3 are lifted, the drain pipe 9 extends out of the lower end of the steel pipe bundle 3, and a lead is connected with an electric lead connected with the liquid level sensor 14 and then is drawn out; then the drain pipe 9 is aligned and inserted into the accommodating cavity 6 from the insertion hole 7 to abut against the cushion block 11;
step six: after the drain pipe 9 is inserted into the accommodating cavity 6, a gap for personnel to enter is reserved between the steel pipe bundle 3 and the support plate 15, and then sealant is coated on the contact part of the drain pipe 9 and the insertion hole 7;
step seven: continuously placing the steel tube bundle 3 downwards by using a hoisting device, then enabling the lower end of the steel tube bundle 3 to surround the accommodating cylinder 4, enabling the lower end of the steel tube bundle 3 to abut against the support plate 15, and then welding the support plate 15 and the lower end of the steel tube bundle 3 together;
step eight: the upper end of the drain pipe 9 is connected with an elbow 24, an extension hole 25 allowing an extension pipe 26 to be inserted is reserved at the upper end of the steel pipe bundle 3, and the extension pipe 26 is inserted into the extension hole 25 and connected with the elbow 24;
step nine: pouring concrete into the steel pipe bundle 3, and lengthening the steel pipe bundle 3;
finally, after the steel pipe bundle 3 and the support plate 15 are welded, a layer of asphalt waterproof layer 22 is arranged on the outer side surface of the bearing wall formed by the steel pipe bundle 3, then a layer of geotextile layer 23 is paved on the asphalt waterproof layer 22, and then the working surface is buried. The anti-floating structure for the basement is manufactured by a stable and efficient construction method, and the anti-floating capacity of the basement is improved finally;
And a controller 13 is arranged on the inner side of the bearing wall and is electrically connected with the liquid level sensor.
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 (10)
1. The basement anti-floating structure comprises bases (2) pre-buried in a bottom plate (1) in a basement, wherein the bases (2) are arranged along the edge of the bottom plate (1) and are independent of each other; the basement is characterized in that the steel pipe bundle (3) is arranged on the base (2), the upper end of the base (2) is inserted into the lower end of the steel pipe bundle (3) and fixed with the steel pipe bundle, and the steel pipe bundle (3) is used as a bearing wall of the basement; a drainage mechanism is arranged in the steel pipe bundle (3) and the base (2), the drainage mechanism comprises an accommodating cavity (6) arranged in the base (2), and a water inlet pipe (10) which is inserted into the base (2) and communicated with the upper end of the accommodating cavity (6) is arranged on the side surface of the bottom plate (1); a drain pipe (9) is arranged in the steel pipe bundle (3), one end of the drain pipe (9) extends into the accommodating cavity (6), and the other end of the drain pipe penetrates through the steel pipe bundle (3) and is connected with a water pump (12); the upper end of the inner wall of the accommodating cavity (6) is provided with a liquid level sensor (13), a controller (14) which is coupled to the liquid level sensor (13) and controls the starting of the water pump (12) according to a detection signal of the liquid level sensor (13) is arranged outside the accommodating cavity (6), and the controller (14) uses a PLC (programmable logic controller) controller (14).
2. The anti-floating structure of basement according to claim 1, characterized in that: the base (2) comprises an end plate (27), a containing cylinder (4) fixed on the end plate (27) and a partition plate (5) arranged in the containing cylinder (4), the containing cylinder (4) is vertically partitioned by the partition plate (5), a containing cavity (6) is formed between the partition plate (5) and the base (2), an insertion hole (7) is formed in the partition plate (5), and the drain pipe (9) is inserted into the containing cavity (6) from the insertion hole (7); the base (2) further comprises a supporting plate (15) fixed to the upper end of the outer surface of the containing cylinder (4), the upper surface of the supporting plate (15) is fixedly connected with the lower end of the steel pipe bundle (3), and the supporting plate (15) is in contact with the upper surface of the bottom plate (1).
3. The anti-floating structure of basement according to claim 2, characterized in that: be provided with filter (16) in drain pipe (9), filter (16) are including cartridge filter (17) of tube-shape, one end in cartridge filter (17) is provided with filter screen (18), and the other end is provided with filter core (19), keep certain distance between filter core (19) and filter screen (18).
4. The anti-floating structure of the basement as claimed in claim 3, wherein: the filter element (19) comprises net frames (20) at two ends of the filter element, and a filter layer (21) positioned between the two net frames (20).
5. The anti-floating structure of basement according to claim 4, wherein: the base (2) comprises a cushion block (11) arranged at the bottom end of the accommodating cavity (6), and the lower end edge of the drain pipe (9) abuts against the cushion block (11).
6. The anti-floating structure of basement according to claim 1, characterized in that: the containing cavities (6) in the adjacent bases (2) are communicated through connecting pipes (8), a drain pipe (9) is arranged in one steel pipe bundle (3) of every several steel pipe bundles (3), and the drain pipe (9) penetrates out of the steel pipe bundle (3) at the splicing position of the upper adjacent steel pipe bundle (3) and the lower adjacent steel pipe bundle (3).
7. The construction method of the anti-floating structure of the basement according to any one of claims 1 to 6, which is characterized in that: the method comprises the following construction steps:
the method comprises the following steps: connecting the accommodating cavities (6) in the adjacent bases (2) by using connecting pipes (8); and connecting the water inlet pipe (10) with the accommodating cavity (6);
step two: erecting a formwork and pouring to form a bottom plate (1);
step three: before the bottom plate (1) is not solidified, a support plate (15) is welded and fixed on the outer side of the upper end of the containing cylinder (4), and the upper end face of the support plate (15) is kept flush with the upper end face of the bottom plate (1);
step four: the drain pipe (9) extends into the steel pipe bundle (3), then the drain pipe (9) and one end of the steel pipe bundle (3) are connected through ropes respectively, and then the drain pipe (9) and the steel pipe bundle (3) are hoisted through the same hoisting equipment;
Step five: after the drain pipe (9) and the upper end of the steel pipe bundle (3) are lifted, the drain pipe (9) extends out of the lower end of the steel pipe bundle (3), and then the drain pipe (9) is aligned and inserted into the accommodating cavity (6) from the insertion hole (7) to be abutted against the cushion block (11);
step six: after the drain pipe (9) is inserted into the accommodating cavity (6), a gap for personnel to enter is reserved between the steel pipe bundle (3) and the support plate (15), and then sealant is brushed on the contact part of the drain pipe (9) and the insertion hole (7);
step seven: continuously placing the steel pipe bundle (3) downwards by using a hoisting device, then enabling the lower end of the steel pipe bundle (3) to surround the accommodating cylinder (4), enabling the lower end of the steel pipe bundle (3) to abut against the support plate (15), and then welding the support plate (15) and the lower end of the steel pipe bundle (3) together;
step eight: the upper end of the drain pipe (9) is connected with an elbow (24), an extension hole (25) allowing an extension pipe (26) to be inserted is reserved at the upper end of the steel pipe bundle (3), and the extension pipe (26) is inserted into the extension hole (25) and connected with the elbow (24);
step nine: concrete is poured into the steel pipe bundle (3), and the steel pipe bundle (3) is lengthened.
8. The anti-floating structure of basement and construction method thereof as claimed in claim 7, wherein: and step four, after the bottom plate (1) is solidified.
9. The anti-floating structure of basement and construction method thereof as claimed in claim 7, wherein: before the bottom plate (1) is poured, plugs are scattered in the water inlet pipe, the template of the bottom plate (1) is removed, and then a filter (16) is arranged in the water inlet pipe.
10. The anti-floating structure of basement and construction method thereof as claimed in claim 7, wherein: after the steel pipe bundle (3) is welded with the support plate (15), a layer of asphalt waterproof layer (22) is arranged on the outer side surface of the bearing wall formed by the steel pipe bundle (3), then a layer of geotextile layer (23) is arranged on the asphalt waterproof layer (22), and then the working surface is buried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430474.2A CN111980075A (en) | 2019-05-22 | 2019-05-22 | Basement anti-floating structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430474.2A CN111980075A (en) | 2019-05-22 | 2019-05-22 | Basement anti-floating structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111980075A true CN111980075A (en) | 2020-11-24 |
Family
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| CN101413273A (en) * | 2008-12-11 | 2009-04-22 | 贵阳铝镁设计研究院 | Method for eliminating pit buoyancy and pit structure |
| KR20100123237A (en) * | 2009-05-15 | 2010-11-24 | 홍종인 | Under ground water drainage apparatus |
| CN101936010A (en) * | 2010-08-19 | 2011-01-05 | 天津二十冶建设有限公司 | Construction method of dewatering well in underground concrete structure |
| CN106351324A (en) * | 2016-10-20 | 2017-01-25 | 安徽天枢信息科技有限公司 | Automatic drainage system for civil air-defense project |
| CN208009497U (en) * | 2018-01-24 | 2018-10-26 | 成都佰人佰思科技有限公司 | A kind of anti-floating power ground |
| CN208266937U (en) * | 2018-05-11 | 2018-12-21 | 深圳市佰邦建筑设计顾问有限公司 | A kind of basement anti-floating system |
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- 2019-05-22 CN CN201910430474.2A patent/CN111980075A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413273A (en) * | 2008-12-11 | 2009-04-22 | 贵阳铝镁设计研究院 | Method for eliminating pit buoyancy and pit structure |
| KR20100123237A (en) * | 2009-05-15 | 2010-11-24 | 홍종인 | Under ground water drainage apparatus |
| CN101936010A (en) * | 2010-08-19 | 2011-01-05 | 天津二十冶建设有限公司 | Construction method of dewatering well in underground concrete structure |
| CN106351324A (en) * | 2016-10-20 | 2017-01-25 | 安徽天枢信息科技有限公司 | Automatic drainage system for civil air-defense project |
| CN208009497U (en) * | 2018-01-24 | 2018-10-26 | 成都佰人佰思科技有限公司 | A kind of anti-floating power ground |
| CN208266937U (en) * | 2018-05-11 | 2018-12-21 | 深圳市佰邦建筑设计顾问有限公司 | A kind of basement anti-floating system |
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