Anti-floating structure of building

Abstract

The utility model discloses a building anti-floating structure which is used for anti-floating of an underground building, the underground building comprises a side wall plate and a bottom plate, a drainage channel is arranged on the bottom surface of the bottom plate, a drainage pipe extending to a water seepage layer below the underground building is arranged in the drainage channel, and a pressure release valve is arranged at the top end of the drainage pipe; a water suction pump and a water level detector are further arranged in the drainage tank, and the water suction pump is connected with a drainage pipe extending to the outer side of the underground building; and the water suction pump and the water level detector are in circuit connection with a controller arranged in the underground building. The basement anti-floating structure is simple in structure, high in construction convenience, low in construction cost, good in anti-floating performance, particularly suitable for a basement located in a weak permeable soil layer foundation pit, capable of guiding and draining accumulated water below the basement in time, capable of avoiding the hidden danger that the basement floats upwards and is damaged, and good in economic practicability.

Description

Technical Field

[0001] The utility model relates to an anti-floating structure for a building, belonging to the technical field of anti-floating engineering for buildings. Background Art

[0002] During the construction process, underground buildings will be affected by the buoyancy of groundwater. When the buoyancy of groundwater is greater than the weight of the building, if no anti-floating measures are taken, the bottom plate of the building will float and be damaged. In severe cases, it will even float as a whole under the action of water pressure, causing damage to the overall structure, collapse, and dumping, endangering the safety of life and property. At present, the anti-floating methods used in underground buildings include anchor anti-floating and engineering pile anti-floating. The use of anti-floating piles for anti-floating requires a large number of anti-floating piles, and the construction cost and time investment are large. In addition, the use of anti-floating piles has limitations. For example, in a basement located in a foundation pit of a soft and permeable soil layer, since the foundation pit is located in a soft and water-rich stratum underground, the anti-floating performance of the anti-floating piles is poor after being inserted into the soft stratum. When encountering heavy rainfall, the underground building still has the risk of floating damage. Therefore, designing an anti-floating structure for buildings based on soft strata is a technical problem that needs to be solved urgently. Utility Model Content

[0003] In view of this, an object of the present invention is to provide an anti-floating structure for a building, so as to at least solve the problems mentioned in the background technology.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A building anti-floating structure is used for anti-floating of underground buildings. The underground building comprises a side wall plate and a bottom plate. A drainage ditch is arranged on the bottom surface of the bottom plate. A drainage pipe extending to the seepage layer below the underground building is arranged in the drainage ditch. A pressure relief valve is arranged on the top of the drainage pipe. A water pump and a water level detector are also arranged in the drainage ditch. The water pump is connected to the drainage pipe extending to the outside of the underground building. The water pump and the water level detector are connected to a controller circuit arranged in the underground building.

[0006] Furthermore, a trapezoidal water filtration structure which is wide at the top and narrow at the bottom is provided on the outside of the underground building. The trapezoidal water filtration structure includes, from top to bottom, a concrete layer arranged on the outside of the side wall panel, a permeable layer arranged on the outside of the drainage ditch, and a water filtration layer arranged on the lower side of the drainage ditch, and the water filtration layer is arranged as a downwardly inclined sinking trough structure.

[0007] Furthermore, the water filter layer is permeable concrete or silica sand water filter brick.

[0008] Furthermore, the water filtration layer is a gravel layer.

[0009] Furthermore, a waterproof layer is provided on the outer surface of the underground building and the drainage ditch.

[0010] Furthermore, the water level detector is an ultrasonic water level detector or a float type water level sensor.

[0011] Furthermore, a filter screen structure is provided at the water inlet end of the water pump.

[0012] Furthermore, the drainage pipe includes an outer pipe fixedly connected to the sinking trough structure, and an inner pipe sleeved in the outer pipe. A filter section is provided at the lower end of the outer pipe, a pressure relief valve is provided at the top of the inner pipe, a plurality of drainage holes are provided at the lower end, a sealing sleeve is provided in the middle section, and the inner pipe is sleeved in the outer pipe and sealed by the sealing sleeve.

[0013] Furthermore, an inspection door is provided on the top of the drainage trough.

[0014] Furthermore, anti-floating piles are arranged around the drainage trough.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model has the advantages of simple structure, high construction convenience, low construction cost and good anti-floating performance, and is particularly suitable for basements located in foundation pits of soft and permeable soil layers. The accumulated water under the basement can be drained out in time to avoid the hidden danger of floating damage to the basement, and has good economic and practicality.

[0017] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of the structure of an anti-floating structure of a building provided by an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the drainage pipe.

[0021] In the figure: 1. side wall panel; 2. bottom plate; 3. drainage trough; 4. drainage pipe; 401. outer pipe 401; 402. inner pipe; 403. sealing sleeve; 5. pressure relief valve; 6. water pump; 7. water level detector; 8. drainage pipe; 9. controller; 10. concrete layer; 11. permeable layer; 12. water filtration layer; 13. waterproof layer; 14. inspection door; 15. anti-floating piles; 16. filter mesh structure. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 2 As shown, the first embodiment of the utility model provides a building anti-floating structure, which is used for anti-floating of underground buildings. The underground building includes a side wall plate 1 and a bottom plate 2. A drainage groove 3 is provided on the bottom surface of the bottom plate 2. A drainage pipe 4 extending to the seepage layer below the underground building is provided in the drainage groove 3. A pressure relief valve 5 is provided on the top of the drainage pipe 4; a water pump 6 and a water level detector 7 are also provided in the drainage groove 3, and the water pump 6 is connected to a drainage pipe 8 extending to the outside of the underground building; and the water pump 6 and the water level detector 7 are circuit-connected to a controller 9 arranged in the underground building.

[0024] A trapezoidal water filtration structure that is wide at the top and narrow at the bottom is provided on the outside of the underground building. The trapezoidal water filtration structure includes, from top to bottom, a concrete layer 10 arranged on the outside of the side wall panel 1, a permeable layer 11 arranged on the outside of the drainage trough 3, and a water filtration layer 12 arranged on the lower side of the drainage trough 3. The water filtration layer 12 is arranged as a downwardly inclined sinking trough structure, and the lower end of the drainage pipe 4 is arranged in the sinking trough structure, which is more convenient for collecting the accumulated water in the seepage layer below the underground building in the sinking trough structure. When the accumulated water pressure in the sinking trough structure reaches the drainage pressure of the pressure relief valve 5, the pressure relief valve 5 opens, and the accumulated water is discharged from the drainage pipe 4 into the drainage trough 3. The permeable layer 11 is permeable concrete or silica sand water filtration brick. The water filtration layer 12 is a gravel layer.

[0025] A waterproof layer 13 is provided on the outer surface of the underground building and the drainage ditch 3 to better protect the structure of the underground building.

[0026] The water level detector 7 is an ultrasonic water level detector or a floating ball water level sensor. When the water level detector 7 detects that there is a certain amount of water in the drainage trough 3, it sends a detection signal to the controller 9, and the controller 9 controls the pump 6 to pump the water in the drainage trough 3 out of the underground building, thereby achieving pressure relief and drainage of the seepage layer under the underground building.

[0027] A filter screen structure 16 is provided at the water inlet end of the water pump 6 to prevent pipe blockage.

[0028] The drainage pipe 4 includes an outer pipe 401 fixedly connected to the sinking tank structure, and an inner pipe 402 sleeved in the outer pipe 401. A filter screen section is provided at the lower end of the outer pipe 401, a pressure relief valve 5 is provided at the top of the inner pipe 402, a plurality of drainage holes are provided at the lower end of the inner pipe 402, a sealing sleeve 403 is provided in the middle section of the inner pipe 402, and the inner pipe 402 is sleeved in the outer pipe 401 and sealed by the sealing sleeve 403. The filter screen section is provided at the lower end of the outer pipe 401, which can isolate large particles of impurities on the side of the outer pipe 401, and only the accumulated water enters the inner pipe 402, and then enters the drainage tank 3 from the drainage holes of the inner pipe 402, which can prevent pipe blockage to a great extent. When blockage occurs in the drainage pipe 4, the inner pipe 402 can be pulled out, which is more convenient for cleaning and maintenance.

[0029] An inspection door 14 is provided at the top of the drainage trough 3 , and a worker can enter the drainage trough 3 through the inspection door 14 to inspect relevant components or desilt the drainage trough 3 .

[0030] Anti-floating piles 15 are arranged around the drainage trough 3, which can not only improve the anti-floating ability of the underground building, but also improve the stability of the drainage trough 3. Specifically, at least four anti-floating piles 15 are arranged at the four corners of the drainage trough 3, and their bottom ends extend into the soil layer below the underground building. The anti-floating piles 15 are pile foundation grouting pipes.

[0031] The specific construction process and working principle are as follows:

[0032] (1) Excavating the foundation of the underground building and forming a pile hole by mechanical excavation or manual excavation, hoisting the anti-floating pile 15 into the pile hole and injecting grout to stabilize the surrounding base;

[0033] (2) Constructing a trapezoidal water filtration structure outside the underground building: constructing the water filtration layer 12, the permeable layer 11 and the concrete layer 10 from bottom to top, and pre-burying the drainage pipe 8;

[0034] (3) Construction of underground buildings and pre-burying of drainage pipes 8;

[0035] (4) A drainage ditch 3 is excavated on the bottom plate 2 of the underground building; at least one drainage pipe 4 is installed in the drainage ditch 3, and a pressure relief valve 5, a water pump 6, a water level detector 7 and a controller 9 are installed. The specific size of the drainage ditch 3 is designed according to the size of the underground building.

[0036] When there is serious water accumulation in the seepage layer below the underground building, the accumulated water will pass through the permeable layer 11 and mainly into the water filtration layer 12. When the water pressure of the accumulated water exceeds the pressure of the pressure relief valve, the accumulated water will enter the drainage trough 3 along the drainage pipe 4. After the water level detector 7 detects that there is water in the drainage trough 3, it will send a signal to the controller 9 to control the water pump 6 to pump the accumulated water out of the drainage trough 3, thereby realizing the anti-floating function of the underground building.

[0037] The above is only a preferred embodiment of the utility model, and does not limit the confidentiality of the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A building anti-floating structure, which is used for anti-floating of underground buildings, the underground building comprising a side wall plate (1) and a bottom plate (2), characterized in that: A drainage ditch (3) is provided on the bottom surface of the base plate (2), a drainage pipe (4) extending to the seepage layer below the underground building is provided in the drainage ditch (3), and a pressure relief valve (5) is provided at the top of the drainage pipe (4); a water pump (6) and a water level detector (7) are also provided in the drainage ditch (3), the water pump (6) is connected to a drainage pipe (8) extending to the outside of the underground building; and the water pump (6) and the water level detector (7) are connected to a controller (9) provided in the underground building.

2. The anti-floating structure of a building according to claim 1, characterized in that: A trapezoidal water filtration structure which is wide at the top and narrow at the bottom is provided on the outside of the underground building. The trapezoidal water filtration structure comprises, from top to bottom, a concrete layer (10) arranged on the outside of the side wall plate (1), a permeable layer (11) arranged on the outside of the drainage trough (3), and a water filtration layer (12) arranged on the lower side of the drainage trough (3), and the water filtration layer (12) is arranged in a downwardly inclined sinking trough structure.

3. The anti-floating structure of a building according to claim 2, characterized in that: The water filter layer (12) is permeable concrete or silica sand water filter brick.

4. The anti-floating structure of a building according to claim 3, characterized in that: The water filtration layer (12) is a gravel layer.

5. The anti-floating structure of a building according to claim 1, characterized in that: A waterproof layer (13) is provided on the outer surface of the underground building and the drainage ditch (3).

6. The anti-floating structure of a building according to claim 1, characterized in that: The water level detector (7) is an ultrasonic water level detector or a float type water level sensor.

7. The anti-floating structure of a building according to claim 1, characterized in that: A filter screen structure (16) is provided at the water inlet end of the water pump (6).

8. The anti-floating structure of a building according to claim 1, characterized in that: The drainage pipe (4) comprises an outer pipe (401) fixedly connected to the sinking tank structure, and an inner pipe (402) sleeved inside the outer pipe (401); a filter screen section is provided at the lower end of the outer pipe (401); a pressure relief valve (5) is provided at the top of the inner pipe (402); a plurality of drainage holes are provided at the lower end; a sealing sleeve (403) is provided in the middle section; and the inner pipe (402) is sleeved inside the outer pipe (401) and sealed by the sealing sleeve (403).

9. The anti-floating structure of a building according to claim 8, characterized in that: An inspection door (14) is provided at the top of the drainage trough (3).

10. The anti-floating structure of a building according to any one of claims 1 to 9, characterized in that: Anti-floating piles (15) are also provided around the drainage trough (3).

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