Soft soil foundation reinforcement treatment device

Abstract

The invention relates to a soft soil foundation reinforcement treatment device applied to the field of constructional engineering construction, during vacuum preloading, water in a water pumping belt enters a rear water-gas separation tank through a connecting box, a transverse connecting pipe, a transverse water-gas separation tank and a transverse pipe header to be subjected to water-gas separation, and the water in the water-gas separation tank is discharged outwards; when a certain part of the sealing film is damaged, air can enter the interior of the transverse connecting pipe at the corresponding position through the damaged position of the sealing film, meanwhile, correspondingly, gas in the transverse water-gas separation tank is increased, the water level is lowered, and water level data in the transverse water-gas separation tank is obtained through a transverse water level sensor; according to data of the water levels in the multiple transversely-arranged water-gas separation tanks, the situation that the sealing film at the position of a certain line of water pumping belts is damaged is judged, the damaged position of the sealing film can be positioned, the convenience of checking the damaged position of the sealing film is improved, the timeliness of sealing film maintenance is improved, and the stability of foundation drainage is improved.

Description

Technical Field

[0001] The invention relates to a soft soil foundation reinforcement processing device, in particular to a soft soil foundation reinforcement processing device applied in the field of building engineering construction. Background Art

[0002] Soft soil foundation refers to a foundation mainly formed by silt, silty soil, miscellaneous fill, backfill or other highly compressible soil layers. These soil layers have the characteristics of low strength, high compressibility, high water content and poor permeability. Soft soil foundation is prone to large settlement deformation under load, especially uneven settlement, which can cause the building to crack, tilt or even collapse. Therefore, the foundation needs to be reinforced before construction.

[0003] The vacuum preloading method is to set up a drainage pipe in the soft soil foundation that needs to be reinforced, and then lay an airtight sealing membrane on the ground to isolate it from the atmosphere. The vacuum device is connected to the drainage pipe to evacuate the air and water in the membrane. During the construction process, special attention should be paid to the integrity of the sealing membrane. Once the sealing membrane is damaged at a certain location, the vacuum degree of the foundation at the corresponding position will be insufficient, resulting in uneven sinking. The existing vacuum preloading device does not have the function of locating the damaged position of the sealing membrane, and mainly relies on manual inspection. Manual inspection is inefficient and prone to missed inspections, so it needs further improvement. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that once a sealing film is damaged at a certain location, the vacuum degree of the foundation at the corresponding location will be insufficient, resulting in uneven sinking. The existing vacuum preloading device does not have the function of locating the damaged location of the sealing film.

[0005] To solve the above problems, the present invention provides a soft soil foundation reinforcement and treatment device, comprising a plurality of pumping belts buried in the foundation, the plurality of pumping belts are distributed in a rectangular array, and also comprising a plurality of connecting boxes, the plurality of connecting boxes corresponding to the plurality of pumping belts one by one, the bottom end of the connecting box is fixedly connected with a lower connecting pipe, the bottom end of the lower connecting pipe is fixedly connected with the top end of the pumping belt, a horizontal connecting pipe is connected between two adjacent connecting boxes in each row, a plurality of evenly distributed horizontal air holes are opened on the surface of the horizontal connecting pipe, a horizontal pipe main row is laid on the leftmost side of the foundation, a horizontal water-gas separation tank is connected between the horizontal pipe main row and the plurality of rows of connecting boxes, a horizontal water level sensor is installed inside the horizontal water-gas separation tank, a rear water-gas separation tank and a vacuum pump are arranged at the top end of the horizontal pipe main row, the top end of the horizontal pipe main row is fixedly connected with one end of the rear water-gas separation tank, one end of the rear water-gas separation tank is fixedly connected with one end of the vacuum pump, and also comprising a sealing film laid on the foundation, and the sealing film covers the upper side of the pumping belt.

[0006] As a further improvement of the present application, each row of adjacent connection boxes is connected by a vertical connecting pipe, and vertical air holes are provided on the surface of the vertical connecting pipe.

[0007] As a further improvement of the present application, a main row of longitudinal pipes is laid on the uppermost side of the foundation, and a longitudinal water-gas separation tank is connected between the main row of longitudinal pipes and multiple rows of connection boxes, and a longitudinal water level sensor is fixedly connected to the interior of the longitudinal water-gas separation tank.

[0008] As a further improvement of the present application, one end of the longitudinal pipe main row is fixedly connected to one end of the rear water-gas separation tank, and one end of the transverse pipe main row close to the rear water-gas separation tank and one end of the longitudinal pipe main row close to the rear water-gas separation tank are respectively fixedly connected with a first control valve and a second control valve.

[0009] As another improvement of the present application, the inner wall at the top of the connection box is fixedly connected to an upper base plate, the bottom end of the upper base plate is slidably connected to a lower base plate, and the bottom end of the lower base plate is slidably connected to a gravity net.

[0010] As another improved supplement of the present application, a tension rope is fixedly connected between one end of the upper base plate and one end of the lower base plate, and between one end of the lower base plate and one end of the gravity net.

[0011] As another improved supplement of the present application, the upper side and the left side of the connection box are respectively fixedly connected with an upper suction head and a side suction head, the lower side and the right side of the connection box are both fixedly connected with a connecting head, and the horizontal connecting pipe and the vertical connecting pipe are respectively connected to the corresponding upper suction head, side suction head and connecting head.

[0012] As another improvement of the present application, one end of the gravity net close to the side suction head and the end of the gravity net close to the upper suction head are respectively fixedly connected with a vertical blocking plate and a horizontal blocking plate. Through the above-mentioned arrangement, combined with the horizontal position of the damaged sealing film, the damaged position of the sealing film can be accurately located, further reducing the time for checking the damage of the sealing film.

[0013] To sum up, during vacuum preloading, the water inside the pumping belt enters the rear water-gas separation tank through the connecting box, the transverse connecting pipe, the transverse water-gas separation tank, and the transverse pipe total discharge for water-gas separation, and the water inside the water-gas separation tank is discharged outward. When a part of the sealing membrane is damaged, the air will enter the interior of the transverse connecting pipe at the corresponding position through the damaged position of the sealing membrane. At the same time, the gas inside the corresponding transverse water-gas separation tank increases and the water level drops. The water level data in the transverse water-gas separation tank is obtained through the transverse water level sensor, and based on the water level data in multiple transverse water-gas separation tanks, it is judged that the sealing membrane at a certain row of pumping belts is damaged, and the damaged position of the sealing membrane can be located, which improves the convenience of checking the damaged position of the sealing membrane, increases the timeliness of sealing membrane maintenance, and improves the stability of foundation drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the overall structure of the first and second embodiments of the present application;

[0015] Figure 2 It is a top cross-sectional view of the connection box in the first and second embodiments of the present application;

[0016] Figure 3 This is a state diagram of the gravity net moving toward the side suction head in the second embodiment of the present application;

[0017] Figure 4 This is a state diagram of the gravity net moving upward to the suction head in the second embodiment of the present application;

[0018] Figure 5 In the second embodiment of this application Figure 2 The cross-sectional structure diagram at 1-1 in the middle;

[0019] Figure 6 In the second embodiment of this application Figure 2 Cross-sectional structure diagram at 2-2 in the middle.

[0020] Description of the numbers in the figure:

[0021] 1. Pumping belt; 2. Connecting box; 3. Lower connecting pipe; 4. Horizontal connecting pipe; 401. Horizontal air vent; 5. Horizontal pipe main row; 501. First control valve; 6. Horizontal water-gas separation tank; 7. Horizontal water level sensor; 8. Rear water-gas separation tank; 9. Sealing membrane; 10. Vacuum pump; 11. Vertical connecting pipe; 1101. Vertical air vent; 12. Vertical pipe main row; 1201. Second control valve; 13. Vertical water-gas separation tank; 14. Vertical water level sensor; 15. Upper base plate; 16. Lower base plate; 17. Gravity net; 18. Pull rope; 19. Upper suction head; 20. Side suction head; 21. Connecting head; 22. Vertical blocking plate; 23. Horizontal blocking plate. DETAILED DESCRIPTION

[0022] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0023] The first implementation method:

[0024] Figure 1-2The diagram shows a plurality of pumping belts 1 buried in the foundation, the plurality of pumping belts 1 are distributed in a rectangular array, and a plurality of connection boxes 2, the plurality of connection boxes 2 correspond to the plurality of pumping belts 1 one by one, the bottom end of the connection box 2 is fixedly connected with a lower pipe 3, the bottom end of the lower pipe 3 is fixedly connected with the top of the pumping belt 1, and a horizontal connecting pipe 4 is connected between two adjacent connection boxes 2 in each row, and a plurality of evenly distributed horizontal air holes 401 are opened on the surface of the horizontal connecting pipe 4, and a horizontal pipe row 5 is laid on the leftmost side of the foundation. A horizontal water-gas separation tank 6 is connected between the horizontal pipe main row 5 and the multi-row connection boxes 2. A horizontal water level sensor 7 is installed inside the horizontal water-gas separation tank 6. A rear water-gas separation tank 8 and a vacuum pump 10 are arranged at the top of the horizontal pipe main row 5. The top of the horizontal pipe main row 5 is fixedly connected to one end of the rear water-gas separation tank 8, and one end of the rear water-gas separation tank 8 is fixedly connected to one end of the vacuum pump 10. It also includes a sealing film 9 laid on the foundation, and the sealing film 9 covers the upper side of the pumping belt 1.

[0025] During vacuum pre-compression, the vacuum pump 10 is started to extract the air in the pumping belt 1, so that the inside of the pumping belt 1 is in a negative pressure state. At this time, the water inside the foundation enters the inside of the pumping belt 1, and enters the inside of the rear water-gas separation tank 8 through the connecting box 2, the transverse connecting pipe 4, the transverse water-gas separation tank 6, and the transverse pipe total discharge 5 for water-gas separation, and the water inside the water-gas separation tank 8 is discharged outward. When a part of the sealing membrane 9 is damaged, the air will enter the inside of the transverse connecting pipe 4 at the corresponding position through the damaged position of the sealing membrane 9. At the same time, the gas inside the corresponding transverse water-gas separation tank 6 increases and the water level drops. The water level data in the transverse water-gas separation tank 6 is obtained through the transverse water level sensor 7, and based on the water level data in multiple transverse water-gas separation tanks 6, it is judged that the sealing membrane 9 at the position of a certain row of the pumping belt 1 is damaged, and the damaged position of the sealing membrane 9 can be located, which improves the convenience of checking the damaged position of the sealing membrane 9 and increases the timeliness of the maintenance of the sealing membrane 9.

[0026] The second implementation method:

[0027] Figure 1-6A soft soil foundation reinforcement treatment device is shown. Different from the first embodiment, each row of adjacent connection boxes 2 is connected with a vertical connecting pipe 11, and a vertical air vent 1101 is opened on the surface of the vertical connecting pipe 11. A longitudinal pipe main row 12 is laid on the uppermost side of the foundation. A longitudinal water-gas separation tank 13 is connected between the longitudinal pipe main row 12 and multiple rows of connection boxes 2. A longitudinal water-gas separation tank 13 is fixedly connected to the interior of the longitudinal water-gas separation tank 13. One end of the longitudinal pipe main row 12 is fixedly connected to one end of the rear water-gas separation tank 8. One end of the horizontal pipe main row 5 close to the rear water-gas separation tank 8 and one end of the longitudinal pipe main row 12 close to the rear water-gas separation tank 8 are respectively fixedly connected with a first control valve 501 and a second control valve 1201. The inner wall of the top of the connection box 2 An upper base plate 15 is fixedly connected, and a lower base plate 16 is slidably connected to the bottom end of the upper base plate 15, and a gravity net 17 is slidably connected to the bottom end of the lower base plate 16. A tension rope 18 is fixedly connected between one end of the upper base plate 15 and one end of the lower base plate 16, and between one end of the lower base plate 16 and one end of the gravity net 17. An upper suction head 19 and a side suction head 20 are fixedly connected to the upper side and the left side of the connecting box 2, respectively, and a connecting head 21 is fixedly connected to the lower side and the right side of the connecting box 2. The horizontal connecting pipe 4 and the vertical connecting pipe 11 are respectively connected to the corresponding upper suction head 19, side suction head 20 and connecting head 21. One end of the gravity net 17 close to the side suction head 20 and one end of the gravity net 17 close to the upper suction head 19 are fixedly connected with a vertical blocking plate 22 and a horizontal blocking plate 23.

[0028] When the second control valve 1201 is closed and the first control valve 501 is opened, the water inside the pumping belt 1 is extracted through the horizontal pipe main row 5 and the horizontal connecting pipe 4. At this time, the gravity net 17 moves toward the side suction head 20 under the action of suction, and the horizontal blocking plate 23 blocks the upper suction head 19. The water flows along the horizontal connecting pipe 4 to the horizontal pipe main row 5 and the vertical connecting pipe 11 is closed. When the sealing membrane 9 at a row of the pumping belt 1 is damaged and the horizontal position of the damaged position is determined, the second control valve 1201 Open and the first control valve 501 is closed. Similarly, the gravity net 17 moves in the direction of the upward suction head 19, the vertical blocking plate 22 blocks the side suction head 20, and the water flows along the vertical connecting pipe 11 and the longitudinal pipe main row 12, and the horizontal connecting pipe 4 is closed. The vertical position of the damaged sealing membrane 9 can be determined based on the corresponding vertical water level sensor 14. Combined with the horizontal position of the damaged sealing membrane 9, the damaged position of the sealing membrane 9 can be accurately located, further reducing the damage inspection time of the sealing membrane 9.

[0029] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A soft soil foundation reinforcement treatment device, comprising a plurality of pumping belts (1) buried in the foundation, wherein the plurality of pumping belts (1) are distributed in a rectangular array, and characterized in that: It also includes a plurality of connection boxes (2), wherein the plurality of connection boxes (2) correspond to the plurality of pumping belts (1) one by one, the bottom end of the connection box (2) is fixedly connected to a lower connecting pipe (3), the bottom end of the lower connecting pipe (3) is fixedly connected to the top end of the pumping belt (1), and a transverse connecting pipe (4) is connected between two adjacent connection boxes (2) in each row, and a plurality of evenly distributed transverse air holes (401) are provided on the surface of the transverse connecting pipe (4), and a transverse pipe main row (5) is laid on the leftmost side of the foundation, and the transverse pipe main row (5) is connected to the plurality of rows of connection boxes ( 2) are both connected with a horizontal water-gas separation tank (6), a horizontal water level sensor (7) is installed inside the horizontal water-gas separation tank (6), a rear water-gas separation tank (8) and a vacuum pump (10) are arranged at the top of the horizontal pipe main row (5), and the top of the horizontal pipe main row (5) is fixedly connected to one end of the rear water-gas separation tank (8), one end of the rear water-gas separation tank (8) and one end of the vacuum pump (10) are fixedly connected, and also includes a sealing film (9) laid on the foundation, and the sealing film (9) covers the upper side of the pumping belt (1).

2. The soft soil foundation reinforcement device according to claim 1, characterized in that: Each row of adjacent connection boxes (2) is connected by a vertical connection pipe (11), and the surface of the vertical connection pipe (11) is provided with vertical air holes (1101).

3. The soft soil foundation reinforcement device according to claim 1, characterized in that: A longitudinal pipe main row (12) is laid on the uppermost side of the foundation, and a longitudinal water-gas separation tank (13) is connected between the longitudinal pipe main row (12) and the multi-row connection boxes (2), and a longitudinal water level sensor (14) is fixedly connected inside the longitudinal water-gas separation tank (13).

4. The soft soil foundation reinforcement device according to claim 3, characterized in that: One end of the longitudinal pipe main row (12) is fixedly connected to one end of the rear water-gas separation tank (8), and one end of the transverse pipe main row (5) close to the rear water-gas separation tank (8) and one end of the longitudinal pipe main row (12) close to the rear water-gas separation tank (8) are respectively fixedly connected to a first control valve (501) and a second control valve (1201).

5. The soft soil foundation reinforcement device according to claim 4, characterized in that: An upper base plate (15) is fixedly connected to the inner wall of the top of the connection box (2), a lower base plate (16) is slidably connected to the bottom of the upper base plate (15), and a gravitational net (17) is slidably connected to the bottom of the lower base plate (16).

6. The soft soil foundation reinforcement device according to claim 5, characterized in that: A tension rope (18) is fixedly connected between one end of the upper base plate (15) and one end of the lower base plate (16), and between one end of the lower base plate (16) and one end of the gravity net (17).

7. The soft soil foundation reinforcement device according to claim 6, characterized in that: The upper side and the left side of the connection box (2) are respectively fixedly connected with an upper suction head (19) and a side suction head (20), the lower side and the right side of the connection box (2) are both fixedly connected with a connection head (21), and the horizontal connecting pipe (4) and the vertical connecting pipe (11) are respectively connected with the corresponding upper suction head (19), the side suction head (20) and the connection head (21).

8. The soft soil foundation reinforcement device according to claim 7, characterized in that: One end of the gravitational net (17) close to the side suction head (20) and one end of the gravitational net (17) close to the upper suction head (19) are respectively fixedly connected with a vertical blocking plate (22) and a horizontal blocking plate (23).

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