Soft soil foundation treatment device

Abstract

The utility model provides a soft soil foundation treatment device. The soft soil foundation treatment device comprises a tunneling cylinder and a bottom cylinder fixedly mounted at the bottom of the tunneling cylinder, a drill bit is rotatably mounted at the bottom of the bottom cylinder, and a first driving motor is fixedly mounted on the inner wall of the bottom of the bottom cylinder. An output shaft of the first driving motor extends to the position below the bottom cylinder and is fixedly connected with the top of the drill bit, a top frame is fixedly installed on the top of the tunneling cylinder, two grouting pipes are fixedly installed in the tunneling cylinder, a rotating shaft is rotatably installed on the inner wall of the bottom of the tunneling cylinder, and a top frame is fixedly installed on the top of the rotating shaft. And a plurality of extension pipes are mounted on the outer wall of the tunneling cylinder in a sliding manner. The soft soil foundation treatment device provided by the utility model has the advantages of being convenient to operate, improving the stability of curing agent discharge and improving the efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation treatment, in particular to a soft soil foundation treatment device. Background Art

[0002] Soft soil foundation is soil with high compressibility, low shear strength, low permeability, thixotropy, rheology, and unevenness. When constructing buildings on this kind of land, in order to prevent large settlement of the foundation, the soil needs to be treated before construction. Currently common treatment methods include dynamic tamping and chemical reinforcement. Among them, the chemical reinforcement method of soil treatment is achieved by adding quicklime blocks and cement to make the soil undergo a series of physical and chemical reactions. It is widely used due to its low labor intensity and fast construction progress.

[0003] A soft soil base processing device is proposed in the prior art, and its application number is: 202120557426.2, which includes a fixed cylinder, a material box and a fixed support device are provided on the outer wall of the fixed cylinder, the upper end of the fixed cylinder is fixedly connected to the control box through a fixed rod, the interior of the fixed cylinder is connected to the support cylinder through a thread, the upper end of the support cylinder is provided with a fixed frame, a motor is provided between the fixed frames, the motor controls the support cylinder to rotate on the inner wall thread of the fixed cylinder, a cylinder is provided at the upper end of the inner wall of the support cylinder, the piston rod end of the cylinder is fixedly connected to the upper end of the positioning cylinder, the lower part of the support cylinder is sleeved with the positioning cylinder, a spiral conveying device is provided inside the positioning cylinder, and a drill bit is installed at the lower end of the positioning cylinder. Although this utility model has the advantages of high working efficiency, diversified processing methods, and good use effect compared with the prior art.

[0004] However, there are certain disadvantages in actual use. For example, the curing agent in the application is transmitted by rotating conveying blades and discharged to the outside through multiple through holes. However, in actual use, due to the unevenness and rheology of the soft soil foundation, it is semi-muddy in most cases. The soil in this state will deform after the positioning cylinder of the application enters the soil layer, and will be tightly included in the outside of the positioning cylinder, thereby blocking the through holes for discharging the curing agent, resulting in the curing agent being unable to be discharged normally.

[0005] Therefore, it is necessary to provide a new soft soil foundation processing device to solve the above technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a soft soil foundation treatment device which is convenient to operate, improves the stability of curing agent discharge and improves efficiency.

[0007] In order to solve the above technical problems, the soft soil foundation processing device provided by the utility model includes: a tunneling tube and a bottom tube fixedly installed at the bottom of the tunneling tube, a drill bit is rotatably installed at the bottom of the bottom tube, a drive motor 1 is fixedly installed on the bottom inner wall of the bottom tube, the output shaft of the drive motor 1 extends to the bottom of the bottom tube and is fixedly connected to the top of the drill bit, a top frame is fixedly installed on the top of the tunneling tube, two grouting pipes are fixedly installed in the tunneling tube, a rotating shaft is rotatably installed on the bottom inner wall of the tunneling tube, and a plurality of extension pipes are slidably installed on the outer wall of the tunneling tube.

[0008] Preferably, two grouting pipes are fixedly installed on the inner wall of the tunneling tube, a driving shaft is fixedly installed on the top of the rotating shaft, a second driving motor is fixedly installed on the top of the top frame, the top of the driving shaft is fixedly connected to the output shaft of the second driving motor, and the tops of the two grouting pipes are fixedly connected to connecting pipes.

[0009] Preferably, multiple scrapers are slidably mounted on the outer wall of the tunneling tube, and two corresponding scrapers are in contact with the outer wall of the corresponding extension tube. Multiple limit rods are fixedly mounted on the inner wall of the tunneling tube, and connecting plates are slidably mounted on the multiple limit rods. The multiple connecting plates are respectively fixedly connected to the outer walls of the multiple scrapers.

[0010] Preferably, a plurality of active bevel teeth are fixedly sleeved on the outer wall of the rotating shaft, and a plurality of threaded rods are rotatably installed on the inner wall of the excavation tube. The rotation directions of the external threads on the two corresponding threaded rods are opposite. Driven bevel teeth are fixedly installed on the ends of the multiple threaded rods close to each other, and the two corresponding driven bevel teeth are meshed with the corresponding active bevel teeth. Transmission plates are threadedly sleeved on the outer walls of the multiple threaded rods.

[0011] Preferably, a push plate is fixedly mounted on the outer walls of the plurality of extension tubes, and a hinge plate is rotatably mounted between the plurality of push plates and the two corresponding transmission plates.

[0012] Preferably, a plurality of branch pipes are fixedly mounted on the outer walls of the two grouting pipes, one end of each of the branch pipes is connected to a hose, and one end of each of the hoses is respectively connected to a plurality of extension pipes.

[0013] Compared with the related art, the soft soil foundation treatment device provided by the utility model has the following beneficial effects:

[0014] The utility model provides a soft soil foundation treatment device. In the process of treating the soft soil foundation by a chemical reinforcement method, in the present application, by starting the second driving motor, the extension pipe can be moved out of the excavation tube, and the curing agent is injected after being inserted into the ground. Compared with the method of the comparative document, it can effectively prevent the injection port from being blocked by silt, improve the stability of the curing agent injection, and improve the treatment efficiency of the soft soil foundation to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a preferred embodiment of the soft soil foundation processing device provided by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the bottom tube shown;

[0017] Figure 3 for Figure 1 A schematic diagram of the side cross-sectional structure of the tunneling tube shown;

[0018] Figure 4 for Figure 3 An enlarged schematic diagram of part A is shown;

[0019] Figure 5 for Figure 1 A schematic diagram of a cross-sectional structure of a tunneling tube as shown;

[0020] Figure 6 for Figure 1 A schematic diagram of the side view structure of the inner wall of the tunneling tube shown;

[0021] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the top frame shown.

[0022] Numbers in the figure: 1. Excavation tube; 2. Bottom tube; 3. Drill bit; 4. Top frame; 5. Drive motor 1; 6. Placement slot; 7. Scraper; 8. Rotating shaft; 9. Grouting pipe; 10. Drive shaft; 11. Drive motor 2; 12. Connecting pipe; 13. Limit rod; 14. Extension pipe; 15. Connecting plate; 16. Active bevel gear; 17. Threaded rod; 18. Driven bevel gear; 19. Transmission plate; 20. Push plate; 21. Articulated plate; 22. Branch pipe; 23. Hose. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] Please refer to Figure 1-Figure 7 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of the soft soil foundation processing device provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the bottom tube shown; Figure 3 for Figure 1 A schematic diagram of the side cross-sectional structure of the tunneling tube shown; Figure 4 for Figure 3 An enlarged schematic diagram of part A is shown; Figure 5 for Figure 1 A schematic diagram of a cross-sectional structure of a tunneling tube as shown; Figure 6 for Figure 1 A schematic diagram of the side view structure of the inner wall of the tunneling tube shown; Figure 7 for Figure 1 The soft soil foundation treatment device comprises: a tunneling tube 1 and a bottom tube 2 fixedly mounted at the bottom of the tunneling tube 1, a drill bit 3 is rotatably mounted at the bottom of the bottom tube 2, and a drill bit 3 is rotatably mounted at the bottom of the bottom tube 2. Figure 2 As shown, a circular slide rail is fixedly installed at the bottom of the bottom tube 2, the top of the drill bit 3 is embedded in the slide rail and slidably connected with its inner wall, a drive motor 5 is fixedly installed on the bottom inner wall of the bottom tube 2, and the output shaft of the drive motor 5 extends to the bottom of the bottom tube 2 and is fixedly connected to the top of the drill bit 3, and a top frame 4 is fixedly installed on the top of the excavation tube 1. Figure 1 As shown, the top frame 4 is formed in the shape of the letter "N". In actual use, the top frame 4 is connected to an external driving device. During the drilling process, the top frame 4 needs to keep sliding in the vertical direction. Two grouting pipes 9 are fixedly installed in the excavation tube 1. A rotating shaft 8 is rotatably installed on the bottom inner wall of the excavation tube 1. A plurality of extension pipes 14 are slidably installed on the outer wall of the excavation tube 1. Figure 1 and Figure 5 As shown, the plurality of extension tubes 14 are grouped in two, and the two extension tubes 14 in each group are mirror-imaged based on the midpoint of the tunneling tube 1 , and the plurality of groups of extension tubes 14 are distributed in a linear array.

[0025] Two grouting pipes 9 are fixedly installed on the inner wall of the tunneling tube 1. The two grouting pipes 9 are symmetrically arranged based on the midpoint of the tunneling tube 1. The top of the rotating shaft 8 and the two grouting pipes 9 extend into the top frame 4. A driving shaft 10 is fixedly installed on the top of the rotating shaft 8. A driving motor 11 is fixedly installed on the top of the top frame 4. The top of the driving shaft 10 is fixedly connected to the output shaft of the driving motor 11. The tops of the two grouting pipes 9 are fixedly connected to a connecting pipe 12. Figure 7 As shown, the two connecting pipes 12 are fixedly mounted on the outer walls of both sides of the top frame 4, and the top ends of the two connecting pipes 12 are connected together. In actual use, they are connected to an external mud pump, and the curing agent is injected into the two grouting pipes 9 through the mud pump during operation.

[0026] A plurality of scrapers 7 are slidably mounted on the outer wall of the excavation tube 1, and two corresponding scrapers 7 are in contact with the outer wall of the corresponding extension tube 14. Figure 3As shown, a plurality of placement grooves 6 are provided on the outer wall of the excavation tube 1, and a plurality of the extension tubes 14 are extended into the corresponding placement grooves 6. Two scrapers 7 are slidably installed in any placement groove 6, and the two scrapers 7 are mirror-imaged based on the midpoint of the extension tube 14. A plurality of limit rods 13 are fixedly installed on the inner wall of the excavation tube 1, and a plurality of connecting plates 15 are slidably installed on the limit rods 13. The plurality of connecting plates 15 are respectively fixedly connected to the outer walls of the plurality of scrapers 7, and the plurality of the connecting plates 15 are respectively fixedly connected to the outer walls of the plurality of the scrapers 7. Figure 6 As shown, multiple limit rods 13 are fixedly installed on the inner wall of the tunneling tube 1 through two convex plates, and multiple limit rods 13 are sleeved with springs. One ends of the multiple springs are respectively fixedly connected to the connecting plate 15, and the other ends of the multiple springs are respectively fixedly connected to the corresponding convex plates.

[0027] A plurality of active bevel teeth 16 are fixedly sleeved on the outer wall of the rotating shaft 8, and a plurality of threaded rods 17 are rotatably mounted on the inner wall of the excavation tube 1. Figure 4 and Figure 5 As shown, a plurality of threaded rods 17 are respectively located on both sides of the rotating shaft 8, and the corresponding two threaded rods 17 are arranged based on the midpoint mirror image of the tunneling tube 1, and the rotation directions of the external threads on the corresponding two threaded rods 17 are opposite, and a driven bevel gear 18 is fixedly installed on one end of the plurality of threaded rods 17 close to each other, and the corresponding two driven bevel gears 18 are meshed with the corresponding active bevel gear 16, and a transmission plate 19 is threadedly sleeved on the outer wall of the plurality of threaded rods 17, and the plurality of threaded rods 17 are combined with the driven bevel gear 18 to form a driving bevel gear 16. Figure 4 As shown, internal threaded barrels are fixedly installed through the plurality of transmission plates 19 , and the plurality of threaded rods 17 penetrate the plurality of internal threaded barrels respectively and are screwed together with the inner walls thereof.

[0028] A push plate 20 is fixedly mounted on the outer wall of each of the plurality of extension tubes 14, and a hinge plate 21 is rotatably mounted between each of the plurality of push plates 20 and the corresponding two transmission plates 19. Figure 5 As shown, one end of the hinge plate 21 is rotatably connected to an outer wall of one side of the push plate 20 , and the other end of the hinge plate 21 is rotatably connected to an outer wall of one side of the transmission plate 19 .

[0029] A plurality of branch pipes 22 are fixedly mounted on the outer walls of the two grouting pipes 9 , one end of each of the branch pipes 22 is connected to a hose 23 , and one end of each of the hoses 23 is connected to the plurality of extension pipes 14 .

[0030] The working principle of the soft soil foundation treatment device provided by the utility model is as follows:

[0031] When it is necessary to treat the soft soil foundation by adding a curing agent, the staff can first connect the top frame 4 to the external driving device so that the boring tube 1 can keep moving in the vertical direction, and at the same time connect the top ends of the two connecting pipes 12 to the slurry outlet of the external mud pump, and then start the driving motor 5. The output shaft of the driving motor 5 starts to rotate, which will drive the drill bit 3 to rotate and move downward under the influence of the external driving device. After the drill bit 3 breaks the soil, the boring tube 1 will gradually sink into the soft soil foundation.

[0032] After descending to a suitable depth, the staff can start the drive motor 2 11. The output shaft of the drive motor 2 11 starts to rotate, which will drive the drive shaft 10 to rotate, thereby driving the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 will further drive the multiple active bevel gears 16 in the tunneling barrel 1 to rotate, and then drive the multiple driven bevel gears 18 and the multiple threaded rods 17 to rotate, so that the two transmission plates 19 on the corresponding two threaded rods 17 are close to each other. At this time, under the push of the hinged plate 21, the corresponding two push plates 20 will move away from each other, so that the multiple extension tubes 14 are moved away from each other. Finally, the multiple extension tubes 14 are gradually moved out of the tunneling barrel 1 and further inserted into the soil. During the movement of the extension tube 14, the reserved hose 23 can always keep the extension tube 14 connected to the branch pipe 22.

[0033] Then the external mud pump can be started. The mud pump starts to inject the externally prepared curing agent into the two grouting pipes 9 through the two connecting pipes 12, and then passes through multiple branch pipes 22 and multiple hoses 23 and then injected into the extension pipe 14, and finally injected into the external soil through the extension pipe 14.

[0034] After the curing agent is injected, the drive motor 11 is started in reverse, and through the above-mentioned reverse transmission, the multiple extension tubes 14 are finally moved in reverse and enter the boring tube 1 again. In this process, the multiple scrapers 7 will be tightly attached to the outer wall of the extension tube 14 under the effect of the spring, thereby scraping off the silt and debris on the outer wall of the extension tube 14 to prevent the debris from being brought into the boring tube 1.

[0035] Compared with the related art, the soft soil foundation treatment device provided by the utility model has the following beneficial effects:

[0036] The utility model provides a soft soil foundation treatment device. In the process of treating the soft soil foundation by a chemical reinforcement method, in the present application, by starting the driving motor 2 11, the extension tube 14 can be moved out of the boring tube 1, and the curing agent is injected after being inserted into the ground. Compared with the method of the comparative document, it can effectively prevent the injection port from being blocked by silt, improve the stability of the curing agent injection, and improve the treatment efficiency of the soft soil foundation to a certain extent.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A soft soil foundation treatment device, comprising: A tunneling barrel and a bottom barrel fixedly installed at the bottom of the tunneling barrel, characterized in that a drill bit is rotatably installed at the bottom of the bottom barrel, a drive motor 1 is fixedly installed on the bottom inner wall of the bottom barrel, the output shaft of the drive motor 1 extends to the bottom of the bottom barrel and is fixedly connected to the top of the drill bit, a top frame is fixedly installed on the top of the tunneling barrel, two grouting pipes are fixedly installed in the tunneling barrel, a rotating shaft is rotatably installed on the bottom inner wall of the tunneling barrel, and a plurality of extension pipes are slidably installed on the outer wall of the tunneling barrel.

2. The soft soil foundation treatment device according to claim 1, characterized in that: Two grouting pipes are fixedly installed on the inner wall of the tunneling tube, a driving shaft is fixedly installed on the top of the rotating shaft, a second driving motor is fixedly installed on the top of the top frame, the top of the driving shaft is fixedly connected to the output shaft of the second driving motor, and the tops of the two grouting pipes are fixedly connected to connecting pipes.

3. The soft soil foundation treatment device according to claim 2, characterized in that: A plurality of scrapers are slidably mounted on the outer wall of the tunneling tube, and two corresponding scrapers are in contact with the outer wall of the corresponding extension tube. A plurality of limit rods are fixedly mounted on the inner wall of the tunneling tube, and connecting plates are slidably mounted on the limit rods. The connecting plates are respectively fixedly connected to the outer walls of the plurality of scrapers.

4. The soft soil foundation treatment device according to claim 3, characterized in that: A plurality of active bevel gears are fixedly sleeved on the outer wall of the rotating shaft, and a plurality of threaded rods are rotatably installed on the inner wall of the tunneling tube. The rotation directions of the external threads on the two corresponding threaded rods are opposite. A driven bevel gear is fixedly installed on one end of the plurality of threaded rods close to each other, and the two corresponding driven bevel gears are meshed with the corresponding active bevel gears. A transmission plate is threadedly sleeved on the outer walls of the plurality of threaded rods.

5. The soft soil foundation treatment device according to claim 4, characterized in that: A push plate is fixedly installed on the outer walls of the plurality of extension tubes, and a hinge plate is rotatably installed between the plurality of push plates and the two corresponding transmission plates.

6. The soft soil foundation treatment device according to claim 5, characterized in that: A plurality of branch pipes are fixedly mounted on the outer walls of the two grouting pipes, one end of each of the branch pipes is connected with a hose, and one end of each of the hoses is respectively connected with the plurality of extension pipes.

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