Foundation treatment equipment for soft soil foundation

Abstract

The utility model provides foundation treatment equipment for a soft soil foundation, which comprises a pipe pile, a connecting pile arranged below the pipe pile and made of a permeable material, a pile head arranged on the outer side of the bottom end of the connecting pile, a sealing cover sleeved on the outer side of the top end of the pipe pile in a threaded manner, and an air inlet pipe communicated with a high-pressure air source and arranged in the sealing cover, a support is sleeved with the top end of the pipe pile, and a cavity is formed in the connecting pile. According to the foundation treatment equipment for the soft soil foundation, high-pressure gas conveyed into the cavity can be heated by electrifying the heating pipe, so that high-temperature and high-pressure gas discharged from the interior of the connecting pile can heat water in the tubular pile soft soil foundation; furthermore, water in the soft soil foundation is easily conveyed along with flowing of the high-pressure gas after being evaporated, so that the drainage efficiency of the equipment is improved, and the water in the soft soil foundation can be gradually condensed under contact with the high-temperature gas along with gradual reduction of the water in the soft soil foundation.

Description

Technical Field

[0001] The utility model relates to the technical field of soft soil foundation treatment, and specifically discloses a foundation treatment device for a soft soil foundation. Background Art

[0002] If the foundation is not strong enough before construction, in order to prevent accidents such as foundation sinking and cracking after construction, which may cause building instability, the soft foundation needs to be treated so that its settlement becomes strong enough and the consolidation and stability of the soft foundation can be improved to the design requirements.

[0003] In the existing process of draining the soft soil foundation using the drainage consolidation method, it is necessary to use a high-pressure pump to inject high-pressure gas into the pipe pile, and then use a vacuum pump to evacuate the other pipe pile. The high-pressure gas can squeeze the moisture in the soft soil foundation around the pipe pile and transport it to the other pipe pile. Since the temperature of the high-pressure gas is relatively low, it cannot evaporate the moisture in the soft soil foundation when it comes into contact with the moisture in the soft soil foundation, making it difficult for the moisture in the soft soil foundation to be transported along with the flow of the high-pressure gas, resulting in low drainage efficiency of the equipment. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a foundation treatment device for a soft soil foundation, comprising a pipe pile, a connecting pile arranged below the pipe pile and made of a permeable material, a pile head arranged on the outside of the bottom end of the connecting pile, a sealing cover threadedly sleeved on the outside of the top end of the pipe pile, and an air inlet pipe connected to a high-pressure gas source and arranged inside the sealing cover, wherein the top end of the pipe pile is internally sleeved with a bracket, the connecting pile is internally provided with a cavity, the bracket is hoisted with a heating seat located inside the bottom end of the pipe pile by a hoisting rope, the heating seat is internally provided with heating pipes distributed in an annular manner with equal spacing and located inside the cavity, and the heating seat is internally provided with an air inlet pipe connected to the heating pipe. A high-temperature resistant wire is electrically connected, the top end of the high-temperature resistant wire is electrically connected with a converter fixedly sleeved inside the middle part of the bracket, the pipe pile and the pile head are commonly provided with a connecting rod pre-buried inside the connecting pile, a one-way valve located above the sealing cover is installed on the outside of the air inlet pipe, a first electrode and a second electrode are arranged inside the sealing cover, a first insulating rod and a second insulating rod are movably sleeved inside the bracket, the first insulating rod extends out of the top end of the bracket and is fixedly sleeved with a first conductive ring located below the first electrode, and the second insulating rod extends out of the top end of the bracket and is fixedly sleeved with a second conductive ring located below the second electrode.

[0005] Preferably, the outer sides of the first insulating rod and the second insulating rod are both provided with springs respectively located between the bracket and the first conductive ring and between the bracket and the second conductive ring, and the outer sides of the bottom ends of the first insulating rod and the second insulating rod extending out of the bracket are both clamped with clamping rings.

[0006] Preferably, a guide groove matched with the bracket is provided on the inner side of the top end of the pipe pile.

[0007] Preferably, the outer fixed sleeve of the top end of the connecting rod is provided with a limiting plate located between the pipe pile and the connecting pile.

[0008] The utility model has the following effects:

[0009] 1. The foundation treatment equipment for the soft soil foundation can heat the high-pressure gas transported to the inside of the cavity by energizing the heating pipe, so that the high-temperature and high-pressure gas discharged from the inside of the connecting pile can heat the moisture in the soft soil foundation of the pipe pile, and then the moisture in the soft soil foundation is easily transported along with the flow of the high-pressure gas after evaporation, thereby improving the drainage efficiency of the equipment, and as the moisture in the soft soil foundation gradually decreases, it can gradually condense under contact with the high-temperature gas.

[0010] 2. The foundation treatment equipment for soft soil foundation, through the coordinated use of the bracket, the first insulating rod and the second insulating rod, enables the first electrode and the second electrode to compress the spring through the first conductive ring and the second conductive ring during the tightening and fixing process of the sealing cover, and then the elastic force of the spring enables the electrode and the conductive ring to be in close contact, ensuring that the circuit of the heating tube can be connected, and after the equipment is used, the sealing cover can be directly disassembled, and the heating tube can be gradually pulled out from the inside of the connecting pile and the pipe pile through the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 A magnified schematic diagram of the structure at center A;

[0014] Figure 3 It is a partial schematic diagram of the structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the distribution of the connecting rods of the structure of the utility model;

[0016] Figure 5 This is a schematic diagram of the heating tube distribution of the utility model structure.

[0017] In the figure: 1. pipe pile; 2. connecting pile; 3. pile head; 4. sealing cover; 5. air inlet pipe; 6. bracket; 7. cavity; 8. lifting rope; 9. heating seat; 10. heating tube; 11. high temperature resistant wire; 12. adapter; 13. connecting rod; 14. one-way valve; 15. first electrode; 16. second electrode; 17. first insulating rod; 18. second insulating rod; 19. first conductive ring; 20. second conductive ring; 21. spring; 22. snap ring; 23. guide groove; 24. limit plate. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0019] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0020] See also Figure 1-5A foundation treatment device for soft soil foundation includes a pipe pile 1, a connecting pile 2 arranged below the pipe pile 1 and made of a permeable material, a pile head 3 arranged outside the bottom end of the connecting pile 2, a sealing cover 4 threadedly sleeved on the outside of the top end of the pipe pile 1, and an air inlet pipe 5 connected to a high-pressure gas source and arranged inside the sealing cover 4. A bracket 6 is set inside the top end of the pipe pile 1, and a cavity 7 is arranged inside the connecting pile 2. The bracket 6 is hoisted with a heating seat 9 located inside the bottom end of the pipe pile 1 through a hoisting rope 8, and the length of the hoisting rope 8 is greater than the length of the pipe pile 1, so as to ensure that the heating seat 9 is hoisted to the inside of the pipe pile 1. The heating tube 10 can be completely distributed inside the cavity 7. The heating seat 9 is provided with a ring-shaped heating tube 10 which is evenly spaced and located inside the cavity 7. The high-pressure gas inside the cavity 7 can be heated by energizing the heating tube 10. The heating tube 10 is located outside the pipe pile 1, so that the generated high-temperature gas will not directly heat the pipe pile 1, thereby reducing heat loss and ensuring that the concrete structure inside the pipe pile 1 will not be damaged. The heating seat 9 is provided with a high-temperature resistant wire 11 which is electrically connected to the heating tube 10. The top of the high-temperature resistant wire 11 is The end is electrically connected with an adapter 12 fixedly sleeved in the middle of the bracket 6, and the pipe pile 1 and the pile head 3 are jointly provided with a connecting rod 13 pre-buried in the connecting pile 2. A one-way valve 14 located above the sealing cover 4 is installed on the outside of the air inlet pipe 5. The one-way valve 14 allows the high-pressure gas delivered from the air inlet pipe 5 to the inside of the pipe pile 1 to flow in one direction, and then when the high-pressure gas source stops working, the high-pressure gas inside the pipe pile 1 will not flow in the reverse direction through the air inlet pipe 5. The sealing cover 4 is provided with a first electrode 15 and a second electrode 16, and the inside of the bracket 6 is movably sleeved with a first insulating Rod 17 and a second insulating rod 18, the first insulating rod 17 extends out of the top outside of the bracket 6 and is fixedly sleeved with a first conductive ring 19 located below the first electrode 15, and the second insulating rod 18 extends out of the top outside of the bracket 6 and is fixedly sleeved with a second conductive ring 20 located below the second electrode 16, through the cooperation of the first conductive ring 19 and the second conductive ring 20, the first electrode 15 and the second electrode 16 can be in contact with the first conductive ring 19 and the second conductive ring 20 during the process of tightening the sealing cover 4, and the first electrode 15 and the second electrode 16 can be rotated.

[0021] Among them, the outer sides of the first insulating rod 17 and the second insulating rod 18 are both equipped with springs 21 respectively located between the bracket 6 and the first conductive ring 19 and between the bracket 6 and the second conductive ring 20. The elastic force of the spring 21 can drive the first conductive ring 19 and the second conductive ring 20 to move upward, thereby ensuring that the first conductive ring 19 and the second conductive ring 20 can be in close contact with the first electrode 15 and the second electrode 16, and the outer sides of the bottom ends of the first insulating rod 17 and the second insulating rod 18 extending outside the bracket 6 are clamped with a clamping ring 22. The clamping ring 22 can limit the first insulating rod 17 and the second insulating rod 18 while preventing the first insulating rod 17 and the second insulating rod 18 from detaching from the inside of the bracket 6 under the elastic force of the spring 21.

[0022] Among them, a guide groove 23 adapted to the bracket 6 is opened on the inner side of the top of the pipe pile 1, and the bracket 6 can be limited by the guide groove 23, so that the bracket 6 will not rotate during the rotation of the sealing cover 4, and the bracket 6 can be directly disassembled and assembled after removing the sealing cover 4, so as to facilitate the heating tube 10 to be gradually taken out from the inside of the connecting pile 2 and the pipe pile 1 through the bracket 6.

[0023] Among them, the outer fixed sleeve on the top of the connecting rod 13 is provided with a limit plate 24 located between the pipe pile 1 and the connecting pile 2. The limit plate 24 can increase the structural strength of the connecting rod 13 and stably limit the pile head 3, so that the pile head 3 is not easy to deviate when subjected to external force, and the force generated by the pipe pile 1 can be transmitted to the pile head 3 through the cooperation of the connecting rod 13 and the limit plate 24, thereby reducing the force acting on the connecting pile 2, thereby ensuring that the pile head 3 can effectively protect the connecting pile 2 during the piling process to avoid damage to the connecting pile 2.

[0024] When the device is in use, after the first electrode 15 and the second electrode 16 are energized, the current is transmitted to the heating tube 10 through the first conductive ring 19, the second conductive ring 20, the adapter 12 and the high-temperature resistant wire 11. When the heating tube 10 is energized, heat is generated and the air inlet pipe 5 is connected. The high-pressure gas is transported to the inside of the pipe pile 1 and the connecting pile 2 through the one-way valve 14. The high-pressure gas inside the cavity 7 is heated by the heating tube 10. As the gas pressure inside the pipe pile 1 increases, the heated high-temperature and high-pressure gas is transported to the soft soil foundation outside the pipe pile 1 through the connecting pile 2 under the action of the gas pressure. As the high-temperature and high-pressure gas is gradually transported, the moisture in the soft soil foundation is gradually squeezed out to the outside of the pipe pile 1. When the high-temperature and high-pressure gas contacts the moisture, the moisture can evaporate, and after evaporation, the moisture can be transported together with the flow of the high-pressure gas. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A foundation treatment device for a soft soil foundation, comprising a pipe pile (1), a connecting pile (2) arranged below the pipe pile (1) and made of a water-permeable material, a pile head (3) arranged outside the bottom end of the connecting pile (2), a sealing cover (4) threadedly sleeved on the outside of the top end of the pipe pile (1), and an air inlet pipe (5) connected to a high-pressure air source and arranged inside the sealing cover (4), characterized in that: The top of the pipe pile (1) is internally sleeved with a bracket (6), the connection pile (2) is internally provided with a cavity (7), the bracket (6) is hoisted with a heating seat (9) located inside the bottom of the pipe pile (1) via a hoisting rope (8), the heating seat (9) is internally provided with heating tubes (10) distributed in an annular manner and located inside the cavity (7), the heating seat (9) is internally provided with a high-temperature resistant wire (11) electrically connected to the heating tube (10), the top of the high-temperature resistant wire (11) is electrically connected to a conversion joint (12) fixedly sleeved inside the middle of the bracket (6), the pipe pile (1) and the pile head (3) are internally provided with a pre-buried heating element (11) in the connection pile (6), and the heating element (11) is electrically connected to the top of the high-temperature resistant wire (11). A connecting rod (13) is provided inside the connecting pile (2); a one-way valve (14) is installed on the outside of the air inlet pipe (5) and is located above the sealing cover (4); a first electrode (15) and a second electrode (16) are provided inside the sealing cover (4); a first insulating rod (17) and a second insulating rod (18) are movably sleeved inside the bracket (6); a first conductive ring (19) located below the first electrode (15) is fixedly sleeved on the outside of the top end of the first insulating rod (17) extending outside the bracket (6); and a second conductive ring (20) located below the second electrode (16) is fixedly sleeved on the outside of the top end of the second insulating rod (18) extending outside the bracket (6).

2. The soft soil foundation treatment equipment according to claim 1, characterized in that: The outer sides of the first insulating rod (17) and the second insulating rod (18) are both provided with springs (21) respectively located between the bracket (6) and the first conductive ring (19) and between the bracket (6) and the second conductive ring (20), and the outer sides of the bottom ends of the first insulating rod (17) and the second insulating rod (18) extending outside the bracket (6) are both clamped with clamping rings (22).

3. The soft soil foundation treatment equipment according to claim 1, characterized in that: A guide groove (23) adapted to the bracket (6) is provided on the inner side of the top end of the pipe pile (1).

4. The soft soil foundation treatment equipment according to claim 1, characterized in that: A limiting plate (24) is fixedly sleeved on the outer side of the top end of the connecting rod (13) and is located between the pipe pile (1) and the connecting pile (2).

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