Water collection and strong drainage device for soft soil foundation reinforcement treatment

By adopting water-gathering strong drainage devices on the soft soil foundation, including grouting layer, permeable layer and prefabricated piles, the problems of low strength and poor permeability of the soft soil foundation are solved, and more efficient reinforcement and drainage effects are achieved, and project quality and safety are improved.

CN119531333APending Publication Date: 2025-02-28NUCLEAR IND SOUTH CHINA HUADU CONSTR ENG
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Patent Information

Application Number
CN202411974768.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-02-28

AI Technical Summary

Technical Problem

Due to its low strength, high compression and poor water permeability, soft soil foundations lead to uneven settlement and insufficient bearing capacity. Traditional reinforcement methods have limited drainage and reinforcement effects on deep soft soil.

Method used

A soft soil foundation reinforcement treatment water collection and strong drainage device is used, including soft soil basic body, water collection box, grouting layer, permeable layer and prefabricated piles. The grouting layer is located inside the soft soil base, the grille disperses pressure, prefabricated piles provide extrusion support, the permeable layer material is layered to improve drainage efficiency, and the water collection box collects moisture and discharges through the drainage mechanism.

Benefits of technology

By reinforcing the surface, dispersing pressure, providing extrusion support and improving drainage efficiency, the strength, deformation resistance and drainage effect of soft soil foundations are significantly improved, the construction cycle is shortened, and material and energy consumption is reduced.

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Abstract

The invention relates to a soft soil foundation reinforcement treatment water collection and strong drainage device, and relates to the technical field of soft soil foundation reinforcement engineering.The soft soil foundation reinforcement treatment water collection and strong drainage device comprises a soft soil foundation body and a water collection box, a grouting layer is arranged on the inner side of the soft soil foundation body, the water collection box is arranged at the bottom of the soft soil foundation body, and a grating is arranged above the water collection box; a first permeable layer and a second permeable layer are arranged in the position, close to the lower portion of the grouting layer, of the soft soil foundation body, and the first permeable layer is located above the second permeable layer. Through layered arrangement of a plurality of reinforcing materials and permeable materials, distribution of drainage mechanisms and laying of a filter screen above a water collection box, fine particles of a soft soil base layer can be prevented from permeating into permeable concrete, and the pore structure of the permeable concrete is prevented from being damaged; the strength and deformation resistance of the soft soil foundation and the moisture infiltration capacity of the soft soil layer are enhanced, and the drainage efficiency is improved.
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Description

Technical Field

[0001] The present application relates to the technical field of soft soil foundation reinforcement engineering, and in particular to a water collection and drainage device for reinforcing and treating a soft soil foundation. Background Art

[0002] Soft soil foundation refers to a soil layer with low bearing capacity, high compressibility, low strength and instability. Common soft soils include clay, silt, sediment, etc. These soils are easy to deform when there is more water and have poor bearing capacity. The characteristics of soft soil foundation are easy settlement and uneven settlement, which may cause displacement or damage to the building foundation.

[0003] Due to its low strength, high compressibility and poor permeability, soft soil foundation often leads to uneven foundation settlement and insufficient bearing capacity in engineering construction. Traditional treatment methods include replacement method, preloading method, chemical reinforcement, etc., but the drainage reinforcement effect of deep soft soil is limited, resulting in poor drainage effect of soft soil foundation, low water permeability, and inability to adjust construction conditions according to drainage effect, which prolongs the construction period and increases material and energy consumption. Therefore, we propose a water collection and strong drainage device for soft soil foundation reinforcement treatment. Summary of the invention

[0004] The purpose of this application is to provide a water collection and drainage device for reinforcing a soft soil foundation.

[0005] The present application provides a water-collecting and strong drainage device for reinforcing and treating a soft soil foundation, which adopts the following technical solution: a water-collecting and strong drainage device for reinforcing and treating a soft soil foundation, comprising a soft soil foundation body and a water-collecting box, wherein a grouting layer is provided on the inner side of the soft soil foundation body, the water-collecting box is arranged at the bottom position of the soft soil foundation body, a grille is provided above the water-collecting box, and a No. 1 permeable layer and a No. 2 permeable layer are provided inside the soft soil foundation body near the bottom of the grouting layer, and the No. 1 permeable layer is located above the No. 2 permeable layer.

[0006] By adopting the above technical solution, the grouting layer is located on the inner side of the soft soil foundation body, and the surface position of the soft soil foundation body is reinforced to prevent water on the surface layer of the ground from flowing into the interior of the soft soil foundation. At the same time, the grid is arranged above the water collecting box. The grid disperses the pressure of the soft soil foundation body on the water collecting box, thereby enhancing the strength and stability of the soft soil foundation.

[0007] Optionally, a plurality of prefabricated piles are passed through the inner sides of the soft soil basic body, the grouting layer, the first permeable layer and the second permeable layer, and a plurality of grouting ports are opened on the inner side of the soft soil basic body close to the grouting layer.

[0008] By adopting the above technical scheme, the precast piles squeeze and support the soft soil foundation again, and by setting the No. 1 permeable layer and the No. 2 permeable layer, the drainage of the soft soil foundation is layered. The No. 1 permeable layer is made of a highly permeable polymer composite material, which can quickly penetrate and guide the moisture under the grouting layer into the lower layer. The No. 2 permeable layer is set as a permeable gravel layer or a permeable geotextile, and the water collection box is made of permeable concrete. When the moisture reaches the water collection box, it enters the water collection box through the pores of the permeable concrete for collection.

[0009] Optionally, a grouting pipe is movably sleeved on one end of the grouting port close to the outside of the soft soil foundation body, and positioning pins distributed at equal intervals are provided below the water collecting box.

[0010] By adopting the above technical solution, the grouting port is used to inject cement slurry into the grouting layer, and the grouting pipe supports the top of the grouting port to facilitate grouting after covering the top with soil. The arrangement of several positioning pins under the water collecting box increases the contact area between the water collecting box and the soft soil base body, which is beneficial to improving the stability of the water collecting box.

[0011] Optionally, a water level sensor is installed on the top of the inner cavity of the water collecting box, soil pressure sensors are provided at both ends of the inner body of the soft soil base, prefabricated plates are provided with equal intervals between the second permeable layer and the grid, and the prefabricated plates are located inside the soft soil base body, a water guide groove is opened on the inner side of the prefabricated plate, and chamfered portions are provided with equal intervals at both ends of the prefabricated plate, and the prefabricated plate is configured as an inverted triangle structure.

[0012] By adopting the above technical scheme, water enters the inner cavity of the water collection box by infiltration, the water level sensor monitors the moisture content height inside the soft soil foundation in real time, and the soil pressure sensor monitors the deformation of the soft soil foundation and the pressure exerted on the water collection box, providing a basis for adjusting the drainage strategy and reinforcement measures. The prefabricated plate is set as an inverted triangle structure. When the prefabricated plate is subjected to the pressure exerted on the soft soil foundation from above, the end of the prefabricated plate will be inserted deeper downward, effectively dispersing the pressure on the soft soil foundation, preventing excessive settlement, and improving the shear strength of the soil. The sharp corners of the chamfered part are facing upward, and the water can flow along the sharp corners and the inclined surface of the triangular plate. At the same time, the soil of the soft soil foundation is accumulated in the water guide groove, and the water therein can flow downward through the water guide groove without being dispersed everywhere, avoiding water retention. The chamfered part helps to form a larger friction contact with the surrounding soft soil, which can not only help to divert the water to the water collection box, but also strengthen the soft soil foundation.

[0013] Optionally, a plurality of water outlets are provided at the bottom of the water collecting box, and a filter is provided at the top of the water collecting box near the grille.

[0014] By adopting the above technical solution and laying a filter screen above the water collecting box, it is possible to prevent fine particles of the soft soil base from penetrating into the permeable concrete, thereby avoiding damage to the pore structure of the permeable concrete.

[0015] Optionally, a drainage mechanism is connected to the bottom end of the water collecting box, and one end of the drainage mechanism is located outside the soft soil base body.

[0016] By adopting the above technical solution, the drainage mechanism is arranged at the bottom of the water collecting box. When the water level in the water collecting box continues to rise, the drainage mechanism needs to be started to assist the water collecting box to drain water and discharge the water to a designated location.

[0017] Optionally, the drainage mechanism includes a water pump, a water pipe, a No. 1 conduit, a No. 2 conduit and a connecting pipe, and both ends of the bottom of the water collecting box are connected to the No. 1 conduits which are evenly spaced.

[0018] By adopting the above technical solution, when the water in the water collecting box needs to be drained, two sets of water pumps and water pipes can be set up so that the two sets of water pumps can work alternately to prevent the problem of one of the water pumps malfunctioning and failing to drain the water in time.

[0019] Optionally, a No. 2 conduit distributed at equal intervals is connected to the middle of the bottom end of the water collecting box, and a connecting pipe is fixed to the adjacent ends of the No. 1 conduit and the No. 2 conduit.

[0020] By adopting the above technical solution, by starting one of the water pumps on the soft soil foundation body, the water flow is guided from the middle or both ends of the water collecting box into the No. 1 conduit and the No. 2 conduit through the action of the water pump.

[0021] Optionally, both ends of the bottom of the connecting pipe are connected to a pumping pipe, and the pumping pipe runs through the inner side of the soft soil basic body. The pumping pipe is located outside the soft soil basic body. A pumping pump is provided above the soft soil basic body, and the pumping pump is connected to the pumping pipe.

[0022] By adopting the above technical solution, the water discharged from the No. 1 conduit and the No. 2 conduit enters the connecting pipe uniformly, and finally the water is lifted to the pump through the pumping pipe and discharged to the designated location.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The grouting layer is located on the inner side of the soft soil foundation body to reinforce the surface of the soft soil foundation body to prevent water on the surface layer from flowing into the inside of the soft soil foundation. At the same time, the grid is arranged above the water collection box to disperse the pressure of the soft soil foundation body on the water collection box. The prefabricated piles squeeze and support the soft soil foundation again. By arranging multiple reinforcement materials, the strength and deformation resistance of the soft soil foundation are enhanced; 2. By setting a No. 1 permeable layer and a No. 2 permeable layer, the soft soil foundation drainage has a hierarchical structure. The No. 1 permeable layer is made of a highly permeable polymer composite material, which can quickly penetrate and guide the water below the grouting layer 10 into the lower layer. The No. 2 permeable layer is set as a permeable gravel layer or a permeable geotextile, which guides the water to penetrate into the grouting layer again. The water collection box is made of permeable concrete. When the water reaches the water collection box 8, it enters the water collection box through the pores of the permeable concrete for collection. The layered setting of the permeable material enhances the water penetration capacity of the soft soil layer and optimizes the drainage effect. 3. The water level sensor monitors the moisture content inside the soft soil foundation in real time, and the earth pressure sensor monitors the deformation of the soft soil foundation and the pressure on the water collection box, providing a basis for adjusting the drainage strategy and reinforcement measures, achieving precise control and resource optimization of the construction process, and improving the quality and safety of the project. The prefabricated panels, water guide grooves and chamfers can not only help divert water to the water collection box, but also reinforce the soft soil foundation, improving the stability and drainage capacity of the soft soil foundation. In addition, a filter is laid above the water collection box to prevent fine particles in the soft soil base from penetrating into the permeable concrete and avoid destroying the pore structure of the permeable concrete. 4. By setting up two sets of water pumps and water pipes, the two sets of water pumps can work alternately to prevent the problem of one of the water pumps malfunctioning and failing to drain water in time. The setting of multiple drainage pipes ensures that the water can be evenly and quickly introduced into the water pipes. Finally, the water is lifted into the water pump through the water pipes and discharged to the designated location, which significantly improves the drainage efficiency, shortens the foundation treatment cycle, and reduces the consumption of materials and energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 is a schematic cross-sectional structural diagram of Example 1 of the present application; Figure 3 is a schematic diagram of the drainage mechanism structure of Example 3 of the present application; Figure 4 is a schematic cross-sectional structural diagram of a water collecting box according to Embodiment 1 of the present application; Figure 5 is a schematic cross-sectional structure diagram of a soft soil basic body according to Example 1 of the present application; Figure 6 is a schematic diagram of the filter structure of Example 2 of the present application; Figure 7 This is a schematic diagram of the cross-sectional structure of the first water-permeable layer in Example 1 of the present application; Figure 8 It is a schematic diagram of the three-dimensional structure of the prefabricated panel of Example 2 of the present application.

[0025] Explanation of the reference numerals in the accompanying drawings: 1. Soft soil foundation; 2. Precast piles; 3. Grouting pipe; 4. Grouting port; 5. No. 1 permeable layer; 6. Drainage mechanism; 601. Water pump; 602. Water pumping pipe; 603. No. 1 conduit; 604. No. 2 conduit; 605. Connecting pipe; 7. Positioning pin; 8. Water collecting box; 9. Grille; 10. Grouting layer; 11. No. 2 permeable layer; 12. Earth pressure sensor; 13. Water level sensor; 14. Water outlet; 15. Filter; 16. Precast board; 17. Water guide trough; 18. Chamfered portion. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 -Attached Figure 8 , further details of this application are given.

[0027] Example 1: Reference Figure 1 , Figure 2 , Figure 5 and Figure 7 A soft soil foundation reinforcement and treatment water collection and drainage device comprises a soft soil foundation body 1 and a water collection box 8, a grouting layer 10 is provided in the middle of the soft soil foundation body 1, a first permeable layer 5 and a second permeable layer 11 are provided inside the soft soil foundation body 1 near the top of the grouting layer 10, and the first permeable layer 5 is located above the second permeable layer 11, wherein the grouting layer 10 is located on the inner side of the soft soil foundation body 1, and the surface position of the soft soil foundation body 1 is reinforced to prevent water on the surface layer of the ground from flowing into the interior of the soft soil foundation, and at the same time, a grille 9 is arranged above the water collection box 8, and the grille 9 disperses the pressure of the soft soil foundation body 1 on the water collection box 8, thereby enhancing the strength and stability of the soft soil foundation.

[0028] Reference Figure 1-Figure 3 , Figure 5 and Figure 7, a plurality of prefabricated piles 2 are penetrated through the inner sides of the soft soil foundation body 1, the grouting layer 10, the first permeable layer 5 and the second permeable layer 11, a plurality of grouting ports 4 are opened on the inner side of the soft soil foundation body 1 near the grouting layer 10, a grouting pipe 3 is movably connected to the end of the grouting port 4 near the outside of the soft soil foundation body 1, and positioning nails 7 are arranged at equal intervals below the water collecting box 8. The prefabricated piles 2 squeeze and support the soft soil foundation again. By setting the first permeable layer 5 and the second permeable layer 11, the drainage of the soft soil foundation has layers. The material of the first permeable layer 5 is a highly permeable polymer composite material, which can quickly drain the water. The water quickly penetrates and guides the water below the grouting layer 10 into the lower layer. The second permeable layer 11 is set as a permeable gravel layer or a permeable geotextile, and the water collecting box 8 is made of permeable concrete. When the water reaches the water collecting box 8, it enters the water collecting box 8 through the pores of the permeable concrete and is collected. The grouting port 4 is used to inject cement slurry into the grouting layer 10. The grouting pipe 3 supports the top of the grouting port 4 to facilitate grouting after covering the top with soil. The setting of several positioning nails 7 under the water collecting box 8 increases the contact area between the water collecting box 8 and the soft soil basic body 1, which is beneficial to improve the stability of the water collecting box 8.

[0029] Example 2: Reference Figure 2-Figure 8 A water level sensor 13 is installed on the top of the inner cavity of the water collecting box 8, and soil pressure sensors 12 are arranged inside the two ends of the soft soil foundation body 1. Prefabricated plates 16 are arranged at equal intervals between the second permeable layer 11 and the grid 9, and the prefabricated plates 16 are located inside the soft soil foundation body 1. A water guide groove 17 is opened on the inner side of the prefabricated plate 16, and chamfered portions 18 are arranged at equal intervals at both ends of the prefabricated plate 16. A plurality of water outlets 14 are opened at the bottom of the water collecting box 8. A filter screen 15 is arranged near the top of the grid 9 of the water collecting box 8. The aperture size of the filter screen 15 is between 0.2mm-0.5mm. Water penetrates into the inner cavity of the water collecting box 8. The water level sensor 13 monitors the moisture content height inside the soft soil foundation in real time. The soil pressure sensor 12 monitors the deformation of the soft soil foundation and the pressure generated on the water collecting box 8, providing a basis for adjusting the drainage strategy and reinforcement measures. According to the invention, the prefabricated plate 16 is configured as an inverted triangle structure. When the prefabricated plate 16 is subjected to pressure exerted from above the soft soil foundation, the end of the prefabricated plate 16 will be inserted deeper downward, effectively dispersing the pressure borne by the soft soil foundation, preventing excessive settlement, and improving the shear strength of the soil. The sharp corner of the chamfered portion 18 is facing upward, and moisture can flow along the sharp corner and the inclined surface of the triangular plate. At the same time, the soil of the soft soil foundation is accumulated in the water guide groove 17, and the moisture therein can flow downward through the water guide groove 17 without being dispersed everywhere, thereby avoiding moisture retention. The chamfered portion 18 helps to form a larger friction contact with the surrounding soft soil, and while helping to divert moisture to the water collection box 8, it can also strengthen the soft soil foundation. By laying a filter screen 15 above the water collection box 8, fine particles of the soft soil base layer can be prevented from penetrating into the permeable concrete, thereby avoiding damage to the pore structure of the permeable concrete.

[0030] Example 3: Reference Figure 1-Figure 3 , Figure 5 and Figure 7 The bottom end of the water collecting box 8 is connected to a drainage mechanism 6, one end of the drainage mechanism 6 is located outside the soft soil basic body 1, the drainage mechanism 6 includes a water pump 601, a water pumping pipe 602, a No. 1 conduit 603, a No. 2 conduit 604 and a connecting pipe 605, both ends of the bottom of the water collecting box 8 are connected to the No. 1 conduit 603 distributed at equal intervals, the middle part of the bottom end of the water collecting box 8 is connected to the No. 2 conduit 604 distributed at equal intervals, the adjacent ends of the No. 1 conduit 603 and the No. 2 conduit 604 are fixed with a connecting pipe 605, both ends of the bottom of the connecting pipe 605 are connected to the water pumping pipe 602, and the water pumping pipe 602 runs through the inner side of the soft soil basic body 1, the water pumping pipe 602 is located outside the soft soil basic body 1, a water pump 601 is provided above the soft soil basic body 1, and the water pump 601 is connected to the water pumping pipe 602, the structure of the No. 1 conduit 603 is designed It is inclined, and the drainage mechanism 6 is set at the bottom of the water collecting box 8. When the water level in the water collecting box 8 continues to rise, it is necessary to start the drainage mechanism 6 to assist the water collecting box 8 to drain water. When the water in the water collecting box 8 needs to be discharged, by setting two groups of water pumps 601 and water pumping pipes 602, the two groups of water pumps 601 can work alternately to prevent the problem that one of the water pumps 601 fails and cannot drain water in time. By starting one of the water pumps 601 on the soft soil basic body 1, the water flow is guided from the middle or both ends of the water collecting box 8 into the No. 1 conduit 603 and the No. 2 conduit 604 through the action of the water pump 601. The water discharged from the No. 1 conduit 603 and the No. 2 conduit 604 is uniformly entered into the connecting pipe 605, and finally the water is lifted into the water pump 601 through the water pumping pipe 602, and the water is discharged to the designated location.

[0031] The implementation principle of the embodiment of the present application is as follows: the grouting layer 10 is located on the inner side of the soft soil foundation body 1, and the surface position of the soft soil foundation body 1 is reinforced to prevent the water on the surface layer of the ground from flowing into the inside of the soft soil foundation. At the same time, the grid 9 is arranged above the water collecting box 8. The water collecting box 8 should be prefabricated in advance. The grid 9 disperses the pressure of the soft soil foundation body 1 on the water collecting box 8 to enhance the strength and stability of the soft soil foundation. The prefabricated piles 2 squeeze and support the soft soil foundation again. By setting the No. 1 permeable layer 5 and the No. 2 permeable layer 11, the drainage of the soft soil foundation has a layered structure. The No. 1 permeable layer 5 is made of a highly permeable polymer composite material, which can quickly penetrate and guide the water below the grouting layer 10 into the lower layer. The No. 2 permeable layer 11 is set as a permeable gravel layer or a permeable geotextile. The water collecting box 8 is made of permeable concrete. When the water reaches the water collecting box 8, it enters the water collecting box 8 through the pores of the permeable concrete for collection. The grouting port 4 is used to inject cement slurry into the grouting layer 10. The grouting pipe 3 supports the top of the grouting port 4 to facilitate grouting. The arrangement of several positioning nails 7 below the water collecting box 8 increases the contact area between the water collecting box 8 and the soft soil foundation body 1, which is beneficial to improving the stability of the water collecting box 8. Water enters the inner cavity of the water collecting box 8 by infiltration. The water level sensor 13 monitors the moisture content height inside the soft soil foundation in real time. The soil pressure sensor 12 monitors the deformation of the soft soil foundation and the pressure generated on the water collecting box 8, providing a basis for adjusting the drainage strategy and reinforcement measures. The prefabricated plate 16 is set to an inverted triangle structure. When the prefabricated plate 16 is subjected to pressure exerted from above the soft soil foundation, the end of the prefabricated plate 16 will be inserted deeper downward, effectively dispersing the pressure on the soft soil foundation, preventing excessive settlement, and improving the shear strength of the soil. The sharp corners of the chamfered portion 18 are facing upward, and moisture can flow along the sharp corners and the inclined surface of the triangular plate. At the same time, the soil of the soft soil foundation is accumulated in the water guide groove 17, and the moisture therein can flow downward through the water guide groove 17 without being dispersed everywhere, thereby avoiding moisture retention. The chamfered portion 18 helps to form a larger friction contact with the surrounding soft soil, and while helping to divert moisture to the water collection box 8, it can also strengthen the soft soil foundation. By laying a filter screen 15 above the water collection box 8, fine particles of the soft soil base layer can be prevented from infiltrating into the permeable concrete, thereby avoiding In order to avoid damaging the pore structure of the permeable concrete, the drainage mechanism 6 is arranged at the bottom of the water collecting box 8. When the water level in the water collecting box 8 continues to rise, it is necessary to start the drainage mechanism 6 to assist the water collecting box 8 in draining water. When it is necessary to drain the water in the water collecting box 8, by setting two sets of pumps 601 and pumping pipes 602, the two sets of pumps 601 can work alternately to prevent the problem that one of the pumps 601 fails and cannot drain water in time. By starting one of the pumps 601 on the soft soil basic body 1, the water flow is guided from the middle or both ends of the water collecting box 8 into the No. 1 conduit 603 and the No. 2 conduit 604 through the action of the pump 601, and the water discharged from the No. 1 conduit 603 and the No. 2 conduit 604 enters the connecting pipe 605 uniformly.Finally, the water is lifted to the water pump 601 through the water pump pipe 602 and discharged to the designated location.

[0032] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water collection and drainage device for reinforcing a soft soil foundation, comprising a soft soil foundation body (1) and a water collection box (8), characterized in that: A grouting layer (10) is provided on the inner side of the soft soil basic body (1), the water collecting box (8) is arranged at the bottom of the soft soil basic body (1), a grid (9) is provided above the water collecting box (8), and a first permeable layer (5) and a second permeable layer (11) are provided inside the soft soil basic body (1) below the grouting layer (10), and the first permeable layer (5) is located above the second permeable layer (11).

2. The water collection and drainage device for reinforcing soft soil foundation according to claim 1 is characterized in that: A plurality of prefabricated piles (2) are inserted through the inner sides of the soft soil basic body (1), the grouting layer (10), the first permeable layer (5) and the second permeable layer (11), and a plurality of grouting ports (4) are provided on the inner side of the soft soil basic body (1) close to the grouting layer (10).

3. The water collection and drainage device for reinforcing soft soil foundation according to claim 2, characterized in that: A grouting pipe (3) is movably sleeved on one end of the grouting port (4) close to the outside of the soft soil basic body (1), and positioning pins (7) distributed at equal intervals are provided below the water collecting box (8).

4. The water collection and drainage device for reinforcing soft soil foundation according to claim 1, characterized in that: A water level sensor (13) is installed at the top of the inner cavity of the water collecting box (8), soil pressure sensors (12) are provided at both ends of the inside of the soft soil basic body (1), prefabricated plates (16) are provided at equal intervals between the second permeable layer (11) and the grid (9), and the prefabricated plates (16) are located inside the soft soil basic body (1), a water guide groove (17) is provided on the inner side of the prefabricated plates (16), and chamfered portions (18) are provided at equal intervals at both ends of the prefabricated plates (16).

5. The water collection and drainage device for reinforcing soft soil foundation according to claim 4, characterized in that: The bottom of the water collecting box (8) is provided with a plurality of water outlets (14), and the top of the water collecting box (8) close to the grille (9) is provided with a filter screen (15).

6. The water collection and drainage device for reinforcing soft soil foundation according to claim 5, characterized in that: The bottom end of the water collection box (8) is connected to a drainage mechanism (6), and one end of the drainage mechanism (6) is located outside the soft soil base body (1).

7. The water collection and drainage device for reinforcing soft soil foundation according to claim 6, characterized in that: The drainage mechanism (6) comprises a water pump (601), a water pump pipe (602), a No. 1 conduit (603), a No. 2 conduit (604) and a connecting pipe (605), and both ends of the bottom of the water collection box (8) are connected to the No. 1 conduits (603) distributed at equal intervals.

8. The water collection and drainage device for reinforcing soft soil foundation according to claim 7, characterized in that: The middle of the bottom end of the water collecting box (8) is connected to a second conduit (604) distributed at equal intervals, and a connecting pipe (605) is fixed to the adjacent end of the first conduit (603) and the second conduit (604).

9. The water collection and drainage device for reinforcing soft soil foundation according to claim 8, characterized in that: Both ends of the bottom of the connecting pipe (605) are connected to a water pumping pipe (602), and the water pumping pipe (602) passes through the inner side of the soft soil foundation body (1).

10. The water collection and drainage device for reinforcing soft soil foundation according to claim 9, characterized in that: The water pumping pipe (602) is located outside the soft soil basic body (1), a water pump (601) is provided above the soft soil basic body (1), and the water pump (601) is connected to the water pumping pipe (602).