CN113186900B - Carbon fiber electroosmotic chain type vertical reinforcement structure and its soft base treatment method - Google Patents

Abstract

The invention discloses a carbon fiber electroosmosis chain type vertical reinforcement structure and a processing method for its soft base. Including: wrapping the granular material with carbon fiber warp-knitted conductive mesh to form a net bag, connecting the net bag with carbon fiber strips to form a space regular tetrahedron structure, and the granular body material is recycled aggregate of construction waste; after fully stirring the regular tetrahedral structure, sink It is inserted into the vertical reinforcement body containing double-spiral rising carbon fiber strips and PVC drainage pipes; sand and gravel cushions are laid on the soft foundation to form a composite foundation, and the cushions are sand and gravel cushions for laying horizontal PVC drainage pipes; the connection is reinforced in the vertical direction The PVC drainage pipe and the horizontal PVC drainage pipe in the body constitute a complete drainage system; the double-spiral rising carbon fiber strip in the vertical direction strengthens the inner body and the regulated DC power supply is connected to form electroosmotic accelerated drainage; the soft foundation treatment method of the present invention It can accelerate the drainage rate of soft foundation, shorten the consolidation period, improve the bearing capacity of composite foundation, and has the advantages of environmental protection and simple construction.

Description

Carbon fiber electroosmotic chain type vertical reinforcement structure and its soft base treatment method

technical field

The invention relates to the technical field of soft base treatment, in particular to a carbon fiber electroosmosis chain type vertical reinforcement structure and a soft base treatment method thereof.

Background technique

With the rapid development of my country's national economy and the continuous increase in infrastructure construction by the state, the construction of high-rise buildings, highways and railways in my country has achieved rapid development. At the same time, the construction waste generated cannot be properly disposed of, causing environmental pollution; soft soil foundations The problem has become increasingly prominent and has become one of the key factors affecting project quality, construction period and project cost. In the treatment of soft soil foundation, it is necessary to drain and consolidate the foundation soil to make the foundation soil have a certain strength. The rigid pile composite foundation is often due to the excessive difference in the stiffness of the soil between the pile and the pile, and the foundation soil settles a lot after drainage and consolidation, which will cause The negative friction resistance of the pile body causes the failure of the rigid pile, especially when the pile body cannot penetrate deep and high water content foundations, the rigid pile treatment method cannot be used; Low, the pile body is prone to large lateral expansion, and the crushed stone filler is extruded laterally, which cannot play the role of foundation reinforcement. Although the injection of cement slurry into the crushed stone pile can improve the strength of the upper part of the crushed stone pile, it cannot deal with the deep part. Crushed stone and soil between piles, the treatment effect of grouting method is significantly different due to the difference in soil properties between piles, the quality control is relatively difficult, and the treatment cost is high; It only has the effect of drainage and consolidation, the treatment period is long, the treatment depth is limited, and the effect of improving the strength of soft soil foundation is limited. In general, although there are many methods for the treatment of soft soil foundations, the traditional methods mentioned above are used for reasons such as long construction period, high cost, difficult to control post-construction quality, and limited improvement of soft soil foundation strength. , the effect is not obvious in the process of dealing with deeper soft soil foundation.

SUMMARY OF THE INVENTION

The present invention solves the deficiencies of the conventional methods for processing soft soil foundations in the background technology; provides a method that can not only improve drainage efficiency, accelerate the consolidation of soft soil foundations, shorten the construction period, and reduce engineering costs, but also constrain the lateral direction of the reinforcing body in the vertical direction. The invention relates to a carbon fiber electroosmosis chain type vertical reinforcement structure and its soft foundation treatment method, which can expand, improve bearing capacity and reduce post-construction settlement.

For achieving the above object, the technical scheme provided by the invention is as follows:

In the first aspect, the present invention provides a carbon fiber electroosmosis chain-type vertical reinforcement structure, which is characterized by comprising: granular material, a plurality of carbon fiber warp-knitted conductive nets, a plurality of double-spiral carbon fiber strips, and a plurality of regulated DC power sources. Conductive wire, several PVC drainage pipes and sand and gravel cushions; the plurality of PVC drainage pipes include PVC drainage pipes arranged in a vertical direction and PVC drainage pipes arranged in a horizontal direction; the PVC drainage pipes arranged in a horizontal direction constitute a horizontal PVC drainage pipe network; the carbon fiber warp-knitted conductive net wraps the granular material to form a net pocket; the carbon fiber strips are connected with the net pocket to form a space regular tetrahedron frame structure; after the space regular tetrahedron structure is fully stirred, the The carbon fiber strips connected between the net pockets and the net pockets are intertwined with each other to form an interlocking whole (because the net pockets are connected by carbon fiber strips, the space regular tetrahedral structure is stirred, and the carbon fiber strips connected between the net pockets and the net pockets are intertwined with each other to form a A whole that meshes with each other); and then put it into the reinforcement hole of the reinforcement (since this structure is similar to a bored pile, the first step of construction is to drill a hole. After fully stirring the space regular tetrahedron structure, put it into the vertical direction. In the reinforcing body hole, after the vibration, it is put into the space regular tetrahedron structure occlusal body again, until the ground, forming a vertical reinforcing body structure), at the same time laying double-spiral rising carbon fiber strips as electrode materials, laying vertical PVC drainage pipes , as a drainage device in the reinforcement body; a layer of carbon fiber warp knitted conductive mesh is wrapped around the vertical reinforcement body (the carbon fiber warp knitted conductive mesh of the same material is used, but the location is different. A layer of carbon fiber warp knitted conductive mesh here refers to the vertical The wrapping carbon fiber warp knitted conductive net around the reinforcement body, and the formation of the net pocket carbon fiber warp knitted conductive net is a subordinate relationship, that is, the carbon fiber warp knitted conductive net in the net pocket is in the wrapped carbon fiber warp knitted conductive net on the periphery of the vertical reinforcement), so that the carbon fiber warp knitted conductive net in the net pocket guides The power grid is inside the wrapped carbon fiber warp-knitted conductive mesh on the periphery of the vertical reinforcement; the sand and gravel cushion is laid on the soft base, and the horizontal PVC drainage pipe network and the regulated DC power supply wire are also laid to make the vertical reinforcement in the reinforcement body. The directional PVC drainage pipe is connected with the horizontal PVC drainage pipe network to form a complete drainage system; the regulated DC power supply wire is connected with the carbon fiber strips spirally rising in the reinforcement body; the regulated DC power supply wire is connected with the DC power supply device , using a single anode, surrounded by cathodes.

In the second aspect, the present invention provides a carbon fiber electroosmosis chain type vertical direction reinforcement structure and a processing method for its soft base, characterized in that:

S1: wrap the granular material with a carbon fiber warp-knitted conductive mesh to form a mesh pocket;

S2: Connect the net bag into a space regular tetrahedron frame structure, after fully stirring, sink into the reinforcement body containing carbon fiber strips and vertical PVC drainage pipes;

S3: Lay sand and gravel cushions on soft soil foundations to form composite foundations;

S4: Connect the PVC drainage pipe in the vertical reinforcement body and the PVC drainage pipe in the sand and gravel cushion to form a drainage system;

S5: Connect the double-spiral carbon fiber strips in the vertical reinforcement body to the regulated DC power supply wire to form electroosmosis;

After the above steps, when the groundwater drops below the design water level, stop the direct current, and use the static load test to check the reinforcement effect. After the bearing capacity meets the design requirements, the upper engineering construction is carried out.

First, wrap the granular material with a carbon fiber warp-knitted conductive net to form a net pocket, connect the net pockets with carbon fiber chains to form a space regular tetrahedral frame structure, and then lay the carbon fiber warp-knitted conductive net on the inner wall of the steel sleeve; A light drilling machine is used to drill holes in the foundation. After the holes are formed, a steel sleeve with carbon fiber warp-knitted conductive mesh is laid on the inner wall. After fully stirring the regular tetrahedral frame structure connected with carbon fiber strips, it is sunk into the carbon fiber strips and vertical In the reinforcement hole of the PVC drainage pipe; secondly, lay a sand and gravel cushion on the soft soil foundation to form a composite foundation, and at the same time lay a horizontal PVC drainage pipe in the sand and gravel cushion to drain the horizontal PVC laid in the sand and gravel cushion. The pipe is connected with the PVC drainage pipe in the chain vertical reinforcement body to form a complete drainage system, so that the water in the chain vertical reinforcement structure can be quickly discharged; finally, the double helix in the chain vertical reinforcement body is discharged. The rising carbon fiber strip is connected with the regulated DC power supply wire to form electroosmosis. The connection method adopts the strategy of a single anode, and the anode is surrounded by cathodes; when the groundwater drops below the design water level, the DC power supply is stopped, and the static load test is used to check the reinforcement. After the bearing capacity meets the design requirements, the superstructure construction will be carried out.

The technical construction method of the above-mentioned carbon fiber electroosmosis chain type vertical direction reinforcement soft base treatment method, the main technical steps:

(1) The schematic diagram of the carbon fiber warp-knitted conductive mesh wrapping the granular material is shown in Figure 1, the granular material is wrapped with the carbon fiber warp-knitted conductive mesh to form a net pocket, and the carbon fiber chain is used to connect the net pocket to form a space regular tetrahedron frame structure;

(2) The schematic diagram of the structural arrangement of the carbon fiber warp-knitted conductive mesh in the vertical direction of the chain is shown in Figure 3. First, the carbon fiber warp-knitted conductive mesh is laid on the inner wall of the steel sleeve. The length of the reinforcing body is 100-200mm, and the ends of the carbon fiber warp knitted conductive mesh are connected together by mechanical engagement. The width of the carbon fiber warp knitted conductive net is 100-200 mm greater than the circumference of the chain-type vertical reinforcement body, and the ends of the carbon fiber knitted conductive net are connected together by mechanical clinching. Secondly, use light drilling equipment to drill holes, clear the holes and check the quality of the holes, sink the steel sleeve, lay the carbon fiber strips of the double-spiral rising structure and the vertical PVC drainage pipes, and connect the four sides of the front and the four sides connected by the carbon fiber strips in a chain. After the body frame structure is fully stirred, sink into the granular material that increases the design height of the vertical reinforcing body structure each time as required, and vibrate the vibration equipment. Up to the ground, a chain-type vertical reinforcement structure is formed. The deviation of the central position of the chain-type vertical reinforcement structure should not exceed 20mm. The granular aggregate has a hard texture, a certain strength, good water stability, not easy to weathering and good gradation. The mud content is less than 5% and strictly controlled. The pull-up height of the steel sleeve;

(3) Lay sand and gravel cushions on soft soil foundations to form composite foundations, coordinate deformation, reduce foundation settlement, and lay horizontal PVC drainage pipe networks at the same time as sand and gravel cushions are laid. The sand and gravel cushion shall be geo-reinforced sand and gravel material, and the horizontal PVC drainage pipe groove shall be reserved according to the design requirements. Coarse sand cushion shall be laid in the groove first, and then the horizontal PVC drainage pipe shall be lowered to connect the PVC drainage pipe and its auxiliary components. A network is formed, in which the thickness of the sandstone cushion is 400-500mm. The back-laying method is adopted. The bottom layer is first laid, compacted and leveled, then the medium-coarse sand cushion is laid in the gravel, and finally the medium-coarse sand cushion is laid. , the sand cushion laying is completed. The particle size is 20-50mm, and the mud content in the sandstone cushion is not more than 5%;

(4) Connect the horizontal PVC drainage pipe in the sandstone cushion with the vertical PVC drainage pipe in the chain-type vertical direction reinforcement body to form a complete drainage system, so that the water in the chain-type vertical direction reinforcement body can be quickly discharge. , Connect the end of the horizontal PVC drainage pipe reserved in the sandstone cushion with the vertical direction PVC drainage pipe in the chain-type vertical reinforcement body, backfill the groove, compact and level, and the horizontal PVC drainage in the sandstone cushion The pipe network, the vertical PVC drainage pipe and its auxiliary components in the chain-type vertical reinforcement body constitute a complete drainage system;

(5) Connect the double-spiral carbon fiber strips in the chain-type vertical reinforcement with the regulated DC power supply wire (voltage is 30-60V) to form electroosmosis. The connection adopts the strategy of a single anode, and the anode is surrounded by cathodes. Turn on the regulated DC power supply, output DC power, and adjust the intermittent duration of the regulated DC power supply and the size of the electromotive force according to the requirements of the drainage rate and the amount of water content;

(6) After the above steps, when the groundwater drops below the design required water level, stop supplying direct current, and use a static load test to test the performance of a chain-type vertical reinforcement structure based on carbon fiber electroosmosis technology and a soft foundation treatment method. Reinforcement effect, after the bearing capacity meets the design requirements, the superstructure construction will be carried out.

The beneficial effects and advantages of the present invention are as follows:

The invention has the advantages of the vertical reinforcement composite foundation and the electroosmotic treatment of the soft soil foundation, realizes the integrated structure of the drainage consolidation of the soft foundation and the reinforcement in the vertical direction, and achieves one step in place. The higher treatment effect greatly improves the penetration efficiency compared with ordinary drainage in accelerating the drainage of soft soil; the structure of the reinforcement in the vertical direction is porous, which is conducive to accelerating the drainage rate of electroosmosis. Seepage drainage, and has the function of restraining the lateral expansion of the vertical reinforcement structure, improving the bearing capacity. It is applied to large-area weak foundations with short construction period, deep soft soil, high settlement and bearing capacity requirements, such as soft soil foundation treatment of expressways, railways and airports. Specifically, such as:

1. The filler of the chain-type vertical reinforcement structure is made of construction waste recycled aggregate. The mechanical properties of construction waste recycled aggregate and crushed stone are almost the same. While meeting the quality requirements of the project, the secondary use of construction waste not only The project cost is reduced, and the environment pollution by construction waste is avoided.

2. The granular material is wrapped with carbon fiber warp-knitted conductive mesh to form a net pocket, which has a constraining effect on the granular material. The carbon fiber chain is used to connect the net pocket into a tetrahedral frame structure. After sufficient regular tetrahedral frame structure, The regular tetrahedral frame structure is interlocked to form a whole structure, which increases the integrity of the carbon fiber warp knitted conductive mesh to wrap the granular material, reduces the lateral expansion, and the granular material has a large porosity, which is conducive to the freedom of the soft soil foundation. Water drains quickly.

3. Carbon fiber is a very stable material. Carbon fiber strips are used as electrode materials. Under the condition of electrification, carbon fiber strips do not undergo electrolysis; to avoid the corrosion of electrode materials during the electroosmosis process, the electrode electrolysis produces colloid, which effectively solves the problem of adding Electroosmosis of a certain chemical solution produces colloid and metal electrode corrosion, which affects the problem of later drainage rate and avoids the problem that the chemical solution is discharged during the drainage process, the electrolyte is diluted, and the electroosmosis rate is weakened.

4. The strength of the carbon fiber warp-knitted conductive mesh is high, which constrains the horizontal expansion of the chain-type vertical reinforcement structure and improves the bearing capacity of the chain-type vertical reinforcement structure. The carbon fiber warp knitted conductive mesh has excellent corrosion resistance and is not easy to be corroded, and can effectively restrain the chain-type vertical reinforcement structure for a long time.

5. The carbon fiber material has good electrical conductivity, low resistivity, and generates very little heat, which will not cause power consumption, and uses intermittent direct current, which can be determined according to the actual construction period. During this period of direct current, not only electric energy can be saved, but also the pore water pressure in the foundation soil can be dissipated, the effective stress can be increased, the saturated soil body can be consolidated, and the bearing capacity of the foundation soil can be improved.

6. The carbon fiber strip in the chain-type vertical reinforcement structure is connected to the regulated DC power supply. The connection method adopts a single anode vertical reinforcement structure, and the anode vertical reinforcement structure is surrounded by cathodes. There are more aqueous solutions with cations in free water, and the water surface of the cathode is always higher than that of the anode. The strategy of one anode is adopted. Under the same energy consumption, the strategy of single anode is adopted to minimize the groundwater in the soft soil foundation and make the soft soil more stable. The groundwater in the foundation drops effectively and quickly, thereby improving drainage efficiency.

7. The electroosmosis method for strengthening the soft soil foundation has the disadvantages of long treatment period and limited improvement of the strength of the soft soil foundation. The electroosmosis method combined with the chain vertical reinforcement structure can not only shorten the treatment period, but also make up for the limited strength of the soft soil foundation treated by the electroosmosis method because the chain vertical reinforcement has a certain bearing capacity.

8. No chemical solution is added in the electroosmosis process, and no polluting gas is generated, which will not pollute the soil, and is environmentally friendly.

To sum up, the invention has the advantages of accelerating the drainage rate of soft soil foundation, shortening the consolidation period, improving the bearing capacity of the chain-type vertical reinforcing body, environmental protection, and simple construction. The invention is used for processing deep soft soil foundations in low-lying river valley areas, and has technical and economic advantages. While ensuring that the bearing capacity of the foundation meets the design requirements, it shortens the consolidation time of the soft soil foundation, shortens the construction period, and reduces equipment rental funds. At present, there is no report of a chain-type vertical reinforcement structure and a soft foundation treatment method based on carbon fiber electroosmosis technology. The present invention is mainly applied to large areas with short construction period, deep soft soil and high requirements. Soft ground, such as highway, railway, airport soft ground treatment.

Description of drawings

Fig. 1 is based on the chain connection carbon fiber warp knitted conductive net wrapping granular material schematic diagram of the present invention;

2 is a schematic cross-sectional view of the carbon fiber warp-knitted conductive mesh wrapped granular material 1-1 based on the present invention;

3 is a schematic diagram of the structural arrangement of the vertical direction reinforcement of the carbon fiber warp-knitted conductive mesh based on the present invention;

FIG. 4 is a schematic diagram of the connection of a chain-type vertical reinforcement electrode based on the present invention;

5 is a schematic diagram of the layout of the PVC drainage pipe network based on the present invention;

6 is a schematic cross-sectional view of a chain-type vertical reinforcement structure based on the present invention;

Fig. 7 is the concrete construction drawing of the present invention;

FIG. 8 is a detailed structural view of the chain-type vertical reinforcement of the present invention.

In the picture: 1. Particulate material, 2. Carbon fiber warp-knitted conductive mesh, 3. Carbon fiber strip, 4. Voltage-stabilized DC power supply wire, 5. Reinforcing body, 5-1, Cathode reinforcement, 5-2, Anode reinforcement , 6, PVC drainage pipe, 7, gravel cushion, 8, soil between piles.

Detailed ways

The solution of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments.

Example 1

The concrete construction steps of the carbon fiber electroosmosis chain type vertical direction reinforcement soft base treatment method in this embodiment:

S1: Chain connection of carbon fiber warp-knitted conductive mesh to wrap the granular material is shown in Figure 1. The granular material 1 is wrapped with carbon fiber warp-knitted conductive mesh 2 to form a net pocket, and carbon fiber strips 3 are chained to connect the net pocket to form a space positive Tetrahedral frame structure, granular material 1 is recycled aggregate of construction waste;

S2: Schematic diagram of the structural arrangement of the carbon fiber warp-knitted conductive mesh chain-type vertical reinforcement body as shown in Figure 3, the length of the carbon fiber warp-knitted conductive mesh 2 is 100-200mm greater than the chain-type vertical direction reinforcement body length, and the carbon fiber warp-knitted conductive mesh is mechanically engaged. Grid 2 ends are connected together. The width of the carbon fiber warp knitted conductive mesh 2 is greater than the perimeter of the chain-type vertical reinforcement by 100-200mm. The ends of the carbon fiber warp knitted conductive mesh 2 are connected together by mechanical occlusion to form a cylindrical shape and the carbon fiber warp knitted conductive mesh 2 is laid on the steel sleeve. on the inner wall of the cylinder;

S3: Use light drilling equipment to drill, clear the holes and check the quality of the holes, lay the steel sleeve of the carbon fiber warp-knitted conductive mesh 2 on the inner wall, and fully stir the space regular tetrahedron frame structure connected by carbon fiber strips 3 chains. , sink the granular material 1 of the design height that makes the vertical reinforcement structure rise each time as required, and lay the carbon fiber strips 3 of the double-spiral rising structure and the PVC in the vertical direction while sinking the granular material 1 The drainage pipe and the vibration equipment vibrate. After the vibration is compacted, the steel sleeve is slowly pulled out, and the above operations are repeated until the ground is reached, forming a chain-type vertical reinforcement structure. The deviation of the central position of the chain-type vertical reinforcement structure should not exceed 20mm. The aggregate of granular body 1 has a hard texture, certain strength, good water stability, not easy to weathering and good gradation. The mud content is less than 5%. Control the pull-up height of the steel sleeve;

S4: Lay the sand and gravel cushion 7 on the weak soil foundation to form a composite foundation, coordinate the deformation, reduce the foundation settlement, and lay the horizontal PVC drainage pipe 6 pipe network at the same time as the sand and gravel cushion 7 is laid. Laying sand and gravel cushion 7 is a geo-reinforced sand and gravel material. According to the design requirements, reserve a groove for horizontal PVC drainage pipe 6. First lay a coarse sand cushion in the groove, and then run into the horizontal PVC drainage pipe 6 and connect the horizontal PVC drainage pipe. 6 and its ancillary components form a network, and reserve the connection to the vertical direction of the PVC drainage pipe 6 joint, of which the thickness of the sand and gravel cushion 7 is 500mm, and the 150mm thick bottom layer is first laid by the retreat method, and then 150mm thick is laid after tamping and leveling. Thick gravel and medium-coarse sand cushion, and finally lay 200mm thick cladding gravel and medium-coarse sand cushion. After tamping and scraping, the sand cushion 7 is laid. The particle size is 20-50mm, and the mud content in the sandstone cushion layer 7 is not more than 5%;

S5: Connect the pipe network of the horizontal PVC drainage pipe 6 in the sandstone cushion 7 with the vertical PVC drainage pipe 6 in the chain-type vertical direction reinforcement body to form a complete drainage system, so that the chain-type vertical direction reinforcement body is The water drains quickly. Connect the joints of the horizontal PVC drainage pipes 6 reserved in the gravel cushion 7 with the vertical PVC drainage pipes 6 in the chain-type vertical reinforcement body, and the horizontal PVC drainage pipes 6 in the gravel cushion 7 The vertical direction PVC drainage pipe 7 and its auxiliary components in the chain-type vertical direction reinforcement body constitute a complete drainage system;

S6: Connect the carbon fiber strip 3 at the top of the chain-type vertical reinforcement with the double-spiral riser and the regulated DC power supply wire 4 (voltage is 30-60V) to form electroosmosis. The connection adopts a single anode, and the anode is surrounded by cathodes. , pay attention to the connection between the positive and negative poles of the regulated DC power supply and the carbon fiber strip 3 on the top of the chain-type vertical reinforcement body. After the connection is completed, turn on the regulated DC power supply and output DC power. How much to adjust the power-on interruption duration and electromotive force of the regulated DC power supply;

S7: After the above steps, when the groundwater drops below the design water level, turn off the power supply, stop the direct current supply, and use the static load test to check the reinforcement effect. After the bearing capacity meets the design requirements, the upper engineering construction will be carried out.

In the invention, the carbon fiber warp-knitted conductive net is used to wrap the recycled aggregate of construction waste to form a net pocket, the net pockets are connected in a chain to form a space regular tetrahedron frame structure, and after the regular tetrahedron frame structure is fully stirred, the space regular tetrahedron frame structure forms an interlocking chain The overall structure is improved, and the integrity is improved. Under the same energy consumption, the strategy of single anode is adopted to minimize the groundwater in the soft soil foundation, so that the groundwater in the soft soil foundation can be effectively and rapidly decreased, thereby improving the drainage efficiency and accelerating the consolidation.

The above-mentioned embodiments are merely examples to illustrate the technical solutions of the present invention. This embodiment provides a carbon fiber electroosmosis chain-type vertical reinforcement structure and a method for treating its soft foundation, which can not only accelerate the consolidation and drainage efficiency of soft-soil foundations, shorten the construction period, reduce the project cost, but also restrain the chain-type vertical reinforcement structure. The lateral expansion of the reinforcement body in the straight direction increases the bearing capacity and reduces the settlement after construction.

Claims (10)

1. A carbon fiber electroosmosis chain type vertical direction reinforcement structure is characterized in that: comprising granular material (1), some carbon fiber warp-knitted conductive nets (2), some carbon fiber strips (3) that rise in double helix, some A regulated DC power supply wire (4), a number of PVC drainage pipes (6) and a sand and gravel cushion (7); The plurality of PVC drainage pipes (6) include a PVC drainage pipe (6) arranged in a vertical direction and a PVC drainage pipe (6) arranged in a horizontal direction; the plurality of PVC drainage pipes (6) arranged in a horizontal direction constitute a horizontal PVC drainage pipe network; The carbon fiber warp-knitted conductive net (2) wraps the granular material (1) to form a net pocket; the carbon fiber strips (3) are connected to the net pocket to form a frame structure of a regular tetrahedron; After stirring, the carbon fiber strips connected between the net pockets are intertwined to form an interlocking whole; they are then placed into the reinforcement holes of the reinforcement body (5), and the carbon fiber strips (3) that are double-spiral are laid simultaneously. As the electrode material, a vertical PVC drainage pipe (6) is laid as a drainage device in the reinforcement body (5); The carbon fiber warp knitted conductive net (2) is inside the wrapped carbon fiber warp knitted conductive net (2) on the periphery of the vertical reinforcement (5); The sand and gravel cushion (7) is laid on the soft foundation, and a horizontal PVC drainage pipe network and a regulated DC power supply wire (4) are also laid, so that the vertical PVC drainage pipes (6) in the reinforcement (5) are laid. ) is connected with the PVC drainage pipe network in the horizontal direction to form a complete drainage system; the stabilized direct current power supply wire (4) is connected with the carbon fiber strip (3) spirally rising in the reinforcing body (5); the stabilized direct current power supply The wire (4) is communicated with the DC power supply device, and adopts the mode of a single anode surrounded by cathodes. 2. a method utilizing carbon fiber electroosmosis chain type vertical direction reinforcement structure as claimed in claim 1 to process soft base, it is characterized in that: comprise the steps: S1: wrap the granular material with a carbon fiber warp-knitted conductive mesh to form a mesh pocket; S2: Connect the net bag into a space regular tetrahedron frame structure, after fully stirring, sink into the reinforcement body containing carbon fiber strips and vertical PVC drainage pipes; S3: Lay sand and gravel cushions on soft soil foundations to form composite foundations; S4: Connect the PVC drainage pipe in the vertical reinforcement body and the PVC drainage pipe in the sand and gravel cushion to form a drainage system; S5: Connect the double-spiral carbon fiber strips in the vertical reinforcement body to the regulated DC power supply wire to form electroosmosis; After the above steps, when the groundwater drops below the design water level, stop the direct current, and use the static load test to check the reinforcement effect. After the bearing capacity meets the design requirements, the upper engineering construction is carried out. 3. the method that utilizes carbon fiber electroosmosis chain type vertical direction reinforcement structure to process soft foundation according to claim 2, is characterized in that: In the step S1, the granular material is construction waste recycled aggregate; In the step S2, the vertical reinforcement is wrapped with a carbon fiber warp-knitted conductive mesh; In the step S3, the sand and gravel cushion is a geotextile reinforced sand and gravel material; In the step S4, the vertical reinforcing body and the PVC drainage pipe laid in the sand and gravel cushion are connected; In the step S5, a single anode is used for connection, and the surrounding are all cathodes. 4. the method for utilizing carbon fiber electroosmosis chain type vertical direction reinforcement structure to process soft foundation according to claim 2 or 3, is characterized in that: The step S1 is specifically: wrapping the granular material with a carbon fiber warp-knitted conductive mesh to form a net pocket, and connecting the net pockets with carbon fiber chains to form a regular tetrahedral frame structure. 5. the method for utilizing carbon fiber electroosmosis chain type vertical direction reinforcement structure to process soft foundation according to claim 2 or 3, is characterized in that: The step S2 is specifically as follows: first, laying the carbon fiber warp-knitted conductive mesh on the inner wall of the steel sleeve, sinking it into the pre-perforated vertical reinforcement body, and laying the carbon fiber strip of the double-spiral ascending structure and the vertical direction PVC drainage pipe; Secondly, after fully stirring the space tetrahedral frame structure connected by carbon fiber strips, it sinks into the vertical reinforcement body to form a chain type vertical direction reinforcement structure; the center position deviation of the chain type vertical direction reinforcement structure does not exceed 20mm , The granular aggregate has hard texture, high strength, good water stability, not easy to weathering and good gradation, and the mud content is less than 5%, and the pulling height of the steel sleeve is strictly controlled. 6. the method that utilizes carbon fiber electroosmosis chain type vertical direction reinforcement structure to process soft foundation according to claim 4, is characterized in that: The step S2 is specifically as follows: first, laying the carbon fiber warp-knitted conductive mesh on the inner wall of the steel sleeve, sinking it into the pre-perforated vertical reinforcement body, and laying the carbon fiber strip of the double-spiral ascending structure and the vertical direction PVC drainage pipe; Secondly, after fully stirring the regular tetrahedral frame structure connected by carbon fiber strips, it sinks into the vertical reinforcement body to form a chain type vertical direction reinforcement structure; the center position deviation of the chain type vertical direction reinforcement structure should not exceed 20mm , The granular aggregate has hard texture, high strength, good water stability, not easy to weathering and good gradation, and the mud content is less than 5%, and the pulling height of the steel sleeve is strictly controlled. 7. The method according to claim 2, 3 or 6, wherein the carbon fiber electroosmosis chain-type vertical reinforcement structure is used for processing a soft foundation, wherein the step S3 is specifically: laying sand and gravel on the soft foundation The cushion layer forms a composite foundation, coordinates deformation, reduces foundation settlement, and lays a horizontal PVC drainage pipe network at the same time as laying the sand and gravel cushion; It is 400-500mm, the particle size is 20-50mm, and the mud content in the sandstone cushion is not more than 5%. 8. The method for treating a soft foundation with a carbon fiber electroosmosis chain-type vertical reinforcement structure according to claim 2, 3 or 6, characterized in that: the step S4 is specifically: laying the sandstone cushion layer The connection between the horizontal PVC drainage pipe network and the PVC drainage pipes in the chain-type vertical reinforcement structure constitutes a complete drainage system, so that the free water in the chain-type vertical reinforcement structure can be quickly discharged. 9 . The method according to claim 7 , wherein the step S4 is specifically: a PVC drain pipe laid in the sand and gravel cushion, Connect the horizontal PVC drainage pipe laid in the sand and gravel cushion with the PVC drainage pipe in the chain-type vertical direction reinforcement to form a complete drainage system, so that the free water in the chain-type vertical direction reinforcement structure can be quickly discharged. 10. The method according to claim 2 or 3 or 6 or 9 for treating a soft foundation with a carbon fiber electroosmosis chain-type vertical reinforcement structure, wherein the step S5 is specifically: the chain-type vertical direction The carbon fiber strips in the reinforcement are connected with the regulated DC power supply wire, and the connection method adopts the strategy of a single anode, and the anode is surrounded by cathodes; the voltage is 30-60V; the output current of the regulated DC power supply is based on the requirements of the drainage rate and the water content. How much to adjust the duration of the regulated DC power supply interruption and the size of the electromotive force.

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