A high-efficiency soft soil foundation reinforcement device for treating flow state mud and a construction method thereof

Abstract

The application discloses a high-efficiency soft soil foundation reinforcing device for treating flow state mud and a construction method thereof. The device comprises a sleeve pipe, a sleeve pipe cover arranged at the top of the sleeve pipe, a connecting mechanism arranged in the sleeve pipe, a conical head fixedly connected to the bottom of the sleeve pipe, and a plurality of hinged flaps arranged in the conical head. Any two adjacent flaps are slidably connected. The conical head is simple to prepare, is inserted into the soil in advance to avoid the soil compaction effect from causing the curing body to tilt, has good sealing performance, can be quickly opened when pulled out, is convenient for construction, and can be repeatedly used. The device is assembled, the curing body is formed by pouring the treated mud into the device, the flow state mud can be accommodated, the foundation bearing capacity can be significantly improved, and the device can replace high-performance building materials such as sand and stone. The device can be batched into the soil in advance during construction, only the improved mud needs to be poured into the device during construction, the construction and material costs are saved, and the device has the characteristics of high economy, high efficiency, green and environmental protection.

Description

Technical Field

[0001] This invention relates to the field of foundation treatment technology, and in particular to a soft soil foundation reinforcement device and its construction method that efficiently treats fluid mud. Background Technology

[0002] In recent years, a large amount of waste fluid mud has been generated during the construction of soft soil foundations in coastal and riverside areas. Therefore, it is an urgent problem to solve the problem of achieving green treatment and efficient resource utilization of waste fluid mud and using it to effectively treat soft soil foundations.

[0003] Currently, the main technologies for treating soft soil foundations include pile foundation method, drainage and bonding method, and soil replacement method. However, these methods have a long construction period and are not economical enough, and cannot quickly and efficiently solve the problem of resource utilization of fluid mud.

[0004] An existing patent discloses an automatic opening and closing valve-shaped pile tip with application number CN201821885575.6, comprising a pile tip tube, a left leaf, a right leaf, and two cutting edges. The two cutting edges are respectively connected to opposite sides of the outer surface of the pile tip tube, with the lower ends of both cutting edges extending beyond the lower end of the pile tip tube. A support shaft connects the portions of the two cutting edges extending beyond the lower end of the pile tip tube. The left and right leaflets are respectively hinged to the support shaft. When the lower end of the pile tip tube is facing downwards, the left and right leaflets can freely fall and rotate under their own weight to open the lower end of the pile tip tube. Alternatively, the left and right leaflets can automatically rotate under the reaction force of the surface soil to form a plate and close the lower end of the pile tip tube. However, this patent has a complex structure, is inconvenient to manufacture, requires high operational skills during construction, and is not quick or efficient.

[0005] Therefore, there is an urgent need for a new type of efficient soft soil foundation reinforcement device and its construction method for handling fluid mud to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a soft soil foundation reinforcement device and its construction method that can efficiently handle fluid mud, so as to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following solution: The present invention provides a soft soil foundation reinforcement device for efficiently treating fluid mud, comprising a sleeve, a sleeve cap at the top of the sleeve, a connecting mechanism inside the sleeve, and a conical head fixedly connected to the bottom of the sleeve. The conical head includes several hinged flaps that are hinged to the sleeve, and any two adjacent flaps are slidably connected.

[0008] Preferably, the valve is hinged to the outer wall of the sleeve via a connecting seat.

[0009] Preferably, one side of the valve is provided with a groove, and the side of the valve away from the groove is provided with a protrusion, and the adjacent groove and the protrusion are adapted to each other.

[0010] Preferably, the sleeve cap is detachably connected to the sleeve, and the diameter of the sleeve cap is larger than the diameter of the sleeve.

[0011] Preferably, the connecting mechanism includes a ring disposed inside the sleeve, the ring being disposed at the top of the sleeve, and a plurality of connecting steel bars being fixedly connected at equal intervals around the outer circumference of the ring, the side of the connecting steel bars away from the ring being fixedly connected to the inner wall of the sleeve, and the ring being connected to a support member by wire.

[0012] Preferably, the support member comprises a plurality of reinforcing materials connected at equal intervals to the ring.

[0013] Preferably, the bottom mesh pocket of the reinforcing material is filled with a small amount of soil, rocks, and waste materials that are relatively large in volume at the construction site.

[0014] A construction method for a soft soil foundation reinforcement device that efficiently handles fluidized mud includes the following steps:

[0015] a. Fabricate the treatment device and assemble it in the factory before construction.

[0016] b. Construction of the treatment device: The treatment device is driven into the soil using external equipment and slurry is injected; the connection between the ring and the reinforcing material is cut off.

[0017] c. Pull out the treatment device. After the mud has initially solidified, pull out the treatment device.

[0018] Preferably, the method for removing the treatment device in step c is the vibration pile extraction method.

[0019] This invention discloses the following technical effects: the valves slide and connect sequentially to form a spiral valve-type conical head; the casing cap tightly wraps around the casing; the casing is pre-inserted into soft soil, avoiding the soil squeezing effect caused by direct insertion of prefabricated components; by injecting fluidized mud into the casing to prefabricate components, a highly efficient and green method for treating soft soil foundations is achieved; at the same time, the casing can be reused, possessing both practical and economic advantages; the connecting mechanism inside the casing increases the strength of the device; when the casing is inserted into soft soil, the valves squeeze against each other, ensuring both the sealing and strength of the conical head; when the casing is pulled out, the force on the outer side of the conical head decreases while the force on the inner side increases, allowing the spiral valves to open quickly, thereby improving the extraction efficiency.

[0020] The conical head is designed as a spiral flap, which is easy to prepare. Pre-insertion into the soil can avoid soil squeezing effect, and it has good sealing performance. It can be quickly opened when pulled out, which is convenient for construction. The prefabricated device uses in-situ poured mud to form a solidified body. The combination of the device and the solidified body can absorb a large proportion of mud and replace a large proportion of high-performance building materials such as sand and gravel. It is an economical and efficient treatment of soft soil foundation. The construction method of this device is simple. The device only needs to be prefabricated in the factory. On the construction site, the device only needs to be driven into the soil and filled with fluid mud, without drilling. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the soft soil foundation reinforcement device for efficiently treating fluid mud according to the present invention;

[0023] Figure 2 This is a top view inside the casing;

[0024] Figure 3 This is a schematic diagram of the conical head structure;

[0025] Figure 4 This is a schematic diagram of the connection structure between the groove and the protrusion;

[0026] The components are: 1. Sleeve cap; 2. Ring; 3. Connecting steel bar; 4. Reinforcing material; 5. Sleeve; 6. Conical head; 7. Connecting seat; 8. Groove; 9. Protrusion; 10. Waste material. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figure 1-4The present invention provides a soft soil foundation reinforcement device for efficiently treating fluid mud, including a sleeve 5, a sleeve cover 1 at the top of the sleeve 5, a connecting mechanism inside the sleeve 5, and a conical head 6 fixedly connected to the bottom of the sleeve 5. The conical head 6 includes several hinged flaps that are hinged to the sleeve 5, and any two adjacent flaps are slidably connected.

[0030] The preferred valve has four valves, which slide and connect sequentially to form a spiral valve-type conical head 6. The sleeve cap 1 tightly wraps around the sleeve 5, and the sleeve 5 is pre-inserted into the soft soil to avoid the soil squeezing effect caused by direct insertion of the precast component. By injecting fluid grout into the sleeve 5 to precast the component, an efficient and green method for treating soft soil foundations is achieved. At the same time, the sleeve 5 can be reused, which has the dual advantages of practicality and economy. The connecting mechanism inside the sleeve 5 can increase the strength of the device. When the sleeve 5 is inserted into the soft soil, the valves squeeze each other, which ensures both the sealing and strength of the conical head 6. When the sleeve 5 is pulled out, the force on the outside of the conical head 6 decreases and the force on the inside increases, so that the spiral valve can open quickly, thereby improving the extraction efficiency.

[0031] The design was further optimized so that the valve and the outer wall of the cannula 5 are hinged together by the connecting seat 7.

[0032] The design is further optimized by providing a groove 8 on one side of the valve and a protrusion 9 on the side of the valve away from the groove 8, with adjacent grooves 8 and protrusions 9 being compatible.

[0033] All four flaps are curved and have grooves 8 and protrusions 9 inside. The protrusions 9 can be inserted into the grooves 8 of the previous flap in turn to form a spiral flap-type conical head 6.

[0034] The design is further optimized so that the sleeve cap 1 and the sleeve 5 are detachably connected, and the diameter of the sleeve cap 1 is larger than the diameter of the sleeve 5, so that the sleeve cap 1 and the sleeve 5 fit together tightly.

[0035] The scheme is further optimized. The connecting mechanism includes a ring 2 set inside the sleeve 5. The ring 2 is set at the top inside the sleeve 5. Several connecting steel bars 3 are fixedly connected at equal intervals on the outer circumference of the ring 2. The side of the connecting steel bars 3 away from the ring 2 is fixedly connected to the inner wall of the sleeve 5. The ring 2 is connected to the support member by iron wire.

[0036] The design was further optimized so that the support components include several reinforcing materials 4 that are connected at equal intervals to the ring 2.

[0037] The ring 2 is connected to the reinforcing material 4 by iron wire. Adding the reinforcing material 4 can better increase the strength of the sleeve 5. The reinforcing material 4 has the advantages of low cost, light weight and quick processing. The ring 2 mainly serves to fix the reinforcing material 4. The combination of the ring 2 and the reinforcing material 4 is easy to prepare. After the mud is poured and formed, a combination of the reinforcing material 4 inside the solidified body is formed, which can better improve the strength of the solidified body and the bearing capacity of the foundation.

[0038] The design was further optimized by incorporating a mesh bag at the bottom of the reinforcing material, containing a small amount of larger waste material 10. The waste material 10, through its own weight, ensures that the reinforcing material 4 maintains a certain degree of verticality and does not sway significantly. The waste material 10 can be sourced locally on the construction site, offering advantages in terms of green economy.

[0039] A construction method for a soft soil foundation reinforcement device that efficiently handles fluidized mud includes the following steps:

[0040] a. Fabricate the treatment device and assemble it in the factory before construction. First, prefabricate the conical head 6, sleeve 5, sleeve cover 1 and ring 2 in the factory. Connect the conical head 6, sleeve 5 and ring 2 and the above parts. Then bind the reinforcing material 4 to the ring 2 and finally cover it with the sleeve cover 1.

[0041] b. Construction of the treatment device: Lift the casing 5 and drive it into the soil using a pile driver. When the casing 5 is pressed down, the conical head 6 can be spiraled more tightly by the external force. After the pile driving is completed, open the casing cover 1 and pour mud. Cut off the connection between the ring 2 and the reinforcing material 4.

[0042] c. Pull out the treatment device. After the mud is formed, pull out the treatment device. After the mud is formed, pull out the casing 5. The pile is pulled out by vibration. When pulling out the pile, the spiral conical head 6 is loosened by force, so that the device can be pulled out smoothly.

[0043] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A highly efficient soft soil foundation reinforcement device for treating fluidized mud, characterized in that: Includes a sleeve (5), the top of the sleeve (5) is provided with a sleeve cap (1), the sleeve (5) is provided with a connecting mechanism, and the bottom of the sleeve (5) is fixedly connected with a conical head (6). The conical head (6) includes several valves that are hinged to the sleeve (5). Any two adjacent valves are slidably connected to form a spiral valve type conical head. The valve is hinged to the outer wall of the sleeve (5) via a connecting seat (7); The valve has a groove (8) on one side and a protrusion (9) on the side away from the groove (8). The adjacent groove (8) and the protrusion (9) are adapted to each other. The sleeve cap (1) is detachably connected to the sleeve (5), and the diameter of the sleeve cap (1) is larger than the diameter of the sleeve (5). The connecting mechanism includes a ring (2) disposed inside the sleeve (5), the ring (2) being disposed at the top inside the sleeve (5), and a plurality of connecting steel bars (3) being fixedly connected to the outer circumference of the ring (2) at equal intervals. The side of the connecting steel bars (3) away from the ring (2) is fixedly connected to the inner wall of the sleeve (5), and the ring (2) is connected to the support member by iron wire. The support includes several reinforcing materials (4) connected to the ring (2) at equal intervals by iron wire. The bottom of the reinforcing material (4) is in the form of a net bag. A small amount of large-volume waste material (10) can be pre-filled in the net bag. The weight of the waste material (10) ensures that the reinforcing material (4) has a certain verticality and will not swing too much.

2. The construction method of the soft soil foundation reinforcement device for efficiently treating fluidized mud according to claim 1, characterized in that, Includes the following steps: a. Fabricate the treatment device and assemble it in the factory before construction. b. Construction of the treatment device: The treatment device is driven into the soft soil through external equipment and injected with fluid mud; the connection between the ring (2) and the reinforcing material (4) is cut off; c. Pull out the treatment device. After the mud has initially solidified, pull out the treatment device.

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