Soft foundation treatment structure and soft foundation treatment method

Abstract

The present invention relates to the technical field of soft foundation soil treatment, and more specifically, to a soft foundation treatment structure and a soft foundation treatment method. The structure comprises a support member, which is arranged in the soft foundation soil and is cast in concrete. An upper end positioning member is provided near the upper end of the support member, a lower end positioning member is provided at the lower end of the support member, and a positioning frame is provided inside the support member. The present invention blocks the soft foundation soil by providing a receiving plate, so that when the support member is subjected to gravity, the receiving plate can disperse the gravity in the soil, thereby preventing the support member from sinking into the soil. At the same time, an upper end positioning member and a lower end positioning member are provided on the support member. When the support member is subjected to gravity, the gravity on the support member is dispersed outwards through the positioning plates on the upper end positioning member and the lower end positioning member, thereby improving the support member's ability to withstand pressure and ensuring that no sinking occurs when the support member supports the road surface and bridge deck, thereby ensuring the normal use of the bridge deck and road surface.

Description

Technical Field

[0001] The present invention relates to the technical field of soft foundation soil treatment, in particular to a soft foundation treatment structure and a soft foundation treatment method. Background Art

[0002] During the construction of roads and bridges, soft soil will be encountered. Soft soil may sink when bearing heavy objects. When the road or bridge on the soft foundation sinks, it will affect the stability of the road or bridge deck and increase the danger of car traffic.

[0003] Currently, when treating a soft foundation, columns are driven into the soft foundation. The columns driven into the soil are used to support the buildings on the soft foundation, thereby improving the stability of the buildings on the soft foundation. However, this method of supporting buildings cannot last long. When the columns in the soft foundation are subjected to force, they will sink, and the buildings supported by the columns will also sink. In order to ensure the stable use of bridge decks and roads on the soft foundation and ensure the normal passage of vehicles, this case provides a soft foundation treatment structure and a soft foundation treatment method. Summary of the Invention

[0004] The purpose of the present invention is to provide a soft foundation treatment structure and a soft foundation treatment method to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, one of the purposes of the present invention is to provide a soft foundation treatment structure, including a support member, wherein the support member is arranged in soft foundation soil, the support member is made of concrete, an upper end positioning member is provided near the upper end of the support member, and a lower end positioning member is provided at the lower end of the support member, and a positioning frame is provided inside the support member, and the positioning frame reinforces the structure of the support member, the upper end positioning member and the lower end positioning member are inserted into the soft foundation soil, and the upper end positioning member and the lower end positioning member are arranged in an umbrella shape, and the support member is used to support the building on the upper side of the soft foundation soil. In the process of the building applying pressure on the support member, the upper end positioning member and the lower end positioning member position the support member of the soft foundation soil by blocking the soft foundation soil, and the upper end positioning member and the lower end positioning member inserted into the soft foundation soil position and reinforce the soft foundation soil.

[0006] As a further improvement of the present technical solution, a hole is dug in the soil, and concrete is poured in the hole to solidify the concrete into a support member, wherein the support member includes a support column, a receiving plate is fixed to the bottom of the support column, and the receiving plate is flat. Several external protrusions are fixed near the top of the support column, the upper end positioning member is arranged at the position of the external protrusion, and the lower end positioning member is arranged on the lower side of the receiving plate. The resistance of the upper end positioning member to the soft foundation soil is transmitted to the external protrusion, and the force of the lower end positioning member to block the soft foundation soil is transmitted to the receiving plate, so that the support member has an upward force.

[0007] As a further improvement of the present technical solution, the upper end positioning member and the lower end positioning member are both composed of several positioning plates, the several positioning plates in the upper end positioning member are divided into multiple layers, and each layer is provided with several positioning plates, and the several positioning plates in each layer are arranged in a circular array, one end of the positioning plate is fixed on the external protrusion block, and the end of the positioning plate away from the external protrusion block is arranged tilted downward.

[0008] As a further improvement of the present technical solution, the several positioning plates on the lower end positioning member are arranged in multiple circles from the inside to the outside, and each circle is provided with several positioning plates, and the several positioning plates in each circle are arranged in a circular array. One end of the positioning plate is fixed at a position near the middle of the bottom of the receiving plate, and the other end of the positioning plate is inclined toward the bottom of the receiving plate.

[0009] As a further improvement of the present technical solution, the several positioning plates of two adjacent layers on the upper end positioning member are staggered with each other, and the several positioning plates of two adjacent circles on the lower end positioning member are staggered with each other, and the inclination angle of the positioning plates of the inner circle of the lower end positioning member along the vertical line direction is smaller than the inclination angle of the positioning plates of the outer circle, and among the several layers in the upper end positioning member, the inclination angle of the several positioning plates located in the upper layer along the vertical line direction is greater than the inclination angle of the positioning plates located in the lower layer.

[0010] As a further improvement of the present technical solution, the positioning frame includes a plurality of short rods and long rods, and the plurality of short rods and long rods are staggered and arranged in a ring. The bottom of the short rod is higher than the bottom of the long rod. The bottom of the short rod and the long rod is set in the receiving plate, and the middle of the short rod and the long rod is set inside the support column. The top of the short rod and the long rod passes through the support column and extends out. A plurality of short rods and long rods combined into a ring are sleeved with a plurality of rings.

[0011] A second object of the present invention is to provide a soft foundation treatment method using the above-mentioned soft foundation treatment structure, comprising the following steps:

[0012] S1. Dig a groove for the building installation on the soft ground, and use a drill to dig a straight barrel groove in the groove. Insert an excavating device into the straight barrel groove, rotate the excavating device to dig a plurality of annular grooves on the side wall of the straight barrel groove, and then dig the bottom groove at the bottom of the straight barrel groove.

[0013] S2. Inserting a plurality of positioning plates into the center of the bottom of the bottom trough, so that the plurality of positioning plates are inserted obliquely into the soft soil, the plurality of positioning plates being divided into a plurality of circles, each circle being composed of a plurality of positioning plates, so that the plurality of positioning plates are combined to form a lower end positioning member;

[0014] S3. After the lower end positioning piece is installed, several positioning plates are inserted into the annular groove. The several positioning plates are assembled at the annular groove to form the upper end positioning piece;

[0015] S4. First, fill the bottom trough with concrete, leaving some concrete at the bottom of the trough. Insert several long rods into the straight barrel trough, insert the bottom of the long rods into the concrete, and then pour concrete into the bottom trough. Then, insert several short rods into the bottom trough, and arrange the short rods and long rods in an alternating manner.

[0016] S5. Place a tie ring on several short rods and long rods, then pour concrete. After part of the concrete has been poured, continue to place the tie ring.

[0017] S6. Repeat the operation of S5 to fill the straight barrel groove with concrete. After the concrete solidifies, the concrete at the bottom groove forms a receiving plate, the concrete at the straight barrel groove forms a supporting column, and the concrete at the ring groove forms an outer protrusion.

[0018] As a further improvement of the present technical solution, the excavating device in S1 includes a rotating rod, a rotating head is fixedly installed at the bottom of the rotating rod, a scraping bar is slidably provided on the rotating head, and scraping knives are fixed at both ends of the scraping bar. The rotating rod is connected to the drilling rig, and the drilling rig drives the rotating rod to rotate, so that the scraping knives at both ends of the scraping bar scrape the side walls of the straight barrel trough.

[0019] As a further improvement of the present technical solution, a tooth plate is fixed on the upper side of the scraping bar, a motor is installed inside the rotating head, a gear is installed at one end of the motor shaft, the gear and the tooth plate are meshed, and the rotation of the gear drives the tooth plate to move, causing the scraping bar to move on the rotating head, thereby changing the depth of the scraping bar's excavation of the side wall of the straight barrel trough.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the soft foundation treatment structure and the soft foundation treatment method, the soft foundation soil is blocked by the receiving plate, so that when the support member is subjected to gravity, the receiving plate can disperse the gravity in the soil to prevent the support member from sinking into the soil. At the same time, an upper end positioning member and a lower end positioning member are provided on the support member. When the support member is subjected to gravity, the gravity on the support member is dispersed outwards through the positioning plates on the upper end positioning member and the lower end positioning member, thereby improving the pressure-bearing capacity of the support member and ensuring that the support member does not sink when supporting the road surface and bridge deck, thereby ensuring the normal use of the bridge deck and road surface.

[0022] 2. In the soft foundation treatment structure and the soft foundation treatment method, a plurality of positioning plates are arranged on the side of the support member and inserted into the soft foundation soil, so that the plurality of positioning plates disperse the force on the support member and improve the compressive resistance of the support member. At the same time, the plurality of positioning plates are inserted into the soil to improve the stability of the soft foundation soil, further improve the stability of the support member placement, and ensure the stability of the support member in supporting the road surface and bridge deck.

[0023] 3. In the soft foundation treatment structure and the soft foundation treatment method, a straight barrel trough is excavated in the soil, and then the ring trough and the bottom trough are excavated by an excavating device. After the excavation, several positioning plates are inserted into the soil, and then concrete is poured. This reduces the difficulty of setting the support parts in the soil, eliminates the transportation of the support parts, and facilitates the workers' production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the overall structure of the present invention before being cast;

[0026] Figure 3 This is a schematic diagram of the support structure of the present invention;

[0027] Figure 4 This is a schematic structural diagram of the lower end positioning member of the present invention;

[0028] Figure 5 This is a schematic diagram of the top view of the lower end positioning member of the present invention;

[0029] Figure 6 This is a schematic structural diagram of the positioning plate of the present invention;

[0030] Figure 7 It is a schematic diagram of the positioning frame structure of the present invention;

[0031] Figure 8 This is a schematic structural diagram of the excavation device of the present invention for excavating an annular groove and a bottom groove;

[0032] Figure 9It is a schematic structural diagram of the excavation device of the present invention;

[0033] Figure 10 It is a schematic diagram of a partial cross-sectional structure of the excavation device of the present invention;

[0034] Figure 11 This is a schematic diagram of the straight barrel tank structure of the present invention;

[0035] Figure 12 This is a schematic diagram of the excavation ring groove structure of the excavation device of the present invention;

[0036] Figure 13 This is a schematic diagram of the bottom trench excavation structure of the excavation device of the present invention;

[0037] Figure 14 This is a schematic structural diagram of installing several positioning plates in a straight barrel tank according to the present invention;

[0038] Figure 15 This is a schematic diagram of a short rod structure installed in a straight barrel tank of the present invention;

[0039] Figure 16 This is the second schematic diagram of the short rod structure installed in the straight barrel tank of the present invention;

[0040] Figure 17 This is a schematic diagram of the positioning frame structure installed in the straight barrel tank of the present invention.

[0041] The meaning of each number in the figure is:

[0042] 1. Support member; 11. Socket plate; 12. Support column; 13. External protrusion;

[0043] 2. Upper end positioning piece; 3. Lower end positioning piece; 31. Positioning plate; 32. Inclined plate; 33. Stop groove;

[0044] 4. Positioning frame; 41. Short rod; 42. Long rod; 43. Binding;

[0045] 5. Excavating device; 51. Rotating rod; 52. Rotating head; 53. Scraping bar; 54. Tooth plate; 55. Motor;

[0046] 6. Straight barrel groove; 7. Ring groove; 8. Bottom groove. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. Example

[0049] See also Figure 1-Figure 7 As shown, one of the purposes of this embodiment is to provide a soft foundation treatment structure, including a support member 1, which is set in the soft foundation soil and is made of concrete. Among them, the support member 1 is provided with an upper end positioning member 2 near the upper end, and the lower end positioning member 3 is provided at the lower end of the support member 1. A positioning frame 4 is provided inside the support member 1, and the positioning frame 4 reinforces the structure of the support member 1 to improve the firmness of the structure of the support member 1. The upper end positioning member 2 and the lower end positioning member 3 penetrate into the soft foundation soil. The upper positioning member 2 and the lower positioning member 3 are arranged in an umbrella shape. The support member 1 is used to support the building on the upper side of the soft foundation soil. In the process of the building exerting pressure on the support member 1, the upper positioning member 2 and the lower positioning member 3 block the soft foundation soil to position the support member 1 on the soft foundation soil, thereby improving the compressive resistance of the support member 1 and improving the load-bearing capacity of the support member 1. At the same time, the upper positioning member 2 and the lower positioning member 3 inserted into the soft foundation soil position and reinforce the soft foundation soil, thereby improving the stability of the soft foundation soil structure.

[0050] The receiving plate 11 is provided to block the soft foundation soil, so that when the support member 1 is subjected to gravity, the support member 1 can disperse the gravity in the soil, thereby preventing the support member 1 from sinking into the soil. At the same time, an upper end positioning member 2 and a lower end positioning member 3 are provided on the support member 1. When the support member 1 is subjected to gravity, the gravity on the support member 1 is dispersed outwards through the positioning plates 31 on the upper end positioning member 2 and the lower end positioning member 3, thereby improving the pressure-bearing capacity of the support member 1 and ensuring that the support member 1 will not sink when supporting the road surface and bridge deck, thereby ensuring the normal use of the bridge deck and road surface.

[0051] The structure of the support member 1 is detailed below. Figure 3As shown, a hole is dug in the soil, and concrete is poured in the hole to solidify the concrete into a support member 1, wherein the support member 1 includes a support column 12, which supports the road surface or bridge deck. A receiving plate 11 is fixed to the bottom of the support column 12, and the receiving plate 11 is flat and horizontally arranged. The flat receiving plate 11 is in contact with the soft foundation soil. When the support column 12 is subjected to force, the receiving plate 11 blocks the soft foundation soil, so that the support column 12 does not sink, thereby improving the stability of the support column 12 in supporting the road surface or bridge deck.

[0052] At the same time, the lower end positioning member 3 is arranged on the lower side of the receiving plate 11, the upper end positioning member 2 transmits the resistance to the soft foundation soil to the outer protrusion 13, and the lower end positioning member 3 transmits the force of blocking the soft foundation soil to the receiving plate 11, so that the support member 1 has an upward force, which improves the stability of the support member 1 in the soft foundation soil and prevents the support member 1 from sinking into the soft foundation soil under the force.

[0053] Among them, please refer to Figure 4-Figure 5 The lower end positioning member 3 is composed of a plurality of positioning plates 31. The plurality of positioning plates 31 on the lower end positioning member 3 are provided with multiple circles from the inside to the outside, and each circle is provided with a plurality of positioning plates 31, that is, a plurality of positioning plates 31 are combined to form a circle, and this circle is divided into multiple circles, and the plurality of circles are concentrically arranged. The plurality of positioning plates 31 in each circle are arranged in a circular array. One end of the positioning plate 31 is fixed to the bottom of the receiving plate 11 near the middle position, and the other end of the positioning plate 31 is inclined toward the bottom of the receiving plate 11. The plurality of positioning plates 31 in the adjacent two circles on the lower end positioning member 3 are arranged in a circular array. The positioning plates 31 of the inner circle of the lower end positioning member 3 are arranged in an interlaced manner, and the inclination angle of the positioning plates 31 along the vertical line is smaller than the inclination angle of the positioning plates 31 of the outer circle, so that several positioning plates 31 form a trumpet shape at the bottom of the receiving plate 11 that spreads downward from the bottom of the receiving plate 11. When the support column 12 is subjected to pressure from the road surface or bridge deck, the receiving plate 11 transfers the pressure to the lower end positioning member 3, and several positioning plates 31 disperse the force on the receiving plate 11, thereby improving the pressure-bearing capacity of the receiving plate 11 and preventing the receiving plate 11 from sinking under the soft foundation soil after being compressed.

[0054] At the same time, the position of the support member 1 is further positioned, and several outer protrusions 13 are fixed on the support column 12 near the top, and the upper positioning member 2 is arranged at the position of the outer protrusion 13. The upper positioning member 2 is also composed of several positioning plates 31. The several positioning plates 31 in the upper positioning member 2 are divided into multiple layers, and each layer is provided with several positioning plates 31, that is, several positioning plates 31 are combined to form a circle, and multiple circles are vertically arranged to form multiple layers, and several positioning plates 31 in each layer are arranged in a circular array, one end of the positioning plate 31 is fixed on the outer protrusion 13, and the positioning plate 31 is tilted downward away from the end of the outer protrusion 13, and the positioning plate 31 is inserted in the soft foundation soil. The several positioning plates 31 of the two adjacent layers on the upper positioning member 2 are staggered with each other, and in the several layers of the upper positioning member 2, the inclination angle of the several positioning plates 31 located in the upper layer along the vertical direction is greater than the inclination angle of the positioning plates 31 located in the lower layer.

[0055] When the support member 1 is subjected to a downward force, the support member 1 tends to drive the positioning plate 31 downward. At this time, the positioning plate 31 blocks the soil. With the help of the resistance of the soil to the positioning plate 31, the positioning plate 31 exerts an upward force on the support member 1, thereby improving the stability of the support member 1 in the soil.

[0056] At the same time, the positioning plate 31 is tilted so that when the support member 1 is subjected to a downward force, the pressure of the positioning plate 31 on the soil will cause the soil to gather towards the support member 1, thereby enhancing the stability of the support member 1 placed in the soil and enhancing the stability of the support member 1 in supporting the road surface and bridge deck.

[0057] At the same time, in order to improve the blocking effect of the positioning plate 31 on the soil, ensure that the positioning plate 31 provides force to the support member 1, refer to Figure 6 The structure of the positioning plate 31 is refined, and a positioning plate 31 is provided at one end of the positioning plate 31. The inclined plate 32 is inclined to form a retaining groove 33 between the inclined plate 32 and the positioning plate 31. When the positioning plate 31 is forced to move downward, the retaining groove 33 guides the soil toward the direction close to the support member 1, so that the soil near the support member 1 increases, thereby improving the stability of the support member 1.

[0058] During the casting process of the support member 1, the stability of the support member 1 will be improved by positioning the frame 4. Figure 7The positioning frame 4 includes a plurality of short rods 41 and long rods 42. The plurality of short rods 41 and long rods 42 are staggered and arranged in a ring shape. The bottom of the short rod 41 is higher than the bottom of the long rod 42. The bottoms of the short rods 41 and the long rods 42 are arranged in the receiving plate 11. The middle parts of the short rods 41 and the long rods 42 are arranged inside the support column 12. The tops of the short rods 41 and the long rods 42 pass through the support column 12 and extend out. A plurality of short rods 41 and long rods 42 combined into a ring shape are sleeved with a plurality of ring ties 43. By arranging the short rods 41 and the long rods 42 in the support column 12, the overall tensile and compressive resistance of the support member 1 is improved, ensuring that the support member 1 will not be damaged when supporting the bridge deck or road surface, and ensuring the normal use of the support member 1.

[0059] The second object of the present invention is to provide a soft foundation treatment method using the above soft foundation treatment structure, please refer to Figures 8-17 , comprising the following method steps:

[0060] S1, dig out a groove for building installation on the soft base ground, and use a drill to dig out a straight barrel groove 6 in the groove, the specific situation is as follows Figure 11 , insert the digging device 5 into the straight barrel groove 6, and the digging device 5 rotates to dig out several annular grooves 7 on the side wall of the straight barrel groove 6. Figure 12 Then the excavating device 5 goes deep into the bottom of the straight barrel tank 6 and digs out the bottom tank 8 at the bottom of the straight barrel tank 6. Figure 13 and Figure 8 As shown;

[0061] The annular groove 7 and the bottom groove 8 are excavated to facilitate installation of the positioning plate 31 constituting the upper positioning member 2 and the lower positioning member 3 .

[0062] refer to Figure 9-10 The excavation device 5 in S1 includes a rotating rod 51, which is connected to the rotating head of the drilling rig, and the rotating head drives the rotating rod 51 to rotate along the axis. A rotating head 52 is fixedly installed at the bottom of the rotating rod 51, and a scraping bar 53 is slidably provided on the rotating head 52. Mud scraping knives are fixed at both ends of the scraping bar 53, and a tooth plate 54 is fixed on the upper side of the scraping bar 53. A motor 55 is installed inside the rotating head 52, and a gear is installed at one end of the rotating shaft of the motor 55. The gear and the tooth plate 54 are engaged. The rotation of the gear drives the tooth plate 54 to move, so that the scraping bar 53 moves on the rotating head 52, changing the depth of the scraping bar 53 excavating the side wall of the straight barrel groove 6. The rotating rod 51 is connected to the drilling rig, and the drilling rig drives the rotating rod 51 to rotate, so that the mud scraping knives at both ends of the scraping bar 53 scrape the side wall of the straight barrel groove 6, so that the excavation device 5 excavates the annular groove 7 and the bottom groove 8 on the side wall of the straight barrel groove 6.

[0063] S2, S3 reference Figure 14 ;

[0064] S2. Insert several positioning plates 31 into the center of the bottom of the bottom trough 8, so that the several positioning plates 31 are inserted obliquely into the soft soil. The positioning plates 31 are inserted obliquely into the soil. The several positioning plates 31 are divided into multiple circles, each circle is composed of several positioning plates 31, so that the several positioning plates 31 are combined to form the lower end positioning member 3;

[0065] S3. After the lower end positioning member 3 is installed, several positioning plates 31 are inserted into the annular groove 7. The positioning plates 31 are inserted obliquely into the soil. Several positioning plates 31 are combined at the annular groove 7 to form the upper end positioning member 2. At the same time, the several positioning plates 31 in the upper end positioning member 2 have a smaller inclination angle with the vertical direction than the positioning plates 31 on the upper side. One reason is that when the positioning plates 31 penetrate deeper into the straight barrel groove 6, the positioning plates 31 are affected by the side walls of the straight barrel groove 6, making the inclination angle of the positioning plates 31 smaller. When the inclination angle of the positioning plate 31 becomes larger, one end of the positioning plate 31 will scrape against the side wall of the straight barrel groove 6, which will affect the normal insertion of the positioning plate 31. At the same time, the inclination angles of several positioning plates 31 change from small to large, so that the several positioning plates 31 on the upper end positioning member 2 are combined to form an inverted trumpet-shaped structure. When the support column 12 is subjected to force, the positioning plate 31 facilitates the soil near the support column 12 to gather in the direction close to the support column 12, thereby improving the stability of the soil near the support column 12 and strengthening the supporting effect of the support member 1 on the road surface and bridge deck;

[0066] S4, S5 and S6 references Figure 15-17 ;

[0067] S4. First, fill the bottom trough 8 with concrete, leaving some concrete at the bottom of the bottom trough 8. Insert several long rods 42 into the straight barrel trough 6, so that the bottom of the long rods 42 is inserted into the concrete. Then, pour the concrete into the bottom trough 8. Then, insert several short rods 41 into the bottom trough 8. The short rods 41 and the long rods 42 are staggered. The staggered arrangement of the short rods 41 and the long rods 42 increases the contact range with the concrete, thereby improving the stability of the concrete after solidification.

[0068] S5. Place a tie ring 43 on several short rods 41 and long rods 42, then pour concrete. After part of the concrete has been poured, continue to place the tie ring 43.

[0069] S6. Repeat the operation of S5 to fill the straight barrel groove 6 with concrete. After the concrete solidifies, the concrete at the bottom groove 8 forms a receiving plate 11, the concrete at the straight barrel groove 6 forms a support column 12, and the concrete at the annular groove 7 forms an outer protrusion 13.

[0070] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A soft foundation treatment structure, comprising a support member (1), wherein the support member (1) is arranged in soft foundation soil and is cast in concrete, and is characterized in that: The support member (1) is provided with an upper end positioning member (2) near the upper end, and a lower end positioning member (3) is provided at the lower end of the support member (1). A positioning frame (4) is provided inside the support member (1), and the positioning frame (4) reinforces the structure of the support member (1). The upper end positioning member (2) and the lower end positioning member (3) penetrate into the soft foundation soil. The upper end positioning member (2) and the lower end positioning member (3) are arranged in an umbrella shape. The support member (1) is used to support the building on the upper side of the soft foundation soil. When the building applies pressure to the support member (1), the upper end positioning member (2) and the lower end positioning member (3) block the soft foundation soil to position the support member (1) on the soft foundation soil. At the same time, the upper end positioning member (2) and the lower end positioning member (3) inserted into the soft foundation soil position and reinforce the soft foundation soil. A hole is dug in the soil, and concrete is poured into the hole to solidify the concrete into a support member (1), wherein the support member (1) includes a support column (12), a receiving plate (11) is fixed to the bottom of the support column (12), the receiving plate (11) is flat, and a plurality of external protrusions (13) are fixed near the top of the support column (12), the upper end positioning member (2) is arranged at the position of the external protrusion (13), and the lower end positioning member (3) is arranged on the lower side of the receiving plate (11), the resistance of the upper end positioning member (2) to the soft foundation soil is transmitted to the external protrusion (13), and the force of the lower end positioning member (3) to block the soft foundation soil is transmitted to the receiving plate (11), so that the support member (1) has an upward force; The upper end positioning member (2) and the lower end positioning member (3) are both composed of a plurality of positioning plates (31), the plurality of positioning plates (31) in the upper end positioning member (2) are divided into multiple layers, and each layer is provided with a plurality of positioning plates (31), and the plurality of positioning plates (31) in each layer are arranged in a circular array, one end of the positioning plate (31) is fixed on the outer protrusion (13), and the end of the positioning plate (31) away from the outer protrusion (13) is arranged obliquely downward; The plurality of positioning plates (31) on the lower end positioning member (3) are provided in multiple circles from the inside to the outside, and each circle is provided with a plurality of positioning plates (31), and the plurality of positioning plates (31) in each circle are arranged in a circular array, one end of the positioning plate (31) is fixed to a position near the middle of the bottom of the receiving plate (11), and the other end of the positioning plate (31) is inclined toward the bottom of the receiving plate (11); The plurality of positioning plates (31) on two adjacent layers of the upper end positioning member (2) are staggered with each other, and the plurality of positioning plates (31) on two adjacent circles of the lower end positioning member (3) are staggered with each other, and the inclination angle of the positioning plates (31) on the inner circle of the lower end positioning member (3) along the vertical direction is smaller than the inclination angle of the positioning plates (31) on the outer circle, and the inclination angle of the plurality of positioning plates (31) on the upper layer of the plurality of layers in the upper end positioning member (2) along the vertical direction is larger than the inclination angle of the positioning plates (31) on the lower layer.

2. The soft foundation treatment structure according to claim 1, characterized in that: The positioning frame (4) includes a plurality of short rods (41) and long rods (42), and the plurality of short rods (41) and long rods (42) are staggered and arranged in a ring. The bottom of the short rod (41) is higher than the bottom of the long rod (42). The bottoms of the short rods (41) and the long rods (42) are arranged in the receiving plate (11). The middle parts of the short rods (41) and the long rods (42) are arranged inside the support column (12). The tops of the short rods (41) and the long rods (42) pass through the support column (12) and extend out. The plurality of short rods (41) and the long rods (42) combined into a ring are sleeved with a plurality of ring ties (43).

3. A soft foundation treatment method using the soft foundation treatment structure according to any one of claims 1 to 2, characterized in that: The method comprises the following steps: S1. Dig a groove for installing the building on the soft base surface, and use a drill to dig a straight barrel groove (6) in the groove, insert the digging device (5) into the straight barrel groove (6), rotate the digging device (5) to dig a plurality of annular grooves (7) on the side wall of the straight barrel groove (6), and then the digging device (5) goes deep into the bottom of the straight barrel groove (6) to dig a bottom groove (8) at the bottom of the straight barrel groove (6); S2, inserting a plurality of positioning plates (31) into the center position of the bottom of the bottom trough (8), so that the plurality of positioning plates (31) are obliquely inserted into the soft soil, the plurality of positioning plates (31) are divided into a plurality of circles, each circle is composed of a plurality of positioning plates (31), so that the plurality of positioning plates (31) are combined to form a lower end positioning member (3); S3. After the lower end positioning member (3) is installed, a plurality of positioning plates (31) are inserted into the annular groove (7). The plurality of positioning plates (31) are combined at the annular groove (7) to form the upper end positioning member (2); S4, first fill the bottom trough (8) with concrete, leaving some concrete at the bottom of the bottom trough (8), insert several long rods (42) into the straight barrel trough (6), insert the bottom of the long rod (42) into the concrete, then inject concrete into the bottom trough (8), and then insert several short rods (41) into the bottom trough (8), and several short rods (41) and long rods (42) are staggered; S5, a ring tie (43) is placed on a plurality of short rods (41) and long rods (42), and then concrete is injected. After part of the concrete is injected, the ring tie (43) is continued to be placed; S6, repeat the operation of S5 to fill the straight barrel groove (6) with concrete. After the concrete solidifies, the concrete at the bottom groove (8) forms a receiving plate (11), the concrete at the straight barrel groove (6) forms a supporting column (12), and the concrete at the annular groove (7) forms an outer protrusion (13).

4. The soft foundation treatment method according to claim 3, characterized in that: The excavation device (5) in S1 comprises a rotating rod (51), a rotating head (52) is fixedly mounted on the bottom of the rotating rod (51), a scraping bar (53) is slidably provided on the rotating head (52), and scraping knives are fixed at both ends of the scraping bar (53). The rotating rod (51) is connected to a drilling rig, and the drilling rig drives the rotating rod (51) to rotate, so that the scraping knives at both ends of the scraping bar (53) scrape the side wall of the straight barrel trough (6).

5. The soft foundation treatment method according to claim 4, characterized in that: A tooth plate (54) is fixed on the upper side of the scraping bar (53), and a motor (55) is installed inside the rotating head (52). A gear is installed at one end of the rotating shaft of the motor (55). The gear and the tooth plate (54) are engaged. The rotation of the gear drives the tooth plate (54) to move, so that the scraping bar (53) moves on the rotating head (52), thereby changing the depth of the scraping bar (53) excavating the side wall of the straight barrel groove (6).

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