Soft foundation treatment structure and soft foundation treatment method

Abstract

The 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. The device comprises a supporting piece, the supporting piece is arranged in soft foundation soil, the supporting piece is formed by pouring concrete, an upper end positioning piece is arranged at the position, close to the upper end, of the supporting piece, a lower end positioning piece is arranged at the lower end of the supporting piece, and a positioning frame is arranged in the supporting piece. Soft foundation soil is blocked through the arranged bearing plate, under the condition that the supporting piece is subjected to gravity, the bearing plate can disperse the gravity into the soil, the supporting piece is prevented from sinking into the soil, meanwhile, the upper end positioning piece and the lower end positioning piece are arranged on the supporting piece, and when the supporting piece is subjected to the gravity, the supporting piece is prevented from sinking into the soil. The gravity on the supporting piece is dispersed outwards through the positioning plates on the upper end positioning piece and the lower end positioning piece, the pressure bearing capacity of the supporting piece is improved, it is guaranteed that the situation that the supporting piece sinks when supporting the road surface and the bridge floor is avoided, and normal use of the bridge floor and the road surface is guaranteed.

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 process of road and bridge construction, soft foundation soil will be encountered. Soft foundation 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] At present, 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, so as to improve the stability of the buildings on the soft foundation. However, the support time of the buildings supported by this method cannot be sustained. 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 that the bridge deck and road surface on the soft foundation can be used stably 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 object 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 cast by concrete, an upper end positioning member is arranged near the upper end of the support member, a lower end positioning member is arranged at the lower end of the support member, a positioning frame is arranged inside the support member, 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, the upper end positioning member and the lower end positioning member are arranged in an umbrella shape, the support member is used to support the building on the upper side of the soft foundation soil, and in the process of the building applying pressure to 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 at the same time, 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 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. A plurality of 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 a plurality of positioning plates, the plurality of positioning plates in the upper end positioning member are divided into multiple layers, and each layer is provided with a plurality of positioning plates, and the plurality of 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 inclined downward.

[0008] As a further improvement of the present technical solution, the several positioning plates on the lower end positioning piece 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 arranged in a receiving plate. The middle of the short rod and the long rod is arranged inside a 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 in a ring are sleeved with a plurality of rings.

[0011] The second object of the present invention is to provide a soft foundation treatment method by providing the soft foundation treatment structure, comprising the following method steps: S1. Dig a groove for installing the building on the soft base ground, and use a drilling machine 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 the excavating device goes deep into the bottom of the straight barrel groove to dig a bottom groove at the bottom of the straight barrel groove; S2. Insert several positioning plates into the center of the bottom of the bottom trough, so that several of them are inserted obliquely into the soft soil, and the several positioning plates are divided into multiple circles, each circle is composed of several positioning plates, so that the several positioning plates are combined to form a lower end positioning piece; S3. After the lower end positioning piece is installed, a plurality of positioning plates are inserted into the annular groove, and the plurality of positioning plates are combined at the annular groove to form an upper end positioning piece; S4, first fill the bottom groove with concrete, leaving some concrete at the bottom of the bottom groove, insert several long rods into the straight barrel groove, insert the bottom of the long rods into the concrete, then inject concrete into the bottom groove, and then insert several short rods into the bottom groove, and several short rods and long rods are arranged alternately; S5, a ring tie is placed on several short rods and long rods, and then concrete is injected. After part of the concrete is injected, the ring tie is continued to be placed; 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.

[0012] As a further improvement of the present technical solution, the excavation 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 arranged on the rotating head, and mud scrapers are fixed at both ends of the scraping bar. The rotating rod is connected to a drilling rig, and the drilling rig drives the rotating rod to rotate, so that the mud scrapers at both ends of the scraping bar scrape the side wall of the straight barrel trough.

[0013] 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, so that the scraping bar moves on the rotating head, changing the depth of the scraping bar's excavation of the side wall of the straight barrel groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 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 is subjected to gravity, the receiving plate can disperse the gravity in the soil to prevent the support from sinking into the soil. At the same time, an upper positioning member and a lower positioning member are arranged on the support. When the support is subjected to gravity, the gravity on the support is dispersed outwards through the positioning plates on the upper positioning member and the lower positioning member, thereby improving the pressure-bearing capacity of the support and ensuring that no sinking occurs when the support supports the road surface and the bridge deck, thereby ensuring the normal use of the bridge deck and the road surface.

[0015] 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 and inserted into the soft foundation soil, so that the plurality of positioning plates disperse the force on the support and improve the compressive capacity of the support. At the same time, a plurality of positioning plates are inserted into the soil to improve the stability of the soft foundation soil, further improve the stability of the placement of the support, and ensure the stability of the support for the road surface and bridge deck.

[0016] 3. In the soft foundation treatment structure and the soft foundation treatment method, a straight barrel groove is dug in the soil, and then the ring groove and the bottom groove are dug by an excavating device. After the excavation, several positioning plates are inserted into the soil, and then concrete is poured, so as to reduce the difficulty of setting the support in the soil, eliminate the transportation of the support, and facilitate the workers' production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the overall structure of the present invention before being cast; Figure 3 It is a schematic diagram of the support structure of the present invention; Figure 4 It is a schematic diagram of the structure of the lower end positioning member of the present invention; Figure 5 It is a schematic diagram of the top view of the structure of the lower end positioning member of the present invention; Figure 6 It is a schematic diagram of the positioning plate structure of the present invention; Figure 7 It is a schematic diagram of the positioning frame structure of the present invention; Figure 8 It is a schematic diagram of the structure of the excavation device of the present invention for excavating the annular groove and the bottom groove; Fig. 9 It is a schematic diagram of the structure of the excavation device of the present invention; Fig.10 It is a partial cross-sectional structural schematic diagram of the excavation device of the present invention; Fig.11 This is a schematic diagram of the straight barrel tank structure of the present invention; Fig.12 This is a schematic diagram of the excavation ring groove structure of the excavation device of the present invention; Fig.13 This is a schematic diagram of the bottom trench digging structure of the digging device of the present invention; Fig.14 It is a structural schematic diagram of installing a plurality of positioning plates in a straight barrel tank of the present invention; Fig.15 This is a schematic diagram of a short rod structure installed in a straight barrel tank of the present invention; Fig.16 This is the second schematic diagram of the short rod structure installed in the straight barrel tank of the present invention; Fig.17 It is a schematic diagram of the positioning frame structure installed in the straight barrel tank of the present invention.

[0018] The meaning of each number in the figure is: 1. Support member; 11. Adapter plate; 12. Support column; 13. External protrusion; 2. Upper end positioning piece; 3. Lower end positioning piece; 31. Positioning plate; 32. Inclined plate; 33. Stop groove; 4. Positioning frame; 41. Short rod; 42. Long rod; 43. Ring tying; 5. Digging device; 51. Rotating rod; 52. Rotating head; 53. Scraping strip; 54. Tooth plate; 55. Motor; 6. Straight barrel groove; 7. Ring groove; 8. Bottom groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] 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 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. Example

[0021] See also Figure 1-Figure 7As shown, one of the purposes of this embodiment is to provide a soft foundation treatment structure, including a support member 1, the support member 1 is arranged in the soft foundation soil, the support member 1 is cast by concrete, wherein an upper end positioning member 2 is arranged near the upper end of the support member 1, a lower end positioning member 3 is arranged at the lower end of the support member 1, and a positioning frame 4 is arranged inside the support member 1, the positioning frame 4 reinforces the structure of the support member 1, improves the firmness of the structure of the support member 1, and 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, and 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 of the soft foundation soil, thereby improving the compression resistance of the support member 1 and improving the 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.

[0022] 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 to prevent the support member 1 from sinking into the soil. At the same time, an upper positioning member 2 and a lower 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 positioning member 2 and the lower positioning member 3, thereby improving the pressure-bearing capacity of the support member 1 and ensuring that no sinking occurs when the support member 1 supports the road surface and the bridge deck, thereby ensuring the normal use of the bridge deck and the road surface.

[0023] The structure of the support member 1 is detailed below. Figure 3 As 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, and the support column 12 supports the road surface or the 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 to prevent the support column 12 from sinking, thereby improving the stability of the support column 12 in supporting the road surface and the bridge deck.

[0024] At the same time, 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 outer 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, 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.

[0025] Among them, please refer to Figure 4-Figure 5The 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 arranged in 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 multiple circles are concentrically arranged. The plurality of positioning plates 31 in each circle are arranged in a circular array, and one end of the positioning plate 31 is fixed at a position close to 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 in two adjacent circles on the lower end positioning member 3 The positioning plates 31 of the inner circle of the lower end positioning members 3 are arranged in an interlaced manner, and the inclination angle of the positioning plates 31 in the vertical direction is smaller than the inclination angle of the positioning plates 31 of the outer circle, so that a plurality of positioning plates 31 form a trumpet shape at the bottom of the receiving plate 11 that diffuses downward from the bottom of the receiving plate 11. When the support column 12 is subjected to pressure from the road surface or the bridge deck, the receiving plate 11 transfers the pressure to the lower end positioning member 3, and the plurality of 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.

[0026] At the same time, the position of the support member 1 is further positioned. Several outer protrusions 13 are fixed on the support column 12 near the top. 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. 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 end of the positioning plate 31 away from the outer protrusion 13 is inclined downward, 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. 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 line direction is greater than the inclination angle of the positioning plates 31 located in the lower layer.

[0027] When the support member 1 is subjected to a downward force, the support member 1 tends to drive the positioning plate 31 to move 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.

[0028] 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 toward 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.

[0029] 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.

[0030] During the pouring process of the support member 1, the stability of the support member 1 will be improved by positioning the frame 4. Figure 7 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 shape. The bottom of the short rod 41 is higher than the bottom of the long rod 42, and the bottoms of the short rods 41 and the long rods 42 are arranged in the receiving plate 11, and the middle parts of the short rods 41 and the long rods 42 are arranged inside the supporting column 12. The tops of the short rods 41 and the long rods 42 pass through the supporting column 12 and extend out. A plurality of short rods 41 and the long rods 42 combined in 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 supporting 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 the road surface, and ensuring the normal use of the support member 1.

[0031] The second object of the present invention is to provide a soft foundation treatment method by setting the soft foundation treatment structure as described above. Figure 8-Figure 17 , comprising the following method steps: S1. Dig a groove for building installation on the soft base, and use a drill to dig a straight barrel groove 6 in the groove. The specific situation is as follows Fig.11 , insert the digging device 5 into the straight barrel groove 6, and the digging device 5 rotates to dig out a plurality of annular grooves 7 on the side wall of the straight barrel groove 6. Fig.12 Then the excavating device 5 goes deep into the bottom of the straight barrel tank 6 and excavates a bottom tank 8 at the bottom of the straight barrel tank 6. Fig.13 and Figure 8 As shown; 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 .

[0032] refer to Figure 9-10The 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 arranged on the rotating head 52. Mud scrapers 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 meshed. The rotation of the gear drives the tooth plate 54 to move, so that the scraping bar 53 moves on the rotating head 52, and the depth of the excavation of the side wall of the straight barrel groove 6 by the scraping bar 53 is changed. 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 scrapers 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.

[0033] S2, S3 reference Fig.14 ; S2, inserting a plurality of positioning plates 31 into the center position of the bottom of the bottom groove 8, so that a plurality of positioning plates 31 are inserted obliquely into the soft soil, the positioning plates 31 are inserted obliquely into the 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 a 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, several positioning plates 31 are inserted into the annular groove 7. The positioning plates 31 are inserted into the soil at an angle. Several positioning plates 31 are combined at the annular groove 7 to form the upper end positioning member 2. At the same time, several positioning plates 31 in the upper end positioning member 2 have a smaller inclination angle in the vertical direction than the positioning plates 31 located at the lower 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 increases, one end of the positioning plate 31 will rub 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 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 is easy to gather the soil near the support column 12 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; S4, S5 and S6 reference Figure 15-17 ; S4, first fill the bottom groove 8 with concrete, leaving some concrete at the bottom of the bottom groove 8, insert a plurality of long rods 42 into the straight barrel groove 6, insert the bottom of the long rods 42 into the concrete, then inject the concrete into the bottom groove 8, and then insert a plurality of short rods 41 into the bottom groove 8, wherein the plurality of short rods 41 and the long rods 42 are staggered, and the staggered short rods 41 and the long rods 42 increase the contact range with the concrete, thereby increasing the stability of the concrete after solidification; S5, a ring tie 43 is placed on a plurality of short rods 41 and long rods 42, and then concrete is poured. After part of the concrete is poured, 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.

[0034] 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached 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 the support member (1) is cast by concrete, and is characterized in that: An upper end positioning member (2) is arranged near the upper end of the support member (1), and a lower end positioning member (3) is arranged at the lower end of the support member (1). A positioning frame (4) is arranged 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 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 a building on the upper side of the soft 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 soil to position the support member (1) on the soft soil. At the same time, the upper end positioning member (2) and the lower end positioning member (3) inserted into the soft soil position and reinforce the soft soil.

2. The soft foundation treatment structure according to claim 1, characterized in that: 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) comprises a support column (12), a receiving plate (11) is fixed to the bottom of the support column (12), the receiving plate (11) is flat, 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 protrusions (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 soil is transmitted to the external protrusions (13), and the force of the lower end positioning member (3) to block the soft soil is transmitted to the receiving plate (11), so that the support member (1) has an upward force.

3. The soft foundation treatment structure according to claim 2, characterized in that: 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), 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.

4. The soft foundation treatment structure according to claim 3, characterized in that: The plurality of positioning plates (31) on the lower end positioning member (3) are arranged in a plurality of 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 close to 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).

5. The soft foundation treatment structure according to claim 4, characterized in that: The plurality of positioning plates (31) of two adjacent layers on the upper end positioning member (2) are arranged in a staggered manner, and the plurality of positioning plates (31) of two adjacent circles on the lower end positioning member (3) are arranged in a staggered manner, and the inclination angle of the positioning plates (31) located in 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) in the outer circle, and the inclination angle of the plurality of positioning plates (31) located in 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) located in the lower layer.

6. The soft foundation treatment structure according to claim 2, characterized in that: The positioning frame (4) comprises a plurality of short rods (41) and long rods (42), the plurality of short rods (41) and long rods (42) being arranged in a staggered manner to form a ring, the bottom of the short rod (41) being higher than the bottom of the long rod (42), the bottoms of the short rods (41) and the long rods (42) being arranged in a receiving plate (11), the middle parts of the short rods (41) and the long rods (42) being arranged inside the support column (12), the tops of the short rods (41) and the long rods (42) passing through the support column (12) and extending out, and a plurality of ring ties (43) being sleeved on the plurality of short rods (41) and the long rods (42) combined in a ring.

7. A soft foundation treatment method by providing a soft foundation treatment structure according to any one of claims 1 to 6, 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 inserted obliquely 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), and the plurality of positioning plates (31) are combined at the annular groove (7) to form an upper end positioning member (2); S4, firstly filling the bottom groove (8) with concrete, leaving part of the concrete at the bottom of the bottom groove (8), inserting a plurality of long rods (42) into the straight barrel groove (6), inserting the bottom of the long rods (42) into the concrete, then injecting concrete into the bottom groove (8), and then inserting a plurality of short rods (41) into the bottom groove (8), wherein the plurality of short rods (41) and the long rods (42) are arranged in an alternating manner; S5, a ring tie (43) is placed on a plurality of short rods (41) and long rods (42), and then concrete is injected. After a portion 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).

8. The soft foundation treatment method according to claim 7, characterized in that: The excavating device (5) in S1 comprises a rotating rod (51), a rotating head (52) is fixedly mounted at the bottom of the rotating rod (51), a scraping bar (53) is slidably arranged on the rotating head (52), and mud scrapers 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 mud scrapers at both ends of the scraping bar (53) scrape the side wall of the straight barrel groove (6).

9. The soft foundation treatment method according to claim 8, characterized in that: A toothed plate (54) is fixed on the upper side of the scraping bar (53), 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 toothed plate (54) are meshed, the gear rotates to drive the toothed plate (54) to move, so that the scraping bar (53) moves on the rotating head (52), and the depth of the scraping bar (53) digging the side wall of the straight barrel groove (6) changes.

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