Cloth bag pile for soft foundation treatment

Abstract

The utility model discloses a cloth bag pile for soft foundation treatment, which is characterized in that the top of a foundation is provided with a mounting hole, a grouting pipe is mounted in the mounting hole, the bottom of the grouting pipe is provided with grouting holes at equal intervals along the circumferential direction, the outer side of the grouting pipe is sleeved with a cloth bag, and the top end of the cloth bag is fixedly connected with a limiting round cloth strip; according to the limiting device, the positioning pins are used for positioning and fixing the pressing ring block, so that the pressing ring block can be tightly attached to the surface of the limiting circular cloth strip, the limiting ring block corresponds to the limiting ring groove, the pressing ring block can be tightly attached to the surface of the limiting circular cloth strip, the pressing ring block can be tightly attached to the limiting circular cloth strip, and the pressing ring block can be tightly attached to the limiting circular cloth strip. And part of the limiting circular cloth strip is extruded into the limiting ring groove, the limiting circular cloth strip is pressed and fixed, then the stability of the cloth bag is improved, and the situation that the top of the cloth bag shakes and falls off due to the fact that the cloth bag is impacted by grout in the mounting hole, and overall cloth bag pile construction is affected is prevented.

Description

Technical Field

[0001] This utility model relates to the field of bag pile technology, specifically a bag pile for soft foundation treatment. Background Technology

[0002] With the needs of urban development, there are more and more cases of construction in densely populated areas, and people's requirements for the environment are also getting higher and higher, resulting in more and more alarm interventions. This forces construction units or design units to find ways to reduce the impact on the environment. In recent years, the construction of new lines next to existing railway hubs has been increasing. Due to soft soil treatment, embankment filling and other construction, normal operation will be disturbed, affecting the stability and safe operation of the existing roadbed. In order to reduce the interference of construction on railway transportation, the use of bag grouting piles instead of high-pressure jet grouting piles for soft soil foundation treatment has become the common practice for railway construction in coastal soft soil sections.

[0003] However, currently, when grouting is performed on the bag, the top lacks a fixed limit, and the impact force generated by grouting can easily cause the bag to become unstable and fall downwards, affecting the construction of the overall bag pile. Therefore, this utility model provides a bag pile for soft foundation treatment to meet people's needs. Utility Model Content

[0004] This utility model provides a bag pile for soft foundation treatment, which can effectively solve the problem mentioned in the background art that the top of the bag lacks a fixed limit, and the impact force generated by grouting can easily cause the bag to become unstable and fall downward, affecting the construction of the overall bag pile.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bag pile for soft foundation treatment, comprising a foundation, an installation hole at the top of the foundation, a grouting pipe installed inside the installation hole, grouting holes equidistantly spaced at the bottom of the grouting pipe along the circumferential direction, a bag sleeved on the outside of the grouting pipe, a limiting circular cloth strip fixedly connected to the top of the bag, a pressing ring block fitted to the surface of the edge of the limiting circular cloth strip, positioning pins fixedly connected at equidistantly spaced at the bottom of the pressing ring block, a limiting ring block fixedly connected to the middle of the bottom of the pressing ring block, and a limiting ring groove opened at the top of the foundation on one side of the installation hole;

[0006] Support columns are equidistantly fitted to the surface of the grouting pipe along the circumferential direction, and connecting rods are fixedly connected at equal intervals to the middle of the support columns. Support rings are equidistantly installed inside the cloth bag.

[0007] Preferably, the limiting circular cloth strip is laid flat on the surface of the foundation, and one end of the limiting circular cloth strip is embedded in the interior of the limiting ring groove.

[0008] Preferably, the positioning pin is inserted into the foundation, the positions of the limiting ring block and the limiting ring groove correspond to each other, the limiting ring block is inserted into the limiting ring groove and is tightly fitted with the limiting circular cloth strip embedded in the limiting ring groove.

[0009] Preferably, the support ring is fitted against the inner wall of the bag, and the end of the connecting rod is connected to the support ring.

[0010] Preferably, the surface of the bag is fitted with vortex-shaped elastic metal strips at equal intervals, one end of each vortex-shaped elastic metal strip is fixedly connected to an installation block, and one end of the installation block has a through hole in the middle.

[0011] Preferably, one end of the vortex-shaped elastic metal strip is movable through the through hole, and the inner wall of the vortex-shaped elastic metal strip is in close contact with the surface of the cloth bag.

[0012] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0013] 1. A limiting circular cloth strip, a pressing ring block, a positioning pin, a limiting ring block, and a limiting ring groove are set up. The positioning pin is used to position and fix the pressing ring block, so that the pressing ring block can be tightly attached to the surface of the limiting circular cloth strip. The limiting ring block and the limiting ring groove correspond to each other, squeezing part of the limiting circular cloth strip into the limiting ring groove, which plays a role in pressing and fixing the limiting circular cloth strip, thereby improving the stability of the cloth bag and preventing the cloth bag from being impacted by grout inside the installation hole, causing its top to shake and fall, affecting the overall construction of the cloth bag pile.

[0014] 2. It is equipped with support columns, connecting rods, and support rings. The support columns and connecting rods work together to stabilize the position of the support rings, allowing the support rings to support and limit the inside of the grout bag, and to evenly expand and support the grout bag. This prevents the grout bag from becoming loose and swaying, which could cause uneven distribution of the grout bag during injection and result in uneven pile casting. It ensures the uniform expansion of the grout in the grout bag, thereby improving the overall structural strength of the pile. In addition, the support columns are close to the surface of the grouting pipe, which plays a role in positioning and stabilizing the grout bag, preventing the support columns and support rings from tilting or swaying.

[0015] 3. It is equipped with a spiral elastic metal strip, a mounting block, and a through hole. The spiral elastic metal strip and the mounting block work together to make it easy to tighten and fix the cloth bag, which improves the stability of the cloth bag after it is connected. One end of the spiral elastic metal strip is movable after passing through the through hole. It has elastic shaping properties, which ensures that the cloth bag can be tightened while expanding it with little effort. When the inside of the cloth bag is filled with slurry, it can be directly stretched open, making it more convenient and quick to use. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the limiting ring block of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the cloth bag of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the support ring of this utility model;

[0022] Figure 5 This is a schematic diagram of the installation structure of the mounting block of this utility model;

[0023] The following are labeled in the diagram: 1. Foundation; 2. Mounting hole; 3. Grouting pipe; 4. Grouting hole; 5. Cloth bag; 6. Limiting circular cloth strip; 7. Tightening ring block; 8. Positioning pin; 9. Limiting ring block; 10. Limiting ring groove; 11. Support column; 12. Connecting rod; 13. Support ring; 14. Vortex elastic metal strip; 15. Mounting block; 16. Through hole. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example: Figure 1-5As shown, this utility model provides a technical solution: a bag pile for soft foundation treatment, including a foundation 1, an installation hole 2 at the top of the foundation 1, a grouting pipe 3 installed inside the installation hole 2, grouting holes 4 evenly spaced along the circumferential direction at the bottom of the grouting pipe 3, a bag 5 sleeved on the outside of the grouting pipe 3, a limiting circular cloth strip 6 fixedly connected to the top of the bag 5, a pressing ring block 7 fitted to the surface of the edge of the limiting circular cloth strip 6, positioning pins 8 fixedly connected at evenly spaced along the circumferential direction at the bottom end of the pressing ring block 7, a limiting ring block 9 fixedly connected to the middle of the bottom end of the pressing ring block 7, a limiting ring groove 10 opened at the top of the foundation 1 on one side of the installation hole 2, and the limiting circular cloth strip 6 laid flat on the surface of the foundation 1. One end is embedded in the inside of the limiting ring groove 10, and the positioning pin 8 is inserted into the inside of the foundation 1. The positions of the limiting ring block 9 and the limiting ring groove 10 correspond to each other. The limiting ring block 9 is inserted into the inside of the limiting ring groove 10 and is tightly attached to the limiting round cloth strip 6 embedded in the limiting ring groove 10. The positioning pin 8 is used to position and fix the pressing ring block 7 so that the pressing ring block 7 can be tightly attached to the surface of the limiting round cloth strip 6. The limiting ring block 9 and the limiting ring groove 10 correspond to each other, squeezing part of the limiting round cloth strip 6 into the inside of the limiting ring groove 10, which plays a pressing and fixing role on the limiting round cloth strip 6, thereby improving the stability of the cloth bag 5 and preventing the cloth bag 5 from being impacted by grout inside the installation hole 2, causing its top to shake and fall, affecting the overall construction of the cloth bag pile.

[0026] Support columns 11 are equidistantly installed on the surface of the grouting pipe 3 along the circumferential direction. Connecting rods 12 are fixedly connected at equal intervals in the middle of the support columns 11. Support rings 13 are equidistantly installed inside the bag 5. The support rings 13 are in contact with the inner wall of the bag 5. The end of the connecting rod 12 is connected to the support ring 13. Through the cooperation of the support columns 11 and the connecting rod 12, the position of the support ring 13 is supported and stabilized, so that the support ring 13 supports and limits the inside of the bag 5, and provides uniform expansion support for part of the bag 5. This prevents the bag 5 from becoming loose and shaking, which would cause uneven distribution of the bag 5 when the grout is injected, resulting in uneven pile casting. This ensures the uniformity of grout expansion in the bag 5, thereby improving the overall structural strength of the pile. In addition, the support columns 11 are close to the surface of the grouting pipe 3, which plays a role in positioning and stabilizing, so that the support columns 11 and the support rings 13 will not tilt or shake.

[0027] The surface of the cloth bag 5 is equidistantly fitted with spiral elastic metal strips 14. One end of the spiral elastic metal strip 14 is fixedly connected to an installation block 15. A through hole 16 is opened in the middle of one end of the installation block 15. One end of the spiral elastic metal strip 14 moves through the through hole 16. The inner wall of the spiral elastic metal strip 14 is in close contact with the surface of the cloth bag 5. Through the cooperation of the spiral elastic metal strip 14 and the installation block 15, it is easy to tighten and fix the cloth bag 5, which improves the stability of the cloth bag 5 after being fitted. Moreover, the spiral elastic metal strip 14 is in a movable state after passing through the through hole 16. It has elastic shaping properties, which ensures that the cloth bag 5 can be tightened while expanding with little effort. When the inside of the cloth bag 5 is filled with slurry, it can be directly opened, making it more convenient and quick to use.

[0028] The working principle and usage process of this utility model are as follows: First, drilling holes 2 are made at the corresponding positions of the foundation 1, and a limiting ring groove 10 is made on one side of the surface of the foundation 1. The workers take the support column 11 and the support ring 13 and put them on the outside of the grouting pipe 3, so that the support column 11 is close to the surface wall of the grouting pipe 3. Then, the cloth bag 5 is put on the outside of the support ring 13. The support ring 13 will support the cloth bag 5 at equal intervals, so that part of the cloth bag 5 expands outward. Take multiple spiral elastic metal strips 14 and wrap them around the surface of the cloth bag 5 at equal intervals. The movable end of the spiral elastic metal strip 14 passes through the through hole 16 and is tightened, so that the spiral elastic metal strip 14 is close to the surface of the cloth bag 5, which plays a binding role for the cloth bag 5, so that the cloth bag 5 can be close to the outside of the grouting pipe 3. The spiral elastic metal strip 14 and the support ring 13 are staggered, so that the cloth bag 5 can be tightened while maintaining a partially expanded state.

[0029] Next, the grouting pipe 3 and the cloth bag 5 are inserted into the installation hole 2. The limiting circular cloth strip 6 is laid flat around the top of the installation hole 2 and covers the top of the limiting ring groove 10. The worker takes the pressing ring block 7 and presses it down to fit the limiting circular cloth strip 6. The limiting ring block 9 squeezes part of the limiting circular cloth strip 6 into the limiting ring groove 10 from above, while the positioning pin 8 is inserted into the foundation 1, so that the pressing ring block 7 is tightly attached to the surface of the limiting circular cloth strip 6. Both the limiting ring block 9 and the pressing ring block 7 press and fix the limiting circular cloth strip 6, which improves the stability of the top of the cloth bag 5.

[0030] During grouting, the external grout (cement grout) is discharged downwards through the grouting pipe 3. The grout gradually diffuses into the bag 5 from the grouting hole 4, filling the bag 5 from bottom to top. The support ring 13 expands and supports the bag 5, making the grout distribution inside the bag 5 more uniform. At the same time, the limiting circular cloth strip 6 at the top of the bag 5 is pressed and fixed, preventing the bag 5 from falling downwards when impacted by the grout. The grout causes the bag 5 to expand outwards, which compresses the vortex elastic metal strip 14. One end of the vortex elastic metal strip 14 is movable. When subjected to expansion and compression, it slides along the through hole 16, and the binding range expands as grout is added until the bag 5 is expanded and pressed tightly against the foundation 1. The soil hardness inside the weak foundation 1 varies, and it deforms when compressed by the grout inside the bag 5. Depending on the soil hardness, the shape and range of the grout and bag 5 expanding outward are different. The weak part is more easily pushed open by the grout, and the diameter of the shape is larger. The harder part is not easily compressed, and the diameter of the shape is smaller. As a result, the diameter of the bag pile is different at the top and bottom, which improves the stability of the bag pile inside the foundation 1.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bagged pile for soft ground treatment comprising a ground (1), characterized in that: The top of the foundation (1) is provided with a mounting hole (2), the inside of the mounting hole (2) is provided with a grouting pipe (3), the bottom of the grouting pipe (3) is provided with a grouting hole (4) equidistantly along the circumferential direction, the outside of the grouting pipe (3) is sleeved with a cloth bag (5), the top end of the cloth bag (5) is fixedly connected with a limiting circular cloth strip (6), the surface of the side of the limiting circular cloth strip (6) is attached with a pressing ring block (7), the bottom end of the pressing ring block (7) is fixedly connected with a positioning pin (8) equidistantly along the circumferential direction, the bottom end of the pressing ring block (7) is fixedly connected with a limiting ring block (9) in the middle, the top end of the foundation (1) is provided with a limiting ring groove (10) at one side of the mounting hole (2). The surface of the grouting pipe (3) is attached with a support column (11) equidistantly along the circumferential direction, the middle of the support column (11) is fixedly connected with a connecting rod (12), the inside of the cloth bag (5) is fixedly connected with a support ring (13).

2. The bagged pile for soft ground treatment according to claim 1, wherein The limiting circular cloth strip (6) is laid on the surface of the foundation (1), one end of the limiting circular cloth strip (6) is embedded in the inside of the limiting ring groove (10).

3. The bagged pile for soft ground treatment according to claim 1, wherein The positioning pin (8) is inserted into the inside of the foundation (1), the positions of the limiting ring block (9) and the limiting ring groove (10) correspond to each other, the limiting ring block (9) is inserted into the inside of the limiting ring groove (10) and closely attached with the limiting circular cloth strip (6) embedded in the inside of the limiting ring groove (10).

4. The bagged pile for soft ground treatment according to claim 1, wherein The support ring (13) is attached with the inner wall of the cloth bag (5), the end of the connecting rod (12) is connected with the support ring (13).

5. The bagged pile for soft ground treatment according to claim 1, wherein The surface of the cloth bag (5) is sleeved with a spiral elastic metal strip (14) equidistantly, one end of the spiral elastic metal strip (14) is fixedly connected with a mounting block (15), the middle of one end of the mounting block (15) is provided with a through hole (16).

6. A geotube pile for soft ground improvement according to claim 5, wherein One end of the spiral elastic metal strip (14) is movably penetrated through the through hole (16), the inner wall of the spiral elastic metal strip (14) is closely attached with the surface of the cloth bag (5).

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