Combined highway subgrade gravel pile

Abstract

The utility model provides a combined highway subgrade gravel pile and relates to the technical field of CN214194485U. The combined highway subgrade gravel pile comprises a vibroflot main body and a flange, convex teeth are arranged on the surface of the vibroflot main body, the vibroflot main body and the convex teeth are connected in a welding mode, a centrifugal shaft main body is arranged at the bottom of the vibroflot main body, and the vibroflot main body and the centrifugal shaft main body are connected in a tight sliding mode. The spiral blades are arranged on the surface of the centrifugal shaft body, the centrifugal shaft body and the spiral blades are connected in a seamless welding mode, the six-edge plum blossom-shaped structure is adopted for the head of the guide rod, the vibroflotation blades are additionally arranged, and the spiral blades are arranged on the surface of the centrifugal shaft body, so that the comprehensive performance is improved, the adaptability is enhanced, and the centrifugal shaft is suitable for viscous or water-containing soil layers; the failure rate is reduced through structure optimization, efficient hole forming, continuous dumping and stable vibration are achieved through cooperation of the mechanical advantages of the six-edge structure, the crushing capacity of the vibroflotation blades and the dumping function of the spiral blades, and the six-edge vibroflotation machine is particularly suitable for engineering construction under the complex geological condition.

Description

Technical Field

[0001] This utility model relates to the technical field of CN214194485U, and in particular to a combined roadbed crushed stone pile. Background Technology

[0002] According to Chinese Patent No. 111, a crushed stone pile for highway subgrade construction includes a top cover, a pile body, and a drill bit. The top cover is movably installed on the top of the pile body, and a lead screw is movably installed inside the pile body. Second slide rails are fixedly installed inside the pile body on both sides of the lead screw. Fixing blocks are fixedly installed on both sides of the pile body at the bottom of the pressing block, and a pressing rod is movably installed on the top of the fixing block. A spring is fixedly installed inside the pile body at the top of the pressing rod, and first slide rails are fixedly installed on both sides of the pile body at the bottom of the pressing rod. A drill bit is fixedly installed at the bottom of the pile body, and push rods are fixedly installed through the drill bit at the bottom of the first slide rails on both sides of the lead screw. This invention, by providing the pressing rod and push rod, can guide the pressing rod and push rod into the soil layer outside the pile body, thereby increasing the pull-out resistance of the device. The springs can seal the device when the pressing rod is not pushed out.

[0003] The aforementioned prior art and related documents have the following technical problems:

[0004] 1. Insufficient adaptability to special locations, affecting the quality of pile formation in saturated soft clay or highly sensitive soil. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a combined roadbed crushed stone pile.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a combined highway subgrade crushed stone pile, comprising a vibratory compactor body and a flange, wherein the vibratory compactor body has protruding teeth on its surface, and the vibratory compactor body and the protruding teeth are connected by welding; the bottom of the vibratory compactor body is provided with a centrifugal shaft body, and the vibratory compactor body and the centrifugal shaft body are connected by tight sliding connection; the surface of the centrifugal shaft body is provided with a spiral blade, and the centrifugal shaft body and the spiral blade are connected by seamless welding.

[0007] Preferably, the centrifugal shaft body has a plum blossom base at its bottom, and the centrifugal shaft body and the plum blossom base are connected by bolts. The cross-section of the centrifugal shaft body and the cross-section generated by the corners of the plum blossom base are the same size.

[0008] Preferably, the bottom of the plum blossom base is connected to a vibratory punching blade by welding, and the vibratory punching blade is distributed in a circumferential array at the bottom of the plum blossom base.

[0009] Preferably, the vibratory impactor body is hollowed out by cutting, and a secondary high-pressure water pipe is provided in the center of the vibratory impactor body. A high-pressure water pipe is provided at the top of the secondary high-pressure water pipe, and the high-pressure water pipe and the secondary high-pressure water pipe are slidably connected. The surface of the secondary high-pressure water pipe is provided with a sealing groove.

[0010] Preferably, the vibratory impactor body has an air pump body at the top inside, and the vibratory impactor body and the air pump body are connected by threads.

[0011] Preferably, the air pump body is symmetrically distributed inside the vibratory impactor body with the high-pressure water pipe as the center line, and the bottom of the air pump body is provided with an air pump telescopic rod, which extends to the top of the centrifugal shaft body.

[0012] Preferably, the high-pressure water pipe has a flange at the top opening, and the high-pressure water pipe and the flange are connected by welding, and the two flanges are connected and fixed by bolts.

[0013] Beneficial effects

[0014] In this invention, a hexagonal plum blossom-shaped structure is used at the head of the guide rod, and vibratory impact blades are added. A spiral blade is also installed on the surface of the centrifugal shaft body. The hexagonal honeycomb structure disperses stress, reducing weight while maintaining rigidity. The multi-sided design enhances torque resistance and prevents twisting during vibration. The gaps or channels between the edges help discharge waste soil or mud. The vibratory impact blades enhance crushing efficiency, and the high-frequency vibration of the blades crushes hard soil layers, increasing the hole-forming speed. Overall performance is improved, and adaptability is enhanced, making it suitable for cohesive or water-bearing soil layers. Structural optimization reduces the failure rate. Through the synergistic effect of the mechanical advantages of the hexagonal structure, the crushing capacity of the vibratory impact blades, and the soil-discharging function of the spiral blades, efficient hole-forming, continuous soil discharge, and stable vibration are achieved, making it particularly suitable for engineering construction under complex geological conditions.

[0015] In this invention, an air pump is used to extend and connect the guide rod head, dynamically adjusting the construction depth to adapt to different soil layer requirements. It optimizes the crushing effect, especially in strata with uneven softness and hardness. The linear displacement control of the cylinder can achieve millimeter-level precision, ensuring that the guide rod head accurately reaches the target position, buffering vibration impact, absorbing high-frequency vibration energy, reducing rigid impact on the main unit, and enhancing the compaction effect. The extension and retraction of the cylinder allows the vibratory blades at the guide rod head to flexibly adjust the force and frequency of action in different soil layers, ensuring the compaction effect on the fill material and improving the bearing capacity of the pile. Attached Figure Description

[0016] Figure 1 This is a main body diagram of the present utility model;

[0017] Figure 2 This is a front sectional view of the present invention;

[0018] Figure 3This is a side sectional view of the present invention;

[0019] Figure 4 This is a detailed drawing of the guide rod head of this utility model;

[0020] Figure 5 This is a detailed drawing of the high-pressure water pipe of this utility model.

[0021] Legend:

[0022] 1. Raised teeth; 2. Flange; 3. High-pressure water pipe; 4. Sealing groove; 5. Secondary high-pressure water pipe; 6. Spiral blade; 7. Air pump body; 8. Air pump telescopic rod; 9. Vibratory impactor body; 10. Plum blossom base; 11. Centrifugal shaft body; 12. Vibratory impactor blade. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0026] Reference Figure 1-5A composite roadbed crushed stone pile includes a vibratory compactor body 9 and a flange 2. The vibratory compactor body 9 has protruding teeth 1 on its surface, and the vibratory compactor body 9 and the protruding teeth 1 are connected by welding. A centrifugal shaft body 11 is located at the bottom of the vibratory compactor body 9, and the vibratory compactor body 9 and the centrifugal shaft body 11 are tightly slidably connected. The surface of the centrifugal shaft body 11 is provided with spiral blades 6, and the centrifugal shaft body 11 and the spiral blades 6 are connected by seamless welding. The flange 2 at the inlet of the high-pressure water pipe 3 and the upper guide rod flange are connected by bolts. When the vibratory compactor is started, water from the pump flows into the high-pressure water pipe 3 and the secondary high-pressure water pipe 5. Under the action of the centrifugal shaft body 11, the vibratory blades 12 at the front end of the vibratory compactor body 9 continuously vibrate and undergo settling motion. Simultaneously, water from the secondary high-pressure water pipe 5 is ejected from the circular holes surrounding the vibratory blades, impacting the hard soil layer. The process softens the soil, helping the vibratory impactor blade 12 to break up the soil layer. The resulting mud or waste is transported from the corner gaps of the plum blossom base 10 to the spiral blade 6 on the centrifugal shaft body 11 through vibration. The waste or mud is discharged through the spiral path. When it is necessary to adjust the depth of the blade head, the air pump body 7 is started, and the air pump telescopic rod 8 pushes the vibratory impactor blade 12 to adjust the depth. When the vibratory impactor encounters great resistance when drilling (such as soft soil layers or hard interlayers), the air pump telescopic rod 8 prevents the guide rod from retracting through the internal limiting component, so that the vibratory impactor maintains a stable downward pressure, ensuring self-drilling, avoiding the need for additional drilling assistance, and improving construction efficiency. When compacting the pile body, the segmented rigid structure of the telescopic rod can effectively transmit high-frequency vibration energy to the pile end. Combined with the high-pressure water jetting, the crushed stone filling is uniformly compacted throughout the entire pile body, improving the compaction and integrity of the pile body. Specific Implementation Example 2:

[0028] Reference Figure 1-5 Based on the basic structure in Specific Embodiment 1, in order to improve maintenance convenience, the hexagonal head and the spiral blade 6 can be set to be disassembled and assembled independently to reduce maintenance costs. The blade can be treated with tungsten carbide coating for wear resistance to extend service life.

[0029] In summary;

[0030] 1. The guide rod head uses a hexagonal plum blossom-shaped structure and adds vibratory impact blades. The centrifugal shaft body surface is equipped with spiral blades. Through the mechanical advantages of the hexagonal structure, the crushing capacity of the vibratory impact blades and the soil removal function of the spiral blades, efficient hole formation, continuous soil removal and stable vibration are achieved. It is especially suitable for engineering construction under complex geological conditions.

[0031] 2. The guide rod head is connected by an air pump, which dynamically adjusts the construction depth to meet the needs of different soil layers, ensuring the compaction effect of the fill material and improving the bearing capacity of the pile.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combined highway embankment stone column comprising a vibrator body (9) and a flange (2), characterized in that: The vibratory shock body (9) has protruding teeth (1) on its surface, and the vibratory shock body (9) and the protruding teeth (1) are connected by welding. The vibratory shock body (9) has a centrifugal shaft body (11) at its bottom, and the vibratory shock body (9) and the centrifugal shaft body (11) are connected by tight sliding. The centrifugal shaft body (11) has a plum blossom base (10) at its bottom, and the centrifugal shaft body (11) and the plum blossom base (10) are connected by bolts. The centrifugal shaft body (11) has a spiral blade (6) on its surface, and the centrifugal shaft body (11) and the spiral blade (6) are connected by seamless welding. The vibratory shock body (9) has an air pump body (7) at its top inside, and the air pump body (7) has an air pump telescopic rod (8) at its bottom, and the air pump telescopic rod (8) extends to the top of the centrifugal shaft body (11).

2. A combined highway embankment stone column according to claim 1, characterized in that: The cross-section of the centrifugal shaft body (11) and the cross-section generated by the corner of the plum blossom base (10) are the same size.

3. The combined highway embankment stone pile according to claim 1, characterized in that: The bottom of the plum blossom base (10) is connected to a vibratory punching blade (12) by welding, and the vibratory punching blade (12) is distributed in a circular array at the bottom of the plum blossom base (10).

4. The combined highway embankment stone column according to claim 1, characterized in that: The vibratory impactor body (9) is hollow inside by cutting, and a secondary high-pressure water pipe (5) is provided in the center of the vibratory impactor body (9). A high-pressure water pipe (3) is provided on the top of the secondary high-pressure water pipe (5), and the high-pressure water pipe (3) and the secondary high-pressure water pipe (5) are connected by sliding connection. A sealing groove (4) is provided on the surface of the secondary high-pressure water pipe (5).

5. The combined highway embankment stone column according to claim 1, characterized in that: The vibratory shock body (9) and the air pump body (7) are connected by threads.

6. A combined highway embankment stone column according to claim 4, characterized in that: The air pump body (7) is symmetrically distributed inside the vibratory impactor body (9) with the high-pressure water pipe (3) as the center line.

7. A combined highway embankment stone column as claimed in claim 4, characterized in that: The high-pressure water pipe (3) has a flange (2) at the top opening, and the high-pressure water pipe (3) and the flange (2) are connected by welding. The two flanges (2) are connected and fixed by bolts.

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