Component for improving horizontal bearing capacity of steel screw pile

By installing funnel-shaped components and limiting discs on the outer surface of the steel helical piles, the soil is compacted, which solves the problem of insufficient bearing capacity caused by soil disturbance in loose areas and improves the stability and pull-out resistance of the pile foundation.

CN224063402UActive Publication Date: 2026-03-31NAT NUCLEAR POWER PLANNING & DESIGN INST CHONGQING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

When steel spiral piles are used in loose, medium-dense silty sand areas, the disturbance of the soil around the piles leads to insufficient horizontal bearing capacity, making it difficult to meet the foundation requirements.

Method used

Funnel-shaped components and limiting plates are installed on the outer surface of the steel spiral pile. The cutting action of the limiting plate softens the soil, and the funnel-shaped components compact the soil to increase the density of the soil around the pile. Combined with T-shaped connecting blocks and bolt connections, the installation stability is improved.

Benefits of technology

It enhances the horizontal bearing capacity of the steel helical piles, improves the stability and pull-out resistance of the pile foundation, and prevents loosening.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of improving the horizontal bearing capacity of a steel screw pile, and particularly relates to a component for improving the horizontal bearing capacity of the steel screw pile, which comprises a steel screw pile, the top of the steel screw pile is movably connected with a pile machine connecting piece, and the bottom of the steel screw pile is fixedly connected with a steel cone; the bearing mechanism is used for increasing the horizontal bearing capacity of the steel screw pile; the bearing mechanism comprises a funnel-shaped component, the funnel-shaped component is fixedly installed on the outer surface of the steel screw pile, three reinforcing ribs are jointly and fixedly connected between the inner wall of the funnel-shaped component and the steel screw pile, and two limiting discs are fixedly installed on the outer surface of the steel screw pile. The pile machine connecting piece is rotated to drive the limiting disc to rotate relative to soil so that the steel screw pile can go deep into the ground, at the moment, the soil can become soft under the action of the limiting disc, the soil around the steel screw pile can be compacted through the funnel-shaped component when the steel screw pile is installed, and then the horizontal bearing capacity of the steel screw pile is increased.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field that improves the horizontal bearing capacity of steel spiral pile, and specifically relates to a component for improving the horizontal bearing capacity of steel spiral pile. BACKGROUND

[0002] The steel spiral pile is a kind of steel pile with spiral blades welded on the body of steel pipe pile, and is constructed by mechanical rotation. It is a hollow pile in the shape of a cylinder, has excellent strength performance, is economical and durable, and is a kind of spiral pile widely used. The diameter of the body of small-diameter steel spiral pile is generally 80-120mm, and the blades of the body effectively improve the vertical bearing capacity and uplift bearing capacity. In terms of economy and technical indicators, the steel spiral pile is very suitable for photovoltaic support foundation in clay and sandy soil areas.

[0003] The diameter of the body of the steel bolt pile is smaller than that of conventional cast-in-place piles and prefabricated pipe piles. The ground surface in desert areas is mostly loose and medium-dense silt, and the proportion coefficient m value of the horizontal resistance coefficient of foundation soil is small. Therefore, the horizontal bearing capacity of pile foundation often cannot meet the requirements.

[0004] During actual use, the compactness of soil around the pile will affect the horizontal bearing capacity. When the spiral pile is rotated into construction, the cutting action of the blades will form a disturbed zone around the pile. The disturbance degree is the largest at the upper part of the blades, and the compactness of soil around the pile decreases after disturbance, which reduces the horizontal bearing capacity of the pile foundation and easily causes the steel bolt pile to loosen.

[0005] Therefore, a component for improving the horizontal bearing capacity of steel spiral pile is provided to solve the above problems. UTILITY MODEL CONTENTS

[0006] In order to make up for the deficiencies of the prior art and solve the existing problems, a component for improving the horizontal bearing capacity of steel spiral pile is provided.

[0007] The utility model discloses a kind of components for improving the horizontal bearing capacity of steel spiral pile, including steel spiral pile, the steel spiral pile top movably connects with pile machine connecting piece, the steel spiral pile bottom is fixedly connected with steel cone;

[0008] It further includes a bearing mechanism for increasing the horizontal bearing capacity of the steel spiral pile.

[0009] The bearing mechanism includes a funnel-shaped component, which is fixedly installed on the outer surface of the steel spiral pile. Three reinforcing ribs are fixedly connected between the inner wall of the funnel-shaped component and the steel spiral pile. Two limiting discs are fixedly installed on the outer surface of the steel spiral pile.

[0010] Preferably, the top of each of the two limiting discs is provided with a separation groove, and the two separation grooves are on the same vertical plane.

[0011] Preferably, the top of the steel screw pile is fixedly provided with a connecting piece, two installation grooves are formed in the outer surface of the connecting piece, and a first threaded hole is formed in the inner wall of the installation groove.

[0012] Preferably, a T-shaped connecting block is slidably arranged on the inner surface of the installation groove, limit blocks are fixedly arranged on the two sides of the T-shaped connecting block, and a second threaded hole is formed in one side of the T-shaped connecting block.

[0013] Preferably, a sliding groove is formed in one side of the pile machine connecting piece, and two limiting grooves are formed in the inner wall of the sliding groove.

[0014] Preferably, the T-shaped connecting block is slidably arranged in the inner cavity of the sliding groove, the two limit blocks are slidably arranged on the inner surfaces of the two limiting grooves, and the two second threaded holes and the first threaded hole are internally and threadedly connected with a bolt.

[0015] The utility model discloses a beneficial effect:

[0016] 1. The utility model provides a kind of component for improving the horizontal bearing capacity of steel screw pile, by aligning and inserting steel cone to ground, at this time, steel screw pile is in vertical state, by personnel by rotating pile machine connecting piece drive limit disc and soil occur relative rotation and then make steel screw pile penetrate into underground, in this process, the soil at the top of limit disc becomes soft under the action of limit disc, and then lead to the insufficient soil density around steel screw pile, reduce the horizontal bearing capacity of steel screw pile, by funnel component, the soil around steel screw pile can be compacted when installing steel screw pile, and then increase the horizontal bearing capacity of steel screw pile.

[0017] 2. The utility model provides a kind of component for improving the horizontal bearing capacity of steel screw pile, by two T-shaped connecting blocks connecting connecting piece and T-shaped connecting block, by bolt, increase the tightness of T-shaped connecting block and connecting piece connection, when installing, limit block is slid on the inner surface of limiting groove, can avoid that T-shaped connecting block top separates from sliding groove, by the pile machine connecting piece of growth on the top of steel screw pile, it can be convenient for staff to install steel screw pile into soil. ACCURATE DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the present application, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation on the utility model. In the drawings:

[0019] Figure 1 It is the overall structure schematic diagram of the utility model;

[0020] Figure 2 It is the steel screw pile connecting structure schematic diagram of the utility model;

[0021] Figure 3 is the T-shaped connecting block installation structure schematic view of the utility model;

[0022] Figure 4 is the limiting groove connection structure schematic view of the utility model.

[0023] Legend: 1, steel spiral pile;11, steel cone;2, limiting disc;21, separation groove;3, funnel-shaped component;31, reinforcing rib;4, connecting piece;41, installation groove;411, first threaded hole;5, T-shaped connecting block;51, limiting block;52, second threaded hole;53, bolt;6, pile machine connecting piece;61, sliding groove;611, limiting groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] The specific embodiments are given below.

[0026] Please refer to Figures 1-4 The utility model provides a kind of component for improving the horizontal bearing capacity of steel spiral pile, including steel spiral pile 1, the steel spiral pile 1 top is movably connected with pile machine connecting piece 6, the steel spiral pile 1 bottom is fixedly connected with steel cone 11;It further includes bearing mechanism, for increasing the horizontal bearing capacity of steel spiral pile 1;The bearing mechanism includes funnel-shaped component 3, the funnel-shaped component 3 is fixedly installed on the outer surface of steel spiral pile 1, three reinforcing ribs 31 are fixedly connected between the inner wall of funnel-shaped component 3 and steel spiral pile 1, and two limiting discs 2 are fixedly installed on the outer surface of steel spiral pile 1.

[0027] When installing steel bolt pile, due to the cutting effect of limiting disc 2, disturbance zone can be formed near steel spiral pile 1, the disturbance degree is maximum at upper part of upper limiting disc 2, the compaction degree of soil around steel spiral pile 1 is reduced after disturbance, and the horizontal bearing capacity of pile foundation is reduced.

[0028] The utility model discloses a steel spiral pile 1 is inserted to the soil through connecting piece 4, and when using makes two T-shaped connecting blocks 5 install in the inner chamber of two installation grooves 41 respectively, then through bolt 53 can fix T-shaped connecting block 5 and connecting piece 4 with the second threaded hole 52 and first threaded hole 411 are penetrated, and when installing, the limiting block 51 is slid on the inner surface of the limiting groove 611, can avoid T-shaped connecting block 5 to separate from the pile machine connecting piece 6, and also convenient for connecting the pile machine connecting piece 6 and connecting piece 4.

[0029] Further, as shown in Figure 2 Two limiting discs 2 top are all provided with the separation groove 21, and two separation grooves 21 are in the same vertical plane.

[0030] Further, as shown in Figure 2 And Figure 4 Connecting piece 4 is fixedly installed on the top of steel spiral pile 1, two installation grooves 41 are formed on the outer surface of connecting piece 4, and first threaded hole 411 is formed on the inner wall of installation groove 41.

[0031] T-shaped connecting block 5 is slidably installed on the inner surface of installation groove 41, limiting block 51 is fixedly installed on the both sides of T-shaped connecting block 5, and second threaded hole 52 is formed on one side of T-shaped connecting block 5.

[0032] Slide groove 61 is formed on one side of pile machine connecting piece 6, and two limiting grooves 611 are formed on the inner wall of slide groove 61.

[0033] T-shaped connecting block 5 is slidably installed in the inner cavity of slide groove 61, two limiting blocks 51 are slidably installed on the inner surface of two limiting grooves 611 respectively, and bolt 53 is threadedly connected inside two second threaded holes 52 and first threaded hole 411.

[0034] The utility model discloses a steel spiral pile 1 is inserted to the soil through connecting piece 4, and when using makes two T-shaped connecting blocks 5 install in the inner chamber of two installation grooves 41 respectively, then through bolt 53 can fix T-shaped connecting block 5 and connecting piece 4 with the second threaded hole 52 and first threaded hole 411 are penetrated, and when installing, the limiting block 51 is slid on the inner surface of the limiting groove 611, can avoid T-shaped connecting block 5 to separate from the pile machine connecting piece 6, and also convenient for connecting the pile machine connecting piece 6 and connecting piece 4.

[0035] Working principle: the utility model discloses in use, first the steel cone 11 is aligned and is inserted to the ground, at this time steel spiral pile 1 is in vertical state, through personnel drives limiting disc 2 and soil to occur relative rotation and thus makes steel spiral pile 1 penetrate to the ground in the pile machine connecting piece 6, in this process, the soil at the top of limiting disc 2 becomes soft under the action of limiting disc 2, and thus leads to the soil density around steel spiral pile 1, reduces the horizontal bearing capacity of steel spiral pile 1, through the hopper type component 3 can be installed steel spiral pile 1 when steel spiral pile 1 around soil compaction, and thus increase the horizontal bearing capacity of steel spiral pile 1.

[0036] Two T-shaped connecting blocks 5 are connected by connecting piece 4 and T-shaped connecting block 5, and the tightness of the connection between T-shaped connecting block 5 and connecting piece 4 is increased by bolt 53, limiting block 51 slides in the inner surface of limiting groove 611 during installation, which can avoid the top of T-shaped connecting block 5 from separating from sliding groove 61, and pile machine connecting piece 6 grown on the top of steel spiral pile 1 can facilitate workers to install steel spiral pile 1 into the soil.

[0037] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements fall within the scope of the claimed utility model.

Claims

1. A component for improving the horizontal bearing capacity of a steel screw pile, comprising a steel screw pile (1), a pile machine connector (6) movably connected to the top of the steel screw pile (1), and a steel cone (11) fixedly connected to the bottom of the steel screw pile (1). It also comprises a bearing mechanism for increasing the horizontal bearing capacity of the steel screw pile (1). characterized in that The bearing mechanism comprises a funnel-shaped component (3) fixedly installed on the outer surface of the steel screw pile (1), three reinforcing ribs (31) fixedly connected between the inner wall of the funnel-shaped component (3) and the steel screw pile (1), and two limiting discs (2) fixedly installed on the outer surface of the steel screw pile (1).

2. The component for improving the horizontal bearing capacity of the steel screw pile according to claim 1, characterized in that: The top of each of the two limiting discs (2) is provided with a separation groove (21), and the two separation grooves (21) are located on the same vertical plane.

3. The component for improving the horizontal bearing capacity of the steel screw pile according to claim 2, characterized in that: The top of the steel screw pile (1) is fixedly provided with a connector (4), the outer surface of the connector (4) is provided with two installation grooves (41), and the inner wall of each installation groove (41) is provided with a first threaded hole (411).

4. The component for improving the horizontal bearing capacity of the steel screw pile according to claim 3, characterized in that: A T-shaped connecting block (5) is slidably installed on the inner surface of the installation groove (41), limiting blocks (51) are fixedly installed on both sides of the T-shaped connecting block (5), and a second threaded hole (52) is formed in one side of the T-shaped connecting block (5).

5. The component for improving the horizontal bearing capacity of the steel screw pile according to claim 4, characterized in that: A sliding groove (61) is formed in one side of the pile machine connector (6), and two limiting grooves (611) are formed in the inner wall of the sliding groove (61).

6. The component for improving the horizontal bearing capacity of the steel screw pile according to claim 5, characterized in that: The top of the T-shaped connecting block (5) is slidably installed in the inner cavity of the sliding groove (61), the two limiting blocks (51) are respectively slidably installed on the inner surfaces of the two limiting grooves (611), and the two second threaded holes (52) and the first threaded hole (411) are internally threadedly connected with a bolt (53).