Anti-floating steel pipe stirring composite pile

Abstract

The utility model relates to the technical field of pile foundation engineering, in particular to an anti-floating steel pipe stirring composite pile which comprises cement soil and a steel pipe arranged in the cement soil, the steel pipe is arranged in the cement soil, concrete is poured in the steel pipe, rib plates are arranged on the outer wall of the steel pipe, the cement soil is located below a structural bottom plate, and the rib plates are arranged on the outer wall of the steel pipe. And the tops of the steel pipes extend out of the cement soil and are fixedly connected with the structural bottom plate through connecting steel plates to form an integral structure. The utility model has the advantages that the peripheral large-diameter mixing pile is adopted to obtain the frictional resistance of the peripheral soil layer, and the steel pipe of the pile core bears and transmits the upward buoyancy; respective characteristics of rigid and flexible composite piles are fully exerted, stress is reasonable, and the advantages of being large in anti-floating capacity, easy to construct and low in manufacturing cost are achieved; the method can be widely applied to structural anti-floating projects of various existing buildings (such as houses, tunnels, U-shaped grooves and the like), and has a wide application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation engineering, in particular to an anti-floating steel pipe mixing composite pile. Background Art

[0002] Existing structures generally use pile foundations or anti-floating anchor rods to prevent floating. The anti-floating piles have limited side friction and are expensive. The anti-floating anchor rods have a small diameter and limited anti-floating capacity. Summary of the Invention

[0003] The purpose of this utility model is to provide a steel pipe mixing composite pile for anti-floating based on the above-mentioned deficiencies of the existing technology. The steel pipe mixing composite pile is used as an anti-floating pile, and a large-diameter mixing pile on the periphery is used to obtain the friction resistance of the surrounding soil layer. The upward buoyancy is borne and transmitted by the steel pipe of the pile core to achieve anti-floating.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A steel pipe mixing composite pile for anti-floating, characterized in that it includes cement soil and a steel pipe inside the pile, the steel pipe is arranged inside the cement soil, concrete is poured inside the steel pipe, the outer wall of the steel pipe is provided with ribs, the cement soil is located below the structural bottom plate, the top of the steel pipe protrudes from the cement soil and is fixedly connected to the structural bottom plate through a connecting steel plate to form an integral structure.

[0006] The ribs are evenly spaced along the length of the steel pipe.

[0007] The ribs are symmetrically arranged along the circumference of the steel pipe.

[0008] A stirring head is provided at the bottom of the steel pipe.

[0009] The steel pipe is extended by threading and welding.

[0010] The advantages of this utility model are: large-diameter mixing piles are used on the periphery to obtain the friction resistance of the surrounding soil layer, and the upward buoyancy is borne and transmitted by the steel pipe of the pile core; the respective characteristics of the rigid-flexible composite piles are fully utilized, the force is reasonable, and the piles have the advantages of large anti-floating ability, simple construction and low cost; the piles can be widely used in structural anti-floating projects of various existing buildings (such as houses, tunnels, U-grooves, etc.), and have broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0012] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0013] like Figure 1 As shown, marks 1-7 in the figure respectively represent: steel pipe mixing composite anti-floating pile 1, cement soil 2, concrete 3, steel pipe 4, rib plate 5, connecting steel plate 6, and structural bottom plate 7.

[0014] Example: Figure 1 As shown, the main body of the anti-floating steel pipe mixing composite pile in this embodiment is a steel pipe mixing anti-floating pile 1. The steel pipe mixing anti-floating pile 1 is constructed at the same time as the structural base plate 7 of the underground building to play an anti-floating role for the underground building after construction.

[0015] Specifically, the steel pipe-mixed composite anti-floating pile 1 comprises an outer layer of cement soil 2 and an inner steel pipe 4, which is filled with concrete 3. The cement soil 2 is positioned below a structural base plate 7. The length of the steel pipe 4 matches the depth of the cement soil 2, and the top of the steel pipe 4 extends beyond the structural base plate 7 and is securely connected via a connecting steel plate 6 and bolts. The large-diameter mixing pile formed by the cement soil 2 absorbs the frictional resistance of the surrounding soil layer, while the steel pipe 4, inserted into the cement soil 2 as the pile core, bears and transmits the upward buoyancy force, thereby achieving anti-floating properties for underground structures.

[0016] In order to ensure that the steel pipe 4 reaches the designed length, when the designed length of the steel pipe 4 is long, several steel pipe segments can be connected by threading and welding.

[0017] In this embodiment, a plurality of ribs 5 are provided on the exterior of the steel tube 4. The ribs 5 are evenly spaced along the length of the steel tube 4 to improve the connection between the steel tube 4 and the cement soil 2, thereby improving the structural performance of the steel tube mixing composite anti-floating pile 1. Preferably, the ribs 5 are symmetrically arranged along the circumference of the steel tube 4 to evenly improve the connection between the steel tube 4 and the cement soil 2.

[0018] A mixing head is provided at the bottom of the steel pipe 4. When the steel pipe 4 rotates and sinks, cement soil 2 is formed by synchronous grouting, thereby realizing the construction of a large-diameter mixing pile.

[0019] Although the above embodiments have described the concepts and embodiments of the present invention in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, so they are not described here one by one.

Claims

1. An anti-floating steel pipe mixing composite pile, characterized by: It includes cement soil and a steel pipe inside it, the steel pipe is arranged inside the cement soil, the interior of the steel pipe is poured with concrete, the outer wall of the steel pipe is provided with ribs, the cement soil is located below the structural bottom plate, the top of the steel pipe protrudes from the cement soil and is fixedly connected to the structural bottom plate through a connecting steel plate to form an integral structure.

2. The anti-floating steel pipe mixing composite pile according to claim 1, characterized in that: The ribs are evenly spaced along the length of the steel pipe.

3. The anti-floating steel pipe mixing composite pile according to claim 2, characterized in that: The ribs are symmetrically arranged along the circumference of the steel pipe.

4. The anti-floating steel pipe mixing composite pile according to claim 1, characterized in that: A stirring head is provided at the bottom of the steel pipe.

5. The anti-floating steel pipe mixing composite pile according to claim 1, characterized in that: The steel pipe is extended by threading and welding.

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