High-strength PHC tubular pile
By designing a composite layer structure on PHC pipe piles, including a base layer, a rigid reinforcement layer, a rigid layer, and a protective coating, the problem of insufficient strength and stability of PHC pipe piles in complex environments is solved, achieving high strength and long service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-20
AI Technical Summary
When faced with complex and ever-changing external environmental conditions, the structural strength and stability of existing PHC pipe piles are easily eroded and damaged, leading to a decrease in bearing capacity and a shortened service life.
The composite layer structure includes a base layer, a rigid reinforcement layer, a rigid layer, a protective coating, and connectors, which enhances the overall strength and impact resistance of the pipe pile through the combination of multiple materials.
It significantly improves the structural strength and stability of PHC pipe piles, extends their service life, and enhances their resistance to external environmental factors.
Smart Images

Figure CN224016289U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building construction, specifically is a high strength's PHC pipe pile. BACKGROUND
[0002] Building construction is an important production activity in the implementation phase of engineering construction, which covers the whole process from design drawings to the transformation of actual buildings. In this process, not only the functionality, safety and economy of the project need to be considered, but also the impact on the environment during construction should be minimized. In order to achieve these goals, it is crucial to choose appropriate building materials and techniques. Among them, high-strength prestressed concrete pipe pile (PHC pipe pile) is widely used in many large or complex engineering projects due to its unique advantages.
[0003] After searching, the publication number is CN219671328U, and the name is PHC pipe pile, which includes PHC pipe pile, the inside of the PHC pipe pile is provided with a second spiral stirrup section, the two ends of the second spiral stirrup section are provided with a first spiral stirrup section inside the PHC pipe pile, through research and analysis, it is found that, although there is the advantage of strong anti-cracking moment performance, but, to some extent, there are still the following shortcomings
[0004] As mentioned above, PHC (prestressed high-strength concrete) pipe pile is usually not made of multiple composite high-strength materials in actual application, and this structural characteristic makes it vulnerable when facing complex and variable external environmental conditions. These external environmental factors include chemical corrosion of acidic or alkaline soil, long-term immersion of groundwater, thermal expansion and contraction effect caused by extreme temperature changes, and irradiation of ultraviolet rays and other harmful rays, which may cause different degrees of erosion and damage to the PHC pipe pile. With the passage of time, this continuous environmental erosion will gradually weaken the structural strength and stability of the pipe pile, leading to internal steel corrosion, concrete surface spalling, and even cracking, which will seriously affect the bearing capacity and service life of the pipe pile. In order to solve the above technical problems, we have designed a high-strength PHC pipe pile. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of high-strength PHC pipe pile, with the advantages of high strength and long service life, solving the problem of low material strength of the body affecting service life.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of high-strength PHC pipe pile, including pipe pile body, the two sides of the pipe pile body are provided with connecting piece, the pipe pile body includes composite layer, the surface of the composite layer is fixedly provided with second reinforcing layer, the outer side of the second reinforcing layer is fixedly provided with first reinforcing layer.
[0007] Preferably, the outer side of the first reinforcing layer is sprayed with a protective coating, which is made of an epoxy coating material.
[0008] Preferably, the composite layer comprises a base body, and a hard reinforcing layer is fixedly sleeved on the outer side of the base body.
[0009] Preferably, a rigid layer is fixedly sleeved on the outer side of the hard reinforcing layer, and the rigid layer is made of a siliceous concrete material.
[0010] Preferably, the base body is made of a high-strength concrete material, and the hard reinforcing layer is made of a concrete material containing a high-efficiency water-reducing agent.
[0011] Preferably, the connecting piece is hot-melt connected to the pipe pile body on the side close to the pipe pile body, and a positioning hole is formed in the right side of the connecting piece.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] The utility model discloses a positioning hole, connecting piece, protective coating, first reinforcing layer, second reinforcing layer, composite layer rigid layer, hard reinforcing layer and base body cooperate and use, realize an efficient and practical strength enhancement scheme, and these elements cooperate and use each other, not only embody the innovativeness on the design, but also show the excellent performance in the actual application scene. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0015] Figure 2 It is the three-dimensional sectional view schematic of the local structure of the utility model Figure 1 ;
[0016] Figure 3 It is the three-dimensional sectional view schematic of the local structure of the utility model Figure 2 .
[0017] In the figure: 1, the pipe pile body; 2, positioning hole; 3, connecting piece; 4, protective coating; 5, the first reinforcing layer; 6, the second reinforcing layer; 7, composite layer; 8, rigid layer; 9, hard reinforcing layer; 10, base body. DETAILED DESCRIPTION
[0018] Please see Figures 1-3 A high-strength PHC pipe pile, comprising a pipe pile body 1, both sides of the pipe pile body 1 are provided with connecting pieces 3, by setting the connecting pieces 3, the pipe pile body 1 can be fixed during installation, thereby achieving better fixed installation effect, the pipe pile body 1 comprises a composite layer 7, the surface of the composite layer 7 is fixedly sleeved with a second reinforcing layer 6, and the outer side of the second reinforcing layer 6 is fixedly sleeved with a first reinforcing layer 5.
[0019] Please see Figure 2 The outer side of the first reinforcing layer 5 is sprayed with a protective coating 4, by setting the protective coating 4, the substances in the external environment can be protected, thereby avoiding abrasion and chemical corrosion of the pipe pile body 1, and the protective coating 4 is made of epoxy coating material.
[0020] Please see Figure 2 The composite layer 7 comprises a base body 10, by setting the base body 10, the support strength of the composite layer 7 can be effectively improved by the way of external covering, and the outer side of the base body 10 is fixedly sleeved with a hard reinforcing layer 9.
[0021] Please see Figure 2 The outer side of the hard reinforcing layer 9 is fixedly sleeved with a rigid layer 8, by setting the rigid layer 8 and the hard reinforcing layer 9, the use strength of the main body can be effectively improved by adding additives in the concrete, and the rigid layer 8 is made of siliceous concrete material.
[0022] Please see Figure 2 The base body 10 is made of high-strength concrete material, and the hard reinforcing layer 9 is made of high-efficiency water-reducing agent concrete material.
[0023] Please see Figure 3 The side of the connecting piece 3 close to the pipe pile body 1 is hot melt connected with the pipe pile body 1, and the right side of the connecting piece 3 is provided with a positioning hole 2.
[0024] When in use, the substances in the external environment can be protected by the protective coating 4, so as to avoid the abrasion and chemical corrosion of the pipe pile body 1. The rigidity layer 8 and the hard reinforcing layer 9 can effectively improve the use strength of the main body by adding additives in the concrete. The base layer 10 can effectively improve the supporting strength of the composite layer 7 by the external covering. The connecting piece 3 can fix the pipe pile body 1 during the installation process, thereby achieving a good fixing and installation effect.
[0025] In conclusion: the high-strength PHC pipe pile solves the problem that the service life is easily affected due to the low material strength of the body by the cooperation of the positioning hole 2, the connecting piece 3, the protective coating 4, the first reinforcing layer 5, the second reinforcing layer 6 and the composite layer 7.
Claims
1. A high-strength PHC pipe pile, comprising a pipe pile body (1), characterized in that: The pipe pile body (1) is provided with connectors (3) on both sides. The pipe pile body (1) includes a composite layer (7). A second reinforcing layer (6) is fixedly sleeved on the surface of the composite layer (7). A first reinforcing layer (5) is fixedly sleeved on the outside of the second reinforcing layer (6).
2. The high-strength PHC pipe pile according to claim 1, characterized in that: The outer side of the first reinforcing layer (5) is coated with a protective coating (4), which is specifically made of epoxy coating material.
3. The high-strength PHC pipe pile according to claim 1, characterized in that: The composite layer (7) includes a base body (10), and a rigid reinforcing layer (9) is fixedly sleeved on the outside of the base body (10).
4. A high-strength PHC pipe pile according to claim 3, characterized in that: The rigid reinforcing layer (9) is fixedly fitted with a rigid layer (8) on its outer side, and the rigid layer (8) is specifically made of siliceous concrete material.
5. A high-strength PHC pipe pile according to claim 3, characterized in that: The base layer (10) is specifically made of high-strength concrete material, and the rigid reinforcing layer (9) is specifically made of concrete material containing high-efficiency water-reducing agent.
6. A high-strength PHC pipe pile according to claim 1, characterized in that: The connector (3) is heat-fused to the pipe pile body (1) on the side closest to the pipe pile body (1), and a positioning hole (2) is provided on the right side of the connector (3).
Citation Information
Patent Citations
PHC pipe pile
CN219671328U