一种钢管芯水泥土复合桩
By setting up reinforced blade groups on the outside of the steel pipe and designing sealing plates and cutting edges to form a mechanical interlocking structure, the problems of construction complexity and poor composite effect of traditional cement-soil mixing piles are solved, the compressive strength and integrity of composite piles are improved, and efficient foundation treatment is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGKEYUAN ARCHITECTURE DESIGN RES YUAN CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional cement-soil mixing piles suffer from complex construction processes and poor composite effects between steel pipe components and the pile body, resulting in poor pile formation and insufficient compressive strength, making it difficult to meet the requirements of high-strength foundations.
Multiple reinforcing blade groups are set on the outside of the steel pipe to form a mechanical interlocking structure of steel pipe, blades, cement soil and surrounding soil, increasing the contact area and restricting the displacement of steel pipe through the blades to form a synergistic force system. At the same time, a sealing plate and a central detection through hole are designed at the top of the steel pipe, and a cutting edge is designed at the bottom to ensure vertical insertion and detection.
It significantly improves the bond strength and compressive strength between the steel pipe and the pile, alleviates problems such as broken piles and necking, enhances the overall quality of foundation treatment and construction, reduces material consumption, and improves construction efficiency.
Smart Images
Figure CN224514193U_ABST
Abstract
Claims
1. A steel pipe core cement soil composite pile comprising a steel pipe (1) and a pile body (2), characterized in that, Multiple reinforcing blade groups (3) are provided on the outside of the steel pipe (1), and the multiple reinforcing blade groups (3) are arranged along the axial direction of the steel pipe (1); the reinforcing blade group (3) includes multiple blades (301), and the multiple blades (301) of the same reinforcing blade group (3) are fixed at intervals along the circumference of the steel pipe (1) on the outside of the steel pipe (1); the steel pipe (1) together with the multiple reinforcing blade groups (3) are inserted into the center position inside the pile body (2) to form a composite structure.
2. The steel pipe core cement-soil composite pile according to claim 1, characterized in that, The top end of the steel pipe (1) is provided with a sealing plate (4), and a central detection through hole (401) is provided on the sealing plate (4); the sealing plate (4) is attached to the top end of the pile body (2), and the central detection through hole (401) is arranged coaxially with the steel pipe (1).
3. The steel pipe-jacked cement-soil composite pile according to claim 2, characterized in that, The sealing plate (4) has a diameter of 150 mm and a thickness of 4 mm; the central detection through hole (401) has a diameter of 40 mm.
4. The steel pipe cement-soil composite pile according to claim 1 or 2, characterized in that, The bottom end of the steel pipe (1) is provided with a cutting edge (5).
5. The steel pipe-jacked concrete composite pile according to claim 1, characterized in that, The blade (301) has a rectangular structure, and the long side of the blade (301) is parallel to the axis of the steel pipe (1).
6. The steel pipe-jacked concrete composite pile according to claim 5, characterized in that, Each of the reinforced blade groups (3) is provided with four blades (301), which are evenly arranged to form a cross-shaped structure.
7. The steel pipe cement-soil composite pile according to claim 5, wherein The blade (301) is 200 mm long, 70 mm wide, and 4 mm thick.
8. The steel pipe cement-soil composite pile according to claim 1, characterized in that, The distance between two adjacent reinforced blade groups (3) is 1.5m.
9. The steel pipe cement-soil composite pile according to claim 1, characterized in that, The diameter of the steel pipe (1) is 100mm, and the diameter of the pile body (2) is 400mm.