A screw sand barrel drill and pile forming equipment
The spiral sand drill, through the coordinated work of the spiral drill and the reamer, and utilizing the lateral support of the installation body, solves the problem of instability of the pile hole in the sand layer, achieving rapid and safe hole formation and sand removal, and is suitable for pile foundation construction in narrow spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 16TH BUREAU GRP CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-21
AI Technical Summary
In pile foundation construction, especially in narrow spaces and height-restricted sites, traditional small pile-forming equipment is prone to collapse when drilling in sand layers due to unstable pile hole walls, and the sand is difficult to effectively extract.
A spiral sand drill is used, and the auger and the reamer work together to prevent the hole wall from collapsing by utilizing the lateral support of the installation body. The forward and reverse rotation of the auger enables the rapid discharge of sand.
It effectively prevents the collapse of the hole wall in the sand layer, improves the safety and efficiency of hole formation, realizes the rapid discharge of sand and soil, and has no mud pollution, no vibration, and no noise, thus having good economic and social value.
Smart Images
Figure CN224532643U_ABST