一种提高水泥土搅拌桩均匀性的施工装置及施工方法
By setting arc-shaped sealing plates and guide grooves on the mixing shaft and drill bit, combined with high-pressure pumps and air chambers, the problem of low slurry utilization rate when the drill rod moves upward is solved, and the uniformity and construction efficiency of cement-soil mixing piles are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI YUANFENG UNDERGROUND ENG TECH
- Filing Date
- 2024-02-21
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the grout injection nozzle at the bottom of the drill rod cannot be closed when the drill rod moves upward, resulting in low grout utilization and affecting the uniformity of the cement-soil mixing pile.
A construction device including a stirring shaft and a drill bit was designed. By setting an arc-shaped sealing plate and a guide groove on the stirring shaft, combined with a high-pressure pump and a pneumatic chamber, the automatic control of slurry and gas is realized, ensuring the effective ejection of slurry and gas under different motion states.
It improves the uniformity of cement-soil mixing piles, enhances the mixing effect of grout and soil, reduces mixing resistance, and improves construction efficiency and early strength in hard soil layers.
Smart Images
Figure CN117966718B_ABST