Compared to artificial digging-hole pile, the pumping reverse-circulation under-reamed bored pile has higher adaptability to geological condition, and its construction is safety and reliability.
泵吸反循环钻孔扩底灌注桩与人工挖孔灌注桩相比，地质条件的适应性强，施工安全可靠。
2
The results show that the use of under-reamed bored pile can assure the safety of foundation engineering.
结果表明，扩底钻孔灌注桩的使用保证了地基工程的安全性。
3
The test research shows that the concrete pour pile with changeable muld-under-reamed enlarged bottom can meet the demands of high bearing capacity and low settlement for high-rise building.