摘要
本工程的桩基础遇到起伏完整性的硬质基岩，进尺效率低、多次发生冲锤破坏。经对成孔工艺及冲锤设计等的探索改进，比较系统地解决了困难，为类似地质施工提供了实践依据和施工经验。
When pile foundation encounters the ups and do-wns integrity hard rock, it badly affects the efficiency of making hole and has an impact on RAM frequently. This paper systematical y solves the difficulties using improved techniq-ues of dril bore and new design of RAM. It may provide pr-actical base and construction experience for the similar ge-ological construction.
出处
《城市建筑》
2014年第11期347-347,358,共2页
Urbanism and Architecture
关键词
大直径
桩基
施工探索
large diameter
pile foundation
explore the const-ruction
