摘要
采用粘土、碎石,利用冲击钻下冲过程中产生的横向挤压力,重新造壁,提高孔内水头压力稳定护壁,是处理断桩的有效办法。
Adopting the clay and macadam, utilizing the lateral extruding force emerging in impacting process with impacting driller, afresh making the wall as well as heightening the water head＇s pressure in hole to stabilize the wall are effective ways to treat broken pile.
出处
《北方交通》
2008年第6期150-151,共2页
Northern Communications
关键词
流砂地质层
断桩
处理
Drift sand geological layer
Broken pile
Treatment
