水泥灰土挤密桩加固黄土路基在陕北高速公路中的应用  

An Application of Cement Lime-soil Compaction Pile Consolidating Loess Subgrade in Expressways in Shanbei

作　　者：张春瑜[1] 

机构地区：[1]中铁十八局集团公司,天津300222

出　　处：《中国市政工程》2013年第5期74-77,108,共4页China Municipal Engineering

摘　　要：水泥灰土挤密桩通过机具成孔,利用杆状尖锤的高压强动能,对孔内填料进行冲击夯扩,使填料向孔底和孔周强力压实、挤密,从而改善土体结构。水泥灰土挤密桩可以处理厚度较大的湿陷性黄土地、路基,施工操作简单,经济适用,方法有效。Cement lime-soil compaction pile refers to a kind of construction method:to form a hole by a machine first,and then to impact padding in the hole by using the high-pressure momentum of the rod shaped peen hammer. Through the method above,the padding in the hole could be compacted,and the structure of the soil could be improved accordingly.With simple operation and low-cost,this method is an effective way to handling the works with thick collapsed loess,especially the subgrade.

关 键 词：水泥灰土挤密桩 加固 黄土路基 

分 类 号：TU472.32[建筑科学—结构工程]