真空强排法在加固铁路软弱土地基处理中的应用  

Application of Vacuum Hyper-drainage in Strengthening Soft Soil Foundation of Railway

作　　者：韩建文 HAN Jianwen(China Railway Design Group Co.,Ltd.,Tianjin 300308,China)

机构地区：[1]中国铁路设计集团有限公司,天津300308

出　　处：《路基工程》2020年第5期154-158,共5页Subgrade Engineering

摘　　要：结合唐山地区铁路站场工程,采用真空强排工法进行松软土地基处理,取消预压土,施工噪音低,无污染,社会经济效益明显。沉降主要发生在预压和堆载1~3个月内,可明显节省工期,其沉降值略大于常规的堆载预压法,后期沉降相对很小,沉降主要发生在路堤本体加固范围之内,对周边影响很小。Depending on the engineering of railway yard in Tangshan area,vacuum hyper-drainage method was taken to treat the soft soil foundation.It called off preloading soil and was of low noise,no pollution and obvious social and economic benefits.The settlement occurred between 1 to 3 months after preloading and surcharge loading,and the construction period was decreased significantly.The subsidence was slightly greater than that of conventional surcharge preloading and relatively small in later period.The settlement occurred mainly within the reinforced embankment body,thus has minor influence on the surroundings.

关 键 词：唐山铁路 松软土地基 真空预压 沉降 孔隙水压力 

分 类 号：TU471.8[建筑科学—结构工程]