某轨道交通和下穿地道沉降差之原因分析  

Analysis on Settlement Difference between Rail System and Underpass

作　　者：代裕清 

机构地区：[1]中铁上海设计院集团有限公司,上海200070

出　　处：《路基工程》2014年第1期187-192,共6页Subgrade Engineering

摘　　要：结合某轨道交通和下穿地道不均匀沉降实例,采用实测沉降监测数据分析了病害发生的原因及演变过程。分析结果表明:造成沉降差的主要原因是,由于其北侧的盲沟破坏导致了管涌,土体颗粒流失;其次是冻结融沉。Combined with the instance of uneven settlement between a rail system and underpass, the measured data of settlement monitoring was used to analyze the causes of diseases and the evolution process. The results show that the first reason of settlement difference is piping and loss of soil grains caused by the damage to blind ditch in the north side; and the second reason is freezing and thawing.

关 键 词：轨道交通 沉降原因 沉降监测 管涌 冻结融沉 

分 类 号：U216.417[交通运输工程—道路与铁道工程]