摘要
随着城市地下交通工程建设的迅速发展,地下立交工程将变得较为常见,为保证施工顺利进行,需对施工引起的变形进行监测。本文结合南京市湖底公路隧道与地铁一号线地下立交的沉降监测结果,得出地下立交沉降测量一般按二等水准测量的精度施测即可、沉降监测点的布设在隧道中心线两侧20m内可满足要工程监测要求、根据盾构掘进距立交中心的位置去调整观测频率,在距中心线10m范围内时每天至少观测2次,对于观测数据可采用多项式拟合。以上几点可供进行地下立交沉降监测时参考。
Along with the fast development of urban traffic engineering, more and more underground overpass projects have been under construction, This paper, based on the road tunnel project under Xuanwu lake in Nanjing city and the result of settlement monitoring of underground overpass, discusses the grade and precision of settlement monitoring, the plan of monitoring point distribution, the frequency of observation and the method of data fitting. These experiences could be helpful to the similar engineering projects.
出处
《工程勘察》
CSCD
北大核心
2006年第12期63-65,共3页
Geotechnical Investigation & Surveying
关键词
地下立交
沉降监测
数据拟合
underground overpass
settlement monitoring
data fitting
作者简介
张清波（1979-），男（汉族），河南淮阳人，硕士研究生．
