摘要
大型构筑物主体结构的形变测量具有重要理论意义和实用价值。某构筑物主体经过基础沉降测量表明该构筑物存在明显不均匀沉降现象,造成结构主体一定程度倾斜变形。为此,我们采用高精度全站仪极坐标观测技术对该构筑物主体进行了长达6年的形变量跟踪观测与分析。本文给出了构筑物主体形变测量的原理与方法,并推导了形变矢量和整体倾斜角相应的计算公式,通过多项式拟合方法对形变量进行数学建模、分析总结形变规律并预测形变发展趋势。最后,利用对某构筑物2000年至2005年的形变监测数据做了形变规律分析,得出了有益的结论。
The deformation measurement for huge structure has very important theoretical meaning and practical value. Here, taking a building as a case, when base-settlement measuring showed the construction tower slightly leaned 6 years ago, deformation monitoring and analysis were conducted, in which high precision total station instrument measuring technology was adopted. This paper gives the principle and method for construction deformation measuring, which daduces the deformation vector and lean- angle calculating formula. At the last, according to the data between the year of 2000 and 2005, the deformation pattern and tendency were summarized by polynomial fitting method. Some conclusions were reached.
出处
《工程勘察》
CSCD
北大核心
2007年第2期61-63,共3页
Geotechnical Investigation & Surveying
关键词
主体形变
全站仪极坐标观测技术
多项式拟合
construction deformation
total station polar measuring technology
polynomial fitting
