摘要
科学、准确、及时地分析和预报建筑物的沉降状况,对其施工和运营极为重要,沉降监测的研究成果也是检验设计和施工的重要手段。由于自然环境的多变性、施工现场的复杂性等各种主、客观因素影响,监测数据有时会出现间断,为了分析沉降规律,需要对缺失数据进行插补。考虑到沉降监测非等时间间隔的特点,建立非等间距GM(1,1)模型及优化背景值的GM(1,1)模型,应用于沉降监测缺失资料的插补工作中,取得了较满意的监测间断数据插补值。
Scientific, accurate, and timely analysis and prediction of the settlement of the building is extremely important for the con- struction and the operation. Settlement monitoring results are the important means of the design and construction test. Due to the varia- bility of the natural environment, complexity of construction site, and other subjective and objective factors, monitoring data can be sometimes interrupted. In order to analyze the settlement law, interpolation is needed for the missing data. Taking into account the non equal time interval characteristics of the settlement monitoring, non - equidistance GM （ 1,1 ） model and optimization of background values of GM （ 1,1 ） model are established, which is applied to the interpolation of the missing data, and more satisfactory continuous data interpolation values of monitoring is obtained.
出处
《测绘与空间地理信息》
2013年第6期167-170,共4页
Geomatics & Spatial Information Technology
关键词
沉降预测
非等间距GM(1
1)模型
背景值优化
插补
settlement prediction
non - equidistant GM （ 1, 1 ） model
background value optimization
insert and replenish
