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复杂地基,尤其是深厚回填土地基,其工程特性和均匀性极差,在建筑物荷载作用下,变形极其复杂。要较准确地判断地基的变形规律和发展趋势,涉及到:上部荷载、基础和地基三者相互效应;应力-应变场空间形态特征及其演化规律;地基赋存地质环境变化对地基变形的影响等。应用三维数值模拟技术,这些问题可迎刃而解。该文以阳泉某小区7#、8#楼地基变形为例,进行了成功的实践,效果较好。
Complicated foundations, especially deep backfill soils, have very poor engineering characteristics and evenness, and the deformation is extremely complicated under the loads of buildings. To determine the deformation law and development trend of foundation more accurately, it involves: the interaction of upper load, foundation and foundation; the spatial and morphological characteristics of stress-strain field and its evolution; the influence of geologic environment change on foundation deformation Wait. Application of three-dimensional numerical simulation technology, these problems can be solved. This paper takes Yangquan a 7 #, 8 # floor deformation as an example, conducted a successful practice, the effect is better.