摘要
由于地质条件的隐藏性和勘察技术的局限性使许多因素不可预知或知之甚少,在区域尺度上进行地面沉降的计算和预测往往存在一定的困难.将地面沉降数值模拟公式作为迭代方程,提出了从随机动力系统的角度对地面沉降时空特征进行定性分析的方法,并提出了基于地统计学的不均匀地面沉降指数公式.利用不均匀地面沉降指数从动力系统的角度定性分析了北京地区地面沉降过程中表现出的时空特征.
Because the geological conditions is hidden and geological survey technology is limited, many factors are unknown or poorly understood. It is hard to predict and calculate land subsidence on regional scale. The numerical simulation formula of land subsidence is looked as a iterative equation. A new method of the qualitative analysis of land subsidence spatio-temporal features based on random dynamical system is proposed. A new formula of uneven land subsidence index is proposed. The spatio-temporal features of land subsidence on Beijing is analyzed qualitatively using uneven land subsidence index based on random dynamical system.
出处
《高师理科学刊》
2017年第8期49-55,59,共8页
Journal of Science of Teachers＇College and University
关键词
地面沉降
地下水开采
随机动力系统
不均匀地面沉降指数
时空特征
land subsidence
underground water exploitation
random dynamical system
uneven land subsidenceindex
spatio-temporal feature
