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采用有限元法求解比奥(B iot)固结方程计算路基沉降量是一种常用方法,通过三轴压缩试验来求取相应的弹性参数则耗时耗资。根据路基土的密度、速度与弹性参数(如弹性模量Es和泊松比μ)之间的关系,将速度和密度引入到有限元劲度矩阵方程来求解比奥固结方程,讨论了综合地震勘探在沉降检测与预测中的应用。理论模拟分析和实际应用结果表明,将地震技术用于地基沉降量计算中是有效的。
It is a common method to calculate the subgrade settlement by using the finite element method to solve the B iot consolidation equation. It takes time and cost to obtain the corresponding elastic parameters through the triaxial compression test. According to the relationship between density, velocity and elastic parameters of subgrade soil (such as elastic modulus Es and Poisson’s ratio μ), the velocity and density are introduced into the finite element stiffness matrix equation to solve the Biot consolidation equation. The effects of synthetic earthquakes Application of Exploration in Settlement Detection and Prediction. Theoretical simulation analysis and practical application show that it is effective to use seismic technology in the calculation of ground settlement.