摘要
岩体参数是影响隧道安全性分析的关键因素,参数的确定往往依借助于现场监测数据和数值模拟手段。文章依托隧道多点位移计现场监测数据和有限元数值计算,以误差平方和为目标函数,提出了参数正交反演分析方法,与其它方法相比,该方法具有较高的精度和效率。计算结果表明,以围岩位移为基准的参数正交反演分析方法是可行的,研究结果可供同类地下工程施工和设计参考。
The parameters of rock strata are key factors affecting the analysis of tunnel safety, and the determination of parameters is usually based on in situ data monitoring and numerical simulation. Using site-monitoring data obtained by the multi-point displacement meters, as well as numerical calculations achieved by finite element model using the error sum of squares as its objective function, an orthogonal back analysis was performed. The calculation results show that this orthogonal back analysis is feasible and can be used as a reference for similar projects.
出处
《现代隧道技术》
EI
北大核心
2013年第2期66-71,78,共7页
Modern Tunnelling Technology
关键词
软土隧道
岩体参数
正交设计
数值模拟
多点位移计
Soft soil tunnel
Rockmass parameter
Orthogonal design
Back analysis
Multi-point displacement meter
