摘要
研究了三维计算模型中掌子面的推进位置与围岩位移释放系数间的关系,再结合二维分析中围岩应力释放系数与位移释放系数间的对应关系,得到了各典型类别围岩的应力释放系数与掌子面推进位置间的对应关系,得出了具有一般性的规律,并在现场监测中得到了验证,这将为工程设计的精确性分析和施工的及时性提供合理的依据,同时也为今后有限元的分析提供了有价值的参考。
Through the relationship between the displacement release and excavation place from three-dimensional numerical emulation test and the relationship between the displacement release and stress release from two-dimensional model,we get the general rules and the relationship between the excavation place and stress release,which have been validated in the local meterage.And then,all these above-mentioned can provide the logical basis for the accuracy design and construction,and also for the numerical analysis.
出处
《水利与建筑工程学报》
2007年第4期59-62,共4页
Journal of Water Resources and Architectural Engineering
关键词
应力释放
弹塑性分析
位移释放
stress release
elastoplastic analysis
displacement release
