摘要
在卸载情况下考虑周围土体、冻结壁和井壁共同作用的同时考虑了冻结壁中冻土冻胀特性和流变特性建立井壁砌筑前后冻结壁的粘弹性稳定性分析模型,求得井壁砌筑前井帮的变形规律和井壁砌筑后作用于井筒外壁的冻结压力的增长规律。结果表明考虑了冻结壁冻胀特性的冻结壁的变形值及冻结压力值更接近实测值。
Considering the fact of frost heave,the interaction between the frozen soil wall and the shaft lining and that between the frozen soil wall and the surrounding earth mass in unload state,a viscous-elastic mechanical model of stability analysis of frozen soil wall is obtained based on the viscous-elastic theory.Then the displace of the frozen soil wall,the freezing pressure exerted on the outer shaft lining are acquired by calculating in an engineering practice.It＇s illustrated that the values of both the displace and the freezing pressure considering frost heave are more consistent with those measured in-situ.
出处
《安徽建筑工业学院学报（自然科学版）》
2010年第2期14-16,共3页
Journal of Anhui Institute of Architecture(Natural Science)
关键词
深井
粘弹性
冻土流变
冻胀
deep shaft
viscous-elasticity
rheological character
frozen heave
