摘要
通过对U形混凝土衬砌渠道冻胀破坏机理的分析,提出了U形混凝土衬砌渠道冻胀破坏的力学模型,并解出了渠坡直线段和圆弧段控制内力及最大拉应力,结合混凝土板抗裂条件给出了冻胀力、胀裂部位、冻胀抗裂衬砌板厚度及抗冻胀破坏验算的一系列计算方法。
The frost heave mechanical model of canal with U shape concrete lining is put forward by way of the analysis of frost heave damage mechanism for U shape concrete lining canal,calculates the controlling inner force and the maximum tension stress in the straight block of canal slope and circular arc block,gives the series calculation methods of frost heave force crack location,thickness of lining against cracking and checking computation against frost heave damage.
出处
《东北水利水电》
2007年第6期4-7,共4页
Water Resources & Hydropower of Northeast China
关键词
衬砌渠道
冻胀破坏
力学模型
canal with lining
frost heave damage
mechanical model
