【摘要】 采用弹性力学的方法,根据冻融圈整体冻胀力学模型,推导了寒区隧道冻胀力的解析式。以回头沟隧道工程实例,计算了隧道在不同冻胀率、不同冻胀深度及不同衬砌厚度影响下的冻胀力,采用控制变量法得出:冻胀力随着冻胀率、冻胀深度、衬砌厚度的增大而有不同程度的增大,其中冻胀率对冻胀力的影响最大,冻胀深度其次,衬砌厚度最小。更多还原

【Abstract】 Herein elastic mechanics method was used and,with the integral mechanical model of frost heaving in frost thaw cycles,the analytical formula for frost heaving force of tunnels in cold regions was derived.Taking Huitougou Tunnel engineering as the example,the frost heaving force of tunnel under the action of different frost heaving ratio,frost heaving depth and lining thickness,was calculated.By control variable method,it was concluded that the frost heaving force increases at different rates with the increase of frost heaving ratio,frost heaving depth and lining thickness,wherein the frost heaving ratio has the largest impact,the frost heaving depth follows,and the last is the lining thickness.更多还原