邱庄水库大岭隧洞衬砌内力分析

Internal force of Dalin Tunnel of Qiuzhuang Reservoir

根据大岭隧洞沿线围岩类别、围岩厚度及隧洞衬砌断面尺寸,选取3个断面为衬砌内力计算代表断面。计算过程中,根据围岩情况及不同荷载组合,合理确定围岩压力、内(外)水压力及围岩弹性抗力,取得了较为可靠的内力计算成果,为隧洞结构安全评价提供了依据。

On the basis of surrounding rock classification and thickness and lining size of Dalin Tunnel of Qiuzhuang Reservoir,three typical sections is selected to analysis the internal force.During the Internal force analysis,the surrounding rock press and water press and elastic resistance is accurately considered,on the basis of surrounding rock condition and different combined loads.The result of the internal force analysis is accurate,and it provide the foundation for the assess of tunnel structure.