exterior boundary problem

When the inner boundary is close to the opening,the displacement of opening edge and at the outer boundary are small and the thickness is also little.

通过数值分析可以发现,压力拱拱体内的岩体变形增长缓慢,压力拱内边界与隧道之间的岩体变形急剧增加;压力拱内边界越靠近隧道,隧道的变形量越小;压力拱厚度小,外边界处的变形也相对较小。

Three-dimensional movement state of bottom outer edge plate of oil tank opposite to the concrete base of oil tank and the corrosion of bottom plate induced from environment change are presented in the article.

介绍了储油罐底外边缘板相对于混凝土基座立体位移的运动形态和环境变化对罐底外边缘板造成的腐蚀机理。