arch section meaning in English

弧段

This paper focused on the temperature distribution of concrete filled steel tubular arch section during its construction and its service phase under solar radiation
本文着重探讨钢管混凝土拱肋在施工过程中和成桥后在日照作用下的截面温度场问题。
The construction of the multiple - arch tunnel is deeply related to the form of center partition , the tunnel ' s section and excavation method etc . the change regularities of stress field caused by excavation are studied by 4 multiple - arch unlined tunnel model tests . the difference in lining for various multiple - arch sections is analyzed and the mechanics characteristics of center partition is discussed . then , a reasonable construction method for multiple - arch tunnel and a better section are put forward
通过4个连拱模型试验，研究了连拱毛洞开挖引起的应力场变化规律，对不同的连拱断面的衬砌受力差异进行了深入的分析，同时对中隔墙的受力特点也作了探讨，提出了合理的连拱隧道构筑方法及优化断面图。