1) arch-precursor method
先拱法
1.
In this paper, the author analyzed the features of collapses happened at different parts of grotto based on classification of collapses, summarized the common process and technical gist of arch-precursor method in settling collapse at grotto s intersection, introduced successful experience by applying this method to settle collapse at certain part of.
文章在对塌方进行分类的基础上,分析了洞室不同部位塌方的特点,总结了“先拱法”治理洞室交叉部位塌方的一般步骤和技术要点,并通过实例介绍了洞室交叉部位塌方处理的成功经验。
3) construction by arch-first-beam process
先拱后梁法施工
4) ordinary lining process (from bottom of top)
先墙后拱衬砌法
5) German method of tunneling
侧壁导坑先墙后拱法
6) the tri-leading-hole-and-first-wall-and-then-arch method
三导洞先墙后拱法
补充资料：先不先
1.方言。犹言首先。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条