three-dimensional collapse arch 三维塌落拱
protection of collapse in arch 塌拱防治
collapse height of soil-arch 拱顶垮落高度
The theory and construction method to deal with and protect the tunnel collapse in arch are studied.
进一步研究了处理和防治塌拱的施工措施和原理。
During construction of the middle drift of a multi-arch tunnel, collapse accident occurred.
某连拱隧道在中导洞施工时出现坍方。
The collapse model of the steel tubular arch is of the second stability problem, in which the material nonlinear influence is obvious.
结构破坏属于以材料非线性影响为主的二类稳定问题。
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