It studies the bracing method and its mechanism of present weak rock underground project. The bracing countermeasure are made from deformation mechanism and engineering practice.
研究现行的软岩地下工程支护方法及其作用机理，根据软岩地下工程变形破坏力学机制初步确定支护对策。
For this purpose the mechanism of forming a rock tunnel roof arch and reinforcement will be illustrated with the underground powerhouse in the Three Gorges Project.
为此，以三峡工程地下厂房拱顶设计为例，研究洞顶岩石拱结构形成及加固机理。
The key rock mechanical problems of the underground powerhouse in Shuibuya Project are the complicated rock structures and the control effect of soft rock on the surrounding rock of the grotto.
水布垭地下厂房岩石力学问题主要表现为复杂的岩体结构及软岩对洞室围岩的控制作用。
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