拱形巷道在复杂应力条件下的变形以及破坏形式呈多样化，与围岩性质、地应力和支护结构相关。
The distortion and destroy form of coved laneway in complicated stress condition are diversity, and it is relative with rock character, crustal stress and shoring structure.
算例分析表明，深基坑开挖对邻近管线破坏极大，因而提出了深基坑支护结构设计时应采取的具体措施。
Examples show that the damage effect of deep excavations is great, and a method is suggested to resolve the problem in design of retaining structures.
通过有限元模拟，能够更加合理地模拟结构的支护作用，更真实地揭示出结构的破坏机制。
By the numerical simulation, the failure process of the structure was showed and thus the retaining effect was obtained.
目前软岩支护问题突出，在一些软岩巷道中，用于支护的u型钢支架破坏比较严重，本文对支架进行了结构力学分析，并从支架自身结构方面对破坏原因进行了分析。
Through the structural mechanics analysis of U-shaped steel support widely used in soft-rock supporting, the author has found out the failure causes from the support structure itself.
为研究地下工程格栅支撑这一新型支护结构的力学性能，进行了一系列格栅支撑的小比例结构静力加载试验，分析了格栅支撑的承载力性质和破坏特性。
In order to investigate the mechanical performance of lattice girders, a series of small scale static load tests are carried out and the loading properties and failure behaviour are analysed.
为研究地下工程格栅支撑这一新型支护结构的力学性能，进行了一系列格栅支撑的小比例结构静力加载试验，分析了格栅支撑的承载力性质和破坏特性。
In order to investigate the mechanical performance of lattice girders, a series of small scale static load tests are carried out and the loading properties and failure behaviour are analysed.
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