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APPLIED RELIABILITY ANALYSIS OF ROCKBOLTING SYSTEMS FOR THE SUPPORT DESIGN OF UNDERGROUND WORKS

机译:锚杆支护系统在地下工程支护设计中的应用可靠性分析

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摘要

The analysis and design of the real action of a rockbolting system, is mainly based on the hierarchical consideration of several parameters, the majority of which is influenced either by subjective personal evaluations and assumptions, or by experimental data and in situ testing results which are connected with the problem of support design on a deterministic way. There is no doubt that the aforementioned issues contain the minimum required data set that ensures objectivity and adequacy of the design. But, are they themselves enough to specify the correctness of the support design results, given the changeable and often unpredictable conditions prevailing underground? Furthermore, there are numerous cases in the underground mining and construction engineering field, which suffered by partial or total failures, in spite of the detailed rock mechanics calculations and relative numerical modelling investigations during the design stage.
机译:锚固系统真实动作的分析和设计主要基于对几个参数的分层考虑,其中大多数参数受主观个人评估和假设,或者受相关的实验数据和现场测试结果的影响确定性地设计支撑设计问题。毫无疑问,上述问题包含确保设计的客观性和充分性的最低要求的数据集。但是,考虑到地下存在多变且通常不可预测的条件,它们本身是否足以指定支护设计结果的正确性?此外,尽管在设计阶段进行了详细的岩石力学计算和相关的数值建模研究,但在地下采矿和建筑工程领域,仍有许多案例遭受部分或全部破坏。

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