【摘要】 依据基于可靠度的软岩巷道支护系统优化设计基本原理,建立了“投资-效益”准则的结构设计优化模型。利用BP神经网络对巷道翻修费用进行分析和预测,通过约束放松法确定优化设计方案和基于功能的支护系统目标可靠度。利用该优化设计方法对S2S10运输顺槽支护方案进行可靠性分析并给出了寿命周期内联合支护系统优化设计方案。更多还原

【Abstract】 Introduces the basic principle of the optimal design of roadway supporting system in soft rocks based on reliability and gives the establish ment of a modal of the structural optimization design. This paper analyzes and predicts remodeling cost by BP neural network, and gives the discussion on optimal design by releasing the restriction method and the target reliability performance-based of supporting system. The optimum designing method is used to analyse the reliability in the supporting discussion of S2S10 convergence in roadway, and gives the discussion on optimal design of the combined supporting system in life cycle.更多还原