摘要
根据矿山法与盾构结合施工的工法要求,矿山法空推段的初期支护相对于一般巷道初期支护,对于支护时间有着格外的要求。文章采用ANSYS的优化设计功能,在对支护参数进行优化的过程中,着重考虑支护结构的长期效应。考虑在较长时间段内空推段围岩的变形以及变形对支护结构和支护效果的影响,从而与实际工程的支护要求相符合。数值模拟结果表明:与一般的优化效果相比,考虑长期效应的支护结构对于围岩流动所产生的侧墙内移和拱顶开裂具有更好的防治效,更能满足工程的安全性能要求。对比实际工程效果表明了改参数优化方式的可行性和有效性,有望运用于实际工程。
According to the requests of the technology combined by mining method and shield method, the preliminary bracing in mining section has a special requirement for supporting time. In this paper, I deliberate the long-term effect of the preliminary bracing during the optimization procedure based on ANSYS optimization design. I take the long-term effect of surrounding rock into account in mining section, which is much conform to real situation in engineering construction. Simulation numerical results show that： compared with the normal parameter optimization, the result consider time long-term effect shows out powerful ability against surrounding rock deformation such as lateral wall displacement and vault damage. This kind of optimization is more suitable for actual engineering situation. In contrast of the actual situation, the improved optimized method is the feasibility and effectiveness and is expected to be used in practical engineering.
出处
《科技创业月刊》
2016年第21期117-119,共3页
Journal of Entrepreneurship in Science & Technology
基金
武汉工程大学第七届研究生创新基金项目(项目编号:CX2015036)
关键词
ansys优化设计
支护参数优化
组合施工
长期效应
ANSYS optimization design
optimization of support parameters
combined construction
long-term effect
