摘要
作为地下洞室群重要的支撑结构,岩柱在采矿工程、水电工程、公路铁路隧道工程等诸多领域都有着广泛地应用。在系统总结岩柱荷载和岩柱强度前人研究方法和研究成果的基础上,对工程实践常用的条形和矩形岩柱上的应力分布规律及其影响因素、岩柱宽度对岩柱应力重新分布规和岩柱荷载的影响进行了系统分析,分析了岩柱渐进式破坏的力学机制,为岩柱设计和岩柱失稳破坏分析提供了参考依据。
As one of the key underground chambers＇supporting structure, rock pillar is widely used in mining engineering, hydropower project, road and rail tunnels and many other areas. Base on reported research methods and results of rock pillar stress and strength, through analyse of distribution rule and influencing factors of the bar - type and rectangle rock pillar used in engineering project, and the effect of different rock pillar width on pillar stress re - distribution rule and pillar load, the mechanism of rock stress - induced progressive failure have also been systematically studied. Rock pillar design and its stability analysis is provided.
出处
《铜业工程》
CAS
2011年第3期1-6,共6页
Copper Engineering
基金
国家自然科学基金资助项目(项目批准号:50879049
50574064)
国家重点基础研究发展计划(973计划)(项目编号:2010CB226802
关键词
支撑结构
岩柱强度
岩柱荷载
渐进式破坏
稳定性分析
supporting slructure
rock pillar strength
rock pillar load
progressive failure
stability analysis
