共被期刊论文引用了2次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 金属矿充填固化过程监测研究现状及展望显示文摘充填采矿技术是金属矿绿色高质量发展的重要支撑技术,课题组在充填领域提出了“充填固化过程监测”分支研究方向,旨在突破金属矿充填采场原位强度难以监测表征的瓶颈问题。结合课题组相关研究进展,总结凝练了金属矿充填固化理论与应用研究的技术思路,并从充填固化过程多场性能监测技术、多场性能演化规律、多场性能发生机理、多场性能关联机制、充填体强度—多场性能表征模型、充填固化过程数值模拟以及工程应用等方面系统阐述了金属矿充填固化过程多场性能监测理论和应用的研究现状。在上述分析的基础上,从理论、技术、装置3个层面展望了未来发展方向,认为后续需要攻克的重点分别为:真实采场全域数值仿真,基于固化过程监测的充填体安全预警技术,无线化、精准化与低价化的固化过程监测传感器研制及工程推广应用。 | 王勇 李健 王珍岐 那庆 毕成 吴爱祥 | 2023 | 金属矿山2023，，5： | 4 |
| 2 | Estimating shear strength of high-level pillars supported with cemented backfilling using the HoekeBrown strength criterion显示文摘Deep metal mines are often mined using the high-level pillars with subsequent cementation backfilling(HLSCB)mining method.At the design stage,it is therefore important to have a reasonable method for determining the shear strength of the high-level pillars(i.e.cohesion and internal friction angle)when they are supported by cemented backfilling.In this study,a formula was derived for the upper limit of the confining pressure σ3max on a high-level pillar supported by cemented backfilling in a deep metal mine.A new method of estimating the shear strength of such pillars was then proposed based on the Hoek eBrown failure criterion.Our analysis indicates that the horizontal stress σhh acting on the cemented backfill pillar can be simplified by expressing it as a constant value.A reasonable and effective value for σ3max can then be determined.The value of s3max predicted using the proposed method is generally less than 3 MPa.Within this range,the shear strength of the high-level pillar is accurately calculated using the equivalent MohreCoulomb theory.The proposed method can effectively avoid the calculation of inaccurate shear strength values for the high-level pillars when the original HoekeBrown criterion is used in the presence of large confining pressures,i.e.the situation in which the cohesion value is too large and the friction angle is too small can effectively be avoided.The proposed method is applied to a deep metal mine in China that is being excavated using the HLSCB method.The shear strength parameters of the high-level pillars obtained using the proposed method were input in the numerical simulations.The numerical results show that the recommended level heights and sizes of the high-level pillars and rooms in the mine are rational. | Kaizong Xia Congxin Chen Xiumin Liu Yue Wang Xuanting Liu Jiahao Yuan | 2024 | Journal of Rock Mechanics and Geotechnical Engineering2024，16，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员