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| 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 | Experimental research and numerical simulation of the multi-field performance of cemented paste backfill:Review and future perspectives显示文摘Cemented paste backfill(CPB)technology is a green mining method used to control underground goaves and tailings ponds.The curing process of CPB in the stope is the product of a thermo-hydro-mechanical-chemical multi-field performance interaction.At present,research on the multi-field performance of CPB mainly includes indoor similar simulation experiments,in-situ multi-field performance monitoring experiments,multi-field performance coupling model construction of CPB,and numerical simulation of the multi-field performance of CPB.Because it is hard to study the in-situ multi-field performance of CPB in the real stope,most current research on in-situ multi-field performance adopts the numerical simulation method.By simulating the conditions of CPB in the real stope(e.g.,maintenance environment,stope geometry,drainage conditions,and barricade and backfilling rates),the multi-field performance of CPB is further studied.This paper summarizes the mathematical models employed in the numerical simulation and lists the engineering application cases of numerical simulation in the in-situ multi-field performance of CPB.Finally,it proposes that the multi-field performance of CPB needs to strengthen the theoretical study of multi-field performance,form the strength design criterion based on the multi-field performance of CPB,perform a full-range numerical simulation of the multi-field performance of CPB,develop a pre-warning technology for the CPB safety of CPB,develop automatic and wireless sensors for the multi-field performance monitoring of CPB,and realize the application and popularization of CPB monitoring technology. | Yong Wang Zhenqi Wang Aixiang Wu Liang Wang Qing Na Chen Cao Gangfeng Yang | 2023 | International Journal of Minerals,Metallurgy and Materials2023，30，2： | 2 |
| 3 | 基于基质吸力演化的膏体凝结性能划分方法显示文摘膏体充填料凝结性能严重影响采矿安全和效率,目前凝结性能判定标准主要借鉴砌筑砂浆,砌筑砂浆强度范围为5 MPa~30 MPa,而充填体强度一般只有0.2 MPa~5 MPa,因此,砌筑砂浆凝结性能判定标准对于充填采矿来讲适应性差。以初始温度为变因,开展了不同龄期膏体强度、基质吸力演化试验。基于试验结果,将不同初始温度膏体基质吸力与强度进行关联,并探讨了基质吸力-强度统一凝结性能划分方法:当膏体的单轴抗压强度(UCS)为0~0.075 MPa时为潜伏期;UCS为0.075 MPa~0.153 MPa时为凝结期,UCS为0.075 MPa即达到初凝;UCS大于0.153 MPa为硬化期,即为终凝。新的凝结性能分类方法与膏体充填实际应用强度更加吻合。 | 毕成 王勇 杨钢锋 | 2021 | 矿业研究与开发2021，41，6： | 1 |
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