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Using cemented paste backfill to tackle the phosphogypsum stockpile in China:A down-to-earth technology with new vitalities in pollutant retention and CO_(2) abatement

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1480-1499页

作者： Yikai Liu yunmin wang Qiusong Chen School of Resources and Safety Engineering Central South UniversityChangsha 410083China Department of Geosciences and CIRCe Centre University of PaduaPadua 35129Italy Sinosteel Maanshan General Institute of Mining Research Co. Ltd.Ma'anshan 24300China

Phosphogypsum(PG),a hard-to-dissipate by-product of the phosphorus fertilizer production industry,places strain on the biogeochemical cycles and ecosystem functions of storage *** pervasive problem is already widespread worldwide and requires careful *** this study,we review the presence of potentially toxic elements(PTEs)in PG and describe their associations with soil properties,anthropogenic activities,and surrounding ***,we review different ex-/in-situ solutions for promoting the sustainable management of PG,with an emphasis on in-situ cemented paste backfill,which offers a cost-effective and highly scalable opportunity to advance the value-added recovery of ***,concerns related to the PTEs'retention capacity and long-term effectiveness limit the implementation of this ***,given that the large-scale demand for ordinary Portland cement from this conventional option has resulted in significant CO_(2) emissions,the technology has recently undergone additional scrutiny to meet the climate mitigation ambition of the Paris Agreement and China's Carbon Neutrality ***,we discuss the ways by which we can integrate innovative strategies,including supplementary cementitious materials,alternative binder solutions,CO_(2) mineralization,CO_(2) curing,and optimization of the supply chain for the profitability and sustainability of PG ***,to maximize the co-benefits in environmental,social,and economic,future research must bridge the gap between the feasibility of expanding these advanced pathways and the multidisciplinary needs.

关键词： cemented paste backfill phosphogypsum carbon dioxide mitigation potentially toxic elements solidification and stabilization

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Micro-macro evolution of mechanical behaviors of thermally damaged rock:A state-of-the-art review

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第7期16卷 2833-2853页

作者： yunmin wang Jun Peng Linfei wang Chuanhua Xu Bibo Dai State Key Laboratory of Safety and Health for Metal Mines Sinosteel Maanshan General Institute of Mining Research Co.Ltd.Maanshan243000China

The influence of thermal damage on macroscopic and microscopic characteristics of different rocks has received much attention in the field of rock *** the rocks are subjected to thermal treatment,the change of macroscopic characteristics and evolution of micro-structure would be induced,ultimately resulting in different degrees of thermal damage in *** better understand the thermal damage mechanism of different rocks and its effect on the rock performance,this study reviews a large number of test results of rock specimens experiencing heating and cooling treatment in the ***,the variations of macroscopic behaviors,including physical parameters,mechanical parameters,thermal conductivity and permeability,are *** variations of mechanical parameters with thermal treatment variables(*** or the number of thermal cycles)are divided into four ***,several measuring methods for microstructure,such as polarizing microscopy,fluorescent method,scanning electron microscopy(SEM),X-ray computerized tomography(CT),acoustic emission(AE)and ultrasonic technique,are ***,the effect of thermal damage on the mechanical parameters of rocks in response to different thermal treatments,involving temperature magnitude,cooling method and thermal cycle,are ***,the limitations and prospects for the research of rock thermal damage are proposed.

关键词： Thermal damage Macroscopic characteristics Microstructure evolution Temperature magnitude Cooling method Thermal cycle

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Erosion wear at the bend of pipe during tailings slurry transportation:Numerical study considering inlet velocity,particle size and bend angle

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International Journal of Minerals,Metallurgy and Materials 2023年第8期30卷 1608-1620页

作者： Qiusong Chen Hailong Zhou yunmin wang Daolin wang Qinli Zhang Yikai Liu School of Resources and Safety Engineering Central South UniversityChangsha 410083China Sinosteel Maanshan General Institute of Mining Research Co. Ltd.Maanshan 243000China Department of Geosciences University of Padova35131 PadovaItaly

Pipeline hydraulic transport is a highly efficient and low energy-consumption method for transporting solids and is commonly used for tailing slurry transport in the mining *** wear(EW)remains the main cause of failure in tailings slurry pipeline systems,particularly at *** is a complex phenomenon influenced by numerous factors,but research in this area has been *** study performs numerical simulations of slurry transport at the bend by combining computational fluid dynamics and fluid particle tracking using a wear *** on the validation of the feasibility of the model,this work focuses on the effects of coupled inlet velocity(IV)ranging from 1.5 to 3.0 m·s^(-1),particle size(PS)ranging from 50 to 650μm,and bend angle(BA)ranging from 45°to 90°on EW at the bend in terms of particle kinetic energy and incidence *** results show that the maximum EW rate of the slurry at the bend increases exponentially with IV and PS and first increases and then decreases with the increase in BA with the inflection point at 60°within these parameter *** comprehensive analysis reveals that the sensitivity level of the three factors to the maximum EW rate is PS>IV>BA,and when IV is 3.0 m/s,PS is 650μm,and BA is 60°,the bend EW is the most severe,and the maximum EW rate is 5.68×10^(-6)kg·m^(-2)·s^(-1).In addition,When PS is below or equal to 450μm,the maximum EW position is mainly at the outlet of the *** PS is greater than 450μm,the maximum EW position shifts toward the center of the bend with the increase in ***,EW at the bend can be reduced in practice by reducing IV as much as possible and using small particles.

关键词： tailings transportation erosion wear pipe wear CFD numerical simulation

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基于矿柱失稳风险分析的采空区关键矿柱重定义与辨识

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岩石力学与工程学报 2024年第1期43卷 216-225页

作者：蔡鑫黄涯帅周子龙袁纪锋臧海智陈璐黄英华付俊王运敏中南大学资源与安全工程学院湖南长沙410083 中钢集团马鞍山矿山研究总院股份有限公司金属矿山安全与健康国家重点实验室安徽马鞍山243000 长沙矿山研究院有限责任公司金属矿山安全技术国家重点实验室湖南长沙410012 中国有色金属工业昆明勘察设计研究院有限公司云南昆明650051

采空区大规模坍塌是地下矿山典型灾害之一,采空区内关键矿柱失稳是其发生的重要诱因。为精准辨识采空区内的关键矿柱,基于采空区矿柱群连锁失稳机制与风险理论,完善采空区关键矿柱基本概念,并创新提出一种基于矿柱失稳风险分析的关键矿... 详细信息

采空区大规模坍塌是地下矿山典型灾害之一,采空区内关键矿柱失稳是其发生的重要诱因。为精准辨识采空区内的关键矿柱,基于采空区矿柱群连锁失稳机制与风险理论,完善采空区关键矿柱基本概念,并创新提出一种基于矿柱失稳风险分析的关键矿柱识别方法,主要包含以下步骤:(1)通过现场调研或经验估计,获得采空区矿柱强度分布特征,进而构建采空区矿柱强度概率密度函数;(2)引入应力扩散最大距离公式,计算各矿柱承载应力,从而获得各矿柱的失稳概率;(3)假定任意矿柱率先失稳,通过矿柱应力动态更新迭代方法,计算单矿柱失稳诱发柱间应力传递与矿柱群系统失稳特征;(4)利用采空区矿柱群承载面积损失率指标定量表征单矿柱失稳致灾性(单矿柱失稳诱发采空区坍塌灾害的严重程度);(5)联合矿柱失稳概率及其致灾性,确定各矿柱失稳风险值,取失稳风险值最高矿柱为采空区关键矿柱。将提出方法应用于Fetr6矿区进行验证,结果表明,该方法所需参数较易获取,计算过程简单,物理意义明确,较传统安全系数法结果更科学、合理,有望在实际工程中取得广泛应用。

关键词：采矿工程采空区地下矿柱群连锁坍塌关键矿柱失稳概率失稳致灾性风险评估

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Experimental study on instability mechanism and critical intensity of rainfall of high-steep rock slopes under unsaturated conditions

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International Journal of Mining Science and Technology 2023年第10期33卷 1243-1260页

作者： Xiaoshuang Li Qihang Li yunmin wang Wei Liu Di Hou Wenbo Zheng Xiong Zhang School of Urban Construction Changzhou UniversityChangzhou 213164China College of Civil Engineering Qilu Institute of TechnologyJinan 250200China Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province Shaoxing 312000China School of Resources and Safety Engineering Chongqing UniversityChongqing 400044China Sinosteel Maanshan General Institute of Mining Research Co.LTD. Maanshan 243000China Guizhou Survey and Design Research Institute for Water Resources and Hydropower Guiyang 550001China School of Engineering University of Northern British ColumbiaPrince George V2K3V3Canada

Two critical factors,namely intense precipitation and intricate excavation,can trigger rock mass disasters in mining *** this study,an indoor rainfall system was developed to precisely regulate the flow and intensity of precipitation.A large-scale model experiment was conducted on a self-designed physical simulation experiment platform to investigate the failure and instability of high-steep rock slopes under unsaturated *** real-time reproduction of the progressive failure process in high-steep rock slopes enabled the determination of the critical rainfall intensity and revealed the mechanism underlying slope *** results indicated that rainfall may be the primary factor contributing to rock mass instability,while continuous pillar mining exacerbates the extent of rock mass *** critical failure stage of high-steep rock slopes occurs at a rainfall intensity of 40 mm/h,whereas a rainfall exceeding 50 mm can induce critical instability and precipitation reaching up to 60 mm will result in slope *** improved region growing segmentation method(IRGSM)was subsequently employed for image recognition of rock mass deformation in underground *** an error comparison with the simple linear iterative cluster(SLIC)superpixel method and the original region growing segmentation method(ORGSM)showed that the average identification error in the X and Y directions by the method was reduced significantly(1.82%and 1.80%in IRGSM;4.70%and 6.26%in SLIC;9.45%and 12.40%in ORGSM).Ultimately,the relationship between rainfall intensity and failure probability was analyzed using the Monte Carlo ***,the stability assessment criteria of rock slope under unsaturated condition were quantitatively and accurately evaluated.

关键词： Open-pit to underground mining Rock slope Rainfall infiltration Excavation unloading Similar physical model Image recognition

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扰动诱发高应力岩石动力响应及岩爆灾变机制

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中国有色金属学报 2024年第7期34卷 2463-2475页

作者：蔡鑫陈立业周子龙王运敏代碧波程传清黄英华中南大学资源与安全工程学院长沙410083 中钢集团马鞍山矿山研究总院股份有限公司金属矿山安全与健康国家重点实验室马鞍山243000 长沙矿山研究院有限责任公司金属矿山安全技术国家重点实验室长沙410012

为揭示深部矿山岩爆发生机制,以硬质红砂岩为研究对象,利用岩石动静组合加载试验系统开展了无轴向静压及4个轴压条件下的不同入射能冲击试验,获得了纯动载及动静组合加载下岩样的力学行为与破坏特征。结果表明:试样最终形态分为完整、... 详细信息

为揭示深部矿山岩爆发生机制,以硬质红砂岩为研究对象,利用岩石动静组合加载试验系统开展了无轴向静压及4个轴压条件下的不同入射能冲击试验,获得了纯动载及动静组合加载下岩样的力学行为与破坏特征。结果表明:试样最终形态分为完整、轴向劈裂、表面剥离、即时型粉碎和滞后型粉碎五类,其中,表面剥离和滞后型粉碎两类破坏模式表现出“岩爆”特征,即Ⅰ型应力−应变曲线、峰后释放能量、岩石自身静应变储能驱动碎片弹射、明显压剪破坏面;根据碎片弹射与动力加载的相对时间,进一步将表面剥离与滞后型粉碎破坏分别对应深地工程中的“即时型”和“滞后型”岩爆;动力扰动是岩爆的关键诱发因素,触发岩爆的临界扰动能随轴压比升高而逐渐降低。

关键词：岩爆动静组合加载深部高应力动力扰动破坏模式临界扰动能

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长江经济带矿产——经济——生态环境系统耦合协调发展研究

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金属矿山 2024年第3期 249-257页

作者：韩信聂闻王运敏张绍轩曾霞芮玥纪王玉莲代碧波王星谢伟倪天华范廷玉王兴明徐良骥西南石油大学地球科学与技术学院四川成都610500 金属矿山安全与健康国家重点实验室安徽马鞍山243000 南京大学地理与海洋科学学院江苏南京210023 安徽理工大学地球与环境学院安徽淮南232000

为贯彻落实“共抓大保护,不搞大开发”的建设思想理念,实现长江经济带绿色可持续发展,基于2001—2019年长江经济带11省市的相关数据,构建了矿产资源—区域经济—生态环境评价体系。通过设定三大子系统的优先发展级,运用熵权法、耦合协... 详细信息

为贯彻落实“共抓大保护,不搞大开发”的建设思想理念,实现长江经济带绿色可持续发展,基于2001—2019年长江经济带11省市的相关数据,构建了矿产资源—区域经济—生态环境评价体系。通过设定三大子系统的优先发展级,运用熵权法、耦合协调度模型定量分析不同优先级下的矿产资源—区域经济—生态环境系统耦合协调发展水平,并从中选取最优发展模式。结果表明:长江经济带三系统耦合协调发展特征显著,整体上由轻度失调区间上升至中级协调区间,且耦合协调度值上游<中游<下游。分省来看,耦合协调程度由低到高依次为云南、江西、贵州、安徽、湖南、上海、重庆、江苏、四川、浙江、湖北。除了湖北、浙江、四川三省位于良好协调区间外,其余8省市均位于中级协调区间。同时,“经济优先”仅适用于短期发展,“环境优先”更适合长期发展。故为促进长江经济带协调可持续发展,整体上应坚持以环境保护为重心的发展战略,个体上要进一步针对不同省市采取差异化的措施。

关键词：长江经济带矿产资源—区域经济—生态环境耦合协调度评价体系

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The intrinsic developmental age signal defines an age-dependent climbing behavior in cucumber

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Horticultural Plant Journal 2024年第3期10卷 797-808页

作者： Zezhou Hong Xinrui wang Zipei Fan Jiahao wang Aiyi Yang Guochao Yan Yong He Huasen wang Zhujun Zhu yunmin Xu College of Horticulture Science Zhejiang Agriculture and Forestry UniversityHangzhouZhejiang 311300China Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable Ministry of Agriculture and Rural AffairsHangzhouZhejiang 311300China Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province HangzhouZhejiang 311300China

The tendril is a climbing organ in cucurbits and functions in physical support and to avoid shading by neighboring ***,how cucurbits produce tendrils to obtain climbing ability is largely *** this study,tendril phenotypes were investigated during different developmental *** results revealed that tendril growth exhibited an age-dependent pattern in *** growth was inhibited,and the tendril was formed as a short tendril[nonfunctional tendril(nonF-tendril),approximately 0.1 cm]during the seedling *** contrast,enhanced cell proliferation and cell expansion led to rapid elongation of the tendril during the climbing stage,and the tendril formed as a functional tendril(F-tendril,approximately 30 cm)to obtain climbing ***-qPCR detection showed that age-dependent tendril growth correlated negatively with the abundance of the conserved age regulator *** induced CsmiR156 to inhibit CsSPLs,and F-tendril formation and climbing ability were delayed in defoliated cucumbers,which confirmed the role of CsmiR156 in regulating tendril growth in ***,exogenous gibberellin(GA)treatment showed that GA positively regulated tendril growth,and RT-qPCR detection showed that the GA bio-synthetic genes and metabolic genes were affected by age pathway,suggesting that the age pathway depended on GA bio-synthetic and metabolic pathway to regulate cell expansion to determine tendril *** summary,our work reveals that change in tendril type is an important marker of phase transition in cucumber,and tendril growth is regulated by an intrinsic developmental age signal,ensuring that the cucumber obtains climbing ability at a suitable age.

关键词： Cucumber Tendril Age CsmiR156 CsSPL Climbing ability

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到达角起伏对上行星地激光通信系统性能的影响（英文）

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红外与激光工程 2018年第1期47卷 233-241页

作者：王怡王运敏马晶中国计量大学信息学院浙江杭州310018 哈尔滨工业大学可调谐激光器国家重点实验室黑龙江哈尔滨150001 金属矿山安全与健康国家重点实验室安徽马鞍山243000

在Kolmogorov湍流模型下,建立了到达角起伏对星地激光通信误码性能影响的理论模型。基于该模型,推导了星地激光通信系统误码率的闭合表达式。综合考虑光强闪烁、光束漂移和到达角起伏,推导出三者共同作用下,星地系统上行链路的接收光强... 详细信息

在Kolmogorov湍流模型下,建立了到达角起伏对星地激光通信误码性能影响的理论模型。基于该模型,推导了星地激光通信系统误码率的闭合表达式。综合考虑光强闪烁、光束漂移和到达角起伏,推导出三者共同作用下,星地系统上行链路的接收光强概率密度解析式以及误码率的闭合表达式。文中采用的调试方式是适合星地激光通信的相干探测圆偏振调制。针对上行链路,仿真分析了弱、中、强湍流下,三者共同作用时,星地激光通信系统的误码率,并与不考虑到达角起伏条件下进行了比较。还分析了到达角起伏与误码率的变化关系,以及在考虑发射功率受限的条件下,三者共同作用对系统性能的影响。研究结果表明,除了光强闪烁和光束漂移以外,到达角起伏也是通信性能中不可或缺的因素。

关键词：星地激光通信 Kolmogorov湍流到达角起伏误码率

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地下矿山中多传感器融合里程计的研究

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测绘科学 2023年第9期48卷 171-179页

作者：张昊晟聂闻王运敏徐修平福州大学先进制造学院福建泉州362200 中国科学院海西研究院泉州装备制造研究中心福建泉州362200 金属矿山安全与健康国家重点实验室安徽马鞍山243000

针对矿山地下环境中无法使用全球导航卫星系统等设备进行高精度定位,而仅依靠激光雷达进行定位和建图存在困难的问题,该文提出了一种基于IMU、轮式编码器和固态激光雷达紧耦合的里程计算法,该方法将在进行打滑检测后自适应地判断选择使... 详细信息

针对矿山地下环境中无法使用全球导航卫星系统等设备进行高精度定位,而仅依靠激光雷达进行定位和建图存在困难的问题,该文提出了一种基于IMU、轮式编码器和固态激光雷达紧耦合的里程计算法,该方法将在进行打滑检测后自适应地判断选择使用IMU或编码器的数据预测线性速度,补偿了常规LIO算法中IMU数据会出现累积误差的缺陷。固态激光雷达所适配的先进的LIO算法被用作本文的对比算法,在室内长走廊和尾矿库排洪涵洞中进行了实际测试。结果表明:该文提出的算法在精确度和鲁棒性上均更优,可有效适用于地下矿山的长走廊式环境中。

关键词：激光里程计轮式编码器打滑检测地下长走廊误差状态卡尔曼滤波器

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