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Mechanical behaviors of coal measures and ground control technologies for China's deep coal mines-A review

Journal of Rock Mechanics and Geotechnical Engineering 2023年第1期15卷 37-65页

作者： Hongpu Kang Fuqiang Gao Gang Xu huaiwei ren CCTEG Coal Mining Research Institute BeijingChina Coal Mining Branch China Coal Research InstituteBeijingChina State Key Laboratory of Coal Mining and Clean Utilization China Coal Research InstituteBeijingChina

This paper reviews the major achievements in terms of mechanical behaviors of coal measures,mining stress distribution characteristics and ground control in China’s deep underground coal mining.The three main aspects of this review are coal measure mechanics,mining disturbance mechanics,and rock support mechanics.Previous studies related to these three topics are reviewed,including the geo-mechanical properties of coal measures,distribution and evolution characteristics of mining-induced stresses,evolution characteristics of mining-induced structures,and principles and technologies of ground control in both deep roadways and longwall faces.A discussion is made to explain the structural and mechanical properties of coal measures in China’s deep coal mining practices,the types and dis-tribution characteristics of in situ stresses in underground coal mines,and the distribution of mining-induced stress that forms under different geological and engineering conditions.The theory of pre-tensioned rock bolting has been proved to be suitable for ground control of deep underground coal roadways.The use of combined ground control technology(e.***.ground support,rock mass modification,and destressing)has been demonstrated to be an effective measure for rock control of deep roadways.The developed hydraulic shields for 1000 m deep ultra-long working face can effectively improve the stability of surrounding rocks and mining efficiency in the longwall face.The ground control challenges in deep underground coal mines in China are discussed,and further research is recommended in terms of theory and technology for ground control in deep roadways and longwall faces.

关键词： Deep underground coal mine Mechanical behavior Mining-induced stress Mining-induced fractures Ground control for roadways Ground control for working face

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Research and practice of intelligent coal mine technology systems in China

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International Journal of Coal Science & Technology 2022年第2期9卷 19-35页

作者： Guofa Wang huaiwei ren Guorui Zhao Desheng Zhang Zhiguo Wen Lingyu Meng Shixin Gong Coal Mining and Designing Department Tiandi Science and Technology Co.LtdBeijing 100013China CCTEG Coal Mining Research Institute Co. Ltd.Beijing 100013China China Coal Technology and Engineering Group Corp Beijing 100013China Mining Design Institute China Coal Research InstituteBeijing 100013China Beijing Tianma Intelligent Control Technology Co. Ltd.Beijing 101320China

This study considered the role of coal as China’s basic energy source and examines the development of the coal industry.We focused on the intelligent development of coal mines,and introduced the“Chinese mode”of intelligent mining in underground coal mines,which uses complete sets of technical equipment to propose classifcation and grading standards.In view of the basic characteristics and technical requirements of intelligent coal mine systems,we established a digital logic model and propose an information entity and knowledge map construction method.This involves an active information push strategy based on a knowledge demand model and an intelligent portfolio modeling and distribution method for collaborative control of coal mines.The top-level architecture of 5G+intelligent coal mine systems combines intelligent applications such as autonomous intelligent mining,human–machine collaborative rapid tunneling,unmanned auxiliary transportation,closed-loop safety control,lean collaborative operation,and intelligent ecology.Progress in intelligent mining technology was described in terms of a dynamic modifed geological model,underground 5G network and positioning technology,intelligent control of the mining height and straightness of the longwall working face,and intelligent mining equipment.The development of intelligent coal mines was analyzed in terms of its imbalances,bottlenecks,and the compatibility of large-scale systems.Implementation ideas for promoting the development of intelligent coal mines were proposed,such as establishing construction standards and technical specifcations,implementing classifcation and grading standards according to mining policy,accelerating key technology research,and building a new management and control model.

关键词： Intelligent coal mine Digital logic model 5G+intelligent coal mine Top-level architecture Application system

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Intelligent and ecological coal mining as well as clean utilization technology in China: Review and prospects

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International Journal of Mining Science and Technology 2019年第2期29卷 161-169页

作者： Guofa Wang Yongxiang Xu huaiwei ren Mining Institute China Coal Research Institute Coal Mining and Designing Department Tiandi Science & Technology Co. Ltd. State Key Laboratory of Coal Mining and Clean Utilization China Coal Research Institute

Coal is an essential fossil fuel in China; however, coal mining and its utilization are being under the increasing pressure from ecological and environmental protection. Therefore, the consulting project "Technical Revolution in Ecological and Efficient Coal Mining and Utilization & Intelligence and Diverse Coordination of Coal-based Energy System," initiated by Chinese Academy of Engineering, puts forward three stages(3.0, 4.0 and 5.0) of China's coal industry development strategy. Aimed at "reduced staff,ultra-low ecological damage, and emission level near to natural gas," breakthroughs should be achieved in the following three key technologies during the China Coal Industry 3.0 stage(2016–2025): including intelligent coal mining, ecological mining, ultra-low emission and environmental protection. This paper focuses on the development trends of the China Coal Industry 3.0 and its support for China Coal Industry 4.0 and 5.0 is analyzed and prospected as well, which may offer technical assistance and strategy orientation for realizing the transformation from traditional coal energy to clean energy.

关键词： Intelligent mining Ecological mining Clean utilization Environmental protection China’s coal industry

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Dynamic impact experiment and response characteristics analysis for 1:2 reduced-scale model of hydraulic support

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International Journal of Mining Science and Technology 2021年第3期31卷 347-356页

作者： huaiwei ren Desheng Zhang Shixin Gong Kai Zhou Chenyang Xi Ming He Tijian Li CCTEG Coal Mining Research Institute Beijing 100013China Mining Design Ilnstitute China Coal Research InstituteBeijing 100013China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

It is significant to research the impact resistance properties of hydraulic support due to its key support role in the fully mechanized mining face.However,it is difficult for the entire hydraulic support to implement the impact experiment underground and analyze the response characteristic.Therefore,a dynamic impact experiment for the entire hydraulic support was proposed in this paper,where a 1:2 reducedscale model of hydraulic support was designed and its response characteristics under dynamic impact load were analyzed.Firstly,a comprehensive monitoring scheme was proposed to achieve an effective monitoring for dynamic response of hydraulic support.Secondly,a multi-scale impact experiment was carried out for the entire hydraulic support and dynamic behaviors of hydraulic support under the multi-scale impact load were revealed by experimental data.Then a dynamic impact experiment of the entire hydraulic support was simulated in ADAMS with the same experiment conditions,and the experimental and simulation data were verified mutually.Finally,the characteristics of energy conversion and dissipation of the entire experiment system after impact were analyzed.The experiment results showed that the impact resistance properties of hydraulic support largely depended on the initial support conditions and different vertical rigidities affected energy distribution proportion of the entire support system.

关键词： Hydraulic support Impact experiment Characteristics analysis Dynamics simulation ADAMS

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智慧矿山系统工程及关键技术研究与实践

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煤炭学报 2024年第1期49卷 181-202页

作者：王国法庞义辉任怀伟战凯杜明张勇程健杜毅博张建中巩师鑫王丹丹孟令宇孟积渐中煤科工开采研究院有限公司北京100013 北京天玛智控科技股份有限公司北京101399 安标国家矿用产品安全标志中心北京100013 煤炭科学研究总院有限公司北京100013 矿冶科技集团有限公司北京100160

针对智慧矿山复杂巨系统建设过程中存在的问题,提出了智慧矿山建设的总体技术架构,并分别从智慧矿山系统模型构建、地下空间重构与模型动态更新、机器视觉测量技术、瓦斯环境射频防爆测试方法、矿山安全闭环管控体系、智慧矿山标准体系... 详细信息

针对智慧矿山复杂巨系统建设过程中存在的问题,提出了智慧矿山建设的总体技术架构,并分别从智慧矿山系统模型构建、地下空间重构与模型动态更新、机器视觉测量技术、瓦斯环境射频防爆测试方法、矿山安全闭环管控体系、智慧矿山标准体系等方面进行了详细阐述。将智慧矿山分为信息感知支撑层、边缘计算层、云数据中心、多型网络、矿山智能生产管控平台、矿山智能生产系统、智慧矿山运维管理系统,构建了基于多系统深度融合的智慧矿山技术架构。基于智慧矿山知识图谱及信息抽取技术,构建了以数据创新为驱动、通信网络为基础、数据算力为核心的智慧矿山系统模型。构建了以机器视觉感知信息为主、其他感知信息为辅的矿山井下三维视觉空间模型,提出了矿山井下场景三维视觉与空间重建框架,实现了矿山井下三维空间重构与动态更新。开发了基于机器视觉技术的井下设备位姿与煤岩界面识别算法,实现了对井下综采装备群及煤岩分界面的同时空测量。探讨了井下瓦斯环境下现行防爆标准对5G基站功率的限制及存在的不足,设计开发了射频电磁能防爆专用试验装置,为提升井下5G基站功率阈值提供了方法借鉴。提出了融合灾害信息全面感知、防控方案自主决策、防控装备协同控制的矿井灾害闭环管控系统技术架构,实现井下灾害的超前预测预警与协同防控。构建了智能化煤矿标准体系框架,剖析了我国煤矿与金属矿山智能化建设典型案例,提出了智慧矿山建设发展趋势及建议。

关键词：智慧矿山系统工程机器视觉射频电磁能防爆安全闭环管控标准体系

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一测多评法同时测定蒲元和胃胶囊中7种成分含量

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中国药业 2024年第9期33卷 110-114页

作者：李怀伟王劲任仲丽朱伟堃张朋山东省菏泽市食品药品检验检测研究院山东菏泽274000

目的建立同时测定蒲元和胃胶囊中延胡索乙素、盐酸巴马汀、α-香附酮、咖啡酸、木犀草素、甘草苷、甘草酸铵的含量的一测多评法。方法采用高效液相色谱法测定,色谱柱为Diamonsil C_(18)柱(250 mm×4.6 mm,5µm),流动相为乙腈-0.1%磷酸溶... 详细信息

目的建立同时测定蒲元和胃胶囊中延胡索乙素、盐酸巴马汀、α-香附酮、咖啡酸、木犀草素、甘草苷、甘草酸铵的含量的一测多评法。方法采用高效液相色谱法测定,色谱柱为Diamonsil C_(18)柱(250 mm×4.6 mm,5µm),流动相为乙腈-0.1%磷酸溶液(梯度洗脱),流速为1.0 mL/min,柱温为30℃,检测波长为237 nm,进样量为10µL。以木犀草素为内参物,建立与延胡索乙素、盐酸巴马汀、α-香附酮、咖啡酸、甘草苷、甘草酸铵的相对校正因子;采用一测多评法和外标法检测7种成分的含量,比较计算值与实测值的差异。结果延胡索乙素、盐酸巴马汀、α-香附酮、咖啡酸、木犀草素、甘草苷、甘草酸铵的质量浓度分别在2.67~133.41µg/mL、0.89~44.60µg/mL、1.36~67.85µg/mL、1.53~76.65µg/mL、2.00~100.12µg/mL、3.00~150.20µg/mL、8.51~425.61µg/mL范围内与峰面积线性关系良好(r≥0.9995,n=6);精密度、稳定性、重复性试验结果的RSD均小于2.0%(n=6);平均加样回收率分别为99.09%,97.34%,97.42%,96.85%,98.60%,99.20%,99.09%,RSD分别为0.72%,1.68%,1.75%,1.29%,0.69%,0.79%,0.97%(n=9)。延胡索乙素、盐酸巴马汀、α-香附酮、咖啡酸、木犀草素、甘草苷、甘草酸铵的相对校正因子分别为1.3159,0.7059,1.1805,1.2241,1.2385,6.7178;在不同色谱柱、色谱仪、流速、柱温下的重复性均良好,结果的RSD均低于1.50%。一测多评法与外标法的含量计算结果相对误差的绝对值均小于2.0%。结论该方法重复性好、结果准确可靠,可用于蒲元和胃胶囊的质量控制。

关键词：蒲元和胃胶囊一测多评法延胡索乙素盐酸巴马汀 α香附酮咖啡酸木犀草素甘草苷甘草酸铵

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浅水三角洲物源、砂体构型与储层特征研究——以准噶尔盆地永进—莫西庄地区侏罗系三工河组二段为例

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地质论评 2024年第1期70卷 330-345页

作者：冯怀伟许淑梅王金铎张关龙曾治平任新成修金磊王千军潍坊科技学院山东潍坊262700 中国海洋大学海底科学与探测技术教育部重点实验室山东青岛266100 中国海洋大学海洋地球科学学院山东青岛266100 深海圈层与地球系统前沿中心山东青岛266100 中石化股份公司胜利油田分公司勘探开发研究院山东东营257000

针对准噶尔盆地腹部侏罗系三工河组物源、砂体构型及储层物性认识存在争议的问题,笔者等基于岩芯、录井、钻井等方面的资料,结合前人在准噶尔盆地周缘磷灰石及锆石年龄数据,运用沉积学、层序地层学、沉积盆地分析及储层沉积学的基本原... 详细信息

针对准噶尔盆地腹部侏罗系三工河组物源、砂体构型及储层物性认识存在争议的问题,笔者等基于岩芯、录井、钻井等方面的资料,结合前人在准噶尔盆地周缘磷灰石及锆石年龄数据,运用沉积学、层序地层学、沉积盆地分析及储层沉积学的基本原理和方法对三工河组二段物源方向、远近和类型、沉积体系展布、砂体构型及储层物性之间的关系进行了系统的研究。研究表明,在敞流盆地快速抬升/缓慢沉降的构造背景下形成辫状河三角洲退积式沉积序列,在五级层序地层格架中,河道强冲刷叠置砂体见于第1、2砂组,三角洲退积,分支河道强烈冲刷,导致河道砂体叠置,微相类型单一,单砂体厚度向上变薄,砂体全区稳定分布,储集性较好。河道弱冲刷叠置砂体见于第3、5砂组,三角洲退积,分支河道冲刷不明显,形成河道“二元结构”,单砂体厚度向上变薄,粒度变细,储集性好;河口坝组合砂体见于第4砂组,在三角洲退积过程中,水下分流河道末端形成河口坝,总体岩性向上变细,砂体不连续,储集性好,远砂坝席状砂组合砂体见于第6、7砂组,砂体零星分布,储集性很差。在浅水、低可容纳空间、快速抬升/缓慢幕式沉降构造背景之下,浅水三角洲的物源的方向、远近及类型是影响沉积微相展布的关键因素,也是影响砂体构型及其储层物性的物质基础。

关键词：物源砂体构型储层物性沉积微相三工河组二段准噶尔盆地

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Conceptual modelling approach of mechanical products based on functional surface

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High Technology Letters 2007年第3期13卷 249-253页

作者：尚勇 Huang Kezheng Zhang Qingping ren huaiwei School of Mechanical Engineering Shandong University Jinan 250061 P.R. China School of Mechanical Engineering Jinan University Jinan 250022 P.R. China

A modeling framework based on functional surface is presented to support conceptual design of mechanical products. The framework organizes product information in an abstract and multilevel manner. It consists of two mapping processes: Function decomposition process and form reconstitution process. The steady mapping relationship from function to form (function-functional surface-form) is realized by taking functional surface as the middle layer. It farthest reduces the possibilities of combinatorial explosion that can occur during function decomposition and form reconstitution. Finally, CAD tools are developed and an auto-bender machine is applied to demonstrate the proposed approach.

关键词：概念模型功能表面 CAD 机械产品

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Distribution,cycling and impact of water in the Earth's interior

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National Science Review 2017年第6期4卷 879-891页

作者： huaiwei Ni Yong-Fei Zheng Zhu Mao Qin Wang ren-Xu Chen Li Zhang CAS Key Laboratory of Crust-Mantle Materials and Environments School of Earth and Space Sciences University of Science and Technology of China School of Earth Sciences and Engineering Nanjing University

The Earth’s deep interior is a hidden water reservoir on a par with the hydrosphere that is crucial for keeping the Earth as a habitable planet. In particular, nominally anhydrous minerals(NAMs) in the silicate Earth host a significant amount of water by accommodating H point defects in their crystal lattices. Water distribution in the silicate Earth is highly heterogeneous, and the mantle transition zone may contain more water than the upper and lower mantles. Plate subduction transports surface water to various depths, with a series of hydrous minerals and NAMs serving as water carriers. Dehydration of the subducting slab produces liquid phases such as aqueous solutions and hydrous melts as a metasomatic agent of the mantle.Partial melting of the metasomatic mantle domains sparks off arc volcanism, which, along with the volcanism at mid-ocean ridges and hotspots, returns water to the surface and completes the deep water cycle. There appears to have been a steady balance between hydration and dehydration of the mantle at least since the Phanerozoic. Earth’s water probably originates from a primordial portion that survived the Moon-forming giant impact, with later delivery by asteroids and comets. Water could play a critical role in initiating plate tectonics. In the modern Earth, the storage and cycling of water profoundly modulates a variety of properties and processes of the Earth’s interior, with impacts on surface environments. Notable examples include the hydrolytic weakening effect on mantle convection and plate motion, influences on phase transitions(on the solidus of mantle peridotite in particular) and dehydration embrittlement triggering intermediate-to deep-focus earthquakes. Water can reduce seismic velocity and enhance electrical conductivity, providing remote sensing methods for water distribution in the Earth’s interior.Many unresolved issues around the deep water cycle require an integrated approach and concerted efforts from multiple disciplines.

关键词： water Earth’s interior mantle subduction partial melting

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综采工作面液压支架状态感知与分析技术研究

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工矿自动化 2023年第10期49卷 1-7,103页

作者：李建任怀伟巩师鑫煤炭科学研究总院开采研究分院北京100013 中煤科工开采研究院有限公司智能化开采分院北京100013 天地科技股份有限公司开采设计事业部北京100013

综采工作面智能化是煤矿智能化的关键环节,液压支架状态感知与分析是综采工作面智能化的前提和智能控制的基础。液压支架压力和位姿是液压支架能够直接监测的关键状态数据,二者进行融合分析是液压支架智能控制和智能执行的依据。以液压... 详细信息

综采工作面智能化是煤矿智能化的关键环节,液压支架状态感知与分析是综采工作面智能化的前提和智能控制的基础。液压支架压力和位姿是液压支架能够直接监测的关键状态数据,二者进行融合分析是液压支架智能控制和智能执行的依据。以液压支架压力和位姿为研究对象,介绍了智能化综采工作面状态感知架构。从液压支架受力和上覆岩层矿压2个角度总结了液压支架压力感知与分析技术现状,指出目前基于大数据的矿压分析尚未应用、工作面矿压与巷道压力数据未实现同步测量、未实现整个采场的全面数据分析、对超前液压支架的关注度不够。阐述了液压支架位姿感知原理和方法,总结了现有液压支架位姿分析方法。分析了液压支架压力-位姿融合分析的必要性,总结了现有的液压支架压力-位姿融合分析方法。展望了综采工作面液压支架状态感知与分析技术的发展趋势,即深入研究大数据技术、多维数据融合感知与分析技术、数字孪生技术在液压支架状态感知与分析中的应用,以实现液压支架状态数据精细化分析、智能控制与决策。

关键词：煤矿智能化综采工作面液压支架矿压分析位姿测量压力-位姿融合分析

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