CAVING

作品数：68被引量：193H指数：9
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相关领域：矿业工程更多>>
相关作者：刘吉波戴华阳廉旭刚刘继岩更多>>
相关机构：中国矿业大学（北京）更多>>
相关期刊：《钻井液与完井液》《International Journal of Sediment Research》《China Coal》《疯狂英语（新读写）》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划国家科技支撑计划安徽省自然科学基金更多>>
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Continuous-discontinuous analysis of bench blasting in open-pit mining: Influences of hole packing and caving holes被引量：1
《Rock Mechanics Bulletin》2024年第4期34-40,共7页Xueya Wang Yiming Zhang Chun Feng Timon Rabczuk 
the financial support by the National Natural Science Foundation of China(NSFC)(52178324).
Bench blasting is commonly used in open-pit mining.Some design parameters such as positions of hole packing and caving holes have great influences on the blasting effects.In this work,with a hybrid discrete-finite ele...
关键词：Continuous-discontinuous element method (CDEM) Bench blasting Hole packing Caving hole Numerical simulations 
Experimental study on the interrelation of multiple mechanical parameters in overburden rock caving process during coal mining in longwall panel被引量：1
《International Journal of Coal Science & Technology》2023年第4期265-289,共25页Daixin Deng Hongwei Wang Lili Xie Zeliang Wang Jiaqi Song 
supported by the State Key Research Development Program of China(2022YFC3004602);Independent Research fund of Joint NationalLocal Engineering Research Centre for Safe and Precise Coal Mining(Anhui University of Science and Technology)(EC2022001);the National Natural Science Foundation of China(41872205);Beijing Natural Science Foundation(8202041);the Fundamental Research Funds for the Central Universities(2022YJSLJ08,2022JCCXNY03).
In order to comprehend the dynamic disaster mechanism induced by overburden rock caving during the advancement of a coal mining face, a physical simulation model is constructed basing on the geological condition of th...
关键词：Overburden rock caving Multiple mechanical parameters Interrelation characterization Precursor information 
洞穴探险
《疯狂英语（新读写）》2021年第4期43-45,63,共4页江丽 
杰森·斯托里和他的五个朋友在洞穴探险中,碰上了一直下个不停的大雨,之后会发生什么呢?他们还能走出洞穴吗?The rain came down heavily.Jason Storie heard it but was not worried as he prepared for a day of caving with five fri...
关键词：CAVING 洞穴探险 CANADA 
Measurement of overburden failure zones in close-multiple coal seams mining被引量：9
《International Journal of Mining Science and Technology》2021年第1期43-50,共8页Yang Li Yuqi Ren Syd S.Peng Haozhou Cheng Nan Wang Junbo Luo 
The research is supported by National Key R&D Program of China(No.2017YFC060300204);National Natural Science Foundation of China(No.52074293);Hebei Province Natural Science Foundation of China(No.E2020402041);Yue Qi Young Scholar Project,CUMTB and Yue Qi Distinguished Scholar Project(No.800015Z1138);China University of Mining&Technology,Beijing.
In the Kaiping Coal field,mining of five coal seams,located within 80 m in the Kailuan Group,#5,#7,#8,#9 and#12 coal seam,is difficult due to small interburden thickness,concentrated stress distributions,high coal sea...
关键词：Overburden measurement GPR survey Close multiple coal seam Secondary roof break Periodic triangular cave Overburden caving 
Numerical investigation on the caving mechanism with different standard deviations of top coal block size in LTCC被引量：3
《International Journal of Mining Science and Technology》2020年第5期583-591,共9页Jiachen Wang Weijie Wei Jinwang Zhang Brijes Mishra Ang Li 
supported by the National Key R&D Plan of China,China(Grant No.2018YFC0604501);the Natural Science Foundation of China,China(Grant Nos.51934008,51674264,51904305);the Research Fund of the State Key Laboratory of Coal Resources and Safe Mining,CUMT,China(Grant No.SKLCRSM19KF023).
The size distribution of the broken top coal blocks is an important factor,affecting the recovery ratio and the efficiency of drawing top coal in longwall top coal caving(LTCC)mining panel.The standard deviation of to...
关键词：Longwall top coal caving mining Standard deviation of top coal size Recovery ratio Drawing body Boundary of top coal Contact force 
Numerical simulation of roof cavings in several Kuzbass mines using finite-difference continuum damage mechanics approach被引量：3
《International Journal of Mining Science and Technology》2020年第2期157-166,共10页Mikhail Eremin Gabriel Esterhuizen Igor Smolin 
This work was supported by the Russian Science Foundation,under grant 19-71-00083.Authors also would like to express gratitude to an anonymous reviewer whose comments helped to improve the quality of paper,and editors of the journal.
An essential stage of mine design is an estimation of the steps of the first and periodic roof caving in longwall mines.Generally,this is carried out using the field experience and can be much enhanced by numerical si...
关键词：LONGWALL mining Rock mass Underground OPENINGS ROOF CAVING ABUTMENT pressure Numerical simulation 
Breaking mechanism and control technology of sandstone straight roof in thin bedrock stope被引量：5
《International Journal of Mining Science and Technology》2020年第2期259-263,共5页Hualei Zhang Min Tu Hua Cheng Yongzhi Tang 
The authors are grateful to the National Natural Science Foundation of China(Nos.51574007 and 51604007).
The key problem to be solved urgently is how to avoid the occurrence of support break-off and water inrush in the stoping of sandstone straight roof under the action of load transfer in unconsolidated aquifer.For this...
关键词：Thin BEDROCK Key STRATUM COMPULSIVE ROOF CAVING 
Fracturing,caving propagation and influence of mining on groundwater above longwall panels–a review of predictive models被引量：11
《International Journal of Mining Science and Technology》2020年第1期49-54,共6页Bruce Hebblewhite 
Historically there have been a number of different hypotheses and empirical models developed in an attempt to describe the nature of fracturing above longwall panels in underground coal mining.The motivation for suchm...
关键词：LONGWALL MINING SUBSIDENCE GROUNDWATER CAVING Underground coal MINING 
Prediction of airway resistance in panel cave mines using a discrete and continuum model被引量：2
《International Journal of Mining Science and Technology》2019年第5期781-784,共4页Kayode M.Ajayi Khosro Shahbazi Purushotham Tukkaraja Kurt Katzenstein 
support from the National Institute for Occupational Safety and Health(NIOSH)(No.200-2014-59613)for conducting this research.
The configuration of an airway(or production drift)in panel cave mines is different from the typical(straight)mine airway designs.The drawpoints are connected to the airway(cross-cuts),which allows airflow from the ca...
关键词：AIRWAY resistance CAVING mining method PANEL CAVE mines Broken ROCKS POROUS media Computational fluid dynamics(CFD) 
Forecasting vulnerability of deep extraction level excavations to drawinduced cave loads被引量：3
《Journal of Rock Mechanics and Geotechnical Engineering》2019年第3期527-534,共8页Matthew E.Pierce 
Block and panel caving methods are increasingly used for mining of large and strong orebodies at large depths below the ground surface (>1 km). This paper focuses on the production phase of caving when the extraction ...
关键词：Block CAVING Panel CAVING Extraction level DRAW control SQUEEZING 
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