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《Coal Science and Technology》 2017-01
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Study on the time and space characteristics of continuous curved beam under backfilling mining condition

Liu Jiangong;Zhao Jiawei;Yang Hongzeng;Hebei University of Engineering;National Energy Backfilling Mining Technology Key Laboratory;Hebei Coal Research Institute;  
In order to master the time and space characteristics of backfill mining continuous curved beam in the process of formation,development and stability,the time-dependent variable in the theoretical and engineering formula was researched deeply and the mathematical relationship between deformation of continuous curved beam and time was resulted.And then two-dimensional similar material test was conducted to simulate time and space evolution of strata movement under backfilling mining condition,describing the displacement distribution characteristics of continuous curved beam as time goes by,based on which the time and space relationship among roof subsidence,sinking speed,backfilling body compression speed,working face advancing speed and dynamic deformation of continuous curved beam was made clear.Understanding the behavior of continuous curved beam within time and space can provide design basis for backfilling mining process well.
【Fund】: 河北省重大技术创新资助项目(11276722Z)
【CateGory Index】: TD823.7
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Chinese Journal Full-text Database 10 Hits
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 LV Zhao-heng;WANG Dong;School of Coal Engineering, Shanxi Datong University;;Numerical Simulation Analysis on the Stability of Roadways in the Roadway-chambe Type of Shortwall Face Mining[J];山西大同大学学报(自然科学版);2015-06
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