Roof Fractures of Near-Vertical and Extremely Thick Coal Seams in Horizontally Grouped Top-Coal Drawing Method Based on the Theory of a Thin Plate
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- Shengquan He & Dazhao Song & Zhenlei Li & Xueqiu He & Jianqiang Chen & Taoping Zhong & Quan Lou, 2020. "Mechanism and Prevention of Rockburst in Steeply Inclined and Extremely Thick Coal Seams for Fully Mechanized Top-Coal Caving Mining and Under Gob Filling Conditions," Energies, MDPI, vol. 13(6), pages 1-26, March.
- Vieira Jr., Hélcio & Sanchez, Susan & Kienitz, Karl Heinz & Belderrain, Mischel Carmen Neyra, 2011. "Generating and improving orthogonal designs by using mixed integer programming," European Journal of Operational Research, Elsevier, vol. 215(3), pages 629-638, December.
- Dongdong Qin & Xufeng Wang & Dongsheng Zhang & Weiming Guan & Lei Zhang & Mengtang Xu, 2019. "Occurrence Characteristic and Mining Technology of Ultra-thick Coal Seam in Xinjiang, China," Sustainability, MDPI, vol. 11(22), pages 1-19, November.
- Wei-bin Guo & Hong-sheng Wang & Guo-wei Dong & Lei Li & Yao-guang Huang, 2017. "A Case Study of Effective Support Working Resistance and Roof Support Technology in Thick Seam Fully-Mechanized Face Mining with Hard Roof Conditions," Sustainability, MDPI, vol. 9(6), pages 1-17, June.
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- Zheng Wu & Jun Li & Wen-Long Zhang & Chen Li, 2022. "Analysis of the Failure Characteristics and Main Controlling Factors of Surrounding Rocks Using the Standard Specimen with a Pre-Existing Hole," Sustainability, MDPI, vol. 14(21), pages 1-18, November.
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Keywords
near-vertical coal seams; horizontally grouped top-coal drawing method; fracture modes; coordinate conversion; the maximum tensile stress; the first fracture span; periodic fractures span;All these keywords.
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