23 WORLD’S FIRST 10-METER FULLY MECHANIZED LONGWALL MINING IN EXTRATHICK COAL SEAM: A CHINESE BREAKTHROUGH Hongpu Kang1, 2, Gang Xu2, Jinhu Zhang1, 2, Fuqiang Gao1,2 1506 RESEARCH AND APPLICATION OF KEY TECHNOLOGIES FOR AN ULTRA-HIGH-POWER INTELLIGENT AND HIGH-EFFICIENCY MAIN INCLINED SHAFT BELT CONVEYOR *Jianli Dai, Xingyuan Song, Ke Qian, Anlei Zhou 1516 EXPERIMENTAL STUDY ON ROCK BREAKING DIFFERENCE UNDER DIFFERENT PENETRATION PARAMETERS OF DISC-LIKE HYBRID BIT SPHERICAL AND CONICAL INSERTED TEETH UNDER IN-SITU STRESS ENVIRONMENT *Xin Huang1,2,3, Jucai Chang1, Chuanming Li1, Lina Jia4, Dongdong Pang1, Chao Qi1, Lei Fan1 1524 AUTOMATIC OPERATOR GUIDANCE SYSTEM IN OPEN PIT COAL MINING TO INCREASE TRUCK PRODUCTIVITY USING ADAPTIVE MACHINE LEARNING Ikhsan Maulana1*, Julian Eryanto2, Sukrisno3 1536 PREDICTING THE PERFORMANCE OF CONTINUOUS MINER THROUGH A NEW CUTTABILITY INDEX * Kaushik Dey 1, A. K. Patra1, C.U. Kumar1 1546 RESEARCH AND APPLICATION OF HARD ROOF HYDRAULIC FRACTURING FOR STRONG STRATA PRESSURE CONTROL IN THE WORLD’S FIRST 10-METER ULTRALARGE MINING HEIGHT FULLY MECHANIZED FACE *Yan-jun FENG1,2,3, Hongpu KANG 1, 2, 3, Kaikai ZHAO 1, 2, 3 1555 FIELD-SCALE DEMONSTRATION ON UNDERGROUND COAL GASIFICATION TO UTILIZE UNTAPPED RESOURCES: A FIELD TRIAL ON REMAINED COAL SEAM IN SURFACE MINE * R. Iriguchi1, A. Hamanaka1, K. Itakura2, G. Deguchi3, K. Takahashi2, J. Kodama4, T. Sasaoka1, H. Shimada1 1565 CARBON REDUCTION PATHWAYS OF CEMENTED BACKFILL MINING FOR COAL MINES *Xuejie Deng, Ning Jia, Hao Liu, Tongda Zheng, Shike Wang, Qingxiang Liu, Jichu Wang, Yile Zhao, Shuxin Yang 1576 IN-SITU MINERAL CARBONATION IN ABANDONED COAL MINES BY USING CO2 MICRO-NANOBUBBLE *A. Hamanaka1, K. Itakura2, G. Deguchi3, K. Takahashi2, J. Kodama4, J. Kim2, Y. Hama2, T. Sasaoka1, H. Shimada1 1586 DRIVING SELF-SUFFICIENCY IN COKING COAL : INNOVATIVE APPROACH TO OPTIMISE INDIGENOUS RESOURCE AND REDUCE IMPORT Rajesh Kumar 1597
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