1Several Problems and Countermeasures of Coal Resource Exploitation in Our Country1-42Re-enforcing Effort Development Opencast Coal Mining and Realize Coal Industry Continuable DevelopmentGUO Zhao-hua5-83Application of semi-continuous mining technology system in opencastLI Ke-min, WANG Bing, ZHANG You-di, BIAN Shu-xing, HUANG Yue-jun, YANG Yun-hao9-144Preliminary Discussion on Building and Maintenance of Dump and Road in Antaibao Open-pit Coal MineZHAO Jian-jun15-16,205Roof security thickness determination of underground goaf under open-pit mineLI Di-yuan, LI Xi-bing, ZHAO Guo-yan17-206Proper Redistribution of Dump in Pingzhuang Western Open-pit Coal Mine21-227Optimization Scheme of Enlarging-slope Area Mining in Heidiagou Open-pit Coal Mine23-248Measures of Enhancing Coal Resource Coefficient of Recovery in Dafeng Open-pit Coal MineWEI Xue-zhong25-269Optimization Design of Capital Construction and Stripping in TIGYIT Open-pit Coal Mine of Burma27-2910Study of Antaibao Open-pit Coal and Mine United Lay Belt Conveyor30-3211Risk Control of Slope Going to Final Pit Slope Process in Pingzhuang Western Open-pit Coal Mine33-3412Governing Method of Mountain Massif Coast35-3713Application of Underground Rock Movement Monitor of Slope Study in Open-pit Coal MineJIANG Wen-hua38-3914Preliminary Discussion on Slope Stability of Producing Opencast40-4215Study of Using Pinpoint Blasting Technology in Open-pit Coal Mine43-4516Research on Reducing Influence of Vibration of Blasting on Surrounding Building in Open-pit Coal Mine46-4817Blasting Method of Bench Hard-top in Heidaigou Open-pit Coal Mine49,5218Feasibility Study of Reducing Deep Hole Blasting Large Coal Ratio in Yongping Copper MineHU Jian50-5219Digitization Platting and Quality Controlling of Water Hinge Western Ⅱ Sign in Chaozhou53-54,5720Determination of Steel Core Rubber-belt Vulcanize Parameter and Vulcanize Matters Need AttentionXIN Xu55-57 