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| 1 | Mechanical properties and acoustic emission characteristics of thick hard roof sandstone in Shendong coal field显示文摘 | Huigui Li Huamin Li | 2017 | International Journal of Coal Science & Technology2017，4，2： | 32 |
| 2 | Trial of small gateroad pillar in top coal caving longwall mining of large mining height显示文摘Coal seams in Tashan Mine of Datong Coal Group in China average 15 m thick and have been mined by the top coal caving longwall mining method of large mining height. Mining height was 3.8 m and the top coal caving height was 11.2 m. The gateroad pillar between panels was 38 m. During retreat mining,serious bumps occurred in the gateroads on both sides of the pillar affecting safety production. Therefore,pillarless mining was experimented. Using numerical modeling and comparative study of cases of similar mining condition,it was decided to employ a 6 m wide pillar,rather than the previous 38 m wide pillar.Support system for the gateroads was designed and implemented. During gateroad development,pillar failure conditions and entry deformation were monitored. Hydraulic fracturing method was employed to cut off the K3 sandstone along the entry rib so as to reduce the abutment pressure induced during retreat mining. Support reinforcement method combining grouting and advanced reinforcement methods was proposed to insure stable gateroad ahead of mining. Methane drainage and nitrogen injection were implemented to eliminate hazards associated with mine fire and spontaneous combustion. Since the development of gateroad has just completed,and retreat mining has not begun,the effectiveness of the proposed methods is unknown at this point. However,monitoring will continue until after mining.The results will be published in a separate paper. | Li Huamin Syd Peng Li Huigui Xu Yongxiang Yuan Ruifu Yue Shuaishuai Li Kun | 2016 | International Journal of Mining Science and Technology2016，26，1： | 8 |
| 3 | Effect of rock composition microstructure and pore characteristics on its rock mechanics properties显示文摘This paper is to study the influence of composition, microstructure and pore characteristics on the rock mechanical properties. Five kinds of sandstone compositions were analyzed by using X-ray diffraction instrument. And the microstructure was observed by using scanning electron microscope. Then the pore distribution characteristic was investigated by using the low field nuclear magnetic resonance equipment. Finally, the uniaxial compression test was carried out to investigate the mechanical characteristics by using RMT150C mechanics experimental system and the uniaxial compressive strength, Poisson's ratio and elastic modulus were obtained. Compared to the analysis of the composition, structure and pore distribution and mechanical properties of the five kinds of sandstones, the relationship among composition,structure, pore distribution and mechanical properties was obtained. The results show that the composition, microstructure, pore distribution and mechanical properties of sandstone are closely related.With the decrease of feldspar and quartz particles, the compressive strength and elastic modulus increase, while the porosity decreases. | Li Huamin Li Huigui Wang Kailin Liu Chuang | 2018 | International Journal of Mining Science and Technology2018，28，2： | 6 |
| 4 | Voussoir beam model for lower strong roof strata movement in longwall mining - Case study显示文摘The paper presents the influence of varying immediate roof thickness on the lower strong roof strata movement and failure pattern in longwall coal mining with large mining height. The investigation is based on 58 geological drill holes and hydraulic shield pressure measurements around the longwall Panel 42105 of the Buertai Mine in Inner Mongolia Autonomous Region, China. The longwall Panel 42105 is characterized by relatively soft immediate roof strata of varying thickness superposed by strong strata,herein defined as lower strong roof. A voussoir beam model is adopted to interpret the structural movement of the lower strong roof strata and shield pressure measurements. It is shown that when the immediate roof is relatively thick, the broken overlying lower strong roof tends to form a stable voussoir beam with previously broken layer, thus not exerting high pressure on the hydraulic shield and working face. When the immediate roof is relatively thin, the broken overlying lower strong roof tends to behave as a cantilever beam, thus exerting higher pressure on the hydraulic shield and working face. Comparison of model predictions with measured time-weighted average shield pressure(TWAP) shows good agreement. | Chuang Liu Huamin Li Hani Mitri Dongjie Jiang Huigui Li Junfa Feng | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017，9，6： | 5 |
| 5 | High-level expression of a truncated 1,3-1,4-β-d-glucanase from Fibrobacter succinogenes in Pichia pastoris by optimization of codons and fermentation显示文摘 | Huoqing Huang Peilong Yang Huiying Luo Huigui Tang Na Shao Tiezheng Yuan Yaru Wang Yingguo Bai Bin Yao | 2008 | Applied Microbiology and Biotechnology2008，，1： | 1 |
| 6 | An early recognition algorithm for BitTorrent traffic based on improved K-means显示文摘 | RONG HUIGUI LI MINGWEI CMI LIJUN | | 0，，： | 1 |
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