Abstract：By adopting the triaxial permeability test system MDS200，which was made by Institute of Mining Technology of Taiyuan University of Technology，some experimental researches are conducted on the permeability of lignite collected in Inner Mongolia Autonomons Region，China，under the condition of different volumetric stresses and different temperatures. The results indicate that，with the increase in coal burial depth，in other words，with the increase in volumetric stress，the permeability of lignite tends to decrease as a whole；under the condition of unchanged temperature and volumetric-stress，with the increase in pore pressure，the permeability of lignite has a tendency towards declining at first and then rising again. The critical point of the pore pressure is about 2 MPa. Under the condition of unchanged volumetric stress and pore pressure，with the increase in temperature(within 100 ℃)，the permeability of lignite decreases at first，then rises and decreases at last. During this process，the lowest temperature is 50 ℃，while the highest temperature is 80 ℃. When the temperature is below 50 ℃，with the increase in pore pressure，the permeability has a downtrend；when the temperature is above 50 ℃，the permeability has a uptrend.
胡耀青，赵阳升，杨栋，康志勤. 温度对褐煤渗透特性影响的试验研究[J]. 岩石力学与工程学报, 2010, 29(08): 1585-1590.
HU Yaoqing，ZHAO Yangsheng，YANG Dong，KANG Zhiqin. EXPERIMENTAL STUDY OF EFFECT OF TEMPERATURE ON PERMEABILITY CHARACTERISTICS OF LIGNITE. , 2010, 29(08): 1585-1590.
