Causes and Control Measures of MixedFree-Surface-Pressure Flow in Steep-Grade Tunnel
LI Xue-hai, LI Heng, SHI Jiao-hao
JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI . 2013, (8): 40 -45 .  DOI: 10.3969/j.issn.1001-5485.2013.08.0;2013,30(08)