铁路隧道底部混凝土质量评定的研究与应用
张民庆,何志军,游旭,吴川,高金喜
Study and Application of Concrete Quality Evaluation at the Bottom of the Railway Tunnel
ZHANG Min -qing,HE Zhi - jun,YOU Xu,WU Chuan,GAO Jin -xi
铁道工程学报 . 2015, (9): 85 -91 .