TY - Journal of Yangtze River Scientific Research Institute A1 - DAI Zhun, SHI Hong-lian, FANG Kun, WEI Shi-hao, WU Huang-sheng T1 - Instrument of Preventing Structural Surface Settlement in Direct Shear Test Y1 - 2017-01-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 151 EP - 154 VL - 34 IS - 1 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20150980 ER -