TY - GENERIC DO - 10.20944/preprints201806.0127.v1 UR - http://dx.doi.org/10.20944/preprints201806.0127.v1 TI - Application of Directional Borehole Grouting Technology to Structural Complex Foor Reinforcement in Deep Underground Coal Mine T2 - Preprints AU - Wang, Qiqing AU - Li, Wenping PY - 2018 DA - 2018/06/07 PB - Preprints