局部制冷降温技术在井下长距离掘进中的应用

郭忠磊,崔嵛,王春龙

Application of Local Refrigeration and Cooling Technology in Underground Long-distance Excavation Tunnel

Zhonglei GUO,Yu CUI,Chunlong WANG

图1 -750 m中段平面图

Fig.1 Plan diagram of -750 m middle section