TY  - CPAPER
AU  - Dongyang G
TI  - ANALYSIS OF GROUP HOLE EFFECTT TUNNEL EXCAVATION BY PBA METHOD
T2  - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining
PY  - 2019
SP  - 35
EP  - 42
DO  - 10.5593/sgem2019/1.2/s02.005
PB  - STEF92 Technology
ER  -