|
||||||||
|
|
| 2019, Vol. 56(3): 25-30 DOI: | ||
| Characteristics Analysis and Forecast Evaluation of Gas Occurrence of the Longquanshan Tunnel on Chengdu Metro | ||
| (1 China Railway Eryuan Engineering Group Co., Ltd.，Chengdu 610031；2 China Railway Southwest Research Institute Co., Ltd.，Chengdu 611731) | ||
| Received null Revised null | ||
| Supporting info | ||
|
