Study on the Influence of the Slope Composition of the V-shaped Tunnel on the Smoke Exhaust Efficiency of the Point Exhaust SystemFei Xie, Junmei Li, Wenbo Liu, Qiwei Dong, Cheng Hu and Zhao QiE3S Web Conf., 356 (2022) 02047DOI: https://doi.org/10.1051/e3sconf/202235602047