第四届全国坑探与隧道工程学术会议，于1997年4月28日在四川广汉市召开，于5月1日圆满结束。参加大会的60多位代表来自地矿、武警黄金、核工业、水利、水电、铁路、建材等系统生产、科研、教学及管理等部门。铁科院西南分院院长王建宇教授到会作了《中国铁路隧道建设与发展》的 The Fourth National Exploration and Tunnel Engineering Conference, held on April 28, 1997 in Guanghan, Sichuan, ended on May 1. More than 60 delegates to the conference came from such departments as the production, research, teaching and management of the mines, armed police gold, nuclear industry, water conservancy, hydropower, railways and building materials. Professor Wang Jianyu, Dean of Southwest Branch of Chinese Academy of ASTRI, made a speech entitled “Construction and Development of China’s Railway Tunnels”