内铁道部专业设计院主持,各铁路设计院与西南交大参加的八、九度地震区隧道衬砌和洞门设计原则会审会议,于1979年4月5日至9日在成都铁二院召开。会议对有关设计院提出的八、九度地震区铁路隧道与拱形明洞衬砌及洞门标准设计意见书进行了审议,对其中共同有关的原则问题进行了充分讨论, The Ministry of Railways Professional Design Institute presided over the railway design institute and the Southwest Jiaotong University to participate in the eight, nine seismic zone tunnel lining and door design principles conference, in April 5, 1979 to 9 in Chengdu Iron House was held. The meeting reviewed the standard design proposals of the tunnels and arches of Arches of Myeong-dong in the eight- and nine-degree seismological areas proposed by the Design Institute, and discussed thoroughly the principle issues concerning the common issues.